[PATCH v3 1/5] usb: musb: move work_struct(otg_notifier_work) from core to omap glue
Commit 712d8e(fixes pm_runtime calls while atomic by using a work
queue. musb pm_runtime_get_sync call happens in interrupt context
on cable attach case. That can result in re-enabling the interrupts and
cause side affect. To avoid this deferred processing is used)
While the issue and the work queue implementation is specific to omap
(omap2430.c), the work_struct is defined as a member of struct musb
(musb_core.h). Hence moved the work_struct from musb_core to omap
glue.
Cc: Vikram Pandita
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/musb_core.h |2 --
drivers/usb/musb/omap2430.c | 24 +++-
2 files changed, 15 insertions(+), 11 deletions(-)
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index f4a40f0..dbcdeea 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -327,7 +327,6 @@ struct musb {
irqreturn_t (*isr)(int, void *);
struct work_struct irq_work;
- struct work_struct otg_notifier_work;
u16 hwvers;
/* this hub status bit is reserved by USB 2.0 and not seen by usbcore */
@@ -373,7 +372,6 @@ struct musb {
u16 int_tx;
struct usb_phy *xceiv;
- u8 xceiv_event;
int nIrq;
unsignedirq_wake:1;
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index e279cf3..f40c805 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -41,6 +41,8 @@
struct omap2430_glue {
struct device *dev;
struct platform_device *musb;
+ u8 xceiv_event;
+ struct work_struct omap_musb_mailbox_work;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -226,22 +228,26 @@ static inline void omap2430_low_level_init(struct musb
*musb)
static int musb_otg_notifications(struct notifier_block *nb,
unsigned long event, void *unused)
{
- struct musb *musb = container_of(nb, struct musb, nb);
+ struct musb *musb = container_of(nb, struct musb, nb);
+ struct device *dev = musb->controller;
+ struct omap2430_glue*glue = dev_get_drvdata(dev->parent);
- musb->xceiv_event = event;
- schedule_work(&musb->otg_notifier_work);
+ glue->xceiv_event = event;
+ schedule_work(&glue->omap_musb_mailbox_work);
return NOTIFY_OK;
}
-static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
+static void omap_musb_mailbox_work(struct work_struct *data_notifier_work)
{
- struct musb *musb = container_of(data_notifier_work, struct musb,
otg_notifier_work);
+ struct omap2430_glue *glue = container_of(data_notifier_work,
+ struct omap2430_glue, omap_musb_mailbox_work);
+ struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
- switch (musb->xceiv_event) {
+ switch (glue->xceiv_event) {
case USB_EVENT_ID:
dev_dbg(musb->controller, "ID GND\n");
@@ -298,8 +304,6 @@ static int omap2430_musb_init(struct musb *musb)
return -ENODEV;
}
- INIT_WORK(&musb->otg_notifier_work, musb_otg_notifier_work);
-
status = pm_runtime_get_sync(dev);
if (status < 0) {
dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status);
@@ -388,7 +392,6 @@ static void omap2430_musb_disable(struct musb *musb)
static int omap2430_musb_exit(struct musb *musb)
{
del_timer_sync(&musb_idle_timer);
- cancel_work_sync(&musb->otg_notifier_work);
omap2430_low_level_exit(musb);
usb_put_phy(musb->xceiv);
@@ -441,6 +444,8 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
platform_set_drvdata(pdev, glue);
+ INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work);
+
ret = platform_device_add_resources(musb, pdev->resource,
pdev->num_resources);
if (ret) {
@@ -478,6 +483,7 @@ static int __devexit omap2430_remove(struct platform_device
*pdev)
{
struct omap2430_glue*glue = platform_get_drvdata(pdev);
+ cancel_work_sync(&glue->omap_musb_mailbox_work);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
kfree(glue);
--
1.7.5.4
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[PATCH v3 0/5] usb: musb: cleanup
Most part of this patch series was obtained by splitting [RFC PATCH 2/3] usb: musb: omap glue: use omap-usb2 as the phy driver. TO DO: * dt adaptation of musb omap glue, twl4030, twl6030. * Use control module driver API to write to control module registers (mailbox and power control of phy) * send usb2 phy driver * make musb omap glue use usb2 phy driver and make twl630 as a comparator driver. Changes from v2: * Added a condition in twl4030 to avoid spurious disconnect event message to the omap glue, on bootup if the cable is not connected. Changes from v1: Changed the commit log of *usb: musb: move work_struct(otg_notifier_work) from core to omap glue* as per Sergei's suggestion. Patch series depends on [PATCH v7 0/3] usb: multi-phy support Developed and Tested on. git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git musb commit 2ed9127cff9a255b7671b8d3d938109f68a87961 Author: Mantesh Sarasetti Date: Fri Jun 1 14:54:30 2012 +0300 usb: musb: host: Disable MUSB DMA mode incase of DMA channel request failure Performed device mode testing in omap4 panda and omap3 beagle. Kishon Vijay Abraham I (5): usb: musb: move work_struct(otg_notifier_work) from core to omap glue usb: musb: twl: use mailbox API to send VBUS or ID events drivers: usb: musb: move otg specific initializations from twl to glue usb: musb: omap: use devres API to allocate resources drivers: usb: otg: twl: use devres API to allocate resources drivers/usb/musb/musb_core.h |2 - drivers/usb/musb/omap2430.c | 122 +--- drivers/usb/otg/twl4030-usb.c | 67 -- drivers/usb/otg/twl6030-usb.c | 69 --- include/linux/usb/musb-omap.h | 30 ++ 5 files changed, 155 insertions(+), 135 deletions(-) create mode 100644 include/linux/usb/musb-omap.h -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v3 3/5] drivers: usb: musb: move otg specific initializations from twl to glue
Moved otg specific state(OTG_STATE_B_IDLE, OTG_STATE_A_IDLE) initializations
from twl to glue. These initializations are removed from twl4030 and
twl6030 and moved to the mailbox API defined in glue.
This is part of the cleanup in preparation to make use of usb2 phy
driver.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c |5 +
drivers/usb/otg/twl4030-usb.c |8
drivers/usb/otg/twl6030-usb.c |6 --
3 files changed, 5 insertions(+), 14 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 0636870..c4dc92b 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -249,11 +249,14 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
+ struct usb_otg *otg = musb->xceiv->otg;
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
dev_dbg(dev, "ID GND\n");
+ otg->default_a = true;
+ musb->xceiv->state = OTG_STATE_A_IDLE;
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
@@ -265,6 +268,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
case OMAP_MUSB_VBUS_VALID:
dev_dbg(dev, "VBUS Connect\n");
+ otg->default_a = false;
+ musb->xceiv->state = OTG_STATE_B_IDLE;
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 77f4ff6..990263e 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -251,7 +251,6 @@ static enum omap_musb_vbus_id_status
{
int status;
enum omap_musb_vbus_id_status linkstat = OMAP_MUSB_UNKNOWN;
- struct usb_otg *otg = twl->phy.otg;
twl->vbus_supplied = false;
@@ -291,13 +290,6 @@ static enum omap_musb_vbus_id_status
spin_lock_irq(&twl->lock);
twl->linkstat = linkstat;
- if (linkstat == OMAP_MUSB_ID_GROUND) {
- otg->default_a = true;
- twl->phy.state = OTG_STATE_A_IDLE;
- } else {
- otg->default_a = false;
- twl->phy.state = OTG_STATE_B_IDLE;
- }
spin_unlock_irq(&twl->lock);
return linkstat;
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 6c75883..66cfea7 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -256,7 +256,6 @@ static DEVICE_ATTR(vbus, 0444, twl6030_usb_vbus_show, NULL);
static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
{
struct twl6030_usb *twl = _twl;
- struct usb_otg *otg = twl->phy.otg;
enum omap_musb_vbus_id_status status = OMAP_MUSB_UNKNOWN;
u8 vbus_state, hw_state;
@@ -269,8 +268,6 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
regulator_enable(twl->usb3v3);
twl->asleep = 1;
status = OMAP_MUSB_VBUS_VALID;
- otg->default_a = false;
- twl->phy.state = OTG_STATE_B_IDLE;
twl->linkstat = status;
omap_musb_mailbox(status);
} else {
@@ -293,7 +290,6 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl)
static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
{
struct twl6030_usb *twl = _twl;
- struct usb_otg *otg = twl->phy.otg;
enum omap_musb_vbus_id_status status = OMAP_MUSB_UNKNOWN;
u8 hw_state;
@@ -307,8 +303,6 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_SET,
0x10);
status = OMAP_MUSB_ID_GROUND;
- otg->default_a = true;
- twl->phy.state = OTG_STATE_A_IDLE;
twl->linkstat = status;
omap_musb_mailbox(status);
} else {
--
1.7.5.4
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[PATCH v3 2/5] usb: musb: twl: use mailbox API to send VBUS or ID events
The atomic notifier from twl4030/twl6030 to notifiy VBUS and ID events,
is replaced by a direct call to omap musb blue.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 94 +---
drivers/usb/otg/twl4030-usb.c | 46 ++--
drivers/usb/otg/twl6030-usb.c | 47 +---
include/linux/usb/musb-omap.h | 30 +
4 files changed, 133 insertions(+), 84 deletions(-)
create mode 100644 include/linux/usb/musb-omap.h
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index f40c805..0636870 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -34,6 +34,7 @@
#include
#include
#include
+#include
#include "musb_core.h"
#include "omap2430.h"
@@ -41,11 +42,13 @@
struct omap2430_glue {
struct device *dev;
struct platform_device *musb;
- u8 xceiv_event;
+ enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
+struct omap2430_glue *_glue;
+
static struct timer_list musb_idle_timer;
static void musb_do_idle(unsigned long _musb)
@@ -225,54 +228,58 @@ static inline void omap2430_low_level_init(struct musb
*musb)
musb_writel(musb->mregs, OTG_FORCESTDBY, l);
}
-static int musb_otg_notifications(struct notifier_block *nb,
- unsigned long event, void *unused)
+void omap_musb_mailbox(enum omap_musb_vbus_id_status status)
{
- struct musb *musb = container_of(nb, struct musb, nb);
- struct device *dev = musb->controller;
- struct omap2430_glue*glue = dev_get_drvdata(dev->parent);
+ struct omap2430_glue*glue = _glue;
+ struct musb *musb = glue_to_musb(glue);
- glue->xceiv_event = event;
- schedule_work(&glue->omap_musb_mailbox_work);
+ glue->status = status;
+ if (!musb) {
+ dev_err(glue->dev, "musb core is not yet ready\n");
+ return;
+ }
- return NOTIFY_OK;
+ schedule_work(&glue->omap_musb_mailbox_work);
}
+EXPORT_SYMBOL_GPL(omap_musb_mailbox);
-static void omap_musb_mailbox_work(struct work_struct *data_notifier_work)
+static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
- struct omap2430_glue *glue = container_of(data_notifier_work,
- struct omap2430_glue, omap_musb_mailbox_work);
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
struct omap_musb_board_data *data = pdata->board_data;
- switch (glue->xceiv_event) {
- case USB_EVENT_ID:
- dev_dbg(musb->controller, "ID GND\n");
+ switch (glue->status) {
+ case OMAP_MUSB_ID_GROUND:
+ dev_dbg(dev, "ID GND\n");
+ musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
- pm_runtime_get_sync(musb->controller);
+ pm_runtime_get_sync(dev);
usb_phy_init(musb->xceiv);
omap2430_musb_set_vbus(musb, 1);
}
break;
- case USB_EVENT_VBUS:
- dev_dbg(musb->controller, "VBUS Connect\n");
+ case OMAP_MUSB_VBUS_VALID:
+ dev_dbg(dev, "VBUS Connect\n");
+ musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
- pm_runtime_get_sync(musb->controller);
+ pm_runtime_get_sync(dev);
usb_phy_init(musb->xceiv);
break;
- case USB_EVENT_NONE:
- dev_dbg(musb->controller, "VBUS Disconnect\n");
+ case OMAP_MUSB_ID_FLOAT:
+ case OMAP_MUSB_VBUS_OFF:
+ dev_dbg(dev, "VBUS Disconnect\n");
+ musb->xceiv->last_event = USB_EVENT_NONE;
if (is_otg_enabled(musb) || is_peripheral_enabled(musb))
if (musb->gadget_driver) {
- pm_runtime_mark_last_busy(musb->controller);
- pm_runtime_put_autosuspend(musb->controller);
+ pm_runtime_mark_last_busy(dev);
+ pm_runtime_put_autosuspend(dev);
}
if (data->interface_type == MUSB_INTERFACE_UTMI) {
@@ -282,15 +289,24 @@ static void omap_musb_mailbox_work(struct work_struct
*data_notifier_work)
usb_phy_shutdown(musb->xceiv);
break;
[PATCH v3 4/5] usb: musb: omap: use devres API to allocate resources
used devres API while allocating memory resource and while getting
usb phy so that these resources are released automatically on driver
detach.
Signed-off-by: Kishon Vijay Abraham I
---
This patch uses an API thats introduced in
[PATCH v7 0/3] usb: multi-phy support
drivers/usb/musb/omap2430.c | 19 +++
1 files changed, 7 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index c4dc92b..2813490 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -319,7 +319,7 @@ static int omap2430_musb_init(struct musb *musb)
* up through ULPI. TWL4030-family PMICs include one,
* which needs a driver, drivers aren't always needed.
*/
- musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2);
+ musb->xceiv = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
if (!musb->xceiv) {
pr_err("HS USB OTG: no transceiver configured\n");
return -ENODEV;
@@ -416,7 +416,6 @@ static int omap2430_musb_exit(struct musb *musb)
del_timer_sync(&musb_idle_timer);
omap2430_low_level_exit(musb);
- usb_put_phy(musb->xceiv);
return 0;
}
@@ -443,7 +442,7 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
struct omap2430_glue*glue;
int ret = -ENOMEM;
- glue = kzalloc(sizeof(*glue), GFP_KERNEL);
+ glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
if (!glue) {
dev_err(&pdev->dev, "failed to allocate glue context\n");
goto err0;
@@ -452,7 +451,7 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
musb = platform_device_alloc("musb-hdrc", -1);
if (!musb) {
dev_err(&pdev->dev, "failed to allocate musb device\n");
- goto err1;
+ goto err0;
}
musb->dev.parent= &pdev->dev;
@@ -479,13 +478,13 @@ static int __devinit omap2430_probe(struct
platform_device *pdev)
pdev->num_resources);
if (ret) {
dev_err(&pdev->dev, "failed to add resources\n");
- goto err2;
+ goto err1;
}
ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
if (ret) {
dev_err(&pdev->dev, "failed to add platform_data\n");
- goto err2;
+ goto err1;
}
pm_runtime_enable(&pdev->dev);
@@ -493,16 +492,13 @@ static int __devinit omap2430_probe(struct
platform_device *pdev)
ret = platform_device_add(musb);
if (ret) {
dev_err(&pdev->dev, "failed to register musb device\n");
- goto err2;
+ goto err1;
}
return 0;
-err2:
- platform_device_put(musb);
-
err1:
- kfree(glue);
+ platform_device_put(musb);
err0:
return ret;
@@ -515,7 +511,6 @@ static int __devexit omap2430_remove(struct platform_device
*pdev)
cancel_work_sync(&glue->omap_musb_mailbox_work);
platform_device_del(glue->musb);
platform_device_put(glue->musb);
- kfree(glue);
return 0;
}
--
1.7.5.4
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[PATCH v3 5/5] drivers: usb: otg: twl: use devres API to allocate resources
used devres API while allocating memory resource in twl4030 and twl6030
so that these resources are released automatically on driver detach.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/otg/twl4030-usb.c | 15 +++
drivers/usb/otg/twl6030-usb.c | 16 +++-
2 files changed, 6 insertions(+), 25 deletions(-)
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 990263e..9da89b6 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -591,15 +591,13 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
return -EINVAL;
}
- twl = kzalloc(sizeof *twl, GFP_KERNEL);
+ twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
- otg = kzalloc(sizeof *otg, GFP_KERNEL);
- if (!otg) {
- kfree(twl);
+ otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
+ if (!otg)
return -ENOMEM;
- }
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
@@ -623,8 +621,6 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
err = twl4030_usb_ldo_init(twl);
if (err) {
dev_err(&pdev->dev, "ldo init failed\n");
- kfree(otg);
- kfree(twl);
return err;
}
usb_add_phy(&twl->phy, USB_PHY_TYPE_USB2);
@@ -648,8 +644,6 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
if (status < 0) {
dev_dbg(&pdev->dev, "can't get IRQ %d, err %d\n",
twl->irq, status);
- kfree(otg);
- kfree(twl);
return status;
}
@@ -693,9 +687,6 @@ static int __exit twl4030_usb_remove(struct platform_device
*pdev)
regulator_put(twl->usb1v8);
regulator_put(twl->usb3v1);
- kfree(twl->phy.otg);
- kfree(twl);
-
return 0;
}
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 66cfea7..600c27a 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -395,15 +395,13 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
struct device *dev = &pdev->dev;
pdata = dev->platform_data;
- twl = kzalloc(sizeof *twl, GFP_KERNEL);
+ twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
- otg = kzalloc(sizeof *otg, GFP_KERNEL);
- if (!otg) {
- kfree(twl);
+ otg = devm_kzalloc(dev, sizeof *otg, GFP_KERNEL);
+ if (!otg)
return -ENOMEM;
- }
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
@@ -430,8 +428,6 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
err = twl6030_usb_ldo_init(twl);
if (err) {
dev_err(&pdev->dev, "ldo init failed\n");
- kfree(otg);
- kfree(twl);
return err;
}
usb_add_phy(&twl->phy, USB_PHY_TYPE_USB2);
@@ -450,8 +446,6 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
dev_err(&pdev->dev, "can't get IRQ %d, err %d\n",
twl->irq1, status);
device_remove_file(twl->dev, &dev_attr_vbus);
- kfree(otg);
- kfree(twl);
return status;
}
@@ -463,8 +457,6 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->irq2, status);
free_irq(twl->irq1, twl);
device_remove_file(twl->dev, &dev_attr_vbus);
- kfree(otg);
- kfree(twl);
return status;
}
@@ -495,8 +487,6 @@ static int __exit twl6030_usb_remove(struct platform_device
*pdev)
pdata->phy_exit(twl->dev);
device_remove_file(twl->dev, &dev_attr_vbus);
cancel_work_sync(&twl->set_vbus_work);
- kfree(twl->phy.otg);
- kfree(twl);
return 0;
}
--
1.7.5.4
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[RFC PATCH 02/10] arm/dts: omap: Add omap-usb2 dt data
Add omap-usb2 data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 9082191..e670394 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -291,6 +291,10 @@
#address-cells = <1>;
#size-cells = <1>;
ti,hwmods = "ocp2scp_usb_phy";
+ usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+ };
};
};
};
--
1.7.5.4
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[RFC PATCH 06/10] drivers: usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 19 ++
drivers/usb/otg/twl4030-usb.c | 26 +++
2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
index b952070..4a0b060 100644
--- a/Documentation/devicetree/bindings/usb/twl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -16,3 +16,22 @@ twl6030-usb {
regulator = "vusb";
vusb-supply = <&vusb>;
};
+
+TWL4030 USB PHY AND COMPARATOR
+ - compatible : Should be "ti,twl4030-usb"
+ - interrupts : The interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts
+ and VBUS interrupts. The second interrupt number is optional.
+ - -supply : phandle to the regulator device tree node.
+should be vusb1v5, vusb1v8 and vusb3v1
+ - usb_mode : The mode used by the phy to connect to the controller. "1"
+ specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode.
+
+twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ vusb1v5-supply = <&vusb1v5>;
+ vusb1v8-supply = <&vusb1v8>;
+ vusb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+};
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 9da89b6..74855d6 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
struct twl4030_usb *twl;
int status, err;
struct usb_otg *otg;
-
- if (!pdata) {
- dev_dbg(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
- }
+ struct device_node *np = pdev->dev.of_node;
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
+ if (np)
+ of_property_read_u32(np, "usb_mode",
+ (enum twl4030_usb_mode *)&twl->usb_mode);
+ else if (pdata)
+ twl->usb_mode = pdata->usb_mode;
+ else {
+ dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg)
return -ENOMEM;
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
- twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+ { .compatible = "ti,twl4030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove),
.driver = {
.name = "twl4030_usb",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl4030_usb_id_table),
},
};
--
1.7.5.4
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[RFC PATCH 10/10] arm: omap: phy: remove unused functions from omap-phy-internal.c
All the unnessary functions in omap-phy-internal is removed.
