linux-kernel - Re: [PATCH v12 1/3] dt-bindings: hwmon: fan: Add fan binding to schema

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Date: Mon, 15 Jan 2024 10:25:49 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Billy Tsai <billy_tsai@...eedtech.com>, jdelvare@...e.com,
 linux@...ck-us.net, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 joel@....id.au, andrew@...id.au, corbet@....net, thierry.reding@...il.com,
 u.kleine-koenig@...gutronix.de, p.zabel@...gutronix.de,
 naresh.solanki@...ements.com, 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,
 linux-doc@...r.kernel.org, linux-pwm@...r.kernel.org, BMC-SW@...eedtech.com,
 patrick@...cx.xyz
Subject: Re: [PATCH v12 1/3] dt-bindings: hwmon: fan: Add fan binding to
 schema

On 08/01/2024 08:43, Billy Tsai wrote:
> +  pwms:
> +    description:
> +      PWM provider.
> +    maxItems: 1
> +
> +  "#cooling-cells":
> +    const: 2
> +
> +  cooling-levels:
> +    description:
> +      The control value which correspond to thermal cooling states.
> +    $ref: /schemas/types.yaml#/definitions/uint32-array
> +
> +  tach-ch:
> +    description:
> +      The tach channel used for the fan.
> +    $ref: /schemas/types.yaml#/definitions/uint8-array

What is the tach-channel and why is it different from pwm specifier?

Best regards,
Krzysztof