Merge branch 'exynos-drm-fixes' of...

Merge branch 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

Inki writes:
  This pull request includes drm_send_vblank_event() helper
   relevant patch I missed and code cleanups. And also it fixes
   a pended page flip issue.

* 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: replace request_threaded_irq with devm function
  drm/exynos: remove unnecessary devm_kfree
  drm/exynos: fix build warnings from ipp fimc
  drm/exynos: cleanup device pointer usages
  drm/exynos: wait for the completion of pending page flip
  drm/exynos: use drm_send_vblank_event() helper
  drm/exynos: page flip fixes
  drm/exynos: exynos_hdmi: Pass correct pointer to free_irq()
  drm/exynos: exynos_drm_ipp: Fix incorrect usage of IS_ERR_OR_NULL
  drm/exynos: exynos_drm_fbdev: Fix incorrect usage of IS_ERR_OR_NULL

Conflicts:
	drivers/gpu/drm/exynos/exynos_hdmi.c

drivers/gpu/drm/exynos/exynos_drm_crtc.c

@@ -48,6 +48,8 @@ struct exynos_drm_crtc {
 	unsigned int			pipe;
 	unsigned int			dpms;
 	enum exynos_crtc_mode		mode;
+	wait_queue_head_t		pending_flip_queue;
+	atomic_t			pending_flip;
 };
 
 static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
@@ -61,6 +63,13 @@ static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
 		return;
 	}
 
+	if (mode > DRM_MODE_DPMS_ON) {
+		/* wait for the completion of page flip. */
+		wait_event(exynos_crtc->pending_flip_queue,
+				atomic_read(&exynos_crtc->pending_flip) == 0);
+		drm_vblank_off(crtc->dev, exynos_crtc->pipe);
+	}
+
 	exynos_drm_fn_encoder(crtc, &mode, exynos_drm_encoder_crtc_dpms);
 	exynos_crtc->dpms = mode;
 }
@@ -217,7 +226,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 		ret = drm_vblank_get(dev, exynos_crtc->pipe);
 		if (ret) {
 			DRM_DEBUG("failed to acquire vblank counter\n");
-			list_del(&event->base.link);
 
 			goto out;
 		}
@@ -225,6 +233,7 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 		spin_lock_irq(&dev->event_lock);
 		list_add_tail(&event->base.link,
 				&dev_priv->pageflip_event_list);
+		atomic_set(&exynos_crtc->pending_flip, 1);
 		spin_unlock_irq(&dev->event_lock);
 
 		crtc->fb = fb;
@@ -344,6 +353,8 @@ int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr)
 
 	exynos_crtc->pipe = nr;
 	exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
+	init_waitqueue_head(&exynos_crtc->pending_flip_queue);
+	atomic_set(&exynos_crtc->pending_flip, 0);
 	exynos_crtc->plane = exynos_plane_init(dev, 1 << nr, true);
 	if (!exynos_crtc->plane) {
 		kfree(exynos_crtc);
@@ -398,7 +409,8 @@ void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc)
 {
 	struct exynos_drm_private *dev_priv = dev->dev_private;
 	struct drm_pending_vblank_event *e, *t;
-	struct timeval now;
+	struct drm_crtc *drm_crtc = dev_priv->crtc[crtc];
+	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
 	unsigned long flags;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
@@ -411,14 +423,11 @@ void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc)
 		if (crtc != e->pipe)
 			continue;
 
