Signed-off-by: Peter Rosin <peda@xxxxxxxxxx> --- .../bindings/iio/multiplexer/iio-mux.txt | 47 ++++++++++++++++++++++ MAINTAINERS | 6 +++ 2 files changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt diff --git a/Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt b/Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt new file mode 100644 index 000000000000..f5eccdfbed40 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt @@ -0,0 +1,47 @@ +IIO multiplexer bindings + +If a multiplexer is used to select which hardware signal is fed to +e.g. an ADC channel, these bindings describe that situation. + +Required properties: +- compatible : "iio-mux" +- io-channels : Channel node of the parent channel that has multiplexed + input. +- io-channel-names : Should be "parent". +- #address-cells = <1>; +- #size-cells = <0>; + +Required properties for iio-mux child nodes: +- reg : The multiplexer state as described in ../misc/mux-controller.txt + +For each iio-mux child, an iio channel will be created whose number will +match the mux controller state. + +Example: + adc-mux { + compatible = "iio-mux"; + io-channels = <&adc 0>; + io-channel-names = "parent"; + + #address-cells = <1>; + #size-cells = <0>; + + mux-controller { + compatible = "mux-gpio"; + + mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>, + <&pioA 1 GPIO_ACTIVE_HIGH>; + }; + + sync@0 { + reg = <0>; + }; + + in@1 { + reg = <1>; + }; + + system-regulator@2 { + reg = <2>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 9635c9708a13..7f02f58dfc37 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6233,6 +6233,12 @@ F: Documentation/ABI/testing/sysfs-bus-iio-adc-envelope-detector F: Documentation/devicetree/bindings/iio/adc/envelope-detector.txt F: drivers/iio/adc/envelope-detector.c +IIO MULTIPLEXER +M: Peter Rosin <peda@xxxxxxxxxx> +L: linux-iio@xxxxxxxxxxxxxxx +S: Maintained +F: Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt + IIO SUBSYSTEM AND DRIVERS M: Jonathan Cameron <jic23@xxxxxxxxxx> R: Hartmut Knaack <knaack.h@xxxxxx> -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html