GPIO-controlled Multiplexers (MUX) A/D Converter bindings
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Required properties:
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- compatible: should be "gpio-muxadc" or others like below
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- "sgm3699": for a quad, bidirectional, single-pole/double-throw (SPDT) CMOS analog switch.
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- "sgm48752": for a dual, bidirectional, double-pole/double-throw (DPDT) CMOS analog switch.
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- io-channels: Channel node of the parent channel that has multiplexed input.
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- switch-gpios: Digital control pins to connect the parent adc channel(saradc) to the input adc channel(muxadc).
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- labels: The string list for each muxadc channel that should be placed in order.
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Example:
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muxadc {
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compatible = "sgm48752";
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io-channels = <&saradc 4>, <&saradc 5>;
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switch-gpios = <&gpio1 RK_PA0 GPIO_ACTIVE_HIGH>,
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<&gpio1 RK_PA1 GPIO_ACTIVE_HIGH>;
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labels = "wheel_vpropi_r_adc", "wheel_vpropi_l_adc",
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"fan_opa_adc", "mid_opa_adc",
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"pump_opa_adc", "side_opa_adc",
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"dc24vdet_adc", "collision_det_adc_lidar";
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pinctrl-names = "default";
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pinctrl-0 = <&switch_gpios>;
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status = "okay";
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};
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