On Fri, 10 Feb 2017, Charles Keepax wrote:
> This is just a very simple initial binding, supporting only registering
> the chip and the GPIOs. More features will be added as support for
> device tree in the driver is expanded.
>
> Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/mfd/wm831x.txt | 31 ++++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/wm831x.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/wm831x.txt b/Documentation/devicetree/bindings/mfd/wm831x.txt
> new file mode 100644
> index 0000000..9771022
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/wm831x.txt
> @@ -0,0 +1,31 @@
> +Cirrus Logic/Wolfson Microelectronics wm831x PMICs
> +
> +System PMICs with a wide range of additional features.
> +
> +Required properties:
> +
> + - compatible : One of the following chip-specific strings:
> + "wlf,wm8310"
> + "wlf,wm8311"
> + "wlf,wm8312"
> + "wlf,wm8320"
> + "wlf,wm8321"
> + "wlf,wm8325"
> + "wlf,wm8326"
> +
> + - reg : I2C slave address when connected using I2C, chip select number when
> + using SPI.
> +
> + - gpio-controller : Indicates this device is a GPIO controller.
> + - #gpio-cells : Must be 2. The first cell is the pin number and the
> + second cell is used to specify optional parameters (currently unused).
Will it ever be used?
Apart from that, looks okay.
For my own reference:
Acked-for-MFD-by: Lee Jones <lee.jones@xxxxxxxxxx>
> +Example:
> +
> +wm8310: wm8310@36 {
> + compatible = "wlf,wm8310";
> + reg = <0x36>;
> +
> + gpio-controller;
> + #gpio-cells = <2>;
> +};
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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