1 files changed, 8 insertions, 5 deletions

diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h
index ae074556831..f3b8ef87815 100644
--- a/arch/arm/mach-davinci/include/mach/gpio.h
+++ b/arch/arm/mach-davinci/include/mach/gpio.h
@@ -42,6 +42,9 @@
  */
 #define GPIO(X)         (X)             /* 0 <= X <= (DAVINCI_N_GPIO - 1) */
 
+/* Convert GPIO signal to GPIO pin number */
+#define GPIO_TO_PIN(bank, gpio) (16 * (bank) + (gpio))
+
 struct gpio_controller {
         u32     dir;
         u32     out_data;
@@ -78,6 +81,8 @@ __gpio_to_controller(unsigned gpio)
                 ptr = base + 0x60;
         else if (gpio < 32 * 4)
                 ptr = base + 0x88;
+        else if (gpio < 32 * 5)
+                ptr = base + 0xb0;
         else
                 ptr = NULL;
         return ptr;
@@ -142,15 +147,13 @@ static inline int gpio_cansleep(unsigned gpio)
 
 static inline int gpio_to_irq(unsigned gpio)
 {
-        if (gpio >= DAVINCI_N_GPIO)
-                return -EINVAL;
-        return davinci_soc_info.intc_irq_num + gpio;
+        return __gpio_to_irq(gpio);
 }
 
 static inline int irq_to_gpio(unsigned irq)
 {
-        /* caller guarantees gpio_to_irq() succeeded */
-        return irq - davinci_soc_info.intc_irq_num;
+        /* don't support the reverse mapping */
+        return -ENOSYS;
 }
 
 #endif                          /* __DAVINCI_GPIO_H */