linux-kernel - [PATCH 3/3] dt-bindings: adxl372: Document the adxl372 I2C bindings

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Date:   Tue, 4 Sep 2018 17:13:14 +0300
From:   Stefan Popa <stefan.popa@...log.com>
To:     <jic23@...nel.org>, <robh+dt@...nel.org>
CC:     <knaack.h@....de>, <lars@...afoo.de>,
        <Michael.Hennerich@...log.com>, <pmeerw@...erw.net>,
        <mark.rutland@....com>, <linux-iio@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <stefan.popa@...log.com>
Subject: [PATCH 3/3] dt-bindings: adxl372: Document the adxl372 I2C bindings

The adxl372 is designed to communicate in either SPI or I2C protocol.
This patch adds the documentation of device tree bindings for adxl372
I2C.

Signed-off-by: Stefan Popa <stefan.popa@...log.com>
---
 Documentation/devicetree/bindings/iio/accel/adxl372.txt | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/iio/accel/adxl372.txt b/Documentation/devicetree/bindings/iio/accel/adxl372.txt
index 9409984..a289964 100644
--- a/Documentation/devicetree/bindings/iio/accel/adxl372.txt
+++ b/Documentation/devicetree/bindings/iio/accel/adxl372.txt
@@ -4,14 +4,25 @@ http://www.analog.com/media/en/technical-documentation/data-sheets/adxl372.pdf
 
 Required properties:
  - compatible : should be "adi,adxl372"
- - reg: SPI chip select number for the device
+ - reg: the I2C address or SPI chip select number for the device
+
+Required properties for SPI bus usage:
  - spi-max-frequency: Max SPI frequency to use
 
 Optional properties:
  - interrupts: interrupt mapping for IRQ as documented in
    Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
 
-Example:
+Example for a I2C device node:
+
+	accelerometer@53 {
+		compatible = "adi,adxl372";
+		reg = <0x53>;
+		interrupt-parent = <&gpio>;
+		interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
+	};
+
+Example for a SPI device node:
 
 	accelerometer@0 {
 		compatible = "adi,adxl372";
-- 
2.7.4