Merge branch 'exynos-drm-next' of git://git.infradead.org/users/kmpark/linux-samsung into drm-core-next

* 'exynos-drm-next' of git://git.infradead.org/users/kmpark/linux-samsung:
  drm/exynos: add G2D driver
  drm/exynos: added vp scaling feature for hdmi
  drm/exynos: added source size to overlay structure
  drm/exynos: add additional display mode for hdmi
  drm/exynos: enable dvi mode for dvi monitor
  drm/exynos: fixed wrong pageflip finish event for interlace mode
  drm/exynos: add PM functions for hdmi and mixer
  drm/exynos: add dpms for hdmi
  drm/exynos: use threaded irq for hdmi hotplug
  drm/exynos: use platform_get_irq_byname for hdmi
  drm/exynos: cleanup for hdmi platform data
  drm/exynos: added a feature to get gem buffer information.
  drm/exynos: added drm prime feature.
  drm/exynos: added cache attribute support for gem.
  vgaarb: Provide dummy default device functions

19 files changed, 1975 insertions, 431 deletions

diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 3343ac437fe5..7f5096763b7d 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -10,6 +10,12 @@ config DRM_EXYNOS
 	  Choose this option if you have a Samsung SoC EXYNOS chipset.
 	  If M is selected the module will be called exynosdrm.
 
+config DRM_EXYNOS_DMABUF
+	bool "EXYNOS DRM DMABUF"
+	depends on DRM_EXYNOS
+	help
+	  Choose this option if you want to use DMABUF feature for DRM.
+
 config DRM_EXYNOS_FIMD
 	bool "Exynos DRM FIMD"
 	depends on DRM_EXYNOS && !FB_S3C
@@ -27,3 +33,9 @@ config DRM_EXYNOS_VIDI
 	depends on DRM_EXYNOS
 	help
 	  Choose this option if you want to use Exynos VIDI for DRM.
+
+config DRM_EXYNOS_G2D
+	bool "Exynos DRM G2D"
+	depends on DRM_EXYNOS
+	help
+	  Choose this option if you want to use Exynos G2D for DRM.
diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
index 9e0bff8badf9..eb651ca8e2a8 100644
--- a/drivers/gpu/drm/exynos/Makefile
+++ b/drivers/gpu/drm/exynos/Makefile
@@ -8,10 +8,12 @@ exynosdrm-y := exynos_drm_drv.o exynos_drm_encoder.o exynos_drm_connector.o \
 		exynos_drm_buf.o exynos_drm_gem.o exynos_drm_core.o \
 		exynos_drm_plane.o
 
+exynosdrm-$(CONFIG_DRM_EXYNOS_DMABUF) += exynos_drm_dmabuf.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_FIMD)	+= exynos_drm_fimd.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI)	+= exynos_hdmi.o exynos_mixer.o \
 					   exynos_ddc.o exynos_hdmiphy.o \
 					   exynos_drm_hdmi.o
 exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI)	+= exynos_drm_vidi.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_G2D)	+= exynos_drm_g2d.o
 
 obj-$(CONFIG_DRM_EXYNOS)		+= exynosdrm.o
diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c
index de8d2090bce3..b3cb0a69fbf2 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_buf.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c
@@ -35,7 +35,7 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
 		unsigned int flags, struct exynos_drm_gem_buf *buf)
 {
 	dma_addr_t start_addr;
-	unsigned int npages, page_size, i = 0;
+	unsigned int npages, i = 0;
 	struct scatterlist *sgl;
 	int ret = 0;
 
@@ -53,13 +53,13 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
 
 	if (buf->size >= SZ_1M) {
 		npages = buf->size >> SECTION_SHIFT;
-		page_size = SECTION_SIZE;
+		buf->page_size = SECTION_SIZE;
 	} else if (buf->size >= SZ_64K) {
 		npages = buf->size >> 16;
-		page_size = SZ_64K;
+		buf->page_size = SZ_64K;
 	} else {
 		npages = buf->size >> PAGE_SHIFT;
-		page_size = PAGE_SIZE;
+		buf->page_size = PAGE_SIZE;
 	}
 
 	buf->sgt = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
@@ -96,9 +96,9 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
 
 	while (i < npages) {
 		buf->pages[i] = phys_to_page(start_addr);
-		sg_set_page(sgl, buf->pages[i], page_size, 0);
+		sg_set_page(sgl, buf->pages[i], buf->page_size, 0);
 		sg_dma_address(sgl) = start_addr;
-		start_addr += page_size;
+		start_addr += buf->page_size;
 		sgl = sg_next(sgl);
 		i++;
 	}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 3486ffed0bf0..4afb625128d7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -105,6 +105,8 @@ int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay,
 	overlay->fb_y = pos->fb_y;
 	overlay->fb_width = fb->width;
 	overlay->fb_height = fb->height;
+	overlay->src_width = pos->src_w;
+	overlay->src_height = pos->src_h;
 	overlay->bpp = fb->bits_per_pixel;
 	overlay->pitch = fb->pitches[0];
 	overlay->pixel_format = fb->pixel_format;
@@ -153,6 +155,8 @@ static int exynos_drm_crtc_update(struct drm_crtc *crtc)
 	pos.crtc_y = 0;
 	pos.crtc_w = fb->width - crtc->x;
 	pos.crtc_h = fb->height - crtc->y;
+	pos.src_w = pos.crtc_w;
+	pos.src_h = pos.crtc_h;
 
 	return exynos_drm_overlay_update(overlay, crtc->fb, mode, &pos);
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
index 25f72a62cb88..16b8e2195a0d 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
@@ -42,6 +42,8 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc);
  *	- the unit is screen coordinates.
  * @fb_y: offset y on a framebuffer to be displayed
  *	- the unit is screen coordinates.
+ * @src_w: width of source area to be displayed from a framebuffer.
+ * @src_h: height of source area to be displayed from a framebuffer.
  * @crtc_x: offset x on hardware screen.
  * @crtc_y: offset y on hardware screen.
  * @crtc_w: width of hardware screen.
@@ -50,6 +52,8 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc);
 struct exynos_drm_crtc_pos {
 	unsigned int fb_x;
 	unsigned int fb_y;
+	unsigned int src_w;
+	unsigned int src_h;
 	unsigned int crtc_x;
 	unsigned int crtc_y;
 	unsigned int crtc_w;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
new file mode 100644
index 000000000000..274909271c36
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c
@@ -0,0 +1,272 @@
+/* exynos_drm_dmabuf.c
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
+
+#include <linux/dma-buf.h>
+
+static struct sg_table *exynos_pages_to_sg(struct page **pages, int nr_pages,
+		unsigned int page_size)
+{
+	struct sg_table *sgt = NULL;
+	struct scatterlist *sgl;
+	int i, ret;
+
+	sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
+	if (!sgt)
+		goto out;
+
+	ret = sg_alloc_table(sgt, nr_pages, GFP_KERNEL);
+	if (ret)
+		goto err_free_sgt;
+
+	if (page_size < PAGE_SIZE)
+		page_size = PAGE_SIZE;
+
+	for_each_sg(sgt->sgl, sgl, nr_pages, i)
+		sg_set_page(sgl, pages[i], page_size, 0);
+
+	return sgt;
+
+err_free_sgt:
+	kfree(sgt);
+	sgt = NULL;
+out:
+	return NULL;
+}
+
+static struct sg_table *
+		exynos_gem_map_dma_buf(struct dma_buf_attachment *attach,
+					enum dma_data_direction dir)
+{
+	struct exynos_drm_gem_obj *gem_obj = attach->dmabuf->priv;
+	struct drm_device *dev = gem_obj->base.dev;
+	struct exynos_drm_gem_buf *buf;
+	struct sg_table *sgt = NULL;
+	unsigned int npages;
+	int nents;
+
+	DRM_DEBUG_PRIME("%s\n", __FILE__);
+
+	mutex_lock(&dev->struct_mutex);
+
+	buf = gem_obj->buffer;
+
+	/* there should always be pages allocated. */
+	if (!buf->pages) {
+		DRM_ERROR("pages is null.\n");
+		goto err_unlock;
+	}
+
+	npages = buf->size / buf->page_size;
+
+	sgt = exynos_pages_to_sg(buf->pages, npages, buf->page_size);
+	nents = dma_map_sg(attach->dev, sgt->sgl, sgt->nents, dir);
+
+	DRM_DEBUG_PRIME("npages = %d buffer size = 0x%lx page_size = 0x%lx\n",
+			npages, buf->size, buf->page_size);
+
+err_unlock:
+	mutex_unlock(&dev->struct_mutex);
+	return sgt;
+}
+
+static void exynos_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
+						struct sg_table *sgt,
+						enum dma_data_direction dir)
+{
+	dma_unmap_sg(attach->dev, sgt->sgl, sgt->nents, dir);
+	sg_free_table(sgt);
+	kfree(sgt);
+	sgt = NULL;
+}
+
+static void exynos_dmabuf_release(struct dma_buf *dmabuf)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj = dmabuf->priv;
+
+	DRM_DEBUG_PRIME("%s\n", __FILE__);
+
+	/*
+	 * exynos_dmabuf_release() call means that file object's
+	 * f_count is 0 and it calls drm_gem_object_handle_unreference()
+	 * to drop the references that these values had been increased
+	 * at drm_prime_handle_to_fd()
+	 */
+	if (exynos_gem_obj->base.export_dma_buf == dmabuf) {
+		exynos_gem_obj->base.export_dma_buf = NULL;
+
+		/*
+		 * drop this gem object refcount to release allocated buffer
+		 * and resources.
+		 */
+		drm_gem_object_unreference_unlocked(&exynos_gem_obj->base);
+	}
+}
+
+static void *exynos_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
+						unsigned long page_num)
+{
+	/* TODO */
+
+	return NULL;
+}
+
+static void exynos_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
+						unsigned long page_num,
+						void *addr)
+{
+	/* TODO */
+}
+
+static void *exynos_gem_dmabuf_kmap(struct dma_buf *dma_buf,
+					unsigned long page_num)
+{
+	/* TODO */
+
+	return NULL;
+}
+
+static void exynos_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
+					unsigned long page_num, void *addr)
+{
+	/* TODO */
+}
+
+static struct dma_buf_ops exynos_dmabuf_ops = {
+	.map_dma_buf		= exynos_gem_map_dma_buf,
+	.unmap_dma_buf		= exynos_gem_unmap_dma_buf,
+	.kmap			= exynos_gem_dmabuf_kmap,
+	.kmap_atomic		= exynos_gem_dmabuf_kmap_atomic,
+	.kunmap			= exynos_gem_dmabuf_kunmap,
+	.kunmap_atomic		= exynos_gem_dmabuf_kunmap_atomic,
+	.release		= exynos_dmabuf_release,
+};
+
+struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev,
+				struct drm_gem_object *obj, int flags)
+{
+	struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	return dma_buf_export(exynos_gem_obj, &exynos_dmabuf_ops,
+				exynos_gem_obj->base.size, 0600);
+}
+
+struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
+				struct dma_buf *dma_buf)
+{
+	struct dma_buf_attachment *attach;
+	struct sg_table *sgt;
+	struct scatterlist *sgl;
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct exynos_drm_gem_buf *buffer;
+	struct page *page;
+	int ret, i = 0;
+
+	DRM_DEBUG_PRIME("%s\n", __FILE__);
+
+	/* is this one of own objects? */
+	if (dma_buf->ops == &exynos_dmabuf_ops) {
+		struct drm_gem_object *obj;
+
+		exynos_gem_obj = dma_buf->priv;
+		obj = &exynos_gem_obj->base;
+
+		/* is it from our device? */
+		if (obj->dev == drm_dev) {
+			drm_gem_object_reference(obj);
+			return obj;
+		}
+	}
+
+	attach = dma_buf_attach(dma_buf, drm_dev->dev);
+	if (IS_ERR(attach))
+		return ERR_PTR(-EINVAL);
+
+
+	sgt = dma_buf_map_attachment(attach, DMA_BIDIRECTIONAL);
+	if (IS_ERR(sgt)) {
+		ret = PTR_ERR(sgt);
+		goto err_buf_detach;
+	}
+
+	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
+	if (!buffer) {
+		DRM_ERROR("failed to allocate exynos_drm_gem_buf.\n");
+		ret = -ENOMEM;
+		goto err_unmap_attach;
+	}
+
+	buffer->pages = kzalloc(sizeof(*page) * sgt->nents, GFP_KERNEL);
+	if (!buffer->pages) {
+		DRM_ERROR("failed to allocate pages.\n");
+		ret = -ENOMEM;
+		goto err_free_buffer;
+	}
+
+	exynos_gem_obj = exynos_drm_gem_init(drm_dev, dma_buf->size);
+	if (!exynos_gem_obj) {
+		ret = -ENOMEM;
+		goto err_free_pages;
+	}
+
+	sgl = sgt->sgl;
+	buffer->dma_addr = sg_dma_address(sgl);
+
+	while (i < sgt->nents) {
+		buffer->pages[i] = sg_page(sgl);
+		buffer->size += sg_dma_len(sgl);
+		sgl = sg_next(sgl);
+		i++;
+	}
+
+	exynos_gem_obj->buffer = buffer;
+	buffer->sgt = sgt;
+	exynos_gem_obj->base.import_attach = attach;
+
+	DRM_DEBUG_PRIME("dma_addr = 0x%x, size = 0x%lx\n", buffer->dma_addr,
+								buffer->size);
+
+	return &exynos_gem_obj->base;
+
+err_free_pages:
+	kfree(buffer->pages);
+	buffer->pages = NULL;
+err_free_buffer:
+	kfree(buffer);
+	buffer = NULL;
+err_unmap_attach:
+	dma_buf_unmap_attachment(attach, sgt, DMA_BIDIRECTIONAL);
+err_buf_detach:
+	dma_buf_detach(dma_buf, attach);
+	return ERR_PTR(ret);
+}
+
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_DESCRIPTION("Samsung SoC DRM DMABUF Module");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h
new file mode 100644
index 000000000000..662a8f98ccdb
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.h
@@ -0,0 +1,39 @@
+/* exynos_drm_dmabuf.h
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * Author: Inki Dae <inki.dae@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _EXYNOS_DRM_DMABUF_H_
+#define _EXYNOS_DRM_DMABUF_H_
+
+#ifdef CONFIG_DRM_EXYNOS_DMABUF
+struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev,
+				struct drm_gem_object *obj, int flags);
+
+struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev,
+						struct dma_buf *dma_buf);
+#else
+#define exynos_dmabuf_prime_export		NULL
+#define exynos_dmabuf_prime_import		NULL
+#endif
+#endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 67a67b0839af..420953197d0a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -39,6 +39,8 @@
 #include "exynos_drm_gem.h"
 #include "exynos_drm_plane.h"
 #include "exynos_drm_vidi.h"
+#include "exynos_drm_dmabuf.h"
+#include "exynos_drm_g2d.h"
 
