I am attempting to get first time access to my AD74412 on an i.MX8 variant hardware. I have added the AD74412 to the device tree but the AD74412 is not available under /sys/bus/iio/devices. Is there a problem with my device tree configuration or is there something else going wrong?
I am using kernel version 5.15. Here are some relevant device tree section for the SPI port and the attached AD74412 in my code:
regulators { compatible = "simple-bus"; #address-cells = <1>; #size-cells = <0>;
...
ad74412_refin: regulator@7 { compatible = "regulator-fixed"; reg = <7>; regulator-name = "ad74412_refin"; regulator-min-microvolt = <2500000>; regulator-max-microvolt = <2500000>; enable-active-high; regulator-always-on; }; };
...
&ecspi3 { #address-cells = <1>; #size-cells = <0>; num-cs = <1>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_ecspi3>; cs-gpios = <&gpio5 25 GPIO_ACTIVE_LOW>; status = "okay"; ad74412:ad74412@0 { compatible = "adi,ad74412r"; reg = <0>; #address-cells = <1>; #size-cells = <0>; spi-max-frequency = <1000000>; spi-cpol; refin-supply = <&ad74412_refin>; status = "okay"; channel@0 { reg = <0>; adi,ch-func = <CH_FUNC_VOLTAGE_OUTPUT>; }; channel@1 { reg = <1>; adi,ch-func = <CH_FUNC_VOLTAGE_OUTPUT>; }; channel@2 { reg = <2>; adi,ch-func = <CH_FUNC_VOLTAGE_OUTPUT>; }; channel@3 { reg = <3>; adi,ch-func = <CH_FUNC_VOLTAGE_OUTPUT>; }; };};
I see the ad74412 device tree configuration in the /proc/device-tree, but the ad74412 does not show up under /sys/bus/iio/devices section. Did I miss something in the device tree configuration, or is there something else I may have missed?
