pinctrl: samsung: Use define from dt-bindings for pin mux function

We already have macros for values used by driver and Device Tree
sources for pin mux configuration.  Use them instead of duplicating
defines.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c
index 9ab8faf..d68d52d 100644
--- a/drivers/pinctrl/samsung/pinctrl-exynos.c
+++ b/drivers/pinctrl/samsung/pinctrl-exynos.c
@@ -31,6 +31,8 @@
 #include <linux/err.h>
 #include <linux/soc/samsung/exynos-pmu.h>
 
+#include <dt-bindings/pinctrl/samsung.h>
+
 #include "pinctrl-samsung.h"
 #include "pinctrl-exynos.h"
 
@@ -176,7 +178,7 @@ static int exynos_irq_request_resources(struct irq_data *irqd)
 
 	con = readl(bank->pctl_base + reg_con);
 	con &= ~(mask << shift);
-	con |= EXYNOS_EINT_FUNC << shift;
+	con |= EXYNOS_PIN_FUNC_EINT << shift;
 	writel(con, bank->pctl_base + reg_con);
 
 	spin_unlock_irqrestore(&bank->slock, flags);
@@ -204,7 +206,7 @@ static void exynos_irq_release_resources(struct irq_data *irqd)
 
 	con = readl(bank->pctl_base + reg_con);
 	con &= ~(mask << shift);
-	con |= FUNC_INPUT << shift;
+	con |= EXYNOS_PIN_FUNC_INPUT << shift;
 	writel(con, bank->pctl_base + reg_con);
 
 	spin_unlock_irqrestore(&bank->slock, flags);