diff options
Diffstat (limited to 'drivers/gpio/gpio-twl4030.c')
| -rw-r--r-- | drivers/gpio/gpio-twl4030.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c index 4d330e36da1d..28d987661146 100644 --- a/drivers/gpio/gpio-twl4030.c +++ b/drivers/gpio/gpio-twl4030.c @@ -300,7 +300,7 @@ static int twl_direction_in(struct gpio_chip *chip, unsigned offset) if (offset < TWL4030_GPIO_MAX) ret = twl4030_set_gpio_direction(offset, 1); else - ret = -EINVAL; + ret = -EINVAL; /* LED outputs can't be set as input */ if (!ret) priv->direction &= ~BIT(offset); @@ -354,17 +354,27 @@ static void twl_set(struct gpio_chip *chip, unsigned offset, int value) static int twl_direction_out(struct gpio_chip *chip, unsigned offset, int value) { struct gpio_twl4030_priv *priv = to_gpio_twl4030(chip); + int ret = 0; mutex_lock(&priv->mutex); - if (offset < TWL4030_GPIO_MAX) - twl4030_set_gpio_dataout(offset, value); + if (offset < TWL4030_GPIO_MAX) { + ret = twl4030_set_gpio_direction(offset, 0); + if (ret) { + mutex_unlock(&priv->mutex); + return ret; + } + } + + /* + * LED gpios i.e. offset >= TWL4030_GPIO_MAX are always output + */ priv->direction |= BIT(offset); mutex_unlock(&priv->mutex); twl_set(chip, offset, value); - return 0; + return ret; } static int twl_to_irq(struct gpio_chip *chip, unsigned offset) |