These functionality are now handled by omap-usb2 phy driver.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
Acked-by: Tony Lindgren
---
arch/arm/mach-omap2/omap_phy_internal.c | 138 ---
arch/arm/mach-omap2/twl-common.c|5 -
2 files changed, 0 insertions(+), 143 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c
b/arch/arm/mach-omap2/omap_phy_internal.c
index b2c9253..9a9e960 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -31,144 +31,6 @@
#include
#include
-/* OMAP control module register for UTMI PHY */
-#define CONTROL_DEV_CONF 0x300
-#define PHY_PD 0x1
-
-#define USBOTGHS_CONTROL 0x33c
-#defineAVALID BIT(0)
-#defineBVALID BIT(1)
-#defineVBUSVALID BIT(2)
-#defineSESSEND BIT(3)
-#defineIDDIG BIT(4)
-
-static struct clk *phyclk, *clk48m, *clk32k;
-static void __iomem *ctrl_base;
-static int usbotghs_control;
-
-int omap4430_phy_init(struct device *dev)
-{
- ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
- if (!ctrl_base) {
- pr_err("control module ioremap failed\n");
- return -ENOMEM;
- }
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- if (!dev) {
- iounmap(ctrl_base);
- return 0;
- }
-
- phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
- if (IS_ERR(phyclk)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
- iounmap(ctrl_base);
- return PTR_ERR(phyclk);
- }
-
- clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
- if (IS_ERR(clk48m)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
- clk_put(phyclk);
- iounmap(ctrl_base);
- return PTR_ERR(clk48m);
- }
-
- clk32k = clk_get(dev, "usb_phy_cm_clk32k");
- if (IS_ERR(clk32k)) {
- dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
- clk_put(phyclk);
- clk_put(clk48m);
- iounmap(ctrl_base);
- return PTR_ERR(clk32k);
- }
- return 0;
-}
-
-int omap4430_phy_set_clk(struct device *dev, int on)
-{
- static int state;
-
- if (on && !state) {
- /* Enable the phy clocks */
- clk_enable(phyclk);
- clk_enable(clk48m);
- clk_enable(clk32k);
- state = 1;
- } else if (state) {
- /* Disable the phy clocks */
- clk_disable(phyclk);
- clk_disable(clk48m);
- clk_disable(clk32k);
- state = 0;
- }
- return 0;
-}
-
-int omap4430_phy_power(struct device *dev, int ID, int on)
-{
- if (on) {
- if (ID)
- /* enable VBUS valid, IDDIG groung */
- __raw_writel(AVALID | VBUSVALID, ctrl_base +
- USBOTGHS_CONTROL);
- else
- /*
-* Enable VBUS Valid, AValid and IDDIG
-* high impedance
-*/
- __raw_writel(IDDIG | AVALID | VBUSVALID,
- ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable session END and IDIG to high impedance. */
- __raw_writel(SESSEND | IDDIG, ctrl_base +
- USBOTGHS_CONTROL);
- }
- return 0;
-}
-
-int omap4430_phy_suspend(struct device *dev, int suspend)
-{
- if (suspend) {
- /* Disable the clocks */
- omap4430_phy_set_clk(dev, 0);
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- /* save the context */
- usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable the internel phy clcoks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
-
- /* restore the context */
- __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
- }
-
- return 0;
-}
-
-int omap4430_phy_exit(struct device *dev)
-{
- if (ctrl_base)
- iounmap(c
[RFC PATCH 04/10] drivers: usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 18 +
drivers/usb/otg/twl6030-usb.c | 41 +--
2 files changed, 46 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
new file mode 100644
index 000..b952070
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -0,0 +1,18 @@
+USB COMPARATOR OF TWL CHIPS
+
+TWL6030 USB COMPARATOR
+ - compatible : Should be "ti,twl6030-usb"
+ - interrupts : Two interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts when
+ the controller has to act as host and the second interrupt number is the
+ usb interrupt number that raises VBUS interrupts when the controller has to
+ act as device
+ - regulator : can be "vusb" or "ldousb"
+ - -supply : phandle to the regulator device tree node
+
+twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ vusb-supply = <&vusb>;
+};
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 6a361d2..725e3ef 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -105,7 +105,7 @@ struct twl6030_usb {
u8 asleep;
boolirq_enabled;
boolvbus_enable;
- unsigned long features;
+ const char *regulator;
};
#definecomparator_to_twl(x) container_of((x), struct twl6030_usb,
comparator)
@@ -153,13 +153,6 @@ static int twl6030_start_srp(struct phy_companion
*comparator)
static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
{
- char *regulator_name;
-
- if (twl->features & TWL6025_SUBCLASS)
- regulator_name = "ldousb";
- else
- regulator_name = "vusb";
-
/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
@@ -169,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
/* Program MISC2 register and set bit VUSB_IN_VBAT */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
- twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+ twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
if (IS_ERR(twl->usb3v3))
return -ENODEV;
@@ -324,9 +317,9 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
{
struct twl6030_usb *twl;
int status, err;
- struct twl4030_usb_data *pdata;
- struct device *dev = &pdev->dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct twl4030_usb_data *pdata = dev->platform_data;
twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
@@ -335,13 +328,28 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
- twl->features = pdata->features;
twl->linkstat = OMAP_MUSB_UNKNOWN;
twl->comparator.set_vbus= twl6030_set_vbus;
twl->comparator.start_srp = twl6030_start_srp;
omap_usb2_set_comparator(&twl->comparator);
+ if (np) {
+ err = of_property_read_string(np, "regulator", &twl->regulator);
+ if (err < 0) {
+ dev_err(&pdev->dev, "unable to get regulator\n");
+ return err;
+ }
+ } else if (pdata) {
+ if (pdata->features & TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -403,12 +411,19 @@ static int __exit twl6030_usb_remove(struct
platform_device *pdev)
return 0;
}
+static const struct of_device_id twl6030_usb_id_table[] = {
+ { .co
[RFC PATCH 03/10] drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 38 +++---
drivers/usb/otg/twl6030-usb.c | 114 +
2 files changed, 44 insertions(+), 108 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 2813490..9a836e8 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -35,6 +35,8 @@
#include
#include
#include
+#include
+#include
#include "musb_core.h"
#include "omap2430.h"
@@ -44,6 +46,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ struct device *control_dev;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -245,6 +248,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -260,7 +264,10 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ if (!IS_ERR(glue->control_dev)) {
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue->control_dev, val);
+ }
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +280,10 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ if (!IS_ERR(glue->control_dev)) {
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue->control_dev, val);
+ }
break;
case OMAP_MUSB_ID_FLOAT:
@@ -291,7 +301,10 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ if (!IS_ERR(glue->control_dev)) {
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue->control_dev, val);
+ }
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +379,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +389,10 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ if (!IS_ERR(glue->control_dev)) {
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue->control_dev, val);
+ }
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +411,10 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ if (!IS_ERR(glue->control_dev)) {
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue->control_dev, val);
+ }
break;
default:
@@ -404,11 +424,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u32 val;
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
- if (glue->status != OMAP_MUSB_UNKNOWN)
- usb_phy_shutdown(musb->xceiv);
+ if (glue->status != OMAP_MUSB_UNKNOWN && !IS_ERR(glue->control_dev)) {
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_ma
[RFC PATCH 09/10] arm/dts: omap: Add usb_otg and glue data
Add usb otg data node in omap4/omap3 device tree file. Also update
the node with board specific setting in omapx-.dts file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap3-beagle.dts |6 ++
arch/arm/boot/dts/omap3-evm.dts|6 ++
arch/arm/boot/dts/omap3.dtsi |8
arch/arm/boot/dts/omap4-panda.dts |6 ++
arch/arm/boot/dts/omap4-sdp.dts|6 ++
arch/arm/boot/dts/omap4.dtsi |8
6 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 5b4506c..f3d7076 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -67,3 +67,9 @@
&mmc3 {
status = "disable";
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 2eee16e..8963b3d 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -18,3 +18,9 @@
reg = <0x8000 0x1000>; /* 256 MB */
};
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 99474fa..2f565d6 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -215,5 +215,13 @@
compatible = "ti,omap3-hsmmc";
ti,hwmods = "mmc3";
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 1efe0c5..0825fa7 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -89,3 +89,9 @@
ti,non-removable;
bus-width = <4>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d08c4d1..5244d51 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -158,3 +158,9 @@
bus-width = <4>;
ti,non-removable;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index e670394..dca0133 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -296,5 +296,13 @@
reg = <0x4a0ad080 0x58>;
};
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
--
1.7.5.4
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[RFC PATCH 08/10] drivers: usb: musb: Add device tree support for omap musb glue
Added device tree support for omap musb driver and updated the
Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
Documentation/devicetree/bindings/usb/omap-usb.txt | 32 +
drivers/usb/musb/omap2430.c| 48
2 files changed, 80 insertions(+), 0 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 1c38feb..16bc4c9 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -12,3 +12,35 @@ usb2phy@0x4a0ad080 {
compatible = "ti,omap-usb2";
reg = <0x4a0ad080 0x58>;
};
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,musb-omap2430"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+ multipoint. This is a MUSB configuration-specific setting.
+ - num_eps : Specifies the number of endpoints. This is also a
+ MUSB configuration-specific setting. Should be set to "16"
+ - ram_bits : Specifies the ram address size. Should be set to "12"
+ - interface_type : This is a board specific setting to describe the type of
+ interface between the controller and the phy. It should be "0" or "1"
+ specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+ represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply upto
+ 100mA when operating in host mode.
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+};
+
+Board specific device node entry
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 9a836e8..8e98c18 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,6 +30,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -461,8 +462,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue*glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
int ret = -ENOMEM;
glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL);
@@ -486,6 +490,43 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
glue->status= OMAP_MUSB_UNKNOWN;
glue->control_dev = omap_control_get();
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoint");
+
+ pdata->board_data = data;
+
[RFC PATCH 01/10] drivers: usb: otg: add a new driver for omap usb2 phy
All phy related programming like enabling/disabling the clocks, powering
on/off the phy is taken care of by this driver. It is also used for OTG
related functionality like srp.
This also includes device tree support for usb2 phy driver and
the documentation with device tree binding information is updated.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/misc/omap-ocp2scp.txt |3 +
Documentation/devicetree/bindings/usb/omap-usb.txt | 14 ++
drivers/usb/otg/Kconfig| 17 +-
drivers/usb/otg/Makefile |1 +
drivers/usb/otg/omap-usb2.c| 239
include/linux/usb/omap_usb.h | 43
include/linux/usb/phy_companion.h | 34 +++
7 files changed, 347 insertions(+), 4 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
create mode 100644 drivers/usb/otg/omap-usb2.c
create mode 100644 include/linux/usb/omap_usb.h
create mode 100644 include/linux/usb/phy_companion.h
diff --git a/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
index e9391d8..d1c7480 100644
--- a/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
+++ b/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
@@ -7,3 +7,6 @@ properties:
Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp
+- usb2phy :
+ The binding details of usb2phy can be found in:
+ Documentation/devicetree/bindings/usb/omap-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644
index 000..1c38feb
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,14 @@
+OMAP USB PHY AND OMAP USB GLUE
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+};
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index e2840f1..18fb625 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -73,10 +73,8 @@ config TWL6030_USB
help
Enable this to support the USB OTG transceiver on TWL6030
family chips. This TWL6030 transceiver has the VBUS and ID GND
- and OTG SRP events capabilities. For all other transceiver
functionality
- UTMI PHY is embedded in OMAP4430. The internal PHY configurations APIs
- are hooked to this driver through platform_data structure.
- The definition of internal PHY APIs are in the mach-omap2 layer.
+ and OTG SRP events capabilities. For all other transceiver
+ functionality UTMI PHY is embedded in OMAP4430.
config OMAP4_USB_PHY
tristate "Texas Instruments OMAP4+ USB pin control driver"
@@ -91,6 +89,17 @@ config OMAP4_USB_PHY
performing the above mentioned configuration, API's are added in
by this children of the control module driver.
+config OMAP_USB2
+ tristate "OMAP USB2 PHY Driver"
+ depends on OMAP_OCP2SCP
+ depends on OMAP4_USB_PHY
+ select USB_OTG_UTILS
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
select USB_OTG_UTILS
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 60c8c83..2f02912 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_ISP1301_OMAP)+= isp1301_omap.o
obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o
obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o
obj-$(CONFIG_OMAP4_USB_PHY)+= omap4-usb-phy.o
+obj-$(CONFIG_OMAP_USB2)+= omap-usb2.o
obj-$(CONFIG_NOP_USB_XCEIV)+= nop-usb-xceiv.o
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)+= ulpi_viewport.o
diff --git a/drivers/usb/otg/omap-usb2.c b/drivers/usb/otg/omap-usb2.c
new file mode 100644
index 000..d355570
--- /dev/null
+++ b/drivers/usb/otg/omap-usb2.c
@@ -0,0 +1,239 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+
[RFC PATCH 07/10] arm/dts: Add twl4030-usb data
Add twl4030-usb data node in twl4030 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl4030.dtsi | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 22f4d13..66534a3 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -37,6 +37,18 @@
regulator-max-microvolt = <315>;
};
+ vusb1v5: regulator@3 {
+ compatible = "ti,twl4030-vusb1v5";
+ };
+
+ vusb1v8: regulator@4 {
+ compatible = "ti,twl4030-vusb1v8";
+ };
+
+ vusb3v1: regulator@5 {
+ compatible = "ti,twl4030-vusb3v1";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
@@ -44,4 +56,13 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+ };
};
--
1.7.5.4
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[RFC PATCH 00/10] omap: musb: Add device tree support
This patch series adds device tree support for MUSB and device tree support for all the related modules to get MUSB working in OMAP platform. A new omap-usb2 phy driver has been added (with only dt suppport) to perform phy configurations. Previously this configuration was performed by twl6030, using pdata function pointers. With the addition of omap-usb2 to perform phy configurations, twl6030 is made as a comparator driver to detect VBUS and ID events and notify it to the glue layer. musb core is _NOT_ yet converted to support device tree support as it would need lot of driver re-design because of its enormous use of function pointers. That will be in _TO DO_ list. This series was developed on http://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-next However to test this patch series, the following patch series is needed [PATCH v7 0/3] usb: multi-phy support [PATCH v3 0/5] usb: musb: cleanup [RFC PATCH 00/11] OMAP System Control Module [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver Performed device mode testing on OMAP4 panda and OMAP3 beagle. Kishon Vijay Abraham I (10): drivers: usb: otg: add a new driver for omap usb2 phy arm/dts: omap: Add omap-usb2 dt data drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2 drivers: usb: twl6030: Add dt support for twl6030 usb arm/dts: Add twl6030-usb data drivers: usb: twl4030: Add device tree support for twl4030 usb arm/dts: Add twl4030-usb data drivers: usb: musb: Add device tree support for omap musb glue arm/dts: omap: Add usb_otg and glue data arm: omap: phy: remove unused functions from omap-phy-internal.c .../devicetree/bindings/misc/omap-ocp2scp.txt |3 + Documentation/devicetree/bindings/usb/omap-usb.txt | 46 .../devicetree/bindings/usb/twl-usb.txt| 37 +++ arch/arm/boot/dts/omap3-beagle.dts |6 + arch/arm/boot/dts/omap3-evm.dts|6 + arch/arm/boot/dts/omap3.dtsi |8 + arch/arm/boot/dts/omap4-panda.dts |6 + arch/arm/boot/dts/omap4-sdp.dts|6 + arch/arm/boot/dts/omap4.dtsi | 12 + arch/arm/boot/dts/twl4030.dtsi | 21 ++ arch/arm/boot/dts/twl6030.dtsi |7 + arch/arm/mach-omap2/omap_phy_internal.c| 138 --- arch/arm/mach-omap2/twl-common.c |5 - drivers/usb/musb/omap2430.c| 86 +++- drivers/usb/otg/Kconfig| 17 +- drivers/usb/otg/Makefile |1 + drivers/usb/otg/omap-usb2.c| 239 drivers/usb/otg/twl4030-usb.c | 26 ++- drivers/usb/otg/twl6030-usb.c | 153 - include/linux/usb/omap_usb.h | 43 include/linux/usb/phy_companion.h | 34 +++ 21 files changed, 627 insertions(+), 273 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt create mode 100644 drivers/usb/otg/omap-usb2.c create mode 100644 include/linux/usb/omap_usb.h create mode 100644 include/linux/usb/phy_companion.h -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[RFC PATCH 05/10] arm/dts: Add twl6030-usb data
Add twl6030-usb data node in twl6030 device tree file
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl6030.dtsi |7 +++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
index 3b2f351..6526366 100644
--- a/arch/arm/boot/dts/twl6030.dtsi
+++ b/arch/arm/boot/dts/twl6030.dtsi
@@ -83,4 +83,11 @@
clk32kg: regulator@12 {
compatible = "ti,twl6030-clk32kg";
};
+
+ twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ vusb-supply = <&vusb>;
+ };
};
--
1.7.5.4
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[PATCH] drivers: usb/power: fix return value check of usb_get_phy
usb_get_phy will return -ENODEV if it's not able to find the phy. Hence
fixed all the callers of usb_get_phy to check for this error condition
instead of relying on a non-zero value as success condition.
Signed-off-by: Kishon Vijay Abraham I
---
Developed on
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git xceiv
Compile tested only for omap2plus_defconfig.
drivers/power/ab8500_charger.c|2 +-
drivers/power/isp1704_charger.c |2 +-
drivers/power/pda_power.c | 16
drivers/power/twl4030_charger.c |7 ---
drivers/usb/chipidea/udc.c|9 +
drivers/usb/gadget/fsl_udc_core.c | 15 ---
drivers/usb/gadget/mv_udc_core.c | 13 +++--
drivers/usb/gadget/omap_udc.c | 25 +
drivers/usb/gadget/pxa25x_udc.c | 11 ++-
drivers/usb/gadget/pxa27x_udc.c | 11 ++-
drivers/usb/gadget/s3c-hsudc.c|9 +
drivers/usb/host/ehci-fsl.c |5 +++--
drivers/usb/host/ehci-msm.c |2 +-
drivers/usb/host/ehci-mv.c|7 ---
drivers/usb/host/ehci-tegra.c |7 ---
drivers/usb/host/ohci-omap.c |5 +++--
drivers/usb/musb/am35x.c |3 ++-
drivers/usb/musb/blackfin.c |3 ++-
drivers/usb/musb/da8xx.c |3 ++-
drivers/usb/musb/davinci.c|3 ++-
drivers/usb/musb/musb_dsps.c |3 ++-
drivers/usb/musb/omap2430.c |2 +-
drivers/usb/musb/tusb6010.c |3 ++-
drivers/usb/musb/ux500.c |3 ++-
drivers/usb/otg/otg.c |4 ++--
25 files changed, 96 insertions(+), 77 deletions(-)
diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index 6bd6f1c..d4f0c98 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -2689,7 +2689,7 @@ static int __devinit ab8500_charger_probe(struct
platform_device *pdev)
}
di->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
- if (!di->usb_phy) {
+ if (IS_ERR_OR_NULL(di->usb_phy)) {
dev_err(di->dev, "failed to get usb transceiver\n");
ret = -EINVAL;
goto free_usb;
diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index 090e5f9..1229119 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -416,7 +416,7 @@ static int __devinit isp1704_charger_probe(struct
platform_device *pdev)
return -ENOMEM;
isp->phy = usb_get_phy(USB_PHY_TYPE_USB2);
- if (!isp->phy)
+ if (IS_ERR_OR_NULL(isp->phy))
goto fail0;
isp->dev = &pdev->dev;
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index 7602d49..8dbcd53 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -322,11 +322,11 @@ static int pda_power_probe(struct platform_device *pdev)
#ifdef CONFIG_USB_OTG_UTILS
transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
- if (transceiver && !pdata->is_usb_online) {
- pdata->is_usb_online = otg_is_usb_online;
- }
- if (transceiver && !pdata->is_ac_online) {
- pdata->is_ac_online = otg_is_ac_online;
+ if (!IS_ERR_OR_NULL(transceiver)) {
+ if (!pdata->is_usb_online)
+ pdata->is_usb_online = otg_is_usb_online;
+ if (!pdata->is_ac_online)
+ pdata->is_ac_online = otg_is_ac_online;
}
#endif
@@ -373,7 +373,7 @@ static int pda_power_probe(struct platform_device *pdev)
}
#ifdef CONFIG_USB_OTG_UTILS
- if (transceiver && pdata->use_otg_notifier) {
+ if (!IS_ERR_OR_NULL(transceiver) && pdata->use_otg_notifier) {
otg_nb.notifier_call = otg_handle_notification;
ret = usb_register_notifier(transceiver, &otg_nb);
if (ret) {
@@ -408,7 +408,7 @@ usb_supply_failed:
if (pdata->is_ac_online && ac_irq)
free_irq(ac_irq->start, &pda_psy_ac);
#ifdef CONFIG_USB_OTG_UTILS
- if (transceiver)
+ if (!IS_ERR_OR_NULL(transceiver))
usb_put_phy(transceiver);
#endif
ac_irq_failed:
@@ -443,7 +443,7 @@ static int pda_power_remove(struct platform_device *pdev)
if (pdata->is_ac_online)
power_supply_unregister(&pda_psy_ac);
#ifdef CONFIG_USB_OTG_UTILS
- if (transceiver)
+ if (!IS_ERR_OR_NULL(transceiver))
usb_put_phy(transceiver);
#endif
if (ac_draw) {
diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c
index 13f9db2..7cacbaa 100644
--- a/drivers/power/twl4030_charger.c
+++ b/drivers/power/twl4030_charger.c
@@ -15,6 +15,7 @@
#include
#include
#include
+#include
#include
#include
#include
[PATCH v1 00/11] omap: musb: Add device tree support
This patch series adds device tree support for MUSB and device tree support for all the related modules to get MUSB working in OMAP platform. A new omap-usb2 phy driver has been added (with only dt suppport) to perform phy configurations. Previously this configuration was performed by twl6030, using pdata function pointers. With the addition of omap-usb2 to perform phy configurations, twl6030 is made as a comparator driver to detect VBUS and ID events and notify it to the glue layer. musb core is _NOT_ yet converted to support device tree support as it would need lot of driver re-design because of its enormous use of function pointers. That will be in _TO DO_ list. Changes from RFC: Removed the dependency on [RFC PATCH 00/11] OMAP System Control Module. Writing to control module register is now handled in otg driver itself. Once the system control module driver get upstreamed, I'll send a patch to make use of API's in control module driver to write to control module register. This series was developed on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git xceiv This patch series depends on [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver. there is still some discussion on where to place the ocp2scp driver. Once that gets finalized, I'll resend this patch series again with that adaptaion. Performed MUSB device mode testing on OMAP4 panda, OMAP4 SDP and OMAP3 beagle. Kishon Vijay Abraham I (11): drivers: usb: otg: add a new driver for omap usb2 phy arm/dts: omap: Add omap-usb2 dt data drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2 arm: omap: hwmod: add a new addr space in otg for writing to control module drivers: usb: twl6030: Add dt support for twl6030 usb arm/dts: Add twl6030-usb data drivers: usb: twl4030: Add device tree support for twl4030 usb arm/dts: Add twl4030-usb data drivers: usb: musb: Add device tree support for omap musb glue arm/dts: omap: Add usb_otg and glue data arm: omap: phy: remove unused functions from omap-phy-internal.c .../devicetree/bindings/misc/omap-ocp2scp.txt |3 + Documentation/devicetree/bindings/usb/omap-usb.txt | 48 .../devicetree/bindings/usb/twl-usb.txt| 37 +++ arch/arm/boot/dts/omap3-beagle.dts |6 + arch/arm/boot/dts/omap3-evm.dts|6 + arch/arm/boot/dts/omap3.dtsi |8 + arch/arm/boot/dts/omap4-panda.dts |6 + arch/arm/boot/dts/omap4-sdp.dts|6 + arch/arm/boot/dts/omap4.dtsi | 13 + arch/arm/boot/dts/twl4030.dtsi | 21 ++ arch/arm/boot/dts/twl6030.dtsi |7 + arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 + arch/arm/mach-omap2/omap_phy_internal.c| 138 -- arch/arm/mach-omap2/twl-common.c |5 - arch/arm/mach-omap2/usb-musb.c |3 - drivers/usb/musb/omap2430.c| 104 +++- drivers/usb/musb/omap2430.h|9 + drivers/usb/otg/Kconfig| 10 + drivers/usb/otg/Makefile |1 + drivers/usb/otg/omap-usb2.c| 273 drivers/usb/otg/twl4030-usb.c | 28 ++- drivers/usb/otg/twl6030-usb.c | 157 include/linux/usb/omap_usb.h | 45 include/linux/usb/phy_companion.h | 34 +++ 24 files changed, 701 insertions(+), 272 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt create mode 100644 drivers/usb/otg/omap-usb2.c create mode 100644 include/linux/usb/omap_usb.h create mode 100644 include/linux/usb/phy_companion.h -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v1 01/11] drivers: usb: otg: add a new driver for omap usb2 phy
All phy related programming like enabling/disabling the clocks, powering
on/off the phy is taken care of by this driver. It is also used for OTG
related functionality like srp.
This also includes device tree support for usb2 phy driver and
the documentation with device tree binding information is updated.
