gpio_pin_get_config_dt doesnt work as it explained for STM32U5

[zafersn]

Hi,

I am trying to get the latest configuration of the pin, and if it is already configured with the settings that I want to set, i do not need to set it again. So I can pass configuring the pin step.

Here is the explanation of gpio_pin_get_config:

 * @retval 0 If successful.
 * @retval -ENOSYS if getting the current pin configuration is not implemented
 *                  by the driver.
 * @retval -EINVAL Invalid argument.
 * @retval -EIO I/O error when accessing an external GPIO chip.
 * @retval -EWOULDBLOCK if operation would block.

here is a sample of the codes I am running after boot up:

int ret2 = gpio_pin_get_config_dt(&pin_reset_detail, &flags2);
if(ret2)
{
	LOG_DBG("ret: %d flg: %d", ret2, flags2);
}
else
{
	LOG_DBG("ret: %d flg: %d", ret2, flags2);
}

ret2 and flag return:
ret2: 0 flg2: 393216 ( bit 17 and 18 are set 1) It means: GPIO_OUTPUT_LOW. so this shows me the pin already configured during boot up. No need to re-configure the pin, I just wanted to set the high and low the pin.

The issue at this point, unless you re-configure the pin you cannot set/reset the pin.

Is this a bug? or Am I missing a point?

I have configs

CONFIG_GPIO=y
CONFIG_GPIO_GET_CONFIG=y