Merge branch 'drm/next/platform' of git://linuxtv.org/pinchartl/media into drm-misc-next

Merge Laurent's drm_platform removal code. Only conflict is with the
drm_pci.h extraction, which allows me to fix up the misplayed
drm_platform_init fumble that 0day and Stephen Rothwell reported.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

Documentation/gpu/drm-internals.rst

@@ -240,9 +240,6 @@ drivers.
 .. kernel-doc:: drivers/gpu/drm/drm_pci.c
    :export:
 
-.. kernel-doc:: drivers/gpu/drm/drm_platform.c
-   :export:
-
 Open/Close, File Operations and IOCTLs
 ======================================
 

drivers/gpu/drm/Makefile

@@ -7,7 +7,7 @@ drm-y       :=	drm_auth.o drm_bufs.o drm_cache.o \
 		drm_file.o drm_gem.o drm_ioctl.o drm_irq.o \
 		drm_lock.o drm_memory.o drm_drv.o \
 		drm_scatter.o drm_pci.o \
-		drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \
+		drm_sysfs.o drm_hashtab.o drm_mm.o \
 		drm_crtc.o drm_fourcc.o drm_modes.o drm_edid.o \
 		drm_info.o drm_encoder_slave.o \
 		drm_trace_points.o drm_global.o drm_prime.o \

drivers/gpu/drm/armada/armada_drv.c

@@ -137,10 +137,9 @@ static int armada_drm_bind(struct device *dev)
 		return ret;
 	}
 
-	priv->drm.platformdev = to_platform_device(dev);
 	priv->drm.dev_private = priv;
 
-	platform_set_drvdata(priv->drm.platformdev, &priv->drm);
+	dev_set_drvdata(dev, &priv->drm);
 
 	INIT_WORK(&priv->fb_unref_work, armada_drm_unref_work);
 	INIT_KFIFO(priv->fb_unref);

drivers/gpu/drm/drm_platform.c

-/*
- * Derived from drm_pci.c
- *
- * Copyright 2003 José Fonseca.
- * Copyright 2003 Leif Delgass.
- * Copyright (c) 2009, Code Aurora Forum.
- * All Rights Reserved.
- *
- * 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 THE
- * AUTHORS 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 <linux/export.h>
-#include <drm/drmP.h>
-
-/*
- * Register.
- *
- * \param platdev - Platform device struture
- * \return zero on success or a negative number on failure.
- *
- * Attempt to gets inter module "drm" information. If we are first
- * then register the character device and inter module information.
- * Try and register, if we fail to register, backout previous work.
- */
-
-static int drm_get_platform_dev(struct platform_device *platdev,
-				struct drm_driver *driver)
-{
-	struct drm_device *dev;
-	int ret;
-
-	DRM_DEBUG("\n");
-
-	dev = drm_dev_alloc(driver, &platdev->dev);
-	if (IS_ERR(dev))
-		return PTR_ERR(dev);
-
-	dev->platformdev = platdev;
-
-	ret = drm_dev_register(dev, 0);
-	if (ret)
-		goto err_free;
-
-	return 0;
-
-err_free:
-	drm_dev_unref(dev);
-	return ret;
-}
-
-/**
- * drm_platform_init - Register a platform device with the DRM subsystem
- * @driver: DRM device driver
- * @platform_device: platform device to register
- *
- * Registers the specified DRM device driver and platform device with the DRM
- * subsystem, initializing a drm_device structure and calling the driver's
- * .load() function.
- *
- * NOTE: This function is deprecated, please use drm_dev_alloc() and
- * drm_dev_register() instead and remove your &drm_driver.load callback.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device)
-{
-	DRM_DEBUG("\n");
-
-	return drm_get_platform_dev(platform_device, driver);
-}
-EXPORT_SYMBOL(drm_platform_init);

drivers/gpu/drm/exynos/exynos_dp.c

@@ -101,7 +101,6 @@ static int exynos_dp_bridge_attach(struct analogix_dp_plat_data *plat_data,
 	struct exynos_dp_device *dp = to_dp(plat_data);
 	int ret;
 
