Unexpected Watchdog Reset on NXP RT1060-EVKB with Sleep Mode Enabled

[ofirshe]

Describe the bug

Hey, I tested the watchdog on the RT1060-EVKB with a timeout of 1000ms and enabled both flags: WDT_OPT_PAUSE_HALTED_BY_DBG and WDT_OPT_PAUSE_IN_SLEEP.

As shown in the code, immediately after calling wdt_setup, the CPU enters sleep mode for 2000ms. However, I noticed that the SoC unexpectedly resets, even though it shouldn't.

code snippet:

void main(void) {
    int err;
    int wdt_channel_id;
    const struct device *const wdt = DEVICE_DT_GET(DT_ALIAS(watchdog0));

    printk("Watchdog sample application\n");

    if (!device_is_ready(wdt)) {
        printk("%s: device not ready.\n", wdt->name);
        return;
    }

    struct wdt_timeout_cfg wdt_config = {
        /* Reset SoC when watchdog timer expires. */
        .flags = WDT_FLAG_RESET_SOC,

        /* Expire watchdog after max window */
        .window.min = 0U,
        .window.max = 1000U,
    };

    wdt_channel_id = wdt_install_timeout(wdt, &wdt_config);
    if (wdt_channel_id < 0) {
        printk("Watchdog install error\n");
        return;
    }

    err = wdt_setup(wdt, (WDT_OPT_PAUSE_HALTED_BY_DBG | WDT_OPT_PAUSE_IN_SLEEP));
    if (err < 0) {
        printk("Watchdog setup error\n");
        return;
    }

    for (int i = 0; i < 100; ++i) {
        printk("Feeding watchdog... %d \n", i);
        wdt_feed(wdt, 0);
        k_sleep(K_MSEC(2000));
    }

    return 0;
}

To Reproduce
Simply build and run the code for mimxrt1060_evkb.

Expected behavior
SoC shouldn't reset.

Environment (please complete the following information):

• OS: Windows
• Toolchain: Zephyr SDK
• SHA: 30b9463