diff options
| -rw-r--r-- | drivers/acpi/acpi_lpss.c | 61 | ||||
| -rw-r--r-- | drivers/acpi/device_pm.c | 61 | ||||
| -rw-r--r-- | include/linux/acpi.h | 10 |
3 files changed, 61 insertions, 71 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index cf768608437e..8ea836857691 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -1094,16 +1094,62 @@ static int acpi_lpss_resume_noirq(struct device *dev) struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); int ret; - ret = acpi_subsys_resume_noirq(dev); + /* Follow acpi_subsys_resume_noirq(). */ + if (dev_pm_may_skip_resume(dev)) + return 0; + + if (dev_pm_smart_suspend_and_suspended(dev)) + pm_runtime_set_active(dev); + + ret = pm_generic_resume_noirq(dev); if (ret) return ret; - if (!dev_pm_may_skip_resume(dev) && pdata->dev_desc->resume_from_noirq) - ret = acpi_lpss_do_resume_early(dev); + if (!pdata->dev_desc->resume_from_noirq) + return 0; - return ret; + /* + * The driver's ->resume_early callback will be invoked by + * acpi_lpss_do_resume_early(), with the assumption that the driver + * really wanted to run that code in ->resume_noirq, but it could not + * run before acpi_dev_resume() and the driver expected the latter to be + * called in the "early" phase. + */ + return acpi_lpss_do_resume_early(dev); +} + +static int acpi_lpss_do_restore_early(struct device *dev) +{ + int ret = acpi_lpss_resume(dev); + + return ret ? ret : pm_generic_restore_early(dev); +} + +static int acpi_lpss_restore_early(struct device *dev) +{ + struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); + + if (pdata->dev_desc->resume_from_noirq) + return 0; + + return acpi_lpss_do_restore_early(dev); } +static int acpi_lpss_restore_noirq(struct device *dev) +{ + struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); + int ret; + + ret = pm_generic_restore_noirq(dev); + if (ret) + return ret; + + if (!pdata->dev_desc->resume_from_noirq) + return 0; + + /* This is analogous to what happens in acpi_lpss_resume_noirq(). */ + return acpi_lpss_do_restore_early(dev); +} #endif /* CONFIG_PM_SLEEP */ static int acpi_lpss_runtime_suspend(struct device *dev) @@ -1137,14 +1183,11 @@ static struct dev_pm_domain acpi_lpss_pm_domain = { .resume_noirq = acpi_lpss_resume_noirq, .resume_early = acpi_lpss_resume_early, .freeze = acpi_subsys_freeze, - .freeze_late = acpi_subsys_freeze_late, - .freeze_noirq = acpi_subsys_freeze_noirq, - .thaw_noirq = acpi_subsys_thaw_noirq, .poweroff = acpi_subsys_suspend, .poweroff_late = acpi_lpss_suspend_late, .poweroff_noirq = acpi_lpss_suspend_noirq, - .restore_noirq = acpi_lpss_resume_noirq, - .restore_early = acpi_lpss_resume_early, + .restore_noirq = acpi_lpss_restore_noirq, + .restore_early = acpi_lpss_restore_early, #endif .runtime_suspend = acpi_lpss_runtime_suspend, .runtime_resume = acpi_lpss_runtime_resume, diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 44172eb18d6e..52fc9042a107 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1073,7 +1073,7 @@ EXPORT_SYMBOL_GPL(acpi_subsys_suspend_noirq); * acpi_subsys_resume_noirq - Run the device driver's "noirq" resume callback. * @dev: Device to handle. */ -int acpi_subsys_resume_noirq(struct device *dev) +static int acpi_subsys_resume_noirq(struct device *dev) { if (dev_pm_may_skip_resume(dev)) return 0; @@ -1088,7 +1088,6 @@ int acpi_subsys_resume_noirq(struct device *dev) return pm_generic_resume_noirq(dev); } -EXPORT_SYMBOL_GPL(acpi_subsys_resume_noirq); /** * acpi_subsys_resume_early - Resume device using ACPI. @@ -1098,12 +1097,11 @@ EXPORT_SYMBOL_GPL(acpi_subsys_resume_noirq); * generic early resume procedure for it during system transition into the * working state. */ -int acpi_subsys_resume_early(struct device *dev) +static int acpi_subsys_resume_early(struct device *dev) { int ret = acpi_dev_resume(dev); return ret ? ret : pm_generic_resume_early(dev); } -EXPORT_SYMBOL_GPL(acpi_subsys_resume_early); /** * acpi_subsys_freeze - Run the device driver's freeze callback. @@ -1126,52 +1124,15 @@ int acpi_subsys_freeze(struct device *dev) EXPORT_SYMBOL_GPL(acpi_subsys_freeze); /** - * acpi_subsys_freeze_late - Run the device driver's "late" freeze callback. - * @dev: Device to handle. - */ -int acpi_subsys_freeze_late(struct device *dev) -{ - - if (dev_pm_smart_suspend_and_suspended(dev)) - return 0; - - return pm_generic_freeze_late(dev); -} -EXPORT_SYMBOL_GPL(acpi_subsys_freeze_late); - -/** - * acpi_subsys_freeze_noirq - Run the device driver's "noirq" freeze callback. - * @dev: Device to handle. - */ -int acpi_subsys_freeze_noirq(struct device *dev) -{ - - if (dev_pm_smart_suspend_and_suspended(dev)) - return 0; - - return pm_generic_freeze_noirq(dev); -} -EXPORT_SYMBOL_GPL(acpi_subsys_freeze_noirq); - -/** - * acpi_subsys_thaw_noirq - Run the device driver's "noirq" thaw callback. - * @dev: Device to handle. + * acpi_subsys_restore_early - Restore device using ACPI. + * @dev: Device to restore. */ -int acpi_subsys_thaw_noirq(struct device *dev) +int acpi_subsys_restore_early(struct device *dev) { - /* - * If the device is in runtime suspend, the "thaw" code may not work - * correctly with it, so skip the driver callback and make the PM core - * skip all of the subsequent "thaw" callbacks for the device. - */ - if (dev_pm_smart_suspend_and_suspended(dev)) { - dev_pm_skip_next_resume_phases(dev); - return 0; - } - - return pm_generic_thaw_noirq(dev); + int ret = acpi_dev_resume(dev); + return ret ? ret : pm_generic_restore_early(dev); } -EXPORT_SYMBOL_GPL(acpi_subsys_thaw_noirq); +EXPORT_SYMBOL_GPL(acpi_subsys_restore_early); #endif /* CONFIG_PM_SLEEP */ static struct dev_pm_domain acpi_general_pm_domain = { @@ -1187,14 +1148,10 @@ static struct dev_pm_domain acpi_general_pm_domain = { .resume_noirq = acpi_subsys_resume_noirq, .resume_early = acpi_subsys_resume_early, .freeze = acpi_subsys_freeze, - .freeze_late = acpi_subsys_freeze_late, - .freeze_noirq = acpi_subsys_freeze_noirq, - .thaw_noirq = acpi_subsys_thaw_noirq, .poweroff = acpi_subsys_suspend, .poweroff_late = acpi_subsys_suspend_late, .poweroff_noirq = acpi_subsys_suspend_noirq, - .restore_noirq = acpi_subsys_resume_noirq, - .restore_early = acpi_subsys_resume_early, + .restore_early = acpi_subsys_restore_early, #endif }, }; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d315d86844e4..ea7415440901 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -918,26 +918,16 @@ int acpi_subsys_prepare(struct device *dev); void acpi_subsys_complete(struct device *dev); int acpi_subsys_suspend_late(struct device *dev); int acpi_subsys_suspend_noirq(struct device *dev); -int acpi_subsys_resume_noirq(struct device *dev); -int acpi_subsys_resume_early(struct device *dev); int acpi_subsys_suspend(struct device *dev); int acpi_subsys_freeze(struct device *dev); -int acpi_subsys_freeze_late(struct device *dev); -int acpi_subsys_freeze_noirq(struct device *dev); -int acpi_subsys_thaw_noirq(struct device *dev); #else static inline int acpi_dev_resume_early(struct device *dev) { return 0; } static inline int acpi_subsys_prepare(struct device *dev) { return 0; } static inline void acpi_subsys_complete(struct device *dev) {} static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; } static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; } -static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; } -static inline int acpi_subsys_resume_early(struct device *dev) { return 0; } static inline int acpi_subsys_suspend(struct device *dev) { return 0; } static inline int acpi_subsys_freeze(struct device *dev) { return 0; } -static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; } -static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; } -static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; } #endif #ifdef CONFIG_ACPI |