-	drm_connector_register(connector);
 	dp->connector = connector;
 
 	/* Pre-empt DP connector creation if there's a bridge */

drivers/gpu/drm/exynos/exynos_drm_dpi.c

@@ -114,7 +114,6 @@ static int exynos_dpi_create_connector(struct drm_encoder *encoder)
 	}
 
 	drm_connector_helper_add(connector, &exynos_dpi_connector_helper_funcs);
-	drm_connector_register(connector);
 	drm_mode_connector_attach_encoder(connector, encoder);
 
 	return 0;

drivers/gpu/drm/exynos/exynos_drm_drv.c

@@ -39,118 +39,6 @@
 
 static struct device *exynos_drm_get_dma_device(void);
 
-static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
-{
-	struct exynos_drm_private *private;
-	struct drm_encoder *encoder;
-	unsigned int clone_mask;
-	int cnt, ret;
-
-	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
-	if (!private)
-		return -ENOMEM;
-
-	init_waitqueue_head(&private->wait);
-	spin_lock_init(&private->lock);
-
-	dev_set_drvdata(dev->dev, dev);
-	dev->dev_private = (void *)private;
-
-	/* the first real CRTC device is used for all dma mapping operations */
-	private->dma_dev = exynos_drm_get_dma_device();
-	if (!private->dma_dev) {
-		DRM_ERROR("no device found for DMA mapping operations.\n");
-		ret = -ENODEV;
-		goto err_free_private;
-	}
-	DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n",
-		 dev_name(private->dma_dev));
-
-	/* create common IOMMU mapping for all devices attached to Exynos DRM */
-	ret = drm_create_iommu_mapping(dev);
-	if (ret < 0) {
-		DRM_ERROR("failed to create iommu mapping.\n");
-		goto err_free_private;
-	}
-
-	drm_mode_config_init(dev);
-
-	exynos_drm_mode_config_init(dev);
-
-	/* setup possible_clones. */
-	cnt = 0;
-	clone_mask = 0;
-	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
-		clone_mask |= (1 << (cnt++));
-
-	list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
-		encoder->possible_clones = clone_mask;
-
-	platform_set_drvdata(dev->platformdev, dev);
-
-	/* Try to bind all sub drivers. */
-	ret = component_bind_all(dev->dev, dev);
-	if (ret)
-		goto err_mode_config_cleanup;
-
-	ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
-	if (ret)
-		goto err_unbind_all;
-
-	/* Probe non kms sub drivers and virtual display driver. */
-	ret = exynos_drm_device_subdrv_probe(dev);
-	if (ret)
-		goto err_cleanup_vblank;
-
-	drm_mode_config_reset(dev);
-
-	/*
-	 * enable drm irq mode.
-	 * - with irq_enabled = true, we can use the vblank feature.
-	 *
-	 * P.S. note that we wouldn't use drm irq handler but
-	 *	just specific driver own one instead because
-	 *	drm framework supports only one irq handler.
-	 */
-	dev->irq_enabled = true;
-
-	/* init kms poll for handling hpd */
-	drm_kms_helper_poll_init(dev);
-
-	/* force connectors detection */
-	drm_helper_hpd_irq_event(dev);
-
-	return 0;
-
-err_cleanup_vblank:
-	drm_vblank_cleanup(dev);
-err_unbind_all:
-	component_unbind_all(dev->dev, dev);
-err_mode_config_cleanup:
-	drm_mode_config_cleanup(dev);
-	drm_release_iommu_mapping(dev);
-err_free_private:
-	kfree(private);
-
-	return ret;
-}
-
-static void exynos_drm_unload(struct drm_device *dev)
-{
-	exynos_drm_device_subdrv_remove(dev);
-
-	exynos_drm_fbdev_fini(dev);
-	drm_kms_helper_poll_fini(dev);
-
-	drm_vblank_cleanup(dev);
-	component_unbind_all(dev->dev, dev);
-	drm_mode_config_cleanup(dev);
-	drm_release_iommu_mapping(dev);
-
-	kfree(dev->dev_private);
-	dev->dev_private = NULL;
-}
-
 int exynos_atomic_check(struct drm_device *dev,
 			struct drm_atomic_state *state)
 {
@@ -256,8 +144,6 @@ static const struct file_operations exynos_drm_driver_fops = {
 static struct drm_driver exynos_drm_driver = {
 	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME
 				  | DRIVER_ATOMIC | DRIVER_RENDER,
-	.load			= exynos_drm_load,
-	.unload			= exynos_drm_unload,
 	.open			= exynos_drm_open,
 	.preclose		= exynos_drm_preclose,
 	.lastclose		= exynos_drm_lastclose,
@@ -432,12 +318,135 @@ static struct component_match *exynos_drm_match_add(struct device *dev)
 
