Merge tag 'exynos-drm-next-for-v4.19' of...

Merge tag 'exynos-drm-next-for-v4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Cleanups
- Change g2d driver to component based driver
  . g2d driver was last customed sub driver so this patch series
    changes it to component based driver, which also makes gem handling
    to be more simplify.
- Cleanup of Exynos DRM suspend/resume
  . Register exynos drm core suspend/resume functions
    to prepare/complete callbacks of dev_pm_ops instead of suspend/resume
    callbacks to ensure exynos_drm_suspend() is called before any suspend
    callback from the real devices to avoid some issues on boards with
    complex pipelines.
  . Also Add pm_runtime_furce_suspend/resume as SYSTEM_SLEEP_PM_OPS
    to ensure that resources of each devices will be released
    for the system PM suspend/resume cycle.
- Remove local value not used.
Signed-off-by: Dave Airlie <airlied@redhat.com>

Link: https://patchwork.freedesktop.org/patch/msgid/1532505748-10025-1-git-send-email-inki.dae@samsung.com

drivers/gpu/drm/exynos/Makefile

@@ -4,7 +4,7 @@
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
 
 exynosdrm-y := exynos_drm_drv.o exynos_drm_crtc.o exynos_drm_fb.o \
-		exynos_drm_gem.o exynos_drm_core.o exynos_drm_plane.o
+		exynos_drm_gem.o exynos_drm_plane.o
 
 exynosdrm-$(CONFIG_DRM_FBDEV_EMULATION) += exynos_drm_fbdev.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_IOMMU) += exynos_drm_iommu.o

drivers/gpu/drm/exynos/exynos5433_drm_decon.c

@@ -265,7 +265,7 @@ static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
 	unsigned long val;
 
 	val = readl(ctx->addr + DECON_WINCONx(win));
-	val &= ~WINCONx_BPPMODE_MASK;
+	val &= WINCONx_ENWIN_F;
 
 	switch (fb->format->format) {
 	case DRM_FORMAT_XRGB1555:
@@ -356,8 +356,8 @@ static void decon_update_plane(struct exynos_drm_crtc *crtc,
 		writel(val, ctx->addr + DECON_VIDOSDxB(win));
 	}
 
-	val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
-		VIDOSD_Wx_ALPHA_B_F(0x0);
+	val = VIDOSD_Wx_ALPHA_R_F(0xff) | VIDOSD_Wx_ALPHA_G_F(0xff) |
+		VIDOSD_Wx_ALPHA_B_F(0xff);
 	writel(val, ctx->addr + DECON_VIDOSDxC(win));
 
 	val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
@@ -673,6 +673,8 @@ static int exynos5433_decon_resume(struct device *dev)
 static const struct dev_pm_ops exynos5433_decon_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos5433_decon_suspend, exynos5433_decon_resume,
 			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				     pm_runtime_force_resume)
 };
 
 static const struct of_device_id exynos5433_decon_driver_dt_match[] = {

drivers/gpu/drm/exynos/exynos7_drm_decon.c

@@ -832,6 +832,8 @@ static int exynos7_decon_resume(struct device *dev)
 static const struct dev_pm_ops exynos7_decon_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos7_decon_suspend, exynos7_decon_resume,
 			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver decon_driver = {

drivers/gpu/drm/exynos/exynos_dp.c

@@ -16,6 +16,7 @@
 #include <linux/clk.h>
 #include <linux/of_graph.h>
 #include <linux/component.h>
+#include <linux/pm_runtime.h>
 #include <video/of_display_timing.h>
 #include <video/of_videomode.h>
 #include <video/videomode.h>
@@ -278,6 +279,8 @@ static int exynos_dp_resume(struct device *dev)
 
 static const struct dev_pm_ops exynos_dp_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_dp_suspend, exynos_dp_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 static const struct of_device_id exynos_dp_match[] = {

drivers/gpu/drm/exynos/exynos_drm_core.c

-/* exynos_drm_core.c
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Author:
- *	Inki Dae <inki.dae@samsung.com>
- *	Joonyoung Shim <jy0922.shim@samsung.com>
- *	Seung-Woo Kim <sw0312.kim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <drm/drmP.h>
-
-#include "exynos_drm_drv.h"
-#include "exynos_drm_crtc.h"
-
-static LIST_HEAD(exynos_drm_subdrv_list);
-
-int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
-{
-	if (!subdrv)
-		return -EINVAL;
-
-	list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
-
-	return 0;
-}
-
-int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
-{
-	if (!subdrv)
-		return -EINVAL;
-
-	list_del(&subdrv->list);
-
-	return 0;
-}
-
-int exynos_drm_device_subdrv_probe(struct drm_device *dev)
-{
-	struct exynos_drm_subdrv *subdrv, *n;
-	int err;
-
-	if (!dev)
-		return -EINVAL;
-
-	list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
-		if (subdrv->probe) {
-			subdrv->drm_dev = dev;
-
-			/*
-			 * this probe callback would be called by sub driver
-			 * after setting of all resources to this sub driver,
-			 * such as clock, irq and register map are done.
-			 */
-			err = subdrv->probe(dev, subdrv->dev);
-			if (err) {
-				DRM_DEBUG("exynos drm subdrv probe failed.\n");
-				list_del(&subdrv->list);
-				continue;
-			}
-		}
-	}
-
-	return 0;
-}
-
-int exynos_drm_device_subdrv_remove(struct drm_device *dev)
-{
-	struct exynos_drm_subdrv *subdrv;
-
-	if (!dev) {
-		WARN(1, "Unexpected drm device unregister!\n");
-		return -EINVAL;
-	}
-
-	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
-		if (subdrv->remove)
-			subdrv->remove(dev, subdrv->dev);
-	}
-
-	return 0;
-}
-
-int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
-{
-	struct exynos_drm_subdrv *subdrv;
-	int ret;
-
-	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
-		if (subdrv->open) {
-			ret = subdrv->open(dev, subdrv->dev, file);
-			if (ret)
-				goto err;
-		}
-	}
-
-	return 0;
-
-err:
-	list_for_each_entry_continue_reverse(subdrv, &exynos_drm_subdrv_list, list) {
-		if (subdrv->close)
-			subdrv->close(dev, subdrv->dev, file);
-	}
-	return ret;
-}
-
-void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file)
-{
-	struct exynos_drm_subdrv *subdrv;
-
-	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
-		if (subdrv->close)
-			subdrv->close(dev, subdrv->dev, file);
-	}
-}

drivers/gpu/drm/exynos/exynos_drm_drv.c

@@ -55,8 +55,7 @@ static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
 		return -ENOMEM;
 
 	file->driver_priv = file_priv;
-
-	ret = exynos_drm_subdrv_open(dev, file);
+	ret = g2d_open(dev, file);
 	if (ret)
 		goto err_file_priv_free;
 
@@ -70,7 +69,7 @@ static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
 
 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 {
-	exynos_drm_subdrv_close(dev, file);
+	g2d_close(dev, file);
 	kfree(file->driver_priv);
 	file->driver_priv = NULL;
 }
@@ -147,13 +146,12 @@ static struct drm_driver exynos_drm_driver = {
 	.minor	= DRIVER_MINOR,
 };
 
-#ifdef CONFIG_PM_SLEEP
 static int exynos_drm_suspend(struct device *dev)
 {
 	struct drm_device *drm_dev = dev_get_drvdata(dev);
 	struct exynos_drm_private *private;
 
-	if (pm_runtime_suspended(dev) || !drm_dev)
+	if (!drm_dev)
 		return 0;
 
 	private = drm_dev->dev_private;
@@ -170,25 +168,23 @@ static int exynos_drm_suspend(struct device *dev)
 	return 0;
 }
 
-static int exynos_drm_resume(struct device *dev)
+static void exynos_drm_resume(struct device *dev)
 {
 	struct drm_device *drm_dev = dev_get_drvdata(dev);
 	struct exynos_drm_private *private;
 
-	if (pm_runtime_suspended(dev) || !drm_dev)
-		return 0;
+	if (!drm_dev)
+		return;
 
 	private = drm_dev->dev_private;
 	drm_atomic_helper_resume(drm_dev, private->suspend_state);
 	exynos_drm_fbdev_resume(drm_dev);
 	drm_kms_helper_poll_enable(drm_dev);
-
-	return 0;
 }
-#endif
 
 static const struct dev_pm_ops exynos_drm_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_suspend, exynos_drm_resume)
+	.prepare = exynos_drm_suspend,
+	.complete = exynos_drm_resume,
 };
 
 /* forward declaration */
@@ -240,6 +236,7 @@ static struct exynos_drm_driver_info exynos_drm_drivers[] = {
 		DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE
 	}, {
 		DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D),
+		DRM_COMPONENT_DRIVER
 	}, {
 		DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC),
 		DRM_COMPONENT_DRIVER | DRM_FIMC_DEVICE,
@@ -376,11 +373,6 @@ static int exynos_drm_bind(struct device *dev)
 	if (ret)
 		goto err_unbind_all;
 
-	/* Probe non kms sub drivers and virtual display driver. */
-	ret = exynos_drm_device_subdrv_probe(drm);
-	if (ret)
-		goto err_unbind_all;
-
 	drm_mode_config_reset(drm);
 
