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References: <20240315103033.141226-1-prabhakar.mahadev-lad.rj@bp.renesas.com> <20240315103033.141226-2-prabhakar.mahadev-lad.rj@bp.renesas.com>
In-Reply-To: <20240315103033.141226-2-prabhakar.mahadev-lad.rj@bp.renesas.com>
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 15 Mar 2024 13:50:18 +0100
Message-ID: <CAMuHMdW_WBaGjYmU_RnMnq2T7PeEafAZqyP9Md9g0VUKzgrecQ@mail.gmail.com>
Subject: Re: [PATCH v2 1/4] dt-bindings: i2c: renesas,riic: Document R9A09G057 support
To: Prabhakar <prabhakar.csengg@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>, Andi Shyti <andi.shyti@kernel.org>, 
	Rob Herring <robh+dt@kernel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, Conor Dooley <conor+dt@kernel.org>, 
	Magnus Damm <magnus.damm@gmail.com>, Wolfram Sang <wsa+renesas@sang-engineering.com>, 
	linux-renesas-soc@vger.kernel.org, linux-i2c@vger.kernel.org, 
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, 
	Fabrizio Castro <fabrizio.castro.jz@renesas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
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On Fri, Mar 15, 2024 at 11:31=E2=80=AFAM Prabhakar <prabhakar.csengg@gmail.=
com> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
>
> Document support for the I2C Bus Interface (RIIC) available in the
> Renesas RZ/V2H(P) (R9A09G057) SoC.
>
> The RIIC interface in the Renesas RZ/V2H(P) differs from RZ/A in a
> couple of ways:
> - Register offsets for the RZ/V2H(P) SoC differ from those of the
>   RZ/A SoC.
> - RZ/V2H register access is limited to 8-bit, whereas RZ/A supports
>   8/16/32-bit.
> - RZ/V2H has bit differences in the slave address register.
>
> To accommodate these differences in the existing driver, a new compatible
> string "renesas,riic-r9a09g057" is added.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> ---
> v1->v2
> - Used a const for V2H SoC instead of enum in items list

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

Gr{oetje,eeting}s,

                        Geert


--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k=
org

In personal conversations with technical people, I call myself a hacker. Bu=
t
when I'm talking to journalists I just say "programmer" or something like t=
hat.
                                -- Linus Torvalds