drm: Add HDR panel metadata property

HDR_PANEL_METADATA is used to indicate HDR capacity of sink device.

Change-Id: I598a7bb5634f14b57f94135fd3be6b0ad2075116
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>

drivers/gpu/drm/bridge/synopsys/dw-hdmi.c

@@ -2360,6 +2360,8 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 {
 	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
 					     connector);
+	struct hdr_static_metadata *metedata =
+			&connector->hdr_sink_metadata.hdmi_type1;
 	struct edid *edid;
 	int ret = 0;
 
@@ -2376,6 +2378,7 @@ static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
 		drm_connector_update_edid_property(connector, edid);
 		cec_notifier_set_phys_addr_from_edid(hdmi->cec_notifier, edid);
 		ret = drm_add_edid_modes(connector, edid);
+		drm_mode_connector_update_hdr_property(connector, metedata);
 		kfree(edid);
 	} else {
 		dev_dbg(hdmi->dev, "failed to get edid\n");

drivers/gpu/drm/drm_connector.c

@@ -1005,6 +1005,14 @@ int drm_connector_create_standard_properties(struct drm_device *dev)
 		return -ENOMEM;
 	dev->mode_config.hdr_output_metadata_property = prop;
 
+	prop = drm_property_create(dev,
+				   DRM_MODE_PROP_BLOB |
+				   DRM_MODE_PROP_IMMUTABLE,
+				   "HDR_PANEL_METADATA", 0);
+	if (!prop)
+		return -ENOMEM;
+	dev->mode_config.hdr_panel_metadata_property = prop;
+
 	return 0;
 }
 
@@ -1554,6 +1562,28 @@ int drm_connector_update_edid_property(struct drm_connector *connector,
 }
 EXPORT_SYMBOL(drm_connector_update_edid_property);
 
+int
+drm_mode_connector_update_hdr_property(struct drm_connector *connector,
+				       const struct hdr_static_metadata *data)
+{
+	struct drm_device *dev = connector->dev;
+	size_t size = sizeof(*data);
+	struct drm_property *property =
+			dev->mode_config.hdr_panel_metadata_property;
+	struct drm_property_blob **replace =
+		&connector->state->hdr_panel_blob_ptr;
+	int ret;
+
+	ret = drm_property_replace_global_blob(dev,
+					       replace,
+					       size,
+					       data,
+					       &connector->base,
+					       property);
+	return ret;
+}
+EXPORT_SYMBOL(drm_mode_connector_update_hdr_property);
+
 /**
  * drm_connector_set_link_status_property - Set link status property of a connector
  * @connector: drm connector

drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c

@@ -836,6 +836,9 @@ dw_hdmi_rockchip_attach_properties(struct drm_connector *connector,
 	prop = connector->dev->mode_config.hdr_output_metadata_property;
 	if (version >= 0x211a)
 		drm_object_attach_property(&connector->base, prop, 0);
+
+	prop = connector->dev->mode_config.hdr_panel_metadata_property;
+	drm_object_attach_property(&connector->base, prop, 0);
 }
 
 static void

include/drm/drm_connector.h

@@ -466,6 +466,8 @@ struct drm_connector_state {
 	 * DRM blob property for HDR output metadata
 	 */
 	struct drm_property_blob *hdr_output_metadata;
+
+	struct drm_property_blob *hdr_panel_blob_ptr;
 };
 
 /**
@@ -1213,6 +1215,9 @@ int drm_connector_set_path_property(struct drm_connector *connector,
 int drm_connector_set_tile_property(struct drm_connector *connector);
 int drm_connector_update_edid_property(struct drm_connector *connector,
 				       const struct edid *edid);
+int
+drm_mode_connector_update_hdr_property(struct drm_connector *connector,
+				       const struct hdr_static_metadata *data);
 void drm_connector_set_link_status_property(struct drm_connector *connector,
 					    uint64_t link_status);
 int drm_connector_init_panel_orientation_property(

include/drm/drm_mode_config.h

@@ -824,6 +824,8 @@ struct drm_mode_config {
 	 */
 	struct drm_property *hdr_output_metadata_property;
 
+	struct drm_property *hdr_panel_metadata_property;
+
 	/* dumb ioctl parameters */
 	uint32_t preferred_depth, prefer_shadow;