[Intel-gfx] [PATCH v5 2/2] drm/i915: Check DP no aux transaction bit on link training

Mika Kahola mika.kahola at intel.com
Tue Jan 5 03:45:30 PST 2016


On Mon, 2016-01-04 at 18:27 +0100, Thierry Reding wrote:
> On Tue, Dec 22, 2015 at 04:53:41PM +0100, Lukas Wunner wrote:
> > Hi Mika,
> > 
> > On Mon, Dec 21, 2015 at 01:39:15PM +0200, Mika Kahola wrote:
> > > Check if no AUX transactions are required on DP link training.
> > > If this bit is set, we can reuse the known good drive current
> > > and pre-emphasis level from the last "full" link training.
> 
> The commit message here isn't entirely accurate. You still need AUX
> transactions to configure the link according to the values obtained
> from the last full training sequence.
> 
> Thierry

Thanks Thierry! I need to rephrase the commit message.

Cheers,
Mika



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