linux-kernel - Re: [PATCH 1/2] ASoC: codec: Remove pxa2xx-ac97.c

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Message-Id: <fd5451a1-9720-417a-915c-1ee3149426f2@app.fastmail.com>
Date: Thu, 18 Sep 2025 09:15:23 +0200
From: "Arnd Bergmann" <arnd@...db.de>
To: "Peng Fan" <peng.fan@....com>, "Daniel Mack" <daniel@...que.org>,
 "Haojian Zhuang" <haojian.zhuang@...il.com>,
 "Robert Jarzmik" <robert.jarzmik@...e.fr>,
 "Jaroslav Kysela" <perex@...ex.cz>, "Takashi Iwai" <tiwai@...e.com>,
 "Mark Brown" <broonie@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-sound@...r.kernel.org
Subject: Re: [PATCH 1/2] ASoC: codec: Remove pxa2xx-ac97.c

On Thu, Sep 18, 2025, at 07:44, Peng Fan wrote:
> With commit ce79f3a1ad5f ("ARM: pxa: prune unused device support") and
> commit 2548e6c76ebf ("ARM: pxa: pxa2xx-ac97-lib: use IRQ resource"), there
> is no 'pxa2xx-ac97' platform device created by machine level code, so this
> driver could be removed.
>
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  sound/arm/Kconfig       |  10 --
>  sound/arm/Makefile      |   3 -
>  sound/arm/pxa2xx-ac97.c | 286 ------------------------------------------------
>  3 files changed, 299 deletions(-)

I think you are right, I was sure there was still a way to use this
driver either as part of sound/soc/pxa/*, or as an alternative,
but now I don't see how.

If we do this, I think we should just merge pxa2xx-pcm-lib.c and
snd-pxa2xx-lib.c into the respective callers in the sound/soc/pxa/
driver.

Robert, can you confirm?

    Arnd