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dt-bindings: hwmon: amc6821: Add cooling levels

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The fan can be used as a cooling device, add a description of the
`cooling-levels` property and restrict the maximum value to 255, which
is the highest PWM duty cycle supported by the AMC6821 fan controller.

Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250613-b4-amc6821-cooling-device-support-v4-1-a8fc063c55de@toradex.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
João Paulo Gonçalves
2025-06-13 10:42:38 -03:00
committed by Guenter Roeck
parent 36b0fef0b5
commit f2a32ed869
1 changed files with 6 additions and 0 deletions
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6
Documentation/devicetree/bindings/hwmon/ti,amc6821.yaml
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@@ -32,6 +32,12 @@ properties:
$ref: fan-common.yaml#
unevaluatedProperties: false
properties:
cooling-levels:
description: PWM duty cycle values corresponding to thermal cooling states.
items:
maximum: 255
"#pwm-cells":
const: 2
description: |