linux-kernel - Re: [PATCH] pinctrl: renesas: rzg2l: Limit 2.5V power supply to Ethernet interfaces

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Date: Wed, 24 Apr 2024 15:24:38 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Paul Barker <paul.barker.ct@...renesas.com>
Cc: Linus Walleij <linus.walleij@...aro.org>, 
	Claudiu Beznea <claudiu.beznea.uj@...renesas.com>, linux-renesas-soc@...r.kernel.org, 
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pinctrl: renesas: rzg2l: Limit 2.5V power supply to
 Ethernet interfaces

On Wed, Apr 24, 2024 at 3:24 PM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> On Wed, Apr 17, 2024 at 1:41 PM Paul Barker
> <paul.barker.ct@...renesas.com> wrote:
> > The RZ/G3S SoC supports configurable supply voltages for several of its
> > I/O interfaces. All of these interfaces support both 1.8V and 3.3V
> > supplies, but only the Ethernet and XSPI interfaces support a 2.5V
> > supply.
> >
> > Voltage selection for the XSPI interface is not yet supported, so this
> > leaves only the Ethernet interfaces currently supporting selection of a
> > 2.5V supply. So we need to return an error if there is an attempt to
> > select a 2.5V supply for any non-Ethernet interface.
> >
> > Fixes: 51996952b8b5 ("pinctrl: renesas: rzg2l: Add support to select power source for Ethernet pins")
> > Signed-off-by: Paul Barker <paul.barker.ct@...renesas.com>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
> i.e. will queue in renesas-clk for v6.10.

renesas-pinctrl, of course ;-)

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68korg

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds