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gpio: mvebu: Slightly optimize mvebu_gpio_irq_handler()

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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: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/7190f5def0489ed3f40435449c86cd7c710e6dd4.1760862679.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Christophe JAILLET 2025-10-19 10:31:38 +02:00 • committed by Bartosz Golaszewski
parent 6f5976c0cc
commit eb7f1c8415
1 changed files with 1 additions and 2 deletions
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3
drivers/gpio/gpio-mvebu.c
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@ -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) */