 	/*
@@ -411,7 +403,6 @@ static int exynos_drm_bind(struct device *dev)
 	exynos_drm_fbdev_fini(drm);
 err_cleanup_poll:
 	drm_kms_helper_poll_fini(drm);
-	exynos_drm_device_subdrv_remove(drm);
 err_unbind_all:
 	component_unbind_all(drm->dev, drm);
 err_mode_config_cleanup:
@@ -420,7 +411,7 @@ static int exynos_drm_bind(struct device *dev)
 err_free_private:
 	kfree(private);
 err_free_drm:
-	drm_dev_unref(drm);
+	drm_dev_put(drm);
 
 	return ret;
 }
@@ -431,8 +422,6 @@ static void exynos_drm_unbind(struct device *dev)
 
 	drm_dev_unregister(drm);
 
-	exynos_drm_device_subdrv_remove(drm);
-
 	exynos_drm_fbdev_fini(drm);
 	drm_kms_helper_poll_fini(drm);
 
@@ -444,7 +433,7 @@ static void exynos_drm_unbind(struct device *dev)
 	drm->dev_private = NULL;
 	dev_set_drvdata(dev, NULL);
 
-	drm_dev_unref(drm);
+	drm_dev_put(drm);
 }
 
 static const struct component_master_ops exynos_drm_ops = {

drivers/gpu/drm/exynos/exynos_drm_drv.h

@@ -179,17 +179,13 @@ static inline void exynos_drm_pipe_clk_enable(struct exynos_drm_crtc *crtc,
 		crtc->pipe_clk->enable(crtc->pipe_clk, enable);
 }
 
-struct exynos_drm_g2d_private {
-	struct device		*dev;
+struct drm_exynos_file_private {
+	/* for g2d api */
 	struct list_head	inuse_cmdlist;
 	struct list_head	event_list;
 	struct list_head	userptr_list;
 };
 
-struct drm_exynos_file_private {
-	struct exynos_drm_g2d_private	*g2d_priv;
-};
-
 /*
  * Exynos drm private structure.
  *
@@ -201,6 +197,7 @@ struct exynos_drm_private {
 	struct drm_fb_helper *fb_helper;
 	struct drm_atomic_state *suspend_state;
 
+	struct device *g2d_dev;
 	struct device *dma_dev;
 	void *mapping;
 
@@ -217,44 +214,6 @@ static inline struct device *to_dma_dev(struct drm_device *dev)
 	return priv->dma_dev;
 }
 
-/*
- * Exynos drm sub driver structure.
- *
- * @list: sub driver has its own list object to register to exynos drm driver.
- * @dev: pointer to device object for subdrv device driver.
- * @drm_dev: pointer to drm_device and this pointer would be set
- *	when sub driver calls exynos_drm_subdrv_register().
- * @probe: this callback would be called by exynos drm driver after
- *     subdrv is registered to it.
- * @remove: this callback is used to release resources created
- *     by probe callback.
- * @open: this would be called with drm device file open.
- * @close: this would be called with drm device file close.
- */
-struct exynos_drm_subdrv {
-	struct list_head list;
-	struct device *dev;
-	struct drm_device *drm_dev;
-
-	int (*probe)(struct drm_device *drm_dev, struct device *dev);
-	void (*remove)(struct drm_device *drm_dev, struct device *dev);
-	int (*open)(struct drm_device *drm_dev, struct device *dev,
-			struct drm_file *file);
-	void (*close)(struct drm_device *drm_dev, struct device *dev,
-			struct drm_file *file);
-};
-
- /* This function would be called by non kms drivers such as g2d and ipp. */
-int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
-
-/* this function removes subdrv list from exynos drm driver */
-int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
-
-int exynos_drm_device_subdrv_probe(struct drm_device *dev);
-int exynos_drm_device_subdrv_remove(struct drm_device *dev);
-int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
-void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
-
 #ifdef CONFIG_DRM_EXYNOS_DPI
 struct drm_encoder *exynos_dpi_probe(struct device *dev);
 int exynos_dpi_remove(struct drm_encoder *encoder);

drivers/gpu/drm/exynos/exynos_drm_dsi.c

@@ -1863,6 +1863,8 @@ static int __maybe_unused exynos_dsi_resume(struct device *dev)
 
 static const struct dev_pm_ops exynos_dsi_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_dsi_suspend, exynos_dsi_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver dsi_driver = {

drivers/gpu/drm/exynos/exynos_drm_fb.c

@@ -101,7 +101,6 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
 {
 	const struct drm_format_info *info = drm_get_format_info(dev, mode_cmd);
 	struct exynos_drm_gem *exynos_gem[MAX_FB_BUFFER];
-	struct drm_gem_object *obj;
 	struct drm_framebuffer *fb;
 	int i;
 	int ret;
@@ -112,15 +111,14 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
 		unsigned long size = height * mode_cmd->pitches[i] +
 				     mode_cmd->offsets[i];
 
-		obj = drm_gem_object_lookup(file_priv, mode_cmd->handles[i]);
-		if (!obj) {
+		exynos_gem[i] = exynos_drm_gem_get(file_priv,
+						   mode_cmd->handles[i]);
+		if (!exynos_gem[i]) {
 			DRM_ERROR("failed to lookup gem object\n");
 			ret = -ENOENT;
 			goto err;
 		}
 
-		exynos_gem[i] = to_exynos_gem(obj);
-
 		if (size > exynos_gem[i]->size) {
 			i++;
 			ret = -EINVAL;
@@ -138,7 +136,7 @@ exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
 
 err:
 	while (i--)
-		drm_gem_object_unreference_unlocked(&exynos_gem[i]->base);
+		exynos_drm_gem_put(exynos_gem[i]);
 
 	return ERR_PTR(ret);
 }

drivers/gpu/drm/exynos/exynos_drm_fimc.c

@@ -470,17 +470,18 @@ static void fimc_src_set_transf(struct fimc_context *ctx, unsigned int rotation)
 static void fimc_set_window(struct fimc_context *ctx,
 			    struct exynos_drm_ipp_buffer *buf)
 {
+	unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
 	u32 cfg, h1, h2, v1, v2;
 
 	/* cropped image */
 	h1 = buf->rect.x;
-	h2 = buf->buf.width - buf->rect.w - buf->rect.x;
+	h2 = real_width - buf->rect.w - buf->rect.x;
 	v1 = buf->rect.y;
 	v2 = buf->buf.height - buf->rect.h - buf->rect.y;
 
 	DRM_DEBUG_KMS("x[%d]y[%d]w[%d]h[%d]hsize[%d]vsize[%d]\n",
 		buf->rect.x, buf->rect.y, buf->rect.w, buf->rect.h,
-		buf->buf.width, buf->buf.height);
+		real_width, buf->buf.height);
 	DRM_DEBUG_KMS("h1[%d]h2[%d]v1[%d]v2[%d]\n", h1, h2, v1, v2);
 
 	/*
@@ -503,12 +504,13 @@ static void fimc_set_window(struct fimc_context *ctx,
 static void fimc_src_set_size(struct fimc_context *ctx,
 			      struct exynos_drm_ipp_buffer *buf)
 {
+	unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
 	u32 cfg;
 
-	DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", buf->buf.width, buf->buf.height);
+	DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", real_width, buf->buf.height);
 
 	/* original size */
-	cfg = (EXYNOS_ORGISIZE_HORIZONTAL(buf->buf.width) |
+	cfg = (EXYNOS_ORGISIZE_HORIZONTAL(real_width) |
 		EXYNOS_ORGISIZE_VERTICAL(buf->buf.height));
 
 	fimc_write(ctx, cfg, EXYNOS_ORGISIZE);
@@ -529,7 +531,7 @@ static void fimc_src_set_size(struct fimc_context *ctx,
 	 * for now, we support only ITU601 8 bit mode
 	 */
 	cfg = (EXYNOS_CISRCFMT_ITU601_8BIT |
-		EXYNOS_CISRCFMT_SOURCEHSIZE(buf->buf.width) |
+		EXYNOS_CISRCFMT_SOURCEHSIZE(real_width) |
 		EXYNOS_CISRCFMT_SOURCEVSIZE(buf->buf.height));
 	fimc_write(ctx, cfg, EXYNOS_CISRCFMT);
 
@@ -842,12 +844,13 @@ static void fimc_set_scaler(struct fimc_context *ctx, struct fimc_scaler *sc)
 static void fimc_dst_set_size(struct fimc_context *ctx,
 			     struct exynos_drm_ipp_buffer *buf)
 {
+	unsigned int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
 	u32 cfg, cfg_ext;
 
-	DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", buf->buf.width, buf->buf.height);
+	DRM_DEBUG_KMS("hsize[%d]vsize[%d]\n", real_width, buf->buf.height);
 
 	/* original size */
-	cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(buf->buf.width) |
+	cfg = (EXYNOS_ORGOSIZE_HORIZONTAL(real_width) |
 		EXYNOS_ORGOSIZE_VERTICAL(buf->buf.height));
 
 	fimc_write(ctx, cfg, EXYNOS_ORGOSIZE);

