linux-kernel - Re: [PATCH v2 1/2] dt-bindings: interrupt-controller: Amazon's Annapurna Labs FIC

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Message-ID: <20190605154955.GD1534@u40b0340c692b58f6553c.ant.amazon.com>
Date:   Wed, 5 Jun 2019 08:49:55 -0700
From:   Eduardo Valentin <eduval@...zon.com>
To:     Talel Shenhar <talel@...zon.com>
CC:     <nicolas.ferre@...rochip.com>, <jason@...edaemon.net>,
        <marc.zyngier@....com>, <mark.rutland@....com>,
        <mchehab+samsung@...nel.org>, <robh+dt@...nel.org>,
        <davem@...emloft.net>, <shawn.lin@...k-chips.com>,
        <tglx@...utronix.de>, <devicetree@...r.kernel.org>,
        <gregkh@...uxfoundation.org>, <linux-kernel@...r.kernel.org>,
        <dwmw@...zon.co.uk>, <benh@...nel.crashing.org>,
        <jonnyc@...zon.com>, <hhhawa@...zon.com>, <ronenk@...zon.com>,
        <hanochu@...zon.com>, <barakw@...zon.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: interrupt-controller: Amazon's
 Annapurna Labs FIC

On Wed, Jun 05, 2019 at 01:52:00PM +0300, Talel Shenhar wrote:
> Document Amazon's Annapurna Labs Fabric Interrupt Controller SoC binding.
> 
> Signed-off-by: Talel Shenhar <talel@...zon.com>
> ---
>  .../interrupt-controller/amazon,al-fic.txt         | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt b/Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt
> new file mode 100644
> index 0000000..a2f31a6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/amazon,al-fic.txt
> @@ -0,0 +1,22 @@
> +Amazon's Annapurna Labs Fabric Interrupt Controller
> +
> +Required properties:
> +
> +- compatible: should be "amazon,al-fic"
> +- reg: physical base address and size of the registers
> +- interrupt-controller: identifies the node as an interrupt controller
> +- #interrupt-cells: must be 2.

It would be great if you describe what the 2 numbers must represent here..

> +- interrupt-parent: specifies the parent interrupt controller.
> +- interrupts: describes which input line in the interrupt parent, this
> +  fic's output is connected to.
> +
> +Example:
> +
> +amazon_fic: amazon_fic {
> +	compatible = "amazon,al-fic";
> +	interrupt-controller;
> +	#interrupt-cells = <1>;
> +	reg = <0x0 0xfd8a8500 0x0 0x1000>;
> +	interrupt-parent = <&gic>;
> +	interrupts = <GIC_SPI 0x0 IRQ_TYPE_LEVEL_HIGH>;
> +};
> -- 
> 2.7.4
> 

-- 
All the best,
Eduardo Valentin