Adding dt-bindings documentation for adgs1408/1409 multiplexer. The
bindings follow the standard SPI and mux bindings and do not require any
additional custom properties.
Signed-off-by: Mircea Caprioru <mircea.caprioru@xxxxxxxxxx>
---
.../devicetree/bindings/mux/adi,adgs140x.txt | 39 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 40 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mux/adi,adgs140x.txt
diff --git a/Documentation/devicetree/bindings/mux/adi,adgs140x.txt b/Documentation/devicetree/bindings/mux/adi,adgs140x.txt
new file mode 100644
index 000000000000..5f2c2b9e9781
--- /dev/null
+++ b/Documentation/devicetree/bindings/mux/adi,adgs140x.txt
@@ -0,0 +1,39 @@
+Bindings for Analog Devices ADGS1408/1409 8:1/Dual 4:1 Mux
+
+Required properties:
+- compatible : "adi,adgs1408" or "adi,adgs1409"
+- #mux-control-cells : <0>
+* Standard mux-controller bindings as described in mux-controller.txt
+
+Optional properties:
+- idle-state : if present, array of states that the mux controllers will have
+ when idle. The special state MUX_IDLE_AS_IS is the default and
+ MUX_IDLE_DISCONNECT is also supported.
+
+States 0 through 7 correspond to signals S1 through S8 in the datasheet.
+
+Example:
+
+ /*
+ * One mux controller.
+ * Mux 1 to 8 set to idle as is (no idle-state declared)
+ */
+ &spi0 {
+ mux: mux-controller@2 {
+ compatible = "adi,adgs1408";
+ reg = <0>;
+ spi-max-frequency = <1000000>;
+ #mux-control-cells = <0>;
+ };
+ }
+
+ adc-mux@3 {
+ compatible = "io-channel-mux";
+ io-channels = <&adc 1>;
+ io-channel-names = "parent";
+ mux-controls = <&mux>;
+
+ channels = "out_a0", "out_a1", "test0", "test1",
+ "out_b0", "out_b1", "testb0", "testb1";
+
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 7aa68f38ea4b..6e69c3e2d27a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -816,6 +816,7 @@ W: http://wiki.analog.com/
W: http://ez.analog.com/community/linux-device-drivers
S: Supported
F: drivers/mux/adgs140x.c
+F: Documentation/devicetree/bindings/mux/adgs140x.txt
ANALOG DEVICES INC ADV7180 DRIVER
M: Lars-Peter Clausen <lars@xxxxxxxxxx>
--
2.17.1
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