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drm/simple-kms: Add plane-state helpers

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Just like regular plane-state helpers, drivers can use these new
callbacks to create and destroy private plane state.

v2:
	* make duplicate_state interface compatible with
	  struct drm_plane_funcs

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210208115538.6430-2-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2021-02-08 12:55:32 +01:00
parent 1d048afe7e
commit 40f302adbd
2 changed files with 64 additions and 3 deletions
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40
drivers/gpu/drm/drm_simple_kms_helper.c
View File

@ -253,13 +253,47 @@ static const struct drm_plane_helper_funcs drm_simple_kms_plane_helper_funcs = {
.atomic_update = drm_simple_kms_plane_atomic_update,
};
static void drm_simple_kms_plane_reset(struct drm_plane *plane)
{
struct drm_simple_display_pipe *pipe;
pipe = container_of(plane, struct drm_simple_display_pipe, plane);
if (!pipe->funcs || !pipe->funcs->reset_plane)
return drm_atomic_helper_plane_reset(plane);
return pipe->funcs->reset_plane(pipe);
}
static struct drm_plane_state *drm_simple_kms_plane_duplicate_state(struct drm_plane *plane)
{
struct drm_simple_display_pipe *pipe;
pipe = container_of(plane, struct drm_simple_display_pipe, plane);
if (!pipe->funcs || !pipe->funcs->duplicate_plane_state)
return drm_atomic_helper_plane_duplicate_state(plane);
return pipe->funcs->duplicate_plane_state(pipe);
}
static void drm_simple_kms_plane_destroy_state(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->destroy_plane_state)
drm_atomic_helper_plane_destroy_state(plane, state);
else
pipe->funcs->destroy_plane_state(pipe, state);
}
static const struct drm_plane_funcs drm_simple_kms_plane_funcs = {
.update_plane = drm_atomic_helper_update_plane,
.disable_plane = drm_atomic_helper_disable_plane,
.destroy = drm_plane_cleanup,
.reset = drm_atomic_helper_plane_reset,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
.reset = drm_simple_kms_plane_reset,
.atomic_duplicate_state = drm_simple_kms_plane_duplicate_state,
.atomic_destroy_state = drm_simple_kms_plane_destroy_state,
.format_mod_supported = drm_simple_kms_format_mod_supported,
};

27
include/drm/drm_simple_kms_helper.h
View File

@ -149,6 +149,33 @@ struct drm_simple_display_pipe_funcs {
* more details.
*/
void (*disable_vblank)(struct drm_simple_display_pipe *pipe);
/**
* @reset_plane:
*
* Optional, called by &drm_plane_funcs.reset. Please read the
* documentation for the &drm_plane_funcs.reset hook for more details.
*/
void (*reset_plane)(struct drm_simple_display_pipe *pipe);
/**
* @duplicate_plane_state:
*
* Optional, called by &drm_plane_funcs.atomic_duplicate_state. Please
* read the documentation for the &drm_plane_funcs.atomic_duplicate_state
* hook for more details.
*/
struct drm_plane_state * (*duplicate_plane_state)(struct drm_simple_display_pipe *pipe);
/**
* @destroy_plane_state:
*
* Optional, called by &drm_plane_funcs.atomic_destroy_state. Please
* read the documentation for the &drm_plane_funcs.atomic_destroy_state
* hook for more details.
*/
void (*destroy_plane_state)(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state);
};
/**