drm/exynos: unify plane update on exynos_update_plane()

We can safely use the exynos_update_plane() to update the plane
framebuffer for both the overlay and primary planes.

Note that this patch removes a call to manager->ops->commit() in
exynos_drm_crtc_mode_set_commit(). The commit() call is used only by the
fimd driver to set underlying timings and need only in full modeset
operations. For plane update only win_commit is needed.
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_crtc.c

@@ -117,12 +117,9 @@ static int exynos_drm_crtc_mode_set_commit(struct drm_crtc *crtc, int x, int y,
 					  struct drm_framebuffer *old_fb)
 {
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
-	struct exynos_drm_manager *manager = exynos_crtc->manager;
-	struct exynos_drm_plane *exynos_plane = to_exynos_plane(crtc->primary);
 	struct drm_framebuffer *fb = crtc->primary->fb;
 	unsigned int crtc_w;
 	unsigned int crtc_h;
-	int ret;
 
 	/* when framebuffer changing is requested, crtc's dpms should be on */
 	if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) {
@@ -133,18 +130,8 @@ static int exynos_drm_crtc_mode_set_commit(struct drm_crtc *crtc, int x, int y,
 	crtc_w = fb->width - x;
 	crtc_h = fb->height - y;
 
-	ret = exynos_plane_mode_set(crtc->primary, crtc, fb, 0, 0,
+	return exynos_update_plane(crtc->primary, crtc, fb, 0, 0,
 				   crtc_w, crtc_h, x, y, crtc_w, crtc_h);
-	if (ret)
-		return ret;
-
-	if (manager->ops->win_commit)
-		manager->ops->win_commit(manager, exynos_plane->zpos);
-
-	if (manager->ops->commit)
-		manager->ops->commit(manager);
-
-	return 0;
 }
 
 static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,

drivers/gpu/drm/exynos/exynos_drm_plane.c

@@ -165,7 +165,7 @@ void exynos_plane_dpms(struct drm_plane *plane, int mode)
 	}
 }
 
-static int
+int
 exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 		     struct drm_framebuffer *fb, int crtc_x, int crtc_y,
 		     unsigned int crtc_w, unsigned int crtc_h,

drivers/gpu/drm/exynos/exynos_drm_plane.h

@@ -14,6 +14,11 @@ int exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc,
 			  unsigned int crtc_w, unsigned int crtc_h,
 			  uint32_t src_x, uint32_t src_y,
 			  uint32_t src_w, uint32_t src_h);
+int exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+			struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+			unsigned int crtc_w, unsigned int crtc_h,
+			uint32_t src_x, uint32_t src_y,
+			uint32_t src_w, uint32_t src_h);
 void exynos_plane_dpms(struct drm_plane *plane, int mode);
 struct drm_plane *exynos_plane_init(struct drm_device *dev,
 				    unsigned long possible_crtcs,