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Subject[RFC PATCH v2 4/7] dt-bindings: iio: iio-mux: document iio-mux bindings
Date
---
.../bindings/iio/multiplexer/iio-mux.txt | 49 ++++++++++++++++++++++
1 file changed, 49 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..df6e4d5cc45e
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/multiplexer/iio-mux.txt
@@ -0,0 +1,49 @@
+IIO multiplexer bindings
+
+If a multiplexer is used to select when 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".
+- control-muxes : Node of the multiplexer that controls the input signal.
+- control-mux-names : Should be "mux".
+- #address-cells = <1>;
+- #size-cells = <0>;
+
+Required properties for iio-mux child nodes:
+- reg : The multiplexer number.
+
+Example:
+ control_adc_mux: control-adc-mux {
+ compatible = "mux-gpio";
+
+ mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>,
+ <&pioA 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ adc-mux {
+ compatible = "iio-mux";
+ io-channels = <&adc 0>;
+ io-channel-names = "parent";
+
+ control-muxes = <&control_adc_mux>;
+ control-mux-names = "mux";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ sync@0 {
+ reg = <0>;
+ };
+
+ in@1 {
+ reg = <1>;
+ };
+
+ system-regulator@2 {
+ reg = <2>;
+ };
+ };
--
2.1.4
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