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dt-bindings: mfd: da9052: Support TSI as ADC 

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>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Sebastian Reichel 2017-07-03 10:39:59 +02:00 committed by Lee Jones
parent 2042f3c29f
commit 5368b06dba
1 changed files with 8 additions and 0 deletions
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8
Documentation/devicetree/bindings/mfd/da9052-i2c.txt
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@ -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: