Re: [bug report] 'ASoC: Intel: haswell: Power transition refactor' and PulseAudio

[Liam Girdwood <liam.r.girdwood@linux.intel.com>]

On Tue, 2020-09-01 at 13:33 +0200, Cezary Rojewski wrote:
> On 2020-08-31 11:55 PM, Christian Bundy wrote:
> > After upgrading to Linux 5.8 I discovered an audio issue on my
> > device that was introduced in
> > 8ec7d6043263ecf250b9b7c0dd8ade899487538a [0]. I used 'git bisect'
> > to identify the commit that introduced the bug and have confirmed
> > that reverting the commit resolves the problem
> > 
> > Reproduction:
> > 
> > 1. Play any audio via PulseAudio.
> > 2. Observe that the audio output is fuzzy and choppy.
> > 
> > I can use programs like mpv to play audio without PulseAudio, and
> > the audio is fine, but as soon as I open a process that uses
> > PulseAudio it will ruin the audio output for all processes
> > (including mpv) until I reboot.
> > 
> > I'm using a 2015 Chromebook Pixel ("Samus") and have confirmed this
> > problem with a friend who has the same device.
> > 
> > Is there anything I can do to help debug this instead of sending a
> > patch to revert the commit?
> > 
> 
> Hello Christian,
> 
> Thank you for report! Issue is a known one to us and has already
> been 
> addressed by:
> 
> 	[PATCH v4 00/13] ASoC: Intel: Catpt - Lynx and Wildcat point
> 	https://www.spinics.net/lists/alsa-devel/msg113762.html
> 
> waiting for final dependency to be merged (Andy's resource-API
> changes, 
> as Mark already added the SPI ones) so v5 with review changes can be 
> provided. Shouldn't be long before this gets merged. As consequence, 
> /haswell/ ceases to exist.
> 

Please also don't forget that the new BDW HW register programming flows
need to be shared as common code with the SOF BDW driver.

Thanks

Liam