m68k: define a local gpio_request_one() function

Compiling for linux-3.9-rc1 and later fails with:

drivers/gpio/devres.c: In function 'devm_gpio_request_one':
drivers/gpio/devres.c:90:2: error: implicit declaration of function 'gpio_request_one' [-Werror=implicit-function-declaration]

So provide a local gpio_request_one() function. Code largely borrowed from
blackfin's local gpio_request_one() function.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/m68k/include/asm/gpio.h b/arch/m68k/include/asm/gpio.h
index 4395ffc51fdbc4739ae5f22257c42a6f76b06a41..8cc83431805b73eb44d777d8749e6fc3de66fbbe 100644 (file)
--- a/arch/m68k/include/asm/gpio.h
+++ b/arch/m68k/include/asm/gpio.h
@@ -86,4 +86,24 @@ static inline int gpio_cansleep(unsigned gpio)
        return gpio < MCFGPIO_PIN_MAX ? 0 : __gpio_cansleep(gpio);
 }
 
+static inline int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
+{
+       int err;
+
+       err = gpio_request(gpio, label);
+       if (err)
+               return err;
+
+       if (flags & GPIOF_DIR_IN)
+               err = gpio_direction_input(gpio);
+       else
+               err = gpio_direction_output(gpio,
+                       (flags & GPIOF_INIT_HIGH) ? 1 : 0);
+
+       if (err)
+               gpio_free(gpio);
+
+       return err;
+}
+
 #endif