linux-kernel - Re: [PATCH v2] ALSA: hda: intel-dsp-cfg: Use AVS driver on SKL/KBL/APL Chromebooks

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Message-ID: <754f3c29-cfac-243c-d280-0cc84ed36ccb@intel.com>
Date:   Mon, 30 Oct 2023 20:23:44 +0100
From:   Cezary Rojewski <cezary.rojewski@...el.com>
To:     Brady Norander <bradynorander@...il.com>,
        Takashi Iwai <tiwai@...e.com>, Mark Brown <broonie@...nel.org>,
        <alsa-devel@...a-project.org>
CC:     <linux-kernel@...r.kernel.org>, Jaroslav Kysela <perex@...ex.cz>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Bard Liao <yung-chuan.liao@...ux.intel.com>,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>
Subject: Re: [PATCH v2] ALSA: hda: intel-dsp-cfg: Use AVS driver on
 SKL/KBL/APL Chromebooks

On 2023-10-30 7:58 PM, Brady Norander wrote:
> The legacy SKL driver no longer works properly on these Chromebook
> platforms. Use the new AVS driver by default instead.

Hello,

Thank you for the patch. The code looks fine but it will cause backward 
compatibility problems on driver <-> topology line which I'd like to avoid.

There's an ongoing discussion regarding 24/32 format support for HDAudio 
drivers which is currently incorrect for all Intel AudioDSP drivers. 
Until the discussion is finished I'd like to avoid switching. While the 
avs-driver deprecates the skylake-driver since v5.4, the topology file 
package is not yet part of any official distro release.

I've high hopes to finish the process by the end of November. That 
means: driver code gets updated to properly represent 24/32 format AND 
the avs-topology-xml repo [1] receives equivalent update making it a 
candidate for distro integration. I'll bump this patch once the process 
concludes.

[1]: https://github.com/thesofproject/avs-topology-xml

Czarek