Commit Graph

4 Commits

Author SHA1 Message Date
Peter Rosin
392998a803 dt-bindings: iio: io-channel-mux: allow duplicate channel, labels
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>
2021-10-21 20:03:01 +01:00
Peter Rosin
86477c231c dt-bindings: iio: io-channel-mux: add optional #io-channel-cells
Needed for in-kernel use of the child channels of the mux.

Fixes problems like this, reported by dtbs_check:
adc0mux: '#io-channel-cells' does not match any of the regexes: 'pinctrl-[0-9]+'
	arch/arm/boot/dts/aspeed-bmc-ampere-mtjade.dt.yaml

Suggested-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Peter Rosin <peda@axentia.se>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-21 20:03:01 +01:00
Vincent Whitchurch
b9221f71c2 dt-bindings: iio: io-channel-mux: Add property for settle time
Hardware may require some time for the muxed analog signals to settle
after the muxing is changed.  Allow this time to be specified in the
devicetree.

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20211007134641.13417-3-vincent.whitchurch@axis.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-21 20:02:49 +01:00
Jonathan Cameron
e9ab77a4f2 dt-bindings: iio: multiplexer: Convert io-channel-mux bindings to DT schema
Straight conversion of the txt file using the mux-consumer.yaml
binding now that is available.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Peter Rosin <peda@axentia.se>
[robh: Drop quotes and $ref for mux-controls]
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210522112908.1611389-3-jic23@kernel.org
2021-06-02 16:05:22 -05:00