sirfstar.txt

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

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sys/contrib/device-tree/Bindings/gnss/sirfstar.txt