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authorBen Skeggs <bskeggs@redhat.com>2014-06-16 15:45:01 +1000
committerBen Skeggs <bskeggs@redhat.com>2014-06-17 14:41:41 +1000
commitcf7c5d67e192e0bdc9e4372392006c224618ca0c (patch)
tree3ffc77a01a9ea0d6e733636bd7a857a77654316f /drivers/gpu/drm/nouveau
parentdrm/nouveau/kms: reference vblank for crtc during pageflip. (diff)
downloadlinux-dev-cf7c5d67e192e0bdc9e4372392006c224618ca0c.tar.xz
linux-dev-cf7c5d67e192e0bdc9e4372392006c224618ca0c.zip
drm/nouveau/disp/dp: don't touch link config after success
I don't know of anything this fixes, but it seems wrong anyway. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau')
-rw-r--r--drivers/gpu/drm/nouveau/core/engine/disp/dport.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
index 39562d48101d..5a5b59b21130 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dport.c
@@ -241,7 +241,9 @@ dp_link_train_eq(struct dp_state *dp)
dp_set_training_pattern(dp, 2);
do {
- if (dp_link_train_update(dp, dp->pc2, 400))
+ if ((tries &&
+ dp_link_train_commit(dp, dp->pc2)) ||
+ dp_link_train_update(dp, dp->pc2, 400))
break;
eq_done = !!(dp->stat[2] & DPCD_LS04_INTERLANE_ALIGN_DONE);
@@ -253,9 +255,6 @@ dp_link_train_eq(struct dp_state *dp)
!(lane & DPCD_LS02_LANE0_SYMBOL_LOCKED))
eq_done = false;
}
-
- if (dp_link_train_commit(dp, dp->pc2))
- break;
} while (!eq_done && cr_done && ++tries <= 5);
return eq_done ? 0 : -1;