diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/pinctrl.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/base/pinctrl.c b/drivers/base/pinctrl.c index 67a274e86727..5fb74b43848e 100644 --- a/drivers/base/pinctrl.c +++ b/drivers/base/pinctrl.c @@ -48,6 +48,25 @@ int pinctrl_bind_pins(struct device *dev) goto cleanup_get; } +#ifdef CONFIG_PM + /* + * If power management is enabled, we also look for the optional + * sleep and idle pin states, with semantics as defined in + * <linux/pinctrl/pinctrl-state.h> + */ + dev->pins->sleep_state = pinctrl_lookup_state(dev->pins->p, + PINCTRL_STATE_SLEEP); + if (IS_ERR(dev->pins->sleep_state)) + /* Not supplying this state is perfectly legal */ + dev_dbg(dev, "no sleep pinctrl state\n"); + + dev->pins->idle_state = pinctrl_lookup_state(dev->pins->p, + PINCTRL_STATE_IDLE); + if (IS_ERR(dev->pins->idle_state)) + /* Not supplying this state is perfectly legal */ + dev_dbg(dev, "no idle pinctrl state\n"); +#endif + return 0; /* |