linux-kernel - Re: [PATCH v7 1/4] dt-bindings: hwmon: fan: Add fan binding to schema

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Date:   Tue, 29 Nov 2022 16:57:19 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Naresh Solanki <naresh.solanki@...ements.com>,
        devicetree@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
        Jean Delvare <jdelvare@...e.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-kernel@...r.kernel.org, linux-hwmon@...r.kernel.org,
        Patrick Rudolph <patrick.rudolph@...ements.com>
Subject: Re: [PATCH v7 1/4] dt-bindings: hwmon: fan: Add fan binding to schema

On 29/11/2022 16:46, Naresh Solanki wrote:
> Hi Krzysztof,
> 
> On 29-11-2022 01:42 pm, Krzysztof Kozlowski wrote:
>> On 21/11/2022 13:29, Naresh Solanki wrote:
>>
>>> +  pulses-per-revolution:
>>> +    description:
>>> +      The number of pulse from fan sensor per revolution.
>>> +    $ref: /schemas/types.yaml#/definitions/uint32
>>> +
>>> +  target-rpm:
>>> +    description:
>>> +      Target RPM the fan should be configured during driver probe.
>>> +    $ref: /schemas/types.yaml#/definitions/uint32
>>> +
>>> +  pwms:
>>> +    description:
>>> +      PWM provider.
>>
>> Ah, so it is not a PWM provider by this FAN controller? A bit confusing
>> description. Instead maybe:
>> 	PWM signal for the fan
> Sure.
>>
>> and do you expect more than one PWM for one fan?
> One pwm per fan

then:
  maxItems: 1

Best regards,
Krzysztof