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-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/ad7879.txt1
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt b/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
index e3f22d23fc8f..323b6098be19 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/ad7879.txt
@@ -35,6 +35,7 @@ Optional properties:
- adi,conversion-interval: : 0 : convert one time only
1-255: 515us + val * 35us (up to 9.440ms)
This property has to be a '/bits/ 8' value
+- gpio-controller : Switch AUX/VBAT/GPIO pin to GPIO mode
Example: