Merge tag 'drm-misc-next-2022-06-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v5.20:

UAPI Changes:

 * media: Add various RGB666 and RGB888 format constants

Cross-subsystem Changes:

 * media: Documentation

Core Changes:

 * aperture: Fix segfault during hot-unplug

 * dp: Support waiting for HDP signal, plus driver updates;
   Port-validation fixes

 * fbcon: Improve scrolling performance; Sanitize input

 * Clean up <drm/drm_crtc.h>

Driver Changes:

 * amdgpu: Cleanups

 * bridge: Add support for i.MX8qxp and i.MX8qm; anx7625: DPI fixes;
   tc358775: Fix clock settings; ti-sn65dsi83: Allow GPIO to sleep

 * panel: Set orientation from panel, plus driver updates

 * Several small cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/YrQeAAVvQ6jxu2dl@linux-uq9g

6 files changed, 64 insertions, 5 deletions

diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index c5f8f45511ed..db0fe9f8a612 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -390,6 +390,36 @@ struct drm_dp_aux {
 			    struct drm_dp_aux_msg *msg);
 
 	/**
+	 * @wait_hpd_asserted: wait for HPD to be asserted
+	 *
+	 * This is mainly useful for eDP panels drivers to wait for an eDP
+	 * panel to finish powering on. This is an optional function.
+	 *
+	 * This function will efficiently wait for the HPD signal to be
+	 * asserted. The `wait_us` parameter that is passed in says that we
+	 * know that the HPD signal is expected to be asserted within `wait_us`
+	 * microseconds. This function could wait for longer than `wait_us` if
+	 * the logic in the DP controller has a long debouncing time. The
+	 * important thing is that if this function returns success that the
+	 * DP controller is ready to send AUX transactions.
+	 *
+	 * This function returns 0 if HPD was asserted or -ETIMEDOUT if time
+	 * expired and HPD wasn't asserted. This function should not print
+	 * timeout errors to the log.
+	 *
+	 * The semantics of this function are designed to match the
+	 * readx_poll_timeout() function. That means a `wait_us` of 0 means
+	 * to wait forever. Like readx_poll_timeout(), this function may sleep.
+	 *
+	 * NOTE: this function specifically reports the state of the HPD pin
+	 * that's associated with the DP AUX channel. This is different from
+	 * the HPD concept in much of the rest of DRM which is more about
+	 * physical presence of a display. For eDP, for instance, a display is
+	 * assumed always present even if the HPD pin is deasserted.
+	 */
+	int (*wait_hpd_asserted)(struct drm_dp_aux *aux, unsigned long wait_us);
+
+	/**
 	 * @i2c_nack_count: Counts I2C NACKs, used for DP validation.
 	 */
 	unsigned i2c_nack_count;
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 42aec8612f37..d434ab416ad4 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -918,16 +918,30 @@ void drm_bridge_hpd_notify(struct drm_bridge *bridge,
 			   enum drm_connector_status status);
 
 #ifdef CONFIG_DRM_PANEL_BRIDGE
+bool drm_bridge_is_panel(const struct drm_bridge *bridge);
 struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel);
 struct drm_bridge *drm_panel_bridge_add_typed(struct drm_panel *panel,
 					      u32 connector_type);
 void drm_panel_bridge_remove(struct drm_bridge *bridge);
+int drm_panel_bridge_set_orientation(struct drm_connector *connector,
+				     struct drm_bridge *bridge);
 struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev,
 					     struct drm_panel *panel);
 struct drm_bridge *devm_drm_panel_bridge_add_typed(struct device *dev,
 						   struct drm_panel *panel,
 						   u32 connector_type);
 struct drm_connector *drm_panel_bridge_connector(struct drm_bridge *bridge);
+#else
+static inline bool drm_bridge_is_panel(const struct drm_bridge *bridge)
+{
+	return false;
+}
+
+static inline int drm_panel_bridge_set_orientation(struct drm_connector *connector,
+						   struct drm_bridge *bridge)
+{
+	return -EINVAL;
+}
 #endif
 
