* Device tree bindings for Nokia Retu and Tahvo multi-function device Retu and Tahvo are a multi-function devices found on Nokia Internet Tablets (770, N800 and N810). The Retu chip provides watchdog timer and power button control functionalities while Tahvo chip provides USB transceiver functionality. Required properties: - compatible: "nokia,retu" or "nokia,tahvo" - reg: Specifies the CBUS slave address of the ASIC chip - interrupts: The interrupt line the device is connected to - interrupt-parent: The parent interrupt controller Example: cbus0 { compatible = "i2c-cbus-gpio"; ... retu: retu@1 { compatible = "nokia,retu"; interrupt-parent = <&gpio4>; interrupts = <12 IRQ_TYPE_EDGE_RISING>; reg = <0x1>; }; };