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -1192,6 +1192,8 @@ static int exynos_fimd_resume(struct device *dev)
 
 static const struct dev_pm_ops exynos_fimd_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_fimd_suspend, exynos_fimd_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver fimd_driver = {

drivers/gpu/drm/exynos/exynos_drm_g2d.c

@@ -9,6 +9,7 @@
 
 #include <linux/kernel.h>
 #include <linux/clk.h>
+#include <linux/component.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -190,7 +191,7 @@ struct g2d_buf_desc {
 struct g2d_buf_info {
 	unsigned int		map_nr;
 	enum g2d_reg_type	reg_types[MAX_REG_TYPE_NR];
-	unsigned long		handles[MAX_REG_TYPE_NR];
+	void			*obj[MAX_REG_TYPE_NR];
 	unsigned int		types[MAX_REG_TYPE_NR];
 	struct g2d_buf_desc	descs[MAX_REG_TYPE_NR];
 };
@@ -237,7 +238,7 @@ struct g2d_data {
 	int				irq;
 	struct workqueue_struct		*g2d_workq;
 	struct work_struct		runqueue_work;
-	struct exynos_drm_subdrv	subdrv;
+	struct drm_device		*drm_dev;
 	unsigned long			flags;
 
 	/* cmdlist */
@@ -268,14 +269,13 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
 {
 	struct device *dev = g2d->dev;
 	struct g2d_cmdlist_node *node = g2d->cmdlist_node;
-	struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
 	int nr;
 	int ret;
 	struct g2d_buf_info *buf_info;
 
 	g2d->cmdlist_dma_attrs = DMA_ATTR_WRITE_COMBINE;
 
-	g2d->cmdlist_pool_virt = dma_alloc_attrs(to_dma_dev(subdrv->drm_dev),
+	g2d->cmdlist_pool_virt = dma_alloc_attrs(to_dma_dev(g2d->drm_dev),
 						G2D_CMDLIST_POOL_SIZE,
 						&g2d->cmdlist_pool, GFP_KERNEL,
 						g2d->cmdlist_dma_attrs);
@@ -308,7 +308,7 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
 	return 0;
 
 err:
-	dma_free_attrs(to_dma_dev(subdrv->drm_dev), G2D_CMDLIST_POOL_SIZE,
+	dma_free_attrs(to_dma_dev(g2d->drm_dev), G2D_CMDLIST_POOL_SIZE,
 			g2d->cmdlist_pool_virt,
 			g2d->cmdlist_pool, g2d->cmdlist_dma_attrs);
 	return ret;
@@ -316,12 +316,10 @@ static int g2d_init_cmdlist(struct g2d_data *g2d)
 
 static void g2d_fini_cmdlist(struct g2d_data *g2d)
 {
-	struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
-
 	kfree(g2d->cmdlist_node);
 
 	if (g2d->cmdlist_pool_virt && g2d->cmdlist_pool) {
-		dma_free_attrs(to_dma_dev(subdrv->drm_dev),
+		dma_free_attrs(to_dma_dev(g2d->drm_dev),
 				G2D_CMDLIST_POOL_SIZE,
 				g2d->cmdlist_pool_virt,
 				g2d->cmdlist_pool, g2d->cmdlist_dma_attrs);
@@ -355,32 +353,31 @@ static void g2d_put_cmdlist(struct g2d_data *g2d, struct g2d_cmdlist_node *node)
 	mutex_unlock(&g2d->cmdlist_mutex);
 }
 
-static void g2d_add_cmdlist_to_inuse(struct exynos_drm_g2d_private *g2d_priv,
+static void g2d_add_cmdlist_to_inuse(struct drm_exynos_file_private *file_priv,
 				     struct g2d_cmdlist_node *node)
 {
 	struct g2d_cmdlist_node *lnode;
 
-	if (list_empty(&g2d_priv->inuse_cmdlist))
+	if (list_empty(&file_priv->inuse_cmdlist))
 		goto add_to_list;
 
 	/* this links to base address of new cmdlist */
-	lnode = list_entry(g2d_priv->inuse_cmdlist.prev,
+	lnode = list_entry(file_priv->inuse_cmdlist.prev,
 				struct g2d_cmdlist_node, list);
 	lnode->cmdlist->data[lnode->cmdlist->last] = node->dma_addr;
 
 add_to_list:
-	list_add_tail(&node->list, &g2d_priv->inuse_cmdlist);
+	list_add_tail(&node->list, &file_priv->inuse_cmdlist);
 
 	if (node->event)
-		list_add_tail(&node->event->base.link, &g2d_priv->event_list);
+		list_add_tail(&node->event->base.link, &file_priv->event_list);
 }
 
-static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev,
-					unsigned long obj,
+static void g2d_userptr_put_dma_addr(struct g2d_data *g2d,
+					void *obj,
 					bool force)
 {
-	struct g2d_cmdlist_userptr *g2d_userptr =
-					(struct g2d_cmdlist_userptr *)obj;
+	struct g2d_cmdlist_userptr *g2d_userptr = obj;
 	struct page **pages;
 
 	if (!obj)
@@ -398,7 +395,7 @@ static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev,
 		return;
 
 out:
-	dma_unmap_sg(to_dma_dev(drm_dev), g2d_userptr->sgt->sgl,
+	dma_unmap_sg(to_dma_dev(g2d->drm_dev), g2d_userptr->sgt->sgl,
 			g2d_userptr->sgt->nents, DMA_BIDIRECTIONAL);
 
 	pages = frame_vector_pages(g2d_userptr->vec);
@@ -419,16 +416,14 @@ static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev,
 	kfree(g2d_userptr);
 }
 
-static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
+static dma_addr_t *g2d_userptr_get_dma_addr(struct g2d_data *g2d,
 					unsigned long userptr,
 					unsigned long size,
 					struct drm_file *filp,
-					unsigned long *obj)
+					void **obj)
 {
 	struct drm_exynos_file_private *file_priv = filp->driver_priv;
-	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
 	struct g2d_cmdlist_userptr *g2d_userptr;
-	struct g2d_data *g2d;
 	struct sg_table	*sgt;
 	unsigned long start, end;
 	unsigned int npages, offset;
@@ -439,10 +434,8 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
 		return ERR_PTR(-EINVAL);
 	}
 
-	g2d = dev_get_drvdata(g2d_priv->dev);
-
 	/* check if userptr already exists in userptr_list. */
-	list_for_each_entry(g2d_userptr, &g2d_priv->userptr_list, list) {
+	list_for_each_entry(g2d_userptr, &file_priv->userptr_list, list) {
 		if (g2d_userptr->userptr == userptr) {
 			/*
 			 * also check size because there could be same address
@@ -450,7 +443,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
 			 */
 			if (g2d_userptr->size == size) {
 				atomic_inc(&g2d_userptr->refcount);
-				*obj = (unsigned long)g2d_userptr;
+				*obj = g2d_userptr;
 
 				return &g2d_userptr->dma_addr;
 			}
@@ -517,7 +510,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
 
 	g2d_userptr->sgt = sgt;
 
-	if (!dma_map_sg(to_dma_dev(drm_dev), sgt->sgl, sgt->nents,
+	if (!dma_map_sg(to_dma_dev(g2d->drm_dev), sgt->sgl, sgt->nents,
 				DMA_BIDIRECTIONAL)) {
 		DRM_ERROR("failed to map sgt with dma region.\n");
 		ret = -ENOMEM;
@@ -527,14 +520,14 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
 	g2d_userptr->dma_addr = sgt->sgl[0].dma_address;
 	g2d_userptr->userptr = userptr;
 
-	list_add_tail(&g2d_userptr->list, &g2d_priv->userptr_list);
+	list_add_tail(&g2d_userptr->list, &file_priv->userptr_list);
 
 	if (g2d->current_pool + (npages << PAGE_SHIFT) < g2d->max_pool) {
 		g2d->current_pool += npages << PAGE_SHIFT;
 		g2d_userptr->in_pool = true;
 	}
 
-	*obj = (unsigned long)g2d_userptr;
+	*obj = g2d_userptr;
 
 	return &g2d_userptr->dma_addr;
 
@@ -556,19 +549,14 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev,
 	return ERR_PTR(ret);
 }
 
-static void g2d_userptr_free_all(struct drm_device *drm_dev,
-					struct g2d_data *g2d,
-					struct drm_file *filp)
+static void g2d_userptr_free_all(struct g2d_data *g2d, struct drm_file *filp)
 {
 	struct drm_exynos_file_private *file_priv = filp->driver_priv;
-	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
 	struct g2d_cmdlist_userptr *g2d_userptr, *n;
 
-	list_for_each_entry_safe(g2d_userptr, n, &g2d_priv->userptr_list, list)
+	list_for_each_entry_safe(g2d_userptr, n, &file_priv->userptr_list, list)
 		if (g2d_userptr->in_pool)
-			g2d_userptr_put_dma_addr(drm_dev,
-						(unsigned long)g2d_userptr,
-						true);
+			g2d_userptr_put_dma_addr(g2d, g2d_userptr, true);
 
 	g2d->current_pool = 0;
 }
@@ -723,26 +711,23 @@ static int g2d_map_cmdlist_gem(struct g2d_data *g2d,
 		buf_desc = &buf_info->descs[reg_type];
 
 		if (buf_info->types[reg_type] == BUF_TYPE_GEM) {
-			unsigned long size;
+			struct exynos_drm_gem *exynos_gem;
 
