| * Allwinner P2WI (Push/Pull 2 Wire Interface) controller | |
| Required properties : | |
| - reg : Offset and length of the register set for the device. | |
| - compatible : Should one of the following: | |
| - "allwinner,sun6i-a31-p2wi" | |
| - interrupts : The interrupt line connected to the P2WI peripheral. | |
| - clocks : The gate clk connected to the P2WI peripheral. | |
| - resets : The reset line connected to the P2WI peripheral. | |
| Optional properties : | |
| - clock-frequency : Desired P2WI bus clock frequency in Hz. If not set the | |
| default frequency is 100kHz | |
| A P2WI may contain one child node encoding a P2WI slave device. | |
| Slave device properties: | |
| Required properties: | |
| - reg : the I2C slave address used during the initialization | |
| process to switch from I2C to P2WI mode | |
| Example: | |
| p2wi@1f03400 { | |
| compatible = "allwinner,sun6i-a31-p2wi"; | |
| reg = <0x01f03400 0x400>; | |
| interrupts = <0 39 4>; | |
| clocks = <&apb0_gates 3>; | |
| clock-frequency = <6000000>; | |
| resets = <&apb0_rst 3>; | |
| axp221: pmic@68 { | |
| compatible = "x-powers,axp221"; | |
| reg = <0x68>; | |
| /* ... */ | |
| }; | |
| }; |