Merge tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux

Pull drm updates from Dave Airlie:
 "Cannonlake and Vega12 support are probably the two major things. This
  pull lacks nouveau, Ben had some unforseen leave and a few other
  blockers so we'll see how things look or maybe leave it for this merge
  window.

  core:
   - Device links to handle sound/gpu pm dependency
   - Color encoding/range properties
   - Plane clipping into plane check helper
   - Backlight helpers
   - DP TP4 + HBR3 helper support

  amdgpu:
   - Vega12 support
   - Enable DC by default on all supported GPUs
   - Powerplay restructuring and cleanup
   - DC bandwidth calc updates
   - DC backlight on pre-DCE11
   - TTM backing store dropping support
   - SR-IOV fixes
   - Adding "wattman" like functionality
   - DC crc support
   - Improved DC dual-link handling

  amdkfd:
   - GPUVM support for dGPU
   - KFD events for dGPU
   - Enable PCIe atomics for dGPUs
   - HSA process eviction support
   - Live-lock fixes for process eviction
   - VM page table allocation fix for large-bar systems

  panel:
   - Raydium RM68200
   - AUO G104SN02 V2
   - KEO TX31D200VM0BAA
   - ARM Versatile panels

  i915:
   - Cannonlake support enabled
   - AUX-F port support added
   - Icelake base enabling until internal milestone of forcewake support
   - Query uAPI interface (used for GPU topology information currently)
   - Compressed framebuffer support for sprites
   - kmem cache shrinking when GPU is idle
   - Avoid boosting GPU when waited item is being processed already
   - Avoid retraining LSPCON link unnecessarily
   - Decrease request signaling latency
   - Deprecation of I915_SET_COLORKEY_NONE
   - Kerneldoc and compiler warning cleanup for upcoming CI enforcements
   - Full range ycbcr toggling
   - HDCP support

  i915/gvt:
   - Big refactor for shadow ppgtt
   - KBL context save/restore via LRI cmd (Weinan)
   - Properly unmap dma for guest page (Changbin)

  vmwgfx:
   - Lots of various improvements

  etnaviv:
   - Use the drm gpu scheduler
   - prep work for GC7000L support

  vc4:
   - fix alpha blending
   - Expose perf counters to userspace

  pl111:
   - Bandwidth checking/limiting
   - Versatile panel support

  sun4i:
   - A83T HDMI support
   - A80 support
   - YUV plane support
   - H3/H5 HDMI support

  omapdrm:
   - HPD support for DVI connector
   - remove lots of static variables

  msm:
   - DSI updates from 10nm / SDM845
   - fix for race condition with a3xx/a4xx fence completion irq
   - some refactoring/prep work for eventual a6xx support (ie. when we
     have a userspace)
   - a5xx debugfs enhancements
   - some mdp5 fixes/cleanups to prepare for eventually merging
     writeback
   - support (ie. when we have a userspace)

  tegra:
   - mmap() fixes for fbdev devices
   - Overlay plane for hw cursor fix
   - dma-buf cache maintenance support

  mali-dp:
   - YUV->RGB conversion support

  rockchip:
   - rk3399/chromebook fixes and improvements

  rcar-du:
   - LVDS support move to drm bridge
   - DT bindings for R8A77995
   - Driver/DT support for R8A77970

  tilcdc:
   - DRM panel support"

