diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/wm831x-gpio.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/drivers/gpio/wm831x-gpio.c b/drivers/gpio/wm831x-gpio.c index b4468b616890..c5a00f7a7bf0 100644 --- a/drivers/gpio/wm831x-gpio.c +++ b/drivers/gpio/wm831x-gpio.c @@ -60,23 +60,31 @@ static int wm831x_gpio_get(struct gpio_chip *chip, unsigned offset) return 0; } -static int wm831x_gpio_direction_out(struct gpio_chip *chip, - unsigned offset, int value) +static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value) { struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip); struct wm831x *wm831x = wm831x_gpio->wm831x; - return wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset, - WM831X_GPN_DIR | WM831X_GPN_TRI, 0); + wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset, + value << offset); } -static void wm831x_gpio_set(struct gpio_chip *chip, unsigned offset, int value) +static int wm831x_gpio_direction_out(struct gpio_chip *chip, + unsigned offset, int value) { struct wm831x_gpio *wm831x_gpio = to_wm831x_gpio(chip); struct wm831x *wm831x = wm831x_gpio->wm831x; + int ret; - wm831x_set_bits(wm831x, WM831X_GPIO_LEVEL, 1 << offset, - value << offset); + ret = wm831x_set_bits(wm831x, WM831X_GPIO1_CONTROL + offset, + WM831X_GPN_DIR | WM831X_GPN_TRI, 0); + if (ret < 0) + return ret; + + /* Can only set GPIO state once it's in output mode */ + wm831x_gpio_set(chip, offset, value); + + return 0; } static int wm831x_gpio_to_irq(struct gpio_chip *chip, unsigned offset) |