linux-kernel - Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl and gpio drivers

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Date:   Mon, 3 Apr 2017 12:57:25 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Paul Cercueil <paul@...pouillou.net>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Courbot <gnurou@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>
Cc:     Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Maarten ter Huurne <maarten@...ewalker.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Paul Burton <paul.burton@...tec.com>, james.hogan@...tec.com,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mips@...ux-mips.org,
        linux-mmc@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-pwm@...r.kernel.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl
 and gpio drivers

Hello!

On 4/2/2017 11:42 PM, Paul Cercueil wrote:

> For a description of the pinctrl devicetree node, please read
> Documentation/devicetree/bindings/pinctrl/ingenic,pinctrl.txt
>
> For a description of the gpio devicetree nodes, please read
> Documentation/devicetree/bindings/gpio/ingenic,gpio.txt
>
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
[...]

> diff --git a/arch/mips/boot/dts/ingenic/jz4740.dtsi b/arch/mips/boot/dts/ingenic/jz4740.dtsi
> index 3e1587f1f77a..9c23c877fc34 100644
> --- a/arch/mips/boot/dts/ingenic/jz4740.dtsi
> +++ b/arch/mips/boot/dts/ingenic/jz4740.dtsi
> @@ -55,6 +55,67 @@
>  		clock-names = "rtc";
>  	};
>
> +	pinctrl: ingenic-pinctrl@...10000 {

    The node name should be generic, so please rename it to something like 
"pin-controller@..."

> +		compatible = "ingenic,jz4740-pinctrl";
> +		reg = <0x10010000 0x400>;
> +
> +		gpa: gpio-controller@0 {

    The name should be just "gpio@0", according to ePAPR and its successor 
spec. Although, using the <unit-address> without the "reg" prop isn't allowed 
either...

[...]

MBR, Sergei