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gpio: crystalcove: Use for_each_set_bit() in IRQ handler

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This simplifies and standardizes the AB IRQ handler by using
the for_each_set_bit() library function.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2018-11-06 14:38:55 +02:00
parent bfeffd1552
commit fcce88d9ca
1 changed files with 4 additions and 6 deletions
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10
drivers/gpio/gpio-crystalcove.c
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@ -279,8 +279,8 @@ static struct irq_chip crystalcove_irqchip = {
static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data)
{
struct crystalcove_gpio *cg = data;
unsigned long pending;
unsigned int p0, p1;
int pending;
int gpio;
unsigned int virq;
@ -293,11 +293,9 @@ static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data)
pending = p0 | p1 << 8;
for (gpio = 0; gpio < CRYSTALCOVE_GPIO_NUM; gpio++) {
if (pending & BIT(gpio)) {
virq = irq_find_mapping(cg->chip.irq.domain, gpio);
handle_nested_irq(virq);
}
for_each_set_bit(gpio, &pending, CRYSTALCOVE_GPIO_NUM) {
virq = irq_find_mapping(cg->chip.irq.domain, gpio);
handle_nested_irq(virq);
}
return IRQ_HANDLED;