linux-kernel - Re: [PATCH 1/2] dt-bindings: interrupt-controller: add Hisilicon SD5203 vector interrupt controller

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Message-ID: <20200914203110.GA185427@bogus>
Date:   Mon, 14 Sep 2020 14:31:10 -0600
From:   Rob Herring <robh@...nel.org>
To:     Zhen Lei <thunder.leizhen@...wei.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: Re: [PATCH 1/2] dt-bindings: interrupt-controller: add Hisilicon
 SD5203 vector interrupt controller

On Thu, Sep 03, 2020 at 08:05:03PM +0800, Zhen Lei wrote:
> Add DT bindings for the Hisilicon SD5203 vector interrupt controller.
> 
> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>
> ---
>  .../hisilicon,sd5203-vic.txt                  | 27 +++++++++++++++++++

Bindings should be in DT schema format now.

>  1 file changed, 27 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/hisilicon,sd5203-vic.txt
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/hisilicon,sd5203-vic.txt b/Documentation/devicetree/bindings/interrupt-controller/hisilicon,sd5203-vic.txt
> new file mode 100644
> index 000000000000..a08292e868b0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/hisilicon,sd5203-vic.txt
> @@ -0,0 +1,27 @@
> +Hisilicon SD5203 vector interrupt controller (VIC)
> +
> +Hisilicon SD5203 VIC based on Synopsys DesignWare APB interrupt controller, but
> +there's something special:
> +1. The maximum number of irqs supported is 32. The registers ENABLE, MASK and
> +   FINALSTATUS are 32 bits.
> +2. There is only one VIC, it's used as primary interrupt controller.
> +
> +Required properties:
> +- compatible: shall be "hisilicon,sd5203-vic"
> +- reg: physical base address of the controller and length of memory mapped
> +  region starting with ENABLE_LOW register
> +- interrupt-controller: identifies the node as an interrupt controller
> +- #interrupt-cells: number of cells to encode an interrupt-specifier, shall be 1
> +
> +The interrupt sources map to the corresponding bits in the interrupt
> +registers, i.e.
> +- 0 maps to bit 0 of low interrupts,
> +- 1 maps to bit 1 of low interrupts,
> +
> +Example:
> +	vic: interrupt-controller@...30000 {
> +		compatible = "hisilicon,sd5203-vic";
> +		reg = <0x10130000 0x1000>;
> +		interrupt-controller;
> +		#interrupt-cells = <1>;
> +	};
> -- 
> 2.26.0.106.g9fadedd
> 
>