-		do_gettimeofday(&now);
-		e->event.sequence = 0;
-		e->event.tv_sec = now.tv_sec;
-		e->event.tv_usec = now.tv_usec;
-
-		list_move_tail(&e->base.link, &e->base.file_priv->event_list);
-		wake_up_interruptible(&e->base.file_priv->event_wait);
+		list_del(&e->base.link);
+		drm_send_vblank_event(dev, -1, e);
 		drm_vblank_put(dev, crtc);
+		atomic_set(&exynos_crtc->pending_flip, 0);
+		wake_up(&exynos_crtc->pending_flip_queue);
 	}
 
 	spin_unlock_irqrestore(&dev->event_lock, flags);

drivers/gpu/drm/exynos/exynos_drm_fbdev.c

@@ -182,7 +182,7 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
 
 	helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd,
 			&exynos_gem_obj->base);
-	if (IS_ERR_OR_NULL(helper->fb)) {
+	if (IS_ERR(helper->fb)) {
 		DRM_ERROR("failed to create drm framebuffer.\n");
 		ret = PTR_ERR(helper->fb);
 		goto err_destroy_gem;

drivers/gpu/drm/exynos/exynos_drm_fimc.c

@@ -12,9 +12,9 @@
  *
  */
 #include <linux/kernel.h>
-#include <linux/mfd/syscon.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 #include <linux/clk.h>
 #include <linux/pm_runtime.h>
@@ -1845,7 +1845,7 @@ static int fimc_probe(struct platform_device *pdev)
 	}
 
 	ctx->irq = res->start;
-	ret = request_threaded_irq(ctx->irq, NULL, fimc_irq_handler,
+	ret = devm_request_threaded_irq(dev, ctx->irq, NULL, fimc_irq_handler,
 		IRQF_ONESHOT, "drm_fimc", ctx);
 	if (ret < 0) {
 		dev_err(dev, "failed to request irq.\n");
@@ -1854,7 +1854,7 @@ static int fimc_probe(struct platform_device *pdev)
 
 	ret = fimc_setup_clocks(ctx);
 	if (ret < 0)
-		goto err_free_irq;
+		return ret;
 
 	ippdrv = &ctx->ippdrv;
 	ippdrv->ops[EXYNOS_DRM_OPS_SRC] = &fimc_src_ops;
@@ -1884,7 +1884,7 @@ static int fimc_probe(struct platform_device *pdev)
 		goto err_pm_dis;
 	}
 
-	dev_info(&pdev->dev, "drm fimc registered successfully.\n");
+	dev_info(dev, "drm fimc registered successfully.\n");
 
 	return 0;
 
@@ -1892,8 +1892,6 @@ static int fimc_probe(struct platform_device *pdev)
 	pm_runtime_disable(dev);
 err_put_clk:
 	fimc_put_clocks(ctx);
-err_free_irq:
-	free_irq(ctx->irq, ctx);
 
 	return ret;
 }
@@ -1911,8 +1909,6 @@ static int fimc_remove(struct platform_device *pdev)
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
 
-	free_irq(ctx->irq, ctx);
-
 	return 0;
 }
 

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -885,7 +885,7 @@ static int fimd_probe(struct platform_device *pdev)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	if (pdev->dev.of_node) {
+	if (dev->of_node) {
 		pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
 		if (!pdata) {
 			DRM_ERROR("memory allocation for pdata failed\n");
@@ -899,7 +899,7 @@ static int fimd_probe(struct platform_device *pdev)
 			return ret;
 		}
 	} else {
-		pdata = pdev->dev.platform_data;
+		pdata = dev->platform_data;
 		if (!pdata) {
 			DRM_ERROR("no platform data specified\n");
 			return -EINVAL;
@@ -912,7 +912,7 @@ static int fimd_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
@@ -930,7 +930,7 @@ static int fimd_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	ctx->regs = devm_ioremap_resource(&pdev->dev, res);
+	ctx->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(ctx->regs))
 		return PTR_ERR(ctx->regs);
 
@@ -942,7 +942,7 @@ static int fimd_probe(struct platform_device *pdev)
 
 	ctx->irq = res->start;
 
-	ret = devm_request_irq(&pdev->dev, ctx->irq, fimd_irq_handler,
+	ret = devm_request_irq(dev, ctx->irq, fimd_irq_handler,
 							0, "drm_fimd", ctx);
 	if (ret) {
 		dev_err(dev, "irq request failed.\n");

drivers/gpu/drm/exynos/exynos_drm_g2d.c

@@ -1379,7 +1379,7 @@ static int g2d_probe(struct platform_device *pdev)
 	struct exynos_drm_subdrv *subdrv;
 	int ret;
 
-	g2d = devm_kzalloc(&pdev->dev, sizeof(*g2d), GFP_KERNEL);
+	g2d = devm_kzalloc(dev, sizeof(*g2d), GFP_KERNEL);
 	if (!g2d) {
 		dev_err(dev, "failed to allocate driver data\n");
 		return -ENOMEM;
@@ -1417,7 +1417,7 @@ static int g2d_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	g2d->regs = devm_ioremap_resource(&pdev->dev, res);
+	g2d->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(g2d->regs)) {
 		ret = PTR_ERR(g2d->regs);
 		goto err_put_clk;
@@ -1430,7 +1430,7 @@ static int g2d_probe(struct platform_device *pdev)
 		goto err_put_clk;
 	}
 
-	ret = devm_request_irq(&pdev->dev, g2d->irq, g2d_irq_handler, 0,
+	ret = devm_request_irq(dev, g2d->irq, g2d_irq_handler, 0,
 								"drm_g2d", g2d);
 	if (ret < 0) {
 		dev_err(dev, "irq request failed\n");

drivers/gpu/drm/exynos/exynos_drm_gsc.c

@@ -1704,7 +1704,7 @@ static int gsc_probe(struct platform_device *pdev)
 	}
 
 	ctx->irq = res->start;
-	ret = request_threaded_irq(ctx->irq, NULL, gsc_irq_handler,
+	ret = devm_request_threaded_irq(dev, ctx->irq, NULL, gsc_irq_handler,
 		IRQF_ONESHOT, "drm_gsc", ctx);
 	if (ret < 0) {
 		dev_err(dev, "failed to request irq.\n");
@@ -1725,7 +1725,7 @@ static int gsc_probe(struct platform_device *pdev)
 	ret = gsc_init_prop_list(ippdrv);
 	if (ret < 0) {
 		dev_err(dev, "failed to init property list.\n");
-		goto err_get_irq;
+		return ret;
 	}
 
 	DRM_DEBUG_KMS("%s:id[%d]ippdrv[0x%x]\n", __func__, ctx->id,
@@ -1743,15 +1743,12 @@ static int gsc_probe(struct platform_device *pdev)
 		goto err_ippdrv_register;
 	}
 
-	dev_info(&pdev->dev, "drm gsc registered successfully.\n");
+	dev_info(dev, "drm gsc registered successfully.\n");
 
 	return 0;
 
 err_ippdrv_register:
-	devm_kfree(dev, ippdrv->prop_list);
 	pm_runtime_disable(dev);
-err_get_irq:
-	free_irq(ctx->irq, ctx);
 	return ret;
 }
 
@@ -1761,15 +1758,12 @@ static int gsc_remove(struct platform_device *pdev)
 	struct gsc_context *ctx = get_gsc_context(dev);
 	struct exynos_drm_ippdrv *ippdrv = &ctx->ippdrv;
 
-	devm_kfree(dev, ippdrv->prop_list);
 	exynos_drm_ippdrv_unregister(ippdrv);
 	mutex_destroy(&ctx->lock);
 
 	pm_runtime_set_suspended(dev);
 	pm_runtime_disable(dev);
 
-	free_irq(ctx->irq, ctx);
-
 	return 0;
 }
 

drivers/gpu/drm/exynos/exynos_drm_hdmi.c

@@ -442,7 +442,7 @@ static int exynos_drm_hdmi_probe(struct platform_device *pdev)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx) {
 		DRM_LOG_KMS("failed to alloc common hdmi context.\n");
 		return -ENOMEM;

drivers/gpu/drm/exynos/exynos_drm_ipp.c

@@ -222,7 +222,7 @@ static struct exynos_drm_ippdrv *ipp_find_driver(struct ipp_context *ctx,
 		/* find ipp driver using idr */
 		ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock,
 			ipp_id);
-		if (IS_ERR_OR_NULL(ippdrv)) {
+		if (IS_ERR(ippdrv)) {
 			DRM_ERROR("not found ipp%d driver.\n", ipp_id);
 			return ippdrv;
 		}
@@ -388,7 +388,7 @@ static int ipp_find_and_set_property(struct drm_exynos_ipp_property *property)
 	DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, prop_id);
 
 	ippdrv = ipp_find_drv_by_handle(prop_id);
-	if (IS_ERR_OR_NULL(ippdrv)) {
+	if (IS_ERR(ippdrv)) {
 		DRM_ERROR("failed to get ipp driver.\n");
 		return -EINVAL;
 	}
@@ -492,7 +492,7 @@ int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data,
 
 	/* find ipp driver using ipp id */
 	ippdrv = ipp_find_driver(ctx, property);
-	if (IS_ERR_OR_NULL(ippdrv)) {
+	if (IS_ERR(ippdrv)) {
 		DRM_ERROR("failed to get ipp driver.\n");
 		return -EINVAL;
 	}
@@ -521,19 +521,19 @@ int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data,
 	c_node->state = IPP_STATE_IDLE;
 
 	c_node->start_work = ipp_create_cmd_work();
-	if (IS_ERR_OR_NULL(c_node->start_work)) {
+	if (IS_ERR(c_node->start_work)) {
 		DRM_ERROR("failed to create start work.\n");
 		goto err_clear;
 	}
 
 	c_node->stop_work = ipp_create_cmd_work();
-	if (IS_ERR_OR_NULL(c_node->stop_work)) {
+	if (IS_ERR(c_node->stop_work)) {
 		DRM_ERROR("failed to create stop work.\n");
 		goto err_free_start;
 	}
 
 	c_node->event_work = ipp_create_event_work();
-	if (IS_ERR_OR_NULL(c_node->event_work)) {
+	if (IS_ERR(c_node->event_work)) {
 		DRM_ERROR("failed to create event work.\n");
 		goto err_free_stop;
 	}
@@ -915,7 +915,7 @@ static int ipp_queue_buf_with_run(struct device *dev,
 	DRM_DEBUG_KMS("%s\n", __func__);
 
 	ippdrv = ipp_find_drv_by_handle(qbuf->prop_id);
-	if (IS_ERR_OR_NULL(ippdrv)) {
+	if (IS_ERR(ippdrv)) {
 		DRM_ERROR("failed to get ipp driver.\n");
 		return -EFAULT;
 	}
@@ -1909,7 +1909,7 @@ static int ipp_probe(struct platform_device *pdev)
 	struct exynos_drm_subdrv *subdrv;
 	int ret;
 
-	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
@@ -1963,7 +1963,7 @@ static int ipp_probe(struct platform_device *pdev)
 		goto err_cmd_workq;
 	}
 
-	dev_info(&pdev->dev, "drm ipp registered successfully.\n");
+	dev_info(dev, "drm ipp registered successfully.\n");
 
 	return 0;
 

drivers/gpu/drm/exynos/exynos_drm_rotator.c

@@ -666,8 +666,8 @@ static int rotator_probe(struct platform_device *pdev)
 		return rot->irq;
 	}
 
-	ret = request_threaded_irq(rot->irq, NULL, rotator_irq_handler,
-			IRQF_ONESHOT, "drm_rotator", rot);
+	ret = devm_request_threaded_irq(dev, rot->irq, NULL,
+			rotator_irq_handler, IRQF_ONESHOT, "drm_rotator", rot);
 	if (ret < 0) {
 		dev_err(dev, "failed to request irq\n");
 		return ret;
@@ -676,8 +676,7 @@ static int rotator_probe(struct platform_device *pdev)
 	rot->clock = devm_clk_get(dev, "rotator");
 	if (IS_ERR(rot->clock)) {
 		dev_err(dev, "failed to get clock\n");
-		ret = PTR_ERR(rot->clock);
-		goto err_clk_get;
+		return PTR_ERR(rot->clock);
 	}
 
