Devicetree macro raise syntax error even if I follow API Document example

[ATHZoA79]

Describe the bug

Objective : I want access the devicetree setting of a list of gpio and make it into gpio_spec_dt array.

So I tried the example code from Devicetree API Document, and write a simple code to test if it actually et all the devicetree config into gpio_spec, and then the error raise

/home/zoa0111/zephyr-workspace4.1/apps/io_sequence_ctrl/src/main.c:18:132: error: expected identifier or '(' before ',' token
   18 | static const struct gpio_dt_spec sfp_green_leds[] = DT_FOREACH_PROP_ELEM_SEP(SFP_GREEN_LEDS_NODE, gpios, GPIO_DT_SPEC_GET_BY_IDX, (,));

this error raise reguardless I replace the macro to DT_FOREACH_PROP_ELEM or GPIO_DT_SPEC_GET.

Files

main.c

#include <stdio.h>
#include <zephyr/kernel.h>
#include <zephyr/device.h>
#include <zephyr/devicetree.h>
#include <zephyr/drivers/gpio.h>

#define SFP_GREEN_LEDS_NODE DT_NODELABEL(sfp_green_leds)

#define GPIO_SPEC_GET_ELEM(node_id, prop, idx) \
    GPIO_DT_SPEC_GET_BY_IDX(node_id, prop, idx)

static const struct gpio_dt_spec sfp_green_leds[] = DT_FOREACH_PROP_ELEM_SEP(SFP_GREEN_LEDS_NODE, gpios, GPIO_DT_SPEC_GET_BY_IDX, (,));

int main(void)
{
	for (int i = 0; i < ARRAY_SIZE(sfp_green_leds); i++)
	{
		if (!gpio_is_ready_dt(&sfp_green_leds[i]))
		{
			printf("SFP green LED %d not ready\n", i);
			return 0;
		}

		printk("Node %d: SFP green LED is p%s_%d\n", i,
			   sfp_green_leds[i].port->name, sfp_green_leds[i].pin);
	}
	return 0;
}

app.overlay

/ {
    sfp_green_leds: sfp_green_leds {
        #address-cell = <1>;
        #size-cell = <0>;
        compatible = "my,sfp-leds";
        gpios = <&gpio4 16 GPIO_ACTIVE_HIGH>,
                <&gpio4 18 GPIO_ACTIVE_HIGH>,
                <&gpio4 20 GPIO_ACTIVE_HIGH>,
                <&gpio4 22 GPIO_ACTIVE_HIGH>,
                <&gpio5 2 GPIO_ACTIVE_HIGH>,
                <&gpio5 4 GPIO_ACTIVE_HIGH>,
                <&gpio5 6 GPIO_ACTIVE_HIGH>,
                <&gpio5 8 GPIO_ACTIVE_HIGH>;
        label = "sfp_green_leds";
    };
};

dts/bindings/my,sfp-leds.yaml

description: |
  Group of GPIO to control SFP port LED.

compatible: "my,sfp-leds"

properties:
  gpios:
    type: phandle-array
    required: true
  label:
    type: string
    description: |
      Human readable string describing the LED. It can be used by an
      application to identify this LED or to retrieve its number/index
      (i.e. child node number) on the parent device.

Regression

• This is a regression.

Steps to reproduce

No response

Relevant log output

Impact

Major – Severely degrades functionality; workaround is difficult or unavailable.

Environment

• OS : Ubuntu22.04
• Toolchain : Zephyr SDK0.17.0 ,Workspace4.1

Additional Context

No response

[nordicjm]

your code does not match the example code