Remove most of remains of downstream usbpd code. Mainline kernel uses
different approach for managing Type-C / USB-PD, so this remains unused.
Do not touch usbpd callbacks for now, since they look usefull enough as
an example of how to handle connect/disconnect (to be rewritten into .
Signed-off-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
---
drivers/gpu/drm/msm/Makefile | 1 -
drivers/gpu/drm/msm/dp/dp_ctrl.c | 4 +-
drivers/gpu/drm/msm/dp/dp_ctrl.h | 3 +-
drivers/gpu/drm/msm/dp/dp_debug.c | 6 +--
drivers/gpu/drm/msm/dp/dp_debug.h | 4 +-
drivers/gpu/drm/msm/dp/dp_display.c | 36 ++-------------
drivers/gpu/drm/msm/dp/dp_hpd.c | 69 -----------------------------
drivers/gpu/drm/msm/dp/dp_hpd.h | 51 ---------------------
drivers/gpu/drm/msm/dp/dp_power.c | 2 +-
drivers/gpu/drm/msm/dp/dp_power.h | 3 +-
10 files changed, 11 insertions(+), 168 deletions(-)
delete mode 100644 drivers/gpu/drm/msm/dp/dp_hpd.c
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index 610d630326bb..8a58c1615d38 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -107,7 +107,6 @@ msm-$(CONFIG_DRM_MSM_DP)+= dp/dp_aux.o \
dp/dp_ctrl.o \
dp/dp_display.o \
dp/dp_drm.o \
- dp/dp_hpd.o \
dp/dp_link.o \
dp/dp_panel.o \
dp/dp_parser.o \
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index 1390f3547fde..7bb0f6a9b731 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -1364,7 +1364,7 @@ static int dp_ctrl_enable_stream_clocks(struct
dp_ctrl_private *ctrl)
return ret;
}
-int dp_ctrl_host_init(struct dp_ctrl *dp_ctrl, bool flip, bool reset)
+int dp_ctrl_host_init(struct dp_ctrl *dp_ctrl, bool reset)
{
struct dp_ctrl_private *ctrl;
struct dp_io *dp_io;
@@ -1379,8 +1379,6 @@ int dp_ctrl_host_init(struct dp_ctrl *dp_ctrl, bool flip,
bool reset)
dp_io = &ctrl->parser->io;
phy = dp_io->phy;
- ctrl->dp_ctrl.orientation = flip;
-
if (reset)
dp_catalog_ctrl_reset(ctrl->catalog);
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.h b/drivers/gpu/drm/msm/dp/dp_ctrl.h
index a836bd358447..682c3c511e8e 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.h
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.h
@@ -14,12 +14,11 @@
#include "dp_catalog.h"
struct dp_ctrl {
- bool orientation;
atomic_t aborted;
u32 pixel_rate;
};
-int dp_ctrl_host_init(struct dp_ctrl *dp_ctrl, bool flip, bool reset);
+int dp_ctrl_host_init(struct dp_ctrl *dp_ctrl, bool reset);
void dp_ctrl_host_deinit(struct dp_ctrl *dp_ctrl);
int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl);
int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl);
diff --git a/drivers/gpu/drm/msm/dp/dp_debug.c
b/drivers/gpu/drm/msm/dp/dp_debug.c
index 2f6247e80e9d..eb6288dcabde 100644
--- a/drivers/gpu/drm/msm/dp/dp_debug.c
+++ b/drivers/gpu/drm/msm/dp/dp_debug.c
@@ -21,7 +21,6 @@
struct dp_debug_private {
struct dentry *root;
- struct dp_usbpd *usbpd;
struct dp_link *link;
struct dp_panel *panel;
struct drm_connector **connector;
@@ -390,14 +389,14 @@ static int dp_debug_init(struct dp_debug *dp_debug,
struct drm_minor *minor)
}
struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
- struct dp_usbpd *usbpd, struct dp_link *link,
+ struct dp_link *link,
struct drm_connector **connector, struct drm_minor *minor)
{
int rc = 0;
struct dp_debug_private *debug;
struct dp_debug *dp_debug;
- if (!dev || !panel || !usbpd || !link) {
+ if (!dev || !panel || !link) {
DRM_ERROR("invalid input\n");
rc = -EINVAL;