 #define DRIVER_NAME	"exynos"
 #define DRIVER_DESC	"Samsung SoC DRM"
@@ -147,8 +149,17 @@ static int exynos_drm_unload(struct drm_device *dev)
 
 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
 {
+	struct drm_exynos_file_private *file_priv;
+
 	DRM_DEBUG_DRIVER("%s\n", __FILE__);
 
+	file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
+	if (!file_priv)
+		return -ENOMEM;
+
+	drm_prime_init_file_private(&file->prime);
+	file->driver_priv = file_priv;
+
 	return exynos_drm_subdrv_open(dev, file);
 }
 
@@ -170,6 +181,7 @@ static void exynos_drm_preclose(struct drm_device *dev,
 			e->base.destroy(&e->base);
 		}
 	}
+	drm_prime_destroy_file_private(&file->prime);
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
 	exynos_drm_subdrv_close(dev, file);
@@ -207,10 +219,18 @@ static struct drm_ioctl_desc exynos_ioctls[] = {
 			DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
 			exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
+			exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(EXYNOS_PLANE_SET_ZPOS, exynos_plane_set_zpos_ioctl,
 			DRM_UNLOCKED | DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
 			vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
+			exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
+			exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
+			exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
 };
 
 static const struct file_operations exynos_drm_driver_fops = {
@@ -225,7 +245,7 @@ static const struct file_operations exynos_drm_driver_fops = {
 
 static struct drm_driver exynos_drm_driver = {
 	.driver_features	= DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM |
-				  DRIVER_MODESET | DRIVER_GEM,
+				  DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
 	.load			= exynos_drm_load,
 	.unload			= exynos_drm_unload,
 	.open			= exynos_drm_open,
@@ -241,6 +261,10 @@ static struct drm_driver exynos_drm_driver = {
 	.dumb_create		= exynos_drm_gem_dumb_create,
 	.dumb_map_offset	= exynos_drm_gem_dumb_map_offset,
 	.dumb_destroy		= exynos_drm_gem_dumb_destroy,
+	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd,
+	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
+	.gem_prime_export	= exynos_dmabuf_prime_export,
+	.gem_prime_import	= exynos_dmabuf_prime_import,
 	.ioctls			= exynos_ioctls,
 	.fops			= &exynos_drm_driver_fops,
 	.name	= DRIVER_NAME,
@@ -307,6 +331,12 @@ static int __init exynos_drm_init(void)
 		goto out_vidi;
 #endif
 
+#ifdef CONFIG_DRM_EXYNOS_G2D
+	ret = platform_driver_register(&g2d_driver);
+	if (ret < 0)
+		goto out_g2d;
+#endif
+
 	ret = platform_driver_register(&exynos_drm_platform_driver);
 	if (ret < 0)
 		goto out;
@@ -314,6 +344,11 @@ static int __init exynos_drm_init(void)
 	return 0;
 
 out:
+#ifdef CONFIG_DRM_EXYNOS_G2D
+	platform_driver_unregister(&g2d_driver);
+out_g2d:
+#endif
+
 #ifdef CONFIG_DRM_EXYNOS_VIDI
 out_vidi:
 	platform_driver_unregister(&vidi_driver);
@@ -341,6 +376,10 @@ static void __exit exynos_drm_exit(void)
 
 	platform_driver_unregister(&exynos_drm_platform_driver);
 
+#ifdef CONFIG_DRM_EXYNOS_G2D
+	platform_driver_unregister(&g2d_driver);
+#endif
+
 #ifdef CONFIG_DRM_EXYNOS_HDMI
 	platform_driver_unregister(&exynos_drm_common_hdmi_driver);
 	platform_driver_unregister(&mixer_driver);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 1d814175cd49..c82c90c443e7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -77,6 +77,8 @@ struct exynos_drm_overlay_ops {
  *	- the unit is screen coordinates.
  * @fb_width: width of a framebuffer.
  * @fb_height: height of a framebuffer.
+ * @src_width: width of a partial image to be displayed from framebuffer.
+ * @src_height: height of a partial image to be displayed from framebuffer.
  * @crtc_x: offset x on hardware screen.
  * @crtc_y: offset y on hardware screen.
  * @crtc_width: window width to be displayed (hardware screen).
@@ -108,6 +110,8 @@ struct exynos_drm_overlay {
 	unsigned int fb_y;
 	unsigned int fb_width;
 	unsigned int fb_height;
+	unsigned int src_width;
+	unsigned int src_height;
 	unsigned int crtc_x;
 	unsigned int crtc_y;
 	unsigned int crtc_width;
@@ -205,6 +209,18 @@ struct exynos_drm_manager {
 	struct exynos_drm_display_ops *display_ops;
 };
 
