Commit be318d01 authored by Rohit Visavalia's avatar Rohit Visavalia Committed by Tomi Valkeinen
Browse files

drm: xlnx: dp: Reset DisplayPort IP 



Assert DisplayPort reset signal before deasserting,
it is to clear out any registers programmed before booting kernel.

Signed-off-by: default avatarRohit Visavalia <rohit.visavalia@amd.com>
Reviewed-by: default avatarVishal Sagar <vishal.sagar@amd.com>
Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240216124043.1226713-1-rohit.visavalia@amd.com
parent bf0390e2

drivers/gpu/drm/xlnx/zynqmp_dp.c

+4 −0
Original line number Diff line number Diff line
@@ -1714,6 +1714,10 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub) 
		goto err_free;

	}



	ret = zynqmp_dp_reset(dp, true);

	if (ret < 0)

		return ret;



	ret = zynqmp_dp_reset(dp, false);

	if (ret < 0)

		goto err_free;