goto error;
@@ -410,7 +409,6 @@ struct dp_debug *dp_debug_get(struct device *dev, struct
dp_panel *panel,
}
debug->dp_debug.debug_en = false;
- debug->usbpd = usbpd;
debug->link = link;
debug->panel = panel;
debug->dev = dev;
diff --git a/drivers/gpu/drm/msm/dp/dp_debug.h
b/drivers/gpu/drm/msm/dp/dp_debug.h
index 7eaedfbb149c..c5da109143da 100644
--- a/drivers/gpu/drm/msm/dp/dp_debug.h
+++ b/drivers/gpu/drm/msm/dp/dp_debug.h
@@ -42,7 +42,7 @@ struct dp_debug {
* for debugfs input to be communicated with existing modules
*/
struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
- struct dp_usbpd *usbpd, struct dp_link *link,
+ struct dp_link *link,
struct drm_connector **connector,
struct drm_minor *minor);
@@ -59,7 +59,7 @@ void dp_debug_put(struct dp_debug *dp_debug);
static inline
struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel,
- struct dp_usbpd *usbpd, struct dp_link *link,
+ struct dp_link *link,
struct drm_connector **connector, struct drm_minor *minor)
{
return ERR_PTR(-EINVAL);
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c
b/drivers/gpu/drm/msm/dp/dp_display.c
index 1784e119269b..ee227c69f9f2 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -88,7 +88,6 @@ struct dp_display_private {
struct platform_device *pdev;
struct dentry *root;
- struct dp_usbpd *usbpd;
struct dp_parser *parser;
struct dp_power *power;
struct dp_catalog *catalog;
@@ -361,20 +360,15 @@ static int dp_display_process_hpd_high(struct
dp_display_private *dp)
static void dp_display_host_init(struct dp_display_private *dp, int reset)
{
- bool flip = false;
-
if (dp->core_initialized) {
DRM_DEBUG_DP("DP core already initialized\n");
return;
}
- if (dp->usbpd->orientation == ORIENTATION_CC2)
- flip = true;
-
dp_display_set_encoder_mode(dp);
- dp_power_init(dp->power, flip);
- dp_ctrl_host_init(dp->ctrl, flip, reset);
+ dp_power_init(dp->power);
+ dp_ctrl_host_init(dp->ctrl, reset);
dp_aux_init(dp->aux);
dp->core_initialized = true;
}
@@ -502,7 +496,6 @@ static int dp_display_usbpd_attention_cb(struct device *dev)
int rc = 0;
u32 sink_request;
struct dp_display_private *dp;
- struct dp_usbpd *hpd;
if (!dev) {
DRM_ERROR("invalid dev\n");
@@ -516,8 +509,6 @@ static int dp_display_usbpd_attention_cb(struct device *dev)
return -ENODEV;
}
- hpd = dp->usbpd;
-
/* check for any test request issued by sink */
rc = dp_link_process_request(dp->link);
if (!rc) {
@@ -533,14 +524,10 @@ static int dp_display_usbpd_attention_cb(struct device
*dev)
static int dp_hpd_plug_handle(struct dp_display_private *dp, u32 data)
{
- struct dp_usbpd *hpd = dp->usbpd;
u32 state;
u32 tout = DP_TIMEOUT_5_SECOND;
int ret;
- if (!hpd)
- return 0;
-
mutex_lock(&dp->event_mutex);
state = dp->hpd_state;
@@ -563,11 +550,8 @@ static int dp_hpd_plug_handle(struct dp_display_private
*dp, u32 data)
dp->hpd_state = ST_CONNECT_PENDING;
- hpd->hpd_high = 1;
-
ret = dp_display_usbpd_configure_cb(&dp->pdev->dev);
if (ret) { /* link train failed */
- hpd->hpd_high = 0;
dp->hpd_state = ST_DISCONNECTED;
if (ret == -ECONNRESET) { /* cable unplugged */
@@ -619,12 +603,8 @@ static void dp_display_handle_plugged_change(struct msm_dp
*dp_display,
static int dp_hpd_unplug_handle(struct dp_display_private *dp, u32 data)
{
- struct dp_usbpd *hpd = dp->usbpd;
u32 state;
- if (!hpd)
- return 0;
-
mutex_lock(&dp->event_mutex);
state = dp->hpd_state;
@@ -646,8 +626,6 @@ static int dp_hpd_unplug_handle(struct dp_display_private
