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From: Inki Dae <inki.dae@samsung.com>
To: airlied@linux.ie, dri-devel@lists.freedesktop.org
Subject: [PATCH 2/5] drm/exynos: add component framework support
Date: Thu, 17 Apr 2014 14:50:26 +0900
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This patch adds component framework support to resolve
the probe order issue.

Until now, exynos drm had used codes specific to exynos drm
to resolve that issue so with this patch, the specific codes
are removed.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
---
 drivers/gpu/drm/exynos/exynos_dp_core.c  |   45 +++--
 drivers/gpu/drm/exynos/exynos_drm_core.c |  216 ++++-----------------
 drivers/gpu/drm/exynos/exynos_drm_crtc.c |   17 ++
 drivers/gpu/drm/exynos/exynos_drm_crtc.h |    4 +
 drivers/gpu/drm/exynos/exynos_drm_dpi.c  |   16 +-
 drivers/gpu/drm/exynos/exynos_drm_drv.c  |  310 +++++++++++++++++++-----------
 drivers/gpu/drm/exynos/exynos_drm_drv.h  |   89 +++++----
 drivers/gpu/drm/exynos/exynos_drm_dsi.c  |  110 +++++++----
 drivers/gpu/drm/exynos/exynos_drm_fimd.c |   87 +++++++--
 drivers/gpu/drm/exynos/exynos_drm_vidi.c |  101 ++++++++--
 drivers/gpu/drm/exynos/exynos_hdmi.c     |   59 +++---
 drivers/gpu/drm/exynos/exynos_mixer.c    |   54 ++++--
 12 files changed, 643 insertions(+), 465 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/exynos/exynos_dp_core.c
index aed533b..a97840c 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/exynos/exynos_dp_core.c
@@ -18,6 +18,7 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/of.h>
+#include <linux/component.h>
 #include <linux/phy/phy.h>
 #include <video/of_display_timing.h>
 #include <video/of_videomode.h>
@@ -969,16 +970,6 @@ static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
 	.best_encoder = exynos_dp_best_encoder,
 };
 
-static int exynos_dp_initialize(struct exynos_drm_display *display,
-				struct drm_device *drm_dev)
-{
-	struct exynos_dp_device *dp = display->ctx;
-
-	dp->drm_dev = drm_dev;
-
-	return 0;
-}
-
 static bool find_bridge(const char *compat, struct bridge_init *bridge)
 {
 	bridge->client = NULL;
@@ -1106,7 +1097,6 @@ static void exynos_dp_dpms(struct exynos_drm_display *display, int mode)
 }
 
 static struct exynos_drm_display_ops exynos_dp_display_ops = {
-	.initialize = exynos_dp_initialize,
 	.create_connector = exynos_dp_create_connector,
 	.dpms = exynos_dp_dpms,
 };
@@ -1230,8 +1220,10 @@ static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
 	return 0;
 }
 
-static int exynos_dp_probe(struct platform_device *pdev)
+static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
 {
+	struct platform_device *pdev = to_platform_device(dev);
+	struct drm_device *drm_dev = data;
 	struct resource *res;
 	struct exynos_dp_device *dp;
 
@@ -1293,21 +1285,40 @@ static int exynos_dp_probe(struct platform_device *pdev)
 	}
 	disable_irq(dp->irq);
 
+	dp->drm_dev = drm_dev;
 	exynos_dp_display.ctx = dp;
 
 	platform_set_drvdata(pdev, &exynos_dp_display);
-	exynos_drm_display_register(&exynos_dp_display);
 
-	return 0;
+	return exynos_drm_create_enc_conn(drm_dev, &exynos_dp_display);
 }
 
-static int exynos_dp_remove(struct platform_device *pdev)
+static void exynos_dp_unbind(struct device *dev, struct device *master,
+				void *data)
 {
-	struct exynos_drm_display *display = platform_get_drvdata(pdev);
+	struct exynos_drm_display *display = dev_get_drvdata(dev);
+	struct exynos_dp_device *dp = display->ctx;
+	struct drm_encoder *encoder = dp->encoder;
 
 	exynos_dp_dpms(display, DRM_MODE_DPMS_OFF);
-	exynos_drm_display_unregister(&exynos_dp_display);
 
+	encoder->funcs->destroy(encoder);
+	drm_connector_cleanup(&dp->connector);
+}
+
+static const struct component_ops exynos_dp_ops = {
+	.bind	= exynos_dp_bind,
+	.unbind	= exynos_dp_unbind,
+};
+
+static int exynos_dp_probe(struct platform_device *pdev)
+{
+	return exynos_drm_component_add(&pdev->dev, &exynos_dp_ops);
+}
+
+static int exynos_dp_remove(struct platform_device *pdev)
+{
+	exynos_drm_component_del(&pdev->dev, &exynos_dp_ops);
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_core.c b/drivers/gpu/drm/exynos/exynos_drm_core.c
index 0e9e06c..4c9f972 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_core.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_core.c
@@ -19,21 +19,19 @@
 #include "exynos_drm_fbdev.h"
 
 static LIST_HEAD(exynos_drm_subdrv_list);
-static LIST_HEAD(exynos_drm_manager_list);
-static LIST_HEAD(exynos_drm_display_list);
 
-static int exynos_drm_create_enc_conn(struct drm_device *dev,
+int exynos_drm_create_enc_conn(struct drm_device *dev,
 					struct exynos_drm_display *display)
 {
 	struct drm_encoder *encoder;
-	struct exynos_drm_manager *manager;
 	int ret;
 	unsigned long possible_crtcs = 0;
 
-	/* Find possible crtcs for this display */
-	list_for_each_entry(manager, &exynos_drm_manager_list, list)
-		if (manager->type == display->type)
-			possible_crtcs |= 1 << manager->pipe;
+	ret = exynos_drm_crtc_get_pipe_from_type(dev, display->type);
+	if (ret < 0)
+		return ret;
+
+	possible_crtcs |= 1 << ret;
 
 	/* create and initialize a encoder for this sub driver. */
 	encoder = exynos_drm_encoder_create(dev, display, possible_crtcs);
@@ -57,127 +55,29 @@ err_destroy_encoder:
 	return ret;
 }
 
-static int exynos_drm_subdrv_probe(struct drm_device *dev,
-					struct exynos_drm_subdrv *subdrv)
-{
-	if (subdrv->probe) {
-		int ret;
-
-		subdrv->drm_dev = dev;
-
-		/*
-		 * this probe callback would be called by sub driver
-		 * after setting of all resources to this sub driver,
-		 * such as clock, irq and register map are done or by load()
-		 * of exynos drm driver.
-		 *
-		 * P.S. note that this driver is considered for modularization.
-		 */
-		ret = subdrv->probe(dev, subdrv->dev);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
-}
-
-static void exynos_drm_subdrv_remove(struct drm_device *dev,
-				      struct exynos_drm_subdrv *subdrv)
-{
-	if (subdrv->remove)
-		subdrv->remove(dev, subdrv->dev);
-}
-
-int exynos_drm_initialize_managers(struct drm_device *dev)
+int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
 {
-	struct exynos_drm_manager *manager, *n;
-	int ret, pipe = 0;
-
-	list_for_each_entry(manager, &exynos_drm_manager_list, list) {
-		if (manager->ops->initialize) {
-			ret = manager->ops->initialize(manager, dev, pipe);
-			if (ret) {
-				DRM_ERROR("Mgr init [%d] failed with %d\n",
-						manager->type, ret);
-				goto err;
-			}
-		}
+	if (!subdrv)
+		return -EINVAL;
 
-		manager->drm_dev = dev;
-		manager->pipe = pipe++;
+	list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
 