-			size = exynos_drm_gem_get_size(drm_dev, handle, file);
-			if (!size) {
+			exynos_gem = exynos_drm_gem_get(file, handle);
+			if (!exynos_gem) {
 				ret = -EFAULT;
 				goto err;
 			}
 
-			if (!g2d_check_buf_desc_is_valid(buf_desc, reg_type,
-									size)) {
+			if (!g2d_check_buf_desc_is_valid(buf_desc,
+							 reg_type, exynos_gem->size)) {
+				exynos_drm_gem_put(exynos_gem);
 				ret = -EFAULT;
 				goto err;
 			}
 
-			addr = exynos_drm_gem_get_dma_addr(drm_dev, handle,
-								file);
-			if (IS_ERR(addr)) {
-				ret = -EFAULT;
-				goto err;
-			}
+			addr = &exynos_gem->dma_addr;
+			buf_info->obj[reg_type] = exynos_gem;
 		} else {
 			struct drm_exynos_g2d_userptr g2d_userptr;
 
@@ -758,11 +743,11 @@ static int g2d_map_cmdlist_gem(struct g2d_data *g2d,
 				goto err;
 			}
 
-			addr = g2d_userptr_get_dma_addr(drm_dev,
+			addr = g2d_userptr_get_dma_addr(g2d,
 							g2d_userptr.userptr,
 							g2d_userptr.size,
 							file,
-							&handle);
+							&buf_info->obj[reg_type]);
 			if (IS_ERR(addr)) {
 				ret = -EFAULT;
 				goto err;
@@ -771,7 +756,6 @@ static int g2d_map_cmdlist_gem(struct g2d_data *g2d,
 
 		cmdlist->data[reg_pos + 1] = *addr;
 		buf_info->reg_types[i] = reg_type;
-		buf_info->handles[reg_type] = handle;
 	}
 
 	return 0;
@@ -785,29 +769,26 @@ static void g2d_unmap_cmdlist_gem(struct g2d_data *g2d,
 				  struct g2d_cmdlist_node *node,
 				  struct drm_file *filp)
 {
-	struct exynos_drm_subdrv *subdrv = &g2d->subdrv;
 	struct g2d_buf_info *buf_info = &node->buf_info;
 	int i;
 
 	for (i = 0; i < buf_info->map_nr; i++) {
 		struct g2d_buf_desc *buf_desc;
 		enum g2d_reg_type reg_type;
-		unsigned long handle;
+		void *obj;
 
 		reg_type = buf_info->reg_types[i];
 
 		buf_desc = &buf_info->descs[reg_type];
-		handle = buf_info->handles[reg_type];
+		obj = buf_info->obj[reg_type];
 
 		if (buf_info->types[reg_type] == BUF_TYPE_GEM)
-			exynos_drm_gem_put_dma_addr(subdrv->drm_dev, handle,
-							filp);
+			exynos_drm_gem_put(obj);
 		else
-			g2d_userptr_put_dma_addr(subdrv->drm_dev, handle,
-							false);
+			g2d_userptr_put_dma_addr(g2d, obj, false);
 
 		buf_info->reg_types[i] = REG_TYPE_NONE;
-		buf_info->handles[reg_type] = 0;
+		buf_info->obj[reg_type] = NULL;
 		buf_info->types[reg_type] = 0;
 		memset(buf_desc, 0x00, sizeof(*buf_desc));
 	}
@@ -922,7 +903,7 @@ static void g2d_runqueue_worker(struct work_struct *work)
 
 static void g2d_finish_event(struct g2d_data *g2d, u32 cmdlist_no)
 {
-	struct drm_device *drm_dev = g2d->subdrv.drm_dev;
+	struct drm_device *drm_dev = g2d->drm_dev;
 	struct g2d_runqueue_node *runqueue_node = g2d->runqueue_node;
 	struct drm_exynos_pending_g2d_event *e;
 	struct timespec64 now;
@@ -1031,7 +1012,7 @@ static void g2d_wait_finish(struct g2d_data *g2d, struct drm_file *file)
 	mutex_unlock(&g2d->runqueue_mutex);
 }
 
-static int g2d_check_reg_offset(struct device *dev,
+static int g2d_check_reg_offset(struct g2d_data *g2d,
 				struct g2d_cmdlist_node *node,
 				int nr, bool for_addr)
 {
@@ -1131,7 +1112,7 @@ static int g2d_check_reg_offset(struct device *dev,
 	return 0;
 
 err:
-	dev_err(dev, "Bad register offset: 0x%lx\n", cmdlist->data[index]);
+	dev_err(g2d->dev, "Bad register offset: 0x%lx\n", cmdlist->data[index]);
 	return -EINVAL;
 }
 
@@ -1139,23 +1120,8 @@ static int g2d_check_reg_offset(struct device *dev,
 int exynos_g2d_get_ver_ioctl(struct drm_device *drm_dev, void *data,
 			     struct drm_file *file)
 {
-	struct drm_exynos_file_private *file_priv = file->driver_priv;
-	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
-	struct device *dev;
-	struct g2d_data *g2d;
 	struct drm_exynos_g2d_get_ver *ver = data;
 
-	if (!g2d_priv)
-		return -ENODEV;
-
-	dev = g2d_priv->dev;
-	if (!dev)
-		return -ENODEV;
-
-	g2d = dev_get_drvdata(dev);
-	if (!g2d)
-		return -EFAULT;
-
 	ver->major = G2D_HW_MAJOR_VER;
 	ver->minor = G2D_HW_MINOR_VER;
 
@@ -1166,9 +1132,8 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 				 struct drm_file *file)
 {
 	struct drm_exynos_file_private *file_priv = file->driver_priv;
-	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
-	struct device *dev;
-	struct g2d_data *g2d;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+	struct g2d_data *g2d = dev_get_drvdata(priv->g2d_dev);
 	struct drm_exynos_g2d_set_cmdlist *req = data;
 	struct drm_exynos_g2d_cmd *cmd;
 	struct drm_exynos_pending_g2d_event *e;
@@ -1177,17 +1142,6 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 	int size;
 	int ret;
 
-	if (!g2d_priv)
-		return -ENODEV;
-
-	dev = g2d_priv->dev;
-	if (!dev)
-		return -ENODEV;
-
-	g2d = dev_get_drvdata(dev);
-	if (!g2d)
-		return -EFAULT;
-
 	node = g2d_get_cmdlist(g2d);
 	if (!node)
 		return -ENOMEM;
@@ -1199,7 +1153,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 	 */
 	if (req->cmd_nr > G2D_CMDLIST_DATA_NUM ||
 	    req->cmd_buf_nr > G2D_CMDLIST_DATA_NUM) {
-		dev_err(dev, "number of submitted G2D commands exceeds limit\n");
+		dev_err(g2d->dev, "number of submitted G2D commands exceeds limit\n");
 		return -EINVAL;
 	}
 
@@ -1267,7 +1221,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 	 */
 	size = cmdlist->last + req->cmd_nr * 2 + req->cmd_buf_nr * 2 + 2;
 	if (size > G2D_CMDLIST_DATA_NUM) {
-		dev_err(dev, "cmdlist size is too big\n");
+		dev_err(g2d->dev, "cmdlist size is too big\n");
 		ret = -EINVAL;
 		goto err_free_event;
 	}
@@ -1282,7 +1236,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 	}
 	cmdlist->last += req->cmd_nr * 2;
 
-	ret = g2d_check_reg_offset(dev, node, req->cmd_nr, false);
+	ret = g2d_check_reg_offset(g2d, node, req->cmd_nr, false);
 	if (ret < 0)
 		goto err_free_event;
 
@@ -1301,7 +1255,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 		}
 		cmdlist->last += req->cmd_buf_nr * 2;
 
-		ret = g2d_check_reg_offset(dev, node, req->cmd_buf_nr, true);
+		ret = g2d_check_reg_offset(g2d, node, req->cmd_buf_nr, true);
 		if (ret < 0)
 			goto err_free_event;
 
@@ -1319,7 +1273,7 @@ int exynos_g2d_set_cmdlist_ioctl(struct drm_device *drm_dev, void *data,
 	/* tail */
 	cmdlist->data[cmdlist->last] = 0;
 
-	g2d_add_cmdlist_to_inuse(g2d_priv, node);
+	g2d_add_cmdlist_to_inuse(file_priv, node);
 
 	return 0;
 
@@ -1337,25 +1291,13 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
 			  struct drm_file *file)
 {
 	struct drm_exynos_file_private *file_priv = file->driver_priv;
-	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
-	struct device *dev;
-	struct g2d_data *g2d;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+	struct g2d_data *g2d = dev_get_drvdata(priv->g2d_dev);
 	struct drm_exynos_g2d_exec *req = data;
 	struct g2d_runqueue_node *runqueue_node;
 	struct list_head *run_cmdlist;
 	struct list_head *event_list;
 
-	if (!g2d_priv)
-		return -ENODEV;
-
-	dev = g2d_priv->dev;
-	if (!dev)
-		return -ENODEV;
-
-	g2d = dev_get_drvdata(dev);
-	if (!g2d)
-		return -EFAULT;
-
 	runqueue_node = kmem_cache_alloc(g2d->runqueue_slab, GFP_KERNEL);
 	if (!runqueue_node)
 		return -ENOMEM;
@@ -1367,11 +1309,11 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
 	init_completion(&runqueue_node->complete);
 	runqueue_node->async = req->async;
 