+struct exynos_drm_g2d_private {
+	struct device		*dev;
+	struct list_head	inuse_cmdlist;
+	struct list_head	event_list;
+	struct list_head	gem_list;
+	unsigned int		gem_nr;
+};
+
+struct drm_exynos_file_private {
+	struct exynos_drm_g2d_private	*g2d_priv;
+};
+
 /*
  * Exynos drm private structure.
  */
@@ -287,4 +303,5 @@ extern struct platform_driver hdmi_driver;
 extern struct platform_driver mixer_driver;
 extern struct platform_driver exynos_drm_common_hdmi_driver;
 extern struct platform_driver vidi_driver;
+extern struct platform_driver g2d_driver;
 #endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
new file mode 100644
index 000000000000..d2d88f22a037
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -0,0 +1,937 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundationr
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+
+#include "drmP.h"
+#include "exynos_drm.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_gem.h"
+
+#define G2D_HW_MAJOR_VER		4
+#define G2D_HW_MINOR_VER		1
+
+/* vaild register range set from user: 0x0104 ~ 0x0880 */
+#define G2D_VALID_START			0x0104
+#define G2D_VALID_END			0x0880
+
+/* general registers */
+#define G2D_SOFT_RESET			0x0000
+#define G2D_INTEN			0x0004
+#define G2D_INTC_PEND			0x000C
+#define G2D_DMA_SFR_BASE_ADDR		0x0080
+#define G2D_DMA_COMMAND			0x0084
+#define G2D_DMA_STATUS			0x008C
+#define G2D_DMA_HOLD_CMD		0x0090
+
+/* command registers */
+#define G2D_BITBLT_START		0x0100
+
+/* registers for base address */
+#define G2D_SRC_BASE_ADDR		0x0304
+#define G2D_SRC_PLANE2_BASE_ADDR	0x0318
+#define G2D_DST_BASE_ADDR		0x0404
+#define G2D_DST_PLANE2_BASE_ADDR	0x0418
+#define G2D_PAT_BASE_ADDR		0x0500
+#define G2D_MSK_BASE_ADDR		0x0520
+
+/* G2D_SOFT_RESET */
+#define G2D_SFRCLEAR			(1 << 1)
+#define G2D_R				(1 << 0)
+
+/* G2D_INTEN */
+#define G2D_INTEN_ACF			(1 << 3)
+#define G2D_INTEN_UCF			(1 << 2)
+#define G2D_INTEN_GCF			(1 << 1)
+#define G2D_INTEN_SCF			(1 << 0)
+
+/* G2D_INTC_PEND */
+#define G2D_INTP_ACMD_FIN		(1 << 3)
+#define G2D_INTP_UCMD_FIN		(1 << 2)
+#define G2D_INTP_GCMD_FIN		(1 << 1)
+#define G2D_INTP_SCMD_FIN		(1 << 0)
+
+/* G2D_DMA_COMMAND */
+#define G2D_DMA_HALT			(1 << 2)
+#define G2D_DMA_CONTINUE		(1 << 1)
+#define G2D_DMA_START			(1 << 0)
+
+/* G2D_DMA_STATUS */
+#define G2D_DMA_LIST_DONE_COUNT		(0xFF << 17)
+#define G2D_DMA_BITBLT_DONE_COUNT	(0xFFFF << 1)
+#define G2D_DMA_DONE			(1 << 0)
+#define G2D_DMA_LIST_DONE_COUNT_OFFSET	17
+
+/* G2D_DMA_HOLD_CMD */
+#define G2D_USET_HOLD			(1 << 2)
+#define G2D_LIST_HOLD			(1 << 1)
+#define G2D_BITBLT_HOLD			(1 << 0)
+
+/* G2D_BITBLT_START */
+#define G2D_START_CASESEL		(1 << 2)
+#define G2D_START_NHOLT			(1 << 1)
+#define G2D_START_BITBLT		(1 << 0)
+
+#define G2D_CMDLIST_SIZE		(PAGE_SIZE / 4)
+#define G2D_CMDLIST_NUM			64
+#define G2D_CMDLIST_POOL_SIZE		(G2D_CMDLIST_SIZE * G2D_CMDLIST_NUM)
+#define G2D_CMDLIST_DATA_NUM		(G2D_CMDLIST_SIZE / sizeof(u32) - 2)
+
+/* cmdlist data structure */
+struct g2d_cmdlist {
+	u32	head;
+	u32	data[G2D_CMDLIST_DATA_NUM];
+	u32	last;	/* last data offset */
+};
+
+struct drm_exynos_pending_g2d_event {
+	struct drm_pending_event	base;
+	struct drm_exynos_g2d_event	event;
+};
+
+struct g2d_gem_node {
+	struct list_head	list;
+	unsigned int		handle;
+};
+
+struct g2d_cmdlist_node {
+	struct list_head	list;
+	struct g2d_cmdlist	*cmdlist;
+	unsigned int		gem_nr;
+	dma_addr_t		dma_addr;
+
+	struct drm_exynos_pending_g2d_event	*event;
+};
+
+struct g2d_runqueue_node {
+	struct list_head	list;
+	struct list_head	run_cmdlist;
+	struct list_head	event_list;
+	struct completion	complete;
+	int			async;
+};
+
+struct g2d_data {
+	struct device			*dev;
+	struct clk			*gate_clk;
+	struct resource			*regs_res;
+	void __iomem			*regs;
+	int				irq;
+	struct workqueue_struct		*g2d_workq;
+	struct work_struct		runqueue_work;
+	struct exynos_drm_subdrv	subdrv;
+	bool				suspended;
+
+	/* cmdlist */
+	struct g2d_cmdlist_node		*cmdlist_node;
+	struct list_head		free_cmdlist;
+	struct mutex			cmdlist_mutex;
+	dma_addr_t			cmdlist_pool;
+	void				*cmdlist_pool_virt;
+
+	/* runqueue*/
+	struct g2d_runqueue_node	*runqueue_node;
+	struct list_head		runqueue;
+	struct mutex			runqueue_mutex;
+	struct kmem_cache		*runqueue_slab;
+};
+
+static int g2d_init_cmdlist(struct g2d_data *g2d)
+{
+	struct device *dev = g2d->dev;
+	struct g2d_cmdlist_node *node = g2d->cmdlist_node;
+	int nr;
+	int ret;
+
+	g2d->cmdlist_pool_virt = dma_alloc_coherent(dev, G2D_CMDLIST_POOL_SIZE,
+						&g2d->cmdlist_pool, GFP_KERNEL);
+	if (!g2d->cmdlist_pool_virt) {
+		dev_err(dev, "failed to allocate dma memory\n");
+		return -ENOMEM;
+	}
+
+	node = kcalloc(G2D_CMDLIST_NUM, G2D_CMDLIST_NUM * sizeof(*node),
+			GFP_KERNEL);
+	if (!node) {
+		dev_err(dev, "failed to allocate memory\n");
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	for (nr = 0; nr < G2D_CMDLIST_NUM; nr++) {
+		node[nr].cmdlist =
+			g2d->cmdlist_pool_virt + nr * G2D_CMDLIST_SIZE;
+		node[nr].dma_addr =
+			g2d->cmdlist_pool + nr * G2D_CMDLIST_SIZE;
+
+		list_add_tail(&node[nr].list, &g2d->free_cmdlist);
+	}
+
+	return 0;
+
+err:
+	dma_free_coherent(dev, G2D_CMDLIST_POOL_SIZE, g2d->cmdlist_pool_virt,
+			g2d->cmdlist_pool);
+	return ret;
+}
+
+static void g2d_fini_cmdlist(struct g2d_data *g2d)
+{
+	struct device *dev = g2d->dev;
+
+	kfree(g2d->cmdlist_node);
+	dma_free_coherent(dev, G2D_CMDLIST_POOL_SIZE, g2d->cmdlist_pool_virt,
+			g2d->cmdlist_pool);
+}
+
+static struct g2d_cmdlist_node *g2d_get_cmdlist(struct g2d_data *g2d)
+{
+	struct device *dev = g2d->dev;
+	struct g2d_cmdlist_node *node;
+
+	mutex_lock(&g2d->cmdlist_mutex);
+	if (list_empty(&g2d->free_cmdlist)) {
+		dev_err(dev, "there is no free cmdlist\n");
+		mutex_unlock(&g2d->cmdlist_mutex);
+		return NULL;
+	}
+
+	node = list_first_entry(&g2d->free_cmdlist, struct g2d_cmdlist_node,
+				list);
+	list_del_init(&node->list);
+	mutex_unlock(&g2d->cmdlist_mutex);
+
+	return node;
+}
+
+static void g2d_put_cmdlist(struct g2d_data *g2d, struct g2d_cmdlist_node *node)
+{
+	mutex_lock(&g2d->cmdlist_mutex);
+	list_move_tail(&node->list, &g2d->free_cmdlist);
+	mutex_unlock(&g2d->cmdlist_mutex);
+}
+
+static void g2d_add_cmdlist_to_inuse(struct exynos_drm_g2d_private *g2d_priv,
+				     struct g2d_cmdlist_node *node)
+{
+	struct g2d_cmdlist_node *lnode;
+
+	if (list_empty(&g2d_priv->inuse_cmdlist))
+		goto add_to_list;
+
+	/* this links to base address of new cmdlist */
+	lnode = list_entry(g2d_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);
+
+	if (node->event)
+		list_add_tail(&node->event->base.link, &g2d_priv->event_list);
+}
+
+static int g2d_get_cmdlist_gem(struct drm_device *drm_dev,
+			       struct drm_file *file,
+			       struct g2d_cmdlist_node *node)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct g2d_cmdlist *cmdlist = node->cmdlist;
+	dma_addr_t *addr;
+	int offset;
+	int i;
+
+	for (i = 0; i < node->gem_nr; i++) {
+		struct g2d_gem_node *gem_node;
+
+		gem_node = kzalloc(sizeof(*gem_node), GFP_KERNEL);
+		if (!gem_node) {
+			dev_err(g2d_priv->dev, "failed to allocate gem node\n");
+			return -ENOMEM;
+		}
+
+		offset = cmdlist->last - (i * 2 + 1);
+		gem_node->handle = cmdlist->data[offset];
+
+		addr = exynos_drm_gem_get_dma_addr(drm_dev, gem_node->handle,
+						   file);
+		if (IS_ERR(addr)) {
+			node->gem_nr = i;
+			kfree(gem_node);
+			return PTR_ERR(addr);
+		}
+
+		cmdlist->data[offset] = *addr;
+		list_add_tail(&gem_node->list, &g2d_priv->gem_list);
+		g2d_priv->gem_nr++;
+	}
+
+	return 0;
+}
+
+static void g2d_put_cmdlist_gem(struct drm_device *drm_dev,
+				struct drm_file *file,
+				unsigned int nr)
+{
+	struct drm_exynos_file_private *file_priv = file->driver_priv;
+	struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv;
+	struct g2d_gem_node *node, *n;
+
+	list_for_each_entry_safe_reverse(node, n, &g2d_priv->gem_list, list) {
+		if (!nr)
+			break;
+
+		exynos_drm_gem_put_dma_addr(drm_dev, node->handle, file);
+		list_del_init(&node->list);
+		kfree(node);
+		nr--;
+	}
+}
+
+static void g2d_dma_start(struct g2d_data *g2d,
+			  struct g2d_runqueue_node *runqueue_node)
+{
+	struct g2d_cmdlist_node *node =
+				list_first_entry(&runqueue_node->run_cmdlist,
+						struct g2d_cmdlist_node, list);
+
+	pm_runtime_get_sync(g2d->dev);
+	clk_enable(g2d->gate_clk);
+
+	/* interrupt enable */
+	writel_relaxed(G2D_INTEN_ACF | G2D_INTEN_UCF | G2D_INTEN_GCF,
+			g2d->regs + G2D_INTEN);
+
+	writel_relaxed(node->dma_addr, g2d->regs + G2D_DMA_SFR_BASE_ADDR);
+	writel_relaxed(G2D_DMA_START, g2d->regs + G2D_DMA_COMMAND);
+}
+
+static struct g2d_runqueue_node *g2d_get_runqueue_node(struct g2d_data *g2d)
+{
+	struct g2d_runqueue_node *runqueue_node;
+
+	if (list_empty(&g2d->runqueue))
+		return NULL;
+
+	runqueue_node = list_first_entry(&g2d->runqueue,
+					 struct g2d_runqueue_node, list);
+	list_del_init(&runqueue_node->list);
+	return runqueue_node;
+}
+
+static void g2d_free_runqueue_node(struct g2d_data *g2d,
+				   struct g2d_runqueue_node *runqueue_node)
+{
+	if (!runqueue_node)
+		return;
+
+	mutex_lock(&g2d->cmdlist_mutex);
+	list_splice_tail_init(&runqueue_node->run_cmdlist, &g2d->free_cmdlist);
+	mutex_unlock(&g2d->cmdlist_mutex);
+
+	kmem_cache_free(g2d->runqueue_slab, runqueue_node);
+}
+
+static void g2d_exec_runqueue(struct g2d_data *g2d)
+{
+	g2d->runqueue_node = g2d_get_runqueue_node(g2d);
+	if (g2d->runqueue_node)
+		g2d_dma_start(g2d, g2d->runqueue_node);
+}
+
+static void g2d_runqueue_worker(struct work_struct *work)
+{
+	struct g2d_data *g2d = container_of(work, struct g2d_data,
+					    runqueue_work);
+
+
+	mutex_lock(&g2d->runqueue_mutex);
+	clk_disable(g2d->gate_clk);
+	pm_runtime_put_sync(g2d->dev);
+
+	complete(&g2d->runqueue_node->complete);
+	if (g2d->runqueue_node->async)
+		g2d_free_runqueue_node(g2d, g2d->runqueue_node);
+
+	if (g2d->suspended)
+		g2d->runqueue_node = NULL;
+	else
+		g2d_exec_runqueue(g2d);
+	mutex_unlock(&g2d->runqueue_mutex);
+}
+
+static void g2d_finish_event(struct g2d_data *g2d, u32 cmdlist_no)
+{
+	struct drm_device *drm_dev = g2d->subdrv.drm_dev;
+	struct g2d_runqueue_node *runqueue_node = g2d->runqueue_node;
+	struct drm_exynos_pending_g2d_event *e;
+	struct timeval now;
+	unsigned long flags;
+
+	if (list_empty(&runqueue_node->event_list))
+		return;
+
+	e = list_first_entry(&runqueue_node->event_list,
+			     struct drm_exynos_pending_g2d_event, base.link);
+
+	do_gettimeofday(&now);
+	e->event.tv_sec = now.tv_sec;
+	e->event.tv_usec = now.tv_usec;
+	e->event.cmdlist_no = cmdlist_no;
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags);
+	list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+	wake_up_interruptible(&e->base.file_priv->event_wait);
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+}
+
+static irqreturn_t g2d_irq_handler(int irq, void *dev_id)
+{
+	struct g2d_data *g2d = dev_id;
+	u32 pending;
+
+	pending = readl_relaxed(g2d->regs + G2D_INTC_PEND);
+	if (pending)
+		writel_relaxed(pending, g2d->regs + G2D_INTC_PEND);
+
+	if (pending & G2D_INTP_GCMD_FIN) {
+		u32 cmdlist_no = readl_relaxed(g2d->regs + G2D_DMA_STATUS);
+
+		cmdlist_no = (cmdlist_no & G2D_DMA_LIST_DONE_COUNT) >>
+						G2D_DMA_LIST_DONE_COUNT_OFFSET;
+
+		g2d_finish_event(g2d, cmdlist_no);
+
+		writel_relaxed(0, g2d->regs + G2D_DMA_HOLD_CMD);
+		if (!(pending & G2D_INTP_ACMD_FIN)) {
+			writel_relaxed(G2D_DMA_CONTINUE,
+					g2d->regs + G2D_DMA_COMMAND);
+		}
+	}
+
+	if (pending & G2D_INTP_ACMD_FIN)
+		queue_work(g2d->g2d_workq, &g2d->runqueue_work);
+
+	return IRQ_HANDLED;
+}
+
+static int g2d_check_reg_offset(struct device *dev, struct g2d_cmdlist *cmdlist,
+				int nr, bool for_addr)
+{
+	int reg_offset;
+	int index;
+	int i;
+
+	for (i = 0; i < nr; i++) {
+		index = cmdlist->last - 2 * (i + 1);
+		reg_offset = cmdlist->data[index] & ~0xfffff000;
+
+		if (reg_offset < G2D_VALID_START || reg_offset > G2D_VALID_END)
+			goto err;
+		if (reg_offset % 4)
+			goto err;
+
+		switch (reg_offset) {
+		case G2D_SRC_BASE_ADDR:
+		case G2D_SRC_PLANE2_BASE_ADDR:
+		case G2D_DST_BASE_ADDR:
+		case G2D_DST_PLANE2_BASE_ADDR:
+		case G2D_PAT_BASE_ADDR:
+		case G2D_MSK_BASE_ADDR:
+			if (!for_addr)
+				goto err;
+			break;
+		default:
+			if (for_addr)
+				goto err;
+			break;
+		}
+	}
+
+	return 0;
+
+err:
+	dev_err(dev, "Bad register offset: 0x%x\n", cmdlist->data[index]);
+	return -EINVAL;
+}
+
+/* ioctl functions */
+int exynos_g2d_get_ver_ioctl(struct drm_device *drm_dev, void *data,
+			     struct drm_file *file)
+{
+	struct drm_exynos_g2d_get_ver *ver = data;
+
+	ver->major = G2D_HW_MAJOR_VER;
+	ver->minor = G2D_HW_MINOR_VER;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_g2d_get_ver_ioctl);
+
+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 = g2d_priv->dev;
+	struct g2d_data *g2d;
+	struct drm_exynos_g2d_set_cmdlist *req = data;
+	struct drm_exynos_g2d_cmd *cmd;
+	struct drm_exynos_pending_g2d_event *e;
+	struct g2d_cmdlist_node *node;
+	struct g2d_cmdlist *cmdlist;
+	unsigned long flags;
+	int size;
+	int ret;
+
+	if (!dev)
+		return -ENODEV;
+
+	g2d = dev_get_drvdata(dev);
+	if (!g2d)
+		return -EFAULT;
+
+	node = g2d_get_cmdlist(g2d);
+	if (!node)
+		return -ENOMEM;
+
+	node->event = NULL;
+
+	if (req->event_type != G2D_EVENT_NOT) {
+		spin_lock_irqsave(&drm_dev->event_lock, flags);
+		if (file->event_space < sizeof(e->event)) {
+			spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+			ret = -ENOMEM;
+			goto err;
+		}
+		file->event_space -= sizeof(e->event);
+		spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+
+		e = kzalloc(sizeof(*node->event), GFP_KERNEL);
+		if (!e) {
+			dev_err(dev, "failed to allocate event\n");
+
+			spin_lock_irqsave(&drm_dev->event_lock, flags);
+			file->event_space += sizeof(e->event);
+			spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+
+			ret = -ENOMEM;
+			goto err;
+		}
+
+		e->event.base.type = DRM_EXYNOS_G2D_EVENT;
+		e->event.base.length = sizeof(e->event);
+		e->event.user_data = req->user_data;
+		e->base.event = &e->event.base;
+		e->base.file_priv = file;
+		e->base.destroy = (void (*) (struct drm_pending_event *)) kfree;
+
+		node->event = e;
+	}
+
+	cmdlist = node->cmdlist;
+
+	cmdlist->last = 0;
+
+	/*
+	 * If don't clear SFR registers, the cmdlist is affected by register
+	 * values of previous cmdlist. G2D hw executes SFR clear command and
+	 * a next command at the same time then the next command is ignored and
+	 * is executed rightly from next next command, so needs a dummy command
+	 * to next command of SFR clear command.
+	 */
+	cmdlist->data[cmdlist->last++] = G2D_SOFT_RESET;
+	cmdlist->data[cmdlist->last++] = G2D_SFRCLEAR;
+	cmdlist->data[cmdlist->last++] = G2D_SRC_BASE_ADDR;
+	cmdlist->data[cmdlist->last++] = 0;
+
+	if (node->event) {
+		cmdlist->data[cmdlist->last++] = G2D_DMA_HOLD_CMD;
+		cmdlist->data[cmdlist->last++] = G2D_LIST_HOLD;
+	}
+
+	/* Check size of cmdlist: last 2 is about G2D_BITBLT_START */
+	size = cmdlist->last + req->cmd_nr * 2 + req->cmd_gem_nr * 2 + 2;
+	if (size > G2D_CMDLIST_DATA_NUM) {
+		dev_err(dev, "cmdlist size is too big\n");
+		ret = -EINVAL;
+		goto err_free_event;
+	}
+
+	cmd = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd;
+
+	if (copy_from_user(cmdlist->data + cmdlist->last,
+				(void __user *)cmd,
+				sizeof(*cmd) * req->cmd_nr)) {
+		ret = -EFAULT;
+		goto err_free_event;
+	}
+	cmdlist->last += req->cmd_nr * 2;
+
+	ret = g2d_check_reg_offset(dev, cmdlist, req->cmd_nr, false);
+	if (ret < 0)
+		goto err_free_event;
+
+	node->gem_nr = req->cmd_gem_nr;
+	if (req->cmd_gem_nr) {
+		struct drm_exynos_g2d_cmd *cmd_gem;
+
+		cmd_gem = (struct drm_exynos_g2d_cmd *)(uint32_t)req->cmd_gem;
+
+		if (copy_from_user(cmdlist->data + cmdlist->last,
+					(void __user *)cmd_gem,
+					sizeof(*cmd_gem) * req->cmd_gem_nr)) {
+			ret = -EFAULT;
+			goto err_free_event;
+		}
+		cmdlist->last += req->cmd_gem_nr * 2;
+
+		ret = g2d_check_reg_offset(dev, cmdlist, req->cmd_gem_nr, true);
+		if (ret < 0)
+			goto err_free_event;
+
+		ret = g2d_get_cmdlist_gem(drm_dev, file, node);
+		if (ret < 0)
+			goto err_unmap;
+	}
+
+	cmdlist->data[cmdlist->last++] = G2D_BITBLT_START;
+	cmdlist->data[cmdlist->last++] = G2D_START_BITBLT;
+
+	/* head */
+	cmdlist->head = cmdlist->last / 2;
+
+	/* tail */
+	cmdlist->data[cmdlist->last] = 0;
+
+	g2d_add_cmdlist_to_inuse(g2d_priv, node);
+
+	return 0;
+
+err_unmap:
+	g2d_put_cmdlist_gem(drm_dev, file, node->gem_nr);
+err_free_event:
+	if (node->event) {
+		spin_lock_irqsave(&drm_dev->event_lock, flags);
+		file->event_space += sizeof(e->event);
+		spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+		kfree(node->event);
+	}
+err:
+	g2d_put_cmdlist(g2d, node);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(exynos_g2d_set_cmdlist_ioctl);
+
+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 = g2d_priv->dev;
+	struct g2d_data *g2d;
+	struct drm_exynos_g2d_exec *req = data;
+	struct g2d_runqueue_node *runqueue_node;
+	struct list_head *run_cmdlist;
+	struct list_head *event_list;
+
+	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) {
+		dev_err(dev, "failed to allocate memory\n");
+		return -ENOMEM;
+	}
+	run_cmdlist = &runqueue_node->run_cmdlist;
+	event_list = &runqueue_node->event_list;
+	INIT_LIST_HEAD(run_cmdlist);
+	INIT_LIST_HEAD(event_list);
+	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);
+
+	if (list_empty(run_cmdlist)) {
+		dev_err(dev, "there is no inuse cmdlist\n");
+		kmem_cache_free(g2d->runqueue_slab, runqueue_node);
+		return -EPERM;
+	}
+
+	mutex_lock(&g2d->runqueue_mutex);
+	list_add_tail(&runqueue_node->list, &g2d->runqueue);
+	if (!g2d->runqueue_node)
+		g2d_exec_runqueue(g2d);
+	mutex_unlock(&g2d->runqueue_mutex);
+
+	if (runqueue_node->async)
+		goto out;
+
+	wait_for_completion(&runqueue_node->complete);
+	g2d_free_runqueue_node(g2d, runqueue_node);
+
+out:
+	return 0;
+}
+EXPORT_SYMBOL_GPL(exynos_g2d_exec_ioctl);
+
+static int g2d_open(struct drm_device *drm_dev, struct device *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) {
+		dev_err(dev, "failed to allocate g2d private data\n");
+		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->gem_list);
+
+	return 0;
+}
+
+static void g2d_close(struct drm_device *drm_dev, struct device *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 g2d_data *g2d;
+	struct g2d_cmdlist_node *node, *n;
+
+	if (!dev)
+		return;
+
+	g2d = dev_get_drvdata(dev);
+	if (!g2d)
+		return;
+
+	mutex_lock(&g2d->cmdlist_mutex);
+	list_for_each_entry_safe(node, n, &g2d_priv->inuse_cmdlist, list)
+		list_move_tail(&node->list, &g2d->free_cmdlist);
+	mutex_unlock(&g2d->cmdlist_mutex);
+
+	g2d_put_cmdlist_gem(drm_dev, file, g2d_priv->gem_nr);
+
+	kfree(file_priv->g2d_priv);
+}
+
+static int __devinit 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 = kzalloc(sizeof(*g2d), GFP_KERNEL);
+	if (!g2d) {
+		dev_err(dev, "failed to allocate driver data\n");
+		return -ENOMEM;
+	}
+
+	g2d->runqueue_slab = kmem_cache_create("g2d_runqueue_slab",
+			sizeof(struct g2d_runqueue_node), 0, 0, NULL);
+	if (!g2d->runqueue_slab) {
+		ret = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	g2d->dev = dev;
+
+	g2d->g2d_workq = create_singlethread_workqueue("g2d");
+	if (!g2d->g2d_workq) {
+		dev_err(dev, "failed to create workqueue\n");
+		ret = -EINVAL;
+		goto err_destroy_slab;
+	}
+
+	INIT_WORK(&g2d->runqueue_work, g2d_runqueue_worker);
+	INIT_LIST_HEAD(&g2d->free_cmdlist);
+	INIT_LIST_HEAD(&g2d->runqueue);
+
+	mutex_init(&g2d->cmdlist_mutex);
+	mutex_init(&g2d->runqueue_mutex);
+
+	ret = g2d_init_cmdlist(g2d);
+	if (ret < 0)
+		goto err_destroy_workqueue;
+
+	g2d->gate_clk = clk_get(dev, "fimg2d");
+	if (IS_ERR(g2d->gate_clk)) {
+		dev_err(dev, "failed to get gate clock\n");
+		ret = PTR_ERR(g2d->gate_clk);
+		goto err_fini_cmdlist;
+	}
+
+	pm_runtime_enable(dev);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "failed to get I/O memory\n");
+		ret = -ENOENT;
+		goto err_put_clk;
+	}
+
+	g2d->regs_res = request_mem_region(res->start, resource_size(res),
+					   dev_name(dev));
+	if (!g2d->regs_res) {
+		dev_err(dev, "failed to request I/O memory\n");
+		ret = -ENOENT;
+		goto err_put_clk;
+	}
+
+	g2d->regs = ioremap(res->start, resource_size(res));
+	if (!g2d->regs) {
+		dev_err(dev, "failed to remap I/O memory\n");
+		ret = -ENXIO;
+		goto err_release_res;
+	}
+
+	g2d->irq = platform_get_irq(pdev, 0);
+	if (g2d->irq < 0) {
+		dev_err(dev, "failed to get irq\n");
+		ret = g2d->irq;
+		goto err_unmap_base;
+	}
+
+	ret = request_irq(g2d->irq, g2d_irq_handler, 0, "drm_g2d", g2d);
+	if (ret < 0) {
+		dev_err(dev, "irq request failed\n");
+		goto err_unmap_base;
+	}
+
+	platform_set_drvdata(pdev, g2d);
+
+	subdrv = &g2d->subdrv;
+	subdrv->dev = dev;
+	subdrv->open = g2d_open;
+	subdrv->close = g2d_close;
+
+	ret = exynos_drm_subdrv_register(subdrv);
+	if (ret < 0) {
+		dev_err(dev, "failed to register drm g2d device\n");
+		goto err_free_irq;
+	}
+
+	dev_info(dev, "The exynos g2d(ver %d.%d) successfully probed\n",
+			G2D_HW_MAJOR_VER, G2D_HW_MINOR_VER);
+
+	return 0;
+
+err_free_irq:
+	free_irq(g2d->irq, g2d);
+err_unmap_base:
+	iounmap(g2d->regs);
+err_release_res:
+	release_resource(g2d->regs_res);
+	kfree(g2d->regs_res);
+err_put_clk:
+	pm_runtime_disable(dev);
+	clk_put(g2d->gate_clk);
+err_fini_cmdlist:
+	g2d_fini_cmdlist(g2d);
+err_destroy_workqueue:
+	destroy_workqueue(g2d->g2d_workq);
+err_destroy_slab:
+	kmem_cache_destroy(g2d->runqueue_slab);
+err_free_mem:
+	kfree(g2d);
+	return ret;
+}
+
+static int __devexit g2d_remove(struct platform_device *pdev)
+{
+	struct g2d_data *g2d = platform_get_drvdata(pdev);
+
+	cancel_work_sync(&g2d->runqueue_work);
+	exynos_drm_subdrv_unregister(&g2d->subdrv);
+	free_irq(g2d->irq, g2d);
+
+	while (g2d->runqueue_node) {
+		g2d_free_runqueue_node(g2d, g2d->runqueue_node);
+		g2d->runqueue_node = g2d_get_runqueue_node(g2d);
+	}
+
+	iounmap(g2d->regs);
+	release_resource(g2d->regs_res);
+	kfree(g2d->regs_res);
+
+	pm_runtime_disable(&pdev->dev);
+	clk_put(g2d->gate_clk);
+
+	g2d_fini_cmdlist(g2d);
+	destroy_workqueue(g2d->g2d_workq);
+	kmem_cache_destroy(g2d->runqueue_slab);
+	kfree(g2d);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int g2d_suspend(struct device *dev)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+
+	mutex_lock(&g2d->runqueue_mutex);
+	g2d->suspended = true;
+	mutex_unlock(&g2d->runqueue_mutex);
+
+	while (g2d->runqueue_node)
+		/* FIXME: good range? */
+		usleep_range(500, 1000);
+
+	flush_work_sync(&g2d->runqueue_work);
+
+	return 0;
+}
+
+static int g2d_resume(struct device *dev)
+{
+	struct g2d_data *g2d = dev_get_drvdata(dev);
+
+	g2d->suspended = false;
+	g2d_exec_runqueue(g2d);
+
+	return 0;
+}
+#endif
+
+SIMPLE_DEV_PM_OPS(g2d_pm_ops, g2d_suspend, g2d_resume);
+
+struct platform_driver g2d_driver = {
+	.probe		= g2d_probe,
+	.remove		= __devexit_p(g2d_remove),
+	.driver		= {
+		.name	= "s5p-g2d",
+		.owner	= THIS_MODULE,
+		.pm	= &g2d_pm_ops,
+	},
+};
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.h b/drivers/gpu/drm/exynos/exynos_drm_g2d.h
new file mode 100644
index 000000000000..1a9c7ca8c15b
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundationr
+ */
+
+#ifdef CONFIG_DRM_EXYNOS_G2D
+extern int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
+				    struct drm_file *file_priv);
+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);
+#else
+static inline int exynos_g2d_get_ver_ioctl(struct drm_device *dev, void *data,
+					   struct drm_file *file_priv)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_g2d_set_cmdlist_ioctl(struct drm_device *dev,
+					       void *data,
+					       struct drm_file *file_priv)
+{
+	return -ENODEV;
+}
+
+static inline int exynos_g2d_exec_ioctl(struct drm_device *dev, void *data,
+					struct drm_file *file_priv)
+{
+	return -ENODEV;
+}
+#endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 1dffa8359f88..fc91293c4560 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -66,6 +66,22 @@ static int check_gem_flags(unsigned int flags)
 	return 0;
 }
 
