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authorJohan Hovold <johan@kernel.org>2018-06-01 10:22:57 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-06-28 20:32:51 +0900
commit176193b7dd6ebcb4bb843f7b08663aeeabbdeacc (patch)
tree073d930ba673534baae31348326138bc9fedef4e
parent1ad69f10e3a58db60210f2869d5afddb40714507 (diff)
downloadlinux-176193b7dd6ebcb4bb843f7b08663aeeabbdeacc.tar.gz
dt-bindings: gnss: add sirfstar binding
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 vary slightly, as do some recommended timings. Note that the wakeup gpio is not intended to be used as a wakeup source, but rather to detect the current power state of the device (active or hibernate). Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--Documentation/devicetree/bindings/gnss/sirfstar.txt45
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.txt2
-rw-r--r--Documentation/devicetree/bindings/vendor-prefixes.txt.rej10
3 files changed, 57 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gnss/sirfstar.txt b/Documentation/devicetree/bindings/gnss/sirfstar.txt
new file mode 100644
index 000000000000..648d183cdb77
--- /dev/null
+++ b/Documentation/devicetree/bindings/gnss/sirfstar.txt
@@ -0,0 +1,45 @@
+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 (pin name: 3V3_IN, VCC, VDD)
+
+Required properties (I2C):
+- reg : I2C slave address
+
+Required properties (SPI):
+- reg : SPI chip select address
+
+Optional properties:
+
+- sirf,onoff-gpios : GPIO used to power on and off device (pin name: ON_OFF)
+- sirf,wakeup-gpios : GPIO used to determine device power state
+ (pin name: RFPWRUP, WAKEUP)
+- timepulse-gpios : Time pulse GPIO (pin name: 1PPS, TM)
+
+Example:
+
+serial@1234 {
+ compatible = "ns16550a";
+
+ gnss {
+ compatible = "wi2wi,w2sg0084i";
+
+ vcc-supply = <&gnss_reg>;
+ sirf,onoff-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
+ sirf,wakeup-gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 4f61ca1b38e4..c1a15cccb404 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -124,6 +124,7 @@ 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
@@ -203,6 +204,7 @@ licheepi Lichee Pi
linaro Linaro Limited
linksys Belkin International, Inc. (Linksys)
linux Linux-specific binding
+linx Linx Technologies
lltc Linear Technology Corporation
logicpd Logic PD, Inc.
lsi LSI Corp. (LSI Logic)
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt.rej b/Documentation/devicetree/bindings/vendor-prefixes.txt.rej
new file mode 100644
index 000000000000..a32acd9ce2b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt.rej
@@ -0,0 +1,10 @@
+--- Documentation/devicetree/bindings/vendor-prefixes.txt
++++ Documentation/devicetree/bindings/vendor-prefixes.txt
+@@ -395,6 +397,7 @@ vot Vision Optical Technology Co., Ltd.
+ wd Western Digital Corp.
+ wetek WeTek Electronics, limited.
+ wexler Wexler
++wi2wi Wi2Wi, Inc.
+ winbond Winbond Electronics corp.
+ winstar Winstar Display Corp.
+ wlf Wolfson Microelectronics