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Date:   Wed, 26 Sep 2018 16:14:08 +0200
From:   Sebastian Reichel <sre@kernel.org>
To:     Baolin Wang <baolin.wang@linaro.org>
Cc:     robh+dt@kernel.org, mark.rutland@arm.com, linux-pm@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        yuanjiang.yu@unisoc.com, broonie@kernel.org, ctatlor97@gmail.com,
        linus.walleij@linaro.org
Subject: Re: [PATCH v2 3/4] dt-bindings: power: Add Spreadtrum SC27XX fuel
 gauge unit documentation
Message-ID: <20180926141408.dumlwnjmbue4nkjm@earth.universe>
References: <358665e3f4f9ec105dc2f8a2dc6dd98dbe761fae.1537930252.git.baolin.wang@linaro.org>
 <b4b36b7b54cc227e6e7f14c314b4617863a205f5.1537930252.git.baolin.wang@linaro.org>
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Hi,

On Wed, Sep 26, 2018 at 10:59:13AM +0800, Baolin Wang wrote:
> This patch adds the binding documentation for Spreadtrum SC27XX series PM=
ICs
> fuel gauge unit device, which is used to calculate the battery capacity.
>=20
> Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
> ---

Looks good to me.

-- Sebastian

> Changes from v1:
>  - Renamed GPIO property.
>  - Use standand battery properties instead of 'sprd,inner-resist' and
>    'sprd,ocv-cap-table'.
>  - Remove battery node's description.
> ---
>  .../devicetree/bindings/power/supply/sc27xx-fg.txt |   52 ++++++++++++++=
++++++
>  1 file changed, 52 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/sc27xx=
-fg.txt
>=20
> diff --git a/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt=
 b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
> new file mode 100644
> index 0000000..b161468
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/sc27xx-fg.txt
> @@ -0,0 +1,52 @@
> +Spreadtrum SC27XX PMICs Fuel Gauge Unit Power Supply Bindings
> +
> +Required properties:
> +- compatible: Should be one of the following:
> +  "sprd,sc2720-fgu",
> +  "sprd,sc2721-fgu",
> +  "sprd,sc2723-fgu",
> +  "sprd,sc2730-fgu",
> +  "sprd,sc2731-fgu".
> +- reg: The address offset of fuel gauge unit.
> +- battery-detect-gpios: GPIO for battery detection.
> +- io-channels: Specify the IIO ADC channel to get temperature.
> +- io-channel-names: Should be "bat-temp".
> +- monitored-battery: Phandle of battery characteristics devicetree node.
> +  See Documentation/devicetree/bindings/power/supply/battery.txt
> +
> +Example:
> +
> +	bat: battery {
> +		compatible =3D "simple-battery";
> +		charge-full-design-microamp-hours =3D <1900000>;
> +		constant-charge-voltage-max-microvolt =3D <4350000>;
> +		ocv-capacity-table-temperatures =3D <20>;
> +		ocv-capacity-table-0 =3D <4185000 100>, <4113000 95>, <4066000 90>,
> +					<4022000 85>, <3983000 80>, <3949000 75>,
> +					<3917000 70>, <3889000 65>, <3864000 60>,
> +					<3835000 55>, <3805000 50>, <3787000 45>,
> +					<3777000 40>, <3773000 35>, <3770000 30>,
> +					<3765000 25>, <3752000 20>, <3724000 15>,
> +					<3680000 10>, <3605000 5>, <3400000 0>;
> +		......
> +	};
> +
> +	sc2731_pmic: pmic@0 {
> +		compatible =3D "sprd,sc2731";
> +		reg =3D <0>;
> +		spi-max-frequency =3D <26000000>;
> +		interrupts =3D <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-controller;
> +		#interrupt-cells =3D <2>;
> +		#address-cells =3D <1>;
> +		#size-cells =3D <0>;
> +
> +		fgu@a00 {
> +			compatible =3D "sprd,sc2731-fgu";
> +			reg =3D <0xa00>;
> +			battery-detect-gpios =3D <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
> +			io-channels =3D <&pmic_adc 5>;
> +			io-channel-names =3D "bat-temp";
> +			monitored-battery =3D <&bat>;
> +		};
> +	};
> --=20
> 1.7.9.5
>=20

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