linux-kernel - Re: [PATCH V3 2/2] ASoC: codecs: Add aw88166 amplifier driver

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Message-ID: <85859be0-95f7-48f2-bc51-488531529075@web.de>
Date: Wed, 12 Mar 2025 15:00:36 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Weidong Wang <wangweidong.a@...nic.com>, linux-sound@...r.kernel.org,
 devicetree@...r.kernel.org
Cc: LKML <linux-kernel@...r.kernel.org>, anish kumar
 <yesanishhere@...il.com>, Ben Yi <yijiangtao@...nic.com>,
 Binbin Zhou <zhoubinbin@...ngson.cn>, Conor Dooley <conor+dt@...nel.org>,
 Herve Codina <herve.codina@...tlin.com>,
 Igor Prusov <ivprusov@...utedevices.com>, Jack Yu <jack.yu@...ltek.com>,
 Jaroslav Kysela <perex@...ex.cz>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Liam Girdwood <lgirdwood@...il.com>,
 Luca Ceresoli <luca.ceresoli@...tlin.com>, Mark Brown <broonie@...nel.org>,
 Masahiro Yamada <masahiroy@...nel.org>,
 Neil Armstrong <neil.armstrong@...aro.org>, Nuno Sá
 <nuno.sa@...log.com>, Prasad Kumpatla <quic_pkumpatl@...cinc.com>,
 Richard Fitzgerald <rf@...nsource.cirrus.com>, Rob Herring
 <robh@...nel.org>, Takashi Iwai <tiwai@...e.com>
Subject: Re: [PATCH V3 2/2] ASoC: codecs: Add aw88166 amplifier driver

…
> The driver is for amplifiers aw88166 of Awinic Technology
…

You may occasionally put more than 57 characters into text lines
of such a change description.


See also:
https://web.git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.14-rc6#n94


…
> +++ b/sound/soc/codecs/aw88166.c
> @@ -0,0 +1,1933 @@
…
> +static void aw88166_startup_work(struct work_struct *work)
> +{
…
> +	mutex_lock(&aw88166->lock);
> +	aw88166_start_pa(aw88166);
> +	mutex_unlock(&aw88166->lock);
> +}
…

Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&aw88166->lock);”?
https://elixir.bootlin.com/linux/v6.14-rc6/source/include/linux/mutex.h#L201

Regards,
Markus