diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2013-06-03 17:10:40 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@gmail.com> | 2013-06-17 12:32:54 +0400 |
| commit | 9125e6186822b2698da17690416cd1b55c030115 (patch) | |
| tree | 33c993cb831125d9c59dda1b011737cfb2be54ef /drivers/gpu/drm/drm_crtc.c | |
| parent | e6e792092e816bea0797995c886fb057c91d4546 (diff) | |
| download | linux-9125e6186822b2698da17690416cd1b55c030115.tar.xz | |
drm: Add drm_plane_force_disable()
drm_plane_force_disable() will forcibly disable the plane even if user
had previously requested the plane to be enabled.
This can be used to force planes to be off when restoring the fbdev
mode.
The code was simply pulled from drm_framebuffer_remove(), which now
calls the new function as well.
v2: Check plane->fb in drm_plane_force_disable(), drop bogus comment
about disabling crtc
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index baee5752ca6b..c8042a1c83b8 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -592,16 +592,8 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb) } list_for_each_entry(plane, &dev->mode_config.plane_list, head) { - if (plane->fb == fb) { - /* should turn off the crtc */ - ret = plane->funcs->disable_plane(plane); - if (ret) - DRM_ERROR("failed to disable plane with busy fb\n"); - /* disconnect the plane from the fb and crtc: */ - __drm_framebuffer_unreference(plane->fb); - plane->fb = NULL; - plane->crtc = NULL; - } + if (plane->fb == fb) + drm_plane_force_disable(plane); } drm_modeset_unlock_all(dev); } @@ -891,6 +883,23 @@ void drm_plane_cleanup(struct drm_plane *plane) } EXPORT_SYMBOL(drm_plane_cleanup); +void drm_plane_force_disable(struct drm_plane *plane) +{ + int ret; + + if (!plane->fb) + return; + + ret = plane->funcs->disable_plane(plane); + if (ret) + DRM_ERROR("failed to disable plane with busy fb\n"); + /* disconnect the plane from the fb and crtc: */ + __drm_framebuffer_unreference(plane->fb); + plane->fb = NULL; + plane->crtc = NULL; +} +EXPORT_SYMBOL(drm_plane_force_disable); + /** * drm_mode_create - create a new display mode * @dev: DRM device |