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-rw-r--r--Documentation/devicetree/bindings/iio/adc/nxp,imx8qxp-adc.yaml7
1 files changed, 7 insertions, 0 deletions
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 = <&reg_1v8>;
#io-channel-cells = <1>;
};
};