diff options
| -rw-r--r-- | drivers/pinctrl/pinctrl-abx500.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c index 823e261b4d85..363712bad7ef 100644 --- a/drivers/pinctrl/pinctrl-abx500.c +++ b/drivers/pinctrl/pinctrl-abx500.c @@ -725,7 +725,7 @@ static int abx500_pin_config_set(struct pinctrl_dev *pctldev, struct pullud *pullud = pct->soc->pullud; struct gpio_chip *chip = &pct->chip; unsigned offset; - int ret; + int ret = 0; enum pin_config_param param = pinconf_to_config_param(config); enum pin_config_param argument = pinconf_to_config_argument(config); @@ -763,6 +763,28 @@ static int abx500_pin_config_set(struct pinctrl_dev *pctldev, offset, argument ? 0 : 1); break; + case PIN_CONFIG_BIAS_PULL_UP: + /* + * if argument = 1 set the pull up + * else clear the pull up + */ + ret = abx500_gpio_direction_input(chip, offset); + /* + * Some chips only support pull down, while some actually + * support both pull up and pull down. Such chips have + * a "pullud" range specified for the pins that support + * both features. If the pin is not within that range, do + * nothing + */ + if (pullud && + pin >= pullud->first_pin && + pin <= pullud->last_pin) { + ret = abx500_config_pull_updown(pct, + pin, + argument ? ABX500_GPIO_PULL_UP : ABX500_GPIO_PULL_NONE); + } + break; + case PIN_CONFIG_OUTPUT: ret = abx500_gpio_direction_output(chip, offset, argument); |