Add .prepare_fb and .cleanup_fb plane hooks into the drm_simple_kms. These can be used by drivers to call ie. the drm_fb_cma_setup_fence() helper.

Signed-off-by: Marek Vasut marex@denx.de Cc: Noralf Trønnes noralf@tronnes.org Cc: Daniel Vetter daniel@ffwll.ch Cc: David Airlie airlied@linux.ie --- V2: Fix the documentation style to play well with make htmldocs --- drivers/gpu/drm/drm_simple_kms_helper.c | 26 ++++++++++++++++++++++++++ include/drm/drm_simple_kms_helper.h | 16 ++++++++++++++++ 2 files changed, 42 insertions(+)

diff --git a/drivers/gpu/drm/drm_simple_kms_helper.c b/drivers/gpu/drm/drm_simple_kms_helper.c index 7b6d26e..7bae08c 100644 --- a/drivers/gpu/drm/drm_simple_kms_helper.c +++ b/drivers/gpu/drm/drm_simple_kms_helper.c @@ -125,7 +125,33 @@ static void drm_simple_kms_plane_atomic_update(struct drm_plane *plane, pipe->funcs->update(pipe, pstate); }

+static int drm_simple_kms_plane_prepare_fb(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->prepare_fb) + return 0; + + return pipe->funcs->prepare_fb(pipe, state); +} + +static void drm_simple_kms_plane_cleanup_fb(struct drm_plane *plane, + struct drm_plane_state *state) +{ + struct drm_simple_display_pipe *pipe; + + pipe = container_of(plane, struct drm_simple_display_pipe, plane); + if (!pipe->funcs || !pipe->funcs->cleanup_fb) + return; + + pipe->funcs->cleanup_fb(pipe, state); +} + static const struct drm_plane_helper_funcs drm_simple_kms_plane_helper_funcs = { + .prepare_fb = drm_simple_kms_plane_prepare_fb, + .cleanup_fb = drm_simple_kms_plane_cleanup_fb, .atomic_check = drm_simple_kms_plane_atomic_check, .atomic_update = drm_simple_kms_plane_atomic_update, }; diff --git a/include/drm/drm_simple_kms_helper.h b/include/drm/drm_simple_kms_helper.h index 5d112f7..140362a 100644 --- a/include/drm/drm_simple_kms_helper.h +++ b/include/drm/drm_simple_kms_helper.h @@ -69,6 +69,22 @@ struct drm_simple_display_pipe_funcs { */ void (*update)(struct drm_simple_display_pipe *pipe, struct drm_plane_state *plane_state); + + /** + * @prepare_fb: + * + * Optional, called by struct &drm_plane_helper_funcs ->prepare_fb . + */ + int (*prepare_fb)(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); + + /** + * @cleanup_fb: + * + * Optional, called by struct &drm_plane_helper_funcs ->cleanup_fb . + */ + void (*cleanup_fb)(struct drm_simple_display_pipe *pipe, + struct drm_plane_state *plane_state); };

/**