linux-kernel - Re: [PATCH] ASoC: atmel: add COMPILE_TEST for SND_ATMEL_SOC

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Message-ID: <CAMuHMdUyo-sFzo3CA9WwycZFp=pVYLJeJfEWRT48EVhSZGL3rw@mail.gmail.com>
Date:   Wed, 13 Oct 2021 10:40:37 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Codrin Ciubotariu <Codrin.Ciubotariu@...rochip.com>
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        ALSA Development Mailing List <alsa-devel@...a-project.org>
Subject: Re: [PATCH] ASoC: atmel: add COMPILE_TEST for SND_ATMEL_SOC_PDC

Hi Codrin,

On Wed, Oct 13, 2021 at 10:15 AM <Codrin.Ciubotariu@...rochip.com> wrote:
> On 03.10.2021 06:03, Randy Dunlap wrote:
> > Geert pointed out that since sound/soc has the soc_dummy_driver for
> > NO_DMA platforms, it is possible (desirable) to have drivers that
> > depend on HAS_DMA to alternately depend on COMPILE_TEST.
> >
> > This means that SND_ATMEL_SOC_PDC can depend on HAS_DMA || COMPIE_TEST.
> >
> > Fixes: 6c5c659dfe3f ("ASoC: atmel: ATMEL drivers don't need HAS_DMA")
> > Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> > Suggested-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> > Cc: Liam Girdwood <lgirdwood@...il.com>
> > Cc: Mark Brown <broonie@...nel.org>
> > Cc: alsa-devel@...a-project.org
> > Cc: Codrin Ciubotariu <codrin.ciubotariu@...rochip.com>
> > ---
> >   sound/soc/atmel/Kconfig |    1 +
> >   1 file changed, 1 insertion(+)
> >
> > --- linux-next-20211001.orig/sound/soc/atmel/Kconfig
> > +++ linux-next-20211001/sound/soc/atmel/Kconfig
> > @@ -11,6 +11,7 @@ if SND_ATMEL_SOC
> >
> >   config SND_ATMEL_SOC_PDC
> >          bool
> > +       depends on HAS_DMA || COMPILE_TEST
>
> SND_ATMEL_SOC_PDC compiles fine without HAS_DMA, so I don't understand
> the need for this...

Does it work without DMA support?
If not, it doesn't make much sense to offer this option to the user, unless
the user is compile-testing.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds