Re: [Intel-gfx] [PATCH] drm/i915/psr: Set idle frame count based on sink synchronization latency

2018-05-29 Thread Dhinakaran Pandiyan
On Tue, 2018-05-29 at 12:51 -0700, Rodrigo Vivi wrote: > On Thu, May 24, 2018 at 08:30:47PM -0700, Dhinakaran Pandiyan wrote: > > > > DPCD 2009h "Synchronization latency in sink" has bits that tell us > > the > > maximum number of frames sink can take to resynchronize to source > > timing > > when

Re: [Intel-gfx] [PATCH] drm/i915/psr: Set idle frame count based on sink synchronization latency

2018-05-29 Thread Rodrigo Vivi
On Tue, May 29, 2018 at 12:51:23PM -0700, Rodrigo Vivi wrote: > On Thu, May 24, 2018 at 08:30:47PM -0700, Dhinakaran Pandiyan wrote: > > DPCD 2009h "Synchronization latency in sink" has bits that tell us the > > maximum number of frames sink can take to resynchronize to source timing > > when exiti

Re: [Intel-gfx] [PATCH] drm/i915/psr: Set idle frame count based on sink synchronization latency

2018-05-29 Thread Rodrigo Vivi
On Thu, May 24, 2018 at 08:30:47PM -0700, Dhinakaran Pandiyan wrote: > DPCD 2009h "Synchronization latency in sink" has bits that tell us the > maximum number of frames sink can take to resynchronize to source timing > when exiting PSR. More importantly, as per eDP 1.4b, this is the "Minimum > numb

Re: [Intel-gfx] [PATCH] drm/i915/psr: Set idle frame count based on sink synchronization latency

2018-05-25 Thread Jani Nikula
On Thu, 24 May 2018, Dhinakaran Pandiyan wrote: > DPCD 2009h "Synchronization latency in sink" has bits that tell us the > maximum number of frames sink can take to resynchronize to source timing > when exiting PSR. More importantly, as per eDP 1.4b, this is the "Minimum > number of frames followi

[Intel-gfx] [PATCH] drm/i915/psr: Set idle frame count based on sink synchronization latency

2018-05-24 Thread Dhinakaran Pandiyan
DPCD 2009h "Synchronization latency in sink" has bits that tell us the maximum number of frames sink can take to resynchronize to source timing when exiting PSR. More importantly, as per eDP 1.4b, this is the "Minimum number of frames following PSR exit that the Source device needs to wait for PSR