Commit 687d8f66 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/disp: log if DP link training fails 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 9e2b734f

drivers/gpu/drm/nouveau/core/engine/disp/dport.c

+3 −1
Original line number Diff line number Diff line
@@ -308,7 +308,7 @@ nouveau_dp_train(struct nouveau_disp *disp, const struct nouveau_dp_func *func, 
	while (*link_bw > (dp->dpcd[1] * 27000))

		link_bw++;



	while (link_bw[0]) {

	while ((ret = -EIO) && link_bw[0]) {

		/* find minimum required lane count at this link rate */

		dp->link_nr = dp->dpcd[2] & DPCD_RC02_MAX_LANE_COUNT;

		while ((dp->link_nr >> 1) * link_bw[0] > datarate)
@@ -339,6 +339,8 @@ nouveau_dp_train(struct nouveau_disp *disp, const struct nouveau_dp_func *func, 


	/* finish link training */

	dp_set_training_pattern(dp, 0);

	if (ret < 0)

		ERR("link training failed\n");



	/* execute post-train script from vbios */

	dp_link_train_fini(dp);