On Fri, 02 Jun 2017, Valentin Sitdikov wrote:
> This patch adds documentation for the max7360 bindings.
> The max7360 is multifunctional device containing GPIO, keypad, PWM and rotary encoder submodules.
>
> Signed-off-by: Andrei Dranitca <Andrei_Dranitca@xxxxxxxxxx>
> Signed-off-by: Valentin Sitdikov <valentin_sitdikov@xxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/mfd/max7360.txt | 74 +++++++++++++++++++++++
> 1 file changed, 74 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/max7360.txt
>
> diff --git a/Documentation/devicetree/bindings/mfd/max7360.txt b/Documentation/devicetree/bindings/mfd/max7360.txt
> new file mode 100644
> index 0000000..a38ca9e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/max7360.txt
> @@ -0,0 +1,74 @@
> +* Maxim MAX7360 multi-function device
Multi-Function Device
> +The Maxim MAX7360 is a multifunction device which includes
Multi-Function Device
> +64 key switches, eight LED drivers/GPIOs, PWM intensity control,
s/eight/8/
> +and rotary switch control.
> +
> +Required properties:
> +- compatible: Should be the following: "maxim,max7360"
> +- reg: Specifies the i2c slave address of the max7360 block.
I2C
> + It can be 0x38, 0x3a, 0x3c or 0x3e IIUC.
> +
> +Optional properties:
> +- interrupt-parent: Specifies the phandle of the interrupt controller to which
> + the interrupts from MAX7360 are routed to.
Either use a full-stop, or don't, but please do not mix.
> +- interrupts: list of IRQ lines specifiers
> +- interrupt-names: list of "inti" and "intk"
> +- interrupt-controller: Identifies the device as an interrupt controller.
> +- #interrupt-cells : Number of cells to encode an interrupt source, shall be 1.
Tab these out.
> +Required properties:
> +- compatible: Should be the following: "maxim,max7360"
> +- reg: Specifies the i2c slave address of the max7360 block.
> + It can be 0x38, 0x3a, 0x3c or 0x3e IIUC.
> +
> +Optional properties:
> +- interrupt-parent: Specifies the phandle of the interrupt controller to which
> + the interrupts from MAX7360 are routed to.
> +- interrupts: list of IRQ lines specifiers
> +- interrupt-names: list of "inti" and "intk"
> +- interrupt-controller: Identifies the device as an interrupt controller.
> +- #interrupt-cells : Number of cells to encode an interrupt source, shall be 1.
Descriptions should *all* start with an upper case character.
> +Examples:
> +
> +Without subnodes:
> + max7360@38 {
> + compatible = "maxim,max7360";
> + reg = <0x38>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <23 IRQ_TYPE_LEVEL_LOW>, <23 IRQ_TYPE_LEVEL_LOW>;
> + interrupt-names = "inti", "intk";
> + interrupt-controller;
> + #interrupt-cells = <0x1>;
> +
Remove this line.
> + };
> +
> +With subnodes:
> + max7360@38 {
> + compatible = "maxim,max7360";
> + reg = <0x38>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <23 IRQ_TYPE_LEVEL_LOW>, <23 IRQ_TYPE_LEVEL_LOW>;
> + interrupt-names = "inti", "intk";
> + interrupt-controller;
> + #interrupt-cells = <0x1>;
> +
> + gpio {
> + compatible = "maxim,max7360-gpio";
> + gpio-controller;
> + #gpio-cells = <0x2>;
> + interrupt-controller;
> + #interrupt-cells = <0x2>;
> + interrupts = <0>;
> + };
> +
> + keypad {
> + compatible = "maxim,max7360-keypad";
> + maxim,debounce_reg = /bits/ 8 <0xef>;
> + maxim,ports_reg = /bits/ 8 <0xae>;
> + linux,keymap = < MATRIX_KEY(0, 0, KEY_F5)
> + MATRIX_KEY(1, 0, KEY_F4) >;
> + keypad,num-rows = <2>;
> + keypad,num-columns = <1>;
> + interrupts = <1>;
> + };
> +
> + pwm {
> + compatible = "maxim,max7360-pwm";
> + #pwm-cells = <0x2>;
> + };
> +
> + rotary-encoder {
> + compatible = "maxim,max7360-rotary";
> + interrupts = <2>;
> + };
> +
> + };
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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