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gpio: sodaville: 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>
This commit is contained in:
Andy Shevchenko 2018-11-06 14:38:55 +02:00
parent 9be93e1ab7
commit f3af44f052
1 changed files with 3 additions and 6 deletions
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9
drivers/gpio/gpio-sodaville.c
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@ -80,18 +80,15 @@ static int sdv_gpio_pub_set_type(struct irq_data *d, unsigned int type)
static irqreturn_t sdv_gpio_pub_irq_handler(int irq, void *data)
{
struct sdv_gpio_chip_data *sd = data;
u32 irq_stat = readl(sd->gpio_pub_base + GPSTR);
unsigned long irq_stat = readl(sd->gpio_pub_base + GPSTR);
int irq_bit;
irq_stat &= readl(sd->gpio_pub_base + GPIO_INT);
if (!irq_stat)
return IRQ_NONE;
while (irq_stat) {
u32 irq_bit = __fls(irq_stat);
irq_stat &= ~BIT(irq_bit);
for_each_set_bit(irq_bit, &irq_stat, 32)
generic_handle_irq(irq_find_mapping(sd->id, irq_bit));
}
return IRQ_HANDLED;
}