linux-kernel - Re: [PATCH] ASoC: imx-rpmsg: Support configure sysclk for codec dai

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Date:   Tue, 2 Aug 2022 14:02:09 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Shengjiu Wang <shengjiu.wang@...il.com>
Cc:     Nicolin Chen <nicoleotsuka@...il.com>,
        Shengjiu Wang <shengjiu.wang@....com>,
        Xiubo Li <Xiubo.Lee@...il.com>,
        Fabio Estevam <festevam@...il.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: imx-rpmsg: Support configure sysclk for codec dai

On Tue, Aug 02, 2022 at 08:23:37PM +0800, Shengjiu Wang wrote:
> On Tue, Aug 2, 2022 at 1:47 AM Nicolin Chen <nicoleotsuka@...il.com> wrote:
> > On Mon, Aug 1, 2022 at 5:42 AM Shengjiu Wang <shengjiu.wang@....com>
> > wrote:

> > >  struct imx_rpmsg {
> > >         struct snd_soc_dai_link dai;
> > >         struct snd_soc_card card;
> > > +       unsigned int sysclk;

> > unsigned long?

> Seems int or long are all used in the kernel.
> I am not sure which one is better?

clk_get_rate() and clk_set_rate() do use unsigned long, but on a lot of
architectures that is the same size as int so it makes little practical
difference though it would be more correct to use an unsigned long.

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