linux-kernel - Re: [linux-sunxi] [PATCH v2 11/12] ARM: dts: sun8i: add pinmux for V3s mmc1

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Message-ID: <CAGb2v64mCgAmWVsEsqMbAMZkiLEhdtaRnhjv6LRcWLY3GSBCwQ@mail.gmail.com>
Date:   Mon, 6 Mar 2017 12:22:47 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Icenowy Zheng <icenowy@...c.xyz>
Cc:     Vinod Koul <vinod.koul@...el.com>,
        Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>, Mark Brown <broonie@...nel.org>,
        dmaengine@...r.kernel.org, devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        linux-sunxi <linux-sunxi@...glegroups.com>
Subject: Re: [linux-sunxi] [PATCH v2 11/12] ARM: dts: sun8i: add pinmux for
 V3s mmc1

On Sun, Mar 5, 2017 at 9:37 PM, Icenowy Zheng <icenowy@...c.xyz> wrote:
> Allwinner V3s SoC features 3 MMC controllers, mmc0 is used as the
> MicroSD slot on Lichee Pi Zero, and on Lichee Pi Zero's dock mmc1 is
> also soldered as a MicroSD slot.
>
> Add the pinmux for mmc1, thus we can enable the MicroSD slot on the
> Lichee Pi Zero dock.
>
> Signed-off-by: Icenowy Zheng <icenowy@...c.xyz>
> ---
>  arch/arm/boot/dts/sun8i-v3s.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
> index 5fb6cb69f7bc..a39c26bceedc 100644
> --- a/arch/arm/boot/dts/sun8i-v3s.dtsi
> +++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
> @@ -234,6 +234,14 @@
>                                 drive-strength = <30>;
>                                 bias-pull-up;
>                         };
> +
> +                       mmc1_pins: mmc1@0 {

This seems to be the only possible configuration. In that case, please drop
the @0 from the node name. We shouldn't be adding them anyway, since it causes
warnings from the device tree compiler.

Otherwise,

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

> +                               pins = "PG0", "PG1", "PG2", "PG3",
> +                                      "PG4", "PG5";
> +                               function = "mmc1";
> +                               drive-strength = <30>;
> +                               bias-pull-up;
> +                       };
>                 };
>
>                 timer@...20c00 {
> --
> 2.11.1
>
> --
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