Merge tag 'drm-misc-next-2024-02-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.9:

UAPI Changes:

Cross-subsystem Changes:

dma-buf:
- clean up docs

media:
- tc358743: fix v4l device registration

video:
- move all kernel parameters for video behind CONFIG_VIDEO

sound:
- remove <drm/drm_edid.h> include from header

Core Changes:

ci:
- add tests for msm

managed:
- add drmm_release_action() with tests

ttm:
- fix errno codes
- simply busy-placement handling
- fix page decryption

docs:
- add new external references
- clean up

Driver Changes:

amdgpu:
- clean up

bridge:
- imx: add i.MX8MP HDMI PVI plus DT bindings, add i.MX8MP HDMI TX plus DT
  bindings
- samsung-dsim: add bsh-smm-s2/pro boards
- sii902x: fix probing and unregistration
- tc358767: limit pixel PLL input range
- switch to new drm_bridge_read_edid() interface
- clean up

imx:
- use devm_ functions during init
- clean up

lima:
- fix memory leak

loongson:
- fail if no VRAM present

meson:
- switch to new drm_bridge_read_edid() interface

nouveau:
- clean up

panel:
- add BOE TH101MB31IG002-28A plus DT bindings
- add EDT ETML1010G3DRA plus DT bindings
- add Novatek NT36672E LCD DSI plus DT bindings
- nt36523: support 120Hz timings, fix includes
- simple: fix display timings on RK32FN48H
- visionox-vtdr6130: fix initialization

panel-orientation-quirks:
- GPD Win Mini

vmwgfx:
- list command SVGA_3D_CMD_DEFINE_GB_SURFACE_V4 as invalid
- fix null-pointer deref in execbuf
- refactor display-mode probing
- fix fencing for creating cursor MOBs
- fix cursor-memory lifetime
- clean up

xlnx:
- fix live video input for ZynqMP DPSUB

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240208164242.GA14321@linux.fritz.box

1 files changed, 28 insertions, 8 deletions

diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index cee3188adf3d..a3065d4aa3d6 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -27,8 +27,9 @@
 #include <linux/mutex.h>
 
 #include <drm/drm_atomic_state_helper.h>
-#include <drm/drm_debugfs.h>
 #include <drm/drm_bridge.h>
+#include <drm/drm_debugfs.h>
+#include <drm/drm_edid.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_file.h>
 #include <drm/drm_of.h>
@@ -1207,26 +1208,45 @@ int drm_bridge_get_modes(struct drm_bridge *bridge,
 EXPORT_SYMBOL_GPL(drm_bridge_get_modes);
 
 /**
- * drm_bridge_get_edid - get the EDID data of the connected display
+ * drm_bridge_edid_read - read the EDID data of the connected display
  * @bridge: bridge control structure
  * @connector: the connector to read EDID for
  *
  * If the bridge supports output EDID retrieval, as reported by the
- * DRM_BRIDGE_OP_EDID bridge ops flag, call &drm_bridge_funcs.get_edid to
- * get the EDID and return it. Otherwise return NULL.
+ * DRM_BRIDGE_OP_EDID bridge ops flag, call &drm_bridge_funcs.edid_read to get
+ * the EDID and return it. Otherwise return NULL.
+ *
+ * If &drm_bridge_funcs.edid_read is not set, fall back to using
+ * &drm_bridge_funcs.get_edid and wrapping it in struct drm_edid.
  *
  * RETURNS:
  * The retrieved EDID on success, or NULL otherwise.
  */
-struct edid *drm_bridge_get_edid(struct drm_bridge *bridge,
-				 struct drm_connector *connector)
+const struct drm_edid *drm_bridge_edid_read(struct drm_bridge *bridge,
+					    struct drm_connector *connector)
 {
 	if (!(bridge->ops & DRM_BRIDGE_OP_EDID))
 		return NULL;
 
-	return bridge->funcs->get_edid(bridge, connector);
+	/* Transitional: Fall back to ->get_edid. */
+	if (!bridge->funcs->edid_read) {
+		const struct drm_edid *drm_edid;
+		struct edid *edid;
+
+		edid = bridge->funcs->get_edid(bridge, connector);
+		if (!edid)
+			return NULL;
+
+		drm_edid = drm_edid_alloc(edid, (edid->extensions + 1) * EDID_LENGTH);
+
+		kfree(edid);
+
+		return drm_edid;
+	}
+
+	return bridge->funcs->edid_read(bridge, connector);
 }
-EXPORT_SYMBOL_GPL(drm_bridge_get_edid);
+EXPORT_SYMBOL_GPL(drm_bridge_edid_read);
 
 /**
  * drm_bridge_hpd_enable - enable hot plug detection for the bridge