drm: add dp helper to initialize remote aux channel.

[linux.git] / include / drm / drm_dp_helper.h

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 8f8f3632e697ac9be778967b8e0ec82eed24c6b2..bc04467f7c3a563ba2cf54c704a3ff9116d25d6c 100644 (file)
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1465,6 +1465,7 @@ int drm_dp_downstream_id(struct drm_dp_aux *aux, char id[6]);
 void drm_dp_downstream_debug(struct seq_file *m, const u8 dpcd[DP_RECEIVER_CAP_SIZE],
                             const u8 port_cap[4], struct drm_dp_aux *aux);
 
+void drm_dp_remote_aux_init(struct drm_dp_aux *aux);
 void drm_dp_aux_init(struct drm_dp_aux *aux);
 int drm_dp_aux_register(struct drm_dp_aux *aux);
 void drm_dp_aux_unregister(struct drm_dp_aux *aux);
@@ -1522,6 +1523,13 @@ enum drm_dp_quirk {
         * The driver should ignore SINK_COUNT during detection.
         */
        DP_DPCD_QUIRK_NO_SINK_COUNT,
+       /**
+        * @DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD:
+        *
+        * The device supports MST DSC despite not supporting Virtual DPCD.
+        * The DSC caps can be read from the physical aux instead.
+        */
+       DP_DPCD_QUIRK_DSC_WITHOUT_VIRTUAL_DPCD,
 };
 
 /**