-		ret = exynos_drm_crtc_create(manager);
-		if (ret) {
-			DRM_ERROR("CRTC create [%d] failed with %d\n",
-					manager->type, ret);
-			goto err;
-		}
-	}
 	return 0;
-
-err:
-	list_for_each_entry_safe(manager, n, &exynos_drm_manager_list, list) {
-		if (pipe-- > 0)
-			exynos_drm_manager_unregister(manager);
-		else
-			list_del(&manager->list);
-	}
-	return ret;
-}
-
-void exynos_drm_remove_managers(struct drm_device *dev)
-{
-	struct exynos_drm_manager *manager, *n;
-
-	list_for_each_entry_safe(manager, n, &exynos_drm_manager_list, list)
-		exynos_drm_manager_unregister(manager);
 }
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register);
 
-int exynos_drm_initialize_displays(struct drm_device *dev)
+int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
 {
-	struct exynos_drm_display *display, *n;
-	int ret, initialized = 0;
-
-	list_for_each_entry(display, &exynos_drm_display_list, list) {
-		if (display->ops->initialize) {
-			ret = display->ops->initialize(display, dev);
-			if (ret) {
-				DRM_ERROR("Display init [%d] failed with %d\n",
-						display->type, ret);
-				goto err;
-			}
-		}
+	if (!subdrv)
+		return -EINVAL;
 
-		initialized++;
+	list_del(&subdrv->list);
 
-		ret = exynos_drm_create_enc_conn(dev, display);
-		if (ret) {
-			DRM_ERROR("Encoder create [%d] failed with %d\n",
-					display->type, ret);
-			goto err;
-		}
-	}
 	return 0;
-
-err:
-	list_for_each_entry_safe(display, n, &exynos_drm_display_list, list) {
-		if (initialized-- > 0)
-			exynos_drm_display_unregister(display);
-		else
-			list_del(&display->list);
-	}
-	return ret;
-}
-
-void exynos_drm_remove_displays(struct drm_device *dev)
-{
-	struct exynos_drm_display *display, *n;
-
-	list_for_each_entry_safe(display, n, &exynos_drm_display_list, list)
-		exynos_drm_display_unregister(display);
 }
+EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
 
-int exynos_drm_device_register(struct drm_device *dev)
+int exynos_drm_device_subdrv_probe(struct drm_device *dev)
 {
 	struct exynos_drm_subdrv *subdrv, *n;
 	int err;
@@ -186,19 +86,28 @@ int exynos_drm_device_register(struct drm_device *dev)
 		return -EINVAL;
 
 	list_for_each_entry_safe(subdrv, n, &exynos_drm_subdrv_list, list) {
-		err = exynos_drm_subdrv_probe(dev, subdrv);
-		if (err) {
-			DRM_DEBUG("exynos drm subdrv probe failed.\n");
-			list_del(&subdrv->list);
-			continue;
+		if (subdrv->probe) {
+			subdrv->drm_dev = dev;
+
+			/*
+			 * this probe callback would be called by sub driver
+			 * after setting of all resources to this sub driver,
+			 * such as clock, irq and register map are done.
+			 */
+			err = subdrv->probe(dev, subdrv->dev);
+			if (err) {
+				DRM_DEBUG("exynos drm subdrv probe failed.\n");
+				list_del(&subdrv->list);
+				continue;
+			}
 		}
 	}
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(exynos_drm_device_register);
+EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_probe);
 
-int exynos_drm_device_unregister(struct drm_device *dev)
+int exynos_drm_device_subdrv_remove(struct drm_device *dev)
 {
 	struct exynos_drm_subdrv *subdrv;
 
@@ -208,66 +117,13 @@ int exynos_drm_device_unregister(struct drm_device *dev)
 	}
 
 	list_for_each_entry(subdrv, &exynos_drm_subdrv_list, list) {
-		exynos_drm_subdrv_remove(dev, subdrv);
+		if (subdrv->remove)
+			subdrv->remove(dev, subdrv->dev);
 	}
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(exynos_drm_device_unregister);
-
-int exynos_drm_manager_register(struct exynos_drm_manager *manager)
-{
-	BUG_ON(!manager->ops);
-	list_add_tail(&manager->list, &exynos_drm_manager_list);
-	return 0;
-}
-
-int exynos_drm_manager_unregister(struct exynos_drm_manager *manager)
-{
-	if (manager->ops->remove)
-		manager->ops->remove(manager);
-
-	list_del(&manager->list);
-	return 0;
-}
-
-int exynos_drm_display_register(struct exynos_drm_display *display)
-{
-	BUG_ON(!display->ops);
-	list_add_tail(&display->list, &exynos_drm_display_list);
-	return 0;
-}
-
-int exynos_drm_display_unregister(struct exynos_drm_display *display)
-{
-	if (display->ops->remove)
-		display->ops->remove(display);
-
-	list_del(&display->list);
-	return 0;
-}
-
-int exynos_drm_subdrv_register(struct exynos_drm_subdrv *subdrv)
-{
-	if (!subdrv)
-		return -EINVAL;
-
-	list_add_tail(&subdrv->list, &exynos_drm_subdrv_list);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(exynos_drm_subdrv_register);
-
-int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *subdrv)
-{
-	if (!subdrv)
-		return -EINVAL;
-
-	list_del(&subdrv->list);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(exynos_drm_subdrv_unregister);
+EXPORT_SYMBOL_GPL(exynos_drm_device_subdrv_remove);
 
 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file)
 {
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index e930d4f..36a80d9 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -367,6 +367,7 @@ int exynos_drm_crtc_create(struct exynos_drm_manager *manager)
 		return -ENOMEM;
 	}
 
+	manager->crtc = &exynos_crtc->drm_crtc;
 	crtc = &exynos_crtc->drm_crtc;
 
 	private->crtc[manager->pipe] = crtc;
@@ -490,3 +491,19 @@ void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb)
 			manager->ops->wait_for_vblank(manager);
 	}
 }
+
+int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
+					unsigned int out_type)
+{
+	struct drm_crtc *crtc;
+
+	list_for_each_entry(crtc, &drm_dev->mode_config.crtc_list, head) {
+		struct exynos_drm_crtc *exynos_crtc;
+
+		exynos_crtc = to_exynos_crtc(crtc);
+		if (exynos_crtc->manager->type == out_type)
+			return exynos_crtc->manager->pipe;
+	}
+
+	return -EPERM;
+}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
index c27b66c..9f74b10 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
@@ -32,4 +32,8 @@ void exynos_drm_crtc_plane_commit(struct drm_crtc *crtc, int zpos);
 void exynos_drm_crtc_plane_enable(struct drm_crtc *crtc, int zpos);
 void exynos_drm_crtc_plane_disable(struct drm_crtc *crtc, int zpos);
 
+/* This function gets pipe value to crtc device matched with out_type. */
+int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
+					unsigned int out_type);
+
 #endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
index 2b09c7c..c1f4b35 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c
@@ -255,7 +255,7 @@ enum {
 	FIMD_PORT_WRB,
 };
 
-static struct device_node *exynos_dpi_of_find_panel_node(struct device *dev)
+struct device_node *exynos_dpi_of_find_panel_node(struct device *dev)
 {
 	struct device_node *np, *ep;
 
@@ -308,7 +308,7 @@ static int exynos_dpi_parse_dt(struct exynos_dpi *ctx)
 	return 0;
 }
 
-int exynos_dpi_probe(struct device *dev)
+int exynos_dpi_probe(struct drm_device *drm_dev, struct device *dev)
 {
 	struct exynos_dpi *ctx;
 	int ret;
@@ -325,15 +325,17 @@ int exynos_dpi_probe(struct device *dev)
 	if (ret < 0)
 		return ret;
 
