Commit a68d2437 authored Dec 07, 2015 by Mykola Lysenko Committed by Daniel Vetter Dec 15, 2015

drm/dp/mst: reply with ACK for UP reqs

Currently we reply with NACK to UP requests which might
confuse receivers. We haven't seen any actual issues with
this but should still respond to UP requests correctly.

Signed-off-by: Mykola Lysenko <Mykola.Lysenko@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1449514552-10236-2-git-send-email-harry.wentland@amd.com

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent d55f5320

drivers/gpu/drm/drm_dp_mst_topology.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1823,7 +1823,7 @@ static int drm_dp_encode_up_ack_reply(struct drm_dp_sideband_msg_tx *msg, u8 req
		{
		struct drm_dp_sideband_msg_reply_body reply;

		reply.reply_type = 1;
		reply.reply_type = 0;
		reply.req_type = req_type;
		drm_dp_encode_sideband_reply(&reply, msg);
		return 0;