+static void update_vm_cache_attr(struct exynos_drm_gem_obj *obj,
+					struct vm_area_struct *vma)
+{
+	DRM_DEBUG_KMS("flags = 0x%x\n", obj->flags);
+
+	/* non-cachable as default. */
+	if (obj->flags & EXYNOS_BO_CACHABLE)
+		vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+	else if (obj->flags & EXYNOS_BO_WC)
+		vma->vm_page_prot =
+			pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+	else
+		vma->vm_page_prot =
+			pgprot_noncached(vm_get_page_prot(vma->vm_flags));
+}
+
 static unsigned long roundup_gem_size(unsigned long size, unsigned int flags)
 {
 	if (!IS_NONCONTIG_BUFFER(flags)) {
@@ -80,7 +96,7 @@ out:
 	return roundup(size, PAGE_SIZE);
 }
 
-static struct page **exynos_gem_get_pages(struct drm_gem_object *obj,
+struct page **exynos_gem_get_pages(struct drm_gem_object *obj,
 						gfp_t gfpmask)
 {
 	struct inode *inode;
@@ -180,6 +196,7 @@ static int exynos_drm_gem_get_pages(struct drm_gem_object *obj)
 	}
 
 	npages = obj->size >> PAGE_SHIFT;
+	buf->page_size = PAGE_SIZE;
 
 	buf->sgt = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
 	if (!buf->sgt) {
@@ -262,24 +279,24 @@ static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
 void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj)
 {
 	struct drm_gem_object *obj;
+	struct exynos_drm_gem_buf *buf;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	if (!exynos_gem_obj)
-		return;
-
 	obj = &exynos_gem_obj->base;
+	buf = exynos_gem_obj->buffer;
 
 	DRM_DEBUG_KMS("handle count = %d\n", atomic_read(&obj->handle_count));
 
-	if ((exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG) &&
-			exynos_gem_obj->buffer->pages)
+	if (!buf->pages)
+		return;
+
+	if (exynos_gem_obj->flags & EXYNOS_BO_NONCONTIG)
 		exynos_drm_gem_put_pages(obj);
 	else
-		exynos_drm_free_buf(obj->dev, exynos_gem_obj->flags,
-					exynos_gem_obj->buffer);
+		exynos_drm_free_buf(obj->dev, exynos_gem_obj->flags, buf);
 
-	exynos_drm_fini_buf(obj->dev, exynos_gem_obj->buffer);
+	exynos_drm_fini_buf(obj->dev, buf);
 	exynos_gem_obj->buffer = NULL;
 
 	if (obj->map_list.map)
@@ -292,7 +309,7 @@ void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj)
 	exynos_gem_obj = NULL;
 }
 
-static struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
+struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
 						      unsigned long size)
 {
 	struct exynos_drm_gem_obj *exynos_gem_obj;
@@ -493,8 +510,7 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp,
 
 	vma->vm_flags |= (VM_IO | VM_RESERVED);
 
-	/* in case of direct mapping, always having non-cachable attribute */
-	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+	update_vm_cache_attr(exynos_gem_obj, vma);
 
 	vm_size = usize = vma->vm_end - vma->vm_start;
 
@@ -588,6 +604,32 @@ int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
 	return 0;
 }
 
+int exynos_drm_gem_get_ioctl(struct drm_device *dev, void *data,
+				      struct drm_file *file_priv)
+{	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_exynos_gem_info *args = data;
+	struct drm_gem_object *obj;
+
+	mutex_lock(&dev->struct_mutex);
+
+	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object.\n");
+		mutex_unlock(&dev->struct_mutex);
+		return -EINVAL;
+	}
+
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	args->flags = exynos_gem_obj->flags;
+	args->size = exynos_gem_obj->size;
+
+	drm_gem_object_unreference(obj);
+	mutex_unlock(&dev->struct_mutex);
+
+	return 0;
+}
+
 int exynos_drm_gem_init_object(struct drm_gem_object *obj)
 {
 	DRM_DEBUG_KMS("%s\n", __FILE__);
@@ -597,8 +639,17 @@ int exynos_drm_gem_init_object(struct drm_gem_object *obj)
 
 void exynos_drm_gem_free_object(struct drm_gem_object *obj)
 {
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct exynos_drm_gem_buf *buf;
+
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+	buf = exynos_gem_obj->buffer;
+
+	if (obj->import_attach)
+		drm_prime_gem_destroy(obj, buf->sgt);
+
 	exynos_drm_gem_destroy(to_exynos_gem_obj(obj));
 }
 
@@ -724,6 +775,8 @@ int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 
 int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 {
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_gem_object *obj;
 	int ret;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
@@ -735,8 +788,20 @@ int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 		return ret;
 	}
 
