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drm/plane: Make ->atomic_update() mandatory 

There is no use-case where it would be useful for drivers not to
implement this function and the transitional plane helpers already
require drivers to provide an implementation.

v2: add new requirement to kerneldoc

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2014-11-25 13:05:12 +01:00
parent 2cb207e413
commit 3cad4b6887
2 changed files with 2 additions and 2 deletions
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2
drivers/gpu/drm/drm_atomic_helper.c
View File

@ -1108,7 +1108,7 @@ void drm_atomic_helper_commit_planes(struct drm_device *dev,
funcs = plane->helper_private;
if (!funcs || !funcs->atomic_update)
if (!funcs)
continue;
old_plane_state = old_state->plane_states[i];

2
include/drm/drm_plane_helper.h
View File

@ -52,7 +52,7 @@ extern int drm_crtc_init(struct drm_device *dev,
* @prepare_fb: prepare a framebuffer for use by the plane
* @cleanup_fb: cleanup a framebuffer when it's no longer used by the plane
* @atomic_check: check that a given atomic state is valid and can be applied
* @atomic_update: apply an atomic state to the plane
* @atomic_update: apply an atomic state to the plane (mandatory)
*
* The helper operations are called by the mid-layer CRTC helper.
*/