Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Hi,
On Tue, Jul 10, 2012 at 12:14 PM, Rajendra Nayak wrote:
> On Tuesday 10 July 2012 11:58 AM, ABRAHAM, KISHON VIJAY wrote:
>>
>> Hi,
>>
>> On Tue, Jul 10, 2012 at 11:28 AM, Rajendra Nayak wrote:
>>>
>>> On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
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 =<>;
>>>
>>>
>>>
>>> This doesn't seem right. Why do you ned a 'regulator' string along
>>> with the phandle?
>>
>>
>> The original code was something like
>> if (twl->features& TWL6025_SUBCLASS)
>>
>> regulator_name = "ldousb";
>> else
>> regulator_name = "vusb";
>>
>> I wasn't sure how to handle this *TWL6025_SUBCLASS* stuff.
>>
>>>
+};
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;
};
#define comparator_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 =>dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev =>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=>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 =
Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
On Tuesday 10 July 2012 11:58 AM, ABRAHAM, KISHON VIJAY wrote:
Hi,
On Tue, Jul 10, 2012 at 11:28 AM, Rajendra Nayak wrote:
On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
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 =<>;
This doesn't seem right. Why do you ned a 'regulator' string along
with the phandle?
The original code was something like
if (twl->features& TWL6025_SUBCLASS)
regulator_name = "ldousb";
else
regulator_name = "vusb";
I wasn't sure how to handle this *TWL6025_SUBCLASS* stuff.
+};
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;
};
#define comparator_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 =>dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev =>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=>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(>comparator);
+ if (np) {
+ err = of_property_read_string(np,
"regulator",>regulator);
+ if (err< 0) {
+ dev_err(>dev, "unable to get regulator\n");
+ return err;
+ }
Isn't there a better way for the driver to know which supply to use instead
of DT passing the supply name?
The problem I see is this same driver is used for twl6030 and twl6025
and the regulator used is different for these two chips (And I think
hmm, so based on what chip is used on a board, shouldn't the board dts
file just map the right regulator with a supply
Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Hi,
On Tue, Jul 10, 2012 at 11:28 AM, Rajendra Nayak wrote:
> On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
>>
>> 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 =<>;
>
>
> This doesn't seem right. Why do you ned a 'regulator' string along
> with the phandle?
The original code was something like
if (twl->features & TWL6025_SUBCLASS)
regulator_name = "ldousb";
else
regulator_name = "vusb";
I wasn't sure how to handle this *TWL6025_SUBCLASS* stuff.
>
>> +};
>> 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;
>> };
>>
>> #define comparator_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 =>dev;
>>
>> - pdata = dev->platform_data;
>> + struct device_node *np = pdev->dev.of_node;
>> + struct device *dev =>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=>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(>comparator);
>>
>> + if (np) {
>> + err = of_property_read_string(np,
>> "regulator",>regulator);
>>
>> + if (err< 0) {
>> + dev_err(>dev, "unable to get regulator\n");
>> + return err;
>> + }
>
>
> Isn't there a better way for the driver to know which supply to use instead
> of DT passing the supply name?
The problem I see
Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Hi,
On Tue, Jul 10, 2012 at 11:28 AM, Rajendra Nayak rna...@ti.com wrote:
On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham Ikis...@ti.com
---
.../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 :supply-name can be vusb or ldousb
+ -supply-name-supply : phandle to the regulator device tree node
+
+twl6030-usb {
+ compatible = ti,twl6030-usb;
+ interrupts = 4 10;
+ regulator = vusb;
+ vusb-supply =vusb;
This doesn't seem right. Why do you ned a 'regulator' string along
with the phandle?
The original code was something like
if (twl-features TWL6025_SUBCLASS)
regulator_name = ldousb;
else
regulator_name = vusb;
I wasn't sure how to handle this *TWL6025_SUBCLASS* stuff.
+};
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;
};
#define comparator_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;
+ }
Isn't there a better way for the driver to know which supply to use instead
of DT passing the supply name?
The problem I see is this same driver is used for twl6030 and twl6025
and the regulator used is different for these two chips (And I think
twl6025 will also use the same dt file as twl6030 as I don't see a
different file for 6025).
Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
On Tuesday 10 July 2012 11:58 AM, ABRAHAM, KISHON VIJAY wrote:
Hi,
On Tue, Jul 10, 2012 at 11:28 AM, Rajendra Nayakrna...@ti.com wrote:
On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham Ikis...@ti.com
---
.../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 :supply-name can be vusb or ldousb
+ -supply-name-supply : phandle to the regulator device tree node
+
+twl6030-usb {
+ compatible = ti,twl6030-usb;
+ interrupts = 4 10;
+ regulator = vusb;
+ vusb-supply =vusb;
This doesn't seem right. Why do you ned a 'regulator' string along
with the phandle?
The original code was something like
if (twl-features TWL6025_SUBCLASS)
regulator_name = ldousb;
else
regulator_name = vusb;
I wasn't sure how to handle this *TWL6025_SUBCLASS* stuff.
+};
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;
};
#define comparator_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;
+ }
Isn't there a better way for the driver to know which supply to use instead
of DT passing the supply name?
The problem I see is this same driver is used for twl6030 and twl6025
and the regulator used is different for these two chips (And I think
hmm, so based on what chip is used on a board, shouldn't the board dts
file just map the right
Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
Hi,
On Tue, Jul 10, 2012 at 12:14 PM, Rajendra Nayak rna...@ti.com wrote:
On Tuesday 10 July 2012 11:58 AM, ABRAHAM, KISHON VIJAY wrote:
Hi,
On Tue, Jul 10, 2012 at 11:28 AM, Rajendra Nayakrna...@ti.com wrote:
On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham Ikis...@ti.com
---
.../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 :supply-name can be vusb or ldousb
+ -supply-name-supply : phandle to the regulator device tree node
+
+twl6030-usb {
+ compatible = ti,twl6030-usb;
+ interrupts = 4 10;
+ regulator = vusb;
+ vusb-supply =vusb;
This doesn't seem right. Why do you ned a 'regulator' string along
with the phandle?
The original code was something like
if (twl-features TWL6025_SUBCLASS)
regulator_name = ldousb;
else
regulator_name = vusb;
I wasn't sure how to handle this *TWL6025_SUBCLASS* stuff.
+};
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;
};
#define comparator_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;
+ }
Isn't there a better way for the driver to know which supply to use
instead
of DT passing the supply name?
The problem I see is this same driver is
Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
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 =<>;
This doesn't seem right. Why do you ned a 'regulator' string along
with the phandle?
+};
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;
};
#define comparator_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 =>dev;
- pdata = dev->platform_data;
+ struct device_node *np = pdev->dev.of_node;
+ struct device *dev =>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 =>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(>comparator);
+ if (np) {
+ err = of_property_read_string(np, "regulator",>regulator);
+ if (err< 0) {
+ dev_err(>dev, "unable to get regulator\n");
+ return err;
+ }
Isn't there a better way for the driver to know which supply to use
instead of DT passing the supply name?
regards,
Rajendra
+ } else if (pdata) {
+ if (pdata->features& TWL6025_SUBCLASS)
+ twl->regulator = "ldousb";
+ else
+ twl->regulator = "vusb";
+ } else {
+ dev_err(>dev, "twl6030 initialized without pdata\n");
+ return -EINVAL;
+ }
+
/* init spinlock for workqueue */
spin_lock_init(>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[] = {
+ { .compatible = "ti,twl6030-usb" },
+
Re: [PATCH v1 05/11] drivers: usb: twl6030: Add dt support for twl6030 usb
On Thursday 28 June 2012 05:21 PM, Kishon Vijay Abraham I wrote:
Add device tree support for twl6030 usb driver.
Update the Documentation with device tree binding information.
Signed-off-by: Kishon Vijay Abraham Ikis...@ti.com
---
.../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 :supply-name can be vusb or ldousb
+ -supply-name-supply : phandle to the regulator device tree node
+
+twl6030-usb {
+ compatible = ti,twl6030-usb;
+ interrupts = 4 10;
+ regulator = vusb;
+ vusb-supply =vusb;
This doesn't seem right. Why do you ned a 'regulator' string along
with the phandle?
+};
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;
};
#define comparator_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;
+ }
Isn't there a better way for the driver to know which supply to use
instead of DT passing the supply name?
regards,
Rajendra
+ } 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[] = {
+ { .compatible =