-	exynos_drm_display_register(&exynos_dpi_display);
-
-	return 0;
+	return exynos_drm_create_enc_conn(drm_dev, &exynos_dpi_display);
 }
 
-int exynos_dpi_remove(struct device *dev)
+int exynos_dpi_remove(struct drm_device *drm_dev, struct device *dev)
 {
+	struct drm_encoder *encoder = exynos_dpi_display.encoder;
+	struct exynos_dpi *ctx = exynos_dpi_display.ctx;
+
 	exynos_dpi_dpms(&exynos_dpi_display, DRM_MODE_DPMS_OFF);
-	exynos_drm_display_unregister(&exynos_dpi_display);
+	encoder->funcs->destroy(encoder);
+	drm_connector_cleanup(&ctx->connector);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index b3ba043..dc45881 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -16,6 +16,7 @@
 #include <drm/drm_crtc_helper.h>
 
 #include <linux/anon_inodes.h>
+#include <linux/component.h>
 
 #include <drm/exynos_drm.h>
 
@@ -40,9 +41,16 @@
 
 #define VBLANK_OFF_DELAY	50000
 
-/* platform device pointer for eynos drm device. */
 static struct platform_device *exynos_drm_pdev;
 
+static DEFINE_MUTEX(drm_component_lock);
+static LIST_HEAD(drm_component_list);
+
+struct component_dev {
+	struct list_head list;
+	struct device *dev;
+};
+
 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 {
 	struct exynos_drm_private *private;
@@ -73,38 +81,21 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 
 	exynos_drm_mode_config_init(dev);
 
-	ret = exynos_drm_initialize_managers(dev);
-	if (ret)
-		goto err_mode_config_cleanup;
-
 	for (nr = 0; nr < MAX_PLANE; nr++) {
 		struct drm_plane *plane;
 		unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
 
 		plane = exynos_plane_init(dev, possible_crtcs, false);
 		if (!plane)
-			goto err_manager_cleanup;
+			goto err_mode_config_cleanup;
 	}
 
-	ret = exynos_drm_initialize_displays(dev);
-	if (ret)
-		goto err_manager_cleanup;
-
 	/* init kms poll for handling hpd */
 	drm_kms_helper_poll_init(dev);
 
 	ret = drm_vblank_init(dev, MAX_CRTC);
 	if (ret)
-		goto err_display_cleanup;
-
-	/*
-	 * probe sub drivers such as display controller and hdmi driver,
-	 * that were registered at probe() of platform driver
-	 * to the sub driver and create encoder and connector for them.
-	 */
-	ret = exynos_drm_device_register(dev);
-	if (ret)
-		goto err_vblank;
+		goto err_mode_config_cleanup;
 
 	/* setup possible_clones. */
 	exynos_drm_encoder_setup(dev);
@@ -113,17 +104,25 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 
 	platform_set_drvdata(dev->platformdev, dev);
 
+	/* Try to bind all sub drivers. */
+	ret = component_bind_all(dev->dev, dev);
+	if (ret)
+		goto err_cleanup_vblank;
+
+	/* Probe non kms sub drivers. */
+	ret = exynos_drm_device_subdrv_probe(dev);
+	if (ret)
+		goto err_unbind_all;
+
 	/* force connectors detection */
 	drm_helper_hpd_irq_event(dev);
 
 	return 0;
 
-err_vblank:
+err_unbind_all:
+	component_unbind_all(dev->dev, dev);
+err_cleanup_vblank:
 	drm_vblank_cleanup(dev);
-err_display_cleanup:
-	exynos_drm_remove_displays(dev);
-err_manager_cleanup:
-	exynos_drm_remove_managers(dev);
 err_mode_config_cleanup:
 	drm_mode_config_cleanup(dev);
 	drm_release_iommu_mapping(dev);
@@ -135,17 +134,17 @@ err_free_private:
 
 static int exynos_drm_unload(struct drm_device *dev)
 {
+	exynos_drm_device_subdrv_remove(dev);
+
 	exynos_drm_fbdev_fini(dev);
-	exynos_drm_device_unregister(dev);
 	drm_vblank_cleanup(dev);
 	drm_kms_helper_poll_fini(dev);
-	exynos_drm_remove_displays(dev);
-	exynos_drm_remove_managers(dev);
 	drm_mode_config_cleanup(dev);
 
 	drm_release_iommu_mapping(dev);
 	kfree(dev->dev_private);
 
+	component_unbind_all(dev->dev, dev);
 	dev->dev_private = NULL;
 
 	return 0;
@@ -355,27 +354,6 @@ static struct drm_driver exynos_drm_driver = {
 	.minor	= DRIVER_MINOR,
 };
 
-static int exynos_drm_platform_probe(struct platform_device *pdev)
-{
-	int ret;
-
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-	if (ret)
-		return ret;
-
-	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
-
-	return drm_platform_init(&exynos_drm_driver, pdev);
-}
-
-static int exynos_drm_platform_remove(struct platform_device *pdev)
-{
-	drm_put_dev(platform_get_drvdata(pdev));
-
-	return 0;
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int exynos_drm_sys_suspend(struct device *dev)
 {
@@ -430,24 +408,120 @@ static const struct dev_pm_ops exynos_drm_pm_ops = {
 			exynos_drm_runtime_resume, NULL)
 };
 
-static struct platform_driver exynos_drm_platform_driver = {
-	.probe		= exynos_drm_platform_probe,
-	.remove		= exynos_drm_platform_remove,
-	.driver		= {
-		.owner	= THIS_MODULE,
-		.name	= "exynos-drm",
-		.pm	= &exynos_drm_pm_ops,
-	},
+int exynos_drm_component_add(struct device *dev,
+				const struct component_ops *ops)
+{
+	struct component_dev *cdev;
+	int ret;
+
+	cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
+	if (!cdev)
+		return -ENOMEM;
+
+	ret = component_add(dev, ops);
+	if (ret) {
+		kfree(cdev);
+		return ret;
+	}
+
+	cdev->dev = dev;
+
+	mutex_lock(&drm_component_lock);
+	list_add_tail(&cdev->list, &drm_component_list);
+	mutex_unlock(&drm_component_lock);
+
+	return 0;
+}
+
+void exynos_drm_component_del(struct device *dev,
+				const struct component_ops *ops)
+{
+	struct component_dev *cdev, *next;
+
+	mutex_lock(&drm_component_lock);
+
+	list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
+		if (dev == cdev->dev) {
+			list_del(&cdev->list);
+			kfree(cdev);
+			mutex_unlock(&drm_component_lock);
+			break;
+		}
+	}
+
+	mutex_unlock(&drm_component_lock);
+
+	component_del(dev, ops);
+}
+
+static int compare_of(struct device *dev, void *data)
+{
+	return dev == (struct device *)data;
+}
+
+static int exynos_drm_add_components(struct device *dev, struct master *m)
+{
+	unsigned int attached_cnt = 0;
+	struct component_dev *cdev;
+
+	mutex_lock(&drm_component_lock);
+
+	list_for_each_entry(cdev, &drm_component_list, list) {
+		int ret;
+
+		mutex_unlock(&drm_component_lock);
+
+		ret = component_master_add_child(m, compare_of, cdev->dev);
+		if (!ret)
+			attached_cnt++;
+
+		mutex_lock(&drm_component_lock);
+	}
+
+	mutex_unlock(&drm_component_lock);
+
+	if (!attached_cnt)
+		return -ENXIO;
+
+	return 0;
+}
+
+static int exynos_drm_bind(struct device *dev)
+{
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+
+	return drm_platform_init(&exynos_drm_driver, to_platform_device(dev));
+}
+
+static void exynos_drm_unbind(struct device *dev)
+{
+	drm_put_dev(dev_get_drvdata(dev));
+}
+
+static const struct component_master_ops exynos_drm_ops = {
+	.add_components = exynos_drm_add_components,
+	.bind		= exynos_drm_bind,
+	.unbind		= exynos_drm_unbind,
 };
 
