Merge tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux

Pull drm u pdates from Dave Airlie:
 "This is the main drm pull request for v4.12. Apart from two fixes
  pulls, everything should have been in drm-next for at least 2 weeks.

  The biggest thing in here is AMD released the public headers for their
  upcoming VEGA GPUs. These as always are quite a sizeable chunk of
  header files. They've also added initial non-display support for those
  GPUs, though they aren't available in production yet.

  Otherwise it's pretty much normal.

  New bridge drivers:
   - megachips-stdpxxxx-ge-b850v3-fw LVDS->DP++
   - generic LVDS bridge support.

  Core:
   - Displayport link train failure reporting to userspace
   - debugfs interface cleaned up
   - subsystem TODO in kerneldoc now
   - Extended fbdev support (flipping and vblank wait)
   - drm_platform removed
   - EDP CRC support in helper
   - HF-VSDB SCDC support in EDID parser
   - Lots of code cleanups and header extraction
   - Thunderbolt external GPU awareness
   - Atomic helper improvements
   - Documentation improvements

  panel:
   - Sitronix and Samsung new panel support

  amdgpu:
   - Preliminary vega10 support
   - Multi-level page table support
   - GPU sensor support for userspace
   - PRT support for sparse buffers
   - SR-IOV improvements
   - Non-contig VRAM CPU mapping

  i915:
   - Atomic modesetting enabled by default on Gen5+
   - LSPCON improvements
   - Atomic state handling for cdclk
   - GPU reset improvements
   - In-kernel unit tests
   - Geminilake improvements and color manager support
   - Designware i2c fixes
   - vblank evasion improvements
   - Hotplug safe connector iterators
   - GVT scheduler QoS support
   - GVT Kabylake support

  nouveau:
   - Acceleration support for Pascal (GP10x).
   - Rearchitecture of code handling proprietary signed firmware
   - Fix GTX 970 with odd MMU configuration
   - GP10B support
   - GP107 acceleration support

  vmwgfx:
   - Atomic modesetting support for vmwgfx

  omapdrm:
   - Support for render nodes
   - Refactor omapdss code
   - Fix some probe ordering issues
   - Fix too dark RGB565 rendering

  sunxi:
   - prelim rework for multiple pipes.

  mali-dp:
   - Color management support
   - Plane scaling
   - Power management improvements

  imx-drm:
   - Prefetch Resolve Engine/Gasket on i.MX6QP
   - Deferred plane disabling
   - Separate alpha support

  mediatek:
   - Mediatek SoC MT2701 support

  rcar-du:
   - Gen3 HDMI support

  msm:
   - 4k support for newer chips
   - OPP bindings for gpu
   - prep work for per-process pagetables

  vc4:
   - HDMI audio support
   - fixes

  qxl:
   - minor fixes.

  dw-hdmi:
   - PHY improvements
   - CSC fixes
   - Amlogic GX SoC support"

* tag 'drm-for-v4.12' of git://people.freedesktop.org/~airlied/linux: (1778 commits)
  drm/nouveau/fb/gf100-: Fix 32 bit wraparound in new ram detection
  drm/nouveau/secboot/gm20b: fix the error return code in gm20b_secboot_tegra_read_wpr()
  drm/nouveau/kms: Increase max retries in scanout position queries.
  drm/nouveau/bios/bitP: check that table is long enough for optional pointers
  drm/nouveau/fifo/nv40: no ctxsw for pre-nv44 mpeg engine
  drm: mali-dp: use div_u64 for expensive 64-bit divisions
  drm/i915: Confirm the request is still active before adding it to the await
  drm/i915: Avoid busy-spinning on VLV_GLTC_PW_STATUS mmio
  drm/i915/selftests: Allocate inode/file dynamically
  drm/i915: Fix system hang with EI UP masked on Haswell
  drm/i915: checking for NULL instead of IS_ERR() in mock selftests
  drm/i915: Perform link quality check unconditionally during long pulse
  drm/i915: Fix use after free in lpe_audio_platdev_destroy()
  drm/i915: Use the right mapping_gfp_mask for final shmem allocation
  drm/i915: Make legacy cursor updates more unsynced
  drm/i915: Apply a cond_resched() to the saturated signaler
  drm/i915: Park the signaler before sleeping
  drm: mali-dp: Check the mclk rate and allow up/down scaling
  drm: mali-dp: Enable image enhancement when scaling
  drm: mali-dp: Add plane upscaling support
  ...

