[PATCH v2 3/7] pinctrl: samsung: Constify "struct irq_chip *" parameter in to_exynos_irq_chip()

to_exynos_irq_chip() doesn't modify its 'chip' parameter.

So change the prototype of this function to accept const struct irq_chip
pointer.

Signed-off-by: Christophe JAILLET <[email protected]>
---
Compile tested only

Changes in v2:
   - New patch

v1: none
---
 drivers/pinctrl/samsung/pinctrl-exynos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index 81fe0b08a9af..e8b2d47ebe45 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -50,7 +50,7 @@ static u32 eint_wake_mask_values[MAX_WAKEUP_REG] = { EXYNOS_EINT_WAKEUP_MASK_DIS
 						     EXYNOS_EINT_WAKEUP_MASK_DISABLED,
 						     EXYNOS_EINT_WAKEUP_MASK_DISABLED};
 
-static inline struct exynos_irq_chip *to_exynos_irq_chip(struct irq_chip *chip)
+static inline struct exynos_irq_chip *to_exynos_irq_chip(const struct irq_chip *chip)
 {
 	return container_of(chip, struct exynos_irq_chip, chip);
 }
-- 
2.54.0