drm: Replace drm_format_plane_cpp() with fb->format->cpp[]

Replace drm_format_plane_cpp(fb->pixel_format) with just
fb->format->cpp[]. Avoids the expensive format info lookup.

@@
struct drm_framebuffer *a;
struct drm_framebuffer b;
expression E;
@@
(
- drm_format_plane_cpp(a->pixel_format, E)
+ a->format->cpp[E]
|
- drm_format_plane_cpp(b.pixel_format, E)
+ b.format->cpp[E]
)

@@
struct drm_plane_state *a;
struct drm_plane_state b;
expression E;
@@
(
- drm_format_plane_cpp(a->fb->pixel_format, E)
+ a->fb->format->cpp[E]
|
- drm_format_plane_cpp(b.fb->pixel_format, E)
+ b.fb->format->cpp[E]
)

@@
struct drm_framebuffer *a;
identifier T;
expression E;
@@
  T = a->pixel_format
<+...
- drm_format_plane_cpp(T, E)
+ a->format->cpp[E]
...+>

@@
struct drm_framebuffer b;
identifier T;
expression E;
@@
  T = b.pixel_format
<+...
- drm_format_plane_cpp(T, E)
+ b.format->cpp[E]
...+>

v2: Rerun spatch due to code changes

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751057-18123-1-git-send-email-ville.syrjala@linux.intel.com

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/drm/zte/zx_plane.c b/drivers/gpu/drm/zte/zx_plane.c
index 546eb92a94e8..72d27b0a48b2 100644
--- a/drivers/gpu/drm/zte/zx_plane.c
+++ b/drivers/gpu/drm/zte/zx_plane.c
@@ -159,7 +159,7 @@ static void zx_gl_plane_atomic_update(struct drm_plane *plane,
 	dst_w = plane->state->crtc_w;
 	dst_h = plane->state->crtc_h;
 
-	bpp = drm_format_plane_cpp(format, 0);
+	bpp = fb->format->cpp[0];
 
 	cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
 	paddr = cma_obj->paddr + fb->offsets[0];