linux-kernel - Re: [PATCH v3 3/7] ASoC: sun4i-spdif: Add TX fifo bit flush quirks

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Message-ID: <CAJiuCce8UNbA+Ljkbw92ZJu3Ni6N9ciFKGsLtBYJ0_J8E1Gi2g@mail.gmail.com>
Date:   Sun, 26 May 2019 21:00:30 +0200
From:   Clément Péron <peron.clem@...il.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Chen-Yu Tsai <wens@...e.org>, Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 3/7] ASoC: sun4i-spdif: Add TX fifo bit flush quirks

Hi Maxime,

On Sun, 26 May 2019 at 20:24, Maxime Ripard <maxime.ripard@...tlin.com> wrote:
>
> On Sat, May 25, 2019 at 06:23:19PM +0200, Clément Péron wrote:
> > Allwinner H6 has a different bit to flush the TX FIFO.
> >
> > Add a quirks to prepare introduction of H6 SoC.
> >
> > Signed-off-by: Clément Péron <peron.clem@...il.com>
> > ---
> >  sound/soc/sunxi/sun4i-spdif.c | 11 ++++++++++-
> >  1 file changed, 10 insertions(+), 1 deletion(-)
> >
> > diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c
> > index b6c66a62e915..8317bbee0712 100644
> > --- a/sound/soc/sunxi/sun4i-spdif.c
> > +++ b/sound/soc/sunxi/sun4i-spdif.c
> > @@ -166,10 +166,12 @@
> >   *
> >   * @reg_dac_tx_data: TX FIFO offset for DMA config.
> >   * @has_reset: SoC needs reset deasserted.
> > + * @reg_fctl_ftx: TX FIFO flush bitmask.
>
> It's a bit weird to use the same prefix for a register offset
> (reg_dac_tx_data) and a value (reg_fctl_ftx).

I just look at sun4i-codec and they use a regmap, But I think it's a
bit overkill no?

What do you think about val_fctl_ftx ?

Thanks for your review,
Clément

>
> Maxime
>
> --
> Maxime Ripard, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com