Merge tag 'drm-next-2021-07-01' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Highlights:

   - AMD enables two more GPUs, with resulting header files

   - i915 has started to move to TTM for discrete GPU and enable DG1
     discrete GPU support (not by default yet)

   - new HyperV drm driver

   - vmwgfx adds arm64 support

   - TTM refactoring ongoing

   - 16bpc display support for AMD hw

  Otherwise it's just the usual insane amounts of work all over the
  place in lots of drivers and the core, as mostly summarised below:

  Core:
   - mark AGP ioctls as legacy
   - disable force probing for non-master clients
   - HDR metadata property helpers
   - HDMI infoframe signal colorimetry support
   - remove drm_device.pdev pointer
   - remove DRM_KMS_FB_HELPER config option
   - remove drm_pci_alloc/free
   - drm_err_*/drm_dbg_* helpers
   - use drm driver names for fbdev
   - leaked DMA handle fix
   - 16bpc fixed point format fourcc
   - add prefetching memcpy for WC
   - Documentation fixes

  aperture:
   - add aperture ownership helpers

  dp:
   - aux fixes
   - downstream 0 port handling
   - use extended base receiver capability DPCD
   - Rename DP_PSR_SELECTIVE_UPDATE to better mach eDP spec
   - mst: use khz as link rate during init
   - VCPI fixes for StarTech hub

  ttm:
   - provide tt_shrink file via debugfs
   - warn about freeing pinned BOs
   - fix swapping error handling
   - move page alignment into BO
   - cleanup ttm_agp_backend
   - add ttm_sys_manager
   - don't override vm_ops
   - ttm_bo_mmap removed
   - make ttm_resource base of all managers
   - remove VM_MIXEDMAP usage

  panel:
   - sysfs_emit support
   - simple: runtime PM support
   - simple: power up panel when reading EDID + caching

  bridge:
   - MHDP8546: HDCP support + DT bindings
   - MHDP8546: Register DP AUX channel with userspace
   - TI SN65DSI83 + SN65DSI84: add driver
   - Sil8620: Fix module dependencies
   - dw-hdmi: make CEC driver loading optional
   - Ti-sn65dsi86: refclk fixes, subdrivers, runtime pm
   - It66121: Add driver + DT bindings
   - Adv7511: Support I2S IEC958 encoding
   - Anx7625: fix power-on delay
   - Nwi-dsi: Modesetting fixes; Cleanups
   - lt6911: add missing MODULE_DEVICE_TABLE
   - cdns: fix PM reference leak

  hyperv:
   - add new DRM driver for HyperV graphics

  efifb:
   - non-PCI device handling fixes

  i915:
   - refactor IP/device versioning
   - XeLPD Display IP preperation work
   - ADL-P enablement patches
   - DG1 uAPI behind BROKEN
   - disable mmap ioctl for discerte GPUs
   - start enabling HuC loading for Gen12+
   - major GuC backend rework for new platforms
   - initial TTM support for Discrete GPUs
   - locking rework for TTM prep
   - use correct max source link rate for eDP
   - %p4cc format printing
   - GLK display fixes
   - VLV DSI panel power fixes
   - PSR2 disabled for RKL and ADL-S
   - ACPI _DSM invalid access fixed
   - DMC FW path abstraction
   - ADL-S PCI ID update
   - uAPI headers converted to kerneldoc
   - initial LMEM support for DG1
   - x86/gpu: add Jasperlake to gen11 early quirks

  amdgpu:
   - Aldebaran updates + initial SR-IOV
   - new GPU: Beige Goby and Yellow Carp support
   - more LTTPR display work
   - Vangogh updates
   - SDMA 5.x GCR fixes
   - PCIe ASPM support
   - Renoir TMZ enablement
   - initial multiple eDP panel support
   - use fdinfo to track devices/process info
   - pin/unpin TTM fixes
   - free resource on fence usage query
   - fix fence calculation
   - fix hotunplug/suspend issues
   - GC/MM register access macro cleanup for SR-IOV
   - W=1 fixes
   - ACPI ATCS/ATIF handling rework
   - 16bpc fixed point format support
   - Initial smartshift support
   - RV/PCO power tuning fixes
   - new INFO query for additional vbios info

