linux-kernel - Re: [PATCH RFC 01/16] dt-bindings: hwmon: Convert aspeed,ast2400-pwm-tacho to DT schema

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Message-ID: <d6046a94820cda6bfcc3953d6c737152a9f0cf37.camel@codeconstruct.com.au>
Date: Thu, 18 Dec 2025 08:30:51 +1030
From: Andrew Jeffery <andrew@...econstruct.com.au>
To: Rob Herring <robh@...nel.org>
Cc: Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>,  Linus Walleij <linusw@...nel.org>, Joel Stanley
 <joel@....id.au>, linux-hwmon@...r.kernel.org, 	devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, 	linux-aspeed@...ts.ozlabs.org,
 linux-kernel@...r.kernel.org, 	openbmc@...ts.ozlabs.org,
 linux-gpio@...r.kernel.org, linux-mmc@...r.kernel.org, 
	linux-crypto@...r.kernel.org, linux-iio@...r.kernel.org
Subject: Re: [PATCH RFC 01/16] dt-bindings: hwmon: Convert
 aspeed,ast2400-pwm-tacho to DT schema

On Wed, 2025-12-17 at 09:37 -0600, Rob Herring wrote:
> On Thu, Dec 11, 2025 at 2:46 AM Andrew Jeffery
> <andrew@...econstruct.com.au> wrote:
> > 
> > From: "Rob Herring (Arm)" <robh@...nel.org>
> > 
> > Convert the ASpeed fan controller binding to DT schema format.
> > 
> > The '#cooling-cells' value used is 1 rather than 2. '#size-cells' is 0
> > rather 1.
> 
> Okay, I can't figure out why I thought '#cooling-cells' needed to be 1
> here. I don't see that anywhere in the tree. The driver for sure only
> supports 2, so anything that's not is an error in any case.

Yeah, I'd started doing some digging to understand your statement about
it needing to be 1 but hadn't got to the bottom of it.

If it can be 2 then great, I can fix up the #size-cells and resend.

Andrew