Re: [PATCH v2] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-05 Thread Pandiyan, Dhinakaran
On Thu, 2018-04-05 at 16:36 -0400, Lyude Paul wrote: > When doing a modeset where the sink is transitioning from D3 to D0 , it > would sometimes be possible for the initial power_up_phy() to start > timing out. This would only be observed in the last action before the > sink went into D3 mode wa

Re: [PATCH v2] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-05 Thread Lyude Paul
Actually - ignore this patch, I'm going to do a v3 because i just noticed there is something very silly and broken I just introduced into the disable codepath On Thu, 2018-04-05 at 16:36 -0400, Lyude Paul wrote: > When doing a modeset where the sink is transitioning from D3 to D0 , it > would some

[PATCH v2] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-05 Thread Lyude Paul
When doing a modeset where the sink is transitioning from D3 to D0 , it would sometimes be possible for the initial power_up_phy() to start timing out. This would only be observed in the last action before the sink went into D3 mode was intel_dp_sink_dpms(DRM_MODE_DPMS_OFF). We originally thought t