linux-kernel - Re: [linux-sunxi] [PATCH v3 11/11] ASoC: sun4i-i2s: Add support for H3

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Date:   Sat, 12 Aug 2017 20:27:44 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Code Kipper <codekipper@...il.com>
Cc:     Maxime Ripard <maxime.ripard@...e-electrons.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        "Andrea Venturi (pers)" <be17068@...rbole.bo.it>
Subject: Re: [linux-sunxi] [PATCH v3 11/11] ASoC: sun4i-i2s: Add support for H3

On Sat, Aug 12, 2017 at 7:00 PM,  <codekipper@...il.com> wrote:
> From: Marcus Cooper <codekipper@...il.com>
>
> The sun8i-h3 introduces a lot of changes to the i2s block such
> as different register locations, extended clock division and
> more operational modes. As we have to consider the earlier
> implementation then these changes need to be isolated.
>
> None of the new functionality has been implemented yet, the
> driver has just been expanded to allow it work on the H3 SoC.
>
> Signed-off-by: Marcus Cooper <codekipper@...il.com>
> ---
>  .../devicetree/bindings/sound/sun4i-i2s.txt        |   2 +
>  sound/soc/sunxi/sun4i-i2s.c                        | 176 ++++++++++++++++++++-
>  2 files changed, 176 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
> index ee21da865771..fc5da6080759 100644
> --- a/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
> +++ b/Documentation/devicetree/bindings/sound/sun4i-i2s.txt
> @@ -8,6 +8,7 @@ Required properties:
>  - compatible: should be one of the following:
>     - "allwinner,sun4i-a10-i2s"
>     - "allwinner,sun6i-a31-i2s"
> +   - "allwinner,sun8i-h3-i2s"
>  - reg: physical base address of the controller and length of memory mapped
>    region.
>  - interrupts: should contain the I2S interrupt.
> @@ -22,6 +23,7 @@ Required properties:
>
>  Required properties for the following compatibles:
>         - "allwinner,sun6i-a31-i2s"
> +       - "allwinner,sun8i-h3-i2s"
>  - resets: phandle to the reset line for this codec
>
>  Example:
> diff --git a/sound/soc/sunxi/sun4i-i2s.c b/sound/soc/sunxi/sun4i-i2s.c
> index a6b464c8cc6c..b6faa95d972a 100644
> --- a/sound/soc/sunxi/sun4i-i2s.c
> +++ b/sound/soc/sunxi/sun4i-i2s.c
> @@ -92,11 +92,41 @@
>  #define SUN4I_I2S_RX_CHAN_SEL_REG      0x38
>  #define SUN4I_I2S_RX_CHAN_MAP_REG      0x3c
>
> +/* Defines required for sun8i-h3 support */
> +#define SUN8I_I2S_CTRL_BCLK_OUT                        BIT(18)
> +#define SUN8I_I2S_CTRL_LRCK_OUT                        BIT(17)
> +
> +#define SUN8I_I2S_FMT0_LRCK_PERIOD_MASK                GENMASK(17, 8)
> +#define SUN8I_I2S_FMT0_LRCK_PERIOD(period)     ((period << 8) - 1)

I'm pretty sure this should be ((period - 1) << 8).

Once fixed,

Reviewed-by: Chen-Yu Tsai <wens@...e.org>

P.S. the version tag for this series in the subject is wrong.