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authorLars-Peter Clausen <lars@metafoo.de>2014-08-18 13:54:55 +0400
committerLinus Walleij <linus.walleij@linaro.org>2014-08-29 10:31:57 +0400
commit5a2533a7478334593c50284fd414c70b3b9217c0 (patch)
treea14c0439a5193c28f7779e9ff2421336e1db7491 /drivers/gpio/gpio-zynq.c
parenta879891ee80413f6999905db43ad0d6852dfa6ca (diff)
downloadlinux-5a2533a7478334593c50284fd414c70b3b9217c0.tar.xz
gpio: zynq: Reduce level of indention in zynq_gpio_irqhandler()
zynq_gpio_irqhandler() uses up to 7 tabs of indention in some parts. Refactor things to use a helper function for the inner loop to reduce the indention to a sane level. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-zynq.c')
-rw-r--r--drivers/gpio/gpio-zynq.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c
index 6e5146c8e254..36034b6811bb 100644
--- a/drivers/gpio/gpio-zynq.c
+++ b/drivers/gpio/gpio-zynq.c
@@ -457,6 +457,24 @@ static struct irq_chip zynq_gpio_edge_irqchip = {
.irq_set_wake = zynq_gpio_set_wake,
};
+static void zynq_gpio_handle_bank_irq(struct zynq_gpio *gpio,
+ unsigned int bank_num,
+ unsigned long pending)
+{
+ struct irq_domain *irqdomain = gpio->chip.irqdomain;
+ int offset;
+
+ if (!pending)
+ return;
+
+ for_each_set_bit(offset, &pending, 32) {
+ unsigned int gpio_irq;
+
+ gpio_irq = irq_find_mapping(irqdomain, offset);
+ generic_handle_irq(gpio_irq);
+ }
+}
+
/**
* zynq_gpio_irqhandler - IRQ handler for the gpio banks of a gpio device
* @irq: irq number of the gpio bank where interrupt has occurred
@@ -482,18 +500,7 @@ static void zynq_gpio_irqhandler(unsigned int irq, struct irq_desc *desc)
ZYNQ_GPIO_INTSTS_OFFSET(bank_num));
int_enb = readl_relaxed(gpio->base_addr +
ZYNQ_GPIO_INTMASK_OFFSET(bank_num));
- int_sts &= ~int_enb;
- if (int_sts) {
- int offset;
- unsigned long pending = int_sts;
-
- for_each_set_bit(offset, &pending, 32) {
- unsigned int gpio_irq =
- irq_find_mapping(gpio->chip.irqdomain,
- offset);
- generic_handle_irq(gpio_irq);
- }
- }
+ zynq_gpio_handle_bank_irq(gpio, bank_num, int_sts & ~int_enb);
}
chained_irq_exit(irqchip, desc);