18c2ecf20Sopenharmony_ci* Silicon Labs FM Radio transmitter 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciThe Silicon Labs Si4713 is an FM radio transmitter with receive power scan 48c2ecf20Sopenharmony_cisupporting 76-108 MHz. It includes an RDS encoder and has both, a stereo-analog 58c2ecf20Sopenharmony_ciand a digital interface, which supports I2S, left-justified and a custom 68c2ecf20Sopenharmony_ciDSP-mode format. It is programmable through an I2C interface. 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ciRequired Properties: 98c2ecf20Sopenharmony_ci- compatible: Should contain "silabs,si4713" 108c2ecf20Sopenharmony_ci- reg: the I2C address of the device 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ciOptional Properties: 138c2ecf20Sopenharmony_ci- interrupts-extended: Interrupt specifier for the chips interrupt 148c2ecf20Sopenharmony_ci- reset-gpios: GPIO specifier for the chips reset line 158c2ecf20Sopenharmony_ci- vdd-supply: phandle for Vdd regulator 168c2ecf20Sopenharmony_ci- vio-supply: phandle for Vio regulator 178c2ecf20Sopenharmony_ci 188c2ecf20Sopenharmony_ciExample: 198c2ecf20Sopenharmony_ci 208c2ecf20Sopenharmony_ci&i2c2 { 218c2ecf20Sopenharmony_ci fmtx: si4713@63 { 228c2ecf20Sopenharmony_ci compatible = "silabs,si4713"; 238c2ecf20Sopenharmony_ci reg = <0x63>; 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_ci interrupts-extended = <&gpio2 21 IRQ_TYPE_EDGE_FALLING>; /* 53 */ 268c2ecf20Sopenharmony_ci reset-gpios = <&gpio6 3 GPIO_ACTIVE_HIGH>; /* 163 */ 278c2ecf20Sopenharmony_ci vio-supply = <&vio>; 288c2ecf20Sopenharmony_ci vdd-supply = <&vaux1>; 298c2ecf20Sopenharmony_ci }; 308c2ecf20Sopenharmony_ci}; 31