-static int __init exynos_drm_init(void)
+static int exynos_drm_platform_probe(struct platform_device *pdev)
 {
 	int ret;
 
+	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls);
+
+#ifdef CONFIG_DRM_EXYNOS_FIMD
+	ret = platform_driver_register(&fimd_driver);
+	if (ret < 0)
+		return ret;
+#endif
+
 #ifdef CONFIG_DRM_EXYNOS_DP
 	ret = platform_driver_register(&dp_driver);
 	if (ret < 0)
-		return ret;
+		goto err_unregister_fimd_drv;
 #endif
 
 #ifdef CONFIG_DRM_EXYNOS_DSI
@@ -456,23 +530,11 @@ static int __init exynos_drm_init(void)
 		goto err_unregister_dp_drv;
 #endif
 
-#ifdef CONFIG_DRM_EXYNOS_FIMD
-	ret = platform_driver_register(&fimd_driver);
-	if (ret < 0)
-		goto err_unregister_dsi_drv;
-#endif
-
 #ifdef CONFIG_DRM_EXYNOS_HDMI
-	ret = platform_driver_register(&hdmi_driver);
-	if (ret < 0)
-		goto err_unregister_fimd_drv;
 	ret = platform_driver_register(&mixer_driver);
 	if (ret < 0)
-		goto err_unregister_hdmi_drv;
-#endif
-
-#ifdef CONFIG_DRM_EXYNOS_VIDI
-	ret = platform_driver_register(&vidi_driver);
+		goto err_unregister_dsi_drv;
+	ret = platform_driver_register(&hdmi_driver);
 	if (ret < 0)
 		goto err_unregister_mixer_drv;
 #endif
@@ -480,7 +542,7 @@ static int __init exynos_drm_init(void)
 #ifdef CONFIG_DRM_EXYNOS_G2D
 	ret = platform_driver_register(&g2d_driver);
 	if (ret < 0)
-		goto err_unregister_vidi_drv;
+		goto err_unregister_hdmi_drv;
 #endif
 
 #ifdef CONFIG_DRM_EXYNOS_FIMC
@@ -511,25 +573,13 @@ static int __init exynos_drm_init(void)
 		goto err_unregister_ipp_drv;
 #endif
 
-	ret = platform_driver_register(&exynos_drm_platform_driver);
+	ret = component_master_add(&pdev->dev, &exynos_drm_ops);
 	if (ret < 0)
-		goto err_unregister_ipp_dev;
-
-	exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
-				NULL, 0);
-	if (IS_ERR(exynos_drm_pdev)) {
-		ret = PTR_ERR(exynos_drm_pdev);
-		goto err_unregister_drm_drv;
-	}
+		DRM_DEBUG_KMS("re-tried by last sub driver probed later.\n");
 
 	return 0;
 
-err_unregister_drm_drv:
-	platform_driver_unregister(&exynos_drm_platform_driver);
-
-err_unregister_ipp_dev:
 #ifdef CONFIG_DRM_EXYNOS_IPP
-	exynos_platform_device_ipp_unregister();
 err_unregister_ipp_drv:
 	platform_driver_unregister(&ipp_driver);
 err_unregister_gsc_drv:
@@ -552,23 +602,13 @@ err_unregister_g2d_drv:
 
 #ifdef CONFIG_DRM_EXYNOS_G2D
 	platform_driver_unregister(&g2d_driver);
-err_unregister_vidi_drv:
-#endif
-
-#ifdef CONFIG_DRM_EXYNOS_VIDI
-	platform_driver_unregister(&vidi_driver);
-err_unregister_mixer_drv:
+err_unregister_hdmi_drv:
 #endif
 
 #ifdef CONFIG_DRM_EXYNOS_HDMI
-	platform_driver_unregister(&mixer_driver);
-err_unregister_hdmi_drv:
 	platform_driver_unregister(&hdmi_driver);
-err_unregister_fimd_drv:
-#endif
-
-#ifdef CONFIG_DRM_EXYNOS_FIMD
-	platform_driver_unregister(&fimd_driver);
+err_unregister_mixer_drv:
+	platform_driver_unregister(&mixer_driver);
 err_unregister_dsi_drv:
 #endif
 
@@ -579,16 +619,17 @@ err_unregister_dp_drv:
 
 #ifdef CONFIG_DRM_EXYNOS_DP
 	platform_driver_unregister(&dp_driver);
+err_unregister_fimd_drv:
+#endif
+
+#ifdef CONFIG_DRM_EXYNOS_FIMD
+	platform_driver_unregister(&fimd_driver);
 #endif
 	return ret;
 }
 
-static void __exit exynos_drm_exit(void)
+static int exynos_drm_platform_remove(struct platform_device *pdev)
 {
-	platform_device_unregister(exynos_drm_pdev);
-
-	platform_driver_unregister(&exynos_drm_platform_driver);
-
 #ifdef CONFIG_DRM_EXYNOS_IPP
 	exynos_platform_device_ipp_unregister();
 	platform_driver_unregister(&ipp_driver);
@@ -615,10 +656,6 @@ static void __exit exynos_drm_exit(void)
 	platform_driver_unregister(&hdmi_driver);
 #endif
 
-#ifdef CONFIG_DRM_EXYNOS_VIDI
-	platform_driver_unregister(&vidi_driver);
-#endif
-
 #ifdef CONFIG_DRM_EXYNOS_FIMD
 	platform_driver_unregister(&fimd_driver);
 #endif
@@ -630,6 +667,59 @@ static void __exit exynos_drm_exit(void)
 #ifdef CONFIG_DRM_EXYNOS_DP
 	platform_driver_unregister(&dp_driver);
 #endif
+	component_master_del(&pdev->dev, &exynos_drm_ops);
+	return 0;
+}
+
+static struct platform_driver exynos_drm_platform_driver = {
+	.probe	= exynos_drm_platform_probe,
+	.remove	= exynos_drm_platform_remove,
+	.driver	= {
+		.owner	= THIS_MODULE,
+		.name	= "exynos-drm",
+		.pm	= &exynos_drm_pm_ops,
+	},
+};
+
+static int exynos_drm_init(void)
+{
+	int ret;
+
+	exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
+								NULL, 0);
+	if (IS_ERR(exynos_drm_pdev))
+		return PTR_ERR(exynos_drm_pdev);
+
+#ifdef CONFIG_DRM_EXYNOS_VIDI
+	ret = exynos_drm_probe_vidi();
+	if (ret < 0)
+		goto err_unregister_pd;
+#endif
+
+	ret = platform_driver_register(&exynos_drm_platform_driver);
+	if (ret)
+		goto err_remove_vidi;
+
+	return 0;
+
+err_unregister_pd:
+	platform_device_unregister(exynos_drm_pdev);
+
+err_remove_vidi:
+#ifdef CONFIG_DRM_EXYNOS_VIDI
+	exynos_drm_remove_vidi();
+#endif
+
+	return ret;
+}
+
+static void exynos_drm_exit(void)
+{
+#ifdef CONFIG_DRM_EXYNOS_VIDI
+	exynos_drm_remove_vidi();
+#endif
+	platform_device_unregister(exynos_drm_pdev);
+	platform_driver_unregister(&exynos_drm_platform_driver);
 }
 
 module_init(exynos_drm_init);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 4c5cf68..3aee01b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -122,7 +122,6 @@ struct exynos_drm_overlay {
  * Exynos DRM Display Structure.
  *	- this structure is common to analog tv, digital tv and lcd panel.
  *
- * @initialize: initializes the display with drm_dev
  * @remove: cleans up the display for removal
  * @mode_fixup: fix mode data comparing to hw specific display mode.
  * @mode_set: convert drm_display_mode to hw specific display mode and
@@ -133,8 +132,6 @@ struct exynos_drm_overlay {
  */
 struct exynos_drm_display;
 struct exynos_drm_display_ops {
-	int (*initialize)(struct exynos_drm_display *display,
-				struct drm_device *drm_dev);
 	int (*create_connector)(struct exynos_drm_display *display,
 				struct drm_encoder *encoder);
 	void (*remove)(struct exynos_drm_display *display);
@@ -172,8 +169,6 @@ struct exynos_drm_display {
 /*
  * Exynos drm manager ops
  *
- * @initialize: initializes the manager with drm_dev
- * @remove: cleans up the manager for removal
  * @dpms: control device power.
  * @mode_fixup: fix mode data before applying it
  * @mode_set: set the given mode to the manager
@@ -189,9 +184,6 @@ struct exynos_drm_display {
  */
 struct exynos_drm_manager;
 struct exynos_drm_manager_ops {
-	int (*initialize)(struct exynos_drm_manager *mgr,
-				struct drm_device *drm_dev, int pipe);
-	void (*remove)(struct exynos_drm_manager *mgr);
 	void (*dpms)(struct exynos_drm_manager *mgr, int mode);
 	bool (*mode_fixup)(struct exynos_drm_manager *mgr,
 				const struct drm_display_mode *mode,
@@ -215,6 +207,7 @@ struct exynos_drm_manager_ops {
  * @list: the list entry for this manager
  * @type: one of EXYNOS_DISPLAY_TYPE_LCD and HDMI.
  * @drm_dev: pointer to the drm device
+ * @crtc: crtc object.
  * @pipe: the pipe number for this crtc/manager
  * @ops: pointer to callbacks for exynos drm specific functionality
  * @ctx: A pointer to the manager's implementation specific context
@@ -223,6 +216,7 @@ struct exynos_drm_manager {
 	struct list_head list;
 	enum exynos_drm_output_type type;
 	struct drm_device *drm_dev;
+	struct drm_crtc *crtc;
 	int pipe;
 	struct exynos_drm_manager_ops *ops;
 	void *ctx;
@@ -255,6 +249,7 @@ struct drm_exynos_file_private {
  * @da_space_size: size of device address space.
  *	if 0 then default value is used for it.
  * @da_space_order: order to device address space.
+ * @pipe: the pipe number for this crtc/manager.
  */
 struct exynos_drm_private {
 	struct drm_fb_helper *fb_helper;
@@ -273,6 +268,8 @@ struct exynos_drm_private {
 	unsigned long da_start;
 	unsigned long da_space_size;
 	unsigned long da_space_order;
+
+	unsigned int pipe;
 };
 
 /*
@@ -283,11 +280,11 @@ struct exynos_drm_private {
  * @drm_dev: pointer to drm_device and this pointer would be set
  *	when sub driver calls exynos_drm_subdrv_register().
  * @manager: subdrv has its own manager to control a hardware appropriately
- *	and we can access a hardware drawing on this manager.
+ *     and we can access a hardware drawing on this manager.
  * @probe: this callback would be called by exynos drm driver after
- *	subdrv is registered to it.
+ *     subdrv is registered to it.
  * @remove: this callback is used to release resources created
- *	by probe callback.
+ *     by probe callback.
  * @open: this would be called with drm device file open.
  * @close: this would be called with drm device file close.
  */
@@ -304,39 +301,14 @@ struct exynos_drm_subdrv {
 			struct drm_file *file);
 };
 
-/*
- * this function calls a probe callback registered to sub driver list and
- * create its own encoder and connector and then set drm_device object
- * to global one.
- */
-int exynos_drm_device_register(struct drm_device *dev);
-/*
- * this function calls a remove callback registered to sub driver list and
- * destroy its own encoder and connetor.
- */
-int exynos_drm_device_unregister(struct drm_device *dev);
-
-int exynos_drm_initialize_managers(struct drm_device *dev);
-void exynos_drm_remove_managers(struct drm_device *dev);
-int exynos_drm_initialize_displays(struct drm_device *dev);
-void exynos_drm_remove_displays(struct drm_device *dev);
-
-int exynos_drm_manager_register(struct exynos_drm_manager *manager);
-int exynos_drm_manager_unregister(struct exynos_drm_manager *manager);
-int exynos_drm_display_register(struct exynos_drm_display *display);
-int exynos_drm_display_unregister(struct exynos_drm_display *display);
-
-/*
- * this function would be called by sub drivers such as display controller
- * or hdmi driver to register this sub driver object to exynos drm driver
- * and when a sub driver is registered to exynos drm driver a probe callback
- * of the sub driver is called and creates its own encoder and connector.
- */
+ /* This function would be called by non kms drivers such as g2d and ipp. */
 int exynos_drm_subdrv_register(struct exynos_drm_subdrv *drm_subdrv);
 
 /* this function removes subdrv list from exynos drm driver */
 int exynos_drm_subdrv_unregister(struct exynos_drm_subdrv *drm_subdrv);
 
+int exynos_drm_device_subdrv_probe(struct drm_device *dev);
+int exynos_drm_device_subdrv_remove(struct drm_device *dev);
 int exynos_drm_subdrv_open(struct drm_device *dev, struct drm_file *file);
 void exynos_drm_subdrv_close(struct drm_device *dev, struct drm_file *file);
 
@@ -362,18 +334,45 @@ int exynos_platform_device_ipp_register(void);
 void exynos_platform_device_ipp_unregister(void);
 
 #ifdef CONFIG_DRM_EXYNOS_DPI
-int exynos_dpi_probe(struct device *dev);
-int exynos_dpi_remove(struct device *dev);
+int exynos_dpi_probe(struct drm_device *drm_dev, struct device *dev);
+int exynos_dpi_remove(struct drm_device *drm_dev, struct device *dev);
+struct device_node *exynos_dpi_of_find_panel_node(struct device *dev);
 #else
-static inline int exynos_dpi_probe(struct device *dev) { return 0; }
-static inline int exynos_dpi_remove(struct device *dev) { return 0; }
+static inline int exynos_dpi_probe(struct drm_device *drm_dev,
+					struct device *dev) { return 0; }
+static inline int exynos_dpi_remove(struct drm_device *drm_dev,
+					struct device *dev) { return 0; }
+static inline struct device_node
+			*exynos_dpi_of_find_panel_node(struct device *dev)
+{ return NULL; }
 #endif
 
+/*
+ * this function registers exynos drm vidi platform device/driver.
+ */
+int exynos_drm_probe_vidi(void);
+
+/*
+ * this function unregister exynos drm vidi platform device/driver.
+ */
+void exynos_drm_remove_vidi(void);
+
+/* This function creates a encoder and a connector, and initializes them. */
+int exynos_drm_create_enc_conn(struct drm_device *dev,
+				struct exynos_drm_display *display);
+
+struct component_ops;
+int exynos_drm_component_add(struct device *dev,
+				const struct component_ops *ops);
+
+void exynos_drm_component_del(struct device *dev,
+				const struct component_ops *ops);
+
+extern struct platform_driver fimd_driver;
 extern struct platform_driver dp_driver;
 extern struct platform_driver dsi_driver;
-extern struct platform_driver fimd_driver;
-extern struct platform_driver hdmi_driver;
 extern struct platform_driver mixer_driver;
+extern struct platform_driver hdmi_driver;
 extern struct platform_driver exynos_drm_common_hdmi_driver;
 extern struct platform_driver vidi_driver;
 extern struct platform_driver g2d_driver;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index eb73e3b..09cc4bae 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -19,6 +19,7 @@
 #include <linux/irq.h>
 #include <linux/phy/phy.h>
 #include <linux/regulator/consumer.h>
+#include <linux/component.h>
 
