[PATCH v5 16/17] drm/connector: Register color format property on HDMI connectors

[Nicolas Frattaroli]

The drmm_connector_hdmi_init function can figure out what DRM color
formats are supported by a particular connector based on the supported
HDMI format bitmask that's passed in.

Use it to register the drm color format property.

Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli at collabora.com>
---
 drivers/gpu/drm/drm_connector.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index 13151d9bfb82..7c38123f99cd 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -578,6 +578,7 @@ int drmm_connector_hdmi_init(struct drm_device *dev,
 			     unsigned long supported_formats,
 			     unsigned int max_bpc)
 {
+	u32 supported_drm_formats = 0;
 	int ret;
 
 	if (!vendor || !product)
@@ -621,6 +622,18 @@ int drmm_connector_hdmi_init(struct drm_device *dev,
 	if (max_bpc > 8)
 		drm_connector_attach_hdr_output_metadata_property(connector);
 
+	if (supported_formats & BIT(HDMI_COLORSPACE_RGB))
+		supported_drm_formats |= DRM_COLOR_FORMAT_RGB444;
+	if (supported_formats & BIT(HDMI_COLORSPACE_YUV444))
+		supported_drm_formats |= DRM_COLOR_FORMAT_YCBCR444;
+	if (supported_formats & BIT(HDMI_COLORSPACE_YUV422))
+		supported_drm_formats |= DRM_COLOR_FORMAT_YCBCR422;
+	if (supported_formats & BIT(HDMI_COLORSPACE_YUV420))
+		supported_drm_formats |= DRM_COLOR_FORMAT_YCBCR420;
+
+	if (!drm_mode_create_color_format_property(connector, supported_drm_formats))
+		drm_connector_attach_color_format_property(connector);
+
 	connector->hdmi.funcs = hdmi_funcs;
 
 	return 0;

-- 
2.52.0