Merge tag 'gnss-5.1-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss into char-misc-next

Johan writes:

GNSS updates for 5.1-rc1

Here are the GNSS updates for 5.1-rc1, including:

 - a new driver for Mediatek-based receivers
 - support for SiRF receivers without a wakeup signal
 - support for a separate LNA supply for SiRF receivers

Included are also various clean ups and minor fixes.

All have been in linux-next with no reported issues.

Signed-off-by: Johan Hovold <johan@kernel.org>

* tag 'gnss-5.1-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/johan/gnss:
  gnss: add driver for mediatek receivers
  gnss: add mtk receiver type support
  dt-bindings: gnss: add mediatek binding
  dt-bindings: Add vendor prefix for "GlobalTop Technology, Inc."
  dt-bindings: gnss: add lna-supply property
  gnss: sirf: add a separate supply for a lna
  dt-bindings: gnss: add w2sg0004 compatible string
  gnss: sirf: add support for configurations without wakeup signal
  gnss: sirf: write data to gnss only when the gnss device is open
  gnss: sirf: drop redundant double negation
  gnss: sirf: force hibernate mode on probe
  gnss: sirf: fix premature wakeup interrupt enable

4 files changed, 38 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/gnss/gnss.txt b/Documentation/devicetree/bindings/gnss/gnss.txt
index f1e4a2ff47c5..f547bd4549fe 100644
--- a/Documentation/devicetree/bindings/gnss/gnss.txt
+++ b/Documentation/devicetree/bindings/gnss/gnss.txt
@@ -17,6 +17,7 @@ Required properties:
 		  represents
 
 Optional properties:
+- lna-supply	: Separate supply for an LNA
 - enable-gpios	: GPIO used to enable the device
 - timepulse-gpios	: Time pulse GPIO
 
diff --git a/Documentation/devicetree/bindings/gnss/mediatek.txt b/Documentation/devicetree/bindings/gnss/mediatek.txt
new file mode 100644
index 000000000000..80cb802813c5
--- /dev/null
+++ b/Documentation/devicetree/bindings/gnss/mediatek.txt
@@ -0,0 +1,35 @@
+Mediatek-based GNSS Receiver DT binding
+
+Mediatek chipsets are used in GNSS-receiver modules produced by several
+vendors and can use a UART interface.
+
+Please see Documentation/devicetree/bindings/gnss/gnss.txt for generic
+properties.
+
+Required properties:
+
+- compatible	: Must be
+
+			"globaltop,pa6h"
+
+- vcc-supply	: Main voltage regulator (pin name: VCC)
+
+Optional properties:
+
+- current-speed		: Default UART baud rate
+- gnss-fix-gpios	: GPIO used to determine device position fix state
+			  (pin name: FIX, 3D_FIX)
+- reset-gpios		: GPIO used to reset the device (pin name: RESET, NRESET)
+- timepulse-gpios	: Time pulse GPIO (pin name: PPS1, 1PPS)
+- vbackup-supply	: Backup voltage regulator (pin name: VBAT, VBACKUP)
+
+Example:
+
+serial@1234 {
+	compatible = "ns16550a";
+
+	gnss {
+		compatible = "globaltop,pa6h";
+		vcc-supply = <&vcc_3v3>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/gnss/sirfstar.txt b/Documentation/devicetree/bindings/gnss/sirfstar.txt
index 648d183cdb77..f4252b6b660b 100644
--- a/Documentation/devicetree/bindings/gnss/sirfstar.txt
+++ b/Documentation/devicetree/bindings/gnss/sirfstar.txt
@@ -12,6 +12,7 @@ Required properties:
 
 			"fastrax,uc430"
 			"linx,r4"
+			"wi2wi,w2sg0004"
 			"wi2wi,w2sg0008i"
 			"wi2wi,w2sg0084i"
 
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 389508584f48..d80a70343b36 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -150,6 +150,7 @@ geniatech	Geniatech, Inc.
 giantec	Giantec Semiconductor, Inc.
 giantplus	Giantplus Technology Co., Ltd.
 globalscale	Globalscale Technologies, Inc.
+globaltop	GlobalTop Technology, Inc.
 gmt	Global Mixed-mode Technology, Inc.
 goodix	Shenzhen Huiding Technology Co., Ltd.
 google	Google, Inc.