 #include <video/mipi_display.h>
 #include <video/videomode.h>
@@ -1378,6 +1379,74 @@ end:
 	return ret;
 }
 
+static int exynos_dsi_bind(struct device *dev, struct device *master,
+				void *data)
+{
+	struct drm_device *drm_dev = data;
+	struct exynos_dsi *dsi;
+	int ret;
+
+	ret = exynos_drm_create_enc_conn(drm_dev, &exynos_dsi_display);
+	if (ret) {
+		DRM_ERROR("Encoder create [%d] failed with %d\n",
+				exynos_dsi_display.type, ret);
+		return ret;
+	}
+
+	dsi = exynos_dsi_display.ctx;
+
+	return mipi_dsi_host_register(&dsi->dsi_host);
+}
+
+static void exynos_dsi_unbind(struct device *dev, struct device *master,
+				void *data)
+{
+	struct exynos_dsi *dsi = exynos_dsi_display.ctx;
+	struct drm_encoder *encoder = dsi->encoder;
+
+	exynos_dsi_dpms(&exynos_dsi_display, DRM_MODE_DPMS_OFF);
+
+	mipi_dsi_host_unregister(&dsi->dsi_host);
+
+	encoder->funcs->destroy(encoder);
+	drm_connector_cleanup(&dsi->connector);
+}
+
+#if CONFIG_PM_SLEEP
+static int exynos_dsi_resume(struct device *dev)
+{
+	struct exynos_dsi *dsi = exynos_dsi_display.ctx;
+
+	if (dsi->state & DSIM_STATE_ENABLED) {
+		dsi->state &= ~DSIM_STATE_ENABLED;
+		exynos_dsi_enable(dsi);
+	}
+
+	return 0;
+}
+
+static int exynos_dsi_suspend(struct device *dev)
+{
+	struct exynos_dsi *dsi = exynos_dsi_display.ctx;
+
+	if (dsi->state & DSIM_STATE_ENABLED) {
+		exynos_dsi_disable(dsi);
+		dsi->state |= DSIM_STATE_ENABLED;
+	}
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops exynos_dsi_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(exynos_dsi_suspend, exynos_dsi_resume)
+};
+
+static const struct component_ops exynos_dsi_component_ops = {
+	.bind	= exynos_dsi_bind,
+	.unbind	= exynos_dsi_unbind,
+};
+
 static int exynos_dsi_probe(struct platform_device *pdev)
 {
 	struct resource *res;
@@ -1455,53 +1524,16 @@ static int exynos_dsi_probe(struct platform_device *pdev)
 	exynos_dsi_display.ctx = dsi;
 
 	platform_set_drvdata(pdev, &exynos_dsi_display);
-	exynos_drm_display_register(&exynos_dsi_display);
 
-	return mipi_dsi_host_register(&dsi->dsi_host);
+	return exynos_drm_component_add(&pdev->dev, &exynos_dsi_component_ops);
 }
 
 static int exynos_dsi_remove(struct platform_device *pdev)
 {
-	struct exynos_dsi *dsi = exynos_dsi_display.ctx;
-
-	exynos_dsi_dpms(&exynos_dsi_display, DRM_MODE_DPMS_OFF);
-
-	exynos_drm_display_unregister(&exynos_dsi_display);
-	mipi_dsi_host_unregister(&dsi->dsi_host);
-
+	exynos_drm_component_del(&pdev->dev, &exynos_dsi_component_ops);
 	return 0;
 }
 
-#if CONFIG_PM_SLEEP
-static int exynos_dsi_resume(struct device *dev)
-{
-	struct exynos_dsi *dsi = exynos_dsi_display.ctx;
-
-	if (dsi->state & DSIM_STATE_ENABLED) {
-		dsi->state &= ~DSIM_STATE_ENABLED;
-		exynos_dsi_enable(dsi);
-	}
-
-	return 0;
-}
-
-static int exynos_dsi_suspend(struct device *dev)
-{
-	struct exynos_dsi *dsi = exynos_dsi_display.ctx;
-
-	if (dsi->state & DSIM_STATE_ENABLED) {
-		exynos_dsi_disable(dsi);
-		dsi->state |= DSIM_STATE_ENABLED;
-	}
-
-	return 0;
-}
-#endif
-
-static const struct dev_pm_ops exynos_dsi_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(exynos_dsi_suspend, exynos_dsi_resume)
-};
-
 static struct of_device_id exynos_dsi_of_match[] = {
 	{ .compatible = "samsung,exynos4210-mipi-dsi" },
 	{ }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 40fd6cc..bab870c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -19,10 +19,12 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/component.h>
 
 #include <video/of_display_timing.h>
 #include <video/of_videomode.h>
 #include <video/samsung_fimd.h>
+#include <drm/drm_panel.h>
 #include <drm/exynos_drm.h>
 
 #include "exynos_drm_drv.h"
@@ -144,12 +146,14 @@ static inline struct fimd_driver_data *drm_fimd_get_driver_data(
 }
 
 static int fimd_mgr_initialize(struct exynos_drm_manager *mgr,
-			struct drm_device *drm_dev, int pipe)
+			struct drm_device *drm_dev)
 {
 	struct fimd_context *ctx = mgr->ctx;
+	struct exynos_drm_private *priv;
+	priv = drm_dev->dev_private;
 
-	ctx->drm_dev = drm_dev;
-	ctx->pipe = pipe;
+	mgr->drm_dev = ctx->drm_dev = drm_dev;
+	mgr->pipe = ctx->pipe = priv->pipe++;
 
 	/*
 	 * enable drm irq mode.
@@ -803,8 +807,6 @@ static void fimd_dpms(struct exynos_drm_manager *mgr, int mode)
 }
 
 static struct exynos_drm_manager_ops fimd_manager_ops = {
-	.initialize = fimd_mgr_initialize,
-	.remove = fimd_mgr_remove,
 	.dpms = fimd_dpms,
 	.mode_fixup = fimd_mode_fixup,
 	.mode_set = fimd_mode_set,
@@ -849,10 +851,12 @@ out:
 	return IRQ_HANDLED;
 }
 
-static int fimd_probe(struct platform_device *pdev)
+static int fimd_bind(struct device *dev, struct device *master, void *data)
 {
-	struct device *dev = &pdev->dev;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct drm_device *drm_dev = data;
 	struct fimd_context *ctx;
+	struct device_node *dn;
 	struct resource *res;
 	int win;
 	int ret = -EINVAL;
@@ -910,11 +914,19 @@ static int fimd_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, &fimd_manager);
 
 	fimd_manager.ctx = ctx;
-	exynos_drm_manager_register(&fimd_manager);
-
-	exynos_dpi_probe(ctx->dev);
-
-	pm_runtime_enable(dev);
+	fimd_mgr_initialize(&fimd_manager, drm_dev);
+
+	exynos_drm_crtc_create(&fimd_manager);
+
+	dn = exynos_dpi_of_find_panel_node(&pdev->dev);
+	if (dn) {
+		/*
+		 * It should be called after exynos_drm_crtc_create call
+		 * because exynos_dpi_probe call will try to find same lcd
+		 * type of manager to setup possible_crtcs.
+		 */
+		exynos_dpi_probe(drm_dev, dev);
+	}
 
 	for (win = 0; win < WINDOWS_NR; win++)
 		fimd_clear_win(ctx, win);
@@ -922,18 +934,59 @@ static int fimd_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int fimd_remove(struct platform_device *pdev)
+static void fimd_unbind(struct device *dev, struct device *master,
+			void *data)
 {
-	struct exynos_drm_manager *mgr = platform_get_drvdata(pdev);
+	struct exynos_drm_manager *mgr = dev_get_drvdata(dev);
+	struct drm_crtc *crtc = mgr->crtc;
+	struct device_node *dn;
 
