linux-kernel - Re: [PATCH v2 2/9] watchdog: rzv2h_wdt: Obtain clock-divider ranges from OF match data

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Message-ID: <aIw8ldw_7PFQVoL9@shikoro>
Date: Fri, 1 Aug 2025 06:03:33 +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 2/9] watchdog: rzv2h_wdt: Obtain clock-divider ranges
 from OF match data

On Tue, Jul 29, 2025 at 04:59:08PM +0100, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> Move the clock division ratio values into OF match data instead of
> hardcoding them in the driver. Introduce `rzv2h_of_data` to hold `cks_min`
> and `cks_max`, populated via the device tree match table. In probe, call
> `of_device_get_match_data()` to retrieve these values for setting up the
> watchdog.
> 
> This refactoring is transparent for existing RZ/V2H(P) usage and
> facilitates adding RZ/T2H support with different divider ranges.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>

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


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