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authorMichael Hennerich <michael.hennerich@analog.com>2017-02-22 10:33:32 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2017-02-23 09:21:30 -0800
commitc852270a62cc07ef900f99ee812c0512f9c3583a (patch)
treeb2dcc0c0b3b29c451a49999922580a66e9802d5f /Documentation/devicetree/bindings/input/touchscreen
parent2581e5d104298fc72022a6f849921533693d08fe (diff)
downloadtalos-obmc-linux-c852270a62cc07ef900f99ee812c0512f9c3583a.tar.gz
talos-obmc-linux-c852270a62cc07ef900f99ee812c0512f9c3583a.zip
Input: ad7879 - add SPI device tree binding example
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/input/touchscreen')
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/ad7879.txt18
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt b/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
index 323b6098be19..3c8614c451f2 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>;
+ };
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