  amdkfd:
   - SR-IOV aldebaran support
   - HMM SVM support

  radeon:
   - SMU regression fixes
   - Oland flickering fix

  vmwgfx:
   - enable console with fbdev emulation
   - fix cpu updates of coherent multisample surfaces
   - remove reservation semaphore
   - add initial SVGA3 support
   - support arm64

  msm:
   - devcoredump support for display errors
   - dpu/dsi: yaml bindings conversion
   - mdp5: alpha/blend_mode/zpos support
   - a6xx: cached coherent buffer support
   - gpu iova fault improvement
   - a660 support

  rockchip:
   - RK3036 win1 scaling support
   - RK3066/3188 missing register support
   - RK3036/3066/3126/3188 alpha support

  mediatek:
   - MT8167 HDMI support
   - MT8183 DPI dual edge support

  tegra:
   - fixed YUV support/scaling on Tegra186+

  ast:
   - use pcim_iomap
   - fix DP501 EDID

  bochs:
   - screen blanking support

  etnaviv:
   - export more GPU ID values to userspace
   - add HWDB entry for GPU on i.MX8MP
   - rework linear window calcs

  exynos:
   - pm runtime changes

  imx:
   - Annotate dma_fence critical section
   - fix PRG modifiers after drmm conversion
   - Add 8 pixel alignment fix for 1366x768
   - fix YUV advertising
   - add color properties

  ingenic:
   - IPU planes fix

  panfrost:
   - Mediatek MT8183 support + DT bindings
   - export AFBC_FEATURES register to userspace

  simpledrm:
   - %pr for printing resources

  nouveau:
   - pin/unpin TTM fixes

  qxl:
   - unpin shadow BO

  virtio:
   - create dumb BOs as guest blob

  vkms:
   - drmm_universal_plane_alloc
   - add XRGB plane composition
   - overlay support"

* tag 'drm-next-2021-07-01' of git://anongit.freedesktop.org/drm/drm: (1570 commits)
  drm/i915: Reinstate the mmap ioctl for some platforms
  drm/i915/dsc: abstract helpers to get bigjoiner primary/secondary crtc
  Revert "drm/msm/mdp5: provide dynamic bandwidth management"
  drm/msm/mdp5: provide dynamic bandwidth management
  drm/msm/mdp5: add perf blocks for holding fudge factors
  drm/msm/mdp5: switch to standard zpos property
  drm/msm/mdp5: add support for alpha/blend_mode properties
  drm/msm/mdp5: use drm_plane_state for pixel blend mode
  drm/msm/mdp5: use drm_plane_state for storing alpha value
  drm/msm/mdp5: use drm atomic helpers to handle base drm plane state
  drm/msm/dsi: do not enable PHYs when called for the slave DSI interface
  drm/msm: Add debugfs to trigger shrinker
  drm/msm/dpu: Avoid ABBA deadlock between IRQ modules
  drm/msm: devcoredump iommu fault support
  iommu/arm-smmu-qcom: Add stall support
  drm/msm: Improve the a6xx page fault handler
  iommu/arm-smmu-qcom: Add an adreno-smmu-priv callback to get pagefault info
  iommu/arm-smmu: Add support for driver IOMMU fault handlers
  drm/msm: export hangcheck_period in debugfs
  drm/msm/a6xx: add support for Adreno 660 GPU
  ...

6 files changed, 110 insertions, 51 deletions

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index 4894913936e9..ef87d92cdf49 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -80,6 +80,7 @@ config DRM_PANEL_SIMPLE
 	tristate "support for simple panels"
 	depends on OF
 	depends on BACKLIGHT_CLASS_DEVICE
+	depends on PM
 	select VIDEOMODE_HELPERS
 	help
 	  DRM panel driver for dumb panels that need at most a regulator and
diff --git a/drivers/gpu/drm/panel/panel-elida-kd35t133.c b/drivers/gpu/drm/panel/panel-elida-kd35t133.c
index fe5ac3ef9018..4787f0833264 100644
--- a/drivers/gpu/drm/panel/panel-elida-kd35t133.c
+++ b/drivers/gpu/drm/panel/panel-elida-kd35t133.c
@@ -42,6 +42,7 @@ struct kd35t133 {
 	struct gpio_desc *reset_gpio;
 	struct regulator *vdd;
 	struct regulator *iovcc;
+	enum drm_panel_orientation orientation;
 	bool prepared;
 };
 
