linux-kernel - Re: [PATCH 05/13] arm64: dts: renesas: r9a09g077m44-rzt2h-evk: Add user LEDs

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Message-ID: <CAMuHMdXTrhOg9EQ+WPqHzQKssJ32BAV2GM0vO_1iKXDD63V5LQ@mail.gmail.com>
Date: Mon, 18 Aug 2025 15:43:15 +0200
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
Cc: Magnus Damm <magnus.damm@...il.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	linux-renesas-soc@...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>, 
	Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH 05/13] arm64: dts: renesas: r9a09g077m44-rzt2h-evk: Add
 user LEDs

Hi Prabhakar,

On Mon, 18 Aug 2025 at 15:40, Lad, Prabhakar <prabhakar.csengg@...il.com> wrote:
> On Mon, Aug 18, 2025 at 2:15 PM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
> > On Tue, 12 Aug 2025 at 22:03, Prabhakar <prabhakar.csengg@...il.com> wrote:
> > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > >
> > > Add USER LED0-LED8, which are available on RZ/T2H EVK.
> >
> > According to the schematics, only the first four are user LEDs?
> >
> As per [0] user manual Table 7-4, LEDs4-8 can be used as USER LEDs or
> for Ethercat Slave. Since ESC is not enabled I haven't added any
> #ifdefs.

OK

> [0] https://www.renesas.com/en/document/mat/rzt2h-evaluation-board-kit-users-manual?r=25567073
>
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> >
> > > --- a/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts
> > > +++ b/arch/arm64/boot/dts/renesas/r9a09g077m44-rzt2h-evk.dts

> Perhaps I'll have LED_FUNCTION_DEBUG for LEDs4-8 as currently they are
> used as USER LEDs and  function-enumerator = 4/5/6/7?

That sounds fine, thanks!

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

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