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dt-bindings: iio: filter: Add lpf/hpf freq margins

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Adds two properties to add a margin when automatically finding the
corner frequencies.

Signed-off-by: Sam Winchenbach <swinchenbach@arka.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/20250328174831.227202-2-sam.winchenbach@framepointer.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Sam Winchenbach 2025-03-28 13:48:26 -04:00 • committed by Jonathan Cameron
parent c6316e19af
commit 485eefd7f9
1 changed files with 20 additions and 0 deletions
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20
Documentation/devicetree/bindings/iio/filter/adi,admv8818.yaml
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@ -44,6 +44,24 @@ properties:
'#clock-cells':
const: 0
adi,lpf-margin-mhz:
description:
Sets the minimum distance between the fundamental frequency of `rf_in`
and the corner frequency of the low-pass, output filter when operated in
'auto' mode. The selected low-pass corner frequency will be greater than,
or equal to, `rf_in` + `lpf-margin-hz`. If not setting is found that
satisfies this relationship the filter will be put into 'bypass'.
default: 0
adi,hpf-margin-mhz:
description:
Sets the minimum distance between the fundamental frequency of `rf_in`
and the corner frequency of the high-pass, input filter when operated in
'auto' mode. The selected high-pass corner frequency will be less than,
or equal to, `rf_in` - `hpf-margin-hz`. If not setting is found that
satisfies this relationship the filter will be put into 'bypass'.
default: 0
required:
- compatible
- reg
@ -61,6 +79,8 @@ examples:
spi-max-frequency = <10000000>;
clocks = <&admv8818_rfin>;
clock-names = "rf_in";
adi,lpf-margin-mhz = <300>;
adi,hpf-margin-mhz = <300>;
};
};
...