 #if defined(CONFIG_OF) && defined(CONFIG_DRM_PANEL_BRIDGE)
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 3ac4bf87f257..94b422b55cc1 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -38,6 +38,7 @@ struct drm_modeset_acquire_ctx;
 struct drm_device;
 struct drm_crtc;
 struct drm_encoder;
+struct drm_panel;
 struct drm_property;
 struct drm_property_blob;
 struct drm_printer;
@@ -1802,6 +1803,9 @@ int drm_connector_set_panel_orientation_with_quirk(
 	struct drm_connector *connector,
 	enum drm_panel_orientation panel_orientation,
 	int width, int height);
+int drm_connector_set_orientation_from_panel(
+	struct drm_connector *connector,
+	struct drm_panel *panel);
 int drm_connector_attach_max_bpc_property(struct drm_connector *connector,
 					  int min, int max);
 void drm_connector_create_privacy_screen_properties(struct drm_connector *conn);
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index a70baea0636c..c404b6e81220 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -36,19 +36,17 @@
 #include <drm/drm_modeset_lock.h>
 #include <drm/drm_rect.h>
 #include <drm/drm_mode_object.h>
-#include <drm/drm_framebuffer.h>
 #include <drm/drm_modes.h>
-#include <drm/drm_connector.h>
 #include <drm/drm_device.h>
 #include <drm/drm_property.h>
-#include <drm/drm_edid.h>
 #include <drm/drm_plane.h>
-#include <drm/drm_blend.h>
 #include <drm/drm_color_mgmt.h>
 #include <drm/drm_debugfs_crc.h>
 #include <drm/drm_mode_config.h>
 
+struct drm_connector;
 struct drm_device;
+struct drm_framebuffer;
 struct drm_mode_set;
 struct drm_file;
 struct drm_clip_rect;
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index d279ee455f01..3a271128c078 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -117,6 +117,15 @@ struct drm_panel_funcs {
 			 struct drm_connector *connector);
 
 	/**
+	 * @get_orientation:
+	 *
+	 * Return the panel orientation set by device tree or EDID.
+	 *
+	 * This function is optional.
+	 */
+	enum drm_panel_orientation (*get_orientation)(struct drm_panel *panel);
+
+	/**
 	 * @get_timings:
 	 *
 	 * Copy display timings into the provided array and return
diff --git a/include/uapi/linux/media-bus-format.h b/include/uapi/linux/media-bus-format.h
index 0dfc11ee243a..ec3323dbb927 100644
--- a/include/uapi/linux/media-bus-format.h
+++ b/include/uapi/linux/media-bus-format.h
@@ -34,7 +34,7 @@
 
 #define MEDIA_BUS_FMT_FIXED			0x0001
 
-/* RGB - next is	0x101e */
+/* RGB - next is	0x1022 */
 #define MEDIA_BUS_FMT_RGB444_1X12		0x1016
 #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_BE	0x1001
 #define MEDIA_BUS_FMT_RGB444_2X8_PADHI_LE	0x1002
@@ -59,9 +59,13 @@
 #define MEDIA_BUS_FMT_RGB888_3X8_DELTA		0x101d
 #define MEDIA_BUS_FMT_RGB888_1X7X4_SPWG		0x1011
 #define MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA	0x1012
+#define MEDIA_BUS_FMT_RGB666_1X30_CPADLO	0x101e
+#define MEDIA_BUS_FMT_RGB888_1X30_CPADLO	0x101f
 #define MEDIA_BUS_FMT_ARGB8888_1X32		0x100d
 #define MEDIA_BUS_FMT_RGB888_1X32_PADHI		0x100f
 #define MEDIA_BUS_FMT_RGB101010_1X30		0x1018
+#define MEDIA_BUS_FMT_RGB666_1X36_CPADLO	0x1020
+#define MEDIA_BUS_FMT_RGB888_1X36_CPADLO	0x1021
 #define MEDIA_BUS_FMT_RGB121212_1X36		0x1019
 #define MEDIA_BUS_FMT_RGB161616_1X48		0x101a