mfd: WM835x GPIO direction register is not locked

No need to set the security key when writing to it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@kernel.org
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/wm8350-core.c b/drivers/mfd/wm8350-core.c
index 8485a70..9a970bd 100644
--- a/drivers/mfd/wm8350-core.c
+++ b/drivers/mfd/wm8350-core.c
@@ -134,8 +134,7 @@
 	    wm8350->reg_cache[WM8350_SECURITY] == WM8350_UNLOCK_KEY)
 		return 0;
 
-	if ((reg == WM8350_GPIO_CONFIGURATION_I_O) ||
-	    (reg >= WM8350_GPIO_FUNCTION_SELECT_1 &&
+	if ((reg >= WM8350_GPIO_FUNCTION_SELECT_1 &&
 	     reg <= WM8350_GPIO_FUNCTION_SELECT_4) ||
 	    (reg >= WM8350_BATTERY_CHARGER_CONTROL_1 &&
 	     reg <= WM8350_BATTERY_CHARGER_CONTROL_3))