Commit eb7f1c84 authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Bartosz Golaszewski
Browse files

gpio: mvebu: Slightly optimize mvebu_gpio_irq_handler() 



In the main loop of mvebu_gpio_irq_handler() some calls to
irq_find_mapping() can be saved.

There is no point to find an irq number before checking if this something
has to be done.
By testing first, some calls can be saved.

Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/7190f5def0489ed3f40435449c86cd7c710e6dd4.1760862679.git.christophe.jaillet@wanadoo.fr


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent 6f5976c0

drivers/gpio/gpio-mvebu.c

+1 −2
Original line number Diff line number Diff line
@@ -573,11 +573,10 @@ static void mvebu_gpio_irq_handler(struct irq_desc *desc) 
	for (i = 0; i < mvchip->chip.ngpio; i++) {

		int irq;



		irq = irq_find_mapping(mvchip->domain, i);



		if (!(cause & BIT(i)))

			continue;



		irq = irq_find_mapping(mvchip->domain, i);

		type = irq_get_trigger_type(irq);

		if ((type & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) {

			/* Swap polarity (race with GPIO line) */