Commit bfcc3d8f authored by Dmitry Baryshkov's avatar Dmitry Baryshkov
Browse files

drm/msm/dp: support setting the DP subconnector type 



Read the downstream port info and set the subconnector type accordingly.

Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: default avatarStephen Boyd <swboyd@chromium.org>
Patchwork: https://patchwork.freedesktop.org/patch/555531/
Link: https://lore.kernel.org/r/20230903222432.2894093-1-dmitry.baryshkov@linaro.org
parent 6398e4d4

drivers/gpu/drm/msm/dp/dp_display.c

+8 −1
Original line number Diff line number Diff line
@@ -364,8 +364,12 @@ static int dp_display_send_hpd_notification(struct dp_display_private *dp, 
	}



	/* reset video pattern flag on disconnect */

	if (!hpd)

	if (!hpd) {

		dp->panel->video_test = false;

		drm_dp_set_subconnector_property(dp->dp_display.connector,

						 connector_status_disconnected,

						 dp->panel->dpcd, dp->panel->downstream_ports);

	}



	dp->dp_display.is_connected = hpd;
@@ -393,6 +397,9 @@ static int dp_display_process_hpd_high(struct dp_display_private *dp) 


	dp_link_process_request(dp->link);



	drm_dp_set_subconnector_property(dp->dp_display.connector, connector_status_connected,

					 dp->panel->dpcd, dp->panel->downstream_ports);



	edid = dp->panel->edid;



	dp->dp_display.psr_supported = dp->panel->psr_cap.version && psr_enabled;

drivers/gpu/drm/msm/dp/dp_panel.c

+5 −0
Original line number Diff line number Diff line
@@ -161,6 +161,11 @@ int dp_panel_read_sink_caps(struct dp_panel *dp_panel, 
		}

	}



	rc = drm_dp_read_downstream_info(panel->aux, dp_panel->dpcd,

					 dp_panel->downstream_ports);

	if (rc)

		return rc;



	kfree(dp_panel->edid);

	dp_panel->edid = NULL;

drivers/gpu/drm/msm/dp/dp_panel.h

+1 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ struct dp_panel_psr { 
struct dp_panel {

	/* dpcd raw data */

	u8 dpcd[DP_RECEIVER_CAP_SIZE];

	u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];



	struct dp_link_info link_info;

	struct drm_dp_desc desc;