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

From Linus Walleij <linus.walleij@linaro.org>
Newsgroups linux.kernel
Subject Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl and gpio drivers
Date 2017-04-07 11:50 +0200
Message-ID <ttyGJ-5mq-7@gated-at.bofh.it> (permalink)
References <t3AXv-5pP-5@gated-at.bofh.it> <trUBH-5rN-5@gated-at.bofh.it> <trUBI-5rN-11@gated-at.bofh.it>
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On Sun, Apr 2, 2017 at 10:42 PM, Paul Cercueil <paul@crapouillou.net> 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@crapouillou.net>
> ---
>  arch/mips/boot/dts/ingenic/jz4740.dtsi | 61 ++++++++++++++++++++++++++++++++++
>  1 file changed, 61 insertions(+)
>
>  v2: Changed the devicetree bindings to match the new driver
>  v3: No changes
>  v4: Update the bindings for the v4 version of the drivers
(...)

> +       pinctrl: ingenic-pinctrl@10010000 {
> +               compatible = "ingenic,jz4740-pinctrl";
> +               reg = <0x10010000 0x400>;
> +
> +               gpa: gpio-controller@0 {
> +                       compatible = "ingenic,gpio-bank-a", "ingenic,jz4740-gpio";

As Sergei and Rob notes, the bank compatible properties look
a bit strange. Especially if they are all the same essentially.

I like Sergei's idea to simply use the reg property if what you want
is really a unique ID number. What do you think about this?

Yours,
Linus Walleij

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[PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl and gpio drivers Paul Cercueil <paul@crapouillou.net> - 2017-04-02 22:50 +0200
  Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl  and gpio drivers Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2017-04-03 12:00 +0200
    Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl  and gpio drivers Paul Cercueil <paul@crapouillou.net> - 2017-04-03 12:30 +0200
      Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl  and gpio drivers Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2017-04-03 12:40 +0200
  Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl  and gpio drivers Linus Walleij <linus.walleij@linaro.org> - 2017-04-07 11:50 +0200
    Re: [PATCH v4 06/14] MIPS: jz4740: DTS: Add nodes for ingenic pinctrl  and gpio drivers Paul Cercueil <paul@crapouillou.net> - 2017-04-07 16:10 +0200

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