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    Subject[PATCH v5 02/14] dt/bindings: Document gpio-ingenic
    Date
    This commit adds documentation for the devicetree bindings of the
    gpio-ingenic driver, which handles GPIOs of the Ingenic SoCs
    currently supported by the Linux kernel.

    Signed-off-by: Paul Cercueil <paul@crapouillou.net>
    ---
    .../devicetree/bindings/gpio/ingenic,gpio.txt | 46 ++++++++++++++++++++++
    1 file changed, 46 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/gpio/ingenic,gpio.txt

    v2: New patch
    v3: No changes
    v4: Update for the v4 version of the gpio-ingenic driver
    v5: Remove gpio-bank-... compatible strings, and add 'reg' property

    diff --git a/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
    new file mode 100644
    index 000000000000..7988aeb725f4
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
    @@ -0,0 +1,46 @@
    +Ingenic jz47xx GPIO controller
    +
    +That the Ingenic GPIO driver node must be a sub-node of the Ingenic pinctrl
    +driver node.
    +
    +Required properties:
    +--------------------
    +
    + - compatible: Must contain one of:
    + - "ingenic,jz4740-gpio"
    + - "ingenic,jz4770-gpio"
    + - "ingenic,jz4780-gpio"
    + - reg: The GPIO bank number.
    + - interrupt-controller: Marks the device node as an interrupt controller.
    + - interrupts: Interrupt specifier for the controllers interrupt.
    + - #interrupt-cells: Should be 2. Refer to
    + ../interrupt-controller/interrupts.txt for more details.
    + - gpio-controller: Marks the device node as a GPIO controller.
    + - #gpio-cells: Should be 2. The first cell is the GPIO number and the second
    + cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
    + GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
    + - gpio-ranges: Range of pins managed by the GPIO controller. Refer to
    + 'gpio.txt' in this directory for more details.
    +
    +Example:
    +--------
    +
    +&pinctrl {
    + #address-cells = <1>;
    + #size-cells = <0>;
    +
    + gpa: gpio@0 {
    + compatible = "ingenic,jz4740-gpio";
    + reg = <0>;
    +
    + gpio-controller;
    + gpio-ranges = <&pinctrl 0 0 32>;
    + #gpio-cells = <2>;
    +
    + interrupt-controller;
    + #interrupt-cells = <2>;
    +
    + interrupt-parent = <&intc>;
    + interrupts = <28>;
    + };
    +};
    --
    2.11.0
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