Quoting Kuogee Hsieh (2022-06-16 10:09:20) > diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.h b/drivers/gpu/drm/msm/dp/dp_ctrl.h > index 0745fde..9a39b00 100644 > --- a/drivers/gpu/drm/msm/dp/dp_ctrl.h > +++ b/drivers/gpu/drm/msm/dp/dp_ctrl.h > @@ -21,7 +21,8 @@ struct dp_ctrl { > }; > > int dp_ctrl_on_link(struct dp_ctrl *dp_ctrl); > -int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl); > +int dp_ctrl_on_stream(struct dp_ctrl *dp_ctrl, bool force_link_train); > +int dp_ctrl_on_stream_phy_test_report(struct dp_ctrl *dp_ctrl); Instead of declaring it here how about forward declaring it in the C file and making it static? > int dp_ctrl_off_link_stream(struct dp_ctrl *dp_ctrl); > int dp_ctrl_off_link(struct dp_ctrl *dp_ctrl); > int dp_ctrl_off(struct dp_ctrl *dp_ctrl);