162306a36Sopenharmony_ci* Silicon Labs FM Radio transmitter 262306a36Sopenharmony_ci 362306a36Sopenharmony_ciThe Silicon Labs Si4713 is an FM radio transmitter with receive power scan 462306a36Sopenharmony_cisupporting 76-108 MHz. It includes an RDS encoder and has both, a stereo-analog 562306a36Sopenharmony_ciand a digital interface, which supports I2S, left-justified and a custom 662306a36Sopenharmony_ciDSP-mode format. It is programmable through an I2C interface. 762306a36Sopenharmony_ci 862306a36Sopenharmony_ciRequired Properties: 962306a36Sopenharmony_ci- compatible: Should contain "silabs,si4713" 1062306a36Sopenharmony_ci- reg: the I2C address of the device 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_ciOptional Properties: 1362306a36Sopenharmony_ci- interrupts-extended: Interrupt specifier for the chips interrupt 1462306a36Sopenharmony_ci- reset-gpios: GPIO specifier for the chips reset line 1562306a36Sopenharmony_ci- vdd-supply: phandle for Vdd regulator 1662306a36Sopenharmony_ci- vio-supply: phandle for Vio regulator 1762306a36Sopenharmony_ci 1862306a36Sopenharmony_ciExample: 1962306a36Sopenharmony_ci 2062306a36Sopenharmony_ci&i2c2 { 2162306a36Sopenharmony_ci fmtx: si4713@63 { 2262306a36Sopenharmony_ci compatible = "silabs,si4713"; 2362306a36Sopenharmony_ci reg = <0x63>; 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci interrupts-extended = <&gpio2 21 IRQ_TYPE_EDGE_FALLING>; /* 53 */ 2662306a36Sopenharmony_ci reset-gpios = <&gpio6 3 GPIO_ACTIVE_HIGH>; /* 163 */ 2762306a36Sopenharmony_ci vio-supply = <&vio>; 2862306a36Sopenharmony_ci vdd-supply = <&vaux1>; 2962306a36Sopenharmony_ci }; 3062306a36Sopenharmony_ci}; 31