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

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Message-ID: <20190527122857.lphlgr7dc5z4f5o3@flea>
Date:   Mon, 27 May 2019 14:28:57 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Clément Péron <peron.clem@...il.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

On Sun, May 26, 2019 at 09:00:30PM +0200, Clément Péron wrote:
> 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?

For a single value, yeah

> What do you think about val_fctl_ftx ?

Looks good, thanks!
Maxime

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

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