linux-kernel - Re: [PATCH V3 1/3] arm64: dts: Add Hi6220 gpio configuration nodes

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Date:	Tue, 19 Jan 2016 13:37:19 +0000
From:	Sudeep Holla <sudeep.holla@....com>
To:	Zhong Kaihua <zhongkaihua@...wei.com>, robh+dt@...nel.org
Cc:	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	catalin.marinas@....com, will.deacon@....com,
	xuyiping@...ilicon.com, xuwei5@...ilicon.com,
	bintian.wang@...wei.com, haojian.zhuang@...aro.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, puck.chen@...ilicon.com,
	Sudeep Holla <sudeep.holla@....com>, w.f@...wei.com,
	dan.zhao@...ilicon.com, kong.kongxinwei@...ilicon.com
Subject: Re: [PATCH V3 1/3] arm64: dts: Add Hi6220 gpio configuration nodes



On 19/01/16 10:51, Zhong Kaihua wrote:
> arm64: dts: Add Hi6220 gpio configuration nodes
>
> Signed-off-by: Zhong Kaihua <zhongkaihua@...wei.com>
>                 Kong Xinwei <kong.kongxinwei@...ilicon.com>
>
> Acked-by: Rob Herring <robh@...nel.org>
> ---
>   .../devicetree/bindings/gpio/gpio-hi6220.txt       |  23 +
>   arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts     |   1 +
>   arch/arm64/boot/dts/hisilicon/hi6220.dtsi          | 259 +++++++++
>   arch/arm64/boot/dts/hisilicon/hikey-gpio.dtsi      | 607 +++++++++++++++++++++
>   4 files changed, 890 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/gpio/gpio-hi6220.txt
>   create mode 100644 arch/arm64/boot/dts/hisilicon/hikey-gpio.dtsi
>
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-hi6220.txt b/Documentation/devicetree/bindings/gpio/gpio-hi6220.txt
> new file mode 100644
> index 0000000..a9cbf21
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/gpio-hi6220.txt
> @@ -0,0 +1,23 @@
> +Hisilicon Hi6220 GPIO controller bindings
> +
> +Required properties:
> +	- compatible: "arm,pl061","arm,primecell"
> +	- gpio-controller: Marks the device node as a GPIO controller.
> +	- #gpio-cells: Should be 2. See gpio.txt in this directory for a
> +		 description of	the cells format.
> +	- interrupt-controller: Mark the device node as an interrupt controller
> +

Why do you need extra binding document here as the compatible is same as
[1] ? You can extend that if required and add example there IMO.

-- 
Regards,
Sudeep

[1] Documentation/devicetree/bindings/gpio/pl061-gpio.txt