Currently writing to control module register is taken care in this
driver which will be removed once the control module driver is in place.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/misc/omap-ocp2scp.txt |3 +
Documentation/devicetree/bindings/usb/omap-usb.txt | 16 ++
drivers/usb/otg/Kconfig| 10 +
drivers/usb/otg/Makefile |1 +
drivers/usb/otg/omap-usb2.c| 273
include/linux/usb/omap_usb.h | 45
include/linux/usb/phy_companion.h | 34 +++
7 files changed, 382 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
create mode 100644 drivers/usb/otg/omap-usb2.c
create mode 100644 include/linux/usb/omap_usb.h
create mode 100644 include/linux/usb/phy_companion.h
diff --git a/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
index e9391d8..d1c7480 100644
--- a/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
+++ b/Documentation/devicetree/bindings/misc/omap-ocp2scp.txt
@@ -7,3 +7,6 @@ properties:
Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp
+- usb2phy :
+ The binding details of usb2phy can be found in:
+ Documentation/devicetree/bindings/usb/omap-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644
index 000..80a28c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,16 @@
+OMAP USB PHY
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device. Also
+add the address of control module dev conf register until a driver for
+control module is added
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+};
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 5c87db0..c751db7 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -78,6 +78,16 @@ config TWL6030_USB
are hooked to this driver through platform_data structure.
The definition of internal PHY APIs are in the mach-omap2 layer.
+config OMAP_USB2
+ tristate "OMAP USB2 PHY Driver"
+ depends on OMAP_OCP2SCP
+ select USB_OTG_UTILS
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
select USB_OTG_UTILS
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 41aa509..2c2a3ca 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o
obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o
+obj-$(CONFIG_OMAP_USB2)+= omap-usb2.o
obj-$(CONFIG_NOP_USB_XCEIV)+= nop-usb-xceiv.o
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)+= ulpi_viewport.o
diff --git a/drivers/usb/otg/omap-usb2.c b/drivers/usb/otg/omap-usb2.c
new file mode 100644
index 000..58bb3fe
--- /dev/null
+++ b/drivers/usb/otg/omap-usb2.c
@@ -0,0 +1,273 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ * this phy
+ * @compa
[PATCH v1 02/11] arm/dts: omap: Add omap-usb2 dt data
Add omap-usb2 data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index bda5df3..4d2dcc1 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -279,6 +279,11 @@
#size-cells = <1>;
ranges;
ti,hwmods = "ocp2scp_usb_phy";
+ usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>,
+ <0x4a002300 0x1>;
+ };
};
};
};
--
1.7.5.4
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[PATCH v1 04/11] arm: omap: hwmod: add a new addr space in otg for writing to control module
The mailbox register for usb otg in omap is present in control module.
On detection of any events VBUS or ID, this register should be written
to send the notification to musb core.
Till we have a separate control module driver to write to control module,
omap2430 will handle the register writes to control module by itself. So
a new address space to represent this control module register is added
to usb_otg_hs.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 249ff76..2c28754 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -5897,6 +5897,11 @@ static struct omap_hwmod_addr_space
omap44xx_usb_otg_hs_addrs[] = {
.pa_end = 0x4a0ab003,
.flags = ADDR_TYPE_RT
},
+ {
+ .pa_start = 0x4a00233c,
+ .pa_end = 0x4a00233f,
+ .flags = ADDR_TYPE_RT
+ },
{ }
};
--
1.7.5.4
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[PATCH v1 08/11] arm/dts: Add twl4030-usb data
Add twl4030-usb data node in twl4030 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl4030.dtsi | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 22f4d13..66534a3 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -37,6 +37,18 @@
regulator-max-microvolt = <315>;
};
+ vusb1v5: regulator@3 {
+ compatible = "ti,twl4030-vusb1v5";
+ };
+
+ vusb1v8: regulator@4 {
+ compatible = "ti,twl4030-vusb1v8";
+ };
+
+ vusb3v1: regulator@5 {
+ compatible = "ti,twl4030-vusb3v1";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
@@ -44,4 +56,13 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+ };
};
--
1.7.5.4
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[PATCH v1 06/11] arm/dts: Add twl6030-usb data
Add twl6030-usb data node in twl6030 device tree file
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl6030.dtsi |7 +++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
index 3b2f351..6526366 100644
--- a/arch/arm/boot/dts/twl6030.dtsi
+++ b/arch/arm/boot/dts/twl6030.dtsi
@@ -83,4 +83,11 @@
clk32kg: regulator@12 {
compatible = "ti,twl6030-clk32kg";
};
+
+ twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ vusb-supply = <&vusb>;
+ };
};
--
1.7.5.4
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[PATCH v1 10/11] arm/dts: omap: Add usb_otg and glue data
Add usb otg data node in omap4/omap3 device tree file. Also update
the node with board specific setting in omapx-.dts file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap3-beagle.dts |6 ++
arch/arm/boot/dts/omap3-evm.dts|6 ++
arch/arm/boot/dts/omap3.dtsi |8
arch/arm/boot/dts/omap4-panda.dts |6 ++
arch/arm/boot/dts/omap4-sdp.dts|6 ++
arch/arm/boot/dts/omap4.dtsi |8
6 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 5b4506c..f3d7076 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -67,3 +67,9 @@
&mmc3 {
status = "disable";
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 2eee16e..8963b3d 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -18,3 +18,9 @@
reg = <0x8000 0x1000>; /* 256 MB */
};
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 99474fa..2f565d6 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -215,5 +215,13 @@
compatible = "ti,omap3-hsmmc";
ti,hwmods = "mmc3";
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 1efe0c5..0825fa7 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -89,3 +89,9 @@
ti,non-removable;
bus-width = <4>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d08c4d1..5244d51 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -158,3 +158,9 @@
bus-width = <4>;
ti,non-removable;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 4d2dcc1..bc7b3c3 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -285,5 +285,13 @@
<0x4a002300 0x1>;
};
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
--
1.7.5.4
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[PATCH v1 11/11] arm: omap: phy: remove unused functions from omap-phy-internal.c
All the unnessary functions in omap-phy-internal is removed.
These functionality are now handled by omap-usb2 phy driver.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
Acked-by: Tony Lindgren
---
arch/arm/mach-omap2/omap_phy_internal.c | 138 ---
arch/arm/mach-omap2/twl-common.c|5 -
arch/arm/mach-omap2/usb-musb.c |3 -
3 files changed, 0 insertions(+), 146 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c
b/arch/arm/mach-omap2/omap_phy_internal.c
index 4c90477..0c610b4 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -31,144 +31,6 @@
#include
#include "control.h"
-/* OMAP control module register for UTMI PHY */
-#define CONTROL_DEV_CONF 0x300
-#define PHY_PD 0x1
-
-#define USBOTGHS_CONTROL 0x33c
-#defineAVALID BIT(0)
-#defineBVALID BIT(1)
-#defineVBUSVALID BIT(2)
-#defineSESSEND BIT(3)
-#defineIDDIG BIT(4)
-
-static struct clk *phyclk, *clk48m, *clk32k;
-static void __iomem *ctrl_base;
-static int usbotghs_control;
-
-int omap4430_phy_init(struct device *dev)
-{
- ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
- if (!ctrl_base) {
- pr_err("control module ioremap failed\n");
- return -ENOMEM;
- }
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- if (!dev) {
- iounmap(ctrl_base);
- return 0;
- }
-
- phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
- if (IS_ERR(phyclk)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
- iounmap(ctrl_base);
- return PTR_ERR(phyclk);
- }
-
- clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
- if (IS_ERR(clk48m)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
- clk_put(phyclk);
- iounmap(ctrl_base);
- return PTR_ERR(clk48m);
- }
-
- clk32k = clk_get(dev, "usb_phy_cm_clk32k");
- if (IS_ERR(clk32k)) {
- dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
- clk_put(phyclk);
- clk_put(clk48m);
- iounmap(ctrl_base);
- return PTR_ERR(clk32k);
- }
- return 0;
-}
-
-int omap4430_phy_set_clk(struct device *dev, int on)
-{
- static int state;
-
- if (on && !state) {
- /* Enable the phy clocks */
- clk_enable(phyclk);
- clk_enable(clk48m);
- clk_enable(clk32k);
- state = 1;
- } else if (state) {
- /* Disable the phy clocks */
- clk_disable(phyclk);
- clk_disable(clk48m);
- clk_disable(clk32k);
- state = 0;
- }
- return 0;
-}
-
-int omap4430_phy_power(struct device *dev, int ID, int on)
-{
- if (on) {
- if (ID)
- /* enable VBUS valid, IDDIG groung */
- __raw_writel(AVALID | VBUSVALID, ctrl_base +
- USBOTGHS_CONTROL);
- else
- /*
-* Enable VBUS Valid, AValid and IDDIG
-* high impedance
-*/
- __raw_writel(IDDIG | AVALID | VBUSVALID,
- ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable session END and IDIG to high impedance. */
- __raw_writel(SESSEND | IDDIG, ctrl_base +
- USBOTGHS_CONTROL);
- }
- return 0;
-}
-
-int omap4430_phy_suspend(struct device *dev, int suspend)
-{
- if (suspend) {
- /* Disable the clocks */
- omap4430_phy_set_clk(dev, 0);
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- /* save the context */
- usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable the internel phy clcoks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
-
- /* restore the context */
- __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
- }
-
- return 0;
-}
-
-int omap4430_phy_exit(
[PATCH v1 09/11] drivers: usb: musb: Add device tree support for omap musb glue
Added device tree support for omap musb driver and updated the
Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
Documentation/devicetree/bindings/usb/omap-usb.txt | 34 -
drivers/usb/musb/omap2430.c| 52
2 files changed, 85 insertions(+), 1 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 80a28c9..39cdffb 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -1,4 +1,4 @@
-OMAP USB PHY
+OMAP USB PHY AND GLUE
OMAP USB2 PHY
@@ -14,3 +14,35 @@ usb2phy@0x4a0ad080 {
compatible = "ti,omap-usb2";
reg = <0x4a0ad080 0x58>;
};
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,musb-omap2430"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+ multipoint. This is a MUSB configuration-specific setting.
+ - num_eps : Specifies the number of endpoints. This is also a
+ MUSB configuration-specific setting. Should be set to "16"
+ - ram_bits : Specifies the ram address size. Should be set to "12"
+ - interface_type : This is a board specific setting to describe the type of
+ interface between the controller and the phy. It should be "0" or "1"
+ specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+ represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply upto
+ 100mA when operating in host mode.
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+};
+
+Board specific device node entry
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index a50bd73..c750f11 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,6 +30,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -469,8 +470,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue*glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
struct resource *res;
int ret = -ENOMEM;
@@ -500,6 +504,43 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
if (glue->control_otghs == NULL)
dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoint");
+
+ pdata
[PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 18
drivers/usb/otg/twl6030-usb.c | 45 ++--
2 files changed, 50 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
new file mode 100644
index 000..f293271
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -0,0 +1,18 @@
+USB COMPARATOR OF TWL CHIPS
+
+TWL6030 USB COMPARATOR
+ - compatible : Should be "ti,twl6030-usb"
+ - interrupts : Two interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts when
+ the controller has to act as host and the second interrupt number is the
+ usb interrupt number that raises VBUS interrupts when the controller has to
+ act as device
+ - regulator : can be "vusb" or "ldousb"
+ - -supply : phandle to the regulator device tree node
+
+twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ vusb-supply = <&vusb>;
+};
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 6a361d2..20b7abe 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -105,7 +105,7 @@ struct twl6030_usb {
u8 asleep;
boolirq_enabled;
boolvbus_enable;
- unsigned long features;
+ const char *regulator;
};
#definecomparator_to_twl(x) container_of((x), struct twl6030_usb,
comparator)
@@ -153,13 +153,6 @@ static int twl6030_start_srp(struct phy_companion
*comparator)
static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
{
- char *regulator_name;
-
- if (twl->features & TWL6025_SUBCLASS)
- regulator_name = "ldousb";
- else
- regulator_name = "vusb";
-
/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
@@ -169,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
/* Program MISC2 register and set bit VUSB_IN_VBAT */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
- twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+ twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
if (IS_ERR(twl->usb3v3))
return -ENODEV;
@@ -324,9 +317,9 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
{
struct twl6030_usb *twl;
int status, err;
- struct twl4030_usb_data *pdata;
- struct device *dev = &pdev->dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct twl4030_usb_data *pdata = dev->platform_data;
twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
@@ -335,13 +328,28 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
- twl->features = pdata->features;
twl->linkstat = OMAP_MUSB_UNKNOWN;
twl->comparator.set_vbus= twl6030_set_vbus;
twl->comparator.start_srp = twl6030_start_srp;
omap_usb2_set_comparator(&twl->comparator);
+ if (np) {
+ err = of_property_read_string(np, "regulator", &twl->regulator);
+ if (err < 0) {
+ dev_err(&pdev->dev, "unable to get regulator\n");
+ return err;
+ }
+ } else if (pdata) {
+ if (pdata->features & TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -403,12 +411,23 @@ static int __exit twl6030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl6030_usb_id_table[] = {
+
[PATCH v1 07/11] drivers: usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 19 +
drivers/usb/otg/twl4030-usb.c | 28 +++
2 files changed, 41 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
index f293271..2d069e4 100644
--- a/Documentation/devicetree/bindings/usb/twl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -16,3 +16,22 @@ twl6030-usb {
regulator = "vusb";
vusb-supply = <&vusb>;
};
+
+TWL4030 USB PHY AND COMPARATOR
+ - compatible : Should be "ti,twl4030-usb"
+ - interrupts : The interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts
+ and VBUS interrupts. The second interrupt number is optional.
+ - -supply : phandle to the regulator device tree node.
+should be vusb1v5, vusb1v8 and vusb3v1
+ - usb_mode : The mode used by the phy to connect to the controller. "1"
+ specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode.
+
+twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ vusb1v5-supply = <&vusb1v5>;
+ vusb1v8-supply = <&vusb1v8>;
+ vusb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+};
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 523cad5..a4e7434 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
struct twl4030_usb *twl;
int status, err;
struct usb_otg *otg;
-
- if (!pdata) {
- dev_dbg(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
- }
+ struct device_node *np = pdev->dev.of_node;
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
+ if (np)
+ of_property_read_u32(np, "usb_mode",
+ (enum twl4030_usb_mode *)&twl->usb_mode);
+ else if (pdata)
+ twl->usb_mode = pdata->usb_mode;
+ else {
+ dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg)
return -ENOMEM;
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
- twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,23 @@ static int __exit twl4030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+ { .compatible = "ti,twl4030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#else
+#define twl4030_usb_id_table NULL
+#endif
+
static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove),
.driver = {
.name = "twl4030_usb",
.owner = THIS_MODULE,
+ .of_match_table = twl4030_usb_id_table,
},
};
--
1.7.5.4
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[PATCH v1 03/11] drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.
Writing to control module which is now handled in omap2430.c should be
removed once a driver for control module is in place.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 52 ---
drivers/usb/musb/omap2430.h |9 +++
drivers/usb/otg/twl6030-usb.c | 114 +
3 files changed, 67 insertions(+), 108 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 2813490..a50bd73 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -44,6 +44,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ u32 __iomem *control_otghs;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -51,6 +52,26 @@ struct omap2430_glue *_glue;
static struct timer_list musb_idle_timer;
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+ if (glue->control_otghs)
+ writel(val, glue->control_otghs);
+}
+
static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
@@ -245,6 +266,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -260,7 +282,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +296,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
case OMAP_MUSB_ID_FLOAT:
@@ -291,7 +315,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +391,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +401,8 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +421,8 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
@@ -404,11 +432,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u3
[PATCH] arm: omap: hwmod: make *phy_48m* as the main_clk of ocp2scp
Made *ocp2scp_usb_phy_phy_48m* as the main_clk for ocp2scp.
Since this ocp2scp module does not have any fck but does have a
single opt_clock, it is added as the main_clk for ocp2scp. Also
removed phy_48m as the optional clock since it is now made as the
main clock.
Cc: Benoît Cousson
Signed-off-by: Kishon Vijay Abraham I
---
Changes from [RFC PATCH 1/5] arm: omap: hwmod: make *phy_48m* as the main_clk
of ocp2scp:
* Removed *ocp2scp_usb_phy_phy_48m* as the optional functional clock
arch/arm/mach-omap2/omap_hwmod_44xx_data.c |7 +--
1 files changed, 1 insertions(+), 6 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index f30e861..17cf933 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -2504,14 +2504,11 @@ static struct omap_hwmod_class
omap44xx_ocp2scp_hwmod_class = {
};
/* ocp2scp_usb_phy */
-static struct omap_hwmod_opt_clk ocp2scp_usb_phy_opt_clks[] = {
- { .role = "phy_48m", .clk = "ocp2scp_usb_phy_phy_48m" },
-};
-
static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod = {
.name = "ocp2scp_usb_phy",
.class = &omap44xx_ocp2scp_hwmod_class,
.clkdm_name = "l3_init_clkdm",
+ .main_clk = "ocp2scp_usb_phy_phy_48m",
.prcm = {
.omap4 = {
.clkctrl_offs =
OMAP4_CM_L3INIT_USBPHYOCP2SCP_CLKCTRL_OFFSET,
@@ -2519,8 +2516,6 @@ static struct omap_hwmod omap44xx_ocp2scp_usb_phy_hwmod =
{
.modulemode = MODULEMODE_HWCTRL,
},
},
- .opt_clks = ocp2scp_usb_phy_opt_clks,
- .opt_clks_cnt = ARRAY_SIZE(ocp2scp_usb_phy_opt_clks),
};
/*
--
1.7.5.4
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[PATCH 0/2] omap: add ocp2scp as a bus driver
This patch series is done as a preparatory step for adding phy drivers for dwc3 and musb. This series adds a new driver for ocp2scp (only dt) to which phy drivers are connected. Since currently there is no generic way to create a child device along with doing a pm_runtime_enable (the exact requirement for ocp2scp), I'm creating a separate driver for ocp2scp. Changes from [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver: Created a new folder drivers/bus and moved ocp2scp driver from misc to drivers/bus. This patch was developed and tested on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git Kishon Vijay Abraham I (2): drivers: bus: add a new driver for omap-ocp2scp arm/dts: omap4: Add ocp2scp data .../devicetree/bindings/bus/omap-ocp2scp.txt | 10 ++ arch/arm/boot/dts/omap4.dtsi |8 ++ drivers/Kconfig|2 + drivers/Makefile |2 + drivers/bus/Kconfig| 15 +++ drivers/bus/Makefile |5 + drivers/bus/omap-ocp2scp.c | 98 7 files changed, 140 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt create mode 100644 drivers/bus/Kconfig create mode 100644 drivers/bus/Makefile create mode 100644 drivers/bus/omap-ocp2scp.c -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH 2/2] arm/dts: omap4: Add ocp2scp data
Add ocp2scp data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 359c497..bda5df3 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -272,5 +272,13 @@
ti,hwmods = "mmc5";
ti,needs-special-reset;
};
+
+ ocp2scp@4a0ad000 {
+ compatible = "ti,omap-ocp2scp";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ ti,hwmods = "ocp2scp_usb_phy";
+ };
};
};
--
1.7.5.4
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[PATCH 1/2] drivers: bus: add a new driver for omap-ocp2scp
Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
USB2PHY is connected to ocp2scp.
This also includes device tree support for ocp2scp driver and
the documentation with device tree binding information is updated.
Cc: Felipe Balbi
Cc: Arnd Bergmann
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/bus/omap-ocp2scp.txt | 10 ++
drivers/Kconfig|2 +
drivers/Makefile |2 +
drivers/bus/Kconfig| 15 +++
drivers/bus/Makefile |5 +
drivers/bus/omap-ocp2scp.c | 98
6 files changed, 132 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
create mode 100644 drivers/bus/Kconfig
create mode 100644 drivers/bus/Makefile
create mode 100644 drivers/bus/omap-ocp2scp.c
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
new file mode 100644
index 000..d2fe064
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -0,0 +1,10 @@
+* OMAP OCP2SCP - ocp interface to scp interface
+
+properties:
+- compatible : Should be "ti,omap-ocp2scp"
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+- ranges : the child address space are mapped 1:1 onto the parent address space
+- ti,hwmods : must be "ocp2scp_usb_phy"
+
+Sub-nodes:
+All the devices connected to ocp2scp are described using sub-node to ocp2scp
diff --git a/drivers/Kconfig b/drivers/Kconfig
index bfc9186..4fe1e4c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -2,6 +2,8 @@ menu "Device Drivers"
source "drivers/base/Kconfig"
+source "drivers/bus/Kconfig"
+
source "drivers/connector/Kconfig"
source "drivers/mtd/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 2ba29ff..cac3819 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,8 @@
# Rewritten to use lists instead of if-statements.
#
+obj-y += bus/
+
# GPIO must come after pinctrl as gpios may need to mux pins etc
obj-y += pinctrl/
obj-y += gpio/
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
new file mode 100644
index 000..6270415
--- /dev/null
+++ b/drivers/bus/Kconfig
@@ -0,0 +1,15 @@
+#
+# Bus Devices
+#
+
+menu "Bus devices"
+
+config OMAP_OCP2SCP
+ tristate "OMAP OCP2SCP DRIVER"
+ help
+ Driver to enable ocp2scp module which transforms ocp interface
+ protocol to scp protocol. In OMAP4, USB PHY is connected via
+ OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
+ OCP2SCP.
+
+endmenu
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
new file mode 100644
index 000..0ec50bc
--- /dev/null
+++ b/drivers/bus/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the bus drivers.
