[Intel-gfx] [PATCH] drm/i915: Retry DP aux_ch communications with a different clock after failure

[Daniel Vetter]

On Fri, Jul 26, 2013 at 02:40:01PM +0300, Jani Nikula wrote:
> On Sun, 21 Jul 2013, Chris Wilson <chris at chris-wilson.co.uk> wrote:
> > The w/a db makes the recommendation to both use a non-default value for
> > the initial clock and then to retry with an alternative clock for
> > Haswell with the Lakeport PCH.
> >
> > "On LPT:H, use a divider value of 63 decimal (03Fh). If there is a
> > failure, retry at least three times with 63, then retry at least three
> > times with 72 decimal (048h)."
> 
> Overall I'd prefer adding the outer repeat loop first, keeping existing
> behaviour, and only then adding the divider value changes in
> get_aux_clock_divider(). But that's in the bikeshedding dept. Either
> way,
> 
> Reviewed-by: Jani Nikula <jani.nikula at intel.com>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch