gpio/mxc: add chained_irq_enter/exit() to mx2_gpio_irq_handler

Similar to commit

	0e44b6e (gpio/mxc: add chained_irq_enter/exit() to mx3_gpio_irq_handler())

. It doesn't seem to be critical to make the irqs work, but still it is
more correct.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 875a7c539591..3307f6db3a92 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -292,6 +292,9 @@ static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
         u32 irq_msk, irq_stat;
         struct mxc_gpio_port *port;
+        struct irq_chip *chip = irq_get_chip(irq);
+
+        chained_irq_enter(chip, desc);
 
         /* walk through all interrupt status registers */
         list_for_each_entry(port, &mxc_gpio_ports, node) {
@@ -303,6 +306,7 @@ static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc)
                 if (irq_stat)
                         mxc_gpio_irq_handler(port, irq_stat);
         }
+        chained_irq_exit(chip, desc);
 }
 
 /*