diff options
Diffstat (limited to 'drivers/acpi/device_pm.c')
| -rw-r--r-- | drivers/acpi/device_pm.c | 58 |
1 files changed, 55 insertions, 3 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 52fc9042a107..6a9d41c44b70 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1133,6 +1133,58 @@ int acpi_subsys_restore_early(struct device *dev) return ret ? ret : pm_generic_restore_early(dev); } EXPORT_SYMBOL_GPL(acpi_subsys_restore_early); + +/** + * acpi_subsys_poweroff - Run the device driver's poweroff callback. + * @dev: Device to handle. + * + * Follow PCI and resume devices from runtime suspend before running their + * system poweroff callbacks, unless the driver can cope with runtime-suspended + * devices during system suspend and there are no ACPI-specific reasons for + * resuming them. + */ +int acpi_subsys_poweroff(struct device *dev) +{ + if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) || + acpi_dev_needs_resume(dev, ACPI_COMPANION(dev))) + pm_runtime_resume(dev); + + return pm_generic_poweroff(dev); +} +EXPORT_SYMBOL_GPL(acpi_subsys_poweroff); + +/** + * acpi_subsys_poweroff_late - Run the device driver's poweroff callback. + * @dev: Device to handle. + * + * Carry out the generic late poweroff procedure for @dev and use ACPI to put + * it into a low-power state during system transition into a sleep state. + */ +static int acpi_subsys_poweroff_late(struct device *dev) +{ + int ret; + + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + + ret = pm_generic_poweroff_late(dev); + if (ret) + return ret; + + return acpi_dev_suspend(dev, device_may_wakeup(dev)); +} + +/** + * acpi_subsys_poweroff_noirq - Run the driver's "noirq" poweroff callback. + * @dev: Device to suspend. + */ +static int acpi_subsys_poweroff_noirq(struct device *dev) +{ + if (dev_pm_smart_suspend_and_suspended(dev)) + return 0; + + return pm_generic_poweroff_noirq(dev); +} #endif /* CONFIG_PM_SLEEP */ static struct dev_pm_domain acpi_general_pm_domain = { @@ -1148,9 +1200,9 @@ 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, - .poweroff = acpi_subsys_suspend, - .poweroff_late = acpi_subsys_suspend_late, - .poweroff_noirq = acpi_subsys_suspend_noirq, + .poweroff = acpi_subsys_poweroff, + .poweroff_late = acpi_subsys_poweroff_late, + .poweroff_noirq = acpi_subsys_poweroff_noirq, .restore_early = acpi_subsys_restore_early, #endif }, |