As a pair to already existing drm_connector_unplug_all() we're adding generic implementation of what is already done in some drivers.
After implementation of that new helper we're updating 2 drivers that used to use it's own implementation: [1] atmel_hlcdc [2] rcar_du
Other drivers still use load() callback and so should be first modified so their load() gets called from their probe() explicitly.
Build- and run-tested on yet to be upstreamed ARC PGU (part of AXS10x board).
Alexey Brodkin (3): drm: introduce drm_connector_plug_all() helper drm: atmel_hldc - use generic drm_connector_plug_all() helper drm: rcar-du - use generic drm_connector_plug_all() helper
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 39 ++---------------------- drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++- drivers/gpu/drm/drm_drv.c | 3 +- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 9 +----- include/drm/drm_crtc.h | 3 +- 5 files changed, 50 insertions(+), 48 deletions(-)
Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie Cc: Boris Brezillon boris.brezillon@free-electrons.com Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: linux-renesas-soc@vger.kernel.org
As a pair to already existing drm_connector_unplug_all() we're adding generic implementation of what is already done in some drivers.
Once this helper is implemented we'll be ready to switch existing driver-specific implementations with generic one.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie --- drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/drm_drv.c | 3 ++- include/drm/drm_crtc.h | 3 ++- 3 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 65258ac..ce27420 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1080,6 +1080,46 @@ void drm_connector_unregister(struct drm_connector *connector) } EXPORT_SYMBOL(drm_connector_unregister);
+/** + * drm_connector_plug_all - register connector userspace interfaces + * @dev: drm device + * + * This function registers all connector userspace interfaces in sysfs. Should + * be call when the device is disconnected, e.g. from an usb driver's + * ->connect callback. + */ +int drm_connector_plug_all(struct drm_device *dev) +{ + struct drm_connector *connector, *failed; + int ret; + + mutex_lock(&dev->mode_config.mutex); + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + ret = drm_connector_register(connector); + if (ret) { + failed = connector; + goto err; + } + } + + mutex_unlock(&dev->mode_config.mutex); + + return 0; + +err: + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + if (failed == connector) + break; + + drm_connector_unregister(connector); + } + + mutex_unlock(&dev->mode_config.mutex); + + return ret; +} +EXPORT_SYMBOL(drm_connector_plug_all);
/** * drm_connector_unplug_all - unregister connector userspace interfaces @@ -1093,10 +1133,12 @@ void drm_connector_unplug_all(struct drm_device *dev) { struct drm_connector *connector;
- /* FIXME: taking the mode config mutex ends up in a clash with sysfs */ + mutex_lock(&dev->mode_config.mutex); + list_for_each_entry(connector, &dev->mode_config.connector_list, head) drm_connector_unregister(connector);
+ mutex_unlock(&dev->mode_config.mutex); } EXPORT_SYMBOL(drm_connector_unplug_all);
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 167c8d3..4a559c6 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -715,7 +715,8 @@ EXPORT_SYMBOL(drm_dev_unref); * * Register the DRM device @dev with the system, advertise device to user-space * and start normal device operation. @dev must be allocated via drm_dev_alloc() - * previously. + * previously and right after drm_dev_register() driver should call + * drm_connector_plug_all() to register all connectors in sysfs. * * Never call this twice on any device! * diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 8c7fb3d..aa8789e 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -2214,7 +2214,8 @@ void drm_connector_unregister(struct drm_connector *connector);
extern void drm_connector_cleanup(struct drm_connector *connector); extern unsigned int drm_connector_index(struct drm_connector *connector); -/* helper to unplug all connectors from sysfs for device */ +/* helpers to plug/unplug all connectors to/from sysfs for device */ +extern int drm_connector_plug_all(struct drm_device *dev); extern void drm_connector_unplug_all(struct drm_device *dev);
extern int drm_bridge_add(struct drm_bridge *bridge);
On Fri, Mar 18, 2016 at 01:01:42PM +0300, Alexey Brodkin wrote:
As a pair to already existing drm_connector_unplug_all() we're adding generic implementation of what is already done in some drivers.
Once this helper is implemented we'll be ready to switch existing driver-specific implementations with generic one.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie
drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/drm_drv.c | 3 ++- include/drm/drm_crtc.h | 3 ++- 3 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 65258ac..ce27420 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1080,6 +1080,46 @@ void drm_connector_unregister(struct drm_connector *connector) } EXPORT_SYMBOL(drm_connector_unregister);
+/**
- drm_connector_plug_all - register connector userspace interfaces
- @dev: drm device
- This function registers all connector userspace interfaces in sysfs. Should
- be call when the device is disconnected, e.g. from an usb driver's
Still talks about disconnect ;-) Please also mention that this just calls drm_connector_register() exactly like this including () to generate a kerneldoc hyperlink.
- ->connect callback.
Returns: section is missing, specifying how this can fail. Just copy the one from connector_register().
- */
+int drm_connector_plug_all(struct drm_device *dev) +{
- struct drm_connector *connector, *failed;
- int ret;
- mutex_lock(&dev->mode_config.mutex);
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
for_each_connector here please. And the s/plug/register/ naming discussion we've had.
ret = drm_connector_register(connector);if (ret) {failed = connector;goto err;}- }
- mutex_unlock(&dev->mode_config.mutex);
- return 0;
+err:
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (failed == connector)break;drm_connector_unregister(connector);- }
- mutex_unlock(&dev->mode_config.mutex);
- return ret;
+} +EXPORT_SYMBOL(drm_connector_plug_all);
/**
- drm_connector_unplug_all - unregister connector userspace interfaces
@@ -1093,10 +1133,12 @@ void drm_connector_unplug_all(struct drm_device *dev) { struct drm_connector *connector;
- /* FIXME: taking the mode config mutex ends up in a clash with sysfs */
- mutex_lock(&dev->mode_config.mutex);
You can't drop that FIXME, the bug is still there.
list_for_each_entry(connector, &dev->mode_config.connector_list, head) drm_connector_unregister(connector);
mutex_unlock(&dev->mode_config.mutex);
} EXPORT_SYMBOL(drm_connector_unplug_all);
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 167c8d3..4a559c6 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -715,7 +715,8 @@ EXPORT_SYMBOL(drm_dev_unref);
- Register the DRM device @dev with the system, advertise device to user-space
- and start normal device operation. @dev must be allocated via drm_dev_alloc()
- previously.
- previously and right after drm_dev_register() driver should call
It'd do 2 sentences here for simplicity, not connect them with and. Also "... _the_ driver should ..."
- drm_connector_plug_all() to register all connectors in sysfs.
Maybe mention why this is separate: "This is a separate call for backwards compatibility with drivers still using the deprecated ->load() callback, where connectors are registered from within the ->load() callback."
Besides these details looks good. -Daniel
- Never call this twice on any device!
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 8c7fb3d..aa8789e 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -2214,7 +2214,8 @@ void drm_connector_unregister(struct drm_connector *connector);
extern void drm_connector_cleanup(struct drm_connector *connector); extern unsigned int drm_connector_index(struct drm_connector *connector); -/* helper to unplug all connectors from sysfs for device */ +/* helpers to plug/unplug all connectors to/from sysfs for device */ +extern int drm_connector_plug_all(struct drm_device *dev); extern void drm_connector_unplug_all(struct drm_device *dev);
extern int drm_bridge_add(struct drm_bridge *bridge);
2.5.0
Hi Daniel,
On Fri, 2016-03-18 at 19:06 +0100, Daniel Vetter wrote:
On Fri, Mar 18, 2016 at 01:01:42PM +0300, Alexey Brodkin wrote:
As a pair to already existing drm_connector_unplug_all() we're adding generic implementation of what is already done in some drivers.
Once this helper is implemented we'll be ready to switch existing driver-specific implementations with generic one.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie
drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/drm_drv.c | 3 ++- include/drm/drm_crtc.h | 3 ++- 3 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 65258ac..ce27420 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1080,6 +1080,46 @@ void drm_connector_unregister(struct drm_connector *connector) } EXPORT_SYMBOL(drm_connector_unregister); +/**
- drm_connector_plug_all - register connector userspace interfaces
- @dev: drm device
- This function registers all connector userspace interfaces in sysfs. Should
- be call when the device is disconnected, e.g. from an usb driver's
Still talks about disconnect ;-) Please also mention that this just calls drm_connector_register() exactly like this including () to generate a kerneldoc hyperlink.
Well I intentionally left in description of drm_connector_register_all(): "Should be call when the device is disconnected, e.g. from an usb driver's ->connect callback."
I did mean it. Or is this statement is incorrect and example of invocation of drm_connector_register_all() should be different? Which one works better then?
- ->connect callback.
Returns: section is missing, specifying how this can fail. Just copy the one from connector_register().
Yeah, correct. Blind copy-paste doesn't work equally good always :(
- */
+int drm_connector_plug_all(struct drm_device *dev) +{
- struct drm_connector *connector, *failed;
- int ret;
- mutex_lock(&dev->mode_config.mutex);
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
for_each_connector here please. And the s/plug/register/ naming discussion we've had.
Ok.
ret = drm_connector_register(connector);if (ret) {failed = connector;goto err;}- }
- mutex_unlock(&dev->mode_config.mutex);
- return 0;
+err:
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (failed == connector)break;drm_connector_unregister(connector);- }
- mutex_unlock(&dev->mode_config.mutex);
- return ret;
+} +EXPORT_SYMBOL(drm_connector_plug_all); /** * drm_connector_unplug_all - unregister connector userspace interfaces @@ -1093,10 +1133,12 @@ void drm_connector_unplug_all(struct drm_device *dev) { struct drm_connector *connector;
- /* FIXME: taking the mode config mutex ends up in a clash with sysfs */
- mutex_lock(&dev->mode_config.mutex);
You can't drop that FIXME, the bug is still there.
That's clear given your explanation in the previous email.
list_for_each_entry(connector, &dev->mode_config.connector_list, head) drm_connector_unregister(connector);
- mutex_unlock(&dev->mode_config.mutex);
} EXPORT_SYMBOL(drm_connector_unplug_all); diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 167c8d3..4a559c6 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -715,7 +715,8 @@ EXPORT_SYMBOL(drm_dev_unref); * * Register the DRM device @dev with the system, advertise device to user-space * and start normal device operation. @dev must be allocated via drm_dev_alloc()
- previously.
- previously and right after drm_dev_register() driver should call
It'd do 2 sentences here for simplicity, not connect them with and. Also "... _the_ driver should ..."
Ok.
- drm_connector_plug_all() to register all connectors in sysfs.
Maybe mention why this is separate: "This is a separate call for backwards compatibility with drivers still using the deprecated ->load() callback, where connectors are registered from within the ->load() callback."
Ok.
-Alexey
On Fri, Mar 18, 2016 at 09:58:49PM +0000, Alexey Brodkin wrote:
Hi Daniel,
On Fri, 2016-03-18 at 19:06 +0100, Daniel Vetter wrote:
On Fri, Mar 18, 2016 at 01:01:42PM +0300, Alexey Brodkin wrote:
As a pair to already existing drm_connector_unplug_all() we're adding generic implementation of what is already done in some drivers.
Once this helper is implemented we'll be ready to switch existing driver-specific implementations with generic one.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie
drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/drm_drv.c | 3 ++- include/drm/drm_crtc.h | 3 ++- 3 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 65258ac..ce27420 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1080,6 +1080,46 @@ void drm_connector_unregister(struct drm_connector *connector) } EXPORT_SYMBOL(drm_connector_unregister); +/**
- drm_connector_plug_all - register connector userspace interfaces
- @dev: drm device
- This function registers all connector userspace interfaces in sysfs. Should
- be call when the device is disconnected, e.g. from an usb driver's
Still talks about disconnect ;-) Please also mention that this just calls drm_connector_register() exactly like this including () to generate a kerneldoc hyperlink.
Well I intentionally left in description of drm_connector_register_all(): "Should be call when the device is disconnected, e.g. from an usb driver's ->connect callback."
You use "disconnected" for connecting stuff. That doesn't make sense to me at all - register_all is for when you want to publish something, not for unpublishing when the device disappears. Or maybe this is a case of lost in translation, and you mean something else? -Daniel
I did mean it. Or is this statement is incorrect and example of invocation of drm_connector_register_all() should be different? Which one works better then?
- ->connect callback.
Returns: section is missing, specifying how this can fail. Just copy the one from connector_register().
Yeah, correct. Blind copy-paste doesn't work equally good always :(
- */
+int drm_connector_plug_all(struct drm_device *dev) +{
- struct drm_connector *connector, *failed;
- int ret;
- mutex_lock(&dev->mode_config.mutex);
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
for_each_connector here please. And the s/plug/register/ naming discussion we've had.
Ok.
ret = drm_connector_register(connector);if (ret) {failed = connector;goto err;}- }
- mutex_unlock(&dev->mode_config.mutex);
- return 0;
+err:
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (failed == connector)break;drm_connector_unregister(connector);- }
- mutex_unlock(&dev->mode_config.mutex);
- return ret;
+} +EXPORT_SYMBOL(drm_connector_plug_all); /** * drm_connector_unplug_all - unregister connector userspace interfaces @@ -1093,10 +1133,12 @@ void drm_connector_unplug_all(struct drm_device *dev) { struct drm_connector *connector;
- /* FIXME: taking the mode config mutex ends up in a clash with sysfs */
- mutex_lock(&dev->mode_config.mutex);
You can't drop that FIXME, the bug is still there.
That's clear given your explanation in the previous email.
list_for_each_entry(connector, &dev->mode_config.connector_list, head) drm_connector_unregister(connector);
- mutex_unlock(&dev->mode_config.mutex);
} EXPORT_SYMBOL(drm_connector_unplug_all); diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 167c8d3..4a559c6 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -715,7 +715,8 @@ EXPORT_SYMBOL(drm_dev_unref); * * Register the DRM device @dev with the system, advertise device to user-space * and start normal device operation. @dev must be allocated via drm_dev_alloc()
- previously.
- previously and right after drm_dev_register() driver should call
It'd do 2 sentences here for simplicity, not connect them with and. Also "... _the_ driver should ..."
Ok.
- drm_connector_plug_all() to register all connectors in sysfs.
Maybe mention why this is separate: "This is a separate call for backwards compatibility with drivers still using the deprecated ->load() callback, where connectors are registered from within the ->load() callback."
Ok.
-Alexey
Hi Daniel,
On Sat, 2016-03-19 at 11:02 +0100, Daniel Vetter wrote:
On Fri, Mar 18, 2016 at 09:58:49PM +0000, Alexey Brodkin wrote:
Hi Daniel,
On Fri, 2016-03-18 at 19:06 +0100, Daniel Vetter wrote:
On Fri, Mar 18, 2016 at 01:01:42PM +0300, Alexey Brodkin wrote:
As a pair to already existing drm_connector_unplug_all() we're adding generic implementation of what is already done in some drivers.
Once this helper is implemented we'll be ready to switch existing driver-specific implementations with generic one.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie
drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/drm_drv.c | 3 ++- include/drm/drm_crtc.h | 3 ++- 3 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 65258ac..ce27420 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1080,6 +1080,46 @@ void drm_connector_unregister(struct drm_connector *connector) } EXPORT_SYMBOL(drm_connector_unregister); +/**
- drm_connector_plug_all - register connector userspace interfaces
- @dev: drm device
- This function registers all connector userspace interfaces in sysfs. Should
- be call when the device is disconnected, e.g. from an usb driver's
Still talks about disconnect ;-) Please also mention that this just calls drm_connector_register() exactly like this including () to generate a kerneldoc hyperlink.
Well I intentionally left in description of drm_connector_register_all(): "Should be call when the device is disconnected, e.g. from an usb driver's ->connect callback."
You use "disconnected" for connecting stuff. That doesn't make sense to me at all - register_all is for when you want to publish something, not for unpublishing when the device disappears. Or maybe this is a case of lost in translation, and you mean something else?
Let me try to explain what I meant.
We execute ->connect() callback of USB device when USB device is still in "disconnected" state (well at least that was my thought). And only when that ->connect() callback succeeds we're entering "connected" state.
Probably above sentence is not correct. Then could you please help me with correct wording of comment to drm_connector_register_all()?
-Alexey
On Mon, Mar 21, 2016 at 11:02:21AM +0000, Alexey Brodkin wrote:
Hi Daniel,
On Sat, 2016-03-19 at 11:02 +0100, Daniel Vetter wrote:
On Fri, Mar 18, 2016 at 09:58:49PM +0000, Alexey Brodkin wrote:
Hi Daniel,
On Fri, 2016-03-18 at 19:06 +0100, Daniel Vetter wrote:
On Fri, Mar 18, 2016 at 01:01:42PM +0300, Alexey Brodkin wrote:
As a pair to already existing drm_connector_unplug_all() we're adding generic implementation of what is already done in some drivers.
Once this helper is implemented we'll be ready to switch existing driver-specific implementations with generic one.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie
drivers/gpu/drm/drm_crtc.c | 44 +++++++++++++++++++++++++++++++++++++++++++- drivers/gpu/drm/drm_drv.c | 3 ++- include/drm/drm_crtc.h | 3 ++- 3 files changed, 47 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 65258ac..ce27420 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1080,6 +1080,46 @@ void drm_connector_unregister(struct drm_connector *connector) } EXPORT_SYMBOL(drm_connector_unregister); +/**
- drm_connector_plug_all - register connector userspace interfaces
- @dev: drm device
- This function registers all connector userspace interfaces in sysfs. Should
- be call when the device is disconnected, e.g. from an usb driver's
Still talks about disconnect ;-) Please also mention that this just calls drm_connector_register() exactly like this including () to generate a kerneldoc hyperlink.
Well I intentionally left in description of drm_connector_register_all(): "Should be call when the device is disconnected, e.g. from an usb driver's ->connect callback."
