netdev - Re: [PATCH v3] dt-bindings: can: renesas,rcar-canfd: Document R-Car V4M support

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Message-ID: <172296471618.1826539.5724224646610844294.robh@kernel.org>
Date: Tue, 6 Aug 2024 11:18:37 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Geert Uytterhoeven <geert+renesas@...der.be>
Cc: Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
	netdev@...r.kernel.org, Marc Kleine-Budde <mkl@...gutronix.de>,
	Vincent Mailhol <mailhol.vincent@...adoo.fr>,
	linux-can@...r.kernel.org, Duy Nguyen <duy.nguyen.rh@...esas.com>,
	Eric Dumazet <edumazet@...gle.com>, devicetree@...r.kernel.org,
	"David S . Miller" <davem@...emloft.net>,
	linux-renesas-soc@...r.kernel.org, Paolo Abeni <pabeni@...hat.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>
Subject: Re: [PATCH v3] dt-bindings: can: renesas,rcar-canfd: Document R-Car
 V4M support


On Thu, 01 Aug 2024 16:03:17 +0200, Geert Uytterhoeven wrote:
> From: Duy Nguyen <duy.nguyen.rh@...esas.com>
> 
> Document support for the CAN-FD Interface on the Renesas R-Car V4M
> (R8A779H0) SoC, which supports up to four channels.
> 
> The CAN-FD module on R-Car V4M is very similar to the one on R-Car V4H,
> but differs in some hardware parameters, as reflected by the Parameter
> Status Information part of the Global IP Version Register.  However,
> none of this parameterization should have any impact on the driver, as
> the driver does not access any register that is impacted by the
> parameterization (except for the number of channels).
> 
> Signed-off-by: Duy Nguyen <duy.nguyen.rh@...esas.com>
> [geert: Clarify R-Car V4M differences]
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> ---
> v3:
>   - Add more clarification,
> 
> v2:
>   - Drop RFC state now it works.
> 
> Changes compared to the BSP:
>   - Restrict number of channels to four.
> ---
>  .../bindings/net/can/renesas,rcar-canfd.yaml  | 22 ++++++++++++++-----
>  1 file changed, 16 insertions(+), 6 deletions(-)
> 

Acked-by: Rob Herring (Arm) <robh@...nel.org>