On Oct 8, 2013, at 7:25 AM, Christian Ruppert wrote:
> The GPIO driver for the Abilis Systems TB10x series of SOCs based on ARC700
> CPUs. It supports GPIO control and GPIO interrupt generation. This driver
> works in conjunction with the TB10x pinctrl driver.
>
> Signed-off-by: Sascha Leuenberger <sascha.leuenberger@xxxxxxxxxx>
> Signed-off-by: Christian Ruppert <christian.ruppert@xxxxxxxxxx>
> ---
> .../devicetree/bindings/gpio/abilis,tb10x-gpio.txt | 36 ++
> drivers/gpio/Kconfig | 4 +
> drivers/gpio/Makefile | 1 +
> drivers/gpio/gpio-tb10x.c | 341 ++++++++++++++++++++
> 4 files changed, 382 insertions(+), 0 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt
> create mode 100644 drivers/gpio/gpio-tb10x.c
>
> diff --git a/Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt b/Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt
> new file mode 100644
> index 0000000..00611ac
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt
> @@ -0,0 +1,36 @@
> +* Abilis TB10x GPIO controller
> +
> +Required Properties:
> +- compatible: Should be "abilis,tb10x-gpio"
> +- reg: Address and length of the register set for the device
> +- gpio-controller: Marks the device node as a gpio controller.
> +- #gpio-cells: Should be <2>. The first cell is the pin number and the
> + second cell is used to specify optional parameters:
> + - bit 0 specifies polarity (0 for normal, 1 for inverted).
> +- abilis,ngpio: the number of GPIO pins this driver controls.
> +
> +Optional Properties:
> +- interrupt-controller: Marks the device node as an interrupt controller.
> +- #interrupt-cells: Should be <1>. Interrupts are triggered on both edges.
> +- interrupts: Defines the interrupt line connecting this GPIO controller to
> + its parent interrupt controller.
> +- interrupt-parent: Defines the parent interrupt controller.
> +
> +GPIO ranges are specified as described in
> +Documentation/devicetree/bindings/gpio/gpio.txt
> +
> +Example:
> +
> + gpioa: gpio@FF140000 {
> + compatible = "abilis,tb10x-gpio";
> + interrupt-controller;
> + #interrupt-cells = <1>;
> + interrupt-parent = <&tb10x_ictl>;
> + interrupts = <27 2>;
> + reg = <0xFF140000 0x1000>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + abilis,ngpio = <3>;
> + gpio-ranges = <&iomux 0 0 0>;
> + gpio-ranges-group-names = "gpioa_pins";
> + };
For the Binding part:
Acked-by: Kumar Gala <galak@xxxxxxxxxxxxxx>
- k
--
Employee of Qualcomm Innovation Center, Inc.
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