Merge tag 'imx-drm-fixes-2015-12-01' of git://git.pengutronix.de/git/pza/linux into drm-fixes

imx-drm crtc, plane, parallel panel, and TV encoder fixes

- Use drm_crtc_send_vblank_event to fix per crtc vblank handling
- Move the crtc device of_node assignment out of the ipuv3-crtc driver into
  ipu-common code, where the devices are created.
- Fix parallel display support with simple-panels
- Remove some unused fields and superfluous checks
- Switch to universal planes and add error handling for primary plane creation
- Fix module autoload for TV encoder driver

* tag 'imx-drm-fixes-2015-12-01' of git://git.pengutronix.de/git/pza/linux:
  drm: imx: imx-tve: Fix module autoload for OF platform driver
  drm: imx: convert to drm_crtc_send_vblank_event()
  GPU-DRM-IMX: Delete an unnecessary check before drm_fbdev_cma_restore_mode()
  drm/imx: Remove of_node assignment from ipuv3-crtc driver probe
  gpu: ipu-v3: Assign of_node of child platform devices to corresponding ports
  gpu: ipu-v3: Remove reg_offset field
  gpu: ipu-v3: drop unused dmfc field from client platform data
  drm/imx: parallel-display: allow to determine bus format from the connected panel
  drm/imx: ipuv3-crtc: Return error if ipu_plane_init() fails for primary plane
  drm/imx: switch to universal planes

Author: airlied

drivers/gpu/drm/imx/imx-drm-core.c

@@ -63,8 +63,7 @@ static void imx_drm_driver_lastclose(struct drm_device *drm)
 #if IS_ENABLED(CONFIG_DRM_IMX_FB_HELPER)
 	struct imx_drm_device *imxdrm = drm->dev_private;
 
-	if (imxdrm->fbhelper)
-		drm_fbdev_cma_restore_mode(imxdrm->fbhelper);
+	drm_fbdev_cma_restore_mode(imxdrm->fbhelper);
 #endif
 }
 
@@ -340,7 +339,7 @@ static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags)
  * imx_drm_add_crtc - add a new crtc
  */
 int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
-		struct imx_drm_crtc **new_crtc,
+		struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane,
 		const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs,
 		struct device_node *port)
 {
@@ -379,7 +378,7 @@ int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
 	drm_crtc_helper_add(crtc,
 			imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs);
 
-	drm_crtc_init(drm, crtc,
+	drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL,
 			imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs);
 
 	return 0;

drivers/gpu/drm/imx/imx-drm.h

@@ -9,6 +9,7 @@ struct drm_display_mode;
 struct drm_encoder;
 struct drm_fbdev_cma;
 struct drm_framebuffer;
+struct drm_plane;
 struct imx_drm_crtc;
 struct platform_device;
 
@@ -24,7 +25,7 @@ struct imx_drm_crtc_helper_funcs {
 };
 
 int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc,
-		struct imx_drm_crtc **new_crtc,
+		struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane,
 		const struct imx_drm_crtc_helper_funcs *imx_helper_funcs,
 		struct device_node *port);
 int imx_drm_remove_crtc(struct imx_drm_crtc *);

drivers/gpu/drm/imx/imx-tve.c

@@ -721,6 +721,7 @@ static const struct of_device_id imx_tve_dt_ids[] = {
 	{ .compatible = "fsl,imx53-tve", },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, imx_tve_dt_ids);
 
 static struct platform_driver imx_tve_driver = {
 	.probe		= imx_tve_probe,

drivers/gpu/drm/imx/ipuv3-crtc.c

@@ -212,7 +212,8 @@ static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)
 
 	spin_lock_irqsave(&drm->event_lock, flags);
 	if (ipu_crtc->page_flip_event)
-		drm_send_vblank_event(drm, -1, ipu_crtc->page_flip_event);
+		drm_crtc_send_vblank_event(&ipu_crtc->base,
+					   ipu_crtc->page_flip_event);
 	ipu_crtc->page_flip_event = NULL;
 	imx_drm_crtc_vblank_put(ipu_crtc->imx_crtc);
 	spin_unlock_irqrestore(&drm->event_lock, flags);
@@ -349,7 +350,6 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 	struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
 	int dp = -EINVAL;
 	int ret;
-	int id;
 
 	ret = ipu_get_resources(ipu_crtc, pdata);
 	if (ret) {
@@ -358,18 +358,23 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 		return ret;
 	}
 
+	if (pdata->dp >= 0)
+		dp = IPU_DP_FLOW_SYNC_BG;
+	ipu_crtc->plane[0] = ipu_plane_init(drm, ipu, pdata->dma[0], dp, 0,
+					    DRM_PLANE_TYPE_PRIMARY);
+	if (IS_ERR(ipu_crtc->plane[0])) {
+		ret = PTR_ERR(ipu_crtc->plane[0]);
+		goto err_put_resources;
+	}
+
 	ret = imx_drm_add_crtc(drm, &ipu_crtc->base, &ipu_crtc->imx_crtc,
-			&ipu_crtc_helper_funcs, ipu_crtc->dev->of_node);
+			&ipu_crtc->plane[0]->base, &ipu_crtc_helper_funcs,
+			ipu_crtc->dev->of_node);
 	if (ret) {
 		dev_err(ipu_crtc->dev, "adding crtc failed with %d.\n", ret);
 		goto err_put_resources;
 	}
 
-	if (pdata->dp >= 0)
-		dp = IPU_DP_FLOW_SYNC_BG;
-	id = imx_drm_crtc_id(ipu_crtc->imx_crtc);
-	ipu_crtc->plane[0] = ipu_plane_init(ipu_crtc->base.dev, ipu,
-					    pdata->dma[0], dp, BIT(id), true);
 	ret = ipu_plane_get_resources(ipu_crtc->plane[0]);
 	if (ret) {
 		dev_err(ipu_crtc->dev, "getting plane 0 resources failed with %d.\n",
@@ -379,10 +384,10 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 
 	/* If this crtc is using the DP, add an overlay plane */
 	if (pdata->dp >= 0 && pdata->dma[1] > 0) {
-		ipu_crtc->plane[1] = ipu_plane_init(ipu_crtc->base.dev, ipu,
-						    pdata->dma[1],
-						    IPU_DP_FLOW_SYNC_FG,
-						    BIT(id), false);
+		ipu_crtc->plane[1] = ipu_plane_init(drm, ipu, pdata->dma[1],
+						IPU_DP_FLOW_SYNC_FG,
+						drm_crtc_mask(&ipu_crtc->base),
+						DRM_PLANE_TYPE_OVERLAY);
 		if (IS_ERR(ipu_crtc->plane[1]))
 			ipu_crtc->plane[1] = NULL;
 	}
@@ -407,28 +412,6 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 	return ret;
 }
 
-static struct device_node *ipu_drm_get_port_by_id(struct device_node *parent,
-						  int port_id)
-{
-	struct device_node *port;
-	int id, ret;
-
-	port = of_get_child_by_name(parent, "port");
-	while (port) {
-		ret = of_property_read_u32(port, "reg", &id);
-		if (!ret && id == port_id)
-			return port;
-
-		do {
-			port = of_get_next_child(parent, port);
-			if (!port)
-				return NULL;
-		} while (of_node_cmp(port->name, "port"));
-	}
-
-	return NULL;
-}
-
 static int ipu_drm_bind(struct device *dev, struct device *master, void *data)
 {
 	struct ipu_client_platformdata *pdata = dev->platform_data;
@@ -470,23 +453,11 @@ static const struct component_ops ipu_crtc_ops = {
 static int ipu_drm_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct ipu_client_platformdata *pdata = dev->platform_data;
 	int ret;
 
 	if (!dev->platform_data)
 		return -EINVAL;
 
-	if (!dev->of_node) {
-		/* Associate crtc device with the corresponding DI port node */
-		dev->of_node = ipu_drm_get_port_by_id(dev->parent->of_node,
-						      pdata->di + 2);
-		if (!dev->of_node) {
-			dev_err(dev, "missing port@%d node in %s\n",
-				pdata->di + 2, dev->parent->of_node->full_name);
-			return -ENODEV;
-		}
-	}
-
 	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;

drivers/gpu/drm/imx/ipuv3-plane.c

@@ -381,7 +381,7 @@ static struct drm_plane_funcs ipu_plane_funcs = {
 
 struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
 				 int dma, int dp, unsigned int possible_crtcs,
-				 bool priv)
+				 enum drm_plane_type type)
 {
 	struct ipu_plane *ipu_plane;
 	int ret;
@@ -399,10 +399,9 @@ struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
 	ipu_plane->dma = dma;
 	ipu_plane->dp_flow = dp;
 
-	ret = drm_plane_init(dev, &ipu_plane->base, possible_crtcs,
-			     &ipu_plane_funcs, ipu_plane_formats,
-			     ARRAY_SIZE(ipu_plane_formats),
-			     priv);
+	ret = drm_universal_plane_init(dev, &ipu_plane->base, possible_crtcs,
+				       &ipu_plane_funcs, ipu_plane_formats,
+				       ARRAY_SIZE(ipu_plane_formats), type);
 	if (ret) {
 		DRM_ERROR("failed to initialize plane\n");
 		kfree(ipu_plane);

drivers/gpu/drm/imx/ipuv3-plane.h

@@ -34,7 +34,7 @@ struct ipu_plane {
 
 struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
 				 int dma, int dp, unsigned int possible_crtcs,
-				 bool priv);
+				 enum drm_plane_type type);
 
 /* Init IDMAC, DMFC, DP */
 int ipu_plane_mode_set(struct ipu_plane *plane, struct drm_crtc *crtc,

drivers/gpu/drm/imx/parallel-display.c

@@ -54,7 +54,11 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
 
 	if (imxpd->panel && imxpd->panel->funcs &&
 	    imxpd->panel->funcs->get_modes) {
+		struct drm_display_info *di = &connector->display_info;
+
 		num_modes = imxpd->panel->funcs->get_modes(imxpd->panel);
+		if (!imxpd->bus_format && di->num_bus_formats)
+			imxpd->bus_format = di->bus_formats[0];
 		if (num_modes > 0)
 			return num_modes;
 	}

drivers/gpu/ipu-v3/ipu-common.c

@@ -28,6 +28,7 @@
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
 #include <linux/of_device.h>
+#include <linux/of_graph.h>
 
 #include <drm/drm_fourcc.h>
 
@@ -993,11 +994,25 @@ static void platform_device_unregister_children(struct platform_device *pdev)
 struct ipu_platform_reg {
 	struct ipu_client_platformdata pdata;
 	const char *name;
-	int reg_offset;
 };
 
+/* These must be in the order of the corresponding device tree port nodes */
 static const struct ipu_platform_reg client_reg[] = {
 	{
+		.pdata = {
+			.csi = 0,
+			.dma[0] = IPUV3_CHANNEL_CSI0,
+			.dma[1] = -EINVAL,
+		},
+		.name = "imx-ipuv3-camera",
+	}, {
+		.pdata = {
+			.csi = 1,
+			.dma[0] = IPUV3_CHANNEL_CSI1,
+			.dma[1] = -EINVAL,
+		},
+		.name = "imx-ipuv3-camera",
+	}, {
 		.pdata = {
 			.di = 0,
 			.dc = 5,
@@ -1015,22 +1030,6 @@ static const struct ipu_platform_reg client_reg[] = {
 			.dma[1] = -EINVAL,
 		},
 		.name = "imx-ipuv3-crtc",
-	}, {
-		.pdata = {
-			.csi = 0,
-			.dma[0] = IPUV3_CHANNEL_CSI0,
-			.dma[1] = -EINVAL,
-		},
-		.reg_offset = IPU_CM_CSI0_REG_OFS,
-		.name = "imx-ipuv3-camera",
-	}, {
-		.pdata = {
-			.csi = 1,
-			.dma[0] = IPUV3_CHANNEL_CSI1,
-			.dma[1] = -EINVAL,
-		},
-		.reg_offset = IPU_CM_CSI1_REG_OFS,
-		.name = "imx-ipuv3-camera",
 	},
 };
 
@@ -1051,22 +1050,30 @@ static int ipu_add_client_devices(struct ipu_soc *ipu, unsigned long ipu_base)
 	for (i = 0; i < ARRAY_SIZE(client_reg); i++) {
 		const struct ipu_platform_reg *reg = &client_reg[i];
 		struct platform_device *pdev;
-		struct resource res;
-
-		if (reg->reg_offset) {
-			memset(&res, 0, sizeof(res));
-			res.flags = IORESOURCE_MEM;
-			res.start = ipu_base + ipu->devtype->cm_ofs + reg->reg_offset;
-			res.end = res.start + PAGE_SIZE - 1;
-			pdev = platform_device_register_resndata(dev, reg->name,
-				id++, &res, 1, &reg->pdata, sizeof(reg->pdata));
-		} else {
-			pdev = platform_device_register_data(dev, reg->name,
-				id++, &reg->pdata, sizeof(reg->pdata));
+
+		pdev = platform_device_alloc(reg->name, id++);
+		if (!pdev) {
+			ret = -ENOMEM;
+			goto err_register;
+		}
+
+		pdev->dev.parent = dev;
+
+		/* Associate subdevice with the corresponding port node */
+		pdev->dev.of_node = of_graph_get_port_by_id(dev->of_node, i);
+		if (!pdev->dev.of_node) {
+			dev_err(dev, "missing port@%d node in %s\n", i,
+				dev->of_node->full_name);
+			ret = -ENODEV;
+			goto err_register;
 		}
 
-		if (IS_ERR(pdev)) {
-			ret = PTR_ERR(pdev);
+		ret = platform_device_add_data(pdev, &reg->pdata,
+					       sizeof(reg->pdata));
+		if (!ret)
+			ret = platform_device_add(pdev);
+		if (ret) {
+			platform_device_put(pdev);
 			goto err_register;
 		}
 	}

include/video/imx-ipu-v3.h

@@ -343,7 +343,6 @@ struct ipu_client_platformdata {
 	int di;
 	int dc;
 	int dp;
-	int dmfc;
 	int dma[2];
 };