Re: [Intel-gfx] [PATCH v2] drm/i915/edp: Read link status after exit link training

2017-05-03 Thread Lee, Shawn C
On 28/04/2017 10:58, Lee, Shawn C wrote: >> From: "Lee, Shawn C" >> >> Display driver read DPCD register 0x202, 0x203 and 0x204 to identify >> eDP sink status. If PSR exit is ongoing at eDP sink, and eDP source >> read these registers at the same time. Panel will report EQ & symbol >> lock not

Re: [Intel-gfx] [PATCH v2] drm/i915/edp: Read link status after exit link training

2017-04-28 Thread Tvrtko Ursulin
On 28/04/2017 10:58, Lee, Shawn C wrote: From: "Lee, Shawn C" Display driver read DPCD register 0x202, 0x203 and 0x204 to identify eDP sink status. If PSR exit is ongoing at eDP sink, and eDP source read these registers at the same time. Panel will report EQ & symbol lock not done. It will cau

[Intel-gfx] [PATCH v2] drm/i915/edp: Read link status after exit link training

2017-04-28 Thread Lee, Shawn C
From: "Lee, Shawn C" Display driver read DPCD register 0x202, 0x203 and 0x204 to identify eDP sink status. If PSR exit is ongoing at eDP sink, and eDP source read these registers at the same time. Panel will report EQ & symbol lock not done. It will cause panel display flicking. So driver have to