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    Subject[PATCH 6/7] dt-bindings: gnss: add sirfstar binding
    Date
    Add binding for SiRFstar-based GNSS receivers.

    Note that while four compatible-strings are initially added representing
    devices which differ in which I/O interfaces they support, they
    otherwise essentially share the same feature set.

    Pin and supply names (and some recommended timings) vary slightly, but
    the binding recommends using a common set of names.

    Note that the wakeup gpio is not intended to be as a wakeup source, but
    rather to detect the current power state of the device (active or
    hibernate).

    Signed-off-by: Johan Hovold <johan@kernel.org>
    ---
    .../devicetree/bindings/gnss/sirfstar.txt | 38 +++++++++++++++++++
    .../devicetree/bindings/vendor-prefixes.txt | 3 ++
    2 files changed, 41 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/gnss/sirfstar.txt

    diff --git a/Documentation/devicetree/bindings/gnss/sirfstar.txt b/Documentation/devicetree/bindings/gnss/sirfstar.txt
    new file mode 100644
    index 000000000000..5e6a02aec49a
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/gnss/sirfstar.txt
    @@ -0,0 +1,38 @@
    +SiRFstar-based GNSS Receiver DT binding
    +
    +SiRFstar chipsets are used in GNSS-receiver modules produced by several
    +vendors and can use UART, SPI or I2C interfaces.
    +
    +Please see Documentation/devicetree/bindings/gnss/gnss.txt for generic
    +properties.
    +
    +Required Properties:
    +
    +- compatible : Must be one of
    +
    + "fastrax,uc430"
    + "linx,r4"
    + "wi2wi,w2sg0008i"
    + "wi2wi,w2sg0084i"
    +
    +- vcc-supply : Main voltage regulator (3V3_IN, VDD, VCC)
    +
    +Optional Properties:
    +
    +- enable-gpios : GPIO used to power on and off device (ON_OFF)
    +- wakeup-gpios : GPIO used to determine device power state (WAKEUP, RFPWRUP)
    +- timepulse-gpios : Timepulse (e.g 1PPS) GPIO (1PPS, TM)
    +
    +Example:
    +
    +serial@1234 {
    + compatible = "ns16550a";
    +
    + gnss {
    + compatible = "wi2wi,w2sg0084i";
    +
    + vcc-supply = <&gnss_reg>;
    + enable-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
    + wakeup-gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>;
    + };
    +};
    diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
    index 2128dfdf73f1..ddd81c82082d 100644
    --- a/Documentation/devicetree/bindings/vendor-prefixes.txt
    +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
    @@ -120,6 +120,7 @@ excito Excito
    ezchip EZchip Semiconductor
    fairphone Fairphone B.V.
    faraday Faraday Technology Corporation
    +fastrax Fastrax Oy
    fcs Fairchild Semiconductor
    firefly Firefly
    focaltech FocalTech Systems Co.,Ltd
    @@ -197,6 +198,7 @@ licheepi Lichee Pi
    linaro Linaro Limited
    linksys Belkin International, Inc. (Linksys)
    linux Linux-specific binding
    +linx Linx Technologies
    lltc Linear Technology Corporation
    lsi LSI Corp. (LSI Logic)
    lwn Liebherr-Werk Nenzing GmbH
    @@ -390,6 +392,7 @@ vivante Vivante Corporation
    vocore VoCore Studio
    voipac Voipac Technologies s.r.o.
    vot Vision Optical Technology Co., Ltd.
    +wi2wi Wi2Wi
    wd Western Digital Corp.
    wetek WeTek Electronics, limited.
    wexler Wexler
    --
    2.17.0
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