max6650.txt

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    1 Bindings for MAX6651 and MAX6650 I2C fan controllers
    2 
    3 Reference:
    4 [1]     https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf
    5 
    6 Required properties:
    7 - compatible : One of "maxim,max6650" or "maxim,max6651"
    8 - reg        : I2C address, one of 0x1b, 0x1f, 0x4b, 0x48.
    9 
   10 Optional properties, default is to retain the chip's current setting:
   11 - maxim,fan-microvolt : The supply voltage of the fan, either 5000000 uV or
   12                         12000000 uV.
   13 - maxim,fan-prescale  : Pre-scaling value, as per datasheet [1]. Lower values
   14                         allow more fine-grained control of slower fans.
   15                         Valid: 1, 2, 4, 8, 16.
   16 - maxim,fan-target-rpm: Initial requested fan rotation speed. If specified, the
   17                         driver selects closed-loop mode and the requested speed.
   18                         This ensures the fan is already running before userspace
   19                         takes over.
   20 
   21 Example:
   22         fan-max6650: max6650@1b {
   23                 reg = <0x1b>;
   24                 compatible = "maxim,max6650";
   25                 maxim,fan-microvolt = <12000000>;
   26                 maxim,fan-prescale = <4>;
   27                 maxim,fan-target-rpm = <1200>;
   28         };

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sys/contrib/device-tree/Bindings/hwmon/max6650.txt