From 72c1d11074d6160f19760d57fc78b2a7f52bcb1a Mon Sep 17 00:00:00 2001 From: Alexander Stein Date: Mon, 24 Apr 2023 11:23:12 +0200 Subject: dt-bindings: iio: imx8qxp-adc: add missing vref-supply Although this property is used right now for IIO_CHAN_INFO_SCALE, this ADC has two internal reference voltages, which the driver currently doesn't make use of. Fixes: db73419d8c06 ("dt-bindings: iio: adc: Add binding documentation for NXP IMX8QXP ADC") Signed-off-by: Alexander Stein Reviewed-by: Haibo Chen Acked-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20230424092312.61746-1-alexander.stein@ew.tq-group.com Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml b/Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml index 63369ba388e4..0a192ca192c5 100644 --- a/Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml @@ -39,6 +39,12 @@ properties: power-domains: maxItems: 1 + vref-supply: + description: | + External ADC reference voltage supply on VREFH pad. If VERID[MVI] is + set, there are additional, internal reference voltages selectable. + VREFH1 is always from VREFH pad. + "#io-channel-cells": const: 1 @@ -72,6 +78,7 @@ examples: assigned-clocks = <&clk IMX_SC_R_ADC_0>; assigned-clock-rates = <24000000>; power-domains = <&pd IMX_SC_R_ADC_0>; + vref-supply = <®_1v8>; #io-channel-cells = <1>; }; }; -- cgit