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| author |   Angelo Dureghello <adureghello@baylibre.com> | 2025-06-06 16:19:19 +0200 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-06-09 07:45:37 +0100 |
| commit | e986466a92da6a0e8acf118facfb05a6d6d4dbcf (patch) | |
| tree | 627710b2c3acaf504ec2c55834a043e16df224e2 | |
| parent | iio: adc: ad7606: add offset and phase calibration support (diff) | |
| download | wireguard-linux-e986466a92da6a0e8acf118facfb05a6d6d4dbcf.tar.xz wireguard-linux-e986466a92da6a0e8acf118facfb05a6d6d4dbcf.zip | |
dt-bindings: iio: adc: adi,ad7606: add gain calibration support
Add gain calibration support by a per-channel resistor value.
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-4-6e014a1f92a2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml index 29f12d650442..6926f5f090ad 100644 --- a/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adi,ad7606.yaml @@ -204,6 +204,15 @@ patternProperties: considered a bipolar differential channel. Otherwise it is bipolar single-ended. + adi,rfilter-ohms: + description: + For ADCs that supports gain calibration, this property must be set to + the value of the external RFilter resistor. Proper gain error + correction is applied based on this value. + default: 0 + minimum: 0 + maximum: 64512 + required: - reg - bipolar @@ -268,6 +277,25 @@ allOf: - adi,ad7607 - adi,ad7608 - adi,ad7609 + - adi,ad7616 + then: + patternProperties: + "^channel@[0-9a-f]+$": + properties: + adi,rfilter-ohms: false + + - if: + properties: + compatible: + contains: + enum: + - adi,ad7605-4 + - adi,ad7606-4 + - adi,ad7606-6 + - adi,ad7606-8 + - adi,ad7607 + - adi,ad7608 + - adi,ad7609 then: properties: adi,sw-mode: false @@ -398,6 +426,7 @@ examples: reg = <8>; diff-channels = <8 8>; bipolar; + adi,rfilter-ohms = <2048>; }; }; |