| |
| * 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@01f03400 { |
| 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>; |
| |
| /* ... */ |
| }; |
| }; |
