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List: linux-input
Subject: [PATCHv4 3/4] dt-bindings: mfd: da9052: support TSI as ADC
From: Sebastian Reichel <sebastian.reichel () collabora ! co ! uk>
Date: 2017-06-30 14:35:05
Message-ID: 20170630143506.10541-4-sebastian.reichel () collabora ! co ! uk
[Download RAW message or body]
DA9052 allows using the touchscreen input pins as general purpose
analogue input pin by wiring analogue inputs to X+, X-, Y+ and Y-
and providing a reference voltage at TSIREF pin.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
---
Documentation/devicetree/bindings/mfd/da9052-i2c.txt | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt \
b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt index \
9554292dc6cb..57fa74e65664 100644
--- a/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
+++ b/Documentation/devicetree/bindings/mfd/da9052-i2c.txt
@@ -4,6 +4,14 @@ Required properties:
- compatible : Should be "dlg,da9052", "dlg,da9053-aa",
"dlg,da9053-ab", or "dlg,da9053-bb"
+Optional properties:
+- dlg,tsi-as-adc : Boolean, if set the X+, X-, Y+, Y- touchscreen
+ input lines are used as general purpose analogue
+ input.
+- tsiref-supply: Phandle to the regulator, which provides the reference
+ voltage for the TSIREF pin. Must be provided when the
+ touchscreen pins are used for ADC purposes.
+
Sub-nodes:
- regulators : Contain the regulator nodes. The DA9052/53 regulators are
bound using their names as listed below:
--
2.11.0
--
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