Merge tag 'drm-misc-next-2026-07-02' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for 7.3:

UAPI Changes:

Cross-subsystem Changes:

Core Changes:
- bridge: Add atomic_create_state callback and helpers, drop atomic_reset
- dp: Add support for DSC max delta BPP
- edid: Parse panel type from DisplayID 2.x Display Parameters
- sysfb: Improve panel, stride and framebuffer size validation

Driver Changes:
- hibmc: Improvements to the plane formats handling, switch to gem-shmem
- nouveau: race fixes, misc improvements

- bridges:
  - Convert all bridges to atomic_create_state

- panels:
  - panel-edp: New quirks for BOE NE160QDM-NY1, MB116AS01

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

From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260702-powerful-successful-raptor-eded34@houat

5 files changed, 35 insertions, 27 deletions

diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 829e4d98d61c..7154216e0aff 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -354,15 +354,24 @@
 # define DP_DSC_20_PER_DP_DSC_SINK          (1 << 1)
 # define DP_DSC_24_PER_DP_DSC_SINK          (1 << 2)
 
-#define DP_DSC_BITS_PER_PIXEL_INC           0x06F
+#define DP_DSC_MAX_BPP_DELTA_VERSION_1		0x06E
 # define DP_DSC_RGB_YCbCr444_MAX_BPP_DELTA_MASK 0x1f
-# define DP_DSC_RGB_YCbCr420_MAX_BPP_DELTA_MASK 0xe0
+# define DP_DSC_NATIVE_YCbCr420_MAX_BPP_DELTA_MASK 0xe0
+
+# define DP_DSC_BPP_DELTA_444			16
+# define DP_DSC_BPP_DELTA_420			12
+# define DP_DSC_BPP_DELTA_SHIFT_420		5
+
+#define DP_DSC_BITS_PER_PIXEL_INC           0x06F
 # define DP_DSC_BITS_PER_PIXEL_1_16         0x0
 # define DP_DSC_BITS_PER_PIXEL_1_8          0x1
 # define DP_DSC_BITS_PER_PIXEL_1_4          0x2
 # define DP_DSC_BITS_PER_PIXEL_1_2          0x3
 # define DP_DSC_BITS_PER_PIXEL_1_1          0x4
 # define DP_DSC_BITS_PER_PIXEL_MASK         0x7
+# define DP_DSC_NATIVE_YCbCr422_MAX_BPP_DELTA_MASK  0x78
+# define DP_DSC_BPP_DELTA_NATIVE_SHIFT_422	3
+# define DP_DSC_BPP_DELTA_NATIVE_422		16
 
 #define DP_PSR_SUPPORT                      0x070   /* XXX 1.2? */
 # define DP_PSR_IS_SUPPORTED                1
diff --git a/include/drm/drm_atomic_state_helper.h b/include/drm/drm_atomic_state_helper.h
index f4b6d8833bc2..34a599c3d86d 100644
--- a/include/drm/drm_atomic_state_helper.h
+++ b/include/drm/drm_atomic_state_helper.h
@@ -102,7 +102,7 @@ struct drm_bridge_state *
 drm_atomic_helper_bridge_duplicate_state(struct drm_bridge *bridge);
 void drm_atomic_helper_bridge_destroy_state(struct drm_bridge *bridge,
 					    struct drm_bridge_state *state);
-void __drm_atomic_helper_bridge_reset(struct drm_bridge *bridge,
-				      struct drm_bridge_state *state);
+void __drm_atomic_helper_bridge_state_init(struct drm_bridge_state *state,
+					   struct drm_bridge *bridge);
 struct drm_bridge_state *
-drm_atomic_helper_bridge_reset(struct drm_bridge *bridge);
+drm_atomic_helper_bridge_create_state(struct drm_bridge *bridge);
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 00a95f927e34..18f3db367dc1 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -504,31 +504,20 @@ struct drm_bridge_funcs {
 			    struct drm_connector_state *conn_state);
 
 	/**
-	 * @atomic_reset:
+	 * @atomic_create_state:
 	 *
-	 * Reset the bridge to a predefined state (or retrieve its current
-	 * state) and return a &drm_bridge_state object matching this state.
-	 * This function is called at attach time.
-	 *
-	 * The atomic_reset hook is mandatory if the bridge implements any of
-	 * the atomic hooks, and should be left unassigned otherwise. For
-	 * bridges that don't subclass &drm_bridge_state, the
-	 * drm_atomic_helper_bridge_reset() helper function shall be used to
-	 * implement this hook.
-	 *
-	 * Note that the atomic_reset() semantics is not exactly matching the
-	 * reset() semantics found on other components (connector, plane, ...).
-	 *
-	 * 1. The reset operation happens when the bridge is attached, not when
-	 *    drm_mode_config_reset() is called
-	 * 2. It's meant to be used exclusively on bridges that have been
-	 *    converted to the ATOMIC API
+	 * Allocate a pristine, initialized, state for the bridge
+	 * object and return it. This callback must have no side
+	 * effects: in particular, the returned state must not be
+	 * assigned to the object's state pointer and it must not affect
+	 * the hardware state.
 	 *
 	 * RETURNS:
-	 * A valid drm_bridge_state object in case of success, an ERR_PTR()
-	 * giving the reason of the failure otherwise.
+	 *
+	 * A new, pristine, bridge state instance or an error pointer
+	 * on failure.
 	 */
-	struct drm_bridge_state *(*atomic_reset)(struct drm_bridge *bridge);
+	struct drm_bridge_state *(*atomic_create_state)(struct drm_bridge *bridge);
 
 	/**
 	 * @detect:
@@ -1375,7 +1364,7 @@ drm_bridge_get_current_state(struct drm_bridge *bridge)
 	 * drm_atomic_private_obj_init(), so we need to make sure we're
 	 * working with one before we try to use the lock.
 	 */
-	if (!bridge->funcs || !bridge->funcs->atomic_reset)
+	if (!bridge->funcs || !bridge->funcs->atomic_create_state)
 		return NULL;
 
 	drm_modeset_lock_assert_held(&bridge->base.lock);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index d75deba31d93..af075c38f4db 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -989,6 +989,12 @@ struct drm_display_info {
 	 * @amd_vsdb: AMD-specific VSDB information.
 	 */
 	struct drm_amd_vsdb_info amd_vsdb;
+
+	/**
+	 * @panel_type: Panel type from DisplayID Display Parameters
+	 * Data Block (tag 0x21). Uses DRM_MODE_PANEL_TYPE_* constants.
+	 */
+	u8 panel_type;
 };
 
 int drm_display_info_set_bus_formats(struct drm_display_info *info,
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index b2c23af628e1..bcbb92f3fe9b 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -142,6 +142,10 @@ struct sg_table *drm_gem_shmem_get_pages_sgt(struct drm_gem_shmem_object *shmem)
 void drm_gem_shmem_print_info(const struct drm_gem_shmem_object *shmem,
 			      struct drm_printer *p, unsigned int indent);
 
+int drm_gem_shmem_create_with_handle(struct drm_file *file_priv,
+				     struct drm_device *dev, size_t size,
+				     uint32_t *handle);
+
 extern const struct vm_operations_struct drm_gem_shmem_vm_ops;
 
 /*