drm/i915: Add max_bpc property for DP MST

Allow the user to limit the output bpc with DP MST.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190326142556.21176-4-ville.syrjala@linux.intel.com

diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
index 8796fbd6541340a3bdea45b2ec7306c2c55efa80..19d81cef2ab6f98ba5a219a0619cee0b39463b0c 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/intel_dp_mst.c
@@ -530,6 +530,7 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 
        intel_attach_force_audio_property(connector);
        intel_attach_broadcast_rgb_property(connector);
+       drm_connector_attach_max_bpc_property(connector, 6, 12);
 
        return connector;