linux-kernel - Re: [PATCH v2 04/18] dt-bindings: irq: arm,versatile-fpga: add arm,rps-irq compatible string

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Message-ID: <20160317171507.GA31679@rob-hp-laptop>
Date:	Thu, 17 Mar 2016 12:15:07 -0500
From:	Rob Herring <robh@...nel.org>
To:	Neil Armstrong <narmstrong@...libre.com>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	tglx@...utronix.de, jason@...edaemon.net, marc.zyngier@....com,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v2 04/18] dt-bindings: irq: arm,versatile-fpga: add
 arm,rps-irq compatible string

On Wed, Mar 09, 2016 at 11:24:06AM +0100, Neil Armstrong wrote:
> Under the OX810SE, this same controller is used as "Reference Peripheral
> Specification" Interrupt Controller, so add new compatible string.
> 
> Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
> ---
>  .../devicetree/bindings/interrupt-controller/arm,versatile-fpga-irq.txt | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,versatile-fpga-irq.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,versatile-fpga-irq.txt
> index c9cf605..2fe78d5 100644
> --- a/Documentation/devicetree/bindings/interrupt-controller/arm,versatile-fpga-irq.txt
> +++ b/Documentation/devicetree/bindings/interrupt-controller/arm,versatile-fpga-irq.txt
> @@ -6,7 +6,7 @@ controllers are OR:ed together and fed to the CPU tile's IRQ input. Each
>  instance can handle up to 32 interrupts.
>  
>  Required properties:
> -- compatible: "arm,versatile-fpga-irq"
> +- compatible: "arm,versatile-fpga-irq" or "arm,rps-irq"

Use a compatible string that reflects the actual implementation not a 
spec. The current string is a bad example as it already refers to 
multiple implementations.

Rob