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drm/display: bridge_connector: Use HDMI color format for HDMI conns

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For bridge connectors which contain an HDMI bridge at some stage, the
HDMI state helpers' format selection logic should be involved.

Add an implementation for the drm_bridge_funcs color_format function,
which translates from the HDMI state's output format to a connector
format for bridge connectors involving an HDMI bridge, but return the
connector state's color_format member unchanged otherwise.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Link: https://patch.msgid.link/20260609-color-format-v17-5-35739b5782cc@collabora.com
Signed-off-by: Daniel Stone <daniels@collabora.com>
This commit is contained in:
Nicolas Frattaroli 2026-06-09 14:43:52 +02:00 committed by Daniel Stone
parent c761e89065
commit 9743ab2c18
1 changed files with 24 additions and 0 deletions
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24
drivers/gpu/drm/display/drm_bridge_connector.c
View File

@ -283,6 +283,29 @@ drm_bridge_connector_create_state(struct drm_connector *connector)
return conn_state;
}
static enum drm_connector_color_format
drm_bridge_connector_color_format(const struct drm_connector_state *conn_state)
{
struct drm_bridge_connector *bridge_connector =
to_drm_bridge_connector(conn_state->connector);
if (bridge_connector->bridge_hdmi) {
switch (conn_state->hdmi.output_format) {
default:
case DRM_OUTPUT_COLOR_FORMAT_RGB444:
return DRM_CONNECTOR_COLOR_FORMAT_RGB444;
case DRM_OUTPUT_COLOR_FORMAT_YCBCR444:
return DRM_CONNECTOR_COLOR_FORMAT_YCBCR444;
case DRM_OUTPUT_COLOR_FORMAT_YCBCR422:
return DRM_CONNECTOR_COLOR_FORMAT_YCBCR422;
case DRM_OUTPUT_COLOR_FORMAT_YCBCR420:
return DRM_CONNECTOR_COLOR_FORMAT_YCBCR420;
}
}
return conn_state->color_format;
}
static const struct drm_connector_funcs drm_bridge_connector_funcs = {
.detect = drm_bridge_connector_detect,
.force = drm_bridge_connector_force,
@ -292,6 +315,7 @@ static const struct drm_connector_funcs drm_bridge_connector_funcs = {
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
.debugfs_init = drm_bridge_connector_debugfs_init,
.oob_hotplug_event = drm_bridge_connector_oob_hotplug_event,
.color_format = drm_bridge_connector_color_format,
};
/* -----------------------------------------------------------------------------