[PATCH 3/4] drm/uapi: document the USB subconnector type

[Dmitry Baryshkov]

To properly define the USB-C DP altmode connectors, add the USB
subconnector type.

Suggested-by: Simon Ser <contact at emersion.fr>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/drm_connector.c | 1 +
 include/uapi/drm/drm_mode.h     | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index a6066e4a5e9a..9e96b038f5d0 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1050,6 +1050,7 @@ static const struct drm_prop_enum_list drm_dp_subconnector_enum_list[] = {
 	{ DRM_MODE_SUBCONNECTOR_DisplayPort, "DP"        }, /* DP */
 	{ DRM_MODE_SUBCONNECTOR_Wireless,    "Wireless"  }, /* DP */
 	{ DRM_MODE_SUBCONNECTOR_Native,	     "Native"    }, /* DP */
+	{ DRM_MODE_SUBCONNECTOR_USB,	     "USB"       }, /* DP */
 };
 
 DRM_ENUM_NAME_FN(drm_get_dp_subconnector_name,
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 92d96a2b6763..0f74918b011c 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -398,6 +398,7 @@ enum drm_mode_subconnector {
 	DRM_MODE_SUBCONNECTOR_HDMIA       = 11, /*            DP */
 	DRM_MODE_SUBCONNECTOR_Native      = 15, /*            DP */
 	DRM_MODE_SUBCONNECTOR_Wireless    = 18, /*            DP */
+	DRM_MODE_SUBCONNECTOR_USB         = 20, /*            DP */
 };
 
 #define DRM_MODE_CONNECTOR_Unknown	0
-- 
2.39.2