Messages in this thread Patch in this message | | | From | Caesar Wang <> | Subject | drm/bridge: analogix_dp: clear psr_support when disable_bridge | Date | Wed, 9 Nov 2016 11:53:34 +0800 |
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From: zain wang <wzz@rock-chips.com>
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@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com> Cc: dri-devel@lists.freedesktop.org Cc: Sean Paul <seanpaul@chromium.org>
--- 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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