On Tue, Jul 24, 2018 at 05:02:17PM +0200, Parthiban Nallathambi wrote:
> Actions Semi OWL family SoC's provides support for external interrupt
> controller to be connected and controlled using SIRQ pins. S500, S700
> and S900 provides 3 SIRQ lines and works independently for 3 external
> interrupt controllers.
>
> Signed-off-by: Parthiban Nallathambi <p...@denx.de>
> Signed-off-by: Saravanan Sekar <sravanh...@gmail.com>
> ---
> .../interrupt-controller/actions,owl-sirq.txt | 34
> ++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
> create mode 100644
> Documentation/devicetree/bindings/interrupt-controller/actions,owl-sirq.txt
>
> diff --git
> a/Documentation/devicetree/bindings/interrupt-controller/actions,owl-sirq.txt
> b/Documentation/devicetree/bindings/interrupt-controller/actions,owl-sirq.txt
> new file mode 100644
> index 000000000000..c5f8a29573c8
> --- /dev/null
> +++
> b/Documentation/devicetree/bindings/interrupt-controller/actions,owl-sirq.txt
> @@ -0,0 +1,34 @@
> +Actions Semi Owl SoCs SIRQ interrupt controller
> +
> +S500, S700 and S900 SoC's from Actions provides interface, in which external
> +interrupt controller can be connected. It has the following properties:
> +
> +- inputs three interrupt signal from external interrupt controller
> +
> +Required properties:
> +
> +- compatible: should be one of the following
> + "actions,s700-sirq"
> + "actions,s900-sirq"
> +- reg: physical base address of the controller and length of memory mapped.
> +- interrupt-controller: identifies the node as an interrupt controller
> +- #interrupt-cells: specifies the number of cells needed to encode an
> interrupt
> + source, should be 2.
> +- interrupts: specifies the interrupt line in the interrupt controller and
> + interrupt type (level or edge triggered)
Need to state there are 3 interrupts.
> +- sampling-rate-24m: this means the external controller's interrupts can be
Needs a vendor prefix.
> + sampled at 24MHz. Sampling can be specified for each SIRQ lines, as an
> array
> + element. By default, all lines are sampled at 32KHz.
> +
> +Example:
> +
> +sirq: interrupt-controller@e01b0000 {
> + compatible = "actions,s700-sirq";
> + reg = <0 0xe01b0000 0 0x1000>;
> + interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
> + <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
> + interrupt-controller;
> + #interrupt-cells = <2>;
> + sampling-rate-24m = <0 0 1>;
> +};
> --
> 2.14.4
>
