Re: Backport of CDCLK/Haswell patches

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On 10/08/2014, 10:09 AM, David Henningsson wrote:
> Hi stable maintainers,
> 
> These two patches: c149dcb5c60bfea8871f16dfcc0690255eeb825f
> drm/i915: provide interface for audio driver to query cdclk
> and
> e4d9e513dedb5ac4e166c1053314fa935ddecc8c
> ALSA: hda - restore BCLK M/N value as per CDCLK for HSW/BDW display HDA
> controller
> 
> ...never seem to have made it into 3.12+ stable kernels. They fix an
> issue where playback rate over Haswell HDMI audio can be faster than
> normal.
> 
> Now, the latter of these two patches requires a restructure of moving
> things from hda_intel.c to hda_priv.h, which looked tedious and
> potentially error-prone to backport in itself, so instead I rewrote the
> function slightly, see attachment.
> 
> Do you think this is a reasonable approach?

I seem not to find out a way to apply those to 3.12 cleanly :/. Any
ideas/help appreciated.

> Note: It is possible that the patches in its current form do not apply
> cleanly if the stable kernel is missing another stable patch
> (a07187c992be945ab561b370cbb49cfd72064c3c
> ALSA: hda - restore BCLK M/N values when resuming HSW/BDW display
> controller), which is now superseded with this patch.

thanks,
-- 
js
suse labs
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