linux-kernel - [PATCH v2 2/8] dt-bindings: add generic gnss binding

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Date:   Wed, 30 May 2018 12:32:36 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Andreas Kemnade <andreas@...nade.info>,
        Arnd Bergmann <arnd@...db.de>,
        "H . Nikolaus Schaller" <hns@...delico.com>,
        Pavel Machek <pavel@....cz>,
        Marcel Holtmann <marcel@...tmann.org>,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Tony Lindgren <tony@...mide.com>, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Johan Hovold <johan@...nel.org>
Subject: [PATCH v2 2/8] dt-bindings: add generic gnss binding

Describe generic properties for GNSS receivers.

Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Johan Hovold <johan@...nel.org>
---
 .../devicetree/bindings/gnss/gnss.txt         | 36 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 37 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gnss/gnss.txt

diff --git a/Documentation/devicetree/bindings/gnss/gnss.txt b/Documentation/devicetree/bindings/gnss/gnss.txt
new file mode 100644
index 000000000000..f0cfa69249f8
--- /dev/null
+++ b/Documentation/devicetree/bindings/gnss/gnss.txt
@@ -0,0 +1,36 @@
+GNSS Receiver DT binding
+
+This documents the binding structure and common properties for GNSS receiver
+devices.
+
+A GNSS receiver node is a node named "gnss" and typically resides on a serial
+bus (e.g. UART, I2C or SPI).
+
+Please refer to the following documents for generic properties:
+
+	Documentation/devicetree/bindings/serial/slave-device.txt
+	Documentation/devicetree/bindings/spi/spi-bus.txt
+
+Required properties:
+
+- compatible 	: A string reflecting the vendor and specific device the node
+		  represents
+
+Optional properties:
+- enable-gpios	: GPIO used to enable the device
+- timepulse-gpios	: Time pulse GPIO
+
+Example:
+
+serial@...4 {
+	compatible = "ns16550a";
+
+	gnss {
+		compatible = "u-blox,neo-8";
+
+		vcc-supply = <&gnss_reg>;
+		timepulse-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>;
+
+		current-speed = <4800>;
+	};
+};
diff --git a/MAINTAINERS b/MAINTAINERS
index dc3df211c1a7..fa219e80a1f8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5965,6 +5965,7 @@ F:	include/uapi/linux/gigaset_dev.h
 GNSS SUBSYSTEM
 M:	Johan Hovold <johan@...nel.org>
 S:	Maintained
+F:	Documentation/devicetree/bindings/gnss/
 F:	drivers/gnss/
 F:	include/linux/gnss.h
 
-- 
2.17.0