Commit 6860dc82 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/dp: account for channel coding overhead in link training 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent c674844b

drivers/gpu/drm/nouveau/nouveau_dp.c

+3 −0
Original line number Diff line number Diff line
@@ -422,6 +422,9 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate, 
	dp.auxch = auxch->drive;

	dp.dpcd = nv_encoder->dp.dpcd;



	/* adjust required bandwidth for 8B/10B coding overhead */

	datarate = (datarate / 8) * 10;



	/* some sinks toggle hotplug in response to some of the actions

	 * we take during link training (DP_SET_POWER is one), we need

	 * to ignore them for the moment to avoid races.