diff options
Diffstat (limited to 'drivers/gpio/gpio-mvebu.c')
| -rw-r--r-- | drivers/gpio/gpio-mvebu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c index 3b1fd1ce460f..d42509422394 100644 --- a/drivers/gpio/gpio-mvebu.c +++ b/drivers/gpio/gpio-mvebu.c @@ -44,6 +44,7 @@ #include <linux/of_device.h> #include <linux/clk.h> #include <linux/pinctrl/consumer.h> +#include <linux/irqchip/chained_irq.h> /* * GPIO unit register offsets. @@ -438,12 +439,15 @@ static int mvebu_gpio_irq_set_type(struct irq_data *d, unsigned int type) static void mvebu_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) { struct mvebu_gpio_chip *mvchip = irq_get_handler_data(irq); + struct irq_chip *chip = irq_desc_get_chip(desc); u32 cause, type; int i; if (mvchip == NULL) return; + chained_irq_enter(chip, desc); + cause = readl_relaxed(mvebu_gpioreg_data_in(mvchip)) & readl_relaxed(mvebu_gpioreg_level_mask(mvchip)); cause |= readl_relaxed(mvebu_gpioreg_edge_cause(mvchip)) & @@ -466,8 +470,11 @@ static void mvebu_gpio_irq_handler(unsigned int irq, struct irq_desc *desc) polarity ^= 1 << i; writel_relaxed(polarity, mvebu_gpioreg_in_pol(mvchip)); } + generic_handle_irq(irq); } + + chained_irq_exit(chip, desc); } #ifdef CONFIG_DEBUG_FS |