 static int exynos_drm_bind(struct device *dev)
 {
-	return drm_platform_init(&exynos_drm_driver, to_platform_device(dev));
+	struct exynos_drm_private *private;
+	struct drm_encoder *encoder;
+	struct drm_device *drm;
+	unsigned int clone_mask;
+	int cnt, ret;
+
+	drm = drm_dev_alloc(&exynos_drm_driver, dev);
+	if (IS_ERR(drm))
+		return PTR_ERR(drm);
+
+	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
+	if (!private) {
+		ret = -ENOMEM;
+		goto err_free_drm;
+	}
+
+	init_waitqueue_head(&private->wait);
+	spin_lock_init(&private->lock);
+
+	dev_set_drvdata(dev, drm);
+	drm->dev_private = (void *)private;
+
+	/* the first real CRTC device is used for all dma mapping operations */
+	private->dma_dev = exynos_drm_get_dma_device();
+	if (!private->dma_dev) {
+		DRM_ERROR("no device found for DMA mapping operations.\n");
+		ret = -ENODEV;
+		goto err_free_private;
+	}
+	DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n",
+		 dev_name(private->dma_dev));
+
+	/* create common IOMMU mapping for all devices attached to Exynos DRM */
+	ret = drm_create_iommu_mapping(drm);
+	if (ret < 0) {
+		DRM_ERROR("failed to create iommu mapping.\n");
+		goto err_free_private;
+	}
+
+	drm_mode_config_init(drm);
+
+	exynos_drm_mode_config_init(drm);
+
+	/* setup possible_clones. */
+	cnt = 0;
+	clone_mask = 0;
+	list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
+		clone_mask |= (1 << (cnt++));
+
+	list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
+		encoder->possible_clones = clone_mask;
+
+	/* Try to bind all sub drivers. */
+	ret = component_bind_all(drm->dev, drm);
+	if (ret)
+		goto err_mode_config_cleanup;
+
+	ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
+	if (ret)
+		goto err_unbind_all;
+
+	/* Probe non kms sub drivers and virtual display driver. */
+	ret = exynos_drm_device_subdrv_probe(drm);
+	if (ret)
+		goto err_cleanup_vblank;
+
+	drm_mode_config_reset(drm);
+
+	/*
+	 * enable drm irq mode.
+	 * - with irq_enabled = true, we can use the vblank feature.
+	 *
+	 * P.S. note that we wouldn't use drm irq handler but
+	 *	just specific driver own one instead because
+	 *	drm framework supports only one irq handler.
+	 */
+	drm->irq_enabled = true;
+
+	/* init kms poll for handling hpd */
+	drm_kms_helper_poll_init(drm);
+
+	/* force connectors detection */
+	drm_helper_hpd_irq_event(drm);
+
+	/* register the DRM device */
+	ret = drm_dev_register(drm, 0);
+	if (ret < 0)
+		goto err_cleanup_fbdev;
+
+	return 0;
+
+err_cleanup_fbdev:
+	exynos_drm_fbdev_fini(drm);
+	drm_kms_helper_poll_fini(drm);
+	exynos_drm_device_subdrv_remove(drm);
+err_cleanup_vblank:
+	drm_vblank_cleanup(drm);
+err_unbind_all:
+	component_unbind_all(drm->dev, drm);
+err_mode_config_cleanup:
+	drm_mode_config_cleanup(drm);
+	drm_release_iommu_mapping(drm);
+err_free_private:
+	kfree(private);
+err_free_drm:
+	drm_dev_unref(drm);
+
+	return ret;
 }
 
