Hi, On Fri, Oct 19, 2018 at 06:53:14PM +0800, Baolin Wang wrote: > This patch adds the binding documentation for Spreadtrum SC27XX series PMICs > fuel gauge unit device, which is used to calculate the battery capacity. > > Signed-off-by: Baolin Wang <[email protected]> > Reviewed-by: Linus Walleij <[email protected]> > Reviewed-by: Rob Herring <[email protected]> > ---
Looks good to me.
-- Sebastian
> Changes from v4:
> - None.
>
> Changes from v3:
> - Add reviewed tag from Rob.
>
> Changes from v2:
> - Add reviewed tag from Linus.
>
> 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
>
> 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..98a2400
> --- /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 = "simple-battery";
> + charge-full-design-microamp-hours = <1900000>;
> + constant-charge-voltage-max-microvolt = <4350000>;
> + ocv-capacity-celsius = <20>;
> + ocv-capacity-table-0 = <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 = "sprd,sc2731";
> + reg = <0>;
> + spi-max-frequency = <26000000>;
> + interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + fgu@a00 {
> + compatible = "sprd,sc2731-fgu";
> + reg = <0xa00>;
> + battery-detect-gpios = <&pmic_eic 9 GPIO_ACTIVE_HIGH>;
> + io-channels = <&pmic_adc 5>;
> + io-channel-names = "bat-temp";
> + monitored-battery = <&bat>;
> + };
> + };
> --
> 1.7.9.5
>
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