diff options
Diffstat (limited to 'drivers/gpio/gpio-pl061.c')
| -rw-r--r-- | drivers/gpio/gpio-pl061.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c index 5b1461f6aeed..179339739d60 100644 --- a/drivers/gpio/gpio-pl061.c +++ b/drivers/gpio/gpio-pl061.c @@ -152,12 +152,6 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger) if (offset < 0 || offset >= PL061_GPIO_NR) return -EINVAL; - spin_lock_irqsave(&chip->lock, flags); - - gpioiev = readb(chip->base + GPIOIEV); - gpiois = readb(chip->base + GPIOIS); - gpioibe = readb(chip->base + GPIOIBE); - if ((trigger & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) && (trigger & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))) { @@ -168,6 +162,13 @@ static int pl061_irq_type(struct irq_data *d, unsigned trigger) return -EINVAL; } + + spin_lock_irqsave(&chip->lock, flags); + + gpioiev = readb(chip->base + GPIOIEV); + gpiois = readb(chip->base + GPIOIS); + gpioibe = readb(chip->base + GPIOIBE); + if (trigger & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) { bool polarity = trigger & IRQ_TYPE_LEVEL_HIGH; |