 static void exynos_drm_unbind(struct device *dev)
 {
-	drm_put_dev(dev_get_drvdata(dev));
+	struct drm_device *drm = dev_get_drvdata(dev);
+
+	drm_dev_unregister(drm);
+
+	exynos_drm_device_subdrv_remove(drm);
+
+	exynos_drm_fbdev_fini(drm);
+	drm_kms_helper_poll_fini(drm);
+
+	component_unbind_all(drm->dev, drm);
+	drm_mode_config_cleanup(drm);
+	drm_release_iommu_mapping(drm);
+
+	kfree(drm->dev_private);
+	drm->dev_private = NULL;
+
+	drm_dev_unref(drm);
 }
 
 static const struct component_master_ops exynos_drm_ops = {

drivers/gpu/drm/exynos/exynos_drm_dsi.c

@@ -1587,7 +1587,6 @@ static int exynos_dsi_create_connector(struct drm_encoder *encoder)
 	}
 
 	drm_connector_helper_add(connector, &exynos_dsi_connector_helper_funcs);
-	drm_connector_register(connector);
 	drm_mode_connector_attach_encoder(connector, encoder);
 
 	return 0;

drivers/gpu/drm/exynos/exynos_drm_fbdev.c

@@ -119,7 +119,6 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
 	struct exynos_drm_gem *exynos_gem;
 	struct drm_device *dev = helper->dev;
 	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
-	struct platform_device *pdev = dev->platformdev;
 	unsigned long size;
 	int ret;
 
@@ -142,7 +141,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
 	 * memory area.
 	 */
 	if (IS_ERR(exynos_gem) && is_drm_iommu_supported(dev)) {
-		dev_warn(&pdev->dev, "contiguous FB allocation failed, falling back to non-contiguous\n");
+		dev_warn(dev->dev, "contiguous FB allocation failed, falling back to non-contiguous\n");
 		exynos_gem = exynos_drm_gem_create(dev, EXYNOS_BO_NONCONTIG,
 						   size);
 	}

drivers/gpu/drm/exynos/exynos_drm_vidi.c

@@ -359,7 +359,6 @@ static int vidi_create_connector(struct drm_encoder *encoder)
 	}
 
 	drm_connector_helper_add(connector, &vidi_connector_helper_funcs);
-	drm_connector_register(connector);
 	drm_mode_connector_attach_encoder(connector, encoder);
 
 	return 0;

drivers/gpu/drm/exynos/exynos_hdmi.c

@@ -920,7 +920,6 @@ static int hdmi_create_connector(struct drm_encoder *encoder)
 	}
 
 	drm_connector_helper_add(connector, &hdmi_connector_helper_funcs);
-	drm_connector_register(connector);
 	drm_mode_connector_attach_encoder(connector, encoder);
 
 	if (hdata->bridge) {

drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c

@@ -434,7 +434,7 @@ static int modeset_init(struct mdp4_kms *mdp4_kms)
 
 struct msm_kms *mdp4_kms_init(struct drm_device *dev)
 {
-	struct platform_device *pdev = dev->platformdev;
+	struct platform_device *pdev = to_platform_device(dev->dev);
 	struct mdp4_platform_config *config = mdp4_get_config(pdev);
 	struct mdp4_kms *mdp4_kms;
 	struct msm_kms *kms = NULL;

drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c

@@ -505,7 +505,7 @@ struct mdp5_cfg_handler *mdp5_cfg_init(struct mdp5_kms *mdp5_kms,
 		uint32_t major, uint32_t minor)
 {
 	struct drm_device *dev = mdp5_kms->dev;
-	struct platform_device *pdev = dev->platformdev;
+	struct platform_device *pdev = to_platform_device(dev->dev);
 	struct mdp5_cfg_handler *cfg_handler;
 	struct mdp5_cfg_platform *pconfig;
 	int i, ret = 0;

drivers/gpu/drm/msm/mdp/mdp5/mdp5_mdss.c

@@ -160,7 +160,7 @@ void msm_mdss_destroy(struct drm_device *dev)
 
 int msm_mdss_init(struct drm_device *dev)
 {
-	struct platform_device *pdev = dev->platformdev;
+	struct platform_device *pdev = to_platform_device(dev->dev);
 	struct msm_drm_private *priv = dev->dev_private;
 	struct msm_mdss *mdss;
 	int ret;

drivers/gpu/drm/msm/msm_drv.c

@@ -386,7 +386,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
 	}
 
 	platform_set_drvdata(pdev, ddev);
-	ddev->platformdev = pdev;
 
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv) {

drivers/gpu/drm/nouveau/nouveau_drm.c

@@ -108,7 +108,7 @@ nouveau_name(struct drm_device *dev)
 	if (dev->pdev)
 		return nouveau_pci_name(dev->pdev);
 	else
-		return nouveau_platform_name(dev->platformdev);
+		return nouveau_platform_name(to_platform_device(dev->dev));
 }
 
 static void
@@ -1095,7 +1095,6 @@ nouveau_platform_device_create(const struct nvkm_device_tegra_func *func,
 		goto err_free;
 	}
 
-	drm->platformdev = pdev;
 	platform_set_drvdata(pdev, drm);
 
 	return drm;

drivers/gpu/drm/shmobile/shmob_drm_crtc.c

@@ -711,13 +711,10 @@ int shmob_drm_connector_create(struct shmob_drm_device *sdev,
 		return ret;
 
 	drm_connector_helper_add(connector, &connector_helper_funcs);
-	ret = drm_connector_register(connector);
-	if (ret < 0)
-		goto err_cleanup;
 
 	ret = shmob_drm_backlight_init(&sdev->connector);
 	if (ret < 0)
-		goto err_sysfs;
+		goto err_cleanup;
 
 	ret = drm_mode_connector_attach_encoder(connector, encoder);
 	if (ret < 0)
@@ -731,8 +728,6 @@ int shmob_drm_connector_create(struct shmob_drm_device *sdev,
 
 err_backlight:
 	shmob_drm_backlight_exit(&sdev->connector);
-err_sysfs:
-	drm_connector_unregister(connector);
 err_cleanup:
 	drm_connector_cleanup(connector);
 	return ret;

drivers/gpu/drm/shmobile/shmob_drm_drv.c

@@ -103,100 +103,6 @@ static int shmob_drm_setup_clocks(struct shmob_drm_device *sdev,
  * DRM operations
  */
 