+#
+
+obj-$(CONFIG_OMAP_OCP2SCP) += omap-ocp2scp.o
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
new file mode 100644
index 000..8c3db3a
--- /dev/null
+++ b/drivers/bus/omap-ocp2scp.c
@@ -0,0 +1,98 @@
+/*
+ * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+static int ocp2scp_remove_devices(struct device *dev, void *c)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ platform_device_unregister(pdev);
+
+ return 0;
+}
+
+static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct device_node *np = pdev->dev.of_node;
+
+ if (np) {
+ ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to add resources for
ocp2scp child\n");
+ goto err0;
+ }
+ }
+ pm_runtime_enable(&pdev->dev);
+
+ return 0;
+
+err0:
+ device_for_each_child(&pdev->de
[PATCH v2 00/11] omap: musb: Add device tree support
This patch series adds device tree support for MUSB and device tree support for all the related modules to get MUSB working in OMAP platform. A new omap-usb2 phy driver has been added (with only dt suppport) to perform phy configurations. Previously this configuration was performed by twl6030, using pdata function pointers. With the addition of omap-usb2 to perform phy configurations, twl6030 is made as a comparator driver to detect VBUS and ID events and notify it to the glue layer. musb core is _NOT_ yet converted to support device tree support as it would need lot of driver re-design because of its enormous use of function pointers. That will be in _TO DO_ list. Changes from v1: * Fixed Rajendra Nayak comments (regulator naming, compatible naming of musb and other minor cleanups.) * It's agreed to have ocp2scp in drivers/bus and usb2 phy is a child of ocp2scp, the documentation is updated accordingly. Changes from RFC: Removed the dependency on [RFC PATCH 00/11] OMAP System Control Module. Writing to control module register is now handled in otg driver itself. Once the system control module driver get upstreamed, I'll send a patch to make use of API's in control module driver to write to control module register. This series was developed on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git xceiv This patch series depends on [PATCH 0/2] omap: add ocp2scp as a bus driver Performed MUSB device mode testing on OMAP4 panda, OMAP4 SDP and OMAP3 beagle. Kishon Vijay Abraham I (11): drivers: usb: otg: add a new driver for omap usb2 phy arm/dts: omap: Add omap-usb2 dt data drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2 arm: omap: hwmod: add a new addr space in otg fo writing to control module drivers: usb: twl6030: Add dt support for twl6030 usb arm/dts: Add twl6030-usb data drivers: usb: twl4030: Add device tree support for twl4030 usb arm/dts: Add twl4030-usb data drivers: usb: musb: Add device tree support for omap musb glue arm/dts: omap: Add usb_otg and glue data arm: omap: phy: remove unused functions from omap-phy-internal.c .../devicetree/bindings/bus/omap-ocp2scp.txt |3 + Documentation/devicetree/bindings/usb/omap-usb.txt | 48 .../devicetree/bindings/usb/twl-usb.txt| 41 +++ arch/arm/boot/dts/omap3-beagle.dts |6 + arch/arm/boot/dts/omap3-evm.dts|6 + arch/arm/boot/dts/omap3.dtsi |8 + arch/arm/boot/dts/omap4-panda.dts | 10 + arch/arm/boot/dts/omap4-sdp.dts| 10 + arch/arm/boot/dts/omap4.dtsi | 13 + arch/arm/boot/dts/twl4030.dtsi | 21 ++ arch/arm/boot/dts/twl6030.dtsi |6 + arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 + arch/arm/mach-omap2/omap_phy_internal.c| 138 -- arch/arm/mach-omap2/twl-common.c |5 - arch/arm/mach-omap2/usb-musb.c |3 - drivers/usb/musb/omap2430.c| 107 +++- drivers/usb/musb/omap2430.h|9 + drivers/usb/otg/Kconfig| 10 + drivers/usb/otg/Makefile |1 + drivers/usb/otg/omap-usb2.c| 271 drivers/usb/otg/twl4030-usb.c | 26 ++- drivers/usb/otg/twl6030-usb.c | 153 +++ include/linux/usb/omap_usb.h | 45 include/linux/usb/phy_companion.h | 34 +++ 24 files changed, 706 insertions(+), 273 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt create mode 100644 drivers/usb/otg/omap-usb2.c create mode 100644 include/linux/usb/omap_usb.h create mode 100644 include/linux/usb/phy_companion.h -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v2 02/11] arm/dts: omap: Add omap-usb2 dt data
Add omap-usb2 data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index bda5df3..4d2dcc1 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -279,6 +279,11 @@
#size-cells = <1>;
ranges;
ti,hwmods = "ocp2scp_usb_phy";
+ usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>,
+ <0x4a002300 0x1>;
+ };
};
};
};
--
1.7.5.4
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[PATCH v2 06/11] arm/dts: Add twl6030-usb data
Add twl6030-usb data node in twl6030 device tree file
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4-panda.dts |4
arch/arm/boot/dts/omap4-sdp.dts |4
arch/arm/boot/dts/twl6030.dtsi|6 ++
3 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 1efe0c5..7052422 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -89,3 +89,7 @@
ti,non-removable;
bus-width = <4>;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d08c4d1..6326d7c 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -158,3 +158,7 @@
bus-width = <4>;
ti,non-removable;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
index 3b2f351..5efd6d3 100644
--- a/arch/arm/boot/dts/twl6030.dtsi
+++ b/arch/arm/boot/dts/twl6030.dtsi
@@ -83,4 +83,10 @@
clk32kg: regulator@12 {
compatible = "ti,twl6030-clk32kg";
};
+
+ twlusb: twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ };
};
--
1.7.5.4
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[PATCH v2 04/11] arm: omap: hwmod: add a new addr space in otg for writing to control module
The mailbox register for usb otg in omap is present in control module.
On detection of any events VBUS or ID, this register should be written
to send the notification to musb core.
Till we have a separate control module driver to write to control module,
omap2430 will handle the register writes to control module by itself. So
a new address space to represent this control module register is added
to usb_otg_hs.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index ba24d15..c50d828 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -5922,6 +5922,11 @@ static struct omap_hwmod_addr_space
omap44xx_usb_otg_hs_addrs[] = {
.pa_end = 0x4a0ab7ff,
.flags = ADDR_TYPE_RT
},
+ {
+ .pa_start = 0x4a00233c,
+ .pa_end = 0x4a00233f,
+ .flags = ADDR_TYPE_RT
+ },
{ }
};
--
1.7.5.4
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[PATCH v2 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 22 +++
drivers/usb/otg/twl6030-usb.c | 39 +---
2 files changed, 48 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
new file mode 100644
index 000..e3f6d73
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -0,0 +1,22 @@
+USB COMPARATOR OF TWL CHIPS
+
+TWL6030 USB COMPARATOR
+ - compatible : Should be "ti,twl6030-usb"
+ - interrupts : Two interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts when
+ the controller has to act as host and the second interrupt number is the
+ usb interrupt number that raises VBUS interrupts when the controller has to
+ act as device
+ - usb-supply : phandle to the regulator device tree node. It should be vusb
+ if it is twl6030 or ldousb if it is twl6025 subclass.
+
+twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+};
+
+Board specific device node entry
+&twl6030-usb {
+ usb-supply = <&vusb>;
+};
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 9994dd22..6b0d0a1 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -105,7 +105,7 @@ struct twl6030_usb {
u8 asleep;
boolirq_enabled;
boolvbus_enable;
- unsigned long features;
+ const char *regulator;
};
#definecomparator_to_twl(x) container_of((x), struct twl6030_usb,
comparator)
@@ -153,13 +153,6 @@ static int twl6030_start_srp(struct phy_companion
*comparator)
static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
{
- char *regulator_name;
-
- if (twl->features & TWL6025_SUBCLASS)
- regulator_name = "ldousb";
- else
- regulator_name = "vusb";
-
/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
@@ -169,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
/* Program MISC2 register and set bit VUSB_IN_VBAT */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
- twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+ twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
if (IS_ERR(twl->usb3v3))
return -ENODEV;
@@ -321,9 +314,9 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
{
struct twl6030_usb *twl;
int status, err;
- struct twl4030_usb_data *pdata;
- struct device *dev = &pdev->dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct twl4030_usb_data *pdata = dev->platform_data;
twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
@@ -332,13 +325,24 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
- twl->features = pdata->features;
twl->linkstat = OMAP_MUSB_UNKNOWN;
twl->comparator.set_vbus= twl6030_set_vbus;
twl->comparator.start_srp = twl6030_start_srp;
omap_usb2_set_comparator(&twl->comparator);
+ if (np) {
+ twl->regulator = "usb";
+ } else if (pdata) {
+ if (pdata->features & TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -400,12 +404,21 @@ static int __exit twl6030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl6030_usb_id_table[] = {
+ { .compatible = "ti,twl6030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl6030_usb_id_table);
+#endif
+
static struct platform_d
[PATCH v2 10/11] arm/dts: omap: Add usb_otg and glue data
Add usb otg data node in omap4/omap3 device tree file. Also update
the node with board specific setting in omapx-.dts file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap3-beagle.dts |6 ++
arch/arm/boot/dts/omap3-evm.dts|6 ++
arch/arm/boot/dts/omap3.dtsi |8
arch/arm/boot/dts/omap4-panda.dts |6 ++
arch/arm/boot/dts/omap4-sdp.dts|6 ++
arch/arm/boot/dts/omap4.dtsi |8
6 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 5b4506c..f3d7076 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -67,3 +67,9 @@
&mmc3 {
status = "disable";
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 2eee16e..8963b3d 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -18,3 +18,9 @@
reg = <0x8000 0x1000>; /* 256 MB */
};
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 99474fa..f2694c9 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -215,5 +215,13 @@
compatible = "ti,omap3-hsmmc";
ti,hwmods = "mmc3";
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,omap3-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 7052422..dd19370 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -93,3 +93,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 6326d7c..0fc10d4 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -162,3 +162,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 4d2dcc1..a3ee0f9 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -285,5 +285,13 @@
<0x4a002300 0x1>;
};
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,omap4-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
--
1.7.5.4
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[PATCH v2 11/11] arm: omap: phy: remove unused functions from omap-phy-internal.c
All the unnessary functions in omap-phy-internal is removed.
These functionality are now handled by omap-usb2 phy driver.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
Acked-by: Tony Lindgren
---
arch/arm/mach-omap2/omap_phy_internal.c | 138 ---
arch/arm/mach-omap2/twl-common.c|5 -
arch/arm/mach-omap2/usb-musb.c |3 -
3 files changed, 0 insertions(+), 146 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c
b/arch/arm/mach-omap2/omap_phy_internal.c
index d52651a..874aecc 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -31,144 +31,6 @@
#include
#include "control.h"
-/* OMAP control module register for UTMI PHY */
-#define CONTROL_DEV_CONF 0x300
-#define PHY_PD 0x1
-
-#define USBOTGHS_CONTROL 0x33c
-#defineAVALID BIT(0)
-#defineBVALID BIT(1)
-#defineVBUSVALID BIT(2)
-#defineSESSEND BIT(3)
-#defineIDDIG BIT(4)
-
-static struct clk *phyclk, *clk48m, *clk32k;
-static void __iomem *ctrl_base;
-static int usbotghs_control;
-
-int omap4430_phy_init(struct device *dev)
-{
- ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
- if (!ctrl_base) {
- pr_err("control module ioremap failed\n");
- return -ENOMEM;
- }
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- if (!dev) {
- iounmap(ctrl_base);
- return 0;
- }
-
- phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
- if (IS_ERR(phyclk)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
- iounmap(ctrl_base);
- return PTR_ERR(phyclk);
- }
-
- clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
- if (IS_ERR(clk48m)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
- clk_put(phyclk);
- iounmap(ctrl_base);
- return PTR_ERR(clk48m);
- }
-
- clk32k = clk_get(dev, "usb_phy_cm_clk32k");
- if (IS_ERR(clk32k)) {
- dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
- clk_put(phyclk);
- clk_put(clk48m);
- iounmap(ctrl_base);
- return PTR_ERR(clk32k);
- }
- return 0;
-}
-
-int omap4430_phy_set_clk(struct device *dev, int on)
-{
- static int state;
-
- if (on && !state) {
- /* Enable the phy clocks */
- clk_enable(phyclk);
- clk_enable(clk48m);
- clk_enable(clk32k);
- state = 1;
- } else if (state) {
- /* Disable the phy clocks */
- clk_disable(phyclk);
- clk_disable(clk48m);
- clk_disable(clk32k);
- state = 0;
- }
- return 0;
-}
-
-int omap4430_phy_power(struct device *dev, int ID, int on)
-{
- if (on) {
- if (ID)
- /* enable VBUS valid, IDDIG groung */
- __raw_writel(AVALID | VBUSVALID, ctrl_base +
- USBOTGHS_CONTROL);
- else
- /*
-* Enable VBUS Valid, AValid and IDDIG
-* high impedance
-*/
- __raw_writel(IDDIG | AVALID | VBUSVALID,
- ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable session END and IDIG to high impedance. */
- __raw_writel(SESSEND | IDDIG, ctrl_base +
- USBOTGHS_CONTROL);
- }
- return 0;
-}
-
-int omap4430_phy_suspend(struct device *dev, int suspend)
-{
- if (suspend) {
- /* Disable the clocks */
- omap4430_phy_set_clk(dev, 0);
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- /* save the context */
- usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable the internel phy clcoks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
-
- /* restore the context */
- __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
- }
-
- return 0;
-}
-
-int omap4430_phy_exit(
[PATCH v2 09/11] drivers: usb: musb: Add device tree support for omap musb glue
Added device tree support for omap musb driver and updated the
Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
Documentation/devicetree/bindings/usb/omap-usb.txt | 34 -
drivers/usb/musb/omap2430.c| 55
2 files changed, 88 insertions(+), 1 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 80a28c9..39cdffb 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -1,4 +1,4 @@
-OMAP USB PHY
+OMAP USB PHY AND GLUE
OMAP USB2 PHY
@@ -14,3 +14,35 @@ usb2phy@0x4a0ad080 {
compatible = "ti,omap-usb2";
reg = <0x4a0ad080 0x58>;
};
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,musb-omap2430"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+ multipoint. This is a MUSB configuration-specific setting.
+ - num_eps : Specifies the number of endpoints. This is also a
+ MUSB configuration-specific setting. Should be set to "16"
+ - ram_bits : Specifies the ram address size. Should be set to "12"
+ - interface_type : This is a board specific setting to describe the type of
+ interface between the controller and the phy. It should be "0" or "1"
+ specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+ represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply upto
+ 100mA when operating in host mode.
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+};
+
+Board specific device node entry
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index addbebf..331e477 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,6 +30,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -469,8 +470,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue*glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
struct resource *res;
int ret = -ENOMEM;
@@ -500,6 +504,43 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
if (glue->control_otghs == NULL)
dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoi
[PATCH v2 07/11] drivers: usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl4030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 19 ++
drivers/usb/otg/twl4030-usb.c | 26 +++
2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
index e3f6d73..c992b3b 100644
--- a/Documentation/devicetree/bindings/usb/twl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -20,3 +20,22 @@ Board specific device node entry
&twl6030-usb {
usb-supply = <&vusb>;
};
+
+TWL4030 USB PHY AND COMPARATOR
+ - compatible : Should be "ti,twl4030-usb"
+ - interrupts : The interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts
+ and VBUS interrupts. The second interrupt number is optional.
+ - -supply : phandle to the regulator device tree node.
+should be vusb1v5, vusb1v8 and vusb3v1
+ - usb_mode : The mode used by the phy to connect to the controller. "1"
+ specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode.
+
+twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+};
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 523cad5..f0d2e75 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
struct twl4030_usb *twl;
int status, err;
struct usb_otg *otg;
-
- if (!pdata) {
- dev_dbg(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
- }
+ struct device_node *np = pdev->dev.of_node;
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
+ if (np)
+ of_property_read_u32(np, "usb_mode",
+ (enum twl4030_usb_mode *)&twl->usb_mode);
+ else if (pdata)
+ twl->usb_mode = pdata->usb_mode;
+ else {
+ dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg)
return -ENOMEM;
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
- twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+ { .compatible = "ti,twl4030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove),
.driver = {
.name = "twl4030_usb",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl4030_usb_id_table),
},
};
--
1.7.5.4
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[PATCH v2 03/11] drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.
Writing to control module which is now handled in omap2430.c should be
removed once a driver for control module is in place.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 52 ---
drivers/usb/musb/omap2430.h |9 +++
drivers/usb/otg/twl6030-usb.c | 114 +
3 files changed, 67 insertions(+), 108 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 5fdb9da..addbebf 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -44,6 +44,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ u32 __iomem *control_otghs;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -51,6 +52,26 @@ struct omap2430_glue *_glue;
static struct timer_list musb_idle_timer;
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+ if (glue->control_otghs)
+ writel(val, glue->control_otghs);
+}
+
static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
@@ -245,6 +266,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -260,7 +282,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +296,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
case OMAP_MUSB_ID_FLOAT:
@@ -291,7 +315,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +391,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +401,8 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +421,8 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
@@ -404,11 +432,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u3
[PATCH v2 01/11] drivers: usb: otg: add a new driver for omap usb2 phy
All phy related programming like enabling/disabling the clocks, powering
on/off the phy is taken care of by this driver. It is also used for OTG
related functionality like srp.
This also includes device tree support for usb2 phy driver and
the documentation with device tree binding information is updated.
Currently writing to control module register is taken care in this
driver which will be removed once the control module driver is in place.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/bus/omap-ocp2scp.txt |3 +
Documentation/devicetree/bindings/usb/omap-usb.txt | 16 ++
drivers/usb/otg/Kconfig| 10 +
drivers/usb/otg/Makefile |1 +
drivers/usb/otg/omap-usb2.c| 271
include/linux/usb/omap_usb.h | 45
include/linux/usb/phy_companion.h | 34 +++
7 files changed, 380 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
create mode 100644 drivers/usb/otg/omap-usb2.c
create mode 100644 include/linux/usb/omap_usb.h
create mode 100644 include/linux/usb/phy_companion.h
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
index d2fe064..bb0c7f4 100644
--- a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -8,3 +8,6 @@ properties:
Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp
+- usb2phy :
+ The binding details of usb2phy can be found in:
+ Documentation/devicetree/bindings/usb/omap-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644
index 000..80a28c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,16 @@
+OMAP USB PHY
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device. Also
+add the address of control module dev conf register until a driver for
+control module is added
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+};
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 5c87db0..c751db7 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -78,6 +78,16 @@ config TWL6030_USB
are hooked to this driver through platform_data structure.
The definition of internal PHY APIs are in the mach-omap2 layer.
+config OMAP_USB2
+ tristate "OMAP USB2 PHY Driver"
+ depends on OMAP_OCP2SCP
+ select USB_OTG_UTILS
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
select USB_OTG_UTILS
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 41aa509..2c2a3ca 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o
obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o
+obj-$(CONFIG_OMAP_USB2)+= omap-usb2.o
obj-$(CONFIG_NOP_USB_XCEIV)+= nop-usb-xceiv.o
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)+= ulpi_viewport.o
diff --git a/drivers/usb/otg/omap-usb2.c b/drivers/usb/otg/omap-usb2.c
new file mode 100644
index 000..4a133cf
--- /dev/null
+++ b/drivers/usb/otg/omap-usb2.c
@@ -0,0 +1,271 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ * this phy
+ * @comparato
[PATCH v2 08/11] arm/dts: Add twl4030-usb data
Add twl4030-usb data node in twl4030 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl4030.dtsi | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 22f4d13..761a5a5 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -37,6 +37,18 @@
regulator-max-microvolt = <315>;
};
+ vusb1v5: regulator-vusb1v5 {
+ compatible = "ti,twl4030-vusb1v5";
+ };
+
+ vusb1v8: regulator-vusb1v8 {
+ compatible = "ti,twl4030-vusb1v8";
+ };
+
+ vusb3v1: regulator-vusb3v1 {
+ compatible = "ti,twl4030-vusb3v1";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
@@ -44,4 +56,13 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+ };
};
--
1.7.5.4
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[PATCH v2 0/2] omap: add ocp2scp as a bus driver
This patch series is done as a preparatory step for adding phy drivers for dwc3 and musb. This series adds a new driver for ocp2scp (only dt) to which phy drivers are connected. Since currently there is no generic way to create a child device along with doing a pm_runtime_enable (the exact requirement for ocp2scp), I'm creating a separate driver for ocp2scp. Changes from v1: Fixed Sergei's comments to remove the address in the node name of ocp2scp since the ocp2scp node doesn't have a reg property. Changes from [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver: Created a new folder drivers/bus and moved ocp2scp driver from misc to drivers/bus. This patch was developed and tested on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git Kishon Vijay Abraham I (2): drivers: bus: add a new driver for omap-ocp2scp arm/dts: omap4: Add ocp2scp data .../devicetree/bindings/bus/omap-ocp2scp.txt | 10 ++ arch/arm/boot/dts/omap4.dtsi |8 ++ drivers/Kconfig|2 + drivers/Makefile |2 + drivers/bus/Kconfig| 15 +++ drivers/bus/Makefile |5 + drivers/bus/omap-ocp2scp.c | 98 7 files changed, 140 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt create mode 100644 drivers/bus/Kconfig create mode 100644 drivers/bus/Makefile create mode 100644 drivers/bus/omap-ocp2scp.c -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v2 2/2] arm/dts: omap4: Add ocp2scp data
Add ocp2scp data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 359c497..29c6243 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -272,5 +272,13 @@
ti,hwmods = "mmc5";
ti,needs-special-reset;
};
+
+ ocp2scp {
+ compatible = "ti,omap-ocp2scp";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ ti,hwmods = "ocp2scp_usb_phy";
+ };
};
};
--
1.7.5.4
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[PATCH v2 1/2] drivers: bus: add a new driver for omap-ocp2scp
Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
USB2PHY is connected to ocp2scp.
This also includes device tree support for ocp2scp driver and
the documentation with device tree binding information is updated.
Cc: Felipe Balbi
Acked-by: Arnd Bergmann
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/bus/omap-ocp2scp.txt | 10 ++
drivers/Kconfig|2 +
drivers/Makefile |2 +
drivers/bus/Kconfig| 15 +++
drivers/bus/Makefile |5 +
drivers/bus/omap-ocp2scp.c | 98
6 files changed, 132 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
create mode 100644 drivers/bus/Kconfig
create mode 100644 drivers/bus/Makefile
create mode 100644 drivers/bus/omap-ocp2scp.c
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
new file mode 100644
index 000..d2fe064
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -0,0 +1,10 @@
+* OMAP OCP2SCP - ocp interface to scp interface
+
+properties:
+- compatible : Should be "ti,omap-ocp2scp"
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+- ranges : the child address space are mapped 1:1 onto the parent address space
+- ti,hwmods : must be "ocp2scp_usb_phy"
+
+Sub-nodes:
+All the devices connected to ocp2scp are described using sub-node to ocp2scp
diff --git a/drivers/Kconfig b/drivers/Kconfig
index bfc9186..4fe1e4c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -2,6 +2,8 @@ menu "Device Drivers"
source "drivers/base/Kconfig"
+source "drivers/bus/Kconfig"
+
source "drivers/connector/Kconfig"
source "drivers/mtd/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 2ba29ff..cac3819 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -5,6 +5,8 @@
# Rewritten to use lists instead of if-statements.
#
+obj-y += bus/
+
# GPIO must come after pinctrl as gpios may need to mux pins etc
obj-y += pinctrl/
obj-y += gpio/
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
new file mode 100644
index 000..6270415
--- /dev/null
+++ b/drivers/bus/Kconfig
@@ -0,0 +1,15 @@
+#
+# Bus Devices
+#
+
+menu "Bus devices"
+
+config OMAP_OCP2SCP
+ tristate "OMAP OCP2SCP DRIVER"
+ help
+ Driver to enable ocp2scp module which transforms ocp interface
+ protocol to scp protocol. In OMAP4, USB PHY is connected via
+ OCP2SCP and in OMAP5, both USB PHY and SATA PHY is connected via
+ OCP2SCP.
+
+endmenu
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
new file mode 100644
index 000..0ec50bc
--- /dev/null
+++ b/drivers/bus/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the bus drivers.
