1*4882a593Smuzhiyun* Device tree bindings for Nokia Retu and Tahvo multi-function device 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunRetu and Tahvo are a multi-function devices found on Nokia Internet 4*4882a593SmuzhiyunTablets (770, N800 and N810). The Retu chip provides watchdog timer 5*4882a593Smuzhiyunand power button control functionalities while Tahvo chip provides 6*4882a593SmuzhiyunUSB transceiver functionality. 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunRequired properties: 9*4882a593Smuzhiyun- compatible: "nokia,retu" or "nokia,tahvo" 10*4882a593Smuzhiyun- reg: Specifies the CBUS slave address of the ASIC chip 11*4882a593Smuzhiyun- interrupts: The interrupt line the device is connected to 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunExample: 14*4882a593Smuzhiyun 15*4882a593Smuzhiyuncbus0 { 16*4882a593Smuzhiyun compatible = "i2c-cbus-gpio"; 17*4882a593Smuzhiyun ... 18*4882a593Smuzhiyun retu: retu@1 { 19*4882a593Smuzhiyun compatible = "nokia,retu"; 20*4882a593Smuzhiyun interrupt-parent = <&gpio4>; 21*4882a593Smuzhiyun interrupts = <12 IRQ_TYPE_EDGE_RISING>; 22*4882a593Smuzhiyun reg = <0x1>; 23*4882a593Smuzhiyun }; 24*4882a593Smuzhiyun}; 25