From fb57b5cdfb97c4f52ca21a432db2aa809ba6692d Mon Sep 17 00:00:00 2001 From: Piyush Patle Date: Thu, 4 Jun 2026 00:18:50 +0530 Subject: [PATCH] dt-bindings: iio: adc: hx711: add VSUP and DVDD supply properties 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 Reviewed-by: Andy Shevchenko Acked-by: Conor Dooley Signed-off-by: Jonathan Cameron --- .../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