drm: Nuke fb->pixel_format

Replace uses of fb->pixel_format with fb->format->format.
Less duplicated information is a good thing.

Note that coccinelle failed to eliminate the
"/* fourcc format */" comment from drm_framebuffer.h, so I had
to do that part manually.

@@
struct drm_framebuffer *FB;
expression E;
@@
 drm_helper_mode_fill_fb_struct(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 i9xx_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 ironlake_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *FB;
expression E;
@@
 skylake_get_initial_plane_config(...) {
	...
-	FB->pixel_format = E;
	...
 }

@@
struct drm_framebuffer *a;
struct drm_framebuffer b;
@@
(
- a->pixel_format
+ a->format->format
|
- b.pixel_format
+ b.format->format
)

@@
struct drm_plane_state *a;
struct drm_plane_state b;
@@
(
- a->fb->pixel_format
+ a->fb->format->format
|
- b.fb->pixel_format
+ b.fb->format->format
)

@@
struct drm_crtc *CRTC;
@@
(
- CRTC->primary->fb->pixel_format
+ CRTC->primary->fb->format->format
|
- CRTC->primary->state->fb->pixel_format
+ CRTC->primary->state->fb->format->format
)

@@
struct drm_mode_set *set;
@@
(
- set->fb->pixel_format
+ set->fb->format->format
|
- set->crtc->primary->fb->pixel_format
+ set->crtc->primary->fb->format->format
)

@@
@@
 struct drm_framebuffer {
	 ...
-	 uint32_t pixel_format;
	 ...
 };

v2: Fix commit message (Laurent)
    Rebase due to earlier removal of many fb->pixel_format uses,
    including the 'fb->format = drm_format_info(fb->format->format);'
    snafu
v3: Adjusted the semantic patch a bit and regenerated due to code
    changes

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481751175-18463-1-git-send-email-ville.syrjala@linux.intel.com
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index b46c179..ff766c0 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -223,7 +223,7 @@ skl_update_plane(struct drm_plane *drm_plane,
 		PLANE_CTL_PIPE_GAMMA_ENABLE |
 		PLANE_CTL_PIPE_CSC_ENABLE;
 
-	plane_ctl |= skl_plane_ctl_format(fb->pixel_format);
+	plane_ctl |= skl_plane_ctl_format(fb->format->format);
 	plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
 
 	plane_ctl |= skl_plane_ctl_rotation(rotation);
@@ -357,7 +357,7 @@ vlv_update_plane(struct drm_plane *dplane,
 
 	sprctl = SP_ENABLE;
 
-	switch (fb->pixel_format) {
+	switch (fb->format->format) {
 	case DRM_FORMAT_YUYV:
 		sprctl |= SP_FORMAT_YUV422 | SP_YUV_ORDER_YUYV;
 		break;
@@ -443,7 +443,7 @@ vlv_update_plane(struct drm_plane *dplane,
 		sprctl |= SP_SOURCE_KEY;
 
 	if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B)
-		chv_update_csc(intel_plane, fb->pixel_format);
+		chv_update_csc(intel_plane, fb->format->format);
 
 	I915_WRITE(SPSTRIDE(pipe, plane), fb->pitches[0]);
 	I915_WRITE(SPPOS(pipe, plane), (crtc_y << 16) | crtc_x);
@@ -502,7 +502,7 @@ ivb_update_plane(struct drm_plane *plane,
 
 	sprctl = SPRITE_ENABLE;
 
-	switch (fb->pixel_format) {
+	switch (fb->format->format) {
 	case DRM_FORMAT_XBGR8888:
 		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
 		break;
@@ -640,7 +640,7 @@ ilk_update_plane(struct drm_plane *plane,
 
 	dvscntr = DVS_ENABLE;
 
-	switch (fb->pixel_format) {
+	switch (fb->format->format) {
 	case DRM_FORMAT_XBGR8888:
 		dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_XBGR;
 		break;
@@ -866,7 +866,7 @@ intel_check_sprite_plane(struct drm_plane *plane,
 		src_y = src->y1 >> 16;
 		src_h = drm_rect_height(src) >> 16;
 
-		if (format_is_yuv(fb->pixel_format)) {
+		if (format_is_yuv(fb->format->format)) {
 			src_x &= ~1;
 			src_w &= ~1;