diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-brcmstb.c | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/drivers/gpio/gpio-brcmstb.c b/drivers/gpio/gpio-brcmstb.c index 2031b73e066c..fd8c0412f8af 100644 --- a/drivers/gpio/gpio-brcmstb.c +++ b/drivers/gpio/gpio-brcmstb.c @@ -63,6 +63,21 @@ brcmstb_gpio_gc_to_priv(struct gpio_chip *gc) return bank->parent_priv; } +static unsigned long +brcmstb_gpio_get_active_irqs(struct brcmstb_gpio_bank *bank) +{ + void __iomem *reg_base = bank->parent_priv->reg_base; + unsigned long status; + unsigned long flags; + + spin_lock_irqsave(&bank->gc.bgpio_lock, flags); + status = bank->gc.read_reg(reg_base + GIO_STAT(bank->id)) & + bank->gc.read_reg(reg_base + GIO_MASK(bank->id)); + spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags); + + return status; +} + static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank, unsigned int offset, bool enable) { @@ -204,11 +219,8 @@ static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank) struct irq_domain *irq_domain = bank->gc.irqdomain; void __iomem *reg_base = priv->reg_base; unsigned long status; - unsigned long flags; - spin_lock_irqsave(&bank->gc.bgpio_lock, flags); - while ((status = bank->gc.read_reg(reg_base + GIO_STAT(bank->id)) & - bank->gc.read_reg(reg_base + GIO_MASK(bank->id)))) { + while ((status = brcmstb_gpio_get_active_irqs(bank))) { int bit; for_each_set_bit(bit, &status, 32) { @@ -223,7 +235,6 @@ static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank) generic_handle_irq(irq_find_mapping(irq_domain, bit)); } } - spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags); } /* Each UPG GIO block has one IRQ for all banks */ |