On Sun, 7 Jul 2019 15:22:46 +0200
Aleix Roca Nonell <kernelro...@gmail.com> wrote:

> Add binding for Realtek RTD129x interrupt controller.
> 
> Signed-off-by: Aleix Roca Nonell <kernelro...@gmail.com>
> ---
>  .../realtek,rtd129x-intc.txt                  | 24 +++++++++++++++++++
>  1 file changed, 24 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/interrupt-controller/realtek,rtd129x-intc.txt
> 
> diff --git 
> a/Documentation/devicetree/bindings/interrupt-controller/realtek,rtd129x-intc.txt
>  
> b/Documentation/devicetree/bindings/interrupt-controller/realtek,rtd129x-intc.txt
> new file mode 100644
> index 000000000000..3ebb7c02afe5
> --- /dev/null
> +++ 
> b/Documentation/devicetree/bindings/interrupt-controller/realtek,rtd129x-intc.txt
> @@ -0,0 +1,24 @@
> +Realtek RTD129x IRQ Interrupt Controller
> +=======================================
> +
> +Required properties:
> +
> +- compatible           :  Should be one of the following:
> +                          - "realtek,rtd129x-intc-misc"
> +                          - "realtek,rtd129x-intc-iso"

What does 'iso' mean in this context?

> +- reg                  :  Specifies the address of the ISR, IER and Unmask
> +                          register in couples of "address length".

Are these registers actually interleaved with other stuff? What else it
in between?

> +- interrupts           :  Specifies the interrupt line which is mux'ed.
> +- interrupt-controller :  Presence indicates the node as interrupt 
> controller.
> +- #interrupt-cells     :  Shall be 1. See common bindings in interrupt.txt.

So I guess this is level only, with an unspecified polarity? No edge
interrupts?

> +
> +
> +Example:
> +
> +     interrupt-controller@98007000 {
> +             compatible = "realtek,rtd129x-iso-irq-mux";

It'd be good if the the example matched the rest of the documentation.

> +             reg = <0x98007000 0x4 0x98007040 0x4 0x98007004 0x4>;
> +             interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
> +             interrupt-controller;
> +             #interrupt-cells = <1>;
> +     };

Thanks,

        M.
-- 
Without deviation from the norm, progress is not possible.

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