1*4882a593SmuzhiyunSiRFstar-based GNSS Receiver DT binding 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunSiRFstar chipsets are used in GNSS-receiver modules produced by several 4*4882a593Smuzhiyunvendors and can use UART, SPI or I2C interfaces. 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunPlease see Documentation/devicetree/bindings/gnss/gnss.txt for generic 7*4882a593Smuzhiyunproperties. 8*4882a593Smuzhiyun 9*4882a593SmuzhiyunRequired properties: 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun- compatible : Must be one of 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun "fastrax,uc430" 14*4882a593Smuzhiyun "linx,r4" 15*4882a593Smuzhiyun "wi2wi,w2sg0004" 16*4882a593Smuzhiyun "wi2wi,w2sg0008i" 17*4882a593Smuzhiyun "wi2wi,w2sg0084i" 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun- vcc-supply : Main voltage regulator (pin name: 3V3_IN, VCC, VDD) 20*4882a593Smuzhiyun 21*4882a593SmuzhiyunRequired properties (I2C): 22*4882a593Smuzhiyun- reg : I2C slave address 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunRequired properties (SPI): 25*4882a593Smuzhiyun- reg : SPI chip select address 26*4882a593Smuzhiyun 27*4882a593SmuzhiyunOptional properties: 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun- sirf,onoff-gpios : GPIO used to power on and off device (pin name: ON_OFF) 30*4882a593Smuzhiyun- sirf,wakeup-gpios : GPIO used to determine device power state 31*4882a593Smuzhiyun (pin name: RFPWRUP, WAKEUP) 32*4882a593Smuzhiyun- timepulse-gpios : Time pulse GPIO (pin name: 1PPS, TM) 33*4882a593Smuzhiyun 34*4882a593SmuzhiyunExample: 35*4882a593Smuzhiyun 36*4882a593Smuzhiyunserial@1234 { 37*4882a593Smuzhiyun compatible = "ns16550a"; 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun gnss { 40*4882a593Smuzhiyun compatible = "wi2wi,w2sg0084i"; 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun vcc-supply = <&gnss_reg>; 43*4882a593Smuzhiyun sirf,onoff-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; 44*4882a593Smuzhiyun sirf,wakeup-gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>; 45*4882a593Smuzhiyun }; 46*4882a593Smuzhiyun}; 47