1Bindings for MAX6651 and MAX6650 I2C fan controllers 2 3Reference: 4[1] https://datasheets.maximintegrated.com/en/ds/MAX6650-MAX6651.pdf 5 6Required properties: 7- compatible : One of "maxim,max6650" or "maxim,max6651" 8- reg : I2C address, one of 0x1b, 0x1f, 0x4b, 0x48. 9 10Optional 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 21Example: 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 }; 29