Re: [Intel-gfx] [PATCH] drm/i915/glk: Enable cold boot for GLK DSI

2017-06-08 Thread Jani Nikula
On Sun, 04 Jun 2017, Madhav Chauhan wrote: > As per BSEPC, if device ready bit is '0' in enable IO sequence > then its a cold boot/reset scenario eg: S3/S4 resume. In these > conditions we need to program certain registers and prepare port > from the middle of DSI enable sequence otherwise feature

[Intel-gfx] [PATCH] drm/i915/glk: Enable cold boot for GLK DSI

2017-06-04 Thread Madhav Chauhan
As per BSEPC, if device ready bit is '0' in enable IO sequence then its a cold boot/reset scenario eg: S3/S4 resume. In these conditions we need to program certain registers and prepare port from the middle of DSI enable sequence otherwise feature like S3/S4 doesn't work. V2: Do not assume that on