linux-kernel - Re: [PATCH v2 05/13] pinctrl: renesas: pinctrl-rzg2l: Validate power registers for SD and ETH

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Message-ID: <CAMuHMdXhkWgy1bJtfzFXWNUXHLJfMA-tXcMRYtR7GfaejoD+ig@mail.gmail.com>
Date: Wed, 22 May 2024 13:53:04 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Prabhakar <prabhakar.csengg@...il.com>
Cc: Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Magnus Damm <magnus.damm@...il.com>, linux-renesas-soc@...r.kernel.org, 
	linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v2 05/13] pinctrl: renesas: pinctrl-rzg2l: Validate power
 registers for SD and ETH

On Tue, Apr 23, 2024 at 7:59 PM Prabhakar <prabhakar.csengg@...il.com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> On RZ/V2H(P) SoC, the power registers for SD and ETH do not exist,
> resulting in invalid register offsets. Ensure that the register offsets
> are valid before any read/write operations are performed. If the power
> registers are not available, both SD and ETH will be set to '0'.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> ---
> RFC->v2
> - Update check to != 0 instead of -EINVAL

Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>

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