pinctrl: at91: use locked variant of irq_set_handler

When setting the gpio irq type, use the __irq_set_handler_locked()
variant instead of the irq_set_handler() to prevent false
spinlock recursion warning.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable <stable@vger.kernel.org> # v3.12
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 38c6f8b9790e..d990e33d8aa7 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1286,22 +1286,22 @@ static int alt_gpio_irq_type(struct irq_data *d, unsigned type)
 
         switch (type) {
         case IRQ_TYPE_EDGE_RISING:
-                irq_set_handler(d->irq, handle_simple_irq);
+                __irq_set_handler_locked(d->irq, handle_simple_irq);
                 writel_relaxed(mask, pio + PIO_ESR);
                 writel_relaxed(mask, pio + PIO_REHLSR);
                 break;
         case IRQ_TYPE_EDGE_FALLING:
-                irq_set_handler(d->irq, handle_simple_irq);
+                __irq_set_handler_locked(d->irq, handle_simple_irq);
                 writel_relaxed(mask, pio + PIO_ESR);
                 writel_relaxed(mask, pio + PIO_FELLSR);
                 break;
         case IRQ_TYPE_LEVEL_LOW:
-                irq_set_handler(d->irq, handle_level_irq);
+                __irq_set_handler_locked(d->irq, handle_level_irq);
                 writel_relaxed(mask, pio + PIO_LSR);
                 writel_relaxed(mask, pio + PIO_FELLSR);
                 break;
         case IRQ_TYPE_LEVEL_HIGH:
-                irq_set_handler(d->irq, handle_level_irq);
+                __irq_set_handler_locked(d->irq, handle_level_irq);
                 writel_relaxed(mask, pio + PIO_LSR);
                 writel_relaxed(mask, pio + PIO_REHLSR);
                 break;
@@ -1310,7 +1310,7 @@ static int alt_gpio_irq_type(struct irq_data *d, unsigned type)
                  * disable additional interrupt modes:
                  * fall back to default behavior
                  */
-                irq_set_handler(d->irq, handle_simple_irq);
+                __irq_set_handler_locked(d->irq, handle_simple_irq);
                 writel_relaxed(mask, pio + PIO_AIMDR);
                 return 0;
         case IRQ_TYPE_NONE: