[PATCH] drm: Fix docbook warnings in hdr metadata helper structures

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Fixes the following warnings:
./include/drm/drm_mode_config.h:841: warning: Incorrect use of
kernel-doc format:          * hdr_output_metadata_property: Connector
property containing hdr
./include/drm/drm_mode_config.h:918: warning: Function parameter or member 'hdr_output_metadata_property' not described in 'drm_mode_config'
./include/drm/drm_connector.h:1251: warning: Function parameter or member 'hdr_output_metadata' not described in 'drm_connector'
./include/drm/drm_connector.h:1251: warning: Function parameter or member 'hdr_sink_metadata' not described in 'drm_connector'

Also adds some property documentation for HDR Metadata Connector
Property in connector property create function.

Cc: Shashank Sharma <shashank.sharma@xxxxxxxxx>
Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
Cc: Sean Paul <sean@xxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Cc: "Ville Syrjälä" <ville.syrjala@xxxxxxxxxxxxxxx>
Cc: Hans Verkuil <hansverk@xxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: linux-fbdev@xxxxxxxxxxxxxxx
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
 drivers/gpu/drm/drm_connector.c | 8 ++++++++
 include/drm/drm_connector.h     | 3 ++-
 include/drm/drm_mode_config.h   | 2 +-
 include/linux/hdmi.h            | 1 +
 4 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index c9ac8b9..702307c 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1003,6 +1003,14 @@ int drm_display_info_set_bus_formats(struct drm_display_info *info,
  *	can also expose this property to external outputs, in which case they
  *	must support "None", which should be the default (since external screens
  *	have a built-in scaler).
+ *
+ * HDR_OUTPUT_METADATA:
+ *	Connector property to enable userspace to send HDR Metadata to driver.
+ *	This metadata is based on the composition and blending policies decided
+ *	by user, taking into account the hardware and sink capabilties.
+ *	The driver gets this metadata and creates a Dynamic Range and Mastering
+ *	Infoframe (DRM) which is then sent to sink. This notifies the sink of
+ *	the upcoming frame's Color Encoding and Luminance parameters.
  */
 
 int drm_connector_create_standard_properties(struct drm_device *dev)
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index f8f4003..f226ef0 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1244,8 +1244,9 @@ struct drm_connector {
 	 */
 	struct llist_node free_node;
 
-	/* HDR metdata */
+	/** @hdr_output_metadata: HDR Metadata to be sent to sink */
 	struct hdr_output_metadata hdr_output_metadata;
+	/** @hdr_sink_metadata: HDR Metadata Information read from sink */
 	struct hdr_sink_metadata hdr_sink_metadata;
 };
 
diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h
index 4f88cc9..0b180e0 100644
--- a/include/drm/drm_mode_config.h
+++ b/include/drm/drm_mode_config.h
@@ -837,7 +837,7 @@ struct drm_mode_config {
 	struct drm_property *writeback_out_fence_ptr_property;
 
 	/**
-	 * hdr_output_metadata_property: Connector property containing hdr
+	 * @hdr_output_metadata_property: Connector property containing hdr
 	 * metatda. This will be provided by userspace compositors based
 	 * on HDR content
 	 */
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index ee55ba5..ea5858e 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -398,6 +398,7 @@ ssize_t hdmi_vendor_infoframe_pack_only(const struct hdmi_vendor_infoframe *fram
  * @spd: spd infoframe
  * @vendor: union of all vendor infoframes
  * @audio: audio infoframe
+ * @drm: DRM infoframe
  *
  * This is used by the generic pack function. This works since all infoframes
  * have the same header which also indicates which type of infoframe should be
-- 
1.9.1

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