gpio: pxa: remove gpio_to_irq() from hw irq handlers

gpio_to_irq() API expected to be used by GPIO consumers and
not drivers and there are no guarantee that its gpiolib implementation
is irq safe.

Signed-off-by: Grygorii Strashko <[e-mail]>
Signed-off-by: Linus Walleij <[e-mail]>

drivers/gpio/gpio-pxa.c

···
 			for_each_set_bit(n, &gedr, BITS_PER_LONG) {
 				loop = 1;
 
-				generic_handle_irq(gpio_to_irq(gpio + n));
+				generic_handle_irq(
+					irq_find_mapping(pchip->irqdomain,
+							 gpio + n));
 			}
 		}
 		handled += loop;
···
 	struct pxa_gpio_chip *pchip = d;
 
 	if (in_irq == pchip->irq0) {
-		generic_handle_irq(gpio_to_irq(0));
+		generic_handle_irq(irq_find_mapping(pchip->irqdomain, 0));
 	} else if (in_irq == pchip->irq1) {
-		generic_handle_irq(gpio_to_irq(1));
+		generic_handle_irq(irq_find_mapping(pchip->irqdomain, 1));
 	} else {
 		pr_err("%s() unknown irq %d\n", __func__, in_irq);
 		return IRQ_NONE;