Adds a macro to convert the GPIO signal passed as bank number
and signal to GPIO pin number.

Signed-off-by: Sudhakar Rajashekhara <[email protected]>
---
 arch/arm/mach-davinci/include/mach/gpio.h |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-davinci/include/mach/gpio.h 
b/arch/arm/mach-davinci/include/mach/gpio.h
index 4f032b3..f3b8ef8 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;
-- 
1.5.6

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