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-rw-r--r--Documentation/devicetree/bindings/arm/atmel-adc.txt8
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/arm/atmel-adc.txt b/Documentation/devicetree/bindings/arm/atmel-adc.txt
index 723c205cb10d..d1061469f63d 100644
--- a/Documentation/devicetree/bindings/arm/atmel-adc.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-adc.txt
@@ -7,7 +7,6 @@ Required properties:
- interrupts: Should contain the IRQ line for the ADC
- atmel,adc-channels-used: Bitmask of the channels muxed and enable for this
device
- - atmel,adc-num-channels: Number of channels available in the ADC
- atmel,adc-startup-time: Startup Time of the ADC in microseconds as
defined in the datasheet
- atmel,adc-vref: Reference voltage in millivolts for the conversions
@@ -24,6 +23,13 @@ Optional properties:
resolution will be used.
- atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion
- atmel,adc-sample-hold-time: Sample and Hold Time in microseconds
+ - atmel,adc-ts-wires: Number of touch screen wires. Should be 4 or 5. If this
+ value is set, then adc driver will enable touch screen
+ support.
+ NOTE: when adc touch screen enabled, the adc hardware trigger will be
+ disabled. Since touch screen will occupied the trigger register.
+ - atmel,adc-ts-pressure-threshold: a pressure threshold for touchscreen. It
+ make touch detect more precision.
Optional trigger Nodes:
- Required properties: