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-rw-r--r--drivers/gpio/gpio-mxs.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index af55a8577c2e..292b50481db9 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -49,6 +49,8 @@
#define GPIO_INT_LEV_MASK (1 << 0)
#define GPIO_INT_POL_MASK (1 << 1)
+#define irq_to_gpio(irq) ((irq) - MXS_GPIO_IRQ_START)
+
struct mxs_gpio_port {
void __iomem *base;
int id;