-	exynos_dpi_remove(&pdev->dev);
+	fimd_dpms(mgr, DRM_MODE_DPMS_OFF);
 
-	exynos_drm_manager_unregister(&fimd_manager);
+	dn = exynos_dpi_of_find_panel_node(dev);
+	if (dn)
+		exynos_dpi_remove(mgr->drm_dev, dev);
 
-	fimd_dpms(mgr, DRM_MODE_DPMS_OFF);
+	fimd_mgr_remove(mgr);
+
+	crtc->funcs->destroy(crtc);
+}
+
+static const struct component_ops fimd_component_ops = {
+	.bind	= fimd_bind,
+	.unbind = fimd_unbind,
+};
+
+static int fimd_probe(struct platform_device *pdev)
+{
+	struct device_node *dn;
+
+	/* Check if fimd node has port node. */
+	dn = exynos_dpi_of_find_panel_node(&pdev->dev);
+	if (dn) {
+		struct drm_panel *panel;
+
+		/*
+		 * Do not bind if there is the port node but a drm_panel
+		 * isn't added to panel_list yet.
+		 * In this case, fimd_probe will be called by defered probe
+		 * again after the drm_panel is added to panel_list.
+		 */
+		panel = of_drm_find_panel(dn);
+		if (!panel)
+			return -EPROBE_DEFER;
+	}
 
+	pm_runtime_enable(&pdev->dev);
+
+	return exynos_drm_component_add(&pdev->dev, &fimd_component_ops);
+}
+
+static int fimd_remove(struct platform_device *pdev)
+{
 	pm_runtime_disable(&pdev->dev);
 
+	exynos_drm_component_del(&pdev->dev, &fimd_component_ops);
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 7afead9..3319289 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -51,6 +51,7 @@ struct vidi_context {
 	struct drm_crtc			*crtc;
 	struct drm_encoder		*encoder;
 	struct drm_connector		connector;
+	struct exynos_drm_subdrv	subdrv;
 	struct vidi_win_data		win_data[WINDOWS_NR];
 	struct edid			*raw_edid;
 	unsigned int			clkdiv;
@@ -294,14 +295,13 @@ static void vidi_dpms(struct exynos_drm_manager *mgr, int mode)
 }
 
 static int vidi_mgr_initialize(struct exynos_drm_manager *mgr,
-			struct drm_device *drm_dev, int pipe)
+			struct drm_device *drm_dev)
 {
 	struct vidi_context *ctx = mgr->ctx;
+	struct exynos_drm_private *priv = drm_dev->dev_private;
 
-	DRM_ERROR("vidi initialize ct=%p dev=%p pipe=%d\n", ctx, drm_dev, pipe);
-
-	ctx->drm_dev = drm_dev;
-	ctx->pipe = pipe;
+	mgr->drm_dev = ctx->drm_dev = drm_dev;
+	mgr->pipe = ctx->pipe = priv->pipe++;
 
 	/*
 	 * enable drm irq mode.
@@ -324,7 +324,6 @@ static int vidi_mgr_initialize(struct exynos_drm_manager *mgr,
 }
 
 static struct exynos_drm_manager_ops vidi_manager_ops = {
-	.initialize = vidi_mgr_initialize,
 	.dpms = vidi_dpms,
 	.commit = vidi_commit,
 	.enable_vblank = vidi_enable_vblank,
@@ -586,13 +585,38 @@ static struct exynos_drm_display vidi_display = {
 	.ops = &vidi_display_ops,
 };
 
+static int vidi_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
+{
+	struct exynos_drm_manager *mgr = get_vidi_mgr(dev);
+	struct vidi_context *ctx = mgr->ctx;
+	struct drm_crtc *crtc = ctx->crtc;
+	int ret;
+
+	vidi_mgr_initialize(mgr, drm_dev);
+
+	ret = exynos_drm_crtc_create(&vidi_manager);
+	if (ret) {
+		DRM_ERROR("failed to create crtc.\n");
+		return ret;
+	}
+
+	ret = exynos_drm_create_enc_conn(drm_dev, &vidi_display);
+	if (ret) {
+		crtc->funcs->destroy(crtc);
+		DRM_ERROR("failed to create encoder and connector.\n");
+		return ret;
+	}
+
+	return 0;
+}
+
 static int vidi_probe(struct platform_device *pdev)
 {
-	struct device *dev = &pdev->dev;
+	struct exynos_drm_subdrv *subdrv;
 	struct vidi_context *ctx;
 	int ret;
 
-	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
@@ -607,28 +631,43 @@ static int vidi_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, &vidi_manager);
 
-	ret = device_create_file(dev, &dev_attr_connection);
-	if (ret < 0)
-		DRM_INFO("failed to create connection sysfs.\n");
+	subdrv = &ctx->subdrv;
+	subdrv->dev = &pdev->dev;
+	subdrv->probe = vidi_subdrv_probe;
 
-	exynos_drm_manager_register(&vidi_manager);
-	exynos_drm_display_register(&vidi_display);
+	ret = exynos_drm_subdrv_register(subdrv);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to register drm vidi device\n");
+		return ret;
+	}
+
+	ret = device_create_file(&pdev->dev, &dev_attr_connection);
+	if (ret < 0) {
+		exynos_drm_subdrv_unregister(subdrv);
+		DRM_INFO("failed to create connection sysfs.\n");
+	}
 
 	return 0;
 }
 
 static int vidi_remove(struct platform_device *pdev)
 {
-	struct vidi_context *ctx = platform_get_drvdata(pdev);
-
-	exynos_drm_display_unregister(&vidi_display);
-	exynos_drm_manager_unregister(&vidi_manager);
+	struct exynos_drm_manager *mgr = platform_get_drvdata(pdev);
+	struct vidi_context *ctx = mgr->ctx;
+	struct drm_encoder *encoder = ctx->encoder;
+	struct drm_crtc *crtc = mgr->crtc;
 
 	if (ctx->raw_edid != (struct edid *)fake_edid_info) {
 		kfree(ctx->raw_edid);
 		ctx->raw_edid = NULL;
+
+		return -EINVAL;
 	}
 
+	crtc->funcs->destroy(crtc);
+	encoder->funcs->destroy(encoder);
+	drm_connector_cleanup(&ctx->connector);
+
 	return 0;
 }
 
@@ -640,3 +679,31 @@ struct platform_driver vidi_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
+
+int exynos_drm_probe_vidi(void)
+{
+	struct platform_device *pdev;
+	int ret;
+
+	pdev = platform_device_register_simple("exynos-drm-vidi", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	ret = platform_driver_register(&vidi_driver);
+	if (ret) {
+		platform_device_unregister(pdev);
+		return ret;
+	}
+
+	return ret;
+}
+
+void exynos_drm_remove_vidi(void)
+{
+	struct vidi_context *ctx = vidi_manager.ctx;
+	struct exynos_drm_subdrv *subdrv = &ctx->subdrv;
+	struct platform_device *pdev = to_platform_device(subdrv->dev);
+
+	platform_driver_unregister(&vidi_driver);
+	platform_device_unregister(pdev);
+}
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 9a6d652..675996a 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -36,10 +36,12 @@
 #include <linux/i2c.h>
 #include <linux/of_gpio.h>
 #include <linux/hdmi.h>
+#include <linux/component.h>
 
