error: '__device_dts_ord_7' undeclared here (not in a function); did you mean '__device_dts_ord_8'? #define DEVICE_NAME_GET(dev_id) _CONCAT(__device_, dev_id)

[Harija4]

I'm getting this error while building my project.
When I comment out the below mentioned line in adc_driver.c file, the project is building properly without errors. But when the lines are present, I cant able to build and the error occurs.
//DT_FOREACH_PROP_ELEM(DT_PATH(zephyr_user), io_channels, DT_SPEC_AND_COMMA)

Overlay File:

#include <zephyr/dt-bindings/adc/mcux-lpadc.h>

/ {
    zephyr,user {
        io-channels = <&adc0 0>, <&adc0 1>;
    };
};
	
&adc0 {
    #address-cells = <1>;
    #size-cells = <0>;

    /*
     * To use this sample:
     * - Connect VREFN_TARGET to GND, and VREFP_TARGET to 3v3
     *   (Resistors J8 and J9, should be populated by default)
     * LPADC0 CH0A and CH0B are set up in differential mode
     * - Connect LPADC0 CH0A signal to voltage between 0~3.3V (P19 pin 4)
     * - Connect LPADC0 CH0B signal to voltage between 0~3.3V (P19 pin 2)
     * LPADC0 CH4A is set up in single ended mode
     * - Connect LPADC0 CH4A signal to voltage between 0~3.3V (P17 pin 19)
    */

    /*
     * Channel 0 is used for differential mode, with 13 bit resolution
     * CH0A (plus side) is routed to P19 pin 4
     * CH0B (minus side) is routed to P19 pin 2
    */

    channel@0 {
        reg = <0>;
        zephyr,gain = "ADC_GAIN_1";
        zephyr,reference = "ADC_REF_EXTERNAL0";
        zephyr,vref-mv = <3300>;
        zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
        zephyr,resolution = <16>;
        zephyr,input-positive = <MCUX_LPADC_CH0B>;
    };

    /*
     * Channel 1 is used in single ended mode, with 16 bit resolution
     * CH4A is routed to P17 pin 19
    */

    channel@1 {
        reg = <1>;
        zephyr,gain = "ADC_GAIN_1";
        zephyr,reference = "ADC_REF_EXTERNAL0";
        zephyr,vref-mv = <3300>;
        zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;
        zephyr,resolution = <16>;
        zephyr,input-positive = <MCUX_LPADC_CH0A>;
    };
};

adc_driver.c

#if !DT_NODE_EXISTS(DT_PATH(zephyr_user)) || \
    !DT_NODE_HAS_PROP(DT_PATH(zephyr_user), io_channels)
#error "No suitable devicetree overlay specified"
#endif
 
#define DT_SPEC_AND_COMMA(node_id, prop, idx) \
    ADC_DT_SPEC_GET_BY_IDX(node_id, idx),


static const struct adc_dt_spec adc_channels[] = {
    DT_FOREACH_PROP_ELEM(DT_PATH(zephyr_user), io_channels, 
    DT_SPEC_AND_COMMA)
};

[ndrs-pst]

@Harija4 FWIW, I tested building the samples/drivers/adc on the following boards: lpcxpresso55s69_cpu0, mimxrt685_evk_cm33 without encountering any issues.