--- zzzz-none-000/linux-3.10.107/drivers/gpu/drm/shmobile/shmob_drm_crtc.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/gpu/drm/shmobile/shmob_drm_crtc.c	2021-02-04 17:41:59.000000000 +0000
@@ -1,7 +1,7 @@
 /*
  * shmob_drm_crtc.c  --  SH Mobile DRM CRTCs
  *
- * Copyright (C) 2012 Renesas Corporation
+ * Copyright (C) 2012 Renesas Electronics Corporation
  *
  * Laurent Pinchart (laurent.pinchart@ideasonboard.com)
  *
@@ -19,6 +19,7 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
+#include <drm/drm_plane_helper.h>
 
 #include <video/sh_mobile_meram.h>
 
@@ -37,14 +38,21 @@
  * Clock management
  */
 
-static void shmob_drm_clk_on(struct shmob_drm_device *sdev)
+static int shmob_drm_clk_on(struct shmob_drm_device *sdev)
 {
-	if (sdev->clock)
-		clk_enable(sdev->clock);
+	int ret;
+
+	if (sdev->clock) {
+		ret = clk_prepare_enable(sdev->clock);
+		if (ret < 0)
+			return ret;
+	}
 #if 0
 	if (sdev->meram_dev && sdev->meram_dev->pdev)
 		pm_runtime_get_sync(&sdev->meram_dev->pdev->dev);
 #endif
+
+	return 0;
 }
 
 static void shmob_drm_clk_off(struct shmob_drm_device *sdev)
@@ -54,7 +62,7 @@
 		pm_runtime_put_sync(&sdev->meram_dev->pdev->dev);
 #endif
 	if (sdev->clock)
-		clk_disable(sdev->clock);
+		clk_disable_unprepare(sdev->clock);
 }
 
 /* -----------------------------------------------------------------------------
@@ -161,16 +169,19 @@
 	struct drm_device *dev = sdev->ddev;
 	struct drm_plane *plane;
 	u32 value;
+	int ret;
 
 	if (scrtc->started)
 		return;
 
-	format = shmob_drm_format_info(crtc->fb->pixel_format);
+	format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
 	if (WARN_ON(format == NULL))
 		return;
 
 	/* Enable clocks before accessing the hardware. */
-	shmob_drm_clk_on(sdev);
+	ret = shmob_drm_clk_on(sdev);
+	if (ret < 0)
+		return;
 
 	/* Reset and enable the LCDC. */
 	lcdc_write(sdev, LDCNT2R, lcdc_read(sdev, LDCNT2R) | LDCNT2R_BR);
@@ -237,7 +248,7 @@
 	lcdc_write(sdev, LDDDSR, value);
 
 	/* Setup planes. */
-	list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
+	drm_for_each_legacy_plane(plane, dev) {
 		if (plane->crtc == crtc)
 			shmob_drm_plane_setup(plane);
 	}
@@ -293,7 +304,7 @@
 					int x, int y)
 {
 	struct drm_crtc *crtc = &scrtc->crtc;
-	struct drm_framebuffer *fb = crtc->fb;
+	struct drm_framebuffer *fb = crtc->primary->fb;
 	struct shmob_drm_device *sdev = crtc->dev->dev_private;
 	struct drm_gem_cma_object *gem;
 	unsigned int bpp;
@@ -372,15 +383,15 @@
 	const struct shmob_drm_format_info *format;
 	void *cache;
 
-	format = shmob_drm_format_info(crtc->fb->pixel_format);
+	format = shmob_drm_format_info(crtc->primary->fb->pixel_format);
 	if (format == NULL) {
 		dev_dbg(sdev->dev, "mode_set: unsupported format %08x\n",
-			crtc->fb->pixel_format);
+			crtc->primary->fb->pixel_format);
 		return -EINVAL;
 	}
 
 	scrtc->format = format;
-	scrtc->line_size = crtc->fb->pitches[0];
+	scrtc->line_size = crtc->primary->fb->pitches[0];
 
 	if (sdev->meram) {
 		/* Enable MERAM cache if configured. We need to de-init
@@ -392,7 +403,7 @@
 		}
 
 		cache = sh_mobile_meram_cache_alloc(sdev->meram, mdata,
-						    crtc->fb->pitches[0],
+						    crtc->primary->fb->pitches[0],
 						    adjusted_mode->vdisplay,
 						    format->meram,
 						    &scrtc->line_size);
@@ -465,7 +476,8 @@
 
 static int shmob_drm_crtc_page_flip(struct drm_crtc *crtc,
 				    struct drm_framebuffer *fb,
-				    struct drm_pending_vblank_event *event)
+				    struct drm_pending_vblank_event *event,
+				    uint32_t page_flip_flags)
 {
 	struct shmob_drm_crtc *scrtc = to_shmob_crtc(crtc);
 	struct drm_device *dev = scrtc->crtc.dev;
@@ -478,7 +490,7 @@
 	}
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
-	crtc->fb = fb;
+	crtc->primary->fb = fb;
 	shmob_drm_crtc_update_base(scrtc);
 
 	if (event) {
@@ -663,12 +675,6 @@
 	return 1;
 }
 
-static int shmob_drm_connector_mode_valid(struct drm_connector *connector,
-					  struct drm_display_mode *mode)
-{
-	return MODE_OK;
-}
-
 static struct drm_encoder *
 shmob_drm_connector_best_encoder(struct drm_connector *connector)
 {
@@ -679,7 +685,6 @@
 
 static const struct drm_connector_helper_funcs connector_helper_funcs = {
 	.get_modes = shmob_drm_connector_get_modes,
-	.mode_valid = shmob_drm_connector_mode_valid,
 	.best_encoder = shmob_drm_connector_best_encoder,
 };
 
@@ -688,7 +693,7 @@
 	struct shmob_drm_connector *scon = to_shmob_connector(connector);
 
 	shmob_drm_backlight_exit(scon);
-	drm_sysfs_connector_remove(connector);
+	drm_connector_unregister(connector);
 	drm_connector_cleanup(connector);
 }
 
@@ -722,7 +727,7 @@
 		return ret;
 
 	drm_connector_helper_add(connector, &connector_helper_funcs);
-	ret = drm_sysfs_connector_add(connector);
+	ret = drm_connector_register(connector);
 	if (ret < 0)
 		goto err_cleanup;
 
@@ -745,7 +750,7 @@
 err_backlight:
 	shmob_drm_backlight_exit(&sdev->connector);
 err_sysfs:
-	drm_sysfs_connector_remove(connector);
+	drm_connector_unregister(connector);
 err_cleanup:
 	drm_connector_cleanup(connector);
 	return ret;