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

[Leonard Crestez <leonard.crestez@nxp.com>]

On Tue, 2018-10-02 at 21:56 +0200, Linus Walleij wrote:
> On Tue, Oct 2, 2018 at 8:37 PM Leonard Crestez <
> leonard.crestez@nxp.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.

Maybe you could document in fixed-regulator bindings that it now
supports the standard "gpios" property as well? There still seems to be
a restriction that the list must contain a single element.

Anyway, what my patch fixes is a board-specific issue which exists even
outside your patch: the enet phy regulator never worked as expected.

--
Regards,
Leonard