Commit | Line | Data |
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94aea0c6 MC |
1 | Bindings for Analog Devices ADGS1408/1409 8:1/Dual 4:1 Mux |
2 | ||
3 | Required properties: | |
4 | - compatible : Should be one of | |
5 | * "adi,adgs1408" | |
6 | * "adi,adgs1409" | |
9b358af7 | 7 | * Standard mux-controller bindings as described in mux-controller.yaml |
94aea0c6 MC |
8 | |
9 | Optional properties for ADGS1408/1409: | |
10 | - gpio-controller : if present, #gpio-cells is required. | |
11 | - #gpio-cells : should be <2> | |
12 | - First cell is the GPO line number, i.e. 0 to 3 | |
13 | for ADGS1408 and 0 to 4 for ADGS1409 | |
14 | - Second cell is used to specify active high (0) | |
15 | or active low (1) | |
16 | ||
17 | Optional properties: | |
18 | - idle-state : if present, the state that the mux controller will have | |
19 | when idle. The special state MUX_IDLE_AS_IS is the default and | |
20 | MUX_IDLE_DISCONNECT is also supported. | |
21 | ||
22 | States 0 through 7 correspond to signals S1 through S8 in the datasheet. | |
23 | For ADGS1409 only states 0 to 3 are available. | |
24 | ||
25 | Example: | |
26 | ||
27 | /* | |
28 | * One mux controller. | |
29 | * Mux state set to idle as is (no idle-state declared) | |
30 | */ | |
31 | &spi0 { | |
32 | mux: mux-controller@0 { | |
33 | compatible = "adi,adgs1408"; | |
34 | reg = <0>; | |
35 | spi-max-frequency = <1000000>; | |
36 | #mux-control-cells = <0>; | |
37 | }; | |
38 | } | |
39 | ||
40 | adc-mux { | |
41 | compatible = "io-channel-mux"; | |
42 | io-channels = <&adc 1>; | |
43 | io-channel-names = "parent"; | |
44 | mux-controls = <&mux>; | |
45 | ||
46 | channels = "out_a0", "out_a1", "test0", "test1", | |
47 | "out_b0", "out_b1", "testb0", "testb1"; | |
48 | }; |