From f7e196fc0815dea074b861a97503bf0d330f7165 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Wed, 28 Apr 2021 09:32:06 +0200 Subject: [PATCH] dt-bindings:iio:adc: add generic settling-time-us and oversampling-ratio channel properties Settling time and over sampling is a typical challenge for different IIO ADC devices. So, introduce channel specific settling-time-us and oversampling-ratio properties to cover this use case. Signed-off-by: Oleksij Rempel Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20210428073208.19570-2-o.rempel@pengutronix.de Signed-off-by: Jonathan Cameron --- Documentation/devicetree/bindings/iio/adc/adc.yaml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/adc/adc.yaml b/Documentation/devicetree/bindings/iio/adc/adc.yaml index 912a7635edc4b..db348fcbb52cb 100644 --- a/Documentation/devicetree/bindings/iio/adc/adc.yaml +++ b/Documentation/devicetree/bindings/iio/adc/adc.yaml @@ -39,4 +39,16 @@ properties: The first value specifies the positive input pin, the second specifies the negative input pin. + settling-time-us: + description: + Time between enabling the channel and first stable readings. + + oversampling-ratio: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Oversampling is used as replacement of or addition to the low-pass filter. + In some cases, the desired filtering characteristics are a function the + device design and can interact with other characteristics such as + settling time. + additionalProperties: true