Re: [PATCH v4] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-06 Thread Lyude Paul
On Fri, 2018-04-06 at 12:48 -0700, Laura Abbott wrote: > On 04/06/2018 11:52 AM, 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

Re: [PATCH v4] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-06 Thread Laura Abbott
On 04/06/2018 11:52 AM, 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 was

Re: [PATCH v4] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-06 Thread Ville Syrjälä
On Fri, Apr 06, 2018 at 12:28:30PM -0700, Dhinakaran Pandiyan wrote: > > > > On Fri, 2018-04-06 at 14:52 -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.

Re: [PATCH v4] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-06 Thread Dhinakaran Pandiyan
On Fri, 2018-04-06 at 14:52 -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

[PATCH v4] drm/i915/dp: Send DPCD ON for MST before phy_up

2018-04-06 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