1*c66ec88fSEmmanuel Vadot* Silicon Labs FM Radio transmitter 2*c66ec88fSEmmanuel Vadot 3*c66ec88fSEmmanuel VadotThe Silicon Labs Si4713 is an FM radio transmitter with receive power scan 4*c66ec88fSEmmanuel Vadotsupporting 76-108 MHz. It includes an RDS encoder and has both, a stereo-analog 5*c66ec88fSEmmanuel Vadotand a digital interface, which supports I2S, left-justified and a custom 6*c66ec88fSEmmanuel VadotDSP-mode format. It is programmable through an I2C interface. 7*c66ec88fSEmmanuel Vadot 8*c66ec88fSEmmanuel VadotRequired Properties: 9*c66ec88fSEmmanuel Vadot- compatible: Should contain "silabs,si4713" 10*c66ec88fSEmmanuel Vadot- reg: the I2C address of the device 11*c66ec88fSEmmanuel Vadot 12*c66ec88fSEmmanuel VadotOptional Properties: 13*c66ec88fSEmmanuel Vadot- interrupts-extended: Interrupt specifier for the chips interrupt 14*c66ec88fSEmmanuel Vadot- reset-gpios: GPIO specifier for the chips reset line 15*c66ec88fSEmmanuel Vadot- vdd-supply: phandle for Vdd regulator 16*c66ec88fSEmmanuel Vadot- vio-supply: phandle for Vio regulator 17*c66ec88fSEmmanuel Vadot 18*c66ec88fSEmmanuel VadotExample: 19*c66ec88fSEmmanuel Vadot 20*c66ec88fSEmmanuel Vadot&i2c2 { 21*c66ec88fSEmmanuel Vadot fmtx: si4713@63 { 22*c66ec88fSEmmanuel Vadot compatible = "silabs,si4713"; 23*c66ec88fSEmmanuel Vadot reg = <0x63>; 24*c66ec88fSEmmanuel Vadot 25*c66ec88fSEmmanuel Vadot interrupts-extended = <&gpio2 21 IRQ_TYPE_EDGE_FALLING>; /* 53 */ 26*c66ec88fSEmmanuel Vadot reset-gpios = <&gpio6 3 GPIO_ACTIVE_HIGH>; /* 163 */ 27*c66ec88fSEmmanuel Vadot vio-supply = <&vio>; 28*c66ec88fSEmmanuel Vadot vdd-supply = <&vaux1>; 29*c66ec88fSEmmanuel Vadot }; 30*c66ec88fSEmmanuel Vadot}; 31