diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index c8042a1c83b8..755d9bb0b4e2 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -819,6 +819,21 @@ void drm_encoder_cleanup(struct drm_encoder *encoder) } EXPORT_SYMBOL(drm_encoder_cleanup); +/** + * drm_plane_init - Initialise a new plane object + * @dev: DRM device + * @plane: plane object to init + * @possible_crtcs: bitmask of possible CRTCs + * @funcs: callbacks for the new plane + * @formats: array of supported formats (%DRM_FORMAT_*) + * @format_count: number of elements in @formats + * @priv: plane is private (hidden from userspace)? + * + * Inits a new object created as base part of a driver plane object. + * + * RETURNS: + * Zero on success, error code on failure. + */ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, unsigned long possible_crtcs, const struct drm_plane_funcs *funcs, @@ -867,6 +882,14 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, } EXPORT_SYMBOL(drm_plane_init); +/** + * drm_plane_cleanup - Clean up the core plane usage + * @plane: plane to cleanup + * + * This function cleans up @plane and removes it from the DRM mode setting + * core. Note that the function does *not* free the plane structure itself, + * this is the responsibility of the caller. + */ void drm_plane_cleanup(struct drm_plane *plane) { struct drm_device *dev = plane->dev; @@ -883,6 +906,15 @@ void drm_plane_cleanup(struct drm_plane *plane) } EXPORT_SYMBOL(drm_plane_cleanup); +/** + * drm_plane_force_disable - Forcibly disable a plane + * @plane: plane to disable + * + * Forces the plane to be disabled. + * + * Used when the plane's current framebuffer is destroyed, + * and when restoring fbdev mode. + */ void drm_plane_force_disable(struct drm_plane *plane) { int ret; |