linux-kernel - Re: [PATCH v4 1/2] devicetree: add binding for Sigma Designs SMP86xx interrupt controller

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Date:	Fri, 22 Jan 2016 10:06:44 -0600
From:	Rob Herring <robh@...nel.org>
To:	Mans Rullgard <mans@...sr.com>
Cc:	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>,
	Mark Rutland <mark.rutland@....com>,
	Marc Gonzalez <marc_gonzalez@...madesigns.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Sebastian Frias <sf84@...oste.net>
Subject: Re: [PATCH v4 1/2] devicetree: add binding for Sigma Designs SMP86xx
 interrupt controller

On Wed, Jan 20, 2016 at 06:07:16PM +0000, Mans Rullgard wrote:
> This adds a binding for the secondary interrupt controller in
> Sigma Designs SMP86xx and SMP87xx chips.
> 
> Signed-off-by: Mans Rullgard <mans@...sr.com>
> ---
> Changes:
> - not included in v3
> ---
>  .../interrupt-controller/sigma,smp8642-intc.txt    | 49 ++++++++++++++++++++++
>  1 file changed, 49 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt
> new file mode 100644
> index 000000000000..2643f3466091
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interrupt-controller/sigma,smp8642-intc.txt
> @@ -0,0 +1,49 @@
> +Sigma Designs SMP86xx/SMP87xx secondary interrupt controller
> +
> +Required properties:
> +- compatible: should be "sigma,smp8642-intc"
> +- reg: physical address of MMIO region
> +- ranges: address space mapping of child nodes
> +- interrupt-parent: phandle of parent interrupt controller
> +- interrupt-controller: boolean
> +- #address-cells: should be <1>
> +- #size-cells: should be <1>
> +
> +One child node per control block with properties:
> +- reg: address of registers for this control block
> +- interrupt-controller: boolean
> +- #interrupt-cells: should be <2>, interrupt index and flags per interrupts.txt
> +- interrupts: interrupt spec of primary interrupt controller
> +
> +Example:
> +
> +interrupt-controller@...00 {
> +	compatible = "sigma,smp8642-intc";
> +	reg = <0x6e000 0x400>;
> +	ranges = <0x0 0x6e000 0x400>;
> +	interrupt-parent = <&gic>;
> +	interrupt-controller;
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +
> +	irq0: irq0 {

Keeping with generic names, this should be interrupt-controller@0 (and 
100, 300).

Otherwise,

Acked-by: Rob Herring <robh@...nel.org>

> +		reg = <0x000 0x100>;
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	irq1: irq1 {
> +		reg = <0x100 0x100>;
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
> +	irq2: irq2 {
> +		reg = <0x300 0x100>;
> +		interrupt-controller;
> +		#interrupt-cells = <2>;
> +		interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +};
> -- 
> 2.7.0
>