+	obj = vma->vm_private_data;
+	exynos_gem_obj = to_exynos_gem_obj(obj);
+
+	ret = check_gem_flags(exynos_gem_obj->flags);
+	if (ret) {
+		drm_gem_vm_close(vma);
+		drm_gem_free_mmap_offset(obj);
+		return ret;
+	}
+
 	vma->vm_flags &= ~VM_PFNMAP;
 	vma->vm_flags |= VM_MIXEDMAP;
 
+	update_vm_cache_attr(exynos_gem_obj, vma);
+
 	return ret;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index 4ed842039505..14d038b6cb02 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -40,6 +40,7 @@
  *	device address with IOMMU.
  * @sgt: sg table to transfer page data.
  * @pages: contain all pages to allocated memory region.
+ * @page_size: could be 4K, 64K or 1MB.
  * @size: size of allocated memory region.
  */
 struct exynos_drm_gem_buf {
@@ -47,6 +48,7 @@ struct exynos_drm_gem_buf {
 	dma_addr_t		dma_addr;
 	struct sg_table		*sgt;
 	struct page		**pages;
+	unsigned long		page_size;
 	unsigned long		size;
 };
 
@@ -74,9 +76,15 @@ struct exynos_drm_gem_obj {
 	unsigned int			flags;
 };
 
+struct page **exynos_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
+
 /* destroy a buffer with gem object */
 void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj);
 
+/* create a private gem object and initialize it. */
+struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
+						      unsigned long size);
+
 /* create a new buffer with gem object */
 struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
 						unsigned int flags,
@@ -119,6 +127,10 @@ int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data,
 int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
 			      struct drm_file *file_priv);
 
+/* 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);
+
 /* initialize gem object. */
 int exynos_drm_gem_init_object(struct drm_gem_object *obj);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
index 3424463676e0..5d9d2c2f8f3f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
@@ -37,6 +37,8 @@ struct drm_hdmi_context {
 	struct exynos_drm_subdrv	subdrv;
 	struct exynos_drm_hdmi_context	*hdmi_ctx;
 	struct exynos_drm_hdmi_context	*mixer_ctx;
+
+	bool	enabled[MIXER_WIN_NR];
 };
 
 void exynos_hdmi_ops_register(struct exynos_hdmi_ops *ops)
@@ -189,23 +191,34 @@ static void drm_hdmi_dpms(struct device *subdrv_dev, int mode)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	switch (mode) {
-	case DRM_MODE_DPMS_ON:
-		break;
-	case DRM_MODE_DPMS_STANDBY:
-	case DRM_MODE_DPMS_SUSPEND:
-	case DRM_MODE_DPMS_OFF:
-		if (hdmi_ops && hdmi_ops->disable)
-			hdmi_ops->disable(ctx->hdmi_ctx->ctx);
-		break;
-	default:
-		DRM_DEBUG_KMS("unkown dps mode: %d\n", mode);
-		break;
+	if (mixer_ops && mixer_ops->dpms)
+		mixer_ops->dpms(ctx->mixer_ctx->ctx, mode);
+
+	if (hdmi_ops && hdmi_ops->dpms)
+		hdmi_ops->dpms(ctx->hdmi_ctx->ctx, mode);
+}
+
+static void drm_hdmi_apply(struct device *subdrv_dev)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+	int i;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	for (i = 0; i < MIXER_WIN_NR; i++) {
+		if (!ctx->enabled[i])
+			continue;
+		if (mixer_ops && mixer_ops->win_commit)
+			mixer_ops->win_commit(ctx->mixer_ctx->ctx, i);
 	}
+
+	if (hdmi_ops && hdmi_ops->commit)
+		hdmi_ops->commit(ctx->hdmi_ctx->ctx);
 }
 
 static struct exynos_drm_manager_ops drm_hdmi_manager_ops = {
 	.dpms = drm_hdmi_dpms,
+	.apply = drm_hdmi_apply,
 	.enable_vblank = drm_hdmi_enable_vblank,
 	.disable_vblank = drm_hdmi_disable_vblank,
 	.mode_fixup = drm_hdmi_mode_fixup,
@@ -228,21 +241,37 @@ static void drm_mixer_mode_set(struct device *subdrv_dev,
 static void drm_mixer_commit(struct device *subdrv_dev, int zpos)
 {
 	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+	int win = (zpos == DEFAULT_ZPOS) ? MIXER_DEFAULT_WIN : zpos;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (win < 0 || win > MIXER_WIN_NR) {
+		DRM_ERROR("mixer window[%d] is wrong\n", win);
+		return;
+	}
+
 	if (mixer_ops && mixer_ops->win_commit)
-		mixer_ops->win_commit(ctx->mixer_ctx->ctx, zpos);
+		mixer_ops->win_commit(ctx->mixer_ctx->ctx, win);
+
+	ctx->enabled[win] = true;
 }
 
 static void drm_mixer_disable(struct device *subdrv_dev, int zpos)
 {
 	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+	int win = (zpos == DEFAULT_ZPOS) ? MIXER_DEFAULT_WIN : zpos;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (win < 0 || win > MIXER_WIN_NR) {
+		DRM_ERROR("mixer window[%d] is wrong\n", win);
+		return;
+	}
+
 	if (mixer_ops && mixer_ops->win_disable)
-		mixer_ops->win_disable(ctx->mixer_ctx->ctx, zpos);
+		mixer_ops->win_disable(ctx->mixer_ctx->ctx, win);
+
+	ctx->enabled[win] = false;
 }
 
 static struct exynos_drm_overlay_ops drm_hdmi_overlay_ops = {
@@ -335,25 +364,6 @@ static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int hdmi_runtime_suspend(struct device *dev)
-{
-	DRM_DEBUG_KMS("%s\n", __FILE__);
-
-	return 0;
-}
-
-static int hdmi_runtime_resume(struct device *dev)
-{
-	DRM_DEBUG_KMS("%s\n", __FILE__);
-
-	return 0;
-}
-
-static const struct dev_pm_ops hdmi_pm_ops = {
-	.runtime_suspend = hdmi_runtime_suspend,
-	.runtime_resume	 = hdmi_runtime_resume,
-};
-
 static int __devexit exynos_drm_hdmi_remove(struct platform_device *pdev)
 {
 	struct drm_hdmi_context *ctx = platform_get_drvdata(pdev);
@@ -372,6 +382,5 @@ struct platform_driver exynos_drm_common_hdmi_driver = {
 	.driver		= {
 		.name	= "exynos-drm-hdmi",
 		.owner	= THIS_MODULE,
-		.pm = &hdmi_pm_ops,
 	},
 };
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
index f3ae192c8dcf..bd8126996e52 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
@@ -26,6 +26,9 @@
 #ifndef _EXYNOS_DRM_HDMI_H_
 #define _EXYNOS_DRM_HDMI_H_
 
+#define MIXER_WIN_NR		3
+#define MIXER_DEFAULT_WIN	0
+
 /*
  * exynos hdmi common context structure.
  *
@@ -54,13 +57,14 @@ struct exynos_hdmi_ops {
 	void (*get_max_resol)(void *ctx, unsigned int *width,
 				unsigned int *height);
 	void (*commit)(void *ctx);
-	void (*disable)(void *ctx);
+	void (*dpms)(void *ctx, int mode);
 };
 
 struct exynos_mixer_ops {
 	/* manager */
 	int (*enable_vblank)(void *ctx, int pipe);
 	void (*disable_vblank)(void *ctx);
+	void (*dpms)(void *ctx, int mode);
 
 	/* overlay */
 	void (*win_mode_set)(void *ctx, struct exynos_drm_overlay *overlay);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index f92fe4c6174a..c4c6525d4653 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -41,8 +41,6 @@ exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 		container_of(plane, struct exynos_plane, base);
 	struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
 	struct exynos_drm_crtc_pos pos;
-	unsigned int x = src_x >> 16;
-	unsigned int y = src_y >> 16;
 	int ret;
 
 	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
@@ -53,10 +51,12 @@ exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 	pos.crtc_w = crtc_w;
 	pos.crtc_h = crtc_h;
 
-	pos.fb_x = x;
-	pos.fb_y = y;
+	/* considering 16.16 fixed point of source values */
+	pos.fb_x = src_x >> 16;
+	pos.fb_y = src_y >> 16;
+	pos.src_w = src_w >> 16;
+	pos.src_h = src_h >> 16;
 
-	/* TODO: scale feature */
 	ret = exynos_drm_overlay_update(overlay, fb, &crtc->mode, &pos);
 	if (ret < 0)
 		return ret;
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index b00353876458..a137e9e39a33 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -57,18 +57,16 @@ struct hdmi_resources {
 struct hdmi_context {
 	struct device			*dev;
 	struct drm_device		*drm_dev;
-	struct fb_videomode		*default_timing;
-	unsigned int			is_v13:1;
-	unsigned int			default_win;
-	unsigned int			default_bpp;
-	bool				hpd_handle;
-	bool				enabled;
+	bool				hpd;
+	bool				powered;
+	bool				is_v13;
+	bool				dvi_mode;
+	struct mutex			hdmi_mutex;
 
 	struct resource			*regs_res;
 	void __iomem			*regs;
-	unsigned int			irq;
-	struct workqueue_struct		*wq;
-	struct work_struct		hotplug_work;
+	unsigned int			external_irq;
+	unsigned int			internal_irq;
 
 	struct i2c_client		*ddc_port;
 	struct i2c_client		*hdmiphy_port;
@@ -78,6 +76,9 @@ struct hdmi_context {
 
 	struct hdmi_resources		res;
 	void				*parent_ctx;
+
+	void				(*cfg_hpd)(bool external);
+	int				(*get_hpd)(void);
 };
 
 /* HDMI Version 1.3 */
@@ -361,6 +362,13 @@ static const u8 hdmiphy_conf27_027[32] = {
 	0x54, 0xe3, 0x24, 0x00, 0x00, 0x00, 0x01, 0x00,
 };
 
+static const u8 hdmiphy_conf74_176[32] = {
+	0x01, 0xd1, 0x1f, 0x10, 0x40, 0x5b, 0xef, 0x08,
+	0x81, 0xa0, 0xb9, 0xd8, 0x45, 0xa0, 0xac, 0x80,
+	0x5a, 0x80, 0x11, 0x04, 0x02, 0x22, 0x44, 0x86,
+	0x54, 0xa6, 0x24, 0x01, 0x00, 0x00, 0x01, 0x00,
+};
+
 static const u8 hdmiphy_conf74_25[32] = {
 	0x01, 0xd1, 0x1f, 0x10, 0x40, 0x40, 0xf8, 0x08,
 	0x81, 0xa0, 0xba, 0xd8, 0x45, 0xa0, 0xac, 0x80,
@@ -750,6 +758,63 @@ static const struct hdmi_preset_conf hdmi_conf_1080i60 = {
 	},
 };
 
+static const struct hdmi_preset_conf hdmi_conf_1080p30 = {
+	.core = {
+		.h_blank = {0x18, 0x01},
+		.v2_blank = {0x65, 0x04},
+		.v1_blank = {0x2d, 0x00},
+		.v_line = {0x65, 0x04},
+		.h_line = {0x98, 0x08},
+		.hsync_pol = {0x00},
+		.vsync_pol = {0x00},
+		.int_pro_mode = {0x00},
+		.v_blank_f0 = {0xff, 0xff},
+		.v_blank_f1 = {0xff, 0xff},
+		.h_sync_start = {0x56, 0x00},
+		.h_sync_end = {0x82, 0x00},
+		.v_sync_line_bef_2 = {0x09, 0x00},
+		.v_sync_line_bef_1 = {0x04, 0x00},
+		.v_sync_line_aft_2 = {0xff, 0xff},
+		.v_sync_line_aft_1 = {0xff, 0xff},
+		.v_sync_line_aft_pxl_2 = {0xff, 0xff},
+		.v_sync_line_aft_pxl_1 = {0xff, 0xff},
+		.v_blank_f2 = {0xff, 0xff},
+		.v_blank_f3 = {0xff, 0xff},
+		.v_blank_f4 = {0xff, 0xff},
+		.v_blank_f5 = {0xff, 0xff},
+		.v_sync_line_aft_3 = {0xff, 0xff},
+		.v_sync_line_aft_4 = {0xff, 0xff},
+		.v_sync_line_aft_5 = {0xff, 0xff},
+		.v_sync_line_aft_6 = {0xff, 0xff},
+		.v_sync_line_aft_pxl_3 = {0xff, 0xff},
+		.v_sync_line_aft_pxl_4 = {0xff, 0xff},
+		.v_sync_line_aft_pxl_5 = {0xff, 0xff},
+		.v_sync_line_aft_pxl_6 = {0xff, 0xff},
+		.vact_space_1 = {0xff, 0xff},
+		.vact_space_2 = {0xff, 0xff},
+		.vact_space_3 = {0xff, 0xff},
+		.vact_space_4 = {0xff, 0xff},
+		.vact_space_5 = {0xff, 0xff},
+		.vact_space_6 = {0xff, 0xff},
+		/* other don't care */
+	},
+	.tg = {
+		0x00, /* cmd */
+		0x98, 0x08, /* h_fsz */
+		0x18, 0x01, 0x80, 0x07, /* hact */
+		0x65, 0x04, /* v_fsz */
+		0x01, 0x00, 0x33, 0x02, /* vsync */
+		0x2d, 0x00, 0x38, 0x04, /* vact */
+		0x33, 0x02, /* field_chg */
+		0x48, 0x02, /* vact_st2 */
+		0x00, 0x00, /* vact_st3 */
+		0x00, 0x00, /* vact_st4 */
+		0x01, 0x00, 0x01, 0x00, /* vsync top/bot */
+		0x01, 0x00, 0x33, 0x02, /* field top/bot */
+		0x00, /* 3d FP */
+	},
+};
+
 static const struct hdmi_preset_conf hdmi_conf_1080p50 = {
 	.core = {
 		.h_blank = {0xd0, 0x02},
@@ -864,6 +929,7 @@ static const struct hdmi_conf hdmi_confs[] = {
 	{ 1280, 720, 60, false, hdmiphy_conf74_25, &hdmi_conf_720p60 },
 	{ 1920, 1080, 50, true, hdmiphy_conf74_25, &hdmi_conf_1080i50 },
 	{ 1920, 1080, 60, true, hdmiphy_conf74_25, &hdmi_conf_1080i60 },
+	{ 1920, 1080, 30, false, hdmiphy_conf74_176, &hdmi_conf_1080p30 },
 	{ 1920, 1080, 50, false, hdmiphy_conf148_5, &hdmi_conf_1080p50 },
 	{ 1920, 1080, 60, false, hdmiphy_conf148_5, &hdmi_conf_1080p60 },
 };
@@ -1194,12 +1260,8 @@ static int hdmi_conf_index(struct hdmi_context *hdata,
 static bool hdmi_is_connected(void *ctx)
 {
 	struct hdmi_context *hdata = ctx;
-	u32 val = hdmi_reg_read(hdata, HDMI_HPD_STATUS);
-
-	if (val)
-		return true;
 