*dp, u32 data)
dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_PLUG_INT_MASK
| DP_DP_IRQ_HPD_INT_MASK, false);
- hpd->hpd_high = 0;
-
/*
* We don't need separate work for disconnect as
* connect/attention interrupts are disabled
@@ -744,14 +722,6 @@ static int dp_init_sub_modules(struct dp_display_private
*dp)
cb->disconnect = dp_display_usbpd_disconnect_cb;
cb->attention = dp_display_usbpd_attention_cb;
- dp->usbpd = dp_hpd_get(dev, cb);
- if (IS_ERR(dp->usbpd)) {
- rc = PTR_ERR(dp->usbpd);
- DRM_ERROR("failed to initialize hpd, rc = %d\n", rc);
- dp->usbpd = NULL;
- goto error;
- }
-
dp->parser = dp_parser_get(dp->pdev);
if (IS_ERR(dp->parser)) {
rc = PTR_ERR(dp->parser);
@@ -1380,7 +1350,7 @@ void msm_dp_debugfs_init(struct msm_dp *dp_display,
struct drm_minor *minor)
dp = container_of(dp_display, struct dp_display_private, dp_display);
dev = &dp->pdev->dev;
- dp->debug = dp_debug_get(dev, dp->panel, dp->usbpd,
+ dp->debug = dp_debug_get(dev, dp->panel,
dp->link, &dp->dp_display.connector,
minor);
if (IS_ERR(dp->debug)) {
diff --git a/drivers/gpu/drm/msm/dp/dp_hpd.c b/drivers/gpu/drm/msm/dp/dp_hpd.c
deleted file mode 100644
index e1c90fa47411..000000000000
--- a/drivers/gpu/drm/msm/dp/dp_hpd.c
+++ /dev/null
@@ -1,69 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
- */
-
-#define pr_fmt(fmt) "[drm-dp] %s: " fmt, __func__
-
-#include <linux/slab.h>
-#include <linux/device.h>
-
-#include "dp_hpd.h"
-
-/* DP specific VDM commands */
-#define DP_USBPD_VDM_STATUS 0x10
-#define DP_USBPD_VDM_CONFIGURE 0x11
-
-/* USBPD-TypeC specific Macros */
-#define VDM_VERSION 0x0
-#define USB_C_DP_SID 0xFF01
-
-struct dp_hpd_private {
- struct device *dev;
- struct dp_usbpd_cb *dp_cb;
- struct dp_usbpd dp_usbpd;
-};
-
-int dp_hpd_connect(struct dp_usbpd *dp_usbpd, bool hpd)
-{
- int rc = 0;
- struct dp_hpd_private *hpd_priv;
-
- hpd_priv = container_of(dp_usbpd, struct dp_hpd_private,
- dp_usbpd);
-
- dp_usbpd->hpd_high = hpd;
-
- if (!hpd_priv->dp_cb || !hpd_priv->dp_cb->configure
- || !hpd_priv->dp_cb->disconnect) {
- pr_err("hpd dp_cb not initialized\n");
- return -EINVAL;
- }
- if (hpd)
- hpd_priv->dp_cb->configure(hpd_priv->dev);
- else
- hpd_priv->dp_cb->disconnect(hpd_priv->dev);
-
- return rc;
-}
-
-struct dp_usbpd *dp_hpd_get(struct device *dev, struct dp_usbpd_cb *cb)
-{
- struct dp_hpd_private *dp_hpd;
-
- if (!cb) {
- pr_err("invalid cb data\n");
- return ERR_PTR(-EINVAL);
- }
-
- dp_hpd = devm_kzalloc(dev, sizeof(*dp_hpd), GFP_KERNEL);
- if (!dp_hpd)
- return ERR_PTR(-ENOMEM);
-
- dp_hpd->dev = dev;
- dp_hpd->dp_cb = cb;
-
- dp_hpd->dp_usbpd.connect = dp_hpd_connect;
-
- return &dp_hpd->dp_usbpd;
-}
diff --git a/drivers/gpu/drm/msm/dp/dp_hpd.h b/drivers/gpu/drm/msm/dp/dp_hpd.h
index 5bc5bb64680f..1d16cc49b5b7 100644
--- a/drivers/gpu/drm/msm/dp/dp_hpd.h
+++ b/drivers/gpu/drm/msm/dp/dp_hpd.h
@@ -11,42 +11,6 @@
#include <linux/types.h>
#include <linux/device.h>
-enum plug_orientation {
- ORIENTATION_NONE,
- ORIENTATION_CC1,
- ORIENTATION_CC2,
-};
-
-/**
- * struct dp_usbpd - DisplayPort status
- *
- * @orientation: plug orientation configuration
- * @low_pow_st: low power state
- * @adaptor_dp_en: adaptor functionality enabled
- * @multi_func: multi-function preferred
- * @usb_config_req: request to switch to usb
- * @exit_dp_mode: request exit from displayport mode
- * @hpd_high: Hot Plug Detect signal is high.
