how to reduce NRF52840 GPIOTE's power consume under NCS 2.9.1 ?

[always18]

hi,i am using zephyr`s sample of gpiote,it works well,but i don`t know how to optimize the power consume of gpiote:

1,how to setup PORT EVENT?

2,Sometimes i want to  reduce power consume like these: 

nrfx_gpiote_in_event_disable() 、nrfx_gpiote_in_uninit() and nrfx_gpiote_uninit(),
but i can`t find zephyr api to do this.

bool gpio_irq_set(const struct gpio_dt_spec *gpio, uint32_t pull, uint32_t flag, struct gpio_callback *callback, gpio_callback_handler_t handler)

{

    if (!gpio_is_ready_dt(gpio)) {

        printk("Error: device %s is not ready\n", gpio->port->name);

        return false;

    }

    int ret = gpio_pin_configure_dt(gpio, GPIO_INPUT|pull);

    if (ret != 0) {

        printk("Error %d: failed to configure %s pin %d\n", ret, gpio->port->name, gpio->pin);

        return false;

    }

    ret = gpio_pin_interrupt_configure_dt(gpio, flag);

    if (ret != 0) {

        printk("Error %d: failed to configure interrupt on %s pin %d\n", ret, gpio->port->name, gpio->pin);

        return false;

    }

    gpio_init_callback(callback, handler, BIT(gpio->pin));

    gpio_add_callback(gpio->port, callback);

    printk("Set up at %s pin %d\n", gpio->port->name, gpio->pin);

    return true;

}

static struct gpio_callback gpio_cb;

struct gpio_dt_spec gpio_int = GPIO_DT_SPEC_GET_BY_IDX(DT_NODELABEL(mems_gpio), gpios, 3);

void gpio_irq_cb(const struct device *dev, struct gpio_callback *cb, uint32_t pins)

{

    

    printk("gpio_irq_cb\n");

}

main()

{

  ...  ...

    gpio_irq_set(&gpio_int, GPIO_PULL_DOWN, GPIO_INT_EDGE_BOTH, &gpio_cb, gpio_irq_cb);

    while (1) {

        k_msleep(forever);

    }

}

[Vidar Berg]

Hello,

You can use sense-edge-mask property in your gpio node(s) in your devicetree to make gpio_pin_interrupt_configure_dt() use PORT event for edge triggering. Unlike GPIOTE IN events, PORT events do not have any impact on the sleep current.

&gpio0 {
	/* Use PORT event rather than GPIOTE IN event, to save power */
	sense-edge-mask = <0xffffffff>;
};

Best regards,

Vidar

[always18]

thanks,

Is it necessary to do something to reduce power consumption like these?

nrfx_gpiote_in_event_disable() 、nrfx_gpiote_in_uninit() and nrfx_gpiote_uninit().

 i can`t find zephyr api to do this


My prj.conf has included:

CONFIG_NRFX_GPIOTE0=y

CONFIG_PM_DEVICE=y

[Vidar Berg]

You can call gpio_pin_interrupt_configure_dt() with the GPIO_INT_DISABLE flag if you need to reset the configuration. But this is not necessary to reduce the power consumption when using PORT events

[always18]

ok，i see.

thanks