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48 lines
1.3 KiB
48 lines
1.3 KiB
Bindings for Analog Devices ADGS1408/1409 8:1/Dual 4:1 Mux |
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Required properties: |
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- compatible : Should be one of |
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* "adi,adgs1408" |
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* "adi,adgs1409" |
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* Standard mux-controller bindings as described in mux-controller.yaml |
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Optional properties for ADGS1408/1409: |
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- gpio-controller : if present, #gpio-cells is required. |
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- #gpio-cells : should be <2> |
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- First cell is the GPO line number, i.e. 0 to 3 |
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for ADGS1408 and 0 to 4 for ADGS1409 |
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- Second cell is used to specify active high (0) |
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or active low (1) |
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Optional properties: |
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- idle-state : if present, the state that the mux controller will have |
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when idle. The special state MUX_IDLE_AS_IS is the default and |
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MUX_IDLE_DISCONNECT is also supported. |
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States 0 through 7 correspond to signals S1 through S8 in the datasheet. |
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For ADGS1409 only states 0 to 3 are available. |
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Example: |
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/* |
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* One mux controller. |
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* Mux state set to idle as is (no idle-state declared) |
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*/ |
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&spi0 { |
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mux: mux-controller@0 { |
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compatible = "adi,adgs1408"; |
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reg = <0>; |
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spi-max-frequency = <1000000>; |
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#mux-control-cells = <0>; |
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}; |
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} |
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adc-mux { |
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compatible = "io-channel-mux"; |
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io-channels = <&adc 1>; |
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io-channel-names = "parent"; |
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mux-controls = <&mux>; |
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channels = "out_a0", "out_a1", "test0", "test1", |
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"out_b0", "out_b1", "testb0", "testb1"; |
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};
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