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gpio: pch: Use for_each_set_bit() in IRQ handler 

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 502ae42ca6
commit 9be93e1ab7
1 changed files with 6 additions and 8 deletions
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14
drivers/gpio/gpio-pch.c
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@ -313,16 +313,14 @@ static void pch_irq_ack(struct irq_data *d)
static irqreturn_t pch_gpio_handler(int irq, void *dev_id)
{
struct pch_gpio *chip = dev_id;
u32 reg_val = ioread32(&chip->reg->istatus);
unsigned long reg_val = ioread32(&chip->reg->istatus);
int i, ret = IRQ_NONE;
for (i = 0; i < gpio_pins[chip->ioh]; i++) {
if (reg_val & BIT(i)) {
dev_dbg(chip->dev, "%s:[%d]:irq=%d status=0x%x\n",
__func__, i, irq, reg_val);
generic_handle_irq(chip->irq_base + i);
ret = IRQ_HANDLED;
}
for_each_set_bit(i, &reg_val, gpio_pins[chip->ioh]) {
dev_dbg(chip->dev, "%s:[%d]:irq=%d status=0x%lx\n", __func__,
i, irq, reg_val);
generic_handle_irq(chip->irq_base + i);
ret = IRQ_HANDLED;
}
return ret;
}