-	return false;
+	return hdata->hpd;
 }
 
 static int hdmi_get_edid(void *ctx, struct drm_connector *connector,
@@ -1215,10 +1277,12 @@ static int hdmi_get_edid(void *ctx, struct drm_connector *connector,
 
 	raw_edid = drm_get_edid(connector, hdata->ddc_port->adapter);
 	if (raw_edid) {
+		hdata->dvi_mode = !drm_detect_hdmi_monitor(raw_edid);
 		memcpy(edid, raw_edid, min((1 + raw_edid->extensions)
 					* EDID_LENGTH, len));
-		DRM_DEBUG_KMS("width[%d] x height[%d]\n",
-				raw_edid->width_cm, raw_edid->height_cm);
+		DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n",
+			(hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"),
+			raw_edid->width_cm, raw_edid->height_cm);
 	} else {
 		return -ENODEV;
 	}
@@ -1289,28 +1353,6 @@ static int hdmi_check_timing(void *ctx, void *timing)
 		return hdmi_v14_check_timing(check_timing);
 }
 
-static int hdmi_display_power_on(void *ctx, int mode)
-{
-	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
-	switch (mode) {
-	case DRM_MODE_DPMS_ON:
-		DRM_DEBUG_KMS("hdmi [on]\n");
-		break;
-	case DRM_MODE_DPMS_STANDBY:
-		break;
-	case DRM_MODE_DPMS_SUSPEND:
-		break;
-	case DRM_MODE_DPMS_OFF:
-		DRM_DEBUG_KMS("hdmi [off]\n");
-		break;
-	default:
-		break;
-	}
-
-	return 0;
-}
-
 static void hdmi_set_acr(u32 freq, u8 *acr)
 {
 	u32 n, cts;
@@ -1463,10 +1505,7 @@ static void hdmi_audio_init(struct hdmi_context *hdata)
 
 static void hdmi_audio_control(struct hdmi_context *hdata, bool onoff)
 {
-	u32 mod;
-
-	mod = hdmi_reg_read(hdata, HDMI_MODE_SEL);
-	if (mod & HDMI_DVI_MODE_EN)
+	if (hdata->dvi_mode)
 		return;
 
 	hdmi_reg_writeb(hdata, HDMI_AUI_CON, onoff ? 2 : 0);
@@ -1478,9 +1517,6 @@ static void hdmi_conf_reset(struct hdmi_context *hdata)
 {
 	u32 reg;
 
-	/* disable hpd handle for drm */
-	hdata->hpd_handle = false;
-
 	if (hdata->is_v13)
 		reg = HDMI_V13_CORE_RSTOUT;
 	else
@@ -1491,16 +1527,10 @@ static void hdmi_conf_reset(struct hdmi_context *hdata)
 	mdelay(10);
 	hdmi_reg_writemask(hdata, reg, ~0, HDMI_CORE_SW_RSTOUT);
 	mdelay(10);
-
-	/* enable hpd handle for drm */
-	hdata->hpd_handle = true;
 }
 
 static void hdmi_conf_init(struct hdmi_context *hdata)
 {
-	/* disable hpd handle for drm */
-	hdata->hpd_handle = false;
-
 	/* enable HPD interrupts */
 	hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
 		HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
@@ -1514,6 +1544,14 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
 	/* disable bluescreen */
 	hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
 
+	if (hdata->dvi_mode) {
+		/* choose DVI mode */
+		hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
+				HDMI_MODE_DVI_EN, HDMI_MODE_MASK);
+		hdmi_reg_writeb(hdata, HDMI_CON_2,
+				HDMI_VID_PREAMBLE_DIS | HDMI_GUARD_BAND_DIS);
+	}
+
 	if (hdata->is_v13) {
 		/* choose bluescreen (fecal) color */
 		hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_0, 0x12);
@@ -1535,9 +1573,6 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
 		hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(1), 2 << 5);
 		hdmi_reg_writemask(hdata, HDMI_CON_1, 2, 3 << 5);
 	}
-
-	/* enable hpd handle for drm */
-	hdata->hpd_handle = true;
 }
 
 static void hdmi_v13_timing_apply(struct hdmi_context *hdata)
@@ -1890,8 +1925,11 @@ static void hdmi_conf_apply(struct hdmi_context *hdata)
 	hdmiphy_conf_reset(hdata);
 	hdmiphy_conf_apply(hdata);
 
+	mutex_lock(&hdata->hdmi_mutex);
 	hdmi_conf_reset(hdata);
 	hdmi_conf_init(hdata);
+	mutex_unlock(&hdata->hdmi_mutex);
+
 	hdmi_audio_init(hdata);
 
 	/* setting core registers */
@@ -1971,20 +2009,86 @@ static void hdmi_commit(void *ctx)
 	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
 
 	hdmi_conf_apply(hdata);
+}
+
+static void hdmi_poweron(struct hdmi_context *hdata)
+{
+	struct hdmi_resources *res = &hdata->res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	mutex_lock(&hdata->hdmi_mutex);
+	if (hdata->powered) {
+		mutex_unlock(&hdata->hdmi_mutex);
+		return;
+	}
+
+	hdata->powered = true;
+
+	if (hdata->cfg_hpd)
+		hdata->cfg_hpd(true);
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	pm_runtime_get_sync(hdata->dev);
+
+	regulator_bulk_enable(res->regul_count, res->regul_bulk);
+	clk_enable(res->hdmiphy);
+	clk_enable(res->hdmi);
+	clk_enable(res->sclk_hdmi);
+}
+
+static void hdmi_poweroff(struct hdmi_context *hdata)
+{
+	struct hdmi_resources *res = &hdata->res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	mutex_lock(&hdata->hdmi_mutex);
+	if (!hdata->powered)
+		goto out;
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	/*
+	 * The TV power domain needs any condition of hdmiphy to turn off and
+	 * its reset state seems to meet the condition.
+	 */
+	hdmiphy_conf_reset(hdata);
+
+	clk_disable(res->sclk_hdmi);
+	clk_disable(res->hdmi);
+	clk_disable(res->hdmiphy);
+	regulator_bulk_disable(res->regul_count, res->regul_bulk);
+
+	pm_runtime_put_sync(hdata->dev);
 
-	hdata->enabled = true;
+	mutex_lock(&hdata->hdmi_mutex);
+	if (hdata->cfg_hpd)
+		hdata->cfg_hpd(false);
+
+	hdata->powered = false;
+
+out:
+	mutex_unlock(&hdata->hdmi_mutex);
 }
 
-static void hdmi_disable(void *ctx)
+static void hdmi_dpms(void *ctx, int mode)
 {
 	struct hdmi_context *hdata = ctx;
 
 	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
 
-	if (hdata->enabled) {
-		hdmi_audio_control(hdata, false);
-		hdmiphy_conf_reset(hdata);
-		hdmi_conf_reset(hdata);
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		hdmi_poweron(hdata);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		hdmi_poweroff(hdata);
+		break;
+	default:
+		DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
+		break;
 	}
 }
 
@@ -1993,30 +2097,35 @@ static struct exynos_hdmi_ops hdmi_ops = {
 	.is_connected	= hdmi_is_connected,
 	.get_edid	= hdmi_get_edid,
 	.check_timing	= hdmi_check_timing,
-	.power_on	= hdmi_display_power_on,
 
 	/* manager */
 	.mode_fixup	= hdmi_mode_fixup,
 	.mode_set	= hdmi_mode_set,
 	.get_max_resol	= hdmi_get_max_resol,
 	.commit		= hdmi_commit,
-	.disable	= hdmi_disable,
+	.dpms		= hdmi_dpms,
 };
 
-/*
- * Handle hotplug events outside the interrupt handler proper.
- */
-static void hdmi_hotplug_func(struct work_struct *work)
+static irqreturn_t hdmi_external_irq_thread(int irq, void *arg)
 {
-	struct hdmi_context *hdata =
-		container_of(work, struct hdmi_context, hotplug_work);
-	struct exynos_drm_hdmi_context *ctx =
-		(struct exynos_drm_hdmi_context *)hdata->parent_ctx;
+	struct exynos_drm_hdmi_context *ctx = arg;
+	struct hdmi_context *hdata = ctx->ctx;
+
+	if (!hdata->get_hpd)
+		goto out;
+
+	mutex_lock(&hdata->hdmi_mutex);
+	hdata->hpd = hdata->get_hpd();
+	mutex_unlock(&hdata->hdmi_mutex);
 
-	drm_helper_hpd_irq_event(ctx->drm_dev);
+	if (ctx->drm_dev)
+		drm_helper_hpd_irq_event(ctx->drm_dev);
+
+out:
+	return IRQ_HANDLED;
 }
 
-static irqreturn_t hdmi_irq_handler(int irq, void *arg)
+static irqreturn_t hdmi_internal_irq_thread(int irq, void *arg)
 {
 	struct exynos_drm_hdmi_context *ctx = arg;
 	struct hdmi_context *hdata = ctx->ctx;
@@ -2025,19 +2134,28 @@ static irqreturn_t hdmi_irq_handler(int irq, void *arg)
 	intc_flag = hdmi_reg_read(hdata, HDMI_INTC_FLAG);
 	/* clearing flags for HPD plug/unplug */
 	if (intc_flag & HDMI_INTC_FLAG_HPD_UNPLUG) {
-		DRM_DEBUG_KMS("unplugged, handling:%d\n", hdata->hpd_handle);
+		DRM_DEBUG_KMS("unplugged\n");
 		hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
 			HDMI_INTC_FLAG_HPD_UNPLUG);
 	}
 	if (intc_flag & HDMI_INTC_FLAG_HPD_PLUG) {
-		DRM_DEBUG_KMS("plugged, handling:%d\n", hdata->hpd_handle);
+		DRM_DEBUG_KMS("plugged\n");
 		hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
 			HDMI_INTC_FLAG_HPD_PLUG);
 	}
 
-	if (ctx->drm_dev && hdata->hpd_handle)
-		queue_work(hdata->wq, &hdata->hotplug_work);
+	mutex_lock(&hdata->hdmi_mutex);
+	hdata->hpd = hdmi_reg_read(hdata, HDMI_HPD_STATUS);
+	if (hdata->powered && hdata->hpd) {
+		mutex_unlock(&hdata->hdmi_mutex);
+		goto out;
+	}
+	mutex_unlock(&hdata->hdmi_mutex);
+
+	if (ctx->drm_dev)
+		drm_helper_hpd_irq_event(ctx->drm_dev);
 
+out:
 	return IRQ_HANDLED;
 }
 
@@ -2131,68 +2249,6 @@ static int hdmi_resources_cleanup(struct hdmi_context *hdata)
 	return 0;
 }
 
-static void hdmi_resource_poweron(struct hdmi_context *hdata)
-{
-	struct hdmi_resources *res = &hdata->res;
-
-	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
-	/* turn HDMI power on */
-	regulator_bulk_enable(res->regul_count, res->regul_bulk);
-	/* power-on hdmi physical interface */
-	clk_enable(res->hdmiphy);
-	/* turn clocks on */
-	clk_enable(res->hdmi);
-	clk_enable(res->sclk_hdmi);
-
-	hdmiphy_conf_reset(hdata);
-	hdmi_conf_reset(hdata);
-	hdmi_conf_init(hdata);
-	hdmi_audio_init(hdata);
-}
-
-static void hdmi_resource_poweroff(struct hdmi_context *hdata)
-{
-	struct hdmi_resources *res = &hdata->res;
-
-	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
-	/* turn clocks off */
-	clk_disable(res->sclk_hdmi);
-	clk_disable(res->hdmi);
-	/* power-off hdmiphy */
-	clk_disable(res->hdmiphy);
-	/* turn HDMI power off */
-	regulator_bulk_disable(res->regul_count, res->regul_bulk);
-}
-
-static int hdmi_runtime_suspend(struct device *dev)
-{
-	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
-
-	DRM_DEBUG_KMS("%s\n", __func__);
-
-	hdmi_resource_poweroff(ctx->ctx);
-
-	return 0;
-}
-
-static int hdmi_runtime_resume(struct device *dev)
-{
-	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
-
-	DRM_DEBUG_KMS("%s\n", __func__);
-
-	hdmi_resource_poweron(ctx->ctx);
-
-	return 0;
-}
-
-static const struct dev_pm_ops hdmi_pm_ops = {
-	.runtime_suspend = hdmi_runtime_suspend,
-	.runtime_resume	 = hdmi_runtime_resume,
-};
-
 static struct i2c_client *hdmi_ddc, *hdmi_hdmiphy;
 
 void hdmi_attach_ddc_client(struct i2c_client *ddc)
@@ -2237,15 +2293,16 @@ static int __devinit hdmi_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	mutex_init(&hdata->hdmi_mutex);
+
 	drm_hdmi_ctx->ctx = (void *)hdata;
 	hdata->parent_ctx = (void *)drm_hdmi_ctx;
 
 	platform_set_drvdata(pdev, drm_hdmi_ctx);
 
 	hdata->is_v13 = pdata->is_v13;
-	hdata->default_win = pdata->default_win;
-	hdata->default_timing = &pdata->timing;
-	hdata->default_bpp = pdata->bpp;
+	hdata->cfg_hpd = pdata->cfg_hpd;
+	hdata->get_hpd = pdata->get_hpd;
 	hdata->dev = dev;
 
 	ret = hdmi_resources_init(hdata);
@@ -2294,41 +2351,49 @@ static int __devinit hdmi_probe(struct platform_device *pdev)
 
 	hdata->hdmiphy_port = hdmi_hdmiphy;
 
