Re: [Intel-gfx] [PATCHv3] drm/i915/dp: wait on timeout before retry

2022-07-04 Thread Shankar, Uma
> -Original Message- > From: Nikula, Jani > Sent: Friday, July 1, 2022 4:45 PM > To: Murthy, Arun R ; intel-gfx@lists.freedesktop.org > Cc: ville.syrj...@linux.intel.com; Zanoni, Paulo R ; > tprev...@gmail.com; Shankar, Uma ; Murthy, Arun R > > Subject: Re: [PATCHv3] drm/i915/dp: wait

Re: [Intel-gfx] [PATCHv3] drm/i915/dp: wait on timeout before retry

2022-07-04 Thread Shankar, Uma
> -Original Message- > From: Murthy, Arun R > Sent: Monday, July 4, 2022 11:07 AM > To: Shankar, Uma ; Nikula, Jani > ; > intel-gfx@lists.freedesktop.org > Cc: ville.syrj...@linux.intel.com; Zanoni, Paulo R ; > tprev...@gmail.com > Subject: RE: [PATCHv3] drm/i915/dp: wait on timeout

Re: [Intel-gfx] [PATCHv3] drm/i915/dp: wait on timeout before retry

2022-07-04 Thread Murthy, Arun R
> > -Original Message- > > From: Nikula, Jani > > Sent: Friday, July 1, 2022 4:45 PM > > To: Murthy, Arun R ; > > intel-gfx@lists.freedesktop.org > > Cc: ville.syrj...@linux.intel.com; Zanoni, Paulo R > > ; tprev...@gmail.com; Shankar, Uma > > ; Murthy, Arun R > > Subject: Re: [PATCHv3]

Re: [Intel-gfx] [PATCHv3] drm/i915/dp: wait on timeout before retry

2022-07-01 Thread Jani Nikula
On Fri, 01 Jul 2022, Arun R Murthy wrote: > On linktraining error/timeout before retry need to wait for 400usec as > per the DP CTS spec1.2 > > The patch with commit 74ebf294a1dd ("drm/i915: Add a delay in Displayport > AUX transactions for compliance testing") > removes this delay mentioning the

[Intel-gfx] [PATCHv3] drm/i915/dp: wait on timeout before retry

2022-07-01 Thread Arun R Murthy
On linktraining error/timeout before retry need to wait for 400usec as per the DP CTS spec1.2 The patch with commit 74ebf294a1dd ("drm/i915: Add a delay in Displayport AUX transactions for compliance testing") removes this delay mentioning the hardware already meets this requirement, but as per