[PATCH v7 5/5] dt-bindings:iio:adc:adc.txt: Add documentation for channel label attribute

[Cristian Pop]

Optional attribute for better identification of the channels.

Signed-off-by: Cristian Pop <cristian.pop@xxxxxxxxxx>
---
Changes in v7:
 - Add this extra commit
 Documentation/devicetree/bindings/iio/adc/adc.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/adc.txt b/Documentation/devicetree/bindings/iio/adc/adc.txt
index 5bbaa330a250..4b37575bbddc 100644
--- a/Documentation/devicetree/bindings/iio/adc/adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/adc.txt
@@ -5,18 +5,24 @@ Optional properties for child nodes:
 - diff-channels : Differential channels muxed for this ADC. The first value
 		specifies the positive input pin, the second value the negative
 		input pin.
+- reg: The channel number.
+- label: Unique name to identify which channel this is.
 
 Example:
 	adc@0 {
 		compatible = "some,adc";
 		...
 		channel@0 {
+			reg = <0>;
+			label = "channel_0_name";
 			bipolar;
 			diff-channels = <0 1>;
 			...
 		};
 
 		channel@1 {
+			reg = <1>;
+			label = "channel_1_name";
 			diff-channels = <2 3>;
 			...
 		};
-- 
2.17.1