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (res == NULL) {
-		DRM_ERROR("get interrupt resource failed.\n");
-		ret = -ENXIO;
+	hdata->external_irq = platform_get_irq_byname(pdev, "external_irq");
+	if (hdata->external_irq < 0) {
+		DRM_ERROR("failed to get platform irq\n");
+		ret = hdata->external_irq;
 		goto err_hdmiphy;
 	}
 
-	/* create workqueue and hotplug work */
-	hdata->wq = alloc_workqueue("exynos-drm-hdmi",
-			WQ_UNBOUND | WQ_NON_REENTRANT, 1);
-	if (hdata->wq == NULL) {
-		DRM_ERROR("Failed to create workqueue.\n");
-		ret = -ENOMEM;
+	hdata->internal_irq = platform_get_irq_byname(pdev, "internal_irq");
+	if (hdata->internal_irq < 0) {
+		DRM_ERROR("failed to get platform internal irq\n");
+		ret = hdata->internal_irq;
 		goto err_hdmiphy;
 	}
-	INIT_WORK(&hdata->hotplug_work, hdmi_hotplug_func);
 
-	/* register hpd interrupt */
-	ret = request_irq(res->start, hdmi_irq_handler, 0, "drm_hdmi",
-				drm_hdmi_ctx);
+	ret = request_threaded_irq(hdata->external_irq, NULL,
+			hdmi_external_irq_thread, IRQF_TRIGGER_RISING |
+			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+			"hdmi_external", drm_hdmi_ctx);
 	if (ret) {
-		DRM_ERROR("request interrupt failed.\n");
-		goto err_workqueue;
+		DRM_ERROR("failed to register hdmi internal interrupt\n");
+		goto err_hdmiphy;
+	}
+
+	if (hdata->cfg_hpd)
+		hdata->cfg_hpd(false);
+
+	ret = request_threaded_irq(hdata->internal_irq, NULL,
+			hdmi_internal_irq_thread, IRQF_ONESHOT,
+			"hdmi_internal", drm_hdmi_ctx);
+	if (ret) {
+		DRM_ERROR("failed to register hdmi internal interrupt\n");
+		goto err_free_irq;
 	}
-	hdata->irq = res->start;
 
 	/* register specific callbacks to common hdmi. */
 	exynos_hdmi_ops_register(&hdmi_ops);
 
-	hdmi_resource_poweron(hdata);
+	pm_runtime_enable(dev);
 
 	return 0;
 
-err_workqueue:
-	destroy_workqueue(hdata->wq);
+err_free_irq:
+	free_irq(hdata->external_irq, drm_hdmi_ctx);
 err_hdmiphy:
 	i2c_del_driver(&hdmiphy_driver);
 err_ddc:
@@ -2348,18 +2413,15 @@ err_data:
 
 static int __devexit hdmi_remove(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct exynos_drm_hdmi_context *ctx = platform_get_drvdata(pdev);
 	struct hdmi_context *hdata = ctx->ctx;
 
 	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
 
-	hdmi_resource_poweroff(hdata);
+	pm_runtime_disable(dev);
 
-	disable_irq(hdata->irq);
-	free_irq(hdata->irq, hdata);
-
-	cancel_work_sync(&hdata->hotplug_work);
-	destroy_workqueue(hdata->wq);
+	free_irq(hdata->internal_irq, hdata);
 
 	hdmi_resources_cleanup(hdata);
 
@@ -2378,12 +2440,43 @@ static int __devexit hdmi_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int hdmi_suspend(struct device *dev)
+{
+	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
+	struct hdmi_context *hdata = ctx->ctx;
+
+	disable_irq(hdata->internal_irq);
+	disable_irq(hdata->external_irq);
+
+	hdata->hpd = false;
+	if (ctx->drm_dev)
+		drm_helper_hpd_irq_event(ctx->drm_dev);
+
+	hdmi_poweroff(hdata);
+
+	return 0;
+}
+
+static int hdmi_resume(struct device *dev)
+{
+	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
+	struct hdmi_context *hdata = ctx->ctx;
+
+	enable_irq(hdata->external_irq);
+	enable_irq(hdata->internal_irq);
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(hdmi_pm_ops, hdmi_suspend, hdmi_resume);
+
 struct platform_driver hdmi_driver = {
 	.probe		= hdmi_probe,
 	.remove		= __devexit_p(hdmi_remove),
 	.driver		= {
 		.name	= "exynos4-hdmi",
 		.owner	= THIS_MODULE,
-		.pm = &hdmi_pm_ops,
+		.pm	= &hdmi_pm_ops,
 	},
 };
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index e15438c01129..68ef01028375 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -37,9 +37,6 @@
 #include "exynos_drm_drv.h"
 #include "exynos_drm_hdmi.h"
 
-#define MIXER_WIN_NR		3
-#define MIXER_DEFAULT_WIN	0
-
 #define get_mixer_context(dev)	platform_get_drvdata(to_platform_device(dev))
 
 struct hdmi_win_data {
@@ -57,13 +54,14 @@ struct hdmi_win_data {
 	unsigned int		fb_y;
 	unsigned int		fb_width;
 	unsigned int		fb_height;
+	unsigned int		src_width;
+	unsigned int		src_height;
 	unsigned int		mode_width;
 	unsigned int		mode_height;
 	unsigned int		scan_flags;
 };
 
 struct mixer_resources {
-	struct device		*dev;
 	int			irq;
 	void __iomem		*mixer_regs;
 	void __iomem		*vp_regs;
@@ -76,10 +74,13 @@ struct mixer_resources {
 };
 
 struct mixer_context {
-	unsigned int		irq;
+	struct device		*dev;
 	int			pipe;
 	bool			interlace;
+	bool			powered;
+	u32			int_en;
 
+	struct mutex		mixer_mutex;
 	struct mixer_resources	mixer_res;
 	struct hdmi_win_data	win_data[MIXER_WIN_NR];
 };
@@ -352,10 +353,7 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	struct mixer_resources *res = &ctx->mixer_res;
 	unsigned long flags;
 	struct hdmi_win_data *win_data;
-	unsigned int full_width, full_height, width, height;
 	unsigned int x_ratio, y_ratio;
-	unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
-	unsigned int mode_width, mode_height;
 	unsigned int buf_num;
 	dma_addr_t luma_addr[2], chroma_addr[2];
 	bool tiled_mode = false;
@@ -382,21 +380,9 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 		return;
 	}
 
-	full_width = win_data->fb_width;
-	full_height = win_data->fb_height;
-	width = win_data->crtc_width;
-	height = win_data->crtc_height;
-	mode_width = win_data->mode_width;
-	mode_height = win_data->mode_height;
-
 	/* scaling feature: (src << 16) / dst */
-	x_ratio = (width << 16) / width;
-	y_ratio = (height << 16) / height;
-
-	src_x_offset = win_data->fb_x;
-	src_y_offset = win_data->fb_y;
-	dst_x_offset = win_data->crtc_x;
-	dst_y_offset = win_data->crtc_y;
+	x_ratio = (win_data->src_width << 16) / win_data->crtc_width;
+	y_ratio = (win_data->src_height << 16) / win_data->crtc_height;
 
 	if (buf_num == 2) {
 		luma_addr[0] = win_data->dma_addr;
@@ -404,7 +390,7 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	} else {
 		luma_addr[0] = win_data->dma_addr;
 		chroma_addr[0] = win_data->dma_addr
-			+ (full_width * full_height);
+			+ (win_data->fb_width * win_data->fb_height);
 	}
 
 	if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) {
@@ -413,8 +399,8 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 			luma_addr[1] = luma_addr[0] + 0x40;
 			chroma_addr[1] = chroma_addr[0] + 0x40;
 		} else {
-			luma_addr[1] = luma_addr[0] + full_width;
-			chroma_addr[1] = chroma_addr[0] + full_width;
+			luma_addr[1] = luma_addr[0] + win_data->fb_width;
+			chroma_addr[1] = chroma_addr[0] + win_data->fb_width;
 		}
 	} else {
 		ctx->interlace = false;
@@ -435,26 +421,26 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK);
 
 	/* setting size of input image */
-	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(full_width) |
-		VP_IMG_VSIZE(full_height));
+	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(win_data->fb_width) |
+		VP_IMG_VSIZE(win_data->fb_height));
 	/* chroma height has to reduced by 2 to avoid chroma distorions */
-	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(full_width) |
-		VP_IMG_VSIZE(full_height / 2));
+	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(win_data->fb_width) |
+		VP_IMG_VSIZE(win_data->fb_height / 2));
 
-	vp_reg_write(res, VP_SRC_WIDTH, width);
-	vp_reg_write(res, VP_SRC_HEIGHT, height);
+	vp_reg_write(res, VP_SRC_WIDTH, win_data->src_width);
+	vp_reg_write(res, VP_SRC_HEIGHT, win_data->src_height);
 	vp_reg_write(res, VP_SRC_H_POSITION,
-			VP_SRC_H_POSITION_VAL(src_x_offset));
-	vp_reg_write(res, VP_SRC_V_POSITION, src_y_offset);
+			VP_SRC_H_POSITION_VAL(win_data->fb_x));
+	vp_reg_write(res, VP_SRC_V_POSITION, win_data->fb_y);
 
-	vp_reg_write(res, VP_DST_WIDTH, width);
-	vp_reg_write(res, VP_DST_H_POSITION, dst_x_offset);
+	vp_reg_write(res, VP_DST_WIDTH, win_data->crtc_width);
+	vp_reg_write(res, VP_DST_H_POSITION, win_data->crtc_x);
 	if (ctx->interlace) {
-		vp_reg_write(res, VP_DST_HEIGHT, height / 2);
-		vp_reg_write(res, VP_DST_V_POSITION, dst_y_offset / 2);
+		vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height / 2);
+		vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y / 2);
 	} else {
-		vp_reg_write(res, VP_DST_HEIGHT, height);
-		vp_reg_write(res, VP_DST_V_POSITION, dst_y_offset);
+		vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height);
+		vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y);
 	}
 
 	vp_reg_write(res, VP_H_RATIO, x_ratio);
@@ -468,8 +454,8 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	vp_reg_write(res, VP_TOP_C_PTR, chroma_addr[0]);
 	vp_reg_write(res, VP_BOT_C_PTR, chroma_addr[1]);
 
-	mixer_cfg_scan(ctx, mode_height);
-	mixer_cfg_rgb_fmt(ctx, mode_height);
+	mixer_cfg_scan(ctx, win_data->mode_height);
+	mixer_cfg_rgb_fmt(ctx, win_data->mode_height);
 	mixer_cfg_layer(ctx, win, true);
 	mixer_run(ctx);
 
@@ -484,10 +470,8 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 	struct mixer_resources *res = &ctx->mixer_res;
 	unsigned long flags;
 	struct hdmi_win_data *win_data;
-	unsigned int full_width, width, height;
 	unsigned int x_ratio, y_ratio;
 	unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
-	unsigned int mode_width, mode_height;
 	dma_addr_t dma_addr;
 	unsigned int fmt;
 	u32 val;
@@ -510,26 +494,17 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 		fmt = ARGB8888;
 	}
 
-	dma_addr = win_data->dma_addr;
-	full_width = win_data->fb_width;
-	width = win_data->crtc_width;
-	height = win_data->crtc_height;
-	mode_width = win_data->mode_width;
-	mode_height = win_data->mode_height;
-
 	/* 2x scaling feature */
 	x_ratio = 0;
 	y_ratio = 0;
 
-	src_x_offset = win_data->fb_x;
-	src_y_offset = win_data->fb_y;
 	dst_x_offset = win_data->crtc_x;
 	dst_y_offset = win_data->crtc_y;
 
 	/* converting dma address base and source offset */
-	dma_addr = dma_addr
-		+ (src_x_offset * win_data->bpp >> 3)
-		+ (src_y_offset * full_width * win_data->bpp >> 3);
+	dma_addr = win_data->dma_addr
+		+ (win_data->fb_x * win_data->bpp >> 3)
+		+ (win_data->fb_y * win_data->fb_width * win_data->bpp >> 3);
 	src_x_offset = 0;
 	src_y_offset = 0;
 
@@ -546,10 +521,10 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 		MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK);
 
 	/* setup geometry */
-	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), full_width);
+	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), win_data->fb_width);
 
-	val  = MXR_GRP_WH_WIDTH(width);
-	val |= MXR_GRP_WH_HEIGHT(height);
+	val  = MXR_GRP_WH_WIDTH(win_data->crtc_width);
+	val |= MXR_GRP_WH_HEIGHT(win_data->crtc_height);
 	val |= MXR_GRP_WH_H_SCALE(x_ratio);
 	val |= MXR_GRP_WH_V_SCALE(y_ratio);
 	mixer_reg_write(res, MXR_GRAPHIC_WH(win), val);
@@ -567,8 +542,8 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 	/* set buffer address to mixer */
 	mixer_reg_write(res, MXR_GRAPHIC_BASE(win), dma_addr);
 
-	mixer_cfg_scan(ctx, mode_height);
-	mixer_cfg_rgb_fmt(ctx, mode_height);
+	mixer_cfg_scan(ctx, win_data->mode_height);
+	mixer_cfg_rgb_fmt(ctx, win_data->mode_height);
 	mixer_cfg_layer(ctx, win, true);
 	mixer_run(ctx);
 
@@ -591,6 +566,116 @@ static void vp_win_reset(struct mixer_context *ctx)
 	WARN(tries == 0, "failed to reset Video Processor\n");
 }
 
+static void mixer_win_reset(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	unsigned long flags;
+	u32 val; /* value stored to register */
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(ctx, false);
+
+	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK);
+
+	/* set output in RGB888 mode */
+	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_OUT_RGB888, MXR_CFG_OUT_MASK);
+
+	/* 16 beat burst in DMA */
+	mixer_reg_writemask(res, MXR_STATUS, MXR_STATUS_16_BURST,
+		MXR_STATUS_BURST_MASK);
+
+	/* setting default layer priority: layer1 > layer0 > video
+	 * because typical usage scenario would be
+	 * layer1 - OSD
+	 * layer0 - framebuffer
+	 * video - video overlay
+	 */
+	val = MXR_LAYER_CFG_GRP1_VAL(3);
+	val |= MXR_LAYER_CFG_GRP0_VAL(2);
+	val |= MXR_LAYER_CFG_VP_VAL(1);
+	mixer_reg_write(res, MXR_LAYER_CFG, val);
+
+	/* setting background color */
+	mixer_reg_write(res, MXR_BG_COLOR0, 0x008080);
+	mixer_reg_write(res, MXR_BG_COLOR1, 0x008080);
+	mixer_reg_write(res, MXR_BG_COLOR2, 0x008080);
+
+	/* setting graphical layers */
+
+	val  = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */
+	val |= MXR_GRP_CFG_WIN_BLEND_EN;
+	val |= MXR_GRP_CFG_ALPHA_VAL(0xff); /* non-transparent alpha */
+
+	/* the same configuration for both layers */
+	mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val);
+
+	val |= MXR_GRP_CFG_BLEND_PRE_MUL;
+	val |= MXR_GRP_CFG_PIXEL_BLEND_EN;
+	mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val);
+
+	/* configuration of Video Processor Registers */
+	vp_win_reset(ctx);
+	vp_default_filter(res);
+
+	/* disable all layers */
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE);
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE);
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE);
+
+	mixer_vsync_set_update(ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+}
+
+static void mixer_poweron(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	mutex_lock(&ctx->mixer_mutex);
+	if (ctx->powered) {
+		mutex_unlock(&ctx->mixer_mutex);
+		return;
+	}
+	ctx->powered = true;
+	mutex_unlock(&ctx->mixer_mutex);
+
+	pm_runtime_get_sync(ctx->dev);
+
+	clk_enable(res->mixer);
+	clk_enable(res->vp);
+	clk_enable(res->sclk_mixer);
+
+	mixer_reg_write(res, MXR_INT_EN, ctx->int_en);
+	mixer_win_reset(ctx);
+}
+
+static void mixer_poweroff(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	mutex_lock(&ctx->mixer_mutex);
+	if (!ctx->powered)
+		goto out;
+	mutex_unlock(&ctx->mixer_mutex);
+
+	ctx->int_en = mixer_reg_read(res, MXR_INT_EN);
+
+	clk_disable(res->mixer);
+	clk_disable(res->vp);
+	clk_disable(res->sclk_mixer);
+
+	pm_runtime_put_sync(ctx->dev);
+
+	mutex_lock(&ctx->mixer_mutex);
+	ctx->powered = false;
+
+out:
+	mutex_unlock(&ctx->mixer_mutex);
+}
+
 static int mixer_enable_vblank(void *ctx, int pipe)
 {
 	struct mixer_context *mixer_ctx = ctx;
@@ -618,6 +703,27 @@ static void mixer_disable_vblank(void *ctx)
 	mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC);
 }
 
+static void mixer_dpms(void *ctx, int mode)
+{
+	struct mixer_context *mixer_ctx = ctx;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		mixer_poweron(mixer_ctx);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		mixer_poweroff(mixer_ctx);
+		break;
+	default:
+		DRM_DEBUG_KMS("unknown dpms mode: %d\n", mode);
+		break;
+	}
+}
+
 static void mixer_win_mode_set(void *ctx,
 			      struct exynos_drm_overlay *overlay)
 {
@@ -643,7 +749,7 @@ static void mixer_win_mode_set(void *ctx,
 		win = MIXER_DEFAULT_WIN;
 
 	if (win < 0 || win > MIXER_WIN_NR) {
-		DRM_ERROR("overlay plane[%d] is wrong\n", win);
+		DRM_ERROR("mixer window[%d] is wrong\n", win);
 		return;
 	}
 
@@ -665,6 +771,8 @@ static void mixer_win_mode_set(void *ctx,
 	win_data->fb_y = overlay->fb_y;
 	win_data->fb_width = overlay->fb_width;
 	win_data->fb_height = overlay->fb_height;
+	win_data->src_width = overlay->src_width;
+	win_data->src_height = overlay->src_height;
 
 	win_data->mode_width = overlay->mode_width;
 	win_data->mode_height = overlay->mode_height;
@@ -672,44 +780,26 @@ static void mixer_win_mode_set(void *ctx,
 	win_data->scan_flags = overlay->scan_flag;
 }
 
-static void mixer_win_commit(void *ctx, int zpos)
+static void mixer_win_commit(void *ctx, int win)
 {
 	struct mixer_context *mixer_ctx = ctx;
-	int win = zpos;
 
 	DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win);
 
-	if (win == DEFAULT_ZPOS)
-		win = MIXER_DEFAULT_WIN;
-
-	if (win < 0 || win > MIXER_WIN_NR) {
-		DRM_ERROR("overlay plane[%d] is wrong\n", win);
-		return;
-	}
-
 	if (win > 1)
 		vp_video_buffer(mixer_ctx, win);
 	else
 		mixer_graph_buffer(mixer_ctx, win);
 }
 
-static void mixer_win_disable(void *ctx, int zpos)
+static void mixer_win_disable(void *ctx, int win)
 {
 	struct mixer_context *mixer_ctx = ctx;
 	struct mixer_resources *res = &mixer_ctx->mixer_res;
 	unsigned long flags;
-	int win = zpos;
 
 	DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win);
 
-	if (win == DEFAULT_ZPOS)
-		win = MIXER_DEFAULT_WIN;
-
-	if (win < 0 || win > MIXER_WIN_NR) {
-		DRM_ERROR("overlay plane[%d] is wrong\n", win);
-		return;
-	}
-
 	spin_lock_irqsave(&res->reg_slock, flags);
 	mixer_vsync_set_update(mixer_ctx, false);
 
@@ -723,6 +813,7 @@ static struct exynos_mixer_ops mixer_ops = {
 	/* manager */
 	.enable_vblank		= mixer_enable_vblank,
 	.disable_vblank		= mixer_disable_vblank,
+	.dpms			= mixer_dpms,
 
 	/* overlay */
 	.win_mode_set		= mixer_win_mode_set,
@@ -773,7 +864,7 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
 	struct exynos_drm_hdmi_context *drm_hdmi_ctx = arg;
 	struct mixer_context *ctx = drm_hdmi_ctx->ctx;
 	struct mixer_resources *res = &ctx->mixer_res;
-	u32 val, val_base;
+	u32 val, base, shadow;
 
 	spin_lock(&res->reg_slock);
 
@@ -784,12 +875,14 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
 	if (val & MXR_INT_STATUS_VSYNC) {
 		/* interlace scan need to check shadow register */
 		if (ctx->interlace) {
-			val_base = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0));
-			if (ctx->win_data[0].dma_addr != val_base)
+			base = mixer_reg_read(res, MXR_GRAPHIC_BASE(0));
+			shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0));
+			if (base != shadow)
 				goto out;
 
-			val_base = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1));
-			if (ctx->win_data[1].dma_addr != val_base)
+			base = mixer_reg_read(res, MXR_GRAPHIC_BASE(1));
+			shadow = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1));
+			if (base != shadow)
 				goto out;
 		}
 
@@ -811,117 +904,6 @@ out:
 	return IRQ_HANDLED;
 }
 
-static void mixer_win_reset(struct mixer_context *ctx)
-{
-	struct mixer_resources *res = &ctx->mixer_res;
-	unsigned long flags;
-	u32 val; /* value stored to register */
-
-	spin_lock_irqsave(&res->reg_slock, flags);
-	mixer_vsync_set_update(ctx, false);
-
-	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK);
-
-	/* set output in RGB888 mode */
-	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_OUT_RGB888, MXR_CFG_OUT_MASK);
-
-	/* 16 beat burst in DMA */
-	mixer_reg_writemask(res, MXR_STATUS, MXR_STATUS_16_BURST,
-		MXR_STATUS_BURST_MASK);
-
-	/* setting default layer priority: layer1 > layer0 > video
-	 * because typical usage scenario would be
-	 * layer1 - OSD
-	 * layer0 - framebuffer
-	 * video - video overlay
-	 */
-	val = MXR_LAYER_CFG_GRP1_VAL(3);
-	val |= MXR_LAYER_CFG_GRP0_VAL(2);
-	val |= MXR_LAYER_CFG_VP_VAL(1);
-	mixer_reg_write(res, MXR_LAYER_CFG, val);
-
-	/* setting background color */
-	mixer_reg_write(res, MXR_BG_COLOR0, 0x008080);
-	mixer_reg_write(res, MXR_BG_COLOR1, 0x008080);
-	mixer_reg_write(res, MXR_BG_COLOR2, 0x008080);
-
-	/* setting graphical layers */
-
-	val  = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */
-	val |= MXR_GRP_CFG_WIN_BLEND_EN;
-	val |= MXR_GRP_CFG_ALPHA_VAL(0xff); /* non-transparent alpha */
-
-	/* the same configuration for both layers */
-	mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val);
-
-	val |= MXR_GRP_CFG_BLEND_PRE_MUL;
-	val |= MXR_GRP_CFG_PIXEL_BLEND_EN;
-	mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val);
-
-	/* configuration of Video Processor Registers */
-	vp_win_reset(ctx);
-	vp_default_filter(res);
-
-	/* disable all layers */
-	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE);
-	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE);
-	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE);
-
-	mixer_vsync_set_update(ctx, true);
-	spin_unlock_irqrestore(&res->reg_slock, flags);
-}
-
-static void mixer_resource_poweron(struct mixer_context *ctx)
-{
-	struct mixer_resources *res = &ctx->mixer_res;
-
-	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
-	clk_enable(res->mixer);
-	clk_enable(res->vp);
-	clk_enable(res->sclk_mixer);
-
-	mixer_win_reset(ctx);
-}
-
-static void mixer_resource_poweroff(struct mixer_context *ctx)
-{
-	struct mixer_resources *res = &ctx->mixer_res;
-
-	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
-	clk_disable(res->mixer);
-	clk_disable(res->vp);
-	clk_disable(res->sclk_mixer);
-}
-
-static int mixer_runtime_resume(struct device *dev)
-{
-	struct exynos_drm_hdmi_context *ctx = get_mixer_context(dev);
-
-	DRM_DEBUG_KMS("resume - start\n");
-
-	mixer_resource_poweron(ctx->ctx);
-
-	return 0;
-}
-
-static int mixer_runtime_suspend(struct device *dev)
-{
-	struct exynos_drm_hdmi_context *ctx = get_mixer_context(dev);
-
-	DRM_DEBUG_KMS("suspend - start\n");
-
-	mixer_resource_poweroff(ctx->ctx);
-
-	return 0;
-}
-
-static const struct dev_pm_ops mixer_pm_ops = {
-	.runtime_suspend = mixer_runtime_suspend,
-	.runtime_resume	 = mixer_runtime_resume,
-};
-
 static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx,
 				 struct platform_device *pdev)
 {
@@ -931,7 +913,6 @@ static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx,
 	struct resource *res;
 	int ret;
 
-	mixer_res->dev = dev;
 	spin_lock_init(&mixer_res->reg_slock);
 
 	mixer_res->mixer = clk_get(dev, "mixer");
@@ -1027,7 +1008,6 @@ fail:
 		clk_put(mixer_res->vp);
 	if (!IS_ERR_OR_NULL(mixer_res->mixer))
 		clk_put(mixer_res->mixer);
-	mixer_res->dev = NULL;
 	return ret;
 }
 
@@ -1035,7 +1015,6 @@ static void mixer_resources_cleanup(struct mixer_context *ctx)
 {
 	struct mixer_resources *res = &ctx->mixer_res;
 
-	disable_irq(res->irq);
 	free_irq(res->irq, ctx);
 
 	iounmap(res->vp_regs);
@@ -1064,6 +1043,9 @@ static int __devinit mixer_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
+	mutex_init(&ctx->mixer_mutex);
+
+	ctx->dev = &pdev->dev;
 	drm_hdmi_ctx->ctx = (void *)ctx;
 
 	platform_set_drvdata(pdev, drm_hdmi_ctx);
@@ -1076,7 +1058,7 @@ static int __devinit mixer_probe(struct platform_device *pdev)
 	/* register specific callback point to common hdmi. */
 	exynos_mixer_ops_register(&mixer_ops);
 
-	mixer_resource_poweron(ctx);
+	pm_runtime_enable(dev);
 
 	return 0;
 
@@ -1095,12 +1077,27 @@ static int mixer_remove(struct platform_device *pdev)
 
 	dev_info(dev, "remove successful\n");
 
-	mixer_resource_poweroff(ctx);
+	pm_runtime_disable(&pdev->dev);
+
 	mixer_resources_cleanup(ctx);
 
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int mixer_suspend(struct device *dev)
+{
+	struct exynos_drm_hdmi_context *drm_hdmi_ctx = get_mixer_context(dev);
+	struct mixer_context *ctx = drm_hdmi_ctx->ctx;
+
+	mixer_poweroff(ctx);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mixer_pm_ops, mixer_suspend, NULL);
+
 struct platform_driver mixer_driver = {
 	.driver = {
 		.name = "s5p-mixer",
diff --git a/drivers/gpu/drm/exynos/regs-hdmi.h b/drivers/gpu/drm/exynos/regs-hdmi.h
index 3c04bea842ce..9cc7c5e9718c 100644
--- a/drivers/gpu/drm/exynos/regs-hdmi.h
+++ b/drivers/gpu/drm/exynos/regs-hdmi.h
@@ -138,14 +138,16 @@
 #define HDMI_ASP_MASK			(1 << 2)
 #define HDMI_EN				(1 << 0)
 
+/* HDMI_CON_2 */
+#define HDMI_VID_PREAMBLE_DIS		(1 << 5)
+#define HDMI_GUARD_BAND_DIS		(1 << 1)
+
 /* HDMI_PHY_STATUS */
 #define HDMI_PHY_STATUS_READY		(1 << 0)
 
 /* HDMI_MODE_SEL */
 #define HDMI_MODE_HDMI_EN		(1 << 1)
 #define HDMI_MODE_DVI_EN		(1 << 0)
-#define HDMI_DVI_MODE_EN		(1)
-#define HDMI_DVI_MODE_DIS		(0)
 #define HDMI_MODE_MASK			(3 << 0)
 
 /* HDMI_TG_CMD */