| Austrian Microsystems AS3935 Franklin lightning sensor device driver |
| |
| Required properties: |
| - compatible: must be "ams,as3935" |
| - reg: SPI chip select number for the device |
| - spi-max-frequency: specifies maximum SPI clock frequency |
| - spi-cpha: SPI Mode 1. Refer to spi/spi-bus.txt for generic SPI |
| slave node bindings. |
| - interrupt-parent : should be the phandle for the interrupt controller |
| - interrupts : the sole interrupt generated by the device |
| |
| Refer to interrupt-controller/interrupts.txt for generic |
| interrupt client node bindings. |
| |
| Optional properties: |
| - ams,tuning-capacitor-pf: Calibration tuning capacitor stepping |
| value 0 - 120pF. This will require using the calibration data from |
| the manufacturer. |
| - ams,nflwdth: Set the noise and watchdog threshold register on |
| startup. This will need to set according to the noise from the |
| MCU board, and possibly the local environment. Refer to the |
| datasheet for the threshold settings. |
| |
| Example: |
| |
| as3935@0 { |
| compatible = "ams,as3935"; |
| reg = <0>; |
| spi-max-frequency = <400000>; |
| spi-cpha; |
| interrupt-parent = <&gpio1>; |
| interrupts = <16 1>; |
| ams,tuning-capacitor-pf = <80>; |
| ams,nflwdth = <0x44>; |
| }; |