-static void shmob_drm_unload(struct drm_device *dev)
-{
-	drm_kms_helper_poll_fini(dev);
-	drm_mode_config_cleanup(dev);
-	drm_vblank_cleanup(dev);
-	drm_irq_uninstall(dev);
-
-	dev->dev_private = NULL;
-}
-
-static int shmob_drm_load(struct drm_device *dev, unsigned long flags)
-{
-	struct shmob_drm_platform_data *pdata = dev->dev->platform_data;
-	struct platform_device *pdev = dev->platformdev;
-	struct shmob_drm_device *sdev;
-	struct resource *res;
-	unsigned int i;
-	int ret;
-
-	if (pdata == NULL) {
-		dev_err(dev->dev, "no platform data\n");
-		return -EINVAL;
-	}
-
-	sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
-	if (sdev == NULL) {
-		dev_err(dev->dev, "failed to allocate private data\n");
-		return -ENOMEM;
-	}
-
-	sdev->dev = &pdev->dev;
-	sdev->pdata = pdata;
-	spin_lock_init(&sdev->irq_lock);
-
-	sdev->ddev = dev;
-	dev->dev_private = sdev;
-
-	/* I/O resources and clocks */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "failed to get memory resource\n");
-		return -EINVAL;
-	}
-
-	sdev->mmio = devm_ioremap_nocache(&pdev->dev, res->start,
-					  resource_size(res));
-	if (sdev->mmio == NULL) {
-		dev_err(&pdev->dev, "failed to remap memory resource\n");
-		return -ENOMEM;
-	}
-
-	ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
-	if (ret < 0)
-		return ret;
-
-	ret = shmob_drm_init_interface(sdev);
-	if (ret < 0)
-		return ret;
-
-	ret = shmob_drm_modeset_init(sdev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to initialize mode setting\n");
-		return ret;
-	}
-
-	for (i = 0; i < 4; ++i) {
-		ret = shmob_drm_plane_create(sdev, i);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "failed to create plane %u\n", i);
-			goto done;
-		}
-	}
-
-	ret = drm_vblank_init(dev, 1);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to initialize vblank\n");
-		goto done;
-	}
-
-	ret = drm_irq_install(dev, platform_get_irq(dev->platformdev, 0));
-	if (ret < 0) {
-		dev_err(&pdev->dev, "failed to install IRQ handler\n");
-		goto done;
-	}
-
-	platform_set_drvdata(pdev, sdev);
-
-done:
-	if (ret)
-		shmob_drm_unload(dev);
-
-	return ret;
-}
-
 static irqreturn_t shmob_drm_irq(int irq, void *arg)
 {
 	struct drm_device *dev = arg;
@@ -236,8 +142,6 @@ static const struct file_operations shmob_drm_fops = {
 static struct drm_driver shmob_drm_driver = {
 	.driver_features	= DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET
 				| DRIVER_PRIME,
-	.load			= shmob_drm_load,
-	.unload			= shmob_drm_unload,
 	.irq_handler		= shmob_drm_irq,
 	.gem_free_object_unlocked = drm_gem_cma_free_object,
 	.gem_vm_ops		= &drm_gem_cma_vm_ops,
@@ -297,18 +201,116 @@ static const struct dev_pm_ops shmob_drm_pm_ops = {
  * Platform driver
  */
 
-static int shmob_drm_probe(struct platform_device *pdev)
+static int shmob_drm_remove(struct platform_device *pdev)
 {
-	return drm_platform_init(&shmob_drm_driver, pdev);
+	struct shmob_drm_device *sdev = platform_get_drvdata(pdev);
+	struct drm_device *ddev = sdev->ddev;
+
+	drm_dev_unregister(ddev);
+	drm_kms_helper_poll_fini(ddev);
+	drm_mode_config_cleanup(ddev);
+	drm_irq_uninstall(ddev);
+	drm_dev_unref(ddev);
+
+	return 0;
 }
 
-static int shmob_drm_remove(struct platform_device *pdev)
+static int shmob_drm_probe(struct platform_device *pdev)
 {
-	struct shmob_drm_device *sdev = platform_get_drvdata(pdev);
+	struct shmob_drm_platform_data *pdata = pdev->dev.platform_data;
+	struct shmob_drm_device *sdev;
+	struct drm_device *ddev;
+	struct resource *res;
+	unsigned int i;
+	int ret;
+
+	if (pdata == NULL) {
+		dev_err(&pdev->dev, "no platform data\n");
+		return -EINVAL;
+	}
 