 #include <drm/exynos_drm.h>
 
 #include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
 #include "exynos_mixer.h"
 
 #include <linux/gpio.h>
@@ -928,16 +930,6 @@ static int hdmi_create_connector(struct exynos_drm_display *display,
 	return 0;
 }
 
-static int hdmi_initialize(struct exynos_drm_display *display,
-			struct drm_device *drm_dev)
-{
-	struct hdmi_context *hdata = display->ctx;
-
-	hdata->drm_dev = drm_dev;
-
-	return 0;
-}
-
 static void hdmi_mode_fixup(struct exynos_drm_display *display,
 				struct drm_connector *connector,
 				const struct drm_display_mode *mode,
@@ -1913,7 +1905,6 @@ static void hdmi_dpms(struct exynos_drm_display *display, int mode)
 }
 
 static struct exynos_drm_display_ops hdmi_display_ops = {
-	.initialize	= hdmi_initialize,
 	.create_connector = hdmi_create_connector,
 	.mode_fixup	= hdmi_mode_fixup,
 	.mode_set	= hdmi_mode_set,
@@ -2047,18 +2038,44 @@ static struct of_device_id hdmi_match_types[] = {
 	}
 };
 
+static int hdmi_bind(struct device *dev, struct device *master, void *data)
+{
+	struct drm_device *drm_dev = data;
+	struct hdmi_context *hdata;
+
+	hdata = hdmi_display.ctx;
+	hdata->drm_dev = drm_dev;
+
+	return exynos_drm_create_enc_conn(drm_dev, &hdmi_display);
+}
+
+static void hdmi_unbind(struct device *dev, struct device *master, void *data)
+{
+	struct exynos_drm_display *display = get_hdmi_display(dev);
+	struct drm_encoder *encoder = display->encoder;
+	struct hdmi_context *hdata = display->ctx;
+
+	encoder->funcs->destroy(encoder);
+	drm_connector_cleanup(&hdata->connector);
+}
+
+static const struct component_ops hdmi_component_ops = {
+	.bind	= hdmi_bind,
+	.unbind = hdmi_unbind,
+};
+
 static int hdmi_probe(struct platform_device *pdev)
 {
+	struct device_node *ddc_node, *phy_node;
+	struct s5p_hdmi_platform_data *pdata;
+	struct hdmi_driver_data *drv_data;
+	const struct of_device_id *match;
 	struct device *dev = &pdev->dev;
 	struct hdmi_context *hdata;
-	struct s5p_hdmi_platform_data *pdata;
 	struct resource *res;
-	const struct of_device_id *match;
-	struct device_node *ddc_node, *phy_node;
-	struct hdmi_driver_data *drv_data;
 	int ret;
 
-	 if (!dev->of_node)
+	if (!dev->of_node)
 		return -ENODEV;
 
 	pdata = drm_hdmi_dt_parse_pdata(dev);
@@ -2149,11 +2166,9 @@ static int hdmi_probe(struct platform_device *pdev)
 	}
 
 	pm_runtime_enable(dev);
-
 	hdmi_display.ctx = hdata;
-	exynos_drm_display_register(&hdmi_display);
 
-	return 0;
+	return exynos_drm_component_add(&pdev->dev, &hdmi_component_ops);
 
 err_hdmiphy:
 	put_device(&hdata->hdmiphy_port->dev);
@@ -2164,14 +2179,14 @@ err_ddc:
 
 static int hdmi_remove(struct platform_device *pdev)
 {
-	struct device *dev = &pdev->dev;
-	struct exynos_drm_display *display = get_hdmi_display(dev);
-	struct hdmi_context *hdata = display->ctx;
+	struct hdmi_context *hdata = hdmi_display.ctx;
 
 	put_device(&hdata->hdmiphy_port->dev);
 	put_device(&hdata->ddc_adpt->dev);
+
 	pm_runtime_disable(&pdev->dev);
 
+	exynos_drm_component_del(&pdev->dev, &hdmi_component_ops);
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index ce28881..483d7c0 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -31,6 +31,7 @@
 #include <linux/clk.h>
 #include <linux/regulator/consumer.h>
 #include <linux/of.h>
+#include <linux/component.h>
 
 #include <drm/exynos_drm.h>
 
@@ -830,13 +831,15 @@ static int vp_resources_init(struct mixer_context *mixer_ctx)
 }
 
 static int mixer_initialize(struct exynos_drm_manager *mgr,
-			struct drm_device *drm_dev, int pipe)
+			struct drm_device *drm_dev)
 {
 	int ret;
 	struct mixer_context *mixer_ctx = mgr->ctx;
+	struct exynos_drm_private *priv;
+	priv = drm_dev->dev_private;
 
-	mixer_ctx->drm_dev = drm_dev;
-	mixer_ctx->pipe = pipe;
+	mgr->drm_dev = mixer_ctx->drm_dev = drm_dev;
+	mgr->pipe = mixer_ctx->pipe = priv->pipe++;
 
 	/* acquire resources: regs, irqs, clocks */
 	ret = mixer_resources_init(mixer_ctx);
@@ -1142,8 +1145,6 @@ int mixer_check_mode(struct drm_display_mode *mode)
 }
 
 static struct exynos_drm_manager_ops mixer_manager_ops = {
-	.initialize		= mixer_initialize,
-	.remove			= mixer_mgr_remove,
 	.dpms			= mixer_dpms,
 	.enable_vblank		= mixer_enable_vblank,
 	.disable_vblank		= mixer_disable_vblank,
@@ -1200,11 +1201,13 @@ static struct of_device_id mixer_match_types[] = {
 	}
 };
 
-static int mixer_probe(struct platform_device *pdev)
+static int mixer_bind(struct device *dev, struct device *manager, void *data)
 {
-	struct device *dev = &pdev->dev;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct drm_device *drm_dev = data;
 	struct mixer_context *ctx;
 	struct mixer_drv_data *drv;
+	int ret;
 
 	dev_info(dev, "probe start\n");
 
@@ -1233,20 +1236,49 @@ static int mixer_probe(struct platform_device *pdev)
 	atomic_set(&ctx->wait_vsync_event, 0);
 
 	mixer_manager.ctx = ctx;
+	ret = mixer_initialize(&mixer_manager, drm_dev);
+	if (ret)
+		return ret;
+
 	platform_set_drvdata(pdev, &mixer_manager);
-	exynos_drm_manager_register(&mixer_manager);
+	ret = exynos_drm_crtc_create(&mixer_manager);
+	if (ret) {
+		mixer_mgr_remove(&mixer_manager);
+		return ret;
+	}
 
 	pm_runtime_enable(dev);
 
 	return 0;
 }
 
-static int mixer_remove(struct platform_device *pdev)
+static void mixer_unbind(struct device *dev, struct device *master, void *data)
 {
-	dev_info(&pdev->dev, "remove successful\n");
+	struct exynos_drm_manager *mgr = dev_get_drvdata(dev);
+	struct drm_crtc *crtc = mgr->crtc;
+
+	dev_info(dev, "remove successful\n");
+
+	mixer_mgr_remove(mgr);
 
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_disable(dev);
 
+	crtc->funcs->destroy(crtc);
+}
+
+static const struct component_ops mixer_component_ops = {
+	.bind	= mixer_bind,
+	.unbind	= mixer_unbind,
+};
+
+static int mixer_probe(struct platform_device *pdev)
+{
+	return exynos_drm_component_add(&pdev->dev, &mixer_component_ops);
+}
+
+static int mixer_remove(struct platform_device *pdev)
+{
+	exynos_drm_component_del(&pdev->dev, &mixer_component_ops);
 	return 0;
 }