 	pm_runtime_enable(dev);
@@ -709,10 +708,7 @@ static int rotator_probe(struct platform_device *pdev)
 	return 0;
 
 err_ippdrv_register:
-	devm_kfree(dev, ippdrv->prop_list);
 	pm_runtime_disable(dev);
-err_clk_get:
-	free_irq(rot->irq, rot);
 	return ret;
 }
 
@@ -722,13 +718,10 @@ static int rotator_remove(struct platform_device *pdev)
 	struct rot_context *rot = dev_get_drvdata(dev);
 	struct exynos_drm_ippdrv *ippdrv = &rot->ippdrv;
 
-	devm_kfree(dev, ippdrv->prop_list);
 	exynos_drm_ippdrv_unregister(ippdrv);
 
 	pm_runtime_disable(dev);
 
-	free_irq(rot->irq, rot);
-
 	return 0;
 }
 

drivers/gpu/drm/exynos/exynos_drm_vidi.c

@@ -594,7 +594,7 @@ static int vidi_probe(struct platform_device *pdev)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx)
 		return -ENOMEM;
 
@@ -612,7 +612,7 @@ static int vidi_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, ctx);
 
-	ret = device_create_file(&pdev->dev, &dev_attr_connection);
+	ret = device_create_file(dev, &dev_attr_connection);
 	if (ret < 0)
 		DRM_INFO("failed to create connection sysfs.\n");
 

drivers/gpu/drm/exynos/exynos_hdmi.c

@@ -1946,14 +1946,14 @@ static int hdmi_probe(struct platform_device *pdev)
 
 	DRM_DEBUG_KMS("[%d]\n", __LINE__);
 
-	if (pdev->dev.of_node) {
+	if (dev->of_node) {
 		pdata = drm_hdmi_dt_parse_pdata(dev);
 		if (IS_ERR(pdata)) {
 			DRM_ERROR("failed to parse dt\n");
 			return PTR_ERR(pdata);
 		}
 	} else {
-		pdata = pdev->dev.platform_data;
+		pdata = dev->platform_data;
 	}
 
 	if (!pdata) {
@@ -1961,14 +1961,14 @@ static int hdmi_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	drm_hdmi_ctx = devm_kzalloc(&pdev->dev, sizeof(*drm_hdmi_ctx),
+	drm_hdmi_ctx = devm_kzalloc(dev, sizeof(*drm_hdmi_ctx),
 								GFP_KERNEL);
 	if (!drm_hdmi_ctx) {
 		DRM_ERROR("failed to allocate common hdmi context.\n");
 		return -ENOMEM;
 	}
 
-	hdata = devm_kzalloc(&pdev->dev, sizeof(struct hdmi_context),
+	hdata = devm_kzalloc(dev, sizeof(struct hdmi_context),
 								GFP_KERNEL);
 	if (!hdata) {
 		DRM_ERROR("out of memory\n");
@@ -1985,7 +1985,7 @@ static int hdmi_probe(struct platform_device *pdev)
 	if (dev->of_node) {
 		const struct of_device_id *match;
 		match = of_match_node(of_match_ptr(hdmi_match_types),
-					pdev->dev.of_node);
+					dev->of_node);
 		if (match == NULL)
 			return -ENODEV;
 		hdata->type = (enum hdmi_type)match->data;
@@ -2005,11 +2005,11 @@ static int hdmi_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hdata->regs = devm_ioremap_resource(&pdev->dev, res);
+	hdata->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(hdata->regs))
 		return PTR_ERR(hdata->regs);
 