+#
+
+obj-$(CONFIG_OMAP_OCP2SCP) += omap-ocp2scp.o
diff --git a/drivers/bus/omap-ocp2scp.c b/drivers/bus/omap-ocp2scp.c
new file mode 100644
index 000..8c3db3a
--- /dev/null
+++ b/drivers/bus/omap-ocp2scp.c
@@ -0,0 +1,98 @@
+/*
+ * omap-ocp2scp.c - transform ocp interface protocol to scp protocol
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+static int ocp2scp_remove_devices(struct device *dev, void *c)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+
+ platform_device_unregister(pdev);
+
+ return 0;
+}
+
+static int __devinit omap_ocp2scp_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct device_node *np = pdev->dev.of_node;
+
+ if (np) {
+ ret = of_platform_populate(np, NULL, NULL, &pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to add resources for
ocp2scp child\n");
+ goto err0;
+ }
+ }
+ pm_runtime_enable(&pdev->dev);
+
+ return 0;
+
+err0:
+ device_for_each_child(&pdev-
[PATCH v3 00/11] omap: musb: Add device tree support
This patch series adds device tree support for MUSB and device tree support for all the related modules to get MUSB working in OMAP platform. A new omap-usb2 phy driver has been added (with only dt suppport) to perform phy configurations. Previously this configuration was performed by twl6030, using pdata function pointers. With the addition of omap-usb2 to perform phy configurations, twl6030 is made as a comparator driver to detect VBUS and ID events and notify it to the glue layer. musb core is _NOT_ yet converted to support device tree support as it would need lot of driver re-design because of its enormous use of function pointers. That will be in _TO DO_ list. Changes from v2: Fixed Sergei's comment to remove *0x* prefix in usb2phy@0x4a0ad080 Changes from v1: * Fixed Rajendra Nayak comments (regulator naming, compatible naming of musb and other minor cleanups.) * It's agreed to have ocp2scp in drivers/bus and usb2 phy is a child of ocp2scp, the documentation is updated accordingly. Changes from RFC: Removed the dependency on [RFC PATCH 00/11] OMAP System Control Module. Writing to control module register is now handled in otg driver itself. Once the system control module driver get upstreamed, I'll send a patch to make use of API's in control module driver to write to control module register. This series was developed on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git xceiv This patch series depends on [PATCH 0/2] omap: add ocp2scp as a bus driver Performed MUSB device mode testing on OMAP4 panda, OMAP4 SDP and OMAP3 beagle. Kishon Vijay Abraham I (11): drivers: usb: otg: add a new driver for omap usb2 phy arm/dts: omap: Add omap-usb2 dt data drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2 arm: omap: hwmod: add a new addr space in otg for writing to control module drivers: usb: twl6030: Add dt support for twl6030 usb arm/dts: Add twl6030-usb data drivers: usb: twl4030: Add device tree support for twl4030 usb arm/dts: Add twl4030-usb data drivers: usb: musb: Add device tree support for omap musb glue arm/dts: omap: Add usb_otg and glue data arm: omap: phy: remove unused functions from omap-phy-internal.c .../devicetree/bindings/bus/omap-ocp2scp.txt |3 + Documentation/devicetree/bindings/usb/omap-usb.txt | 48 .../devicetree/bindings/usb/twl-usb.txt| 41 +++ arch/arm/boot/dts/omap3-beagle.dts |6 + arch/arm/boot/dts/omap3-evm.dts|6 + arch/arm/boot/dts/omap3.dtsi |8 + arch/arm/boot/dts/omap4-panda.dts | 10 + arch/arm/boot/dts/omap4-sdp.dts| 10 + arch/arm/boot/dts/omap4.dtsi | 13 + arch/arm/boot/dts/twl4030.dtsi | 21 ++ arch/arm/boot/dts/twl6030.dtsi |6 + arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 + arch/arm/mach-omap2/omap_phy_internal.c| 138 -- arch/arm/mach-omap2/twl-common.c |5 - arch/arm/mach-omap2/usb-musb.c |3 - drivers/usb/musb/omap2430.c| 107 +++- drivers/usb/musb/omap2430.h|9 + drivers/usb/otg/Kconfig| 10 + drivers/usb/otg/Makefile |1 + drivers/usb/otg/omap-usb2.c| 271 drivers/usb/otg/twl4030-usb.c | 26 ++- drivers/usb/otg/twl6030-usb.c | 153 +++ include/linux/usb/omap_usb.h | 45 include/linux/usb/phy_companion.h | 34 +++ 24 files changed, 706 insertions(+), 273 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt create mode 100644 drivers/usb/otg/omap-usb2.c create mode 100644 include/linux/usb/omap_usb.h create mode 100644 include/linux/usb/phy_companion.h -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v3 01/11] drivers: usb: otg: add a new driver for omap usb2 phy
All phy related programming like enabling/disabling the clocks, powering
on/off the phy is taken care of by this driver. It is also used for OTG
related functionality like srp.
This also includes device tree support for usb2 phy driver and
the documentation with device tree binding information is updated.
Currently writing to control module register is taken care in this
driver which will be removed once the control module driver is in place.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/bus/omap-ocp2scp.txt |3 +
Documentation/devicetree/bindings/usb/omap-usb.txt | 16 ++
drivers/usb/otg/Kconfig| 10 +
drivers/usb/otg/Makefile |1 +
drivers/usb/otg/omap-usb2.c| 271
include/linux/usb/omap_usb.h | 45
include/linux/usb/phy_companion.h | 34 +++
7 files changed, 380 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
create mode 100644 drivers/usb/otg/omap-usb2.c
create mode 100644 include/linux/usb/omap_usb.h
create mode 100644 include/linux/usb/phy_companion.h
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
index d2fe064..bb0c7f4 100644
--- a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -8,3 +8,6 @@ properties:
Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp
+- usb2phy :
+ The binding details of usb2phy can be found in:
+ Documentation/devicetree/bindings/usb/omap-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644
index 000..80a28c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,16 @@
+OMAP USB PHY
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device. Also
+add the address of control module dev conf register until a driver for
+control module is added
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+};
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 5c87db0..c751db7 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -78,6 +78,16 @@ config TWL6030_USB
are hooked to this driver through platform_data structure.
The definition of internal PHY APIs are in the mach-omap2 layer.
+config OMAP_USB2
+ tristate "OMAP USB2 PHY Driver"
+ depends on OMAP_OCP2SCP
+ select USB_OTG_UTILS
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
select USB_OTG_UTILS
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 41aa509..2c2a3ca 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o
obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o
+obj-$(CONFIG_OMAP_USB2)+= omap-usb2.o
obj-$(CONFIG_NOP_USB_XCEIV)+= nop-usb-xceiv.o
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)+= ulpi_viewport.o
diff --git a/drivers/usb/otg/omap-usb2.c b/drivers/usb/otg/omap-usb2.c
new file mode 100644
index 000..2f9e257
--- /dev/null
+++ b/drivers/usb/otg/omap-usb2.c
@@ -0,0 +1,271 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ * this phy
+ * @comparato
[PATCH v3 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 22 +++
drivers/usb/otg/twl6030-usb.c | 39 +---
2 files changed, 48 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
new file mode 100644
index 000..e3f6d73
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -0,0 +1,22 @@
+USB COMPARATOR OF TWL CHIPS
+
+TWL6030 USB COMPARATOR
+ - compatible : Should be "ti,twl6030-usb"
+ - interrupts : Two interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts when
+ the controller has to act as host and the second interrupt number is the
+ usb interrupt number that raises VBUS interrupts when the controller has to
+ act as device
+ - usb-supply : phandle to the regulator device tree node. It should be vusb
+ if it is twl6030 or ldousb if it is twl6025 subclass.
+
+twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+};
+
+Board specific device node entry
+&twl6030-usb {
+ usb-supply = <&vusb>;
+};
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 9994dd22..6b0d0a1 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -105,7 +105,7 @@ struct twl6030_usb {
u8 asleep;
boolirq_enabled;
boolvbus_enable;
- unsigned long features;
+ const char *regulator;
};
#definecomparator_to_twl(x) container_of((x), struct twl6030_usb,
comparator)
@@ -153,13 +153,6 @@ static int twl6030_start_srp(struct phy_companion
*comparator)
static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
{
- char *regulator_name;
-
- if (twl->features & TWL6025_SUBCLASS)
- regulator_name = "ldousb";
- else
- regulator_name = "vusb";
-
/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
@@ -169,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
/* Program MISC2 register and set bit VUSB_IN_VBAT */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
- twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+ twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
if (IS_ERR(twl->usb3v3))
return -ENODEV;
@@ -321,9 +314,9 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
{
struct twl6030_usb *twl;
int status, err;
- struct twl4030_usb_data *pdata;
- struct device *dev = &pdev->dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct twl4030_usb_data *pdata = dev->platform_data;
twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
@@ -332,13 +325,24 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
- twl->features = pdata->features;
twl->linkstat = OMAP_MUSB_UNKNOWN;
twl->comparator.set_vbus= twl6030_set_vbus;
twl->comparator.start_srp = twl6030_start_srp;
omap_usb2_set_comparator(&twl->comparator);
+ if (np) {
+ twl->regulator = "usb";
+ } else if (pdata) {
+ if (pdata->features & TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -400,12 +404,21 @@ static int __exit twl6030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl6030_usb_id_table[] = {
+ { .compatible = "ti,twl6030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl6030_usb_id_table);
+#endif
+
static struct platform_d
[PATCH v3 03/11] drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.
Writing to control module which is now handled in omap2430.c should be
removed once a driver for control module is in place.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 52 ---
drivers/usb/musb/omap2430.h |9 +++
drivers/usb/otg/twl6030-usb.c | 114 +
3 files changed, 67 insertions(+), 108 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 5fdb9da..addbebf 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -44,6 +44,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ u32 __iomem *control_otghs;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -51,6 +52,26 @@ struct omap2430_glue *_glue;
static struct timer_list musb_idle_timer;
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+ if (glue->control_otghs)
+ writel(val, glue->control_otghs);
+}
+
static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
@@ -245,6 +266,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -260,7 +282,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +296,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
case OMAP_MUSB_ID_FLOAT:
@@ -291,7 +315,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +391,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +401,8 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +421,8 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
@@ -404,11 +432,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u3
[PATCH v3 06/11] arm/dts: Add twl6030-usb data
Add twl6030-usb data node in twl6030 device tree file
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4-panda.dts |4
arch/arm/boot/dts/omap4-sdp.dts |4
arch/arm/boot/dts/twl6030.dtsi|6 ++
3 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 1efe0c5..7052422 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -89,3 +89,7 @@
ti,non-removable;
bus-width = <4>;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d08c4d1..6326d7c 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -158,3 +158,7 @@
bus-width = <4>;
ti,non-removable;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
index 3b2f351..5efd6d3 100644
--- a/arch/arm/boot/dts/twl6030.dtsi
+++ b/arch/arm/boot/dts/twl6030.dtsi
@@ -83,4 +83,10 @@
clk32kg: regulator@12 {
compatible = "ti,twl6030-clk32kg";
};
+
+ twlusb: twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ };
};
--
1.7.5.4
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[PATCH v3 08/11] arm/dts: Add twl4030-usb data
Add twl4030-usb data node in twl4030 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl4030.dtsi | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 22f4d13..761a5a5 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -37,6 +37,18 @@
regulator-max-microvolt = <315>;
};
+ vusb1v5: regulator-vusb1v5 {
+ compatible = "ti,twl4030-vusb1v5";
+ };
+
+ vusb1v8: regulator-vusb1v8 {
+ compatible = "ti,twl4030-vusb1v8";
+ };
+
+ vusb3v1: regulator-vusb3v1 {
+ compatible = "ti,twl4030-vusb3v1";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
@@ -44,4 +56,13 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+ };
};
--
1.7.5.4
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[PATCH v3 04/11] arm: omap: hwmod: add a new addr space in otg for writing to control module
The mailbox register for usb otg in omap is present in control module.
On detection of any events VBUS or ID, this register should be written
to send the notification to musb core.
Till we have a separate control module driver to write to control module,
omap2430 will handle the register writes to control module by itself. So
a new address space to represent this control module register is added
to usb_otg_hs.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index ba24d15..c50d828 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -5922,6 +5922,11 @@ static struct omap_hwmod_addr_space
omap44xx_usb_otg_hs_addrs[] = {
.pa_end = 0x4a0ab7ff,
.flags = ADDR_TYPE_RT
},
+ {
+ .pa_start = 0x4a00233c,
+ .pa_end = 0x4a00233f,
+ .flags = ADDR_TYPE_RT
+ },
{ }
};
--
1.7.5.4
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[PATCH v3 02/11] arm/dts: omap: Add omap-usb2 dt data
Add omap-usb2 data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 29c6243..15f1890 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -279,6 +279,11 @@
#size-cells = <1>;
ranges;
ti,hwmods = "ocp2scp_usb_phy";
+ usb2phy@4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>,
+ <0x4a002300 0x1>;
+ };
};
};
};
--
1.7.5.4
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[PATCH v3 07/11] drivers: usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl4030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 19 ++
drivers/usb/otg/twl4030-usb.c | 26 +++
2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
index e3f6d73..bdf1dd4 100644
--- a/Documentation/devicetree/bindings/usb/twl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -20,3 +20,22 @@ Board specific device node entry
&twl6030-usb {
usb-supply = <&vusb>;
};
+
+TWL4030 USB PHY AND COMPARATOR
+ - compatible : Should be "ti,twl4030-usb"
+ - interrupts : The interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts
+ and VBUS interrupts. The second interrupt number is optional.
+ - -supply : phandle to the regulator device tree node.
+should be vusb1v5, vusb1v8 and vusb3v1
+ - usb_mode : The mode used by the phy to connect to the controller. "1"
+ specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode.
+
+twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+};
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 523cad5..f0d2e75 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
struct twl4030_usb *twl;
int status, err;
struct usb_otg *otg;
-
- if (!pdata) {
- dev_dbg(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
- }
+ struct device_node *np = pdev->dev.of_node;
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
+ if (np)
+ of_property_read_u32(np, "usb_mode",
+ (enum twl4030_usb_mode *)&twl->usb_mode);
+ else if (pdata)
+ twl->usb_mode = pdata->usb_mode;
+ else {
+ dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg)
return -ENOMEM;
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
- twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+ { .compatible = "ti,twl4030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove),
.driver = {
.name = "twl4030_usb",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl4030_usb_id_table),
},
};
--
1.7.5.4
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[PATCH v3 09/11] drivers: usb: musb: Add device tree support for omap musb glue
Added device tree support for omap musb driver and updated the
Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
Documentation/devicetree/bindings/usb/omap-usb.txt | 34 -
drivers/usb/musb/omap2430.c| 55
2 files changed, 88 insertions(+), 1 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 80a28c9..39cdffb 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -1,4 +1,4 @@
-OMAP USB PHY
+OMAP USB PHY AND GLUE
OMAP USB2 PHY
@@ -14,3 +14,35 @@ usb2phy@0x4a0ad080 {
compatible = "ti,omap-usb2";
reg = <0x4a0ad080 0x58>;
};
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,musb-omap2430"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+ multipoint. This is a MUSB configuration-specific setting.
+ - num_eps : Specifies the number of endpoints. This is also a
+ MUSB configuration-specific setting. Should be set to "16"
+ - ram_bits : Specifies the ram address size. Should be set to "12"
+ - interface_type : This is a board specific setting to describe the type of
+ interface between the controller and the phy. It should be "0" or "1"
+ specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+ represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply upto
+ 100mA when operating in host mode.
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+};
+
+Board specific device node entry
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index addbebf..331e477 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,6 +30,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -469,8 +470,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue*glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
struct resource *res;
int ret = -ENOMEM;
@@ -500,6 +504,43 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
if (glue->control_otghs == NULL)
dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoi
[PATCH v3 11/11] arm: omap: phy: remove unused functions from omap-phy-internal.c
All the unnessary functions in omap-phy-internal is removed.
These functionality are now handled by omap-usb2 phy driver.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
Acked-by: Tony Lindgren
---
arch/arm/mach-omap2/omap_phy_internal.c | 138 ---
arch/arm/mach-omap2/twl-common.c|5 -
arch/arm/mach-omap2/usb-musb.c |3 -
3 files changed, 0 insertions(+), 146 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c
b/arch/arm/mach-omap2/omap_phy_internal.c
index d52651a..874aecc 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -31,144 +31,6 @@
#include
#include "control.h"
-/* OMAP control module register for UTMI PHY */
-#define CONTROL_DEV_CONF 0x300
-#define PHY_PD 0x1
-
-#define USBOTGHS_CONTROL 0x33c
-#defineAVALID BIT(0)
-#defineBVALID BIT(1)
-#defineVBUSVALID BIT(2)
-#defineSESSEND BIT(3)
-#defineIDDIG BIT(4)
-
-static struct clk *phyclk, *clk48m, *clk32k;
-static void __iomem *ctrl_base;
-static int usbotghs_control;
-
-int omap4430_phy_init(struct device *dev)
-{
- ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
- if (!ctrl_base) {
- pr_err("control module ioremap failed\n");
- return -ENOMEM;
- }
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- if (!dev) {
- iounmap(ctrl_base);
- return 0;
- }
-
- phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
- if (IS_ERR(phyclk)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
- iounmap(ctrl_base);
- return PTR_ERR(phyclk);
- }
-
- clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
- if (IS_ERR(clk48m)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
- clk_put(phyclk);
- iounmap(ctrl_base);
- return PTR_ERR(clk48m);
- }
-
- clk32k = clk_get(dev, "usb_phy_cm_clk32k");
- if (IS_ERR(clk32k)) {
- dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
- clk_put(phyclk);
- clk_put(clk48m);
- iounmap(ctrl_base);
- return PTR_ERR(clk32k);
- }
- return 0;
-}
-
-int omap4430_phy_set_clk(struct device *dev, int on)
-{
- static int state;
-
- if (on && !state) {
- /* Enable the phy clocks */
- clk_enable(phyclk);
- clk_enable(clk48m);
- clk_enable(clk32k);
- state = 1;
- } else if (state) {
- /* Disable the phy clocks */
- clk_disable(phyclk);
- clk_disable(clk48m);
- clk_disable(clk32k);
- state = 0;
- }
- return 0;
-}
-
-int omap4430_phy_power(struct device *dev, int ID, int on)
-{
- if (on) {
- if (ID)
- /* enable VBUS valid, IDDIG groung */
- __raw_writel(AVALID | VBUSVALID, ctrl_base +
- USBOTGHS_CONTROL);
- else
- /*
-* Enable VBUS Valid, AValid and IDDIG
-* high impedance
-*/
- __raw_writel(IDDIG | AVALID | VBUSVALID,
- ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable session END and IDIG to high impedance. */
- __raw_writel(SESSEND | IDDIG, ctrl_base +
- USBOTGHS_CONTROL);
- }
- return 0;
-}
-
-int omap4430_phy_suspend(struct device *dev, int suspend)
-{
- if (suspend) {
- /* Disable the clocks */
- omap4430_phy_set_clk(dev, 0);
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- /* save the context */
- usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable the internel phy clcoks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
-
- /* restore the context */
- __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
- }
-
- return 0;
-}
-
-int omap4430_phy_exit(
[PATCH v3 10/11] arm/dts: omap: Add usb_otg and glue data
Add usb otg data node in omap4/omap3 device tree file. Also update
the node with board specific setting in omapx-.dts file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap3-beagle.dts |6 ++
arch/arm/boot/dts/omap3-evm.dts|6 ++
arch/arm/boot/dts/omap3.dtsi |8
arch/arm/boot/dts/omap4-panda.dts |6 ++
arch/arm/boot/dts/omap4-sdp.dts|6 ++
arch/arm/boot/dts/omap4.dtsi |8
6 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 5b4506c..f3d7076 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -67,3 +67,9 @@
&mmc3 {
status = "disable";
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 2eee16e..8963b3d 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -18,3 +18,9 @@
reg = <0x8000 0x1000>; /* 256 MB */
};
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 99474fa..f2694c9 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -215,5 +215,13 @@
compatible = "ti,omap3-hsmmc";
ti,hwmods = "mmc3";
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,omap3-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 7052422..dd19370 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -93,3 +93,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 6326d7c..0fc10d4 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -162,3 +162,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 15f1890..3a6c3fa 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -285,5 +285,13 @@
<0x4a002300 0x1>;
};
};
+
+ usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,omap4-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
--
1.7.5.4
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[PATCH v4 04/11] arm: omap: hwmod: add a new addr space in otg for writing to control module
The mailbox register for usb otg in omap is present in control module.
On detection of any events VBUS or ID, this register should be written
to send the notification to musb core.
Till we have a separate control module driver to write to control module,
omap2430 will handle the register writes to control module by itself. So
a new address space to represent this control module register is added
to usb_otg_hs.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index ba24d15..c50d828 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -5922,6 +5922,11 @@ static struct omap_hwmod_addr_space
omap44xx_usb_otg_hs_addrs[] = {
.pa_end = 0x4a0ab7ff,
.flags = ADDR_TYPE_RT
},
+ {
+ .pa_start = 0x4a00233c,
+ .pa_end = 0x4a00233f,
+ .flags = ADDR_TYPE_RT
+ },
{ }
};
--
1.7.5.4
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[PATCH v4 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 22 +++
drivers/usb/otg/twl6030-usb.c | 39 +---
2 files changed, 48 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
new file mode 100644
index 000..e3f6d73
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -0,0 +1,22 @@
+USB COMPARATOR OF TWL CHIPS
+
+TWL6030 USB COMPARATOR
+ - compatible : Should be "ti,twl6030-usb"
+ - interrupts : Two interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts when
+ the controller has to act as host and the second interrupt number is the
+ usb interrupt number that raises VBUS interrupts when the controller has to
+ act as device
+ - usb-supply : phandle to the regulator device tree node. It should be vusb
+ if it is twl6030 or ldousb if it is twl6025 subclass.
+
+twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+};
+
+Board specific device node entry
+&twl6030-usb {
+ usb-supply = <&vusb>;
+};
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 9994dd22..6b0d0a1 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -105,7 +105,7 @@ struct twl6030_usb {
u8 asleep;
boolirq_enabled;
boolvbus_enable;
- unsigned long features;
+ const char *regulator;
};
#definecomparator_to_twl(x) container_of((x), struct twl6030_usb,
comparator)
@@ -153,13 +153,6 @@ static int twl6030_start_srp(struct phy_companion
*comparator)
static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
{
- char *regulator_name;
-
- if (twl->features & TWL6025_SUBCLASS)
- regulator_name = "ldousb";
- else
- regulator_name = "vusb";
-
/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
@@ -169,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
/* Program MISC2 register and set bit VUSB_IN_VBAT */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
- twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+ twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
if (IS_ERR(twl->usb3v3))
return -ENODEV;
@@ -321,9 +314,9 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
{
struct twl6030_usb *twl;
int status, err;
- struct twl4030_usb_data *pdata;
- struct device *dev = &pdev->dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct twl4030_usb_data *pdata = dev->platform_data;
twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
@@ -332,13 +325,24 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
- twl->features = pdata->features;
twl->linkstat = OMAP_MUSB_UNKNOWN;
twl->comparator.set_vbus= twl6030_set_vbus;
twl->comparator.start_srp = twl6030_start_srp;
omap_usb2_set_comparator(&twl->comparator);
+ if (np) {
+ twl->regulator = "usb";
+ } else if (pdata) {
+ if (pdata->features & TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -400,12 +404,21 @@ static int __exit twl6030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl6030_usb_id_table[] = {
+ { .compatible = "ti,twl6030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl6030_usb_id_table);
+#endif
+
static struct platform_d
[PATCH v4 01/11] drivers: usb: otg: add a new driver for omap usb2 phy
All phy related programming like enabling/disabling the clocks, powering
on/off the phy is taken care of by this driver. It is also used for OTG
related functionality like srp.
This also includes device tree support for usb2 phy driver and
the documentation with device tree binding information is updated.
