2 * Allwinner P2WI (Push/Pull 2 Wire Interface) controller
6 - reg : Offset and length of the register set for the device.
7 - compatible : Should one of the following:
8 - "allwinner,sun6i-a31-p2wi"
9 - interrupts : The interrupt line connected to the P2WI peripheral.
10 - clocks : The gate clk connected to the P2WI peripheral.
11 - resets : The reset line connected to the P2WI peripheral.
15 - clock-frequency : Desired P2WI bus clock frequency in Hz. If not set the
16 default frequency is 100kHz
18 A P2WI may contain one child node encoding a P2WI slave device.
20 Slave device properties:
22 - reg : the I2C slave address used during the initialization
23 process to switch from I2C to P2WI mode
28 compatible = "allwinner,sun6i-a31-p2wi";
29 reg = <0x01f03400 0x400>;
30 interrupts = <0 39 4>;
31 clocks = <&apb0_gates 3>;
32 clock-frequency = <6000000>;
33 resets = <&apb0_rst 3>;
36 compatible = "x-powers,axp221";