| 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. |
| - maxim,fan-target-rpm: Initial requested fan rotation speed. If specified, the |
| driver selects closed-loop mode and the requested speed. |
| This ensures the fan is already running before userspace |
| takes over. |
| |
| Example: |
| fan-max6650: max6650@1b { |
| reg = <0x1b>; |
| compatible = "maxim,max6650"; |
| maxim,fan-microvolt = <12000000>; |
| maxim,fan-prescale = <4>; |
| maxim,fan-target-rpm = <1200>; |
| }; |
