[PATCH v4 4/7] drm/bridge-connector: Pass supported colorspaces to the HDMI helpers

["Jan Claußen" <jan.claussen10@web.de>]

Add a supported_colorspaces field to struct drm_bridge so HDMI bridges
can declare the colorimetries they support, and pass it on to
drmm_connector_hdmi_init() so the colorspace property gets created.

Suggested-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Jan Claußen <jan.claussen10@web.de>
---
 drivers/gpu/drm/display/drm_bridge_connector.c | 4 ++++
 include/drm/drm_bridge.h                       | 7 +++++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c
index 81f3e26f6fdf..40f50304c46f 100644
--- a/drivers/gpu/drm/display/drm_bridge_connector.c
+++ b/drivers/gpu/drm/display/drm_bridge_connector.c
@@ -1042,6 +1042,10 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
 			bridge_connector->hdmi_funcs.supported_formats =
 				bridge_connector->bridge_hdmi->supported_formats;
 
+		if (bridge_connector->bridge_hdmi->supported_colorspaces)
+			bridge_connector->hdmi_funcs.supported_colorspaces =
+				bridge_connector->bridge_hdmi->supported_colorspaces;
+
 		if (!connector->ycbcr_420_allowed)
 			bridge_connector->hdmi_funcs.supported_formats &=
 				~BIT(DRM_OUTPUT_COLOR_FORMAT_YCBCR420);
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 1981d24a700d..b46d34040024 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -1129,6 +1129,13 @@ struct drm_bridge {
 	 */
 	unsigned int supported_formats;
 
+	/**
+	 * @supported_colorspaces: Bitmask of &enum drm_colorspace listing
+	 * supported color spaces. This is only relevant if @DRM_BRIDGE_OP_HDMI
+	 * is set.
+	 */
+	unsigned int supported_colorspaces;
+
 	/**
 	 * @max_tmds_char_rate: Maximum TMDS character rate, in Hz, the HDMI
 	 * bridge supports. A value of 0 means the core should use the default
-- 
2.56.0