- ret = drm_dp_dpcd_write(aconnector->dsc_aux, DP_DSC_ENABLE, &enable_dsc, 1);
- DC_LOG_DC("Send DSC %s to MST RX\n", enable_dsc ? "enable" : "disable");
+ port = aconnector->port;
+
+ if (enable) {
+ if (port->passthrough_aux) {
+ ret = drm_dp_dpcd_write(port->passthrough_aux,
+ DP_DSC_ENABLE,
+ &enable_passthrough, 1);
+ DC_LOG_DC("Sent DSC pass-through enable to virtual dpcd port, ret = %u\n",
+ ret);
+ }
+
+ ret = drm_dp_dpcd_write(aconnector->dsc_aux,
+ DP_DSC_ENABLE, &enable_dsc, 1);
+ DC_LOG_DC("Sent DSC decoding enable to %s port, ret = %u\n",
+ (port->passthrough_aux) ? "remote RX" :
+ "virtual dpcd",
+ ret);
+ } else {
+ ret = drm_dp_dpcd_write(aconnector->dsc_aux,
+ DP_DSC_ENABLE, &enable_dsc, 1);
+ DC_LOG_DC("Sent DSC decoding disable to %s port, ret = %u\n",
+ (port->passthrough_aux) ? "remote RX" :
+ "virtual dpcd",
+ ret);
+
+ if (port->passthrough_aux) {
+ ret = drm_dp_dpcd_write(port->passthrough_aux,
+ DP_DSC_ENABLE,
+ &enable_passthrough, 1);
+ DC_LOG_DC("Sent DSC pass-through disable to virtual dpcd port, ret = %u\n",
+ ret);
+ }
+ }