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Message-ID: <171070544995.2123048.6901771529313923395.robh@kernel.org>
Date: Sun, 17 Mar 2024 13:57:31 -0600
From: Rob Herring <robh@...nel.org>
To: Prabhakar <prabhakar.csengg@...il.com>
Cc: Geert Uytterhoeven <geert+renesas@...der.be>,
Chris Brandt <chris.brandt@...esas.com>,
Andi Shyti <andi.shyti@...nel.org>,
linux-renesas-soc@...r.kernel.org,
Magnus Damm <magnus.damm@...il.com>, devicetree@...r.kernel.org,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
Conor Dooley <conor+dt@...nel.org>, linux-kernel@...r.kernel.org,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Wolfram Sang <wsa+renesas@...g-engineering.com>,
Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
Rob Herring <robh+dt@...nel.org>, linux-i2c@...r.kernel.org
Subject: Re: [PATCH v2 1/4] dt-bindings: i2c: renesas,riic: Document
R9A09G057 support
On Fri, 15 Mar 2024 10:30:30 +0000, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...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@...renesas.com>
> ---
> v1->v2
> - Used a const for V2H SoC instead of enum in items list
> ---
> .../devicetree/bindings/i2c/renesas,riic.yaml | 19 +++++++++++--------
> 1 file changed, 11 insertions(+), 8 deletions(-)
>
Acked-by: Rob Herring <robh@...nel.org>
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