drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update

The mtk_plane_enable is just called once by mtk_plane_atomic_update.
So, merge mtk_plane_enable into mtk_plane_atomic_update.

While we are here, also clean up the function a bit by using an fb local
variables.

Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1470279597-60453-6-git-send-email-bibby.hsieh@mediatek.com

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
index 17172ba40959cb937d36558d27853ea93136e735..b3ddb20b2e587a51a808bb4634573a7e6ee4cfd9 100644 (file)
--- a/drivers/gpu/drm/mediatek/mtk_drm_plane.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -30,44 +30,6 @@ static const u32 formats[] = {
        DRM_FORMAT_RGB565,
 };
 
-static void mtk_plane_enable(struct drm_plane *plane,
-                            dma_addr_t addr)
-{
-       struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
-       unsigned int pitch, format;
-       bool enable;
-
-       if (WARN_ON(!plane->state))
-               return;
-
-       enable = state->base.visible;
-
-       if (WARN_ON(enable && !plane->state->fb))
-               return;
-
-       if (plane->state->fb) {
-               pitch = plane->state->fb->pitches[0];
-               format = plane->state->fb->pixel_format;
-       } else {
-               pitch = 0;
-               format = DRM_FORMAT_RGBA8888;
-       }
-
-       addr += (state->base.src.x1 >> 16) * 4;
-       addr += (state->base.src.y1 >> 16) * pitch;
-
-       state->pending.enable = enable;
-       state->pending.pitch = pitch;
-       state->pending.format = format;
-       state->pending.addr = addr;
-       state->pending.x = state->base.dst.x1;
-       state->pending.y = state->base.dst.y1;
-       state->pending.width = drm_rect_width(&state->base.dst);
-       state->pending.height = drm_rect_height(&state->base.dst);
-       wmb(); /* Make sure the above parameters are set before update */
-       state->pending.dirty = true;
-}
-
 static void mtk_plane_reset(struct drm_plane *plane)
 {
        struct mtk_plane_state *state;
@@ -157,16 +119,35 @@ static void mtk_plane_atomic_update(struct drm_plane *plane,
                                    struct drm_plane_state *old_state)
 {
        struct mtk_plane_state *state = to_mtk_plane_state(plane->state);
-       struct drm_crtc *crtc = state->base.crtc;
+       struct drm_crtc *crtc = plane->state->crtc;
+       struct drm_framebuffer *fb = plane->state->fb;
        struct drm_gem_object *gem;
        struct mtk_drm_gem_obj *mtk_gem;
+       unsigned int pitch, format;
+       dma_addr_t addr;
 
-       if (!crtc)
+       if (!crtc || WARN_ON(!fb))
                return;
 
-       gem = mtk_fb_get_gem_obj(state->base.fb);
+       gem = mtk_fb_get_gem_obj(fb);
        mtk_gem = to_mtk_gem_obj(gem);
-       mtk_plane_enable(plane, mtk_gem->dma_addr);
+       addr = mtk_gem->dma_addr;
+       pitch = fb->pitches[0];
+       format = fb->pixel_format;
+
+       addr += (plane->state->src.x1 >> 16) * 4;
+       addr += (plane->state->src.y1 >> 16) * pitch;
+
+       state->pending.enable = true;
+       state->pending.pitch = pitch;
+       state->pending.format = format;
+       state->pending.addr = addr;
+       state->pending.x = plane->state->dst.x1;
+       state->pending.y = plane->state->dst.y1;
+       state->pending.width = drm_rect_width(&plane->state->dst);
+       state->pending.height = drm_rect_height(&plane->state->dst);
+       wmb(); /* Make sure the above parameters are set before update */
+       state->pending.dirty = true;
 }
 
 static void mtk_plane_atomic_disable(struct drm_plane *plane,