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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
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@@ -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");
}