linux-kernel - Re: [PATCH] can: rcar_canfd: Fix controller mode setting for RZ/G2L SoCs

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Message-ID: <20251112-warping-ninja-jaybird-22edde-mkl@pengutronix.de>
Date: Wed, 12 Nov 2025 09:47:19 +0100
From: Marc Kleine-Budde <mkl@...gutronix.de>
To: Biju <biju.das.au@...il.com>
Cc: Vincent Mailhol <mailhol@...nel.org>, 
	Geert Uytterhoeven <geert+renesas@...der.be>, Magnus Damm <magnus.damm@...il.com>, 
	Biju Das <biju.das.jz@...renesas.com>, Tranh Ha <tranh.ha.xb@...esas.com>, 
	Duy Nguyen <duy.nguyen.rh@...esas.com>, linux-can@...r.kernel.org, linux-renesas-soc@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>, 
	stable@...r.kernel.org
Subject: Re: [PATCH] can: rcar_canfd: Fix controller mode setting for RZ/G2L
 SoCs

On 30.10.2025 12:05:04, Biju wrote:
> From: Biju Das <biju.das.jz@...renesas.com>
>
> The commit 5cff263606a1 ("can: rcar_canfd: Fix controller mode setting")
> applies to all SoCs except the RZ/G2L family of SoCs. As per RZ/G2L
> hardware manual "Figure 28.16 CAN Setting Procedure after the MCU is
> Reset" CAN mode needs to be set before channel reset. Add the
> mode_before_ch_rst variable to struct rcar_canfd_hw_info to handle
> this difference.
>
> The above commit also breaks CANFD functionality on RZ/G3E. Adapt this
> change to RZ/G3E, as well as it works ok by following the initialisation
> sequence of RZ/G2L.
>
> Fixes: 5cff263606a1 ("can: rcar_canfd: Fix controller mode setting")
> Cc: stable@...r.kernel.org
> Signed-off-by: Biju Das <biju.das.jz@...renesas.com>

Applied to linux-can.

Thanks,
Marc

-- 
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