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drivers: gpio: add combined drive strength flags and mask

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Introduce combined GPIO drive strength flags for GPIO controllers only
supporting either default or alternative drive strength regardless if
the pin is driven to a high or a low level.

Fixes: #30329

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2021-11-07 21:56:20 +01:00 • committed by Christopher Friedt
commit 2e8cc9f9b0
9 changed files with 26 additions and 13 deletions
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2
drivers/gpio/gpio_pca953x.c
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@ -203,7 +203,7 @@ static int gpio_pca953x_config(const struct device *dev, gpio_pin_t pin,
* Until something more general is available reject any
* attempt to set a non-default drive strength.
*/
if ((flags & (GPIO_DS_ALT_LOW | GPIO_DS_ALT_HIGH)) != 0) {
if ((flags & GPIO_DS_ALT) != 0) {
return -ENOTSUP;
}