Re: [PATCH] drm/i915: Don't overwrite (e)DP PLL selection on SKL

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On Fri, May 15, 2015 at 12:19:12PM +0100, Damien Lespiau wrote:
> On Fri, May 15, 2015 at 01:34:29PM +0300, Ander Conselvan de Oliveira wrote:
> > In the following commit, the place where the contents of dpll_hw_state
> > in crtc_state where zeroed was changed. Prior to that commit, it
> > happened when the new state was allocated, but now that happens just
> > before the call the .crtc_compute_clock() hook. The DP code for SKL,
> > however, sets up the (private) PLL in the encoder compute config
> > function that has already run by the time that memset() is reached,
> > causing the previous value to be lost.
> > 
> > This patch fixes the issue by moving the memset() down the call chain,
> > so that it is only called if the values in dpll_hw_state are going to be
> > updated.
> > 
> > commit 4978cc93d9ac240b435ce60431aef24239b4c270
> > Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>
> > Date:   Tue Apr 21 17:13:21 2015 +0300
> > 
> >     drm/i915: Preserve shared DPLL information in new pipe_config
> > 
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90462
> 
> Looks good to me:
> 
> Reviewed-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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