- * @hpd_irq: Change in the status since last message
- * @alt_mode_cfg_done: bool to specify alt mode status
- * @debug_en: bool to specify debug mode
- * @connect: simulate disconnect or connect for debug mode
- */
-struct dp_usbpd {
- enum plug_orientation orientation;
- bool low_pow_st;
- bool adaptor_dp_en;
- bool multi_func;
- bool usb_config_req;
- bool exit_dp_mode;
- bool hpd_high;
- bool hpd_irq;
- bool alt_mode_cfg_done;
- bool debug_en;
-
- int (*connect)(struct dp_usbpd *dp_usbpd, bool hpd);
-};
-
/**
* struct dp_usbpd_cb - callback functions provided by the client
*
@@ -62,19 +26,4 @@ struct dp_usbpd_cb {
int (*attention)(struct device *dev);
};
-/**
- * dp_hpd_get() - setup hpd module
- *
- * @dev: device instance of the caller
- * @cb: struct containing callback function pointers.
- *
- * This function allows the client to initialize the usbpd
- * module. The module will communicate with HPD module.
- */
-struct dp_usbpd *dp_hpd_get(struct device *dev, struct dp_usbpd_cb *cb);
-
-int dp_hpd_register(struct dp_usbpd *dp_usbpd);
-void dp_hpd_unregister(struct dp_usbpd *dp_usbpd);
-int dp_hpd_connect(struct dp_usbpd *dp_usbpd, bool hpd);
-
#endif /* _DP_HPD_H_ */
diff --git a/drivers/gpu/drm/msm/dp/dp_power.c
b/drivers/gpu/drm/msm/dp/dp_power.c
index 3961ba4efc3c..6e3bcf582308 100644
--- a/drivers/gpu/drm/msm/dp/dp_power.c
+++ b/drivers/gpu/drm/msm/dp/dp_power.c
@@ -338,7 +338,7 @@ void dp_power_client_deinit(struct dp_power *dp_power)
}
-int dp_power_init(struct dp_power *dp_power, bool flip)
+int dp_power_init(struct dp_power *dp_power)
{
int rc = 0;
struct dp_power_private *power = NULL;
diff --git a/drivers/gpu/drm/msm/dp/dp_power.h
b/drivers/gpu/drm/msm/dp/dp_power.h
index 7d0327bbc0d5..7c445f51b0f8 100644
--- a/drivers/gpu/drm/msm/dp/dp_power.h
+++ b/drivers/gpu/drm/msm/dp/dp_power.h
@@ -26,13 +26,12 @@ struct dp_power {
* dp_power_init() - enable power supplies for display controller
*
* @power: instance of power module
- * @flip: bool for flipping gpio direction
* return: 0 if success or error if failure.
*
* This API will turn on the regulators and configures gpio's
* aux/hpd.
*/
-int dp_power_init(struct dp_power *power, bool flip);
+int dp_power_init(struct dp_power *power);
/**
* dp_power_deinit() - turn off regulators and gpios.
--
2.30.2
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