linux-kernel - [PATCH 1/2] iio: magnetometer: Add DT support for PNI RM3100

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Date:   Tue, 25 Sep 2018 11:17:23 +0800
From:   Song Qiang <songqiang1304521@...il.com>
To:     jic23@...nel.org, knaack.h@....de, lars@...afoo.de,
        pmeerw@...erw.net, robh+dt@...nel.org, mark.rutland@....com
Cc:     preid@...ctromag.com.au, rtresidd@...ctromag.com.au,
        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Song Qiang <songqiang1304521@...il.com>
Subject: [PATCH 1/2] iio: magnetometer: Add DT support for PNI RM3100

PNI RM3100 is a high resolution, large signal immunity magnetometer,
composed of 3 single sensors and a processing chip with MagI2C Interface.
PNI is not in the vendors' list, so this patch is also adding it.

Signed-off-by: Song Qiang <songqiang1304521@...il.com>
---
Changes in v2:
        - Remove bus specific part in compatible string.

 .../bindings/iio/magnetometer/pni,rm3100.txt  | 20 +++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.txt   |  1 +
 2 files changed, 21 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt

diff --git a/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt b/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt
new file mode 100644
index 000000000000..4677690fc5d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/magnetometer/pni,rm3100.txt
@@ -0,0 +1,20 @@
+* PNI RM3100 3-axis magnetometer sensor
+
+Required properties:
+
+- compatible : should be "pni,rm3100"
+- reg : the I2C address or SPI chip select number of the sensor.
+
+Optional properties:
+
+- interrupts: data ready (DRDY) from the chip.
+  The interrupts can be triggered on rising edges.
+
+Example:
+
+rm3100: rm3100@20 {
+	compatible = "pni,rm3100";
+	reg = <0x20>;
+	interrupt-parent = <&gpio0>;
+	interrupts = <4 IRQ_TYPE_EDGE_RISING>;
+};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 41f0b97eb933..5bf3395fe9ae 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -288,6 +288,7 @@ pine64	Pine64
 pixcir  PIXCIR MICROELECTRONICS Co., Ltd
 plathome	Plat'Home Co., Ltd.
 plda	PLDA
+pni     PNI
 portwell	Portwell Inc.
 poslab	Poslab Technology Co., Ltd.
 powervr	PowerVR (deprecated, use img)
-- 
2.17.1