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dt-bindings: iio: io-channel-mux: allow duplicate channel, labels

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This is needed since an empty channel label is used to indicate an
unused channel, and there can be more that one of those.

Fixes the following problem reported by dtbs_check:
envelope-detector-mux: channels: ['', '', 'sync-1', 'in', 'out', 'sync-2', 'sys-reg', 'ana-reg'] has non-unique elements
	arch/arm/boot/dts/at91-tse850-3.dt.yaml

Suggested-by: Rob Herring <robh@kernel.org>
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Peter Rosin 2021-10-09 00:11:30 +02:00 committed by Jonathan Cameron
parent 86477c231c
commit 392998a803
1 changed files with 3 additions and 2 deletions
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5
Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml
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@ -35,9 +35,10 @@ properties:
mux-control-names: true
channels:
$ref: /schemas/types.yaml#/definitions/string-array
$ref: /schemas/types.yaml#/definitions/non-unique-string-array
description:
List of strings, labeling the mux controller states.
List of strings, labeling the mux controller states. An empty
string for a state means that the channel is not available.
settle-time-us:
default: 0