You use "disconnected" for connecting stuff. That doesn't make sense to me at all - register_all is for when you want to publish something, not for unpublishing when the device disappears. Or maybe this is a case of lost in translation, and you mean something else?
Let me try to explain what I meant.
We execute ->connect() callback of USB device when USB device is still in "disconnected" state (well at least that was my thought). And only when that ->connect() callback succeeds we're entering "connected" state.
Probably above sentence is not correct. Then could you please help me with correct wording of comment to drm_connector_register_all()?
Yeah, your sentence suggests more that register_all should be called when someone unplugs udl. What about:
"This function registers all connectors in sysfs and other places so that userspace can start to access them. Drivers can call it after calling drm_dev_register() to complete the device registration, if they don't call drm_connector_register() on each connector individually.
When a device is unplugged and should be removed from userspace access, call drm_connector_unregister_all(), which is the inverse of this function."
And for drm_connector_unregister_all:
"This functions unregisters all connectors from sysfs and other places so that userspace can no longer access them. Drivers should call this as the first step tearing down the device instace, or when the underlying physical device disappeared (e.g. USB unplug), right before calling drm_dev_unregister()."
Thinking about this we might want to merge drm_dev_register and drm_connector_register_all, but that's a long-term goal which will need some trickery to no break drivers.
Cheers, Daniel
This driver used to have its own implementation of connector_plug_all() which actually was taken as a prototype of drm_connector_plug_all().
Now when drm_connector_plug_all() exists reusing it here.
And while at it getting rid of mutex in both plug() and unplug() because they were moved to generic helper as well.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie Cc: Boris Brezillon boris.brezillon@free-electrons.com --- drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c | 39 ++-------------------------- 1 file changed, 2 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c index 3d8d164..ca19ef1 100644 --- a/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c +++ b/drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c @@ -584,41 +584,6 @@ static void atmel_hlcdc_dc_unload(struct drm_device *dev) destroy_workqueue(dc->wq); }
-static int atmel_hlcdc_dc_connector_plug_all(struct drm_device *dev) -{ - struct drm_connector *connector, *failed; - int ret; - - mutex_lock(&dev->mode_config.mutex); - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - ret = drm_connector_register(connector); - if (ret) { - failed = connector; - goto err; - } - } - mutex_unlock(&dev->mode_config.mutex); - return 0; - -err: - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - if (failed == connector) - break; - - drm_connector_unregister(connector); - } - mutex_unlock(&dev->mode_config.mutex); - - return ret; -} - -static void atmel_hlcdc_dc_connector_unplug_all(struct drm_device *dev) -{ - mutex_lock(&dev->mode_config.mutex); - drm_connector_unplug_all(dev); - mutex_unlock(&dev->mode_config.mutex); -} - static void atmel_hlcdc_dc_lastclose(struct drm_device *dev) { struct atmel_hlcdc_dc *dc = dev->dev_private; @@ -736,7 +701,7 @@ static int atmel_hlcdc_dc_drm_probe(struct platform_device *pdev) if (ret) goto err_unload;
- ret = atmel_hlcdc_dc_connector_plug_all(ddev); + ret = drm_connector_plug_all(ddev); if (ret) goto err_unregister;
@@ -758,7 +723,7 @@ static int atmel_hlcdc_dc_drm_remove(struct platform_device *pdev) { struct drm_device *ddev = platform_get_drvdata(pdev);
- atmel_hlcdc_dc_connector_unplug_all(ddev); + drm_connector_unplug_all(ddev); drm_dev_unregister(ddev); atmel_hlcdc_dc_unload(ddev); drm_dev_unref(ddev);
Now when generic drm_connector_plug_all() helper exists we may safely substiture with it driver-specific implementation of connectors plugging in sysfs.
Signed-off-by: Alexey Brodkin abrodkin@synopsys.com Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie Cc: Laurent Pinchart laurent.pinchart@ideasonboard.com Cc: linux-renesas-soc@vger.kernel.org --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index ed6006b..d5ec674 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -364,14 +364,7 @@ static int rcar_du_probe(struct platform_device *pdev) if (ret) goto error;
- mutex_lock(&ddev->mode_config.mutex); - drm_for_each_connector(connector, ddev) { - ret = drm_connector_register(connector); - if (ret < 0) - break; - } - mutex_unlock(&ddev->mode_config.mutex); - + ret = drm_connector_plug_all(ddev); if (ret < 0) goto error;
dri-devel@lists.freedesktop.org
-
Alexey Brodkin -
Daniel Vetter