-	drm_put_dev(sdev->ddev);
+	/*
+	 * Allocate and initialize the driver private data, I/O resources and
+	 * clocks.
+	 */
+	sdev = devm_kzalloc(&pdev->dev, sizeof(*sdev), GFP_KERNEL);
+	if (sdev == NULL)
+		return -ENOMEM;
+
+	sdev->dev = &pdev->dev;
+	sdev->pdata = pdata;
+	spin_lock_init(&sdev->irq_lock);
+
+	platform_set_drvdata(pdev, sdev);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	sdev->mmio = devm_ioremap_resource(&pdev->dev, res);
+	if (sdev->mmio == NULL)
+		return -ENOMEM;
+
+	ret = shmob_drm_setup_clocks(sdev, pdata->clk_source);
+	if (ret < 0)
+		return ret;
+
+	ret = shmob_drm_init_interface(sdev);
+	if (ret < 0)
+		return ret;
+
+	/* Allocate and initialize the DRM device. */
+	ddev = drm_dev_alloc(&shmob_drm_driver, &pdev->dev);
+	if (IS_ERR(ddev))
+		return PTR_ERR(ddev);
+
+	sdev->ddev = ddev;
+	ddev->dev_private = sdev;
+
+	ret = shmob_drm_modeset_init(sdev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to initialize mode setting\n");
+		goto err_free_drm_dev;
+	}
+
+	for (i = 0; i < 4; ++i) {
+		ret = shmob_drm_plane_create(sdev, i);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "failed to create plane %u\n", i);
+			goto err_modeset_cleanup;
+		}
+	}
+
+	ret = drm_vblank_init(ddev, 1);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to initialize vblank\n");
+		goto err_modeset_cleanup;
+	}
+
+	ret = drm_irq_install(ddev, platform_get_irq(pdev, 0));
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to install IRQ handler\n");
+		goto err_vblank_cleanup;
+	}
+
+	/*
+	 * Register the DRM device with the core and the connectors with
+	 * sysfs.
+	 */
+	ret = drm_dev_register(ddev, 0);
+	if (ret < 0)
+		goto err_irq_uninstall;
 
 	return 0;
+
+err_irq_uninstall:
+	drm_irq_uninstall(ddev);
+err_vblank_cleanup:
+	drm_vblank_cleanup(ddev);
+err_modeset_cleanup:
+	drm_kms_helper_poll_fini(ddev);
+	drm_mode_config_cleanup(ddev);
+err_free_drm_dev:
+	drm_dev_unref(ddev);
+
+	return ret;
 }
 
 static struct platform_driver shmob_drm_platform_driver = {

drivers/gpu/drm/sti/sti_drv.c

@@ -263,8 +263,6 @@ static int sti_bind(struct device *dev)
 	if (IS_ERR(ddev))
 		return PTR_ERR(ddev);
 
-	ddev->platformdev = to_platform_device(dev);
-
 	ret = sti_init(ddev);
 	if (ret)
 		goto err_drm_dev_unref;

drivers/gpu/drm/tilcdc/tilcdc_drv.c

@@ -245,7 +245,6 @@ static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
 	if (IS_ERR(ddev))
 		return PTR_ERR(ddev);
 
-	ddev->platformdev = pdev;
 	ddev->dev_private = priv;
 	platform_set_drvdata(pdev, ddev);
 	drm_mode_config_init(ddev);

include/drm/drmP.h

@@ -501,7 +501,6 @@ struct drm_device {
 	struct pci_controller *hose;
 #endif
 
-	struct platform_device *platformdev; /**< Platform device struture */
 	struct virtio_device *virtdev;
 
 	struct drm_sg_mem *sg;	/**< Scatter gather memory */

include/drm/drm_pci.h

@@ -72,7 +72,4 @@ static inline int drm_pci_set_busid(struct drm_device *dev,
 extern int drm_pcie_get_speed_cap_mask(struct drm_device *dev, u32 *speed_mask);
 extern int drm_pcie_get_max_link_width(struct drm_device *dev, u32 *mlw);
 
-/* platform section */
-extern int drm_platform_init(struct drm_driver *driver, struct platform_device *platform_device);
-
 #endif /* _DRM_PCI_H_ */