Currently writing to control module register is taken care in this
driver which will be removed once the control module driver is in place.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/bus/omap-ocp2scp.txt |3 +
Documentation/devicetree/bindings/usb/omap-usb.txt | 16 ++
drivers/usb/otg/Kconfig| 10 +
drivers/usb/otg/Makefile |1 +
drivers/usb/otg/omap-usb2.c| 271
include/linux/usb/omap_usb.h | 45
include/linux/usb/phy_companion.h | 34 +++
7 files changed, 380 insertions(+), 0 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
create mode 100644 drivers/usb/otg/omap-usb2.c
create mode 100644 include/linux/usb/omap_usb.h
create mode 100644 include/linux/usb/phy_companion.h
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
index d2fe064..bb0c7f4 100644
--- a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -8,3 +8,6 @@ properties:
Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp
+- usb2phy :
+ The binding details of usb2phy can be found in:
+ Documentation/devicetree/bindings/usb/omap-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644
index 000..80a28c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,16 @@
+OMAP USB PHY
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device. Also
+add the address of control module dev conf register until a driver for
+control module is added
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+};
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 5c87db0..c751db7 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -78,6 +78,16 @@ config TWL6030_USB
are hooked to this driver through platform_data structure.
The definition of internal PHY APIs are in the mach-omap2 layer.
+config OMAP_USB2
+ tristate "OMAP USB2 PHY Driver"
+ depends on OMAP_OCP2SCP
+ select USB_OTG_UTILS
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
select USB_OTG_UTILS
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 41aa509..2c2a3ca 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o
obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o
+obj-$(CONFIG_OMAP_USB2)+= omap-usb2.o
obj-$(CONFIG_NOP_USB_XCEIV)+= nop-usb-xceiv.o
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)+= ulpi_viewport.o
diff --git a/drivers/usb/otg/omap-usb2.c b/drivers/usb/otg/omap-usb2.c
new file mode 100644
index 000..2f9e257
--- /dev/null
+++ b/drivers/usb/otg/omap-usb2.c
@@ -0,0 +1,271 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ * this phy
+ * @comparato
[PATCH v4 03/11] drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.
Writing to control module which is now handled in omap2430.c should be
removed once a driver for control module is in place.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 52 ---
drivers/usb/musb/omap2430.h |9 +++
drivers/usb/otg/twl6030-usb.c | 114 +
3 files changed, 67 insertions(+), 108 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 5fdb9da..addbebf 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -44,6 +44,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ u32 __iomem *control_otghs;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -51,6 +52,26 @@ struct omap2430_glue *_glue;
static struct timer_list musb_idle_timer;
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+ if (glue->control_otghs)
+ writel(val, glue->control_otghs);
+}
+
static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
@@ -245,6 +266,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -260,7 +282,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +296,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
case OMAP_MUSB_ID_FLOAT:
@@ -291,7 +315,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +391,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +401,8 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +421,8 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
@@ -404,11 +432,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u3
[PATCH v4 08/11] arm/dts: Add twl4030-usb data
Add twl4030-usb data node in twl4030 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl4030.dtsi | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 22f4d13..761a5a5 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -37,6 +37,18 @@
regulator-max-microvolt = <315>;
};
+ vusb1v5: regulator-vusb1v5 {
+ compatible = "ti,twl4030-vusb1v5";
+ };
+
+ vusb1v8: regulator-vusb1v8 {
+ compatible = "ti,twl4030-vusb1v8";
+ };
+
+ vusb3v1: regulator-vusb3v1 {
+ compatible = "ti,twl4030-vusb3v1";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
@@ -44,4 +56,13 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+ };
};
--
1.7.5.4
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[PATCH v4 06/11] arm/dts: Add twl6030-usb data
Add twl6030-usb data node in twl6030 device tree file
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4-panda.dts |4
arch/arm/boot/dts/omap4-sdp.dts |4
arch/arm/boot/dts/twl6030.dtsi|6 ++
3 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 1efe0c5..7052422 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -89,3 +89,7 @@
ti,non-removable;
bus-width = <4>;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d08c4d1..6326d7c 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -158,3 +158,7 @@
bus-width = <4>;
ti,non-removable;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
index 3b2f351..5efd6d3 100644
--- a/arch/arm/boot/dts/twl6030.dtsi
+++ b/arch/arm/boot/dts/twl6030.dtsi
@@ -83,4 +83,10 @@
clk32kg: regulator@12 {
compatible = "ti,twl6030-clk32kg";
};
+
+ twlusb: twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ };
};
--
1.7.5.4
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[PATCH v4 02/11] arm/dts: omap: Add omap-usb2 dt data
Add omap-usb2 data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 29c6243..15f1890 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -279,6 +279,11 @@
#size-cells = <1>;
ranges;
ti,hwmods = "ocp2scp_usb_phy";
+ usb2phy@4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>,
+ <0x4a002300 0x1>;
+ };
};
};
};
--
1.7.5.4
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[PATCH v4 09/11] drivers: usb: musb: Add device tree support for omap musb glue
Added device tree support for omap musb driver and updated the
Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
Documentation/devicetree/bindings/usb/omap-usb.txt | 34 -
drivers/usb/musb/omap2430.c| 55
2 files changed, 88 insertions(+), 1 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 80a28c9..39cdffb 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -1,4 +1,4 @@
-OMAP USB PHY
+OMAP USB PHY AND GLUE
OMAP USB2 PHY
@@ -14,3 +14,35 @@ usb2phy@0x4a0ad080 {
compatible = "ti,omap-usb2";
reg = <0x4a0ad080 0x58>;
};
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,musb-omap2430"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+ multipoint. This is a MUSB configuration-specific setting.
+ - num_eps : Specifies the number of endpoints. This is also a
+ MUSB configuration-specific setting. Should be set to "16"
+ - ram_bits : Specifies the ram address size. Should be set to "12"
+ - interface_type : This is a board specific setting to describe the type of
+ interface between the controller and the phy. It should be "0" or "1"
+ specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+ represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply upto
+ 100mA when operating in host mode.
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+};
+
+Board specific device node entry
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index addbebf..331e477 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,6 +30,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -469,8 +470,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue*glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
struct resource *res;
int ret = -ENOMEM;
@@ -500,6 +504,43 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
if (glue->control_otghs == NULL)
dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoi
[PATCH v4 00/11] omap: musb: Add device tree support
This patch series adds device tree support for MUSB and device tree support for all the related modules to get MUSB working in OMAP platform. A new omap-usb2 phy driver has been added (with only dt suppport) to perform phy configurations. Previously this configuration was performed by twl6030, using pdata function pointers. With the addition of omap-usb2 to perform phy configurations, twl6030 is made as a comparator driver to detect VBUS and ID events and notify it to the glue layer. musb core is _NOT_ yet converted to support device tree support as it would need lot of driver re-design because of its enormous use of function pointers. That will be in _TO DO_ list. Changes from v3: remove the address in the node name of usb_otg_hs since the usb_otg_hs node doesn't have a reg property. Thanks Ajay Gupta for finding this. Changes from v2: Fixed Sergei's comment to remove *0x* prefix in usb2phy@0x4a0ad080 Changes from v1: * Fixed Rajendra Nayak comments (regulator naming, compatible naming of musb and other minor cleanups.) * It's agreed to have ocp2scp in drivers/bus and usb2 phy is a child of ocp2scp, the documentation is updated accordingly. Changes from RFC: Removed the dependency on [RFC PATCH 00/11] OMAP System Control Module. Writing to control module register is now handled in otg driver itself. Once the system control module driver get upstreamed, I'll send a patch to make use of API's in control module driver to write to control module register. This series was developed on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git xceiv This patch series depends on [PATCH 0/2] omap: add ocp2scp as a bus driver Performed MUSB device mode testing on OMAP4 panda, OMAP4 SDP and OMAP3 beagle. Kishon Vijay Abraham I (11): drivers: usb: otg: add a new driver for omap usb2 phy arm/dts: omap: Add omap-usb2 dt data drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2 arm: omap: hwmod: add a new addr space in otg for writing to control module drivers: usb: twl6030: Add dt support for twl6030 usb arm/dts: Add twl6030-usb data drivers: usb: twl4030: Add device tree support for twl4030 usb arm/dts: Add twl4030-usb data drivers: usb: musb: Add device tree support for omap musb glue arm/dts: omap: Add usb_otg and glue data arm: omap: phy: remove unused functions from omap-phy-internal.c .../devicetree/bindings/bus/omap-ocp2scp.txt |3 + Documentation/devicetree/bindings/usb/omap-usb.txt | 48 .../devicetree/bindings/usb/twl-usb.txt| 41 +++ arch/arm/boot/dts/omap3-beagle.dts |6 + arch/arm/boot/dts/omap3-evm.dts|6 + arch/arm/boot/dts/omap3.dtsi |8 + arch/arm/boot/dts/omap4-panda.dts | 10 + arch/arm/boot/dts/omap4-sdp.dts| 10 + arch/arm/boot/dts/omap4.dtsi | 13 + arch/arm/boot/dts/twl4030.dtsi | 21 ++ arch/arm/boot/dts/twl6030.dtsi |6 + arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 + arch/arm/mach-omap2/omap_phy_internal.c| 138 -- arch/arm/mach-omap2/twl-common.c |5 - arch/arm/mach-omap2/usb-musb.c |3 - drivers/usb/musb/omap2430.c| 107 +++- drivers/usb/musb/omap2430.h|9 + drivers/usb/otg/Kconfig| 10 + drivers/usb/otg/Makefile |1 + drivers/usb/otg/omap-usb2.c| 271 drivers/usb/otg/twl4030-usb.c | 26 ++- drivers/usb/otg/twl6030-usb.c | 153 +++ include/linux/usb/omap_usb.h | 45 include/linux/usb/phy_companion.h | 34 +++ 24 files changed, 706 insertions(+), 273 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt create mode 100644 drivers/usb/otg/omap-usb2.c create mode 100644 include/linux/usb/omap_usb.h create mode 100644 include/linux/usb/phy_companion.h -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v4 10/11] arm/dts: omap: Add usb_otg and glue data
Add usb otg data node in omap4/omap3 device tree file. Also update
the node with board specific setting in omapx-.dts file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap3-beagle.dts |6 ++
arch/arm/boot/dts/omap3-evm.dts|6 ++
arch/arm/boot/dts/omap3.dtsi |8
arch/arm/boot/dts/omap4-panda.dts |6 ++
arch/arm/boot/dts/omap4-sdp.dts|6 ++
arch/arm/boot/dts/omap4.dtsi |8
6 files changed, 40 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 5b4506c..f3d7076 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -67,3 +67,9 @@
&mmc3 {
status = "disable";
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 2eee16e..8963b3d 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -18,3 +18,9 @@
reg = <0x8000 0x1000>; /* 256 MB */
};
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 99474fa..f2694c9 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -215,5 +215,13 @@
compatible = "ti,omap3-hsmmc";
ti,hwmods = "mmc3";
};
+
+ usb_otg_hs: usb_otg_hs {
+ compatible = "ti,omap3-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 7052422..dd19370 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -93,3 +93,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 6326d7c..0fc10d4 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -162,3 +162,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 15f1890..3a6c3fa 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -285,5 +285,13 @@
<0x4a002300 0x1>;
};
};
+
+ usb_otg_hs: usb_otg_hs {
+ compatible = "ti,omap4-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
--
1.7.5.4
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[PATCH v4 07/11] drivers: usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl4030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 19 ++
drivers/usb/otg/twl4030-usb.c | 26 +++
2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
index e3f6d73..bdf1dd4 100644
--- a/Documentation/devicetree/bindings/usb/twl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -20,3 +20,22 @@ Board specific device node entry
&twl6030-usb {
usb-supply = <&vusb>;
};
+
+TWL4030 USB PHY AND COMPARATOR
+ - compatible : Should be "ti,twl4030-usb"
+ - interrupts : The interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts
+ and VBUS interrupts. The second interrupt number is optional.
+ - -supply : phandle to the regulator device tree node.
+should be vusb1v5, vusb1v8 and vusb3v1
+ - usb_mode : The mode used by the phy to connect to the controller. "1"
+ specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode.
+
+twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+};
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 523cad5..f0d2e75 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
struct twl4030_usb *twl;
int status, err;
struct usb_otg *otg;
-
- if (!pdata) {
- dev_dbg(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
- }
+ struct device_node *np = pdev->dev.of_node;
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
+ if (np)
+ of_property_read_u32(np, "usb_mode",
+ (enum twl4030_usb_mode *)&twl->usb_mode);
+ else if (pdata)
+ twl->usb_mode = pdata->usb_mode;
+ else {
+ dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg)
return -ENOMEM;
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
- twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+ { .compatible = "ti,twl4030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove),
.driver = {
.name = "twl4030_usb",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl4030_usb_id_table),
},
};
--
1.7.5.4
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[PATCH v4 11/11] arm: omap: phy: remove unused functions from omap-phy-internal.c
All the unnessary functions in omap-phy-internal is removed.
These functionality are now handled by omap-usb2 phy driver.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
Acked-by: Tony Lindgren
---
arch/arm/mach-omap2/omap_phy_internal.c | 138 ---
arch/arm/mach-omap2/twl-common.c|5 -
arch/arm/mach-omap2/usb-musb.c |3 -
3 files changed, 0 insertions(+), 146 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c
b/arch/arm/mach-omap2/omap_phy_internal.c
index d52651a..874aecc 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -31,144 +31,6 @@
#include
#include "control.h"
-/* OMAP control module register for UTMI PHY */
-#define CONTROL_DEV_CONF 0x300
-#define PHY_PD 0x1
-
-#define USBOTGHS_CONTROL 0x33c
-#defineAVALID BIT(0)
-#defineBVALID BIT(1)
-#defineVBUSVALID BIT(2)
-#defineSESSEND BIT(3)
-#defineIDDIG BIT(4)
-
-static struct clk *phyclk, *clk48m, *clk32k;
-static void __iomem *ctrl_base;
-static int usbotghs_control;
-
-int omap4430_phy_init(struct device *dev)
-{
- ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
- if (!ctrl_base) {
- pr_err("control module ioremap failed\n");
- return -ENOMEM;
- }
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- if (!dev) {
- iounmap(ctrl_base);
- return 0;
- }
-
- phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
- if (IS_ERR(phyclk)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
- iounmap(ctrl_base);
- return PTR_ERR(phyclk);
- }
-
- clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
- if (IS_ERR(clk48m)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
- clk_put(phyclk);
- iounmap(ctrl_base);
- return PTR_ERR(clk48m);
- }
-
- clk32k = clk_get(dev, "usb_phy_cm_clk32k");
- if (IS_ERR(clk32k)) {
- dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
- clk_put(phyclk);
- clk_put(clk48m);
- iounmap(ctrl_base);
- return PTR_ERR(clk32k);
- }
- return 0;
-}
-
-int omap4430_phy_set_clk(struct device *dev, int on)
-{
- static int state;
-
- if (on && !state) {
- /* Enable the phy clocks */
- clk_enable(phyclk);
- clk_enable(clk48m);
- clk_enable(clk32k);
- state = 1;
- } else if (state) {
- /* Disable the phy clocks */
- clk_disable(phyclk);
- clk_disable(clk48m);
- clk_disable(clk32k);
- state = 0;
- }
- return 0;
-}
-
-int omap4430_phy_power(struct device *dev, int ID, int on)
-{
- if (on) {
- if (ID)
- /* enable VBUS valid, IDDIG groung */
- __raw_writel(AVALID | VBUSVALID, ctrl_base +
- USBOTGHS_CONTROL);
- else
- /*
-* Enable VBUS Valid, AValid and IDDIG
-* high impedance
-*/
- __raw_writel(IDDIG | AVALID | VBUSVALID,
- ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable session END and IDIG to high impedance. */
- __raw_writel(SESSEND | IDDIG, ctrl_base +
- USBOTGHS_CONTROL);
- }
- return 0;
-}
-
-int omap4430_phy_suspend(struct device *dev, int suspend)
-{
- if (suspend) {
- /* Disable the clocks */
- omap4430_phy_set_clk(dev, 0);
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- /* save the context */
- usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable the internel phy clcoks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
-
- /* restore the context */
- __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
- }
-
- return 0;
-}
-
-int omap4430_phy_exit(
[PATCH v5 04/11] arm: omap: hwmod: add a new addr space in otg for writing to control module
The mailbox register for usb otg in omap is present in control module.
On detection of any events VBUS or ID, this register should be written
to send the notification to musb core.
Till we have a separate control module driver to write to control module,
omap2430 will handle the register writes to control module by itself. So
a new address space to represent this control module register is added
to usb_otg_hs.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index ba24d15..c50d828 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -5922,6 +5922,11 @@ static struct omap_hwmod_addr_space
omap44xx_usb_otg_hs_addrs[] = {
.pa_end = 0x4a0ab7ff,
.flags = ADDR_TYPE_RT
},
+ {
+ .pa_start = 0x4a00233c,
+ .pa_end = 0x4a00233f,
+ .flags = ADDR_TYPE_RT
+ },
{ }
};
--
1.7.9.5
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[PATCH v5 11/11] arm: omap: phy: remove unused functions from omap-phy-internal.c
All the unnessary functions in omap-phy-internal is removed.
These functionality are now handled by omap-usb2 phy driver.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
Acked-by: Tony Lindgren
---
arch/arm/mach-omap2/omap_phy_internal.c | 138 ---
arch/arm/mach-omap2/twl-common.c|5 --
arch/arm/mach-omap2/usb-musb.c |3 -
3 files changed, 146 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c
b/arch/arm/mach-omap2/omap_phy_internal.c
index d52651a..874aecc 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -31,144 +31,6 @@
#include
#include "control.h"
-/* OMAP control module register for UTMI PHY */
-#define CONTROL_DEV_CONF 0x300
-#define PHY_PD 0x1
-
-#define USBOTGHS_CONTROL 0x33c
-#defineAVALID BIT(0)
-#defineBVALID BIT(1)
-#defineVBUSVALID BIT(2)
-#defineSESSEND BIT(3)
-#defineIDDIG BIT(4)
-
-static struct clk *phyclk, *clk48m, *clk32k;
-static void __iomem *ctrl_base;
-static int usbotghs_control;
-
-int omap4430_phy_init(struct device *dev)
-{
- ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
- if (!ctrl_base) {
- pr_err("control module ioremap failed\n");
- return -ENOMEM;
- }
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- if (!dev) {
- iounmap(ctrl_base);
- return 0;
- }
-
- phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
- if (IS_ERR(phyclk)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
- iounmap(ctrl_base);
- return PTR_ERR(phyclk);
- }
-
- clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
- if (IS_ERR(clk48m)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
- clk_put(phyclk);
- iounmap(ctrl_base);
- return PTR_ERR(clk48m);
- }
-
- clk32k = clk_get(dev, "usb_phy_cm_clk32k");
- if (IS_ERR(clk32k)) {
- dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
- clk_put(phyclk);
- clk_put(clk48m);
- iounmap(ctrl_base);
- return PTR_ERR(clk32k);
- }
- return 0;
-}
-
-int omap4430_phy_set_clk(struct device *dev, int on)
-{
- static int state;
-
- if (on && !state) {
- /* Enable the phy clocks */
- clk_enable(phyclk);
- clk_enable(clk48m);
- clk_enable(clk32k);
- state = 1;
- } else if (state) {
- /* Disable the phy clocks */
- clk_disable(phyclk);
- clk_disable(clk48m);
- clk_disable(clk32k);
- state = 0;
- }
- return 0;
-}
-
-int omap4430_phy_power(struct device *dev, int ID, int on)
-{
- if (on) {
- if (ID)
- /* enable VBUS valid, IDDIG groung */
- __raw_writel(AVALID | VBUSVALID, ctrl_base +
- USBOTGHS_CONTROL);
- else
- /*
-* Enable VBUS Valid, AValid and IDDIG
-* high impedance
-*/
- __raw_writel(IDDIG | AVALID | VBUSVALID,
- ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable session END and IDIG to high impedance. */
- __raw_writel(SESSEND | IDDIG, ctrl_base +
- USBOTGHS_CONTROL);
- }
- return 0;
-}
-
-int omap4430_phy_suspend(struct device *dev, int suspend)
-{
- if (suspend) {
- /* Disable the clocks */
- omap4430_phy_set_clk(dev, 0);
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- /* save the context */
- usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable the internel phy clcoks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
-
- /* restore the context */
- __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
- }
-
- return 0;
-}
-
-int omap4430_phy_exit(struct d
[PATCH v5 06/11] arm/dts: Add twl6030-usb data
Add twl6030-usb data node in twl6030 device tree file
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4-panda.dts |4
arch/arm/boot/dts/omap4-sdp.dts |4
arch/arm/boot/dts/twl6030.dtsi|6 ++
3 files changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 1efe0c5..7052422 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -89,3 +89,7 @@
ti,non-removable;
bus-width = <4>;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d08c4d1..6326d7c 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -158,3 +158,7 @@
bus-width = <4>;
ti,non-removable;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
index 3b2f351..5efd6d3 100644
--- a/arch/arm/boot/dts/twl6030.dtsi
+++ b/arch/arm/boot/dts/twl6030.dtsi
@@ -83,4 +83,10 @@
clk32kg: regulator@12 {
compatible = "ti,twl6030-clk32kg";
};
+
+ twlusb: twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+ };
};
--
1.7.9.5
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[PATCH v5 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 22 +++
drivers/usb/otg/twl6030-usb.c | 39 +---
2 files changed, 48 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
new file mode 100644
index 000..e3f6d73
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -0,0 +1,22 @@
+USB COMPARATOR OF TWL CHIPS
+
+TWL6030 USB COMPARATOR
+ - compatible : Should be "ti,twl6030-usb"
+ - interrupts : Two interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts when
+ the controller has to act as host and the second interrupt number is the
+ usb interrupt number that raises VBUS interrupts when the controller has to
+ act as device
+ - usb-supply : phandle to the regulator device tree node. It should be vusb
+ if it is twl6030 or ldousb if it is twl6025 subclass.
