linux-kernel - Re: [PATCH] ARM: dts: imx6sx-sdb: Fix enet phy regulator

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Date:   Tue, 2 Oct 2018 21:56:39 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Leonard Crestez <leonard.crestez@....com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Fabio Estevam <fabio.estevam@....com>,
        Andy Duan <fugang.duan@....com>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        NXP Linux Team <linux-imx@....com>,
        Sascha Hauer <kernel@...gutronix.de>
Subject: Re: [PATCH] ARM: dts: imx6sx-sdb: Fix enet phy regulator

On Tue, Oct 2, 2018 at 8:37 PM Leonard Crestez <leonard.crestez@....com> wrote:

> This issue was exposed by commit efdfeb079cc3 ("regulator: fixed:
> Convert to use GPIO descriptor only") which causes the "gpios" property
> to also be parsed. Before that commit the "gpios" property had no
> effect and PHY reset was only handled in the bootloader.

Wow that was a very interesting one.
Turning over these stones sometimes expose the weirdest
things.

This is one of the reasons why we need formal validation of
DTS files: things look OK to the human eye and get merged
but they are just syntactically wrong.

I guess I could hack to make "gpios" be ignored by the
regulator GPIO quirks in gpiolib, but I take it you probably
prefer to fix up the real issue like this.

Anyways, good job!
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij