[PATCH 3/4] Documentation: Add SPI example

[michael.hennerich]

From: Michael Hennerich <michael.hennerich@xxxxxxxxxx>

Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
---
 .../devicetree/bindings/input/touchscreen/ad7879.txt   | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt b/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
index 323b609..3c8614c 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
@@ -52,3 +52,21 @@ Example:
 		adi,averaging = /bits/ 8 <1>;
 		adi,conversion-interval = /bits/ 8 <255>;
 	};
+
+	ad7879@1 {
+		compatible = "adi,ad7879";
+		spi-max-frequency = <5000000>;
+		reg = <1>;
+		spi-cpol;
+		spi-cpha;
+		gpio-controller;
+		interrupt-parent = <&gpio1>;
+		interrupts = <13 IRQ_TYPE_EDGE_FALLING>;
+		touchscreen-max-pressure = <4096>;
+		adi,resistance-plate-x = <120>;
+		adi,first-conversion-delay = /bits/ 8 <3>;
+		adi,acquisition-time = /bits/ 8 <1>;
+		adi,median-filter-size = /bits/ 8 <2>;
+		adi,averaging = /bits/ 8 <1>;
+		adi,conversion-interval = /bits/ 8 <255>;
+	};
-- 
2.7.4