linux-kernel - [PATCH v4 2/4] dt-bindings: gnss: add mediatek binding

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Date:   Wed, 13 Feb 2019 16:09:27 +0100
From:   Loys Ollivier <lollivier@...libre.com>
To:     devicetree@...r.kernel.org, Johan Hovold <johan@...nel.org>
Cc:     Loys Ollivier <lollivier@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org, Kevin Hilman <khilman@...libre.com>,
        linux-amlogic@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: [PATCH v4 2/4] dt-bindings: gnss: add mediatek binding

Add binding for Mediatek-based GNSS receivers.

Signed-off-by: Loys Ollivier <lollivier@...libre.com>
---
v4:
Use standard names for reset-gpios and gnss-fix-gpios
s/an/a UART

v3:
Removed the I2C and SPI interfaces references.
Removed the "mediatek,mt3339" compatible line.
Added the optional propertied (reset, fix)
Added the pin names for the optional properties.

v2:
Renamed bindings from Globaltop/gtop to Mediatek/mtk.
Moved current-speed as an optional propertie.
Removed the status line in the example.
Added "mediatek,mt3339" compatible.

 .../devicetree/bindings/gnss/mediatek.txt          | 37 ++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gnss/mediatek.txt

diff --git a/Documentation/devicetree/bindings/gnss/mediatek.txt b/Documentation/devicetree/bindings/gnss/mediatek.txt
new file mode 100644
index 000000000000..12283d429baa
--- /dev/null
+++ b/Documentation/devicetree/bindings/gnss/mediatek.txt
@@ -0,0 +1,37 @@
+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)
+- v-bckp-supply		: Backup voltage regulator
+  			  (pin name: VBAT, VBACKUP)
+
+Example:
+
+serial@...4 {
+	compatible = "ns16550a";
+
+	gnss {
+		compatible = "globaltop,pa6h";
+		vcc-supply = <&vcc_3v3>;
+	};
+};
-- 
2.7.4