gpiolib: cdev: remove redundant store of debounce_period_us

debounce_setup() stores the debounce_period_us if the driver supports
debounce, but the debounce_period_us is also stored where debounce_setup()
is called, independent of whether the debounce is being perfomed by
hardware or software.

Remove the redundant storing of the debounce_period_us in
debounce_setup().

Signed-off-by: Kent Gibson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>

Author: warthog618

drivers/gpio/gpiolib-cdev.c

@@ -929,10 +929,6 @@ static int debounce_setup(struct line *line, unsigned int debounce_period_us)
 	ret = gpio_do_set_config(line->desc,
 			pinconf_to_config_packed(PIN_CONFIG_INPUT_DEBOUNCE,
 						 debounce_period_us));
-	if (!ret) {
-		WRITE_ONCE(line->desc->debounce_period_us, debounce_period_us);
-		return ret;
-	}
 	if (ret != -ENOTSUPP)
 		return ret;