+
+twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ regulator = "vusb";
+};
+
+Board specific device node entry
+&twl6030-usb {
+ usb-supply = <&vusb>;
+};
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 9994dd22..6b0d0a1 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -105,7 +105,7 @@ struct twl6030_usb {
u8 asleep;
boolirq_enabled;
boolvbus_enable;
- unsigned long features;
+ const char *regulator;
};
#definecomparator_to_twl(x) container_of((x), struct twl6030_usb,
comparator)
@@ -153,13 +153,6 @@ static int twl6030_start_srp(struct phy_companion
*comparator)
static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
{
- char *regulator_name;
-
- if (twl->features & TWL6025_SUBCLASS)
- regulator_name = "ldousb";
- else
- regulator_name = "vusb";
-
/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
@@ -169,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
/* Program MISC2 register and set bit VUSB_IN_VBAT */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
- twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+ twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
if (IS_ERR(twl->usb3v3))
return -ENODEV;
@@ -321,9 +314,9 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
{
struct twl6030_usb *twl;
int status, err;
- struct twl4030_usb_data *pdata;
- struct device *dev = &pdev->dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct twl4030_usb_data *pdata = dev->platform_data;
twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
@@ -332,13 +325,24 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
- twl->features = pdata->features;
twl->linkstat = OMAP_MUSB_UNKNOWN;
twl->comparator.set_vbus= twl6030_set_vbus;
twl->comparator.start_srp = twl6030_start_srp;
omap_usb2_set_comparator(&twl->comparator);
+ if (np) {
+ twl->regulator = "usb";
+ } else if (pdata) {
+ if (pdata->features & TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -400,12 +404,21 @@ static int __exit twl6030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl6030_usb_id_table[] = {
+ { .compatible = "ti,twl6030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl6030_usb_id_table);
+#endif
+
static struct platform_d
[PATCH v5 00/11] omap: musb: Add device tree support
This patch series adds device tree support for MUSB and device tree support for all the related modules to get MUSB working in OMAP platform. A new omap-usb2 phy driver has been added (with only dt suppport) to perform phy configurations. Previously this configuration was performed by twl6030, using pdata function pointers. With the addition of omap-usb2 to perform phy configurations, twl6030 is made as a comparator driver to detect VBUS and ID events and notify it to the glue layer. musb core is _NOT_ yet converted to support device tree support as it would need lot of driver re-design because of its enormous use of function pointers. That will be in _TO DO_ list. Changes from v4: duplicate getting of 'mode' property is removed in omap-musb glue. Changes from v3: remove the address in the node name of usb_otg_hs since the usb_otg_hs node doesn't have a reg property. Thanks Ajay Gupta for finding this. Changes from v2: Fixed Sergei's comment to remove *0x* prefix in usb2phy@0x4a0ad080 Changes from v1: * Fixed Rajendra Nayak comments (regulator naming, compatible naming of musb and other minor cleanups.) * It's agreed to have ocp2scp in drivers/bus and usb2 phy is a child of ocp2scp, the documentation is updated accordingly. Changes from RFC: Removed the dependency on [RFC PATCH 00/11] OMAP System Control Module. Writing to control module register is now handled in otg driver itself. Once the system control module driver get upstreamed, I'll send a patch to make use of API's in control module driver to write to control module register. This series was developed on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git xceiv This patch series depends on [PATCH 0/2] omap: add ocp2scp as a bus driver Performed MUSB device mode testing on OMAP4 panda, OMAP4 SDP and OMAP3 beagle. Kishon Vijay Abraham I (11): drivers: usb: otg: add a new driver for omap usb2 phy arm/dts: omap: Add omap-usb2 dt data drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2 arm: omap: hwmod: add a new addr space in otg for writing to control module drivers: usb: twl6030: Add dt support for twl6030 usb arm/dts: Add twl6030-usb data drivers: usb: twl4030: Add device tree support for twl4030 usb arm/dts: Add twl4030-usb data drivers: usb: musb: Add device tree support for omap musb glue arm/dts: omap: Add usb_otg and glue data arm: omap: phy: remove unused functions from omap-phy-internal.c .../devicetree/bindings/bus/omap-ocp2scp.txt |3 + Documentation/devicetree/bindings/usb/omap-usb.txt | 48 .../devicetree/bindings/usb/twl-usb.txt| 41 +++ arch/arm/boot/dts/omap3-beagle.dts |6 + arch/arm/boot/dts/omap3-evm.dts|6 + arch/arm/boot/dts/omap3.dtsi |8 + arch/arm/boot/dts/omap4-panda.dts | 10 + arch/arm/boot/dts/omap4-sdp.dts| 10 + arch/arm/boot/dts/omap4.dtsi | 13 + arch/arm/boot/dts/twl4030.dtsi | 21 ++ arch/arm/boot/dts/twl6030.dtsi |6 + arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 + arch/arm/mach-omap2/omap_phy_internal.c| 138 -- arch/arm/mach-omap2/twl-common.c |5 - arch/arm/mach-omap2/usb-musb.c |3 - drivers/usb/musb/omap2430.c| 106 +++- drivers/usb/musb/omap2430.h|9 + drivers/usb/otg/Kconfig| 10 + drivers/usb/otg/Makefile |1 + drivers/usb/otg/omap-usb2.c| 271 drivers/usb/otg/twl4030-usb.c | 26 +- drivers/usb/otg/twl6030-usb.c | 153 +++ include/linux/usb/omap_usb.h | 45 include/linux/usb/phy_companion.h | 34 +++ 24 files changed, 705 insertions(+), 273 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt create mode 100644 drivers/usb/otg/omap-usb2.c create mode 100644 include/linux/usb/omap_usb.h create mode 100644 include/linux/usb/phy_companion.h -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v5 03/11] drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.
Writing to control module which is now handled in omap2430.c should be
removed once a driver for control module is in place.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 52 ---
drivers/usb/musb/omap2430.h |9
drivers/usb/otg/twl6030-usb.c | 114 +
3 files changed, 67 insertions(+), 108 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 5fdb9da..addbebf 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -44,6 +44,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ u32 __iomem *control_otghs;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -51,6 +52,26 @@ struct omap2430_glue *_glue;
static struct timer_list musb_idle_timer;
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+ if (glue->control_otghs)
+ writel(val, glue->control_otghs);
+}
+
static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
@@ -245,6 +266,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -260,7 +282,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +296,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
case OMAP_MUSB_ID_FLOAT:
@@ -291,7 +315,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +391,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +401,8 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +421,8 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
@@ -404,11 +432,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u3
[PATCH v5 02/11] arm/dts: omap: Add omap-usb2 dt data
Add omap-usb2 data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 29c6243..15f1890 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -279,6 +279,11 @@
#size-cells = <1>;
ranges;
ti,hwmods = "ocp2scp_usb_phy";
+ usb2phy@4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>,
+ <0x4a002300 0x1>;
+ };
};
};
};
--
1.7.9.5
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[PATCH v5 09/11] drivers: usb: musb: Add device tree support for omap musb glue
Added device tree support for omap musb driver and updated the
Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
Documentation/devicetree/bindings/usb/omap-usb.txt | 34 +++-
drivers/usb/musb/omap2430.c| 54
2 files changed, 87 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 80a28c9..39cdffb 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -1,4 +1,4 @@
-OMAP USB PHY
+OMAP USB PHY AND GLUE
OMAP USB2 PHY
@@ -14,3 +14,35 @@ usb2phy@0x4a0ad080 {
compatible = "ti,omap-usb2";
reg = <0x4a0ad080 0x58>;
};
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,musb-omap2430"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+ multipoint. This is a MUSB configuration-specific setting.
+ - num_eps : Specifies the number of endpoints. This is also a
+ MUSB configuration-specific setting. Should be set to "16"
+ - ram_bits : Specifies the ram address size. Should be set to "12"
+ - interface_type : This is a board specific setting to describe the type of
+ interface between the controller and the phy. It should be "0" or "1"
+ specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+ represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply upto
+ 100mA when operating in host mode.
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+};
+
+Board specific device node entry
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index addbebf..5db228f 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,6 +30,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -469,8 +470,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue*glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
struct resource *res;
int ret = -ENOMEM;
@@ -500,6 +504,42 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
if (glue->control_otghs == NULL)
dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoint");
+
+ pdata->board_data = data;
+
[PATCH v5 10/11] arm/dts: omap: Add usb_otg and glue data
Add usb otg data node in omap4/omap3 device tree file. Also update
the node with board specific setting in omapx-.dts file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap3-beagle.dts |6 ++
arch/arm/boot/dts/omap3-evm.dts|6 ++
arch/arm/boot/dts/omap3.dtsi |8
arch/arm/boot/dts/omap4-panda.dts |6 ++
arch/arm/boot/dts/omap4-sdp.dts|6 ++
arch/arm/boot/dts/omap4.dtsi |8
6 files changed, 40 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 5b4506c..f3d7076 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -67,3 +67,9 @@
&mmc3 {
status = "disable";
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 2eee16e..8963b3d 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -18,3 +18,9 @@
reg = <0x8000 0x1000>; /* 256 MB */
};
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 99474fa..4b8c142 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -215,5 +215,13 @@
compatible = "ti,omap3-hsmmc";
ti,hwmods = "mmc3";
};
+
+ usb_otg_hs: usb_otg_hs {
+ compatible = "ti,omap3-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 7052422..dd19370 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -93,3 +93,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 6326d7c..0fc10d4 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -162,3 +162,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 15f1890..7886518 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -285,5 +285,13 @@
<0x4a002300 0x1>;
};
};
+
+ usb_otg_hs: usb_otg_hs {
+ compatible = "ti,omap4-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
--
1.7.9.5
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[PATCH v5 07/11] drivers: usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl4030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 19 ++
drivers/usb/otg/twl4030-usb.c | 26 +++-
2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
index e3f6d73..bdf1dd4 100644
--- a/Documentation/devicetree/bindings/usb/twl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -20,3 +20,22 @@ Board specific device node entry
&twl6030-usb {
usb-supply = <&vusb>;
};
+
+TWL4030 USB PHY AND COMPARATOR
+ - compatible : Should be "ti,twl4030-usb"
+ - interrupts : The interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts
+ and VBUS interrupts. The second interrupt number is optional.
+ - -supply : phandle to the regulator device tree node.
+should be vusb1v5, vusb1v8 and vusb3v1
+ - usb_mode : The mode used by the phy to connect to the controller. "1"
+ specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode.
+
+twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+};
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 523cad5..f0d2e75 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
struct twl4030_usb *twl;
int status, err;
struct usb_otg *otg;
-
- if (!pdata) {
- dev_dbg(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
- }
+ struct device_node *np = pdev->dev.of_node;
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
+ if (np)
+ of_property_read_u32(np, "usb_mode",
+ (enum twl4030_usb_mode *)&twl->usb_mode);
+ else if (pdata)
+ twl->usb_mode = pdata->usb_mode;
+ else {
+ dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg)
return -ENOMEM;
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
- twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+ { .compatible = "ti,twl4030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove),
.driver = {
.name = "twl4030_usb",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl4030_usb_id_table),
},
};
--
1.7.9.5
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[PATCH v5 01/11] drivers: usb: otg: add a new driver for omap usb2 phy
All phy related programming like enabling/disabling the clocks, powering
on/off the phy is taken care of by this driver. It is also used for OTG
related functionality like srp.
This also includes device tree support for usb2 phy driver and
the documentation with device tree binding information is updated.
Currently writing to control module register is taken care in this
driver which will be removed once the control module driver is in place.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/bus/omap-ocp2scp.txt |3 +
Documentation/devicetree/bindings/usb/omap-usb.txt | 16 ++
drivers/usb/otg/Kconfig| 10 +
drivers/usb/otg/Makefile |1 +
drivers/usb/otg/omap-usb2.c| 271
include/linux/usb/omap_usb.h | 45
include/linux/usb/phy_companion.h | 34 +++
7 files changed, 380 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
create mode 100644 drivers/usb/otg/omap-usb2.c
create mode 100644 include/linux/usb/omap_usb.h
create mode 100644 include/linux/usb/phy_companion.h
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
index d2fe064..bb0c7f4 100644
--- a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -8,3 +8,6 @@ properties:
Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp
+- usb2phy :
+ The binding details of usb2phy can be found in:
+ Documentation/devicetree/bindings/usb/omap-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644
index 000..80a28c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,16 @@
+OMAP USB PHY
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device. Also
+add the address of control module dev conf register until a driver for
+control module is added
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@0x4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>;
+};
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 5c87db0..c751db7 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -78,6 +78,16 @@ config TWL6030_USB
are hooked to this driver through platform_data structure.
The definition of internal PHY APIs are in the mach-omap2 layer.
+config OMAP_USB2
+ tristate "OMAP USB2 PHY Driver"
+ depends on OMAP_OCP2SCP
+ select USB_OTG_UTILS
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
select USB_OTG_UTILS
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 41aa509..2c2a3ca 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o
obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o
+obj-$(CONFIG_OMAP_USB2)+= omap-usb2.o
obj-$(CONFIG_NOP_USB_XCEIV)+= nop-usb-xceiv.o
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)+= ulpi_viewport.o
diff --git a/drivers/usb/otg/omap-usb2.c b/drivers/usb/otg/omap-usb2.c
new file mode 100644
index 000..2f9e257
--- /dev/null
+++ b/drivers/usb/otg/omap-usb2.c
@@ -0,0 +1,271 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ * this phy
+ * @comparator - the companio
[PATCH v5 08/11] arm/dts: Add twl4030-usb data
Add twl4030-usb data node in twl4030 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl4030.dtsi | 21 +
1 file changed, 21 insertions(+)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 22f4d13..761a5a5 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -37,6 +37,18 @@
regulator-max-microvolt = <315>;
};
+ vusb1v5: regulator-vusb1v5 {
+ compatible = "ti,twl4030-vusb1v5";
+ };
+
+ vusb1v8: regulator-vusb1v8 {
+ compatible = "ti,twl4030-vusb1v8";
+ };
+
+ vusb3v1: regulator-vusb3v1 {
+ compatible = "ti,twl4030-vusb3v1";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
@@ -44,4 +56,13 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+ };
};
--
1.7.9.5
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[PATCH v6 06/11] arm/dts: Add twl6030-usb data
Add twl6030-usb data node in twl6030 device tree file
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4-panda.dts |4
arch/arm/boot/dts/omap4-sdp.dts |4
arch/arm/boot/dts/twl6030.dtsi|5 +
3 files changed, 13 insertions(+)
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 1efe0c5..7052422 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -89,3 +89,7 @@
ti,non-removable;
bus-width = <4>;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index d08c4d1..6326d7c 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -158,3 +158,7 @@
bus-width = <4>;
ti,non-removable;
};
+
+&twlusb {
+ usb-supply = <&vusb>;
+};
diff --git a/arch/arm/boot/dts/twl6030.dtsi b/arch/arm/boot/dts/twl6030.dtsi
index 3b2f351..8e3aac9 100644
--- a/arch/arm/boot/dts/twl6030.dtsi
+++ b/arch/arm/boot/dts/twl6030.dtsi
@@ -83,4 +83,9 @@
clk32kg: regulator@12 {
compatible = "ti,twl6030-clk32kg";
};
+
+ twlusb: twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+ };
};
--
1.7.9.5
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[PATCH v6 04/11] arm: omap: hwmod: add a new addr space in otg for writing to control module
The mailbox register for usb otg in omap is present in control module.
On detection of any events VBUS or ID, this register should be written
to send the notification to musb core.
Till we have a separate control module driver to write to control module,
omap2430 will handle the register writes to control module by itself. So
a new address space to represent this control module register is added
to usb_otg_hs.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 249ff76..775e185 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -5934,6 +5934,11 @@ static struct omap_hwmod_addr_space
omap44xx_wd_timer2_addrs[] = {
.pa_end = 0x4a31407f,
.flags = ADDR_TYPE_RT
},
+ {
+ .pa_start = 0x4a00233c,
+ .pa_end = 0x4a00233f,
+ .flags = ADDR_TYPE_RT
+ },
{ }
};
--
1.7.9.5
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[PATCH v6 11/11] arm: omap: phy: remove unused functions from omap-phy-internal.c
All the unnessary functions in omap-phy-internal is removed.
These functionality are now handled by omap-usb2 phy driver.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
Acked-by: Tony Lindgren
---
arch/arm/mach-omap2/omap_phy_internal.c | 138 ---
arch/arm/mach-omap2/twl-common.c|5 --
arch/arm/mach-omap2/usb-musb.c |3 -
3 files changed, 146 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c
b/arch/arm/mach-omap2/omap_phy_internal.c
index 4c90477..0c610b4 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -31,144 +31,6 @@
#include
#include "control.h"
-/* OMAP control module register for UTMI PHY */
-#define CONTROL_DEV_CONF 0x300
-#define PHY_PD 0x1
-
-#define USBOTGHS_CONTROL 0x33c
-#defineAVALID BIT(0)
-#defineBVALID BIT(1)
-#defineVBUSVALID BIT(2)
-#defineSESSEND BIT(3)
-#defineIDDIG BIT(4)
-
-static struct clk *phyclk, *clk48m, *clk32k;
-static void __iomem *ctrl_base;
-static int usbotghs_control;
-
-int omap4430_phy_init(struct device *dev)
-{
- ctrl_base = ioremap(OMAP443X_SCM_BASE, SZ_1K);
- if (!ctrl_base) {
- pr_err("control module ioremap failed\n");
- return -ENOMEM;
- }
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- if (!dev) {
- iounmap(ctrl_base);
- return 0;
- }
-
- phyclk = clk_get(dev, "ocp2scp_usb_phy_ick");
- if (IS_ERR(phyclk)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_ick\n");
- iounmap(ctrl_base);
- return PTR_ERR(phyclk);
- }
-
- clk48m = clk_get(dev, "ocp2scp_usb_phy_phy_48m");
- if (IS_ERR(clk48m)) {
- dev_err(dev, "cannot clk_get ocp2scp_usb_phy_phy_48m\n");
- clk_put(phyclk);
- iounmap(ctrl_base);
- return PTR_ERR(clk48m);
- }
-
- clk32k = clk_get(dev, "usb_phy_cm_clk32k");
- if (IS_ERR(clk32k)) {
- dev_err(dev, "cannot clk_get usb_phy_cm_clk32k\n");
- clk_put(phyclk);
- clk_put(clk48m);
- iounmap(ctrl_base);
- return PTR_ERR(clk32k);
- }
- return 0;
-}
-
-int omap4430_phy_set_clk(struct device *dev, int on)
-{
- static int state;
-
- if (on && !state) {
- /* Enable the phy clocks */
- clk_enable(phyclk);
- clk_enable(clk48m);
- clk_enable(clk32k);
- state = 1;
- } else if (state) {
- /* Disable the phy clocks */
- clk_disable(phyclk);
- clk_disable(clk48m);
- clk_disable(clk32k);
- state = 0;
- }
- return 0;
-}
-
-int omap4430_phy_power(struct device *dev, int ID, int on)
-{
- if (on) {
- if (ID)
- /* enable VBUS valid, IDDIG groung */
- __raw_writel(AVALID | VBUSVALID, ctrl_base +
- USBOTGHS_CONTROL);
- else
- /*
-* Enable VBUS Valid, AValid and IDDIG
-* high impedance
-*/
- __raw_writel(IDDIG | AVALID | VBUSVALID,
- ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable session END and IDIG to high impedance. */
- __raw_writel(SESSEND | IDDIG, ctrl_base +
- USBOTGHS_CONTROL);
- }
- return 0;
-}
-
-int omap4430_phy_suspend(struct device *dev, int suspend)
-{
- if (suspend) {
- /* Disable the clocks */
- omap4430_phy_set_clk(dev, 0);
- /* Power down the phy */
- __raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-
- /* save the context */
- usbotghs_control = __raw_readl(ctrl_base + USBOTGHS_CONTROL);
- } else {
- /* Enable the internel phy clcoks */
- omap4430_phy_set_clk(dev, 1);
- /* power on the phy */
- if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
- __raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
- mdelay(200);
- }
-
- /* restore the context */
- __raw_writel(usbotghs_control, ctrl_base + USBOTGHS_CONTROL);
- }
-
- return 0;
-}
-
-int omap4430_phy_exit(struct d
[PATCH v6 00/11] omap: musb: Add device tree support
This patch series adds device tree support for MUSB and device tree support for all the related modules to get MUSB working in OMAP platform. A new omap-usb2 phy driver has been added (with only dt suppport) to perform phy configurations. Previously this configuration was performed by twl6030, using pdata function pointers. With the addition of omap-usb2 to perform phy configurations, twl6030 is made as a comparator driver to detect VBUS and ID events and notify it to the glue layer. musb core is _NOT_ yet converted to support device tree support as it would need lot of driver re-design because of its enormous use of function pointers. That will be in _TO DO_ list. Changes from v5: minor cleanups like checking for return value in get_sync and few changes in the documentation has been done. Changes from v4: duplicate getting of 'mode' property is removed in omap-musb glue. Changes from v3: remove the address in the node name of usb_otg_hs since the usb_otg_hs node doesn't have a reg property. Thanks Ajay Gupta for finding this. Changes from v2: Fixed Sergei's comment to remove *0x* prefix in usb2phy@0x4a0ad080 Changes from v1: * Fixed Rajendra Nayak comments (regulator naming, compatible naming of musb and other minor cleanups.) * It's agreed to have ocp2scp in drivers/bus and usb2 phy is a child of ocp2scp, the documentation is updated accordingly. Changes from RFC: Removed the dependency on [RFC PATCH 00/11] OMAP System Control Module. Writing to control module register is now handled in otg driver itself. Once the system control module driver get upstreamed, I'll send a patch to make use of API's in control module driver to write to control module register. This series was developed on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git xceiv This patch series depends on [PATCH 0/2] omap: add ocp2scp as a bus driver Performed MUSB device mode testing on OMAP4 panda, OMAP4 SDP and OMAP3 beagle. Kishon Vijay Abraham I (11): drivers: usb: otg: add a new driver for omap usb2 phy arm/dts: omap: Add omap-usb2 dt data drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2 arm: omap: hwmod: add a new addr space in otg for writing to control module drivers: usb: twl6030: Add dt support for twl6030 usb arm/dts: Add twl6030-usb data drivers: usb: twl4030: Add device tree support for twl4030 usb arm/dts: Add twl4030-usb data drivers: usb: musb: Add device tree support for omap musb glue arm/dts: omap: Add usb_otg and glue data arm: omap: phy: remove unused functions from omap-phy-internal.c .../devicetree/bindings/bus/omap-ocp2scp.txt |3 + Documentation/devicetree/bindings/usb/omap-usb.txt | 49 .../devicetree/bindings/usb/twl-usb.txt| 40 +++ arch/arm/boot/dts/omap3-beagle.dts |6 + arch/arm/boot/dts/omap3-evm.dts|6 + arch/arm/boot/dts/omap3.dtsi |8 + arch/arm/boot/dts/omap4-panda.dts | 10 + arch/arm/boot/dts/omap4-sdp.dts| 10 + arch/arm/boot/dts/omap4.dtsi | 13 + arch/arm/boot/dts/twl4030.dtsi | 21 ++ arch/arm/boot/dts/twl6030.dtsi |5 + arch/arm/mach-omap2/omap_hwmod_44xx_data.c |5 + arch/arm/mach-omap2/omap_phy_internal.c| 138 -- arch/arm/mach-omap2/twl-common.c |5 - arch/arm/mach-omap2/usb-musb.c |3 - drivers/usb/musb/omap2430.c| 106 +++- drivers/usb/musb/omap2430.h|9 + drivers/usb/otg/Kconfig| 10 + drivers/usb/otg/Makefile |1 + drivers/usb/otg/omap-usb2.c| 280 drivers/usb/otg/twl4030-usb.c | 26 +- drivers/usb/otg/twl6030-usb.c | 153 +++ include/linux/usb/omap_usb.h | 45 include/linux/usb/phy_companion.h | 34 +++ 24 files changed, 713 insertions(+), 273 deletions(-) create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt create mode 100644 drivers/usb/otg/omap-usb2.c create mode 100644 include/linux/usb/omap_usb.h create mode 100644 include/linux/usb/phy_companion.h -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v6 02/11] arm/dts: omap: Add omap-usb2 dt data
Add omap-usb2 data node in omap4 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |5 +
1 file changed, 5 insertions(+)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 29c6243..15f1890 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -279,6 +279,11 @@
#size-cells = <1>;
ranges;
ti,hwmods = "ocp2scp_usb_phy";
+ usb2phy@4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>,
+ <0x4a002300 0x1>;
+ };
};
};
};
--
1.7.9.5
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[PATCH v6 09/11] drivers: usb: musb: Add device tree support for omap musb glue
Added device tree support for omap musb driver and updated the
Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
Documentation/devicetree/bindings/usb/omap-usb.txt | 34 +++-
drivers/usb/musb/omap2430.c| 54
2 files changed, 87 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 52f503b..49a90fb 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -1,4 +1,4 @@
-OMAP USB PHY
+OMAP USB PHY AND GLUE
OMAP USB2 PHY
@@ -15,3 +15,35 @@ usb2phy@4a0ad080 {
reg = <0x4a0ad080 0x58>,
<0x4a002300 0x1>;
};
+
+OMAP MUSB GLUE
+ - compatible : Should be "ti,musb-omap2430"
+ - ti,hwmods : must be "usb_otg_hs"
+ - multipoint : Should be "1" indicating the musb controller supports
+ multipoint. This is a MUSB configuration-specific setting.
