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Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wrxxd-00000005rTK-0ZB3; Thu, 06 Aug 2026 13:16:37 +0000 Received: from sea.source.kernel.org ([2600:3c0a:e001:78e:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wrxxb-00000005rTE-1AK4 for linux-arm-kernel@lists.infradead.org; Thu, 06 Aug 2026 13:16:35 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id 97D0B41F96; Thu, 6 Aug 2026 13:16:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 54DAA1F000E9; Thu, 6 Aug 2026 13:16:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1786022194; bh=8O3Jm/KCpUxHmdI56AF1wTxRqOJCMDI/5j9/Q6443Ro=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=OYTTH2YZ95hRG04hyNETNtpBAmuqnutIGsr5526ph4/Spdpox8qylIrZLTN2uJeBJ v6OAiOPKkmABiofnuehJ9uheHaIhy99SVgixWZkBUyUc9/4tmUcXoOIcri5X5/G2YD zj6/fCqjKXrLbJuL7JOHgFKZZKwN9mbs4H9cfEImkJQC4VjC/HiJAaUYyQ+DNouog6 uevVcXkGTmcu/rmvNKUgidInV3RVrEPw8CD7UN9FMBqSMYCT0ZXfCgP2TxMJhjM8ti tdzuY4Lmjf5fOxwo6R3fOk3huIa7nmHtCD0tA4V8JEPvXIpYtdGB2Ql7SLIO3UdBpP MMgcU7pcNIdmA== Date: Thu, 6 Aug 2026 08:16:33 -0500 From: Rob Herring To: Petar Stepanovic Cc: Akhila Kavi , Prasad Bolisetty , Guenter Roeck , Krzysztof Kozlowski , Conor Dooley , Harshit Shah , Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , Tzu-Hao Wei , Karthikeyan Mitran , Jonathan Corbet , Shuah Khan , linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pwm@vger.kernel.org, linux-doc@vger.kernel.org Subject: Re: [PATCH 1/2] dt-bindings: hwmon: add Axiado AX3000 and AX3005 PWM fan controller Message-ID: <20260806131633.GA30560-robh@kernel.org> References: <20260806-axiado-ax3000-pwm-fan-v1-0-f6db4cf2166b@axiado.com> <20260806-axiado-ax3000-pwm-fan-v1-1-f6db4cf2166b@axiado.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260806-axiado-ax3000-pwm-fan-v1-1-f6db4cf2166b@axiado.com> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Aug 06, 2026 at 02:01:29AM -0700, Petar Stepanovic wrote: > Add a Devicetree binding for the PWM fan controller found on the > Axiado AX3000 and AX3005 SoCs. > > The controller measures fan speed using a hardware tachometer block. > Fan speed is controlled through a PWM signal supplied by an external > PWM controller. > > Add a MAINTAINERS entry for the binding. > > Signed-off-by: Petar Stepanovic > --- > .../bindings/hwmon/axiado,ax3000-pwm-fan.yaml | 68 ++++++++++++++++++++++ > MAINTAINERS | 8 +++ > 2 files changed, 76 insertions(+) > > diff --git a/Documentation/devicetree/bindings/hwmon/axiado,ax3000-pwm-fan.yaml b/Documentation/devicetree/bindings/hwmon/axiado,ax3000-pwm-fan.yaml > new file mode 100644 > index 000000000000..a985f49bbdcd > --- /dev/null > +++ b/Documentation/devicetree/bindings/hwmon/axiado,ax3000-pwm-fan.yaml > @@ -0,0 +1,68 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/hwmon/axiado,ax3000-pwm-fan.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Axiado AX3000 and AX3005 PWM Fan Controller > + > +maintainers: > + - Petar Stepanovic > + - Akhila Kavi > + - Prasad Bolisetty > + > +description: > + The Axiado AX3000 and AX3005 fan controllers use a hardware tachometer > + block to measure fan speed. Fan speed is controlled through a PWM signal > + supplied by an external PWM controller. > + > +properties: > + compatible: > + oneOf: > + - const: axiado,ax3000-pwm-fan > + - items: > + - const: axiado,ax3005-pwm-fan > + - const: axiado,ax3000-pwm-fan > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + pwms: > + maxItems: 1 > + description: > + PWM specifier used to control fan speed. > + > + pulses-per-revolution: > + $ref: /schemas/types.yaml#/definitions/uint32 > + minimum: 1 > + default: 2 > + description: > + Number of tachometer pulses generated per fan revolution. This is a property of a fan, not the fan controller. The fan(s) should be represented as child node(s) under this device. Use the common fan binding, fan-common.yaml. See other bindings using it. Rob