linux-kernel - Re: [PATCH v2 5/9] watchdog: rzv2h_wdt: Add support for configurable count clock source

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Message-ID: <aIw81PmMx-vKAlak@shikoro>
Date: Fri, 1 Aug 2025 06:04:36 +0200
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Prabhakar <prabhakar.csengg@...il.com>
Cc: Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <magnus.damm@...il.com>, linux-watchdog@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-renesas-soc@...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 v2 5/9] watchdog: rzv2h_wdt: Add support for configurable
 count clock source

On Tue, Jul 29, 2025 at 04:59:11PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> Add support for selecting the count clock source used by the watchdog
> timer. The RZ/V2H(P) SoC uses the LOCO as the count source, whereas on
> RZ/T2H and RZ/N2H SoCs, the count source is the peripheral clock (PCLKL).
> 
> Introduce a `count_source` field in the SoC-specific data structure and
> refactor the clock rate selection logic accordingly. This prepares the
> driver for supporting the RZ/T2H and RZ/N2H SoCs, which differ in their
> watchdog clocking architecture from RZ/V2H(P).
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

Reviewed-by: Wolfram Sang <wsa+renesas@...g-engineering.com>


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