* tag 'drm-for-v4.17' of git://people.freedesktop.org/~airlied/linux: (1646 commits)
  drm/i915: Fix hibernation with ACPI S0 target state
  drm/i915/execlists: Use a locked clear_bit() for synchronisation with interrupt
  drm/i915: Specify which engines to reset following semaphore/event lockups
  drm/i915/dp: Write to SET_POWER dpcd to enable MST hub.
  drm/amdkfd: Use ordered workqueue to restore processes
  drm/amdgpu: Fix acquiring VM on large-BAR systems
  drm/amd/pp: clean header file hwmgr.h
  drm/amd/pp: use mlck_table.count for array loop index limit
  drm: Fix uabi regression by allowing garbage mode->type from userspace
  drm/amdgpu: Add an ATPX quirk for hybrid laptop
  drm/amdgpu: fix spelling mistake: "asssert" -> "assert"
  drm/amd/pp: Add new asic support in pp_psm.c
  drm/amd/pp: Clean up powerplay code on Vega12
  drm/amd/pp: Add smu irq handlers for legacy asics
  drm/amd/pp: Fix set wrong temperature range on smu7
  drm/amdgpu: Don't change preferred domian when fallback GTT v5
  drm/vmwgfx: Bump version patchlevel and date
  drm/vmwgfx: use monotonic event timestamps
  drm/vmwgfx: Unpin the screen object backup buffer when not used
  drm/vmwgfx: Stricter count of legacy surface device resources
  ...

6 files changed, 34 insertions, 36 deletions

diff --git a/drivers/gpu/drm/tilcdc/Kconfig b/drivers/gpu/drm/tilcdc/Kconfig
index 81ac82455ce4..52598049c096 100644
--- a/drivers/gpu/drm/tilcdc/Kconfig
+++ b/drivers/gpu/drm/tilcdc/Kconfig
@@ -4,6 +4,8 @@ config DRM_TILCDC
 	select DRM_KMS_HELPER
 	select DRM_KMS_CMA_HELPER
 	select DRM_GEM_CMA_HELPER
+	select DRM_BRIDGE
+	select DRM_PANEL_BRIDGE
 	select VIDEOMODE_HELPERS
 	select BACKLIGHT_CLASS_DEVICE
 	select BACKLIGHT_LCD_SUPPORT
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index 8bf6bb93dc79..1b278a22c8b7 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -994,10 +994,8 @@ int tilcdc_crtc_create(struct drm_device *dev)
 	int ret;
 
 	tilcdc_crtc = devm_kzalloc(dev->dev, sizeof(*tilcdc_crtc), GFP_KERNEL);
-	if (!tilcdc_crtc) {
-		dev_err(dev->dev, "allocation failed\n");
+	if (!tilcdc_crtc)
 		return -ENOMEM;
-	}
 
 	init_completion(&tilcdc_crtc->palette_loaded);
 	tilcdc_crtc->palette_base = dmam_alloc_coherent(dev->dev,
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index 1afde61f1247..b8a5e4ed22e6 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -233,10 +233,8 @@ static int tilcdc_init(struct drm_driver *ddrv, struct device *dev)
 	int ret;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv) {
-		dev_err(dev, "failed to allocate private data\n");
+	if (!priv)
 		return -ENOMEM;
-	}
 
 	ddev = drm_dev_alloc(ddrv, dev);
 	if (IS_ERR(ddev))
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_external.c b/drivers/gpu/drm/tilcdc/tilcdc_external.c
index 711c7b3289d3..d651bdd6597e 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_external.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_external.c
@@ -188,18 +188,16 @@ int tilcdc_attach_bridge(struct drm_device *ddev, struct drm_bridge *bridge)
 int tilcdc_attach_external_device(struct drm_device *ddev)
 {
 	struct tilcdc_drm_private *priv = ddev->dev_private;
-	struct device_node *remote_node;
 	struct drm_bridge *bridge;
+	struct drm_panel *panel;
 	int ret;
 
-	remote_node = of_graph_get_remote_node(ddev->dev->of_node, 0, 0);
-	if (!remote_node)
+	ret = drm_of_find_panel_or_bridge(ddev->dev->of_node, 0, 0,
+					  &panel, &bridge);
+	if (ret == -ENODEV)
 		return 0;
-
-	bridge = of_drm_find_bridge(remote_node);
-	of_node_put(remote_node);
-	if (!bridge)
-		return -EPROBE_DEFER;
+	else if (ret)
+		return ret;
 
 	priv->external_encoder = devm_kzalloc(ddev->dev,
 					      sizeof(*priv->external_encoder),
@@ -215,10 +213,23 @@ int tilcdc_attach_external_device(struct drm_device *ddev)
 		return ret;
 	}
 
+	if (panel) {
+		bridge = devm_drm_panel_bridge_add(ddev->dev, panel,
+						   DRM_MODE_CONNECTOR_DPI);
+		if (IS_ERR(bridge)) {
+			ret = PTR_ERR(bridge);
+			goto err_encoder_cleanup;
+		}
+	}
+
 	ret = tilcdc_attach_bridge(ddev, bridge);
 	if (ret)
-		drm_encoder_cleanup(priv->external_encoder);
+		goto err_encoder_cleanup;
+
+	return 0;
 
+err_encoder_cleanup:
+	drm_encoder_cleanup(priv->external_encoder);
 	return ret;
 }
 
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_panel.c b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
index 8eebb5f826a6..d616d64a6725 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_panel.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_panel.c
@@ -101,10 +101,8 @@ static struct drm_encoder *panel_encoder_create(struct drm_device *dev,
 
 	panel_encoder = devm_kzalloc(dev->dev, sizeof(*panel_encoder),
 				     GFP_KERNEL);
-	if (!panel_encoder) {
-		dev_err(dev->dev, "allocation failed\n");
+	if (!panel_encoder)
 		return NULL;
-	}
 
 	panel_encoder->mod = mod;
 
@@ -210,10 +208,8 @@ static struct drm_connector *panel_connector_create(struct drm_device *dev,
 
 	panel_connector = devm_kzalloc(dev->dev, sizeof(*panel_connector),
 				       GFP_KERNEL);
-	if (!panel_connector) {
-		dev_err(dev->dev, "allocation failed\n");
+	if (!panel_connector)
 		return NULL;
-	}
 
 	panel_connector->encoder = encoder;
 	panel_connector->mod = mod;
@@ -293,11 +289,8 @@ static struct tilcdc_panel_info *of_get_panel_info(struct device_node *np)
 	}
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
-	if (!info) {
-		pr_err("%s: allocation failed\n", __func__);
-		of_node_put(info_np);
-		return NULL;
-	}
+	if (!info)
+		goto put_node;
 
 	ret |= of_property_read_u32(info_np, "ac-bias", &info->ac_bias);
 	ret |= of_property_read_u32(info_np, "ac-bias-intrpt", &info->ac_bias_intrpt);
@@ -316,11 +309,11 @@ static struct tilcdc_panel_info *of_get_panel_info(struct device_node *np)
 	if (ret) {
 		pr_err("%s: error reading panel-info properties\n", __func__);
 		kfree(info);
-		of_node_put(info_np);
-		return NULL;
+		info = NULL;
 	}
-	of_node_put(info_np);
 
+put_node:
+	of_node_put(info_np);
 	return info;
 }
 
@@ -428,7 +421,7 @@ struct platform_driver panel_driver = {
 	.remove = panel_remove,
 	.driver = {
 		.owner = THIS_MODULE,
-		.name = "panel",
+		.name = "tilcdc-panel",
 		.of_match_table = panel_of_match,
 	},
 };
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
index 7e3643462a08..c45cabb38db0 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_tfp410.c
@@ -111,10 +111,8 @@ static struct drm_encoder *tfp410_encoder_create(struct drm_device *dev,
 
 	tfp410_encoder = devm_kzalloc(dev->dev, sizeof(*tfp410_encoder),
 				      GFP_KERNEL);
-	if (!tfp410_encoder) {
-		dev_err(dev->dev, "allocation failed\n");
+	if (!tfp410_encoder)
 		return NULL;
-	}
 
 	tfp410_encoder->dpms = DRM_MODE_DPMS_OFF;
 	tfp410_encoder->mod = mod;
@@ -224,10 +222,8 @@ static struct drm_connector *tfp410_connector_create(struct drm_device *dev,
 
 	tfp410_connector = devm_kzalloc(dev->dev, sizeof(*tfp410_connector),
 					GFP_KERNEL);
-	if (!tfp410_connector) {
-		dev_err(dev->dev, "allocation failed\n");
+	if (!tfp410_connector)
 		return NULL;
-	}
 
 	tfp410_connector->encoder = encoder;
 	tfp410_connector->mod = mod;