gpio: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Preparatory patch for the removal of the 'irq' argument from irq flow
handlers.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index ec1eb1b7250f..0f740276ed2b 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -275,8 +275,8 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat)
 static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc)
 {
         u32 irq_stat;
-        struct mxc_gpio_port *port = irq_get_handler_data(irq);
-        struct irq_chip *chip = irq_get_chip(irq);
+        struct mxc_gpio_port *port = irq_desc_get_handler_data(desc);
+        struct irq_chip *chip = irq_desc_get_chip(desc);
 
         chained_irq_enter(chip, desc);
 
@@ -292,7 +292,7 @@ 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);
+        struct irq_chip *chip = irq_desc_get_chip(desc);
 
         chained_irq_enter(chip, desc);