On Sat, 01 Apr 2017, Javier Martinez Canillas wrote:
> There are Device Tree source files defining a device node for the
> retu/tahvo I2C chip, but there isn't a DT binding document for it.
>
> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
> ---
>
> Changes in v3: None
> Changes in v2: None
>
> Documentation/devicetree/bindings/mfd/retu.txt | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/retu.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/retu.txt b/Documentation/devicetree/bindings/mfd/retu.txt
> new file mode 100644
> index 000000000000..2309e599a731
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/retu.txt
> @@ -0,0 +1,19 @@
> +* Device tree bindings for Nokia Retu and Tahvo multi-function device
> +
> +Retu and Tahvo are a multi-function devices found on Nokia Internet
> +Tablets (770, N800 and N810).
More information please. What functions to they serve?
> +Required properties:
> +- compatible: "nokia,retu-mfd" or "nokia,tahvo-mfd"
> +- reg: Specifies the I2C slave address of the ASIC chip
> +
> +Example:
> +
> +i2c0 {
> + retu_mfd: retu@1 {
Please avoid the term MFD at all times when using Device Tree. DT is
meant to be OS agnostic and MFD is a Linuxisum.
> + compatible = "nokia,retu-mfd";
> + interrupt-parent = <&gpio4>;
> + interrupts = <12 IRQ_TYPE_EDGE_RISING>;
> + reg = <0x1>;
> + };
> +};
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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