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hwmon: (max6650) Add devicetree support documentation

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

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Mike Looijmans 2016-08-22 08:44:32 +02:00 committed by Guenter Roeck
parent d5f3f6c812
commit 88de8e1d43
1 changed files with 23 additions and 0 deletions
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Documentation/devicetree/bindings/hwmon/max6650.txt Normal file
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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>;
};