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Commit 88de8e1d authored by Mike Looijmans's avatar Mike Looijmans Committed by Guenter Roeck
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hwmon: (max6650) Add devicetree support documentation 



This adds the devicetree binding documentation for the max6650 fan
controller.

Signed-off-by: default avatarMike Looijmans <mike.looijmans@topic.nl>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent d5f3f6c8

Documentation/devicetree/bindings/hwmon/max6650.txt

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Bindings for MAX6651 and MAX6650 I2C fan controllers



Reference:

[1]	https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf



Required properties:

- compatible : One of "maxim,max6650" or "maxim,max6651"

- reg        : I2C address, one of 0x1b, 0x1f, 0x4b, 0x48.



Optional properties, default is to retain the chip's current setting:

- maxim,fan-microvolt : The supply voltage of the fan, either 5000000 uV or

			12000000 uV.

- maxim,fan-prescale  : Pre-scaling value, as per datasheet [1]. Lower values

			allow more fine-grained control of slower fans.

			Valid: 1, 2, 4, 8, 16.



Example:

	fan-max6650: max6650@1b {

		reg = <0x1b>;

		compatible = "maxim,max6650";

		maxim,fan-microvolt = <12000000>;

		maxim,fan-prescale = <4>;

	};