On Mon, Jun 20, 2016 at 10:52:12AM +0800, Chen-Yu Tsai wrote:
> Signed-off-by: Chen-Yu Tsai <w...@csie.org>
> ---
> Changes since v2:
>
> - Fix interrupt line for ac100_codec in provided example.
>
> ---
> Documentation/devicetree/bindings/mfd/ac100.txt | 42
> +++++++++++++++++++++++++
> 1 file changed, 42 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/ac100.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/ac100.txt
> b/Documentation/devicetree/bindings/mfd/ac100.txt
> new file mode 100644
> index 000000000000..a793954bb952
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/ac100.txt
> @@ -0,0 +1,42 @@
> +X-Powers AC100 Codec/RTC IC device tree bindings
> +
> +AC100 is a audio codec and RTC subsystem combo IC. The 2 parts are
> +separated, including power supplies and interrupt lines, but share
> +a common register address space and host interface.
> +
> +Required properties:
> +- compatible: "x-powers,ac100"
> +- reg: The I2C slave address or RSB hardware address for the chip
> +- sub-nodes:
> + - codec
> + - compatible: "x-powers,ac100-codec"
> + - interrupt-parent: The parent interrupt controller
> + - interrupts: SoC NMI / GPIO interrupt connected to the IRQ_AUDIO pin
> + - rtc
> + - compatible: "x-powers,ac100-rtc"
> + - interrupt-parent: The parent interrupt controller
> + - interrupts: SoC NMI / GPIO interrupt connected to the IRQ_RTC pin
> + - #clock-cells: shall be 1
> + - clock-output-names: "cko1_rtc", "cko2_rtc", "cko3_rtc"
> + - see clock/clock-bindings.txt for common clock bindings
> +
> +Example:
> +
> +ac100: codec@e89 {
> + compatible = "x-powers,ac100";
> + reg = <0xe89>;
> +
> + ac100_codec {
Use generic node names and no underscores:
codec {
> + compatible = "x-powers,ac100-codec";
> + interrupt-parent = <&r_pio>;
> + interrupts = <0 9 IRQ_TYPE_LEVEL_LOW>; /* PL9 */
> + };
> +
> + ac100_rtc {
rtc {
> + compatible = "x-powers,ac100-rtc";
> + interrupt-parent = <&nmi_intc>;
> + interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
> + #clock-cells = <1>;
> + clock-output-names = "cko1_rtc", "cko2_rtc", "cko3_rtc";
> + };
> +};
> --
> 2.8.1
>
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