gpiolib: Force wm831x GPIOs into GPIO mode when requested
This is the chip default but it's possible the bootloader or OTP
will have been configured to a different mode (eg, to provide
feedback during startup).
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/gpio/wm831x-gpio.c b/drivers/gpio/wm831x-gpio.c
index 5b8dc09..d09021f 100644
--- a/drivers/gpio/wm831x-gpio.c
+++ b/drivers/gpio/wm831x-gpio.c
@@ -44,7 +44,8 @@
val |= WM831X_GPN_TRI;
return wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset,
- WM831X_GPN_DIR | WM831X_GPN_TRI, val);
+ WM831X_GPN_DIR | WM831X_GPN_TRI |
+ WM831X_GPN_FN_MASK, val);
}
static int wm831x_gpio_get(struct gpio_chip *chip, unsigned offset)
@@ -84,7 +85,8 @@
val |= WM831X_GPN_TRI;
ret = wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset,
- WM831X_GPN_DIR | WM831X_GPN_TRI, val);
+ WM831X_GPN_DIR | WM831X_GPN_TRI |
+ WM831X_GPN_FN_MASK, val);
if (ret < 0)
return ret;