drm: Replace crtc fb with primary plane fb (v3)

Now that CRTC's have a primary plane, there's no need to track the
framebuffer in the CRTC.  Replace all references to the CRTC fb with the
primary plane's fb.

This patch was generated by the Coccinelle semantic patching tool using
the following rules:

        @@ struct drm_crtc C; @@
        -   (C).fb
        +   C.primary->fb

        @@ struct drm_crtc *C; @@
        -   (C)->fb
        +   C->primary->fb

v3: Generate patch via coccinelle.  Actual removal of crtc->fb has been
    moved to a subsequent patch.

v2: Fixup several lingering crtc->fb instances that were missed in the
    first patch iteration.  [Rob Clark]

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index d36efc13b16f..d642d4a02134 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -74,7 +74,7 @@ static void set_scanout(struct drm_crtc *crtc, int n)
                 drm_flip_work_queue(&tilcdc_crtc->unref_work, tilcdc_crtc->scanout[n]);
                 drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq);
         }
-        tilcdc_crtc->scanout[n] = crtc->fb;
+        tilcdc_crtc->scanout[n] = crtc->primary->fb;
         drm_framebuffer_reference(tilcdc_crtc->scanout[n]);
         tilcdc_crtc->dirty &= ~stat[n];
         pm_runtime_put_sync(dev->dev);
@@ -84,7 +84,7 @@ static void update_scanout(struct drm_crtc *crtc)
 {
         struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc);
         struct drm_device *dev = crtc->dev;
-        struct drm_framebuffer *fb = crtc->fb;
+        struct drm_framebuffer *fb = crtc->primary->fb;
         struct drm_gem_cma_object *gem;
         unsigned int depth, bpp;
 
@@ -159,7 +159,7 @@ static int tilcdc_crtc_page_flip(struct drm_crtc *crtc,
                 return -EBUSY;
         }
 
-        crtc->fb = fb;
+        crtc->primary->fb = fb;
         tilcdc_crtc->event = event;
         update_scanout(crtc);
 
@@ -339,7 +339,7 @@ static int tilcdc_crtc_mode_set(struct drm_crtc *crtc,
         if (priv->rev == 2) {
                 unsigned int depth, bpp;
 
-                drm_fb_get_bpp_depth(crtc->fb->pixel_format, &depth, &bpp);
+                drm_fb_get_bpp_depth(crtc->primary->fb->pixel_format, &depth, &bpp);
                 switch (bpp) {
                 case 16:
                         break;