Re: [Intel-gfx] [RFC] drm/i915/dp: PPS registers doesn't require AUX power

2020-11-26 Thread Ville Syrjälä
On Thu, Nov 26, 2020 at 03:09:50PM +0530, Anshuman Gupta wrote: > On 2020-11-25 at 18:24:44 +0200, Imre Deak wrote: > > +Ville. > Hi Ville , > Let me provide you some context over the issue which requires your input. > TGL on chorome OS has observed some display glitches when brightness is being

Re: [Intel-gfx] [RFC] drm/i915/dp: PPS registers doesn't require AUX power

2020-11-26 Thread Anshuman Gupta
On 2020-11-25 at 18:24:44 +0200, Imre Deak wrote: > +Ville. Hi Ville , Let me provide you some context over the issue which requires your input. TGL on chorome OS has observed some display glitches when brightness is being updated at very fast rate. This has surfaced out two issue. 1. Getting the

Re: [Intel-gfx] [RFC] drm/i915/dp: PPS registers doesn't require AUX power

2020-11-25 Thread Imre Deak
+Ville. On Wed, Nov 25, 2020 at 01:16:27PM +0530, Anshuman Gupta wrote: > On 2020-11-24 at 18:44:06 +0200, Imre Deak wrote: > > On Tue, Nov 24, 2020 at 03:28:47PM +0530, Anshuman Gupta wrote: > > > Platforms with South Display Engine on PCH, doesn't > > > require to get/put the AUX power domain

Re: [Intel-gfx] [RFC] drm/i915/dp: PPS registers doesn't require AUX power

2020-11-25 Thread Anshuman Gupta
On 2020-11-24 at 18:44:06 +0200, Imre Deak wrote: > On Tue, Nov 24, 2020 at 03:28:47PM +0530, Anshuman Gupta wrote: > > Platforms with South Display Engine on PCH, doesn't > > require to get/put the AUX power domain in order to > > access PPS register because PPS registers are always on > > with

Re: [Intel-gfx] [RFC] drm/i915/dp: PPS registers doesn't require AUX power

2020-11-24 Thread Imre Deak
On Tue, Nov 24, 2020 at 03:28:47PM +0530, Anshuman Gupta wrote: > Platforms with South Display Engine on PCH, doesn't > require to get/put the AUX power domain in order to > access PPS register because PPS registers are always on > with South display on PCH. > > Cc: Imre Deak > Cc: >

[Intel-gfx] [RFC] drm/i915/dp: PPS registers doesn't require AUX power

2020-11-24 Thread Anshuman Gupta
Platforms with South Display Engine on PCH, doesn't require to get/put the AUX power domain in order to access PPS register because PPS registers are always on with South display on PCH. Cc: Imre Deak Cc: Signed-off-by: Anshuman Gupta --- drivers/gpu/drm/i915/display/intel_dp.c | 13