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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-11-06 13:54:47 +0100 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-11-06 13:54:47 +0100 |
commit | 69a10ca747c2d2d7c0354a883335e097c067ed35 (patch) | |
tree | a8b1f56f95af55a4d9bd826b7e5e6d31b8cd6b98 /drivers/acpi/device_pm.c | |
parent | 96428e98aebe5db8a164711f102808651c7f518d (diff) | |
parent | a192aa923b66a435aae56983c4912ee150bc9b32 (diff) | |
download | linux-69a10ca747c2d2d7c0354a883335e097c067ed35.tar.bz2 |
Merge branch 'acpi-pm' into pm-core
Diffstat (limited to 'drivers/acpi/device_pm.c')
-rw-r--r-- | drivers/acpi/device_pm.c | 65 |
1 files changed, 15 insertions, 50 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 764b8dfa04aa..17e8eb93a76c 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -581,8 +581,7 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev, d_min = ret; wakeup = device_may_wakeup(dev) && adev->wakeup.flags.valid && adev->wakeup.sleep_state >= target_state; - } else if (dev_pm_qos_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP) != - PM_QOS_FLAGS_NONE) { + } else { wakeup = adev->wakeup.flags.valid; } @@ -848,38 +847,39 @@ static int acpi_dev_pm_full_power(struct acpi_device *adev) } /** - * acpi_dev_runtime_suspend - Put device into a low-power state using ACPI. + * acpi_dev_suspend - Put device into a low-power state using ACPI. * @dev: Device to put into a low-power state. + * @wakeup: Whether or not to enable wakeup for the device. * - * Put the given device into a runtime low-power state using the standard ACPI + * Put the given device into a low-power state using the standard ACPI * mechanism. Set up remote wakeup if desired, choose the state to put the * device into (this checks if remote wakeup is expected to work too), and set * the power state of the device. */ -int acpi_dev_runtime_suspend(struct device *dev) +int acpi_dev_suspend(struct device *dev, bool wakeup) { struct acpi_device *adev = ACPI_COMPANION(dev); - bool remote_wakeup; + u32 target_state = acpi_target_system_state(); int error; if (!adev) return 0; - remote_wakeup = dev_pm_qos_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP) > - PM_QOS_FLAGS_NONE; - if (remote_wakeup) { - error = acpi_device_wakeup_enable(adev, ACPI_STATE_S0); + if (wakeup && acpi_device_can_wakeup(adev)) { + error = acpi_device_wakeup_enable(adev, target_state); if (error) return -EAGAIN; + } else { + wakeup = false; } - error = acpi_dev_pm_low_power(dev, adev, ACPI_STATE_S0); - if (error && remote_wakeup) + error = acpi_dev_pm_low_power(dev, adev, target_state); + if (error && wakeup) acpi_device_wakeup_disable(adev); return error; } -EXPORT_SYMBOL_GPL(acpi_dev_runtime_suspend); +EXPORT_SYMBOL_GPL(acpi_dev_suspend); /** * acpi_dev_resume - Put device into the full-power state using ACPI. @@ -912,7 +912,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_resume); int acpi_subsys_runtime_suspend(struct device *dev) { int ret = pm_generic_runtime_suspend(dev); - return ret ? ret : acpi_dev_runtime_suspend(dev); + return ret ? ret : acpi_dev_suspend(dev, true); } EXPORT_SYMBOL_GPL(acpi_subsys_runtime_suspend); @@ -931,41 +931,6 @@ int acpi_subsys_runtime_resume(struct device *dev) EXPORT_SYMBOL_GPL(acpi_subsys_runtime_resume); #ifdef CONFIG_PM_SLEEP -/** - * acpi_dev_suspend_late - Put device into a low-power state using ACPI. - * @dev: Device to put into a low-power state. - * - * Put the given device into a low-power state during system transition to a - * sleep state using the standard ACPI mechanism. Set up system wakeup if - * desired, choose the state to put the device into (this checks if system - * wakeup is expected to work too), and set the power state of the device. - */ -int acpi_dev_suspend_late(struct device *dev) -{ - struct acpi_device *adev = ACPI_COMPANION(dev); - u32 target_state; - bool wakeup; - int error; - - if (!adev) - return 0; - - target_state = acpi_target_system_state(); - wakeup = device_may_wakeup(dev) && acpi_device_can_wakeup(adev); - if (wakeup) { - error = acpi_device_wakeup_enable(adev, target_state); - if (error) - return error; - } - - error = acpi_dev_pm_low_power(dev, adev, target_state); - if (error && wakeup) - acpi_device_wakeup_disable(adev); - - return error; -} -EXPORT_SYMBOL_GPL(acpi_dev_suspend_late); - static bool acpi_dev_needs_resume(struct device *dev, struct acpi_device *adev) { u32 sys_target = acpi_target_system_state(); @@ -1048,7 +1013,7 @@ EXPORT_SYMBOL_GPL(acpi_subsys_suspend); int acpi_subsys_suspend_late(struct device *dev) { int ret = pm_generic_suspend_late(dev); - return ret ? ret : acpi_dev_suspend_late(dev); + return ret ? ret : acpi_dev_suspend(dev, device_may_wakeup(dev)); } EXPORT_SYMBOL_GPL(acpi_subsys_suspend_late); |