-	ret = devm_gpio_request(&pdev->dev, hdata->hpd_gpio, "HPD");
+	ret = devm_gpio_request(dev, hdata->hpd_gpio, "HPD");
 	if (ret) {
 		DRM_ERROR("failed to request HPD gpio\n");
 		return ret;
@@ -2041,7 +2041,7 @@ static int hdmi_probe(struct platform_device *pdev)
 
 	hdata->hpd = gpio_get_value(hdata->hpd_gpio);
 
-	ret = request_threaded_irq(hdata->irq, NULL,
+	ret = devm_request_threaded_irq(dev, hdata->irq, NULL,
 			hdmi_irq_thread, IRQF_TRIGGER_RISING |
 			IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
 			"hdmi", drm_hdmi_ctx);
@@ -2070,16 +2070,11 @@ static int hdmi_probe(struct platform_device *pdev)
 static int 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__);
 
 	pm_runtime_disable(dev);
 
-	free_irq(hdata->irq, hdata);
-
-
 	/* hdmiphy i2c driver */
 	i2c_del_driver(&hdmiphy_driver);
 	/* DDC i2c driver */

drivers/gpu/drm/exynos/exynos_mixer.c

@@ -1061,7 +1061,7 @@ static int mixer_resources_init(struct exynos_drm_hdmi_context *ctx,
 		return -ENXIO;
 	}
 
-	mixer_res->mixer_regs = devm_ioremap(&pdev->dev, res->start,
+	mixer_res->mixer_regs = devm_ioremap(dev, res->start,
 							resource_size(res));
 	if (mixer_res->mixer_regs == NULL) {
 		dev_err(dev, "register mapping failed.\n");
@@ -1074,7 +1074,7 @@ static int mixer_resources_init(struct exynos_drm_hdmi_context *ctx,
 		return -ENXIO;
 	}
 
-	ret = devm_request_irq(&pdev->dev, res->start, mixer_irq_handler,
+	ret = devm_request_irq(dev, res->start, mixer_irq_handler,
 							0, "drm_mixer", ctx);
 	if (ret) {
 		dev_err(dev, "request interrupt failed.\n");
@@ -1118,7 +1118,7 @@ static int vp_resources_init(struct exynos_drm_hdmi_context *ctx,
 		return -ENXIO;
 	}
 
-	mixer_res->vp_regs = devm_ioremap(&pdev->dev, res->start,
+	mixer_res->vp_regs = devm_ioremap(dev, res->start,
 							resource_size(res));
 	if (mixer_res->vp_regs == NULL) {
 		dev_err(dev, "register mapping failed.\n");
@@ -1169,14 +1169,14 @@ static int mixer_probe(struct platform_device *pdev)
 
 	dev_info(dev, "probe start\n");
 
-	drm_hdmi_ctx = devm_kzalloc(&pdev->dev, sizeof(*drm_hdmi_ctx),
+	drm_hdmi_ctx = devm_kzalloc(dev, sizeof(*drm_hdmi_ctx),
 								GFP_KERNEL);
 	if (!drm_hdmi_ctx) {
 		DRM_ERROR("failed to allocate common hdmi context.\n");
 		return -ENOMEM;
 	}
 
-	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
 	if (!ctx) {
 		DRM_ERROR("failed to alloc mixer context.\n");
 		return -ENOMEM;
@@ -1187,14 +1187,14 @@ static int mixer_probe(struct platform_device *pdev)
 	if (dev->of_node) {
 		const struct of_device_id *match;
 		match = of_match_node(of_match_ptr(mixer_match_types),
-							  pdev->dev.of_node);
+							  dev->of_node);
 		drv = (struct mixer_drv_data *)match->data;
 	} else {
 		drv = (struct mixer_drv_data *)
 			platform_get_device_id(pdev)->driver_data;
 	}
 
-	ctx->dev = &pdev->dev;
+	ctx->dev = dev;
 	ctx->parent_ctx = (void *)drm_hdmi_ctx;
 	drm_hdmi_ctx->ctx = (void *)ctx;
 	ctx->vp_enabled = drv->is_vp_enabled;