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drm/radeon: restore the fbdev mode in lastclose

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restore the fbdev state if a drm app like X is killed.

Tested-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2015-10-02 16:52:58 -04:00
parent 2b02ec7900
commit 8c70e1cda0
3 changed files with 21 additions and 1 deletions
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16
drivers/gpu/drm/radeon/radeon_fb.c
View File

@ -397,3 +397,19 @@ void radeon_fb_remove_connector(struct radeon_device *rdev, struct drm_connector
{
drm_fb_helper_remove_one_connector(&rdev->mode_info.rfbdev->helper, connector);
}
void radeon_fbdev_restore_mode(struct radeon_device *rdev)
{
struct radeon_fbdev *rfbdev = rdev->mode_info.rfbdev;
struct drm_fb_helper *fb_helper;
int ret;
if (!rfbdev)
return;
fb_helper = &rfbdev->helper;
ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
if (ret)
DRM_DEBUG("failed to restore crtc mode\n");
}

5
drivers/gpu/drm/radeon/radeon_kms.c
View File

@ -598,7 +598,7 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
* Outdated mess for old drm with Xorg being in charge (void function now).
*/
/**
* radeon_driver_firstopen_kms - drm callback for last close
* radeon_driver_lastclose_kms - drm callback for last close
*
* @dev: drm dev pointer
*
@ -606,6 +606,9 @@ static int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file
*/
void radeon_driver_lastclose_kms(struct drm_device *dev)
{
struct radeon_device *rdev = dev->dev_private;
radeon_fbdev_restore_mode(rdev);
vga_switcheroo_process_delayed_switch();
}

1
drivers/gpu/drm/radeon/radeon_mode.h
View File

@ -980,6 +980,7 @@ int radeon_fbdev_init(struct radeon_device *rdev);
void radeon_fbdev_fini(struct radeon_device *rdev);
void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state);
bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj);
void radeon_fbdev_restore_mode(struct radeon_device *rdev);
void radeon_fb_output_poll_changed(struct radeon_device *rdev);