diff options
Diffstat (limited to 'drivers/pinctrl/core.c')
| -rw-r--r-- | drivers/pinctrl/core.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 1f9608bd237e..dca9208f5463 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1196,6 +1196,67 @@ int pinctrl_force_default(struct pinctrl_dev *pctldev) } EXPORT_SYMBOL_GPL(pinctrl_force_default); +#ifdef CONFIG_PM + +/** + * pinctrl_pm_select_default_state() - select default pinctrl state for PM + * @dev: device to select default state for + */ +int pinctrl_pm_select_default_state(struct device *dev) +{ + struct dev_pin_info *pins = dev->pins; + int ret; + + if (!pins) + return 0; + if (IS_ERR(pins->default_state)) + return 0; /* No default state */ + ret = pinctrl_select_state(pins->p, pins->default_state); + if (ret) + dev_err(dev, "failed to activate default pinctrl state\n"); + return ret; +} + +/** + * pinctrl_pm_select_sleep_state() - select sleep pinctrl state for PM + * @dev: device to select sleep state for + */ +int pinctrl_pm_select_sleep_state(struct device *dev) +{ + struct dev_pin_info *pins = dev->pins; + int ret; + + if (!pins) + return 0; + if (IS_ERR(pins->sleep_state)) + return 0; /* No sleep state */ + ret = pinctrl_select_state(pins->p, pins->sleep_state); + if (ret) + dev_err(dev, "failed to activate pinctrl sleep state\n"); + return ret; +} + +/** + * pinctrl_pm_select_idle_state() - select idle pinctrl state for PM + * @dev: device to select idle state for + */ +int pinctrl_pm_select_idle_state(struct device *dev) +{ + struct dev_pin_info *pins = dev->pins; + int ret; + + if (!pins) + return 0; + if (IS_ERR(pins->idle_state)) + return 0; /* No idle state */ + ret = pinctrl_select_state(pins->p, pins->idle_state); + if (ret) + dev_err(dev, "failed to activate pinctrl idle state\n"); + return ret; +} + +#endif + #ifdef CONFIG_DEBUG_FS static int pinctrl_pins_show(struct seq_file *s, void *what) |