Blackfin: gpio: add a debounce stub

The GPIO API was extended recently to include debounce functions, but
since the on-chip Blackfin GPIO modules don't support this stuff, make
a stub in the non-GPIOLIB case so drivers build properly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h
index 0300c6a..1ef8417 100644 (file)
--- a/arch/blackfin/include/asm/gpio.h
+++ b/arch/blackfin/include/asm/gpio.h
@@ -279,6 +279,11 @@ static inline int gpio_direction_output(unsigned gpio, int value)
        return bfin_gpio_direction_output(gpio, value);
 }
 
+static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
+{
+       return -EINVAL;
+}
+
 static inline int gpio_get_value(unsigned gpio)
 {
        return bfin_gpio_get_value(gpio);