UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

gpio: crystalcove: 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>
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpio/gpio-crystalcove.c
View File

@ -279,8 +279,8 @@ static struct irq_chip crystalcove_irqchip = {
static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data) static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data)
{ {
struct crystalcove_gpio *cg = data; struct crystalcove_gpio *cg = data;
unsigned long pending;
unsigned int p0, p1; unsigned int p0, p1;
int pending;
int gpio; int gpio;
unsigned int virq; unsigned int virq;
@ -293,12 +293,10 @@ static irqreturn_t crystalcove_gpio_irq_handler(int irq, void *data)
pending = p0 | p1 << 8; pending = p0 | p1 << 8;
for (gpio = 0; gpio < CRYSTALCOVE_GPIO_NUM; gpio++) { for_each_set_bit(gpio, &pending, CRYSTALCOVE_GPIO_NUM) {
if (pending & BIT(gpio)) {
virq = irq_find_mapping(cg->chip.irq.domain, gpio); virq = irq_find_mapping(cg->chip.irq.domain, gpio);
handle_nested_irq(virq); handle_nested_irq(virq);
} }
}
return IRQ_HANDLED; return IRQ_HANDLED;
} }