+ - num_eps : Specifies the number of endpoints. This is also a
+ MUSB configuration-specific setting. Should be set to "16"
+ - ram_bits : Specifies the ram address size. Should be set to "12"
+ - interface_type : This is a board specific setting to describe the type of
+ interface between the controller and the phy. It should be "0" or "1"
+ specifying ULPI and UTMI respectively.
+ - mode : Should be "3" to represent OTG. "1" signifies HOST and "2"
+ represents PERIPHERAL.
+ - power : Should be "50". This signifies the controller can supply upto
+ 100mA when operating in host mode.
+
+SOC specific device node entry
+usb_otg_hs: usb_otg_hs@4a0ab000 {
+ compatible = "ti,musb-omap2430";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+};
+
+Board specific device node entry
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index addbebf..5db228f 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -30,6 +30,7 @@
#include
#include
#include
+#include
#include
#include
#include
@@ -469,8 +470,11 @@ static u64 omap2430_dmamask = DMA_BIT_MASK(32);
static int __devinit omap2430_probe(struct platform_device *pdev)
{
struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct omap_musb_board_data *data;
struct platform_device *musb;
struct omap2430_glue*glue;
+ struct device_node *np = pdev->dev.of_node;
+ struct musb_hdrc_config *config;
struct resource *res;
int ret = -ENOMEM;
@@ -500,6 +504,42 @@ static int __devinit omap2430_probe(struct platform_device
*pdev)
if (glue->control_otghs == NULL)
dev_dbg(&pdev->dev, "Failed to obtain control memory\n");
+ if (np) {
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb platfrom data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb board data\n");
+ ret = -ENOMEM;
+ goto err1;
+ }
+
+ config = devm_kzalloc(&pdev->dev, sizeof(*config), GFP_KERNEL);
+ if (!data) {
+ dev_err(&pdev->dev,
+ "failed to allocate musb hdrc config\n");
+ goto err1;
+ }
+
+ of_property_read_u32(np, "mode", (u32 *)&pdata->mode);
+ of_property_read_u32(np, "interface_type",
+ (u32 *)&data->interface_type);
+ of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps);
+ of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits);
+ of_property_read_u32(np, "power", (u32 *)&pdata->power);
+ config->multipoint = of_property_read_bool(np, "multipoint");
+
+ pdata->board_data = data;
+ pdata->config = config;
+ }
+
[PATCH v6 01/11] drivers: usb: otg: add a new driver for omap usb2 phy
All phy related programming like enabling/disabling the clocks, powering
on/off the phy is taken care of by this driver. It is also used for OTG
related functionality like srp.
This also includes device tree support for usb2 phy driver and
the documentation with device tree binding information is updated.
Currently writing to control module register is taken care in this
driver which will be removed once the control module driver is in place.
Cc: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/bus/omap-ocp2scp.txt |3 +
Documentation/devicetree/bindings/usb/omap-usb.txt | 17 ++
drivers/usb/otg/Kconfig| 10 +
drivers/usb/otg/Makefile |1 +
drivers/usb/otg/omap-usb2.c| 280
include/linux/usb/omap_usb.h | 45
include/linux/usb/phy_companion.h | 34 +++
7 files changed, 390 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/omap-usb.txt
create mode 100644 drivers/usb/otg/omap-usb2.c
create mode 100644 include/linux/usb/omap_usb.h
create mode 100644 include/linux/usb/phy_companion.h
diff --git a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
index d2fe064..bb0c7f4 100644
--- a/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
+++ b/Documentation/devicetree/bindings/bus/omap-ocp2scp.txt
@@ -8,3 +8,6 @@ properties:
Sub-nodes:
All the devices connected to ocp2scp are described using sub-node to ocp2scp
+- usb2phy :
+ The binding details of usb2phy can be found in:
+ Documentation/devicetree/bindings/usb/omap-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt
b/Documentation/devicetree/bindings/usb/omap-usb.txt
new file mode 100644
index 000..52f503b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -0,0 +1,17 @@
+OMAP USB PHY
+
+OMAP USB2 PHY
+
+Required properties:
+ - compatible: Should be "ti,omap-usb2"
+ - reg : Address and length of the register set for the device. Also
+add the address of control module dev conf register until a driver for
+control module is added
+
+This is usually a subnode of ocp2scp to which it is connected.
+
+usb2phy@4a0ad080 {
+ compatible = "ti,omap-usb2";
+ reg = <0x4a0ad080 0x58>,
+ <0x4a002300 0x1>;
+};
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index 5c87db0..c751db7 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -78,6 +78,16 @@ config TWL6030_USB
are hooked to this driver through platform_data structure.
The definition of internal PHY APIs are in the mach-omap2 layer.
+config OMAP_USB2
+ tristate "OMAP USB2 PHY Driver"
+ depends on OMAP_OCP2SCP
+ select USB_OTG_UTILS
+ help
+ Enable this to support the transceiver that is part of SOC. This
+ driver takes care of all the PHY functionality apart from comparator.
+ The USB OTG controller communicates with the comparator using this
+ driver.
+
config NOP_USB_XCEIV
tristate "NOP USB Transceiver Driver"
select USB_OTG_UTILS
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 41aa509..2c2a3ca 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o
obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o
obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o
obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o
+obj-$(CONFIG_OMAP_USB2)+= omap-usb2.o
obj-$(CONFIG_NOP_USB_XCEIV)+= nop-usb-xceiv.o
obj-$(CONFIG_USB_ULPI) += ulpi.o
obj-$(CONFIG_USB_ULPI_VIEWPORT)+= ulpi_viewport.o
diff --git a/drivers/usb/otg/omap-usb2.c b/drivers/usb/otg/omap-usb2.c
new file mode 100644
index 000..026cb3c
--- /dev/null
+++ b/drivers/usb/otg/omap-usb2.c
@@ -0,0 +1,280 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ * thi
[PATCH v6 10/11] arm/dts: omap: Add usb_otg and glue data
Add usb otg data node in omap4/omap3 device tree file. Also update
the node with board specific setting in omapx-.dts file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap3-beagle.dts |6 ++
arch/arm/boot/dts/omap3-evm.dts|6 ++
arch/arm/boot/dts/omap3.dtsi |8
arch/arm/boot/dts/omap4-panda.dts |6 ++
arch/arm/boot/dts/omap4-sdp.dts|6 ++
arch/arm/boot/dts/omap4.dtsi |8
6 files changed, 40 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-beagle.dts
b/arch/arm/boot/dts/omap3-beagle.dts
index 5b4506c..f3d7076 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -67,3 +67,9 @@
&mmc3 {
status = "disable";
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 2eee16e..8963b3d 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -18,3 +18,9 @@
reg = <0x8000 0x1000>; /* 256 MB */
};
};
+
+&usb_otg_hs {
+ interface_type = <0>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 99474fa..4b8c142 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -215,5 +215,13 @@
compatible = "ti,omap3-hsmmc";
ti,hwmods = "mmc3";
};
+
+ usb_otg_hs: usb_otg_hs {
+ compatible = "ti,omap3-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
diff --git a/arch/arm/boot/dts/omap4-panda.dts
b/arch/arm/boot/dts/omap4-panda.dts
index 7052422..dd19370 100644
--- a/arch/arm/boot/dts/omap4-panda.dts
+++ b/arch/arm/boot/dts/omap4-panda.dts
@@ -93,3 +93,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 6326d7c..0fc10d4 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -162,3 +162,9 @@
&twlusb {
usb-supply = <&vusb>;
};
+
+&usb_otg_hs {
+ interface_type = <1>;
+ mode = <3>;
+ power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 15f1890..7886518 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -285,5 +285,13 @@
<0x4a002300 0x1>;
};
};
+
+ usb_otg_hs: usb_otg_hs {
+ compatible = "ti,omap4-musb";
+ ti,hwmods = "usb_otg_hs";
+ multipoint = <1>;
+ num_eps = <16>;
+ ram_bits = <12>;
+ };
};
};
--
1.7.9.5
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[PATCH v6 07/11] drivers: usb: twl4030: Add device tree support for twl4030 usb
Add device tree support for twl4030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 19 ++
drivers/usb/otg/twl4030-usb.c | 26 +++-
2 files changed, 39 insertions(+), 6 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
index 930f9ff..36b9aed 100644
--- a/Documentation/devicetree/bindings/usb/twl-usb.txt
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -19,3 +19,22 @@ Board specific device node entry
&twl6030-usb {
usb-supply = <&vusb>;
};
+
+TWL4030 USB PHY AND COMPARATOR
+ - compatible : Should be "ti,twl4030-usb"
+ - interrupts : The interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts
+ and VBUS interrupts. The second interrupt number is optional.
+ - -supply : phandle to the regulator device tree node.
+should be vusb1v5, vusb1v8 and vusb3v1
+ - usb_mode : The mode used by the phy to connect to the controller. "1"
+ specifies "ULPI" mode and "2" specifies "CEA2011_3PIN" mode.
+
+twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+};
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 523cad5..f0d2e75 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -585,23 +585,28 @@ static int __devinit twl4030_usb_probe(struct
platform_device *pdev)
struct twl4030_usb *twl;
int status, err;
struct usb_otg *otg;
-
- if (!pdata) {
- dev_dbg(&pdev->dev, "platform_data not available\n");
- return -EINVAL;
- }
+ struct device_node *np = pdev->dev.of_node;
twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
if (!twl)
return -ENOMEM;
+ if (np)
+ of_property_read_u32(np, "usb_mode",
+ (enum twl4030_usb_mode *)&twl->usb_mode);
+ else if (pdata)
+ twl->usb_mode = pdata->usb_mode;
+ else {
+ dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
if (!otg)
return -ENOMEM;
twl->dev= &pdev->dev;
twl->irq= platform_get_irq(pdev, 0);
- twl->usb_mode = pdata->usb_mode;
twl->vbus_supplied = false;
twl->asleep = 1;
twl->linkstat = OMAP_MUSB_UNKNOWN;
@@ -690,12 +695,21 @@ static int __exit twl4030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+ { .compatible = "ti,twl4030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
static struct platform_driver twl4030_usb_driver = {
.probe = twl4030_usb_probe,
.remove = __exit_p(twl4030_usb_remove),
.driver = {
.name = "twl4030_usb",
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(twl4030_usb_id_table),
},
};
--
1.7.9.5
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[PATCH v6 08/11] arm/dts: Add twl4030-usb data
Add twl4030-usb data node in twl4030 device tree file.
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/twl4030.dtsi | 21 +
1 file changed, 21 insertions(+)
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index 22f4d13..761a5a5 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -37,6 +37,18 @@
regulator-max-microvolt = <315>;
};
+ vusb1v5: regulator-vusb1v5 {
+ compatible = "ti,twl4030-vusb1v5";
+ };
+
+ vusb1v8: regulator-vusb1v8 {
+ compatible = "ti,twl4030-vusb1v8";
+ };
+
+ vusb3v1: regulator-vusb3v1 {
+ compatible = "ti,twl4030-vusb3v1";
+ };
+
twl_gpio: gpio {
compatible = "ti,twl4030-gpio";
gpio-controller;
@@ -44,4 +56,13 @@
interrupt-controller;
#interrupt-cells = <1>;
};
+
+ twl4030-usb {
+ compatible = "ti,twl4030-usb";
+ interrupts = < 10 4 >;
+ usb1v5-supply = <&vusb1v5>;
+ usb1v8-supply = <&vusb1v8>;
+ usb3v1-supply = <&vusb3v1>;
+ usb_mode = <1>;
+ };
};
--
1.7.9.5
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[PATCH v6 03/11] drivers: usb: otg: make twl6030_usb as a comparator driver to omap_usb2
All the PHY configuration other than VBUS, ID GND and OTG SRP are removed
from twl6030. The phy configurations are taken care by the dedicated
usb2 phy driver. So twl6030 is made as comparator driver for VBUS and
ID detection.
Writing to control module which is now handled in omap2430.c should be
removed once a driver for control module is in place.
Signed-off-by: Kishon Vijay Abraham I
---
drivers/usb/musb/omap2430.c | 52 ---
drivers/usb/musb/omap2430.h |9
drivers/usb/otg/twl6030-usb.c | 114 +
3 files changed, 67 insertions(+), 108 deletions(-)
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 5fdb9da..addbebf 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -44,6 +44,7 @@ struct omap2430_glue {
struct platform_device *musb;
enum omap_musb_vbus_id_status status;
struct work_struct omap_musb_mailbox_work;
+ u32 __iomem *control_otghs;
};
#define glue_to_musb(g)platform_get_drvdata(g->musb)
@@ -51,6 +52,26 @@ struct omap2430_glue *_glue;
static struct timer_list musb_idle_timer;
+/**
+ * omap4_usb_phy_mailbox - write to usb otg mailbox
+ * @glue: struct omap2430_glue *
+ * @val: the value to be written to the mailbox
+ *
+ * On detection of a device (ID pin is grounded), this API should be called
+ * to set AVALID, VBUSVALID and ID pin is grounded.
+ *
+ * When OMAP is connected to a host (OMAP in device mode), this API
+ * is called to set AVALID, VBUSVALID and ID pin in high impedance.
+ *
+ * XXX: This function will be removed once we have a seperate driver for
+ * control module
+ */
+static void omap4_usb_phy_mailbox(struct omap2430_glue *glue, u32 val)
+{
+ if (glue->control_otghs)
+ writel(val, glue->control_otghs);
+}
+
static void musb_do_idle(unsigned long _musb)
{
struct musb *musb = (void *)_musb;
@@ -245,6 +266,7 @@ EXPORT_SYMBOL_GPL(omap_musb_mailbox);
static void omap_musb_set_mailbox(struct omap2430_glue *glue)
{
+ u32 val;
struct musb *musb = glue_to_musb(glue);
struct device *dev = musb->controller;
struct musb_hdrc_platform_data *pdata = dev->platform_data;
@@ -260,7 +282,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_ID;
if (!is_otg_enabled(musb) || musb->gadget_driver) {
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
omap2430_musb_set_vbus(musb, 1);
}
break;
@@ -273,7 +296,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
case OMAP_MUSB_ID_FLOAT:
@@ -291,7 +315,8 @@ static void omap_musb_set_mailbox(struct omap2430_glue
*glue)
if (musb->xceiv->otg->set_vbus)
otg_set_vbus(musb->xceiv->otg, 0);
}
- usb_phy_shutdown(musb->xceiv);
+ val = SESSEND | IDDIG;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
dev_dbg(dev, "ID float\n");
@@ -366,6 +391,7 @@ err1:
static void omap2430_musb_enable(struct musb *musb)
{
u8 devctl;
+ u32 val;
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
struct device *dev = musb->controller;
struct omap2430_glue *glue = dev_get_drvdata(dev->parent);
@@ -375,7 +401,8 @@ static void omap2430_musb_enable(struct musb *musb)
switch (glue->status) {
case OMAP_MUSB_ID_GROUND:
- usb_phy_init(musb->xceiv);
+ val = AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
if (data->interface_type != MUSB_INTERFACE_UTMI)
break;
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
@@ -394,7 +421,8 @@ static void omap2430_musb_enable(struct musb *musb)
break;
case OMAP_MUSB_VBUS_VALID:
- usb_phy_init(musb->xceiv);
+ val = IDDIG | AVALID | VBUSVALID;
+ omap4_usb_phy_mailbox(glue, val);
break;
default:
@@ -404,11 +432,14 @@ static void omap2430_musb_enable(struct musb *musb)
static void omap2430_musb_disable(struct musb *musb)
{
+ u3
[PATCH v6 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham I
---
.../devicetree/bindings/usb/twl-usb.txt| 21 +++
drivers/usb/otg/twl6030-usb.c | 39 +---
2 files changed, 47 insertions(+), 13 deletions(-)
create mode 100644 Documentation/devicetree/bindings/usb/twl-usb.txt
diff --git a/Documentation/devicetree/bindings/usb/twl-usb.txt
b/Documentation/devicetree/bindings/usb/twl-usb.txt
new file mode 100644
index 000..930f9ff
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/twl-usb.txt
@@ -0,0 +1,21 @@
+USB COMPARATOR OF TWL CHIPS
+
+TWL6030 USB COMPARATOR
+ - compatible : Should be "ti,twl6030-usb"
+ - interrupts : Two interrupt numbers to the cpu should be specified. First
+ interrupt number is the otg interrupt number that raises ID interrupts when
+ the controller has to act as host and the second interrupt number is the
+ usb interrupt number that raises VBUS interrupts when the controller has to
+ act as device
+ - usb-supply : phandle to the regulator device tree node. It should be vusb
+ if it is twl6030 or ldousb if it is twl6025 subclass.
+
+twl6030-usb {
+ compatible = "ti,twl6030-usb";
+ interrupts = < 4 10 >;
+};
+
+Board specific device node entry
+&twl6030-usb {
+ usb-supply = <&vusb>;
+};
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c
index 6a361d2..f29c9ef 100644
--- a/drivers/usb/otg/twl6030-usb.c
+++ b/drivers/usb/otg/twl6030-usb.c
@@ -105,7 +105,7 @@ struct twl6030_usb {
u8 asleep;
boolirq_enabled;
boolvbus_enable;
- unsigned long features;
+ const char *regulator;
};
#definecomparator_to_twl(x) container_of((x), struct twl6030_usb,
comparator)
@@ -153,13 +153,6 @@ static int twl6030_start_srp(struct phy_companion
*comparator)
static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
{
- char *regulator_name;
-
- if (twl->features & TWL6025_SUBCLASS)
- regulator_name = "ldousb";
- else
- regulator_name = "vusb";
-
/* Set to OTG_REV 1.3 and turn on the ID_WAKEUP_COMP */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x1, TWL6030_BACKUP_REG);
@@ -169,7 +162,7 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
/* Program MISC2 register and set bit VUSB_IN_VBAT */
twl6030_writeb(twl, TWL6030_MODULE_ID0 , 0x10, TWL6030_MISC2);
- twl->usb3v3 = regulator_get(twl->dev, regulator_name);
+ twl->usb3v3 = regulator_get(twl->dev, twl->regulator);
if (IS_ERR(twl->usb3v3))
return -ENODEV;
@@ -324,9 +317,9 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
{
struct twl6030_usb *twl;
int status, err;
- struct twl4030_usb_data *pdata;
- struct device *dev = &pdev->dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev = &pdev->dev;
+ struct twl4030_usb_data *pdata = dev->platform_data;
twl = devm_kzalloc(dev, sizeof *twl, GFP_KERNEL);
if (!twl)
@@ -335,13 +328,24 @@ static int __devinit twl6030_usb_probe(struct
platform_device *pdev)
twl->dev= &pdev->dev;
twl->irq1 = platform_get_irq(pdev, 0);
twl->irq2 = platform_get_irq(pdev, 1);
- twl->features = pdata->features;
twl->linkstat = OMAP_MUSB_UNKNOWN;
twl->comparator.set_vbus= twl6030_set_vbus;
twl->comparator.start_srp = twl6030_start_srp;
omap_usb2_set_comparator(&twl->comparator);
+ if (np) {
+ twl->regulator = "usb";
+ } else if (pdata) {
+ if (pdata->features & TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(&pdev->dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(&twl->lock);
@@ -403,12 +407,21 @@ static int __exit twl6030_usb_remove(struct
platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id twl6030_usb_id_table[] = {
+ { .compatible = "ti,twl6030-usb" },
+ {}
+};
+MODULE_DEVICE_TABLE(of, twl6030_usb_id_table);
+#endif
+
static struct platform_driver twl6
[PATCH] drivers: usb: musb: cleanup while removing musb omap glue driver
No functional change. Just replaced the call to platform_device_del and platform_device_put with platform_device_unregister. Signed-off-by: Kishon Vijay Abraham I --- drivers/usb/musb/omap2430.c |3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 5fdb9da..392fc7a 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -509,8 +509,7 @@ static int __devexit omap2430_remove(struct platform_device *pdev) struct omap2430_glue*glue = platform_get_drvdata(pdev); cancel_work_sync(&glue->omap_musb_mailbox_work); - platform_device_del(glue->musb); - platform_device_put(glue->musb); + platform_device_unregister(glue->musb); return 0; } -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v3 2/2] arm/dts: omap4: Add ocp2scp data
Add ocp2scp data node in omap4 device tree file.
Acked-by: Felipe Balbi
Signed-off-by: Kishon Vijay Abraham I
---
arch/arm/boot/dts/omap4.dtsi |8
1 file changed, 8 insertions(+)
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 04cbbcb..8a780b2 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -295,5 +295,13 @@
interrupt-parent = <&gic>;
ti,hwmods = "dmic";
};
+
+ ocp2scp {
+ compatible = "ti,omap-ocp2scp";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+ ti,hwmods = "ocp2scp_usb_phy";
+ };
};
};
--
1.7.9.5
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[PATCH v3 0/2] omap: add ocp2scp as a bus driver
This patch series is done as a preparatory step for adding phy drivers for dwc3 and musb. This series adds a new driver for ocp2scp (only dt) to which phy drivers are connected. Since currently there is no generic way to create a child device along with doing a pm_runtime_enable (the exact requirement for ocp2scp), I'm creating a separate driver for ocp2scp. Changes from v2: Fixed Felipe's comments to avoid using arch_initcall and make dependent drivers return -EPROBE_DEFER case this isn't ready yet. Changes from v1: Fixed Sergei's comments to remove the address in the node name of ocp2scp since the ocp2scp node doesn't have a reg property. Changes from [RFC PATCH v2 0/2] omap: add ocp2scp as a misc driver: Created a new folder drivers/bus and moved ocp2scp driver from misc to drivers/bus. This patch was developed and tested on git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git Kishon Vijay Abraham I (2): drivers: bus: add a new driver for omap-ocp2scp arm/dts: omap4: Add ocp2scp data .../devicetree/bindings/bus/omap-ocp2scp.txt | 10 +++ arch/arm/boot/dts/omap4.dtsi |8 ++ drivers/Kconfig|2 + drivers/Makefile |2 + drivers/bus/Kconfig| 15 drivers/bus/Makefile |5 ++ drivers/bus/omap-ocp2scp.c | 88 7 files changed, 130 insertions(+) create mode 100644 Documentation/devicetree/bindings/bus/omap-ocp2scp.txt create mode 100644 drivers/bus/Kconfig create mode 100644 drivers/bus/Makefile create mode 100644 drivers/bus/omap-ocp2scp.c -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
