mfd: rdc321x: Fix off-by-one for ngpio setting

The valid gpio is GPIO0 ~ GPIO58, so ngpio should be 59.
This patch also renames RDC321X_MAX_GPIO to RDC321X_NUM_GPIO because it
actually means the number of available GPIOs.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mfd/rdc321x-southbridge.c b/drivers/mfd/rdc321x-southbridge.c
index c79569750be9..6575585f1d1f 100644
--- a/drivers/mfd/rdc321x-southbridge.c
+++ b/drivers/mfd/rdc321x-southbridge.c
@@ -38,7 +38,7 @@ static struct resource rdc321x_wdt_resource[] = {
 };
 
 static struct rdc321x_gpio_pdata rdc321x_gpio_pdata = {
-        .max_gpios      = RDC321X_MAX_GPIO,
+        .max_gpios      = RDC321X_NUM_GPIO,
 };
 
 static struct resource rdc321x_gpio_resources[] = {