Failed to Read RTC Data with ATmega2560 and Zephyr OS: Integration Issue

#include <zephyr.h>
#include <device.h>
#include <drivers/i2c.h>
#include <logging/log.h>

LOG_MODULE_REGISTER(main);

#define I2C_DEV_NAME DT_LABEL(DT_NODELABEL(i2c1))
#define RTC_ADDR 0x68

const struct device *i2c_dev;

void main(void)
{
    uint8_t rtc_data[7];

    i2c_dev = device_get_binding(I2C_DEV_NAME);
    if (!i2c_dev) {
        LOG_ERR("I2C: Device driver not found");
        return;
    }

    if (i2c_read(i2c_dev, rtc_data, sizeof(rtc_data), RTC_ADDR) != 0) {
        LOG_ERR("Failed to read from RTC");
        return;
    }

    LOG_INF("RTC data read successfully");
}