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| author | Kurt Borja <kuurtb@gmail.com> | 2026-07-14 18:21:24 -0500 |
|---|---|---|
| committer | Jonathan Cameron <jonathan.cameron@oss.qualcomm.com> | 2026-07-20 00:30:26 +0100 |
| commit | fc418aa7742b799a56923016121841806a3e6545 (patch) | |
| tree | c4e3d83f22dcf505b656554b82d7f346241dfedf | |
| parent | d8a07f620077fc84a2e94610334a35132dbeb2a8 (diff) | |
| download | linux-fc418aa7742b799a56923016121841806a3e6545.tar.gz linux-fc418aa7742b799a56923016121841806a3e6545.zip | |
dt-bindings: iio: adc: Add excitation current sources properties
Some ADCs incorporate current sources that provide excitation current to
resistive temperature devices (RTDs), thermistors, diodes and other
resistive sensors that require constant current biasing.
Signed-off-by: Kurt Borja <kuurtb@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: David Lechner (TI) <dlechner@baylibre.com>
Signed-off-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/adc.yaml | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml index 8f608bf0b24d..9f7196d61ac3 100644 --- a/Documentation/devicetree/bindings/iio/adc/adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adc.yaml @@ -80,6 +80,27 @@ properties: ADCs usually allow choosing between internal reference sources or a pair of external pins. + excitation-channels: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + Excitation current sources provide current to resistive temperature + devices (RTDs), thermistors, diodes and other resistive sensors that + require constant current biasing. + + This array describes the mux configuration of the excitation current + sources. The values correspond to pins similar to the diff-channels and + single-channel properties. + + excitation-current-nanoamp: + description: + Excitation current sources provide current to resistive temperature + devices (RTDs), thermistors, diodes and other resistive sensors that + require constant current biasing. + + This array describes the current configuration of the excitation current + sources. The index in the array corresponds to the same index in the + excitation-channels array. + anyOf: - oneOf: - required: |