@@ -216,6 +217,7 @@ static int kd35t133_get_modes(struct drm_panel *panel,
 	connector->display_info.width_mm = mode->width_mm;
 	connector->display_info.height_mm = mode->height_mm;
 	drm_mode_probed_add(connector, mode);
+	drm_connector_set_panel_orientation(connector, ctx->orientation);
 
 	return 1;
 }
@@ -258,6 +260,12 @@ static int kd35t133_probe(struct mipi_dsi_device *dsi)
 		return ret;
 	}
 
+	ret = of_drm_get_panel_orientation(dev->of_node, &ctx->orientation);
+	if (ret < 0) {
+		dev_err(dev, "%pOF: failed to get orientation %d\n", dev->of_node, ret);
+		return ret;
+	}
+
 	mipi_dsi_set_drvdata(dsi, ctx);
 
 	ctx->dev = dev;
diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
index 5e9ccefb88f6..2229f1af2ca8 100644
--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@@ -29,7 +29,7 @@
  * DEALINGS IN THE SOFTWARE.
  */
 
-/**
+/*
  * Raspberry Pi 7" touchscreen panel driver.
  *
  * The 7" touchscreen consists of a DPI LCD panel, a Toshiba
diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c
index 9c3563c61e8c..07a48f621289 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c
@@ -27,7 +27,7 @@ static int s6e63m0_dsi_dcs_read(struct device *dev, const u8 cmd, u8 *data)
 		return ret;
 	}
 
-	dev_info(dev, "DSI read CMD %02x = %02x\n", cmd, *data);
+	dev_dbg(dev, "DSI read CMD %02x = %02x\n", cmd, *data);
 
 	return 0;
 }
@@ -42,7 +42,7 @@ static int s6e63m0_dsi_dcs_write(struct device *dev, const u8 *data, size_t len)
 	int chunk;
 	int ret;
 
-	dev_info(dev, "DSI writing dcs seq: %*ph\n", (int)len, data);
+	dev_dbg(dev, "DSI writing dcs seq: %*ph\n", (int)len, data);
 
 	/* Pick out and skip past the DCS command */
 	cmd = *seqp;
@@ -80,7 +80,7 @@ static int s6e63m0_dsi_dcs_write(struct device *dev, const u8 *data, size_t len)
 		cmdwritten += chunk;
 		seqp += chunk;
 	}
-	dev_info(dev, "sent command %02x %02x bytes\n", cmd, cmdwritten);
+	dev_dbg(dev, "sent command %02x %02x bytes\n", cmd, cmdwritten);
 
 	usleep_range(8000, 9000);
 
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index be312b5c04dd..21939d4352cf 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -27,6 +27,7 @@
 #include <linux/module.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
 
 #include <video/display_timing.h>
@@ -175,6 +176,8 @@ struct panel_simple {
 	bool enabled;
 	bool no_hpd;
 
+	bool prepared;
+
 	ktime_t prepared_time;
 	ktime_t unprepared_time;
 
@@ -186,6 +189,8 @@ struct panel_simple {
 	struct gpio_desc *enable_gpio;
 	struct gpio_desc *hpd_gpio;
 
+	struct edid *edid;
+
 	struct drm_display_mode override_mode;
 
 	enum drm_panel_orientation orientation;
@@ -334,25 +339,39 @@ static int panel_simple_disable(struct drm_panel *panel)
 	return 0;
 }
 
+static int panel_simple_suspend(struct device *dev)
+{
+	struct panel_simple *p = dev_get_drvdata(dev);
+
+	gpiod_set_value_cansleep(p->enable_gpio, 0);
+	regulator_disable(p->supply);
+	p->unprepared_time = ktime_get();
+
+	kfree(p->edid);
+	p->edid = NULL;
+
+	return 0;
+}
+
 static int panel_simple_unprepare(struct drm_panel *panel)
 {
 	struct panel_simple *p = to_panel_simple(panel);
+	int ret;
 
-	if (p->prepared_time == 0)
+	/* Unpreparing when already unprepared is a no-op */
+	if (!p->prepared)
 		return 0;
 
-	gpiod_set_value_cansleep(p->enable_gpio, 0);
-
-	regulator_disable(p->supply);
-
-	p->prepared_time = 0;
-	p->unprepared_time = ktime_get();
+	pm_runtime_mark_last_busy(panel->dev);
+	ret = pm_runtime_put_autosuspend(panel->dev);
+	if (ret < 0)
+		return ret;
+	p->prepared = false;
 
 	return 0;
 }
 
-static int panel_simple_get_hpd_gpio(struct device *dev,
-				     struct panel_simple *p, bool from_probe)
+static int panel_simple_get_hpd_gpio(struct device *dev, struct panel_simple *p)
 {
 	int err;
 
@@ -360,38 +379,28 @@ static int panel_simple_get_hpd_gpio(struct device *dev,
 	if (IS_ERR(p->hpd_gpio)) {
 		err = PTR_ERR(p->hpd_gpio);
 
-		/*
-		 * If we're called from probe we won't consider '-EPROBE_DEFER'
-		 * to be an error--we'll leave the error code in "hpd_gpio".
-		 * When we try to use it we'll try again.  This allows for
-		 * circular dependencies where the component providing the
-		 * hpd gpio needs the panel to init before probing.
-		 */
-		if (err != -EPROBE_DEFER || !from_probe) {
+		if (err != -EPROBE_DEFER)
 			dev_err(dev, "failed to get 'hpd' GPIO: %d\n", err);
-			return err;
-		}
+
+		return err;
 	}
 
 	return 0;
 }
 
-static int panel_simple_prepare_once(struct drm_panel *panel)
+static int panel_simple_prepare_once(struct panel_simple *p)
 {
-	struct panel_simple *p = to_panel_simple(panel);
+	struct device *dev = p->base.dev;
 	unsigned int delay;
 	int err;
 	int hpd_asserted;
 	unsigned long hpd_wait_us;
 
-	if (p->prepared_time != 0)
-		return 0;
-
 	panel_simple_wait(p->unprepared_time, p->desc->delay.unprepare);
 
 	err = regulator_enable(p->supply);
 	if (err < 0) {
-		dev_err(panel->dev, "failed to enable supply: %d\n", err);
+		dev_err(dev, "failed to enable supply: %d\n", err);
 		return err;
 	}
 
@@ -404,12 +413,6 @@ static int panel_simple_prepare_once(struct drm_panel *panel)
 		msleep(delay);
 
 	if (p->hpd_gpio) {
-		if (IS_ERR(p->hpd_gpio)) {
-			err = panel_simple_get_hpd_gpio(panel->dev, p, false);
-			if (err)
-				goto error;
-		}
-
 		if (p->desc->delay.hpd_absent_delay)
 			hpd_wait_us = p->desc->delay.hpd_absent_delay * 1000UL;
 		else
@@ -423,7 +426,7 @@ static int panel_simple_prepare_once(struct drm_panel *panel)
 
 		if (err) {
 			if (err != -ETIMEDOUT)
-				dev_err(panel->dev,
+				dev_err(dev,
 					"error waiting for hpd GPIO: %d\n", err);
 			goto error;
 		}
@@ -447,25 +450,46 @@ error:
  */
 #define MAX_PANEL_PREPARE_TRIES		5
 
-static int panel_simple_prepare(struct drm_panel *panel)
+static int panel_simple_resume(struct device *dev)
 {
+	struct panel_simple *p = dev_get_drvdata(dev);
 	int ret;
 	int try;
 
 	for (try = 0; try < MAX_PANEL_PREPARE_TRIES; try++) {
-		ret = panel_simple_prepare_once(panel);
+		ret = panel_simple_prepare_once(p);
 		if (ret != -ETIMEDOUT)
 			break;
 	}
 
 	if (ret == -ETIMEDOUT)
-		dev_err(panel->dev, "Prepare timeout after %d tries\n", try);
+		dev_err(dev, "Prepare timeout after %d tries\n", try);
 	else if (try)
-		dev_warn(panel->dev, "Prepare needed %d retries\n", try);
+		dev_warn(dev, "Prepare needed %d retries\n", try);
 
 	return ret;
 }
 
+static int panel_simple_prepare(struct drm_panel *panel)
+{
+	struct panel_simple *p = to_panel_simple(panel);
+	int ret;
+
+	/* Preparing when already prepared is a no-op */
+	if (p->prepared)
+		return 0;
+
+	ret = pm_runtime_get_sync(panel->dev);
+	if (ret < 0) {
+		pm_runtime_put_autosuspend(panel->dev);
+		return ret;
+	}
+
+	p->prepared = true;
+
+	return 0;
+}
+
 static int panel_simple_enable(struct drm_panel *panel)
 {
 	struct panel_simple *p = to_panel_simple(panel);
@@ -491,13 +515,16 @@ static int panel_simple_get_modes(struct drm_panel *panel,
 
 	/* probe EDID if a DDC bus is available */
 	if (p->ddc) {
-		struct edid *edid = drm_get_edid(connector, p->ddc);
+		pm_runtime_get_sync(panel->dev);
 
-		drm_connector_update_edid_property(connector, edid);
-		if (edid) {
-			num += drm_add_edid_modes(connector, edid);
-			kfree(edid);
-		}
+		if (!p->edid)
+			p->edid = drm_get_edid(connector, p->ddc);
+
+		if (p->edid)
+			num += drm_add_edid_modes(connector, p->edid);
+
+		pm_runtime_mark_last_busy(panel->dev);
+		pm_runtime_put_autosuspend(panel->dev);
 	}
 
 	/* add hard-coded panel modes */
@@ -649,7 +676,7 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
 
 	panel->no_hpd = of_property_read_bool(dev->of_node, "no-hpd");
 	if (!panel->no_hpd) {
-		err = panel_simple_get_hpd_gpio(dev, panel, true);
+		err = panel_simple_get_hpd_gpio(dev, panel);
 		if (err)
 			return err;
 	}
@@ -748,18 +775,31 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
 		break;
 	}
 
+	dev_set_drvdata(dev, panel);
+
+	/*
+	 * We use runtime PM for prepare / unprepare since those power the panel
+	 * on and off and those can be very slow operations. This is important
+	 * to optimize powering the panel on briefly to read the EDID before
+	 * fully enabling the panel.
+	 */
+	pm_runtime_enable(dev);
+	pm_runtime_set_autosuspend_delay(dev, 1000);
+	pm_runtime_use_autosuspend(dev);
+
 	drm_panel_init(&panel->base, dev, &panel_simple_funcs, connector_type);
 
 	err = drm_panel_of_backlight(&panel->base);
 	if (err)
-		goto free_ddc;
+		goto disable_pm_runtime;
 
 	drm_panel_add(&panel->base);
 
-	dev_set_drvdata(dev, panel);
-
 	return 0;
 
+disable_pm_runtime:
+	pm_runtime_dont_use_autosuspend(dev);
+	pm_runtime_disable(dev);
 free_ddc:
 	if (panel->ddc)
 		put_device(&panel->ddc->dev);
@@ -775,6 +815,8 @@ static int panel_simple_remove(struct device *dev)
 	drm_panel_disable(&panel->base);
 	drm_panel_unprepare(&panel->base);
 
+	pm_runtime_dont_use_autosuspend(dev);
+	pm_runtime_disable(dev);
 	if (panel->ddc)
 		put_device(&panel->ddc->dev);
 
@@ -4603,10 +4645,17 @@ static void panel_simple_platform_shutdown(struct platform_device *pdev)
 	panel_simple_shutdown(&pdev->dev);
 }
 
+static const struct dev_pm_ops panel_simple_pm_ops = {
+	SET_RUNTIME_PM_OPS(panel_simple_suspend, panel_simple_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
 static struct platform_driver panel_simple_platform_driver = {
 	.driver = {
 		.name = "panel-simple",
 		.of_match_table = platform_of_match,
+		.pm = &panel_simple_pm_ops,
 	},
 	.probe = panel_simple_platform_probe,
 	.remove = panel_simple_platform_remove,
@@ -4901,6 +4950,7 @@ static struct mipi_dsi_driver panel_simple_dsi_driver = {
 	.driver = {
 		.name = "panel-simple-dsi",
 		.of_match_table = dsi_of_match,
+		.pm = &panel_simple_pm_ops,
 	},
 	.probe = panel_simple_dsi_probe,
 	.remove = panel_simple_dsi_remove,
diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
index 4d2a149b202c..320a2a8fd459 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c
@@ -38,7 +38,7 @@
 #define DSI_CMD2_BK1_SPD2		0xC2 /* Source EQ2 Setting */
 #define DSI_CMD2_BK1_MIPISET1		0xD0 /* MIPI Setting 1 */
 
-/**
+/*
  * Command2 with BK function selection.
  *
  * BIT[4, 0]: [CN2, BKXSEL]