Hi,
On Thu, Jun 15, 2017 at 09:59:35PM +0800, Phil Reid wrote:
> From: Karl-Heinz Schneider <karl-heinz@xxxxxxxxxxxxxxxxx>
>
> This patch adds device tree documentation for the sbs-manager
>
> Signed-off-by: Karl-Heinz Schneider <karl-heinz@xxxxxxxxxxxxxxxxx>
> Signed-off-by: Phil Reid <preid@xxxxxxxxxxxxxxxxx>
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
-- Sebastian
> ---
> .../bindings/power/supply/sbs,sbs-manager.txt | 66 ++++++++++++++++++++++
> 1 file changed, 66 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt
>
> diff --git a/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt
> new file mode 100644
> index 0000000..4b219557
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/sbs,sbs-manager.txt
> @@ -0,0 +1,66 @@
> +Binding for sbs-manager
> +
> +Required properties:
> +- compatible: "<vendor>,<part-number>", "sbs,sbs-charger" as fallback. The part
> + number compatible string might be used in order to take care of vendor
> + specific registers.
> +- reg: integer, i2c address of the device. Should be <0xa>.
> +Optional properties:
> +- gpio-controller: Marks the port as GPIO controller.
> + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt.
> +- #gpio-cells: Should be <2>. The first cell is the pin number, the second cell
> + is used to specify optional parameters:
> + See "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt.
> +
> +From OS view the device is basically an i2c-mux used to communicate with up to
> +four smart battery devices at address 0xb. The driver actually implements this
> +behaviour. So standard i2c-mux nodes can be used to register up to four slave
> +batteries. Channels will be numerated starting from 1 to 4.
> +
> +Example:
> +
> +batman@a {
> + compatible = "lltc,ltc1760", "sbs,sbs-manager";
> + reg = <0x0a>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + gpio-controller;
> + #gpio-cells = <2>;
> +
> + i2c@1 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <1>;
> +
> + battery@b {
> + compatible = "ti,bq2060", "sbs,sbs-battery";
> + reg = <0x0b>;
> + sbs,battery-detect-gpios = <&batman 1 1>;
> + };
> + };
> +
> + i2c@2 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <2>;
> +
> + battery@b {
> + compatible = "ti,bq2060", "sbs,sbs-battery";
> + reg = <0x0b>;
> + sbs,battery-detect-gpios = <&batman 2 1>;
> + };
> + };
> +
> + i2c@3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <3>;
> +
> + battery@b {
> + compatible = "ti,bq2060", "sbs,sbs-battery";
> + reg = <0x0b>;
> + sbs,battery-detect-gpios = <&batman 3 1>;
> + };
> + };
> +};
> --
> 1.8.3.1
>
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