AM33XX has 4 gpio banks, thus the valid gpio range should be 0 ... 127.
Signed-off-by: Axel Lin axel.lin@ingics.com --- v2: define OMAP_MAX_GPIO and use it. This change is mainly based on Stefan's comment, however I use OMAP_MAX_GPIO instead of CONFIG_OMAP_MAX_GPIO because having CONFIG_ prefix seems meaning it can be configurable in configs.
drivers/gpio/omap_gpio.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/omap_gpio.c b/drivers/gpio/omap_gpio.c index a30d7f0..6fa57c9 100644 --- a/drivers/gpio/omap_gpio.c +++ b/drivers/gpio/omap_gpio.c @@ -40,6 +40,12 @@ #include <asm/io.h> #include <asm/errno.h>
+#if defined(CONFIG_AM33XX) +#define OMAP_MAX_GPIO 128 +#else +#define OMAP_MAX_GPIO 192 +#endif + #define OMAP_GPIO_DIR_OUT 0 #define OMAP_GPIO_DIR_IN 1
@@ -55,7 +61,7 @@ static inline int get_gpio_index(int gpio)
int gpio_is_valid(int gpio) { - return (gpio >= 0) && (gpio < 192); + return (gpio >= 0) && (gpio < OMAP_MAX_GPIO); }
static int check_gpio(int gpio)