linux-kernel - Re: [PATCH 3/8] dt-bindings: watchdog: Add AAEON embedded controller watchdog binding

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Message-ID: <CAD++jLmKL4afaOn_eka6v=j_Wu0orZMb-2NbPZgP4SM2q4V7qw@mail.gmail.com>
Date: Wed, 31 Dec 2025 22:50:55 +0100
From: Linus Walleij <linusw@...nel.org>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: "Thomas Perrot (Schneider Electric)" <thomas.perrot@...tlin.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Bartosz Golaszewski <brgl@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
	Fabio Estevam <festevam@...il.com>, 
	Jérémie Dautheribes <jeremie.dautheribes@...tlin.com>, 
	Wim Van Sebroeck <wim@...ux-watchdog.org>, Guenter Roeck <linux@...ck-us.net>, Lee Jones <lee@...nel.org>, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-gpio@...r.kernel.org, imx@...ts.linux.dev, 
	linux-arm-kernel@...ts.infradead.org, linux-watchdog@...r.kernel.org, 
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 3/8] dt-bindings: watchdog: Add AAEON embedded controller
 watchdog binding

On Fri, Dec 12, 2025 at 9:20 AM Krzysztof Kozlowski <krzk@...nel.org> wrote:
> On 12/12/2025 08:41, Thomas Perrot (Schneider Electric) wrote:
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    watchdog {
> > +      compatible = "aaeon,srg-imx8pl-wdt";
>
> No, that was discussed many times on the mailing list already. Fold the
> child into the parent. Your driver model really do not matter for DT.

True. For an example in Linux check how I spawn a watchdog
platform device from a timer node in:
drivers/clocksource/timer-ixp4xx.c

It's just one node in the device tree, in Linux it is in two different
subsystems but we just deal with that in code.

Yours,
Linus Walleij