-	list_splice_init(&g2d_priv->inuse_cmdlist, run_cmdlist);
-	list_splice_init(&g2d_priv->event_list, event_list);
+	list_splice_init(&file_priv->inuse_cmdlist, run_cmdlist);
+	list_splice_init(&file_priv->event_list, event_list);
 
 	if (list_empty(run_cmdlist)) {
-		dev_err(dev, "there is no inuse cmdlist\n");
+		dev_err(g2d->dev, "there is no inuse cmdlist\n");
 		kmem_cache_free(g2d->runqueue_slab, runqueue_node);
 		return -EPERM;
 	}
@@ -1395,71 +1337,28 @@ int exynos_g2d_exec_ioctl(struct drm_device *drm_dev, void *data,
 	return 0;
 }
 
-static int g2d_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
-{
-	struct g2d_data *g2d;
-	int ret;
-
-	g2d = dev_get_drvdata(dev);
-	if (!g2d)
-		return -EFAULT;
-
-	/* allocate dma-aware cmdlist buffer. */
-	ret = g2d_init_cmdlist(g2d);
-	if (ret < 0) {
-		dev_err(dev, "cmdlist init failed\n");
-		return ret;
-	}
-
-	ret = drm_iommu_attach_device(drm_dev, dev);
-	if (ret < 0) {
-		dev_err(dev, "failed to enable iommu.\n");
-		g2d_fini_cmdlist(g2d);
-	}
-
-	return ret;
-
-}
-
-static void g2d_subdrv_remove(struct drm_device *drm_dev, struct device *dev)
-{
-	drm_iommu_detach_device(drm_dev, dev);
-}
-
-static int g2d_open(struct drm_device *drm_dev, struct device *dev,
-			struct drm_file *file)
+int g2d_open(struct drm_device *drm_dev, struct drm_file *file)
 {
 	struct drm_exynos_file_private *file_priv = file->driver_priv;
-	struct exynos_drm_g2d_private *g2d_priv;
-
-	g2d_priv = kzalloc(sizeof(*g2d_priv), GFP_KERNEL);
-	if (!g2d_priv)
-		return -ENOMEM;
 
-	g2d_priv->dev = dev;
-	file_priv->g2d_priv = g2d_priv;
-
-	INIT_LIST_HEAD(&g2d_priv->inuse_cmdlist);
-	INIT_LIST_HEAD(&g2d_priv->event_list);
-	INIT_LIST_HEAD(&g2d_priv->userptr_list);
+	INIT_LIST_HEAD(&file_priv->inuse_cmdlist);
+	INIT_LIST_HEAD(&file_priv->event_list);
+	INIT_LIST_HEAD(&file_priv->userptr_list);
 
 	return 0;
 }
 
-static void g2d_close(struct drm_device *drm_dev, struct device *dev,
-			struct drm_file *file)
+void g2d_close(struct drm_device *drm_dev, struct drm_file *file)
 {
 	struct drm_exynos_file_private *file_priv = file->driver_priv;
-	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
 	struct g2d_data *g2d;
 	struct g2d_cmdlist_node *node, *n;
 
-	if (!dev)
+	if (!priv->g2d_dev)
 		return;
 
-	g2d = dev_get_drvdata(dev);
-	if (!g2d)
-		return;
+	g2d = dev_get_drvdata(priv->g2d_dev);
 
 	/* Remove the runqueue nodes that belong to us. */
 	mutex_lock(&g2d->runqueue_mutex);
@@ -1480,24 +1379,70 @@ static void g2d_close(struct drm_device *drm_dev, struct device *dev,
 	 * Properly unmap these buffers here.
 	 */
 	mutex_lock(&g2d->cmdlist_mutex);
-	list_for_each_entry_safe(node, n, &g2d_priv->inuse_cmdlist, list) {
+	list_for_each_entry_safe(node, n, &file_priv->inuse_cmdlist, list) {
 		g2d_unmap_cmdlist_gem(g2d, node, file);
 		list_move_tail(&node->list, &g2d->free_cmdlist);
 	}
 	mutex_unlock(&g2d->cmdlist_mutex);
 
 	/* release all g2d_userptr in pool. */
-	g2d_userptr_free_all(drm_dev, g2d, file);
+	g2d_userptr_free_all(g2d, file);
+}
 
-	kfree(file_priv->g2d_priv);
+static int g2d_bind(struct device *dev, struct device *master, void *data)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+	int ret;
+
+	g2d->drm_dev = drm_dev;
+
+	/* allocate dma-aware cmdlist buffer. */
+	ret = g2d_init_cmdlist(g2d);
+	if (ret < 0) {
+		dev_err(dev, "cmdlist init failed\n");
+		return ret;
+	}
+
+	ret = drm_iommu_attach_device(drm_dev, dev);
+	if (ret < 0) {
+		dev_err(dev, "failed to enable iommu.\n");
+		g2d_fini_cmdlist(g2d);
+		return ret;
+	}
+	priv->g2d_dev = dev;
+
+	dev_info(dev, "The Exynos G2D (ver %d.%d) successfully registered.\n",
+			G2D_HW_MAJOR_VER, G2D_HW_MINOR_VER);
+	return 0;
+}
+
+static void g2d_unbind(struct device *dev, struct device *master, void *data)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
+
+	/* Suspend operation and wait for engine idle. */
+	set_bit(G2D_BIT_SUSPEND_RUNQUEUE, &g2d->flags);
+	g2d_wait_finish(g2d, NULL);
+	priv->g2d_dev = NULL;
+
+	cancel_work_sync(&g2d->runqueue_work);
+	drm_iommu_detach_device(g2d->drm_dev, dev);
 }
 
+static const struct component_ops g2d_component_ops = {
+	.bind	= g2d_bind,
+	.unbind = g2d_unbind,
+};
+
 static int g2d_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct resource *res;
 	struct g2d_data *g2d;
-	struct exynos_drm_subdrv *subdrv;
 	int ret;
 
 	g2d = devm_kzalloc(dev, sizeof(*g2d), GFP_KERNEL);
@@ -1564,22 +1509,12 @@ static int g2d_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, g2d);
 
-	subdrv = &g2d->subdrv;
-	subdrv->dev = dev;
-	subdrv->probe = g2d_subdrv_probe;
-	subdrv->remove = g2d_subdrv_remove;
-	subdrv->open = g2d_open;
-	subdrv->close = g2d_close;
-
-	ret = exynos_drm_subdrv_register(subdrv);
+	ret = component_add(dev, &g2d_component_ops);
 	if (ret < 0) {
 		dev_err(dev, "failed to register drm g2d device\n");
 		goto err_put_clk;
 	}
 
-	dev_info(dev, "The Exynos G2D (ver %d.%d) successfully probed.\n",
-			G2D_HW_MAJOR_VER, G2D_HW_MINOR_VER);
-
 	return 0;
 
 err_put_clk:
@@ -1595,12 +1530,7 @@ static int g2d_remove(struct platform_device *pdev)
 {
 	struct g2d_data *g2d = platform_get_drvdata(pdev);
 
-	/* Suspend operation and wait for engine idle. */
-	set_bit(G2D_BIT_SUSPEND_RUNQUEUE, &g2d->flags);
-	g2d_wait_finish(g2d, NULL);
-
-	cancel_work_sync(&g2d->runqueue_work);
-	exynos_drm_subdrv_unregister(&g2d->subdrv);
+	component_del(&pdev->dev, &g2d_component_ops);
 
 	/* There should be no locking needed here. */
 	g2d_remove_runqueue_nodes(g2d, NULL);

drivers/gpu/drm/exynos/exynos_drm_g2d.h

@@ -14,6 +14,9 @@ extern int exynos_g2d_set_cmdlist_ioctl(struct drm_device *dev, void *data,
 					struct drm_file *file_priv);
 extern int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
 				 struct drm_file *file_priv);
+
+extern int g2d_open(struct drm_device *drm_dev, struct drm_file *file);
+extern void g2d_close(struct drm_device *drm_dev, struct drm_file *file);
 #else
 static inline int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
 					   struct drm_file *file_priv)
@@ -33,4 +36,12 @@ static inline int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
 {
 	return -ENODEV;
 }
+
+int g2d_open(struct drm_device *drm_dev, struct drm_file *file)
+{
+	return 0;
+}
+
+void g2d_close(struct drm_device *drm_dev, struct drm_file *file)
+{ }
 #endif

drivers/gpu/drm/exynos/exynos_drm_gem.c

@@ -143,7 +143,7 @@ static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
 	DRM_DEBUG_KMS("gem handle = 0x%x\n", *handle);
 
 	/* drop reference from allocate - handle holds it now. */
-	drm_gem_object_unreference_unlocked(obj);
+	drm_gem_object_put_unlocked(obj);
 
 	return 0;
 }
@@ -171,26 +171,6 @@ void exynos_drm_gem_destroy(struct exynos_drm_gem *exynos_gem)
 	kfree(exynos_gem);
 }
 
-unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
-						unsigned int gem_handle,
-						struct drm_file *file_priv)
-{
-	struct exynos_drm_gem *exynos_gem;
-	struct drm_gem_object *obj;
-
-	obj = drm_gem_object_lookup(file_priv, gem_handle);
-	if (!obj) {
-		DRM_ERROR("failed to lookup gem object.\n");
-		return 0;
-	}
-
-	exynos_gem = to_exynos_gem(obj);
-
-	drm_gem_object_unreference_unlocked(obj);
-
-	return exynos_gem->size;
-}
-
 static struct exynos_drm_gem *exynos_drm_gem_init(struct drm_device *dev,
 						  unsigned long size)
 {
@@ -299,43 +279,15 @@ int exynos_drm_gem_map_ioctl(struct drm_device *dev, void *data,
 				       &args->offset);
 }
 
-dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev,
-					unsigned int gem_handle,
-					struct drm_file *filp)
-{
-	struct exynos_drm_gem *exynos_gem;
-	struct drm_gem_object *obj;
-
-	obj = drm_gem_object_lookup(filp, gem_handle);
-	if (!obj) {
-		DRM_ERROR("failed to lookup gem object.\n");
-		return ERR_PTR(-EINVAL);
-	}
-
-	exynos_gem = to_exynos_gem(obj);
-
-	return &exynos_gem->dma_addr;
-}
-
-void exynos_drm_gem_put_dma_addr(struct drm_device *dev,
-					unsigned int gem_handle,
-					struct drm_file *filp)
+struct exynos_drm_gem *exynos_drm_gem_get(struct drm_file *filp,
+					  unsigned int gem_handle)
 {
 	struct drm_gem_object *obj;
 
 	obj = drm_gem_object_lookup(filp, gem_handle);
-	if (!obj) {
-		DRM_ERROR("failed to lookup gem object.\n");
-		return;
-	}
-
-	drm_gem_object_unreference_unlocked(obj);
-
-	/*
-	 * decrease obj->refcount one more time because we has already
-	 * increased it at exynos_drm_gem_get_dma_addr().
-	 */
-	drm_gem_object_unreference_unlocked(obj);
+	if (!obj)
+		return NULL;
+	return to_exynos_gem(obj);
 }
 
 static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem *exynos_gem,
@@ -383,7 +335,7 @@ int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
 	args->flags = exynos_gem->flags;
 	args->size = exynos_gem->size;
 
-	drm_gem_object_unreference_unlocked(obj);
+	drm_gem_object_put_unlocked(obj);
 
 	return 0;
 }

drivers/gpu/drm/exynos/exynos_drm_gem.h

@@ -77,32 +77,26 @@ int exynos_drm_gem_map_ioctl(struct drm_device *dev, void *data,
 			     struct drm_file *file_priv);
 
 /*
- * get dma address from gem handle and this function could be used for
+ * get exynos drm object from gem handle, this function could be used for
  * other drivers such as 2d/3d acceleration drivers.
  * with this function call, gem object reference count would be increased.
  */
-dma_addr_t *exynos_drm_gem_get_dma_addr(struct drm_device *dev,
-					unsigned int gem_handle,
-					struct drm_file *filp);
+struct exynos_drm_gem *exynos_drm_gem_get(struct drm_file *filp,
+					  unsigned int gem_handle);
 
 /*
- * put dma address from gem handle and this function could be used for
- * other drivers such as 2d/3d acceleration drivers.
- * with this function call, gem object reference count would be decreased.
+ * put exynos drm object acquired from exynos_drm_gem_get(),
+ * gem object reference count would be decreased.
  */
-void exynos_drm_gem_put_dma_addr(struct drm_device *dev,
-					unsigned int gem_handle,
-					struct drm_file *filp);
+static inline void exynos_drm_gem_put(struct exynos_drm_gem *exynos_gem)
+{
+	drm_gem_object_put_unlocked(&exynos_gem->base);
+}
 
 /* get buffer information to memory region allocated by gem. */
 int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
 				      struct drm_file *file_priv);
 
-/* get buffer size to gem handle. */
-unsigned long exynos_drm_gem_get_size(struct drm_device *dev,
-						unsigned int gem_handle,
-						struct drm_file *file_priv);
-
 /* free gem object. */
 void exynos_drm_gem_free_object(struct drm_gem_object *obj);
 

drivers/gpu/drm/exynos/exynos_drm_gsc.c

@@ -492,21 +492,25 @@ static void gsc_src_set_fmt(struct gsc_context *ctx, u32 fmt)
 			GSC_IN_CHROMA_ORDER_CRCB);
 		break;
 	case DRM_FORMAT_NV21:
+		cfg |= (GSC_IN_CHROMA_ORDER_CRCB | GSC_IN_YUV420_2P);
+		break;
 	case DRM_FORMAT_NV61:
-		cfg |= (GSC_IN_CHROMA_ORDER_CRCB |
-			GSC_IN_YUV420_2P);
+		cfg |= (GSC_IN_CHROMA_ORDER_CRCB | GSC_IN_YUV422_2P);
 		break;
 	case DRM_FORMAT_YUV422:
 		cfg |= GSC_IN_YUV422_3P;
 		break;
 	case DRM_FORMAT_YUV420:
+		cfg |= (GSC_IN_CHROMA_ORDER_CBCR | GSC_IN_YUV420_3P);
+		break;
 	case DRM_FORMAT_YVU420:
-		cfg |= GSC_IN_YUV420_3P;
+		cfg |= (GSC_IN_CHROMA_ORDER_CRCB | GSC_IN_YUV420_3P);
 		break;
 	case DRM_FORMAT_NV12:
+		cfg |= (GSC_IN_CHROMA_ORDER_CBCR | GSC_IN_YUV420_2P);
+		break;
 	case DRM_FORMAT_NV16:
-		cfg |= (GSC_IN_CHROMA_ORDER_CBCR |
-			GSC_IN_YUV420_2P);
+		cfg |= (GSC_IN_CHROMA_ORDER_CBCR | GSC_IN_YUV422_2P);
 		break;
 	}
 
@@ -523,30 +527,30 @@ static void gsc_src_set_transf(struct gsc_context *ctx, unsigned int rotation)
 
 	switch (degree) {
 	case DRM_MODE_ROTATE_0:
-		if (rotation & DRM_MODE_REFLECT_Y)
-			cfg |= GSC_IN_ROT_XFLIP;
 		if (rotation & DRM_MODE_REFLECT_X)
+			cfg |= GSC_IN_ROT_XFLIP;
+		if (rotation & DRM_MODE_REFLECT_Y)
 			cfg |= GSC_IN_ROT_YFLIP;
 		break;
 	case DRM_MODE_ROTATE_90:
 		cfg |= GSC_IN_ROT_90;
-		if (rotation & DRM_MODE_REFLECT_Y)
-			cfg |= GSC_IN_ROT_XFLIP;
 		if (rotation & DRM_MODE_REFLECT_X)
+			cfg |= GSC_IN_ROT_XFLIP;
+		if (rotation & DRM_MODE_REFLECT_Y)
 			cfg |= GSC_IN_ROT_YFLIP;
 		break;
 	case DRM_MODE_ROTATE_180:
 		cfg |= GSC_IN_ROT_180;
-		if (rotation & DRM_MODE_REFLECT_Y)
-			cfg &= ~GSC_IN_ROT_XFLIP;
 		if (rotation & DRM_MODE_REFLECT_X)
+			cfg &= ~GSC_IN_ROT_XFLIP;
+		if (rotation & DRM_MODE_REFLECT_Y)
 			cfg &= ~GSC_IN_ROT_YFLIP;
 		break;
 	case DRM_MODE_ROTATE_270:
 		cfg |= GSC_IN_ROT_270;
-		if (rotation & DRM_MODE_REFLECT_Y)
-			cfg &= ~GSC_IN_ROT_XFLIP;
 		if (rotation & DRM_MODE_REFLECT_X)
+			cfg &= ~GSC_IN_ROT_XFLIP;
+		if (rotation & DRM_MODE_REFLECT_Y)
 			cfg &= ~GSC_IN_ROT_YFLIP;
 		break;
 	}
@@ -577,7 +581,7 @@ static void gsc_src_set_size(struct gsc_context *ctx,
 	cfg &= ~(GSC_SRCIMG_HEIGHT_MASK |
 		GSC_SRCIMG_WIDTH_MASK);
 
-	cfg |= (GSC_SRCIMG_WIDTH(buf->buf.width) |
+	cfg |= (GSC_SRCIMG_WIDTH(buf->buf.pitch[0] / buf->format->cpp[0]) |
 		GSC_SRCIMG_HEIGHT(buf->buf.height));
 
 	gsc_write(cfg, GSC_SRCIMG_SIZE);
@@ -672,18 +676,25 @@ static void gsc_dst_set_fmt(struct gsc_context *ctx, u32 fmt)
 			GSC_OUT_CHROMA_ORDER_CRCB);
 		break;
 	case DRM_FORMAT_NV21:
-	case DRM_FORMAT_NV61:
 		cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV420_2P);
 		break;
+	case DRM_FORMAT_NV61:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV422_2P);
+		break;
 	case DRM_FORMAT_YUV422:
+		cfg |= GSC_OUT_YUV422_3P;
+		break;
 	case DRM_FORMAT_YUV420:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR | GSC_OUT_YUV420_3P);
+		break;
 	case DRM_FORMAT_YVU420:
-		cfg |= GSC_OUT_YUV420_3P;
+		cfg |= (GSC_OUT_CHROMA_ORDER_CRCB | GSC_OUT_YUV420_3P);
 		break;
 	case DRM_FORMAT_NV12:
+		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR | GSC_OUT_YUV420_2P);
+		break;
 	case DRM_FORMAT_NV16:
-		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR |
-			GSC_OUT_YUV420_2P);
+		cfg |= (GSC_OUT_CHROMA_ORDER_CBCR | GSC_OUT_YUV422_2P);
 		break;
 	}
 
@@ -868,7 +879,7 @@ static void gsc_dst_set_size(struct gsc_context *ctx,
 	/* original size */
 	cfg = gsc_read(GSC_DSTIMG_SIZE);
 	cfg &= ~(GSC_DSTIMG_HEIGHT_MASK | GSC_DSTIMG_WIDTH_MASK);
-	cfg |= GSC_DSTIMG_WIDTH(buf->buf.width) |
+	cfg |= GSC_DSTIMG_WIDTH(buf->buf.pitch[0] / buf->format->cpp[0]) |
 	       GSC_DSTIMG_HEIGHT(buf->buf.height);
 	gsc_write(cfg, GSC_DSTIMG_SIZE);
 
@@ -1341,7 +1352,7 @@ static const struct drm_exynos_ipp_limit gsc_5420_limits[] = {
 };
 
 static const struct drm_exynos_ipp_limit gsc_5433_limits[] = {
-	{ IPP_SIZE_LIMIT(BUFFER, .h = { 32, 8191, 2 }, .v = { 16, 8191, 2 }) },
+	{ IPP_SIZE_LIMIT(BUFFER, .h = { 32, 8191, 16 }, .v = { 16, 8191, 2 }) },
 	{ IPP_SIZE_LIMIT(AREA, .h = { 16, 4800, 1 }, .v = { 8, 3344, 1 }) },
 	{ IPP_SIZE_LIMIT(ROTATED, .h = { 32, 2047 }, .v = { 8, 8191 }) },
 	{ IPP_SCALE_LIMIT(.h = { (1 << 16) / 16, (1 << 16) * 8 },

drivers/gpu/drm/exynos/exynos_drm_ipp.c

@@ -345,39 +345,18 @@ static int exynos_drm_ipp_task_setup_buffer(struct exynos_drm_ipp_buffer *buf,
 	int ret = 0;
 	int i;
 
-	/* basic checks */
-	if (buf->buf.width == 0 || buf->buf.height == 0)
-		return -EINVAL;
-	buf->format = drm_format_info(buf->buf.fourcc);
-	for (i = 0; i < buf->format->num_planes; i++) {
-		unsigned int width = (i == 0) ? buf->buf.width :
-			     DIV_ROUND_UP(buf->buf.width, buf->format->hsub);
-
-		if (buf->buf.pitch[i] == 0)
-			buf->buf.pitch[i] = width * buf->format->cpp[i];
-		if (buf->buf.pitch[i] < width * buf->format->cpp[i])
-			return -EINVAL;
-		if (!buf->buf.gem_id[i])
-			return -ENOENT;
-	}
-
-	/* pitch for additional planes must match */
-	if (buf->format->num_planes > 2 &&
-	    buf->buf.pitch[1] != buf->buf.pitch[2])
-		return -EINVAL;
-
 	/* get GEM buffers and check their size */
 	for (i = 0; i < buf->format->num_planes; i++) {
 		unsigned int height = (i == 0) ? buf->buf.height :
 			     DIV_ROUND_UP(buf->buf.height, buf->format->vsub);
 		unsigned long size = height * buf->buf.pitch[i];
-		struct drm_gem_object *obj = drm_gem_object_lookup(filp,
+		struct exynos_drm_gem *gem = exynos_drm_gem_get(filp,
 							    buf->buf.gem_id[i]);
-		if (!obj) {
+		if (!gem) {
 			ret = -ENOENT;
 			goto gem_free;
 		}
-		buf->exynos_gem[i] = to_exynos_gem(obj);
+		buf->exynos_gem[i] = gem;
 
 		if (size + buf->buf.offset[i] > buf->exynos_gem[i]->size) {
 			i++;
@@ -391,7 +370,7 @@ static int exynos_drm_ipp_task_setup_buffer(struct exynos_drm_ipp_buffer *buf,
 	return 0;
 gem_free:
 	while (i--) {
-		drm_gem_object_put_unlocked(&buf->exynos_gem[i]->base);
+		exynos_drm_gem_put(buf->exynos_gem[i]);
 		buf->exynos_gem[i] = NULL;
 	}
 	return ret;
@@ -404,7 +383,7 @@ static void exynos_drm_ipp_task_release_buf(struct exynos_drm_ipp_buffer *buf)
 	if (!buf->exynos_gem[0])
 		return;
 	for (i = 0; i < buf->format->num_planes; i++)
-		drm_gem_object_put_unlocked(&buf->exynos_gem[i]->base);
+		exynos_drm_gem_put(buf->exynos_gem[i]);
 }
 
 static void exynos_drm_ipp_task_free(struct exynos_drm_ipp *ipp,
@@ -428,7 +407,7 @@ enum drm_ipp_size_id {
 	IPP_LIMIT_BUFFER, IPP_LIMIT_AREA, IPP_LIMIT_ROTATED, IPP_LIMIT_MAX
 };
 
-static const enum drm_ipp_size_id limit_id_fallback[IPP_LIMIT_MAX][4] = {
+static const enum drm_exynos_ipp_limit_type limit_id_fallback[IPP_LIMIT_MAX][4] = {
 	[IPP_LIMIT_BUFFER]  = { DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER },
 	[IPP_LIMIT_AREA]    = { DRM_EXYNOS_IPP_LIMIT_SIZE_AREA,
 				DRM_EXYNOS_IPP_LIMIT_SIZE_BUFFER },
@@ -495,12 +474,13 @@ static int exynos_drm_ipp_check_size_limits(struct exynos_drm_ipp_buffer *buf,
 	enum drm_ipp_size_id id = rotate ? IPP_LIMIT_ROTATED : IPP_LIMIT_AREA;
 	struct drm_ipp_limit l;
 	struct drm_exynos_ipp_limit_val *lh = &l.h, *lv = &l.v;
+	int real_width = buf->buf.pitch[0] / buf->format->cpp[0];
 
 	if (!limits)
 		return 0;
 
 	__get_size_limit(limits, num_limits, IPP_LIMIT_BUFFER, &l);
-	if (!__size_limit_check(buf->buf.width, &l.h) ||
+	if (!__size_limit_check(real_width, &l.h) ||
 	    !__size_limit_check(buf->buf.height, &l.v))
 		return -EINVAL;
 
@@ -560,10 +540,62 @@ static int exynos_drm_ipp_check_scale_limits(
 	return 0;
 }
 
+static int exynos_drm_ipp_check_format(struct exynos_drm_ipp_task *task,
+				       struct exynos_drm_ipp_buffer *buf,
+				       struct exynos_drm_ipp_buffer *src,
+				       struct exynos_drm_ipp_buffer *dst,
+				       bool rotate, bool swap)
+{
+	const struct exynos_drm_ipp_formats *fmt;
+	int ret, i;
+
+	fmt = __ipp_format_get(task->ipp, buf->buf.fourcc, buf->buf.modifier,
+			       buf == src ? DRM_EXYNOS_IPP_FORMAT_SOURCE :
+					    DRM_EXYNOS_IPP_FORMAT_DESTINATION);
+	if (!fmt) {
+		DRM_DEBUG_DRIVER("Task %pK: %s format not supported\n", task,
+				 buf == src ? "src" : "dst");
+		return -EINVAL;
+	}
+
+	/* basic checks */
+	if (buf->buf.width == 0 || buf->buf.height == 0)
+		return -EINVAL;
+
+	buf->format = drm_format_info(buf->buf.fourcc);
+	for (i = 0; i < buf->format->num_planes; i++) {
+		unsigned int width = (i == 0) ? buf->buf.width :
+			     DIV_ROUND_UP(buf->buf.width, buf->format->hsub);
+
+		if (buf->buf.pitch[i] == 0)
+			buf->buf.pitch[i] = width * buf->format->cpp[i];
+		if (buf->buf.pitch[i] < width * buf->format->cpp[i])
+			return -EINVAL;
+		if (!buf->buf.gem_id[i])
+			return -ENOENT;
+	}
+
+	/* pitch for additional planes must match */
+	if (buf->format->num_planes > 2 &&
+	    buf->buf.pitch[1] != buf->buf.pitch[2])
+		return -EINVAL;
+
+	/* check driver limits */
+	ret = exynos_drm_ipp_check_size_limits(buf, fmt->limits,
+					       fmt->num_limits,
+					       rotate,
+					       buf == dst ? swap : false);
+	if (ret)
+		return ret;
+	ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect,
+						fmt->limits,
+						fmt->num_limits, swap);
+	return ret;
+}
+
 static int exynos_drm_ipp_task_check(struct exynos_drm_ipp_task *task)
 {
 	struct exynos_drm_ipp *ipp = task->ipp;
-	const struct exynos_drm_ipp_formats *src_fmt, *dst_fmt;
 	struct exynos_drm_ipp_buffer *src = &task->src, *dst = &task->dst;
 	unsigned int rotation = task->transform.rotation;
 	int ret = 0;
@@ -607,37 +639,11 @@ static int exynos_drm_ipp_task_check(struct exynos_drm_ipp_task *task)
 		return -EINVAL;
 	}
 
-	src_fmt = __ipp_format_get(ipp, src->buf.fourcc, src->buf.modifier,
-				   DRM_EXYNOS_IPP_FORMAT_SOURCE);
-	if (!src_fmt) {
-		DRM_DEBUG_DRIVER("Task %pK: src format not supported\n", task);
-		return -EINVAL;
-	}
-	ret = exynos_drm_ipp_check_size_limits(src, src_fmt->limits,
-					       src_fmt->num_limits,
-					       rotate, false);
-	if (ret)
-		return ret;
-	ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect,
-						src_fmt->limits,
-						src_fmt->num_limits, swap);
+	ret = exynos_drm_ipp_check_format(task, src, src, dst, rotate, swap);
 	if (ret)
 		return ret;
 
-	dst_fmt = __ipp_format_get(ipp, dst->buf.fourcc, dst->buf.modifier,
-				   DRM_EXYNOS_IPP_FORMAT_DESTINATION);
-	if (!dst_fmt) {
-		DRM_DEBUG_DRIVER("Task %pK: dst format not supported\n", task);
-		return -EINVAL;
-	}
-	ret = exynos_drm_ipp_check_size_limits(dst, dst_fmt->limits,
-					       dst_fmt->num_limits,
-					       false, swap);
-	if (ret)
-		return ret;
-	ret = exynos_drm_ipp_check_scale_limits(&src->rect, &dst->rect,
-						dst_fmt->limits,
-						dst_fmt->num_limits, swap);
+	ret = exynos_drm_ipp_check_format(task, dst, src, dst, false, swap);
 	if (ret)
 		return ret;
 

drivers/gpu/drm/exynos/exynos_drm_mic.c

@@ -367,6 +367,8 @@ static int exynos_mic_resume(struct device *dev)
 
 static const struct dev_pm_ops exynos_mic_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_mic_suspend, exynos_mic_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 static int exynos_mic_probe(struct platform_device *pdev)

drivers/gpu/drm/exynos/exynos_drm_plane.c

@@ -132,7 +132,7 @@ static void exynos_drm_plane_reset(struct drm_plane *plane)
 	if (plane->state) {
 		exynos_state = to_exynos_plane_state(plane->state);
 		if (exynos_state->base.fb)
-			drm_framebuffer_unreference(exynos_state->base.fb);
+			drm_framebuffer_put(exynos_state->base.fb);
 		kfree(exynos_state);
 		plane->state = NULL;
 	}

drivers/gpu/drm/exynos/exynos_drm_rotator.c

@@ -168,9 +168,9 @@ static void rotator_dst_set_transf(struct rot_context *rot,
 	val &= ~ROT_CONTROL_FLIP_MASK;
 
 	if (rotation & DRM_MODE_REFLECT_X)
-		val |= ROT_CONTROL_FLIP_HORIZONTAL;
-	if (rotation & DRM_MODE_REFLECT_Y)
 		val |= ROT_CONTROL_FLIP_VERTICAL;
+	if (rotation & DRM_MODE_REFLECT_Y)
+		val |= ROT_CONTROL_FLIP_HORIZONTAL;
 
 	val &= ~ROT_CONTROL_ROT_MASK;
 

drivers/gpu/drm/exynos/exynos_drm_scaler.c

@@ -30,6 +30,7 @@
 #define scaler_write(cfg, offset)	writel(cfg, scaler->regs + (offset))
 #define SCALER_MAX_CLK			4
 #define SCALER_AUTOSUSPEND_DELAY	2000
+#define SCALER_RESET_WAIT_RETRIES	100
 
 struct scaler_data {
 	const char	*clk_name[SCALER_MAX_CLK];
@@ -51,9 +52,9 @@ struct scaler_context {
 static u32 scaler_get_format(u32 drm_fmt)
 {
 	switch (drm_fmt) {
-	case DRM_FORMAT_NV21:
-		return SCALER_YUV420_2P_UV;
 	case DRM_FORMAT_NV12:
+		return SCALER_YUV420_2P_UV;
+	case DRM_FORMAT_NV21:
 		return SCALER_YUV420_2P_VU;
 	case DRM_FORMAT_YUV420:
 		return SCALER_YUV420_3P;
@@ -63,15 +64,15 @@ static u32 scaler_get_format(u32 drm_fmt)
 		return SCALER_YUV422_1P_UYVY;
 	case DRM_FORMAT_YVYU:
 		return SCALER_YUV422_1P_YVYU;
-	case DRM_FORMAT_NV61:
-		return SCALER_YUV422_2P_UV;
 	case DRM_FORMAT_NV16:
+		return SCALER_YUV422_2P_UV;
+	case DRM_FORMAT_NV61:
 		return SCALER_YUV422_2P_VU;
 	case DRM_FORMAT_YUV422:
 		return SCALER_YUV422_3P;
-	case DRM_FORMAT_NV42:
-		return SCALER_YUV444_2P_UV;
 	case DRM_FORMAT_NV24:
+		return SCALER_YUV444_2P_UV;
+	case DRM_FORMAT_NV42:
 		return SCALER_YUV444_2P_VU;
 	case DRM_FORMAT_YUV444:
 		return SCALER_YUV444_3P;
@@ -100,6 +101,23 @@ static u32 scaler_get_format(u32 drm_fmt)
 	return 0;
 }
 
+static inline int scaler_reset(struct scaler_context *scaler)
+{
+	int retry = SCALER_RESET_WAIT_RETRIES;
+
+	scaler_write(SCALER_CFG_SOFT_RESET, SCALER_CFG);
+	do {
+		cpu_relax();
+	} while (retry > 1 &&
+		 scaler_read(SCALER_CFG) & SCALER_CFG_SOFT_RESET);
+	do {
+		cpu_relax();
+		scaler_write(1, SCALER_INT_EN);
+	} while (retry > 0 && scaler_read(SCALER_INT_EN) != 1);
+
+	return retry ? 0 : -EIO;
+}
+
 static inline void scaler_enable_int(struct scaler_context *scaler)
 {
 	u32 val;
@@ -354,9 +372,13 @@ static int scaler_commit(struct exynos_drm_ipp *ipp,
 	u32 dst_fmt = scaler_get_format(task->dst.buf.fourcc);
 	struct drm_exynos_ipp_task_rect *dst_pos = &task->dst.rect;
 
-	scaler->task = task;
-
 	pm_runtime_get_sync(scaler->dev);
+	if (scaler_reset(scaler)) {
+		pm_runtime_put(scaler->dev);
+		return -EIO;
+	}
+
+	scaler->task = task;
 
 	scaler_set_src_fmt(scaler, src_fmt);
 	scaler_set_src_base(scaler, &task->src);
@@ -394,7 +416,11 @@ static inline void scaler_disable_int(struct scaler_context *scaler)
 
 static inline u32 scaler_get_int_status(struct scaler_context *scaler)
 {
-	return scaler_read(SCALER_INT_STATUS);
+	u32 val = scaler_read(SCALER_INT_STATUS);
+
+	scaler_write(val, SCALER_INT_STATUS);
+
+	return val;
 }
 
 static inline int scaler_task_done(u32 val)

drivers/gpu/drm/exynos/exynos_hdmi.c

@@ -2093,6 +2093,8 @@ static int __maybe_unused exynos_hdmi_resume(struct device *dev)
 
 static const struct dev_pm_ops exynos_hdmi_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_hdmi_suspend, exynos_hdmi_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver hdmi_driver = {

drivers/gpu/drm/exynos/exynos_mixer.c

@@ -837,8 +837,6 @@ static int mixer_initialize(struct mixer_context *mixer_ctx,
 			struct drm_device *drm_dev)
 {
 	int ret;
-	struct exynos_drm_private *priv;
-	priv = drm_dev->dev_private;
 
 	mixer_ctx->drm_dev = drm_dev;
 
@@ -1271,6 +1269,8 @@ static int __maybe_unused exynos_mixer_resume(struct device *dev)
 
 static const struct dev_pm_ops exynos_mixer_pm_ops = {
 	SET_RUNTIME_PM_OPS(exynos_mixer_suspend, exynos_mixer_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
 };
 
 struct platform_driver mixer_driver = {

drivers/gpu/drm/exynos/regs-gsc.h

@@ -138,6 +138,7 @@
 #define GSC_OUT_YUV420_3P		(3 << 4)
 #define GSC_OUT_YUV422_1P		(4 << 4)
 #define GSC_OUT_YUV422_2P		(5 << 4)
+#define GSC_OUT_YUV422_3P		(6 << 4)
 #define GSC_OUT_YUV444			(7 << 4)
 #define GSC_OUT_TILE_TYPE_MASK		(1 << 2)
 #define GSC_OUT_TILE_C_16x8		(0 << 2)