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Subject[PATCH v11 02/11] dt-bindings: iio: adc: hx711: add VSUP and DVDD supply properties
Date
Document the optional VSUP supply used by the HX711 on-chip regulator.

Also document the DVDD digital supply. DVDD is a board-supplied digital
input rail (figure 1 of the datasheet shows it as a separate supply, not
merely a bypass capacitor point) that was missing from the original
binding.

Signed-off-by: Piyush Patle <piyushpatle228@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
---
.../devicetree/bindings/iio/adc/avia-hx711.yaml | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
index 1ea60dff98d5..0baf620e9057 100644
--- a/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
+++ b/Documentation/devicetree/bindings/iio/adc/avia-hx711.yaml
@@ -33,6 +33,19 @@ properties:
description:
Analog supply voltage (AVDD).

+ vsup-supply:
+ description:
+ Supply voltage for the on-chip regulator (VSUP).
+
+ dvdd-supply:
+ description:
+ Digital supply voltage (DVDD). On the HX711, DVDD is a
+ board-supplied digital rail; it was missing from the original
+ binding. On the HX710B, DVDD must be greater than or equal to
+ AVDD; when DVDD is a battery rail and AVDD is a regulated supply,
+ one channel monitors the DVDD-AVDD difference for battery level
+ detection.
+
clock-frequency:
description:
Controls the SCK bit-bang timing. The value is used to derive the
--
2.43.0

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