1 files changed, 45 insertions, 44 deletions

diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index 4a862a358c70..d44465190dc1 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -434,6 +434,7 @@ int intel_opregion_notify_adapter(struct drm_i915_private *dev_priv,
 static u32 asle_set_backlight(struct drm_i915_private *dev_priv, u32 bclp)
 {
 	struct intel_connector *connector;
+	struct drm_connector_list_iter conn_iter;
 	struct opregion_asle *asle = dev_priv->opregion.asle;
 	struct drm_device *dev = &dev_priv->drm;
 
@@ -458,8 +459,10 @@ static u32 asle_set_backlight(struct drm_i915_private *dev_priv, u32 bclp)
 	 * only one).
 	 */
 	DRM_DEBUG_KMS("updating opregion backlight %d/255\n", bclp);
-	for_each_intel_connector(dev, connector)
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	for_each_intel_connector_iter(connector, &conn_iter)
 		intel_panel_set_backlight_acpi(connector, bclp, 255);
+	drm_connector_list_iter_end(&conn_iter);
 	asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID;
 
 	drm_modeset_unlock(&dev->mode_config.connection_mutex);
@@ -701,6 +704,7 @@ static void intel_didl_outputs(struct drm_i915_private *dev_priv)
 {
 	struct intel_opregion *opregion = &dev_priv->opregion;
 	struct intel_connector *connector;
+	struct drm_connector_list_iter conn_iter;
 	int i = 0, max_outputs;
 	int display_index[16] = {};
 
@@ -714,7 +718,8 @@ static void intel_didl_outputs(struct drm_i915_private *dev_priv)
 	max_outputs = ARRAY_SIZE(opregion->acpi->didl) +
 		ARRAY_SIZE(opregion->acpi->did2);
 
-	for_each_intel_connector(&dev_priv->drm, connector) {
+	drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter);
+	for_each_intel_connector_iter(connector, &conn_iter) {
 		u32 device_id, type;
 
 		device_id = acpi_display_type(connector);
@@ -729,6 +734,7 @@ static void intel_didl_outputs(struct drm_i915_private *dev_priv)
 			set_did(opregion, i, device_id);
 		i++;
 	}
+	drm_connector_list_iter_end(&conn_iter);
 
 	DRM_DEBUG_KMS("%d outputs detected\n", i);
 
@@ -745,6 +751,7 @@ static void intel_setup_cadls(struct drm_i915_private *dev_priv)
 {
 	struct intel_opregion *opregion = &dev_priv->opregion;
 	struct intel_connector *connector;
+	struct drm_connector_list_iter conn_iter;
 	int i = 0;
 
 	/*
@@ -757,11 +764,13 @@ static void intel_setup_cadls(struct drm_i915_private *dev_priv)
 	 * Note that internal panels should be at the front of the connector
 	 * list already, ensuring they're not left out.
 	 */
-	for_each_intel_connector(&dev_priv->drm, connector) {
+	drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter);
+	for_each_intel_connector_iter(connector, &conn_iter) {
 		if (i >= ARRAY_SIZE(opregion->acpi->cadl))
 			break;
 		opregion->acpi->cadl[i++] = connector->acpi_device_id;
 	}
+	drm_connector_list_iter_end(&conn_iter);
 
 	/* If fewer than 8 active devices, the list must be null terminated */
 	if (i < ARRAY_SIZE(opregion->acpi->cadl))
@@ -911,6 +920,8 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
 	char buf[sizeof(OPREGION_SIGNATURE)];
 	int err = 0;
 	void *base;
+	const void *vbt;
+	u32 vbt_size;
 
 	BUILD_BUG_ON(sizeof(struct opregion_header) != 0x100);
 	BUILD_BUG_ON(sizeof(struct opregion_acpi) != 0x100);
@@ -963,45 +974,46 @@ int intel_opregion_setup(struct drm_i915_private *dev_priv)
 	if (mboxes & MBOX_ASLE_EXT)
 		DRM_DEBUG_DRIVER("ASLE extension supported\n");
 
-	if (!dmi_check_system(intel_no_opregion_vbt)) {
-		const void *vbt = NULL;
-		u32 vbt_size = 0;
-
-		if (opregion->header->opregion_ver >= 2 && opregion->asle &&
-		    opregion->asle->rvda && opregion->asle->rvds) {
-			opregion->rvda = memremap(opregion->asle->rvda,
-						  opregion->asle->rvds,
-						  MEMREMAP_WB);
-			vbt = opregion->rvda;
-			vbt_size = opregion->asle->rvds;
-		}
+	if (dmi_check_system(intel_no_opregion_vbt))
+		goto out;
 
+	if (opregion->header->opregion_ver >= 2 && opregion->asle &&
+	    opregion->asle->rvda && opregion->asle->rvds) {
+		opregion->rvda = memremap(opregion->asle->rvda,
+					  opregion->asle->rvds,
+					  MEMREMAP_WB);
+		vbt = opregion->rvda;
+		vbt_size = opregion->asle->rvds;
 		if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
 			DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (RVDA)\n");
 			opregion->vbt = vbt;
 			opregion->vbt_size = vbt_size;
+			goto out;
 		} else {
-			vbt = base + OPREGION_VBT_OFFSET;
-			/*
-			 * The VBT specification says that if the ASLE ext
-			 * mailbox is not used its area is reserved, but
-			 * on some CHT boards the VBT extends into the
-			 * ASLE ext area. Allow this even though it is
-			 * against the spec, so we do not end up rejecting
-			 * the VBT on those boards (and end up not finding the
-			 * LCD panel because of this).
-			 */
-			vbt_size = (mboxes & MBOX_ASLE_EXT) ?
-				OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE;
-			vbt_size -= OPREGION_VBT_OFFSET;
-			if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
-				DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (Mailbox #4)\n");
-				opregion->vbt = vbt;
-				opregion->vbt_size = vbt_size;
-			}
+			DRM_DEBUG_KMS("Invalid VBT in ACPI OpRegion (RVDA)\n");
 		}
 	}
 
+	vbt = base + OPREGION_VBT_OFFSET;
+	/*
+	 * The VBT specification says that if the ASLE ext mailbox is not used
+	 * its area is reserved, but on some CHT boards the VBT extends into the
+	 * ASLE ext area. Allow this even though it is against the spec, so we
+	 * do not end up rejecting the VBT on those boards (and end up not
+	 * finding the LCD panel because of this).
+	 */
+	vbt_size = (mboxes & MBOX_ASLE_EXT) ?
+		OPREGION_ASLE_EXT_OFFSET : OPREGION_SIZE;
+	vbt_size -= OPREGION_VBT_OFFSET;
+	if (intel_bios_is_valid_vbt(vbt, vbt_size)) {
+		DRM_DEBUG_KMS("Found valid VBT in ACPI OpRegion (Mailbox #4)\n");
+		opregion->vbt = vbt;
+		opregion->vbt_size = vbt_size;
+	} else {
+		DRM_DEBUG_KMS("Invalid VBT in ACPI OpRegion (Mailbox #4)\n");
+	}
+
+out:
 	return 0;
 
 err_out:
@@ -1061,16 +1073,5 @@ intel_opregion_get_panel_type(struct drm_i915_private *dev_priv)
 		return -ENODEV;
 	}
 
-	/*
-	 * FIXME On Dell XPS 13 9350 the OpRegion panel type (0) gives us
-	 * low vswing for eDP, whereas the VBT panel type (2) gives us normal
-	 * vswing instead. Low vswing results in some display flickers, so
-	 * let's simply ignore the OpRegion panel type on SKL for now.
-	 */
-	if (IS_SKYLAKE(dev_priv)) {
-		DRM_DEBUG_KMS("Ignoring OpRegion panel type (%d)\n", ret - 1);
-		return -ENODEV;
-	}
-
 	return ret - 1;
 }