---

yaml
---
r: 269761
b: refs/heads/master
c: f6b9825
h: refs/heads/master
i:
  269759: 7498832
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 601b44e3db833d28af66d4d6eaf5d353430914d0
+refs/heads/master: f6b98252946496de86bd4e89a8b7ef12ec48d97c

trunk/drivers/gpu/drm/exynos/exynos_drm_crtc.c

@@ -279,6 +279,12 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 			goto out;
 		}
 
+		/*
+		 * the values related to a buffer of the drm framebuffer
+		 * to be applied should be set at here. because these values
+		 * first, is set to shadow registers and then to
+		 * real registers at vsync front porch period.
+		 */
 		exynos_drm_crtc_apply(crtc);
 
 		dev_priv->pageflip_event = true;

trunk/drivers/gpu/drm/exynos/exynos_drm_drv.h

@@ -82,7 +82,6 @@ struct exynos_drm_overlay_ops {
  * @paddr: bus(accessed by dma) physical memory address to this overlay
  *		and this is physically continuous.
  * @vaddr: virtual memory addresss to this overlay.
- * @buf_off: start offset of framebuffer to be displayed.
  * @default_win: a window to be enabled.
  * @color_key: color key on or off.
  * @index_color: if using color key feature then this value would be used
@@ -111,7 +110,6 @@ struct exynos_drm_overlay {
 	unsigned int pitch;
 	dma_addr_t paddr;
 	void __iomem *vaddr;
-	unsigned int buf_off;
 
 	bool default_win;
 	bool color_key;

trunk/drivers/gpu/drm/exynos/exynos_drm_fbdev.c

@@ -393,6 +393,10 @@ int exynos_drm_fbdev_reinit(struct drm_device *dev)
 	if (!private)
 		return -EINVAL;
 
+	/*
+	 * if all sub drivers were unloaded then num_connector is 0
+	 * so at this time, the framebuffers also should be destroyed.
+	 */
 	if (!dev->mode_config.num_connector) {
 		exynos_drm_fbdev_fini(dev);
 		return 0;
@@ -429,7 +433,7 @@ int exynos_drm_fbdev_reinit(struct drm_device *dev)
 		 * re-configure the fb helper. it means that this function
 		 * has been called by the specific drivers.
 		 */
-		return exynos_drm_fbdev_init(dev);
+		ret = exynos_drm_fbdev_init(dev);
 	}
 
 	return ret;