From: zain wang <wzz@xxxxxxxxxxxxxx>
Don't run psr work during enabling bridge when you restart ui, it may make
link training fail since there is a race between them in AUX CH resource.
Signed-off-by: zain wang <wzz@xxxxxxxxxxxxxx>
Signed-off-by: Caesar Wang <wxt@xxxxxxxxxxxxxx>
Cc: Tomeu Vizoso <tomeu.vizoso@xxxxxxxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
---
BTW:
- The training issue is gone with this patch,
there are four machines have passed the 10000 cycles with S2R tests.
- Verified on ChromeOS kernelv4.4.
drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 6e0447f..4431f62 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1117,6 +1117,7 @@ static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
if (ret)
DRM_ERROR("failed to setup the panel ret = %d\n", ret);
+ dp->psr_support = false;
dp->dpms_mode = DRM_MODE_DPMS_OFF;
}
--
2.7.4
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