drm: Clarify the role of plane_state argument to drm_simple update().

Like the atomic update hook it's wrapping, the plane_state is the old
one, and the new one is in plane->state.  Both msxfb and tinydrm use
it correctly, but I mistook it for the new state in pl111 due to its
naming.

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170320233615.5242-3-eric@anholt.net
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Eric Anholt 2017-03-20 16:36:15 -07:00
parent 031e5896df
commit bcd2ba02a4
2 changed files with 3 additions and 3 deletions

View File

@ -114,7 +114,7 @@ static int drm_simple_kms_plane_atomic_check(struct drm_plane *plane,
}
static void drm_simple_kms_plane_atomic_update(struct drm_plane *plane,
struct drm_plane_state *pstate)
struct drm_plane_state *old_pstate)
{
struct drm_simple_display_pipe *pipe;
@ -122,7 +122,7 @@ static void drm_simple_kms_plane_atomic_update(struct drm_plane *plane,
if (!pipe->funcs || !pipe->funcs->update)
return;
pipe->funcs->update(pipe, pstate);
pipe->funcs->update(pipe, old_pstate);
}
static int drm_simple_kms_plane_prepare_fb(struct drm_plane *plane,

View File

@ -72,7 +72,7 @@ struct drm_simple_display_pipe_funcs {
* the hardware lacks vblank support entirely.
*/
void (*update)(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *plane_state);
struct drm_plane_state *old_plane_state);
/**
* @prepare_fb: