linux-kernel - Re: [PATCH 1/2] ASoC: codecs: wsa883x: do not set can_multi

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Date:   Mon, 5 Jun 2023 10:08:34 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        perex@...ex.cz, tiwai@...e.com, lgirdwood@...il.com,
        ckeepax@...nsource.cirrus.com, kuninori.morimoto.gx@...esas.com,
        linux-kernel@...r.kernel.org, pierre-louis.bossart@...ux.intel.com,
        alsa-devel@...a-project.org
Subject: Re: [PATCH 1/2] ASoC: codecs: wsa883x: do not set can_multi_write
 flag

On Wed, May 24, 2023 at 12:28:10PM +0100, Mark Brown wrote:
> On Tue, 23 May 2023 16:46:04 +0100, Srinivas Kandagatla wrote:
> > regmap-sdw does not support multi register writes, so there is
> > no point in setting this flag. This also leads to incorrect
> > programming of WSA codecs with regmap_multi_reg_write() call.
> > 
> > This invalid configuration should have been rejected by regmap-sdw.
> > 
> > 
> > [...]
> 
> Applied to
> 
>    https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
> 
> Thanks!
> 
> [1/2] ASoC: codecs: wsa883x: do not set can_multi_write flag
>       commit: 40ba0411074485e2cf1bf8ee0f3db27bdff88394
> [2/2] ASoC: codecs: wsa881x: do not set can_multi_write flag
>       commit: 6e7a6d4797ef521c0762914610ed682e102b9d36

These were merged for 6.5 but the corresponding sanity check for regmap
has now been included in 6.4-rc5 which consequently breaks these codecs
(similar for wcd938x-sdw):

[   11.443485] wsa883x-codec sdw:0:0217:0202:00:1: error -ENOTSUPP: regmap_init failed
[   11.443525] wsa883x-codec sdw:0:0217:0202:00:1: Probe of wsa883x-codec failed: -524
[   11.443554] wsa883x-codec: probe of sdw:0:0217:0202:00:1 failed with error -52

Is it possible to get also these fixes into 6.4 final?

Johan