linux-kernel - Re: [PATCH net-next 05/11] net: dsa: rzn1-a5psw: Add support for optional reset control

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Message-ID: <951c27938acfb23e7af29603043143744f702808.camel@pengutronix.de>
Date: Fri, 21 Nov 2025 12:43:05 +0100
From: Philipp Zabel <p.zabel@...gutronix.de>
To: Prabhakar <prabhakar.csengg@...il.com>, 
 Clément Léger	 <clement.leger@...tlin.com>, Andrew
 Lunn <andrew@...n.ch>, Vladimir Oltean	 <olteanv@...il.com>, "David S.
 Miller" <davem@...emloft.net>, Eric Dumazet	 <edumazet@...gle.com>, Jakub
 Kicinski <kuba@...nel.org>, Paolo Abeni	 <pabeni@...hat.com>, Rob Herring
 <robh@...nel.org>, Krzysztof Kozlowski	 <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Simon Horman	 <horms@...nel.org>, Russell King
 <linux@...linux.org.uk>, Geert Uytterhoeven	 <geert+renesas@...der.be>,
 Magnus Damm <magnus.damm@...il.com>
Cc: linux-renesas-soc@...r.kernel.org, netdev@...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>,  Lad Prabhakar
 <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH net-next 05/11] net: dsa: rzn1-a5psw: Add support for
 optional reset control

On Fr, 2025-11-21 at 11:35 +0000, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> Add support for an optional reset control to the RZN1 A5PSW driver.
> Obtain the reset line using
> devm_reset_control_get_optional_exclusive_deasserted() during probe
> to ensure that the Ethernet switch (ETHSW) block is properly released
> from reset before initialization.
> 
> This change prepares the driver for use on Renesas RZ/T2H and RZ/N2H
> SoCs, where the ETHSW IP block is connected to a dedicated reset line
> that must be controlled by software.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp