[PATCH 1/2] drm/connector: Document the optional margin props in the HDMI section

[Boris Brezillon]

HDMI connectors can optionally be attached margin props. Let's
document them.

Signed-off-by: Boris Brezillon <boris.brezillon at collabora.com>
---
 drivers/gpu/drm/drm_connector.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 2355124849db..95dfb322b14e 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1116,6 +1116,23 @@ EXPORT_SYMBOL(drm_mode_create_dvi_i_properties);
  *	Drivers can set up this property by calling
  *	drm_connector_attach_content_type_property(). Decoding to
  *	infoframe values is done through drm_hdmi_avi_infoframe_content_type().
+ *
+ * TV margins (optional):
+ *	Defines invisible area of a screen so that the CRTC driver can possibly
+ *	scale the output image and move it to make it entirely visible. All
+ *	margins are defined in pixels and the valid range is 0 - 100.
+ *
+ *	left margin:
+ *		Left margin
+ *
+ *	right margin:
+ *		Left margin
+ *
+ *	top margin:
+ *		Top margin
+ *
+ *	bottom margin:
+ *		Bottom margin
  */
 
 /**
-- 
2.20.1