On Thu, 02 Jun 2016, tthayer@xxxxxxxxxxxxxxxxxxxxx wrote:
> From: Thor Thayer <tthayer@xxxxxxxxxxxxxxxxxxxxx>
>
> The Altera Arria10 Devkit System Resource chip is a Multi-Function
> Device with a GPIO expander.
>
> This patch adds documentation for the Altera A10-SR DT bindings.
>
> Signed-off-by: Thor Thayer <tthayer@xxxxxxxxxxxxxxxxxxxxx>
> ---
> v2 Addition of IRQ controller bindings.
> Removal of hw_mon sub-device.
> ---
> .../devicetree/bindings/mfd/altera-a10sr.txt | 46 ++++++++++++++++++++
> 1 file changed, 46 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mfd/altera-a10sr.txt
Applied, thanks.
> diff --git a/Documentation/devicetree/bindings/mfd/altera-a10sr.txt b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> new file mode 100644
> index 0000000..ea151f2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/altera-a10sr.txt
> @@ -0,0 +1,46 @@
> +* Altera Arria10 Development Kit System Resource Chip
> +
> +Required parent device properties:
> +- compatible : "altr,a10sr"
> +- spi-max-frequency : Maximum SPI frequency.
> +- reg : The SPI Chip Select address for the Arria10
> + System Resource chip
> +- interrupt-parent : The parent interrupt controller.
> +- interrupts : The interrupt line the device is connected to.
> +- interrupt-controller : Marks the device node as an interrupt controller.
> +- #interrupt-cells : The number of cells to describe an IRQ, should be 2.
> + The first cell is the IRQ number.
> + The second cell is the flags, encoded as trigger
> + masks from ../interrupt-controller/interrupts.txt.
> +
> +The A10SR consists of these sub-devices:
> +
> +Device Description
> +------ ----------
> +a10sr_gpio GPIO Controller
> +
> +Arria10 GPIO
> +Required Properties:
> +- compatible : Should be "altr,a10sr-gpio"
> +- gpio-controller : Marks the device node as a GPIO Controller.
> +- #gpio-cells : Should be two. The first cell is the pin number and
> + the second cell is used to specify flags.
> + See ../gpio/gpio.txt for more information.
> +
> +Example:
> +
> + resource-manager@0 {
> + compatible = "altr,a10sr";
> + reg = <0>;
> + spi-max-frequency = <100000>;
> + interrupt-parent = <&portb>;
> + interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> +
> + a10sr_gpio: gpio-controller {
> + compatible = "altr,a10sr-gpio";
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> + };
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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