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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-31 20:38:35 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-31 20:38:35 +0300 |
| commit | 702c31e8564c386dd5e304e46cf22fcaa40b1a66 (patch) | |
| tree | fabfaead168fc73edf6ca4b25f153fab9e16b9ab /drivers/acpi/device_pm.c | |
| parent | 72cea7ac5f14ee25cb96c7863a05223ba5a2c9a9 (diff) | |
| parent | d491f2b75237ef37d8867830ab7fad8d9659e853 (diff) | |
| download | linux-702c31e8564c386dd5e304e46cf22fcaa40b1a66.tar.xz | |
Merge tag 'pm-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix three issues in the system-wide suspend and hibernation area
related to PCI device PM handling by suspend-to-idle, device wakeup
optimizations and arbitrary differences between suspend and
hiberantion.
Specifics:
- Modify the PCI bus type's PM code to avoid putting devices left by
their drivers in D0 on purpose during suspend to idle into
low-power states as doing that may confuse the system resume
callbacks of the drivers in question (Rafael Wysocki).
- Avoid checking ACPI wakeup configuration during system-wide suspend
for suspended devices that do not use ACPI-based wakeup to allow
them to stay in suspend more often (Rafael Wysocki).
- The last phase of hibernation is analogous to system-wide suspend
also because on platforms with ACPI it passes control to the
platform firmware to complete the transision, so make it indicate
that by calling pm_set_suspend_via_firmware() to allow the drivers
that care about this to do the right thing (Rafael Wysocki)"
* tag 'pm-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PCI: PM: Avoid possible suspend-to-idle issue
ACPI: PM: Call pm_set_suspend_via_firmware() during hibernation
ACPI/PCI: PM: Add missing wakeup.flags.valid checks
Diffstat (limited to 'drivers/acpi/device_pm.c')
| -rw-r--r-- | drivers/acpi/device_pm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index adc8979b02b6..e54956ae93d3 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -944,8 +944,8 @@ static bool acpi_dev_needs_resume(struct device *dev, struct acpi_device *adev) u32 sys_target = acpi_target_system_state(); int ret, state; - if (!pm_runtime_suspended(dev) || !adev || - device_may_wakeup(dev) != !!adev->wakeup.prepare_count) + if (!pm_runtime_suspended(dev) || !adev || (adev->wakeup.flags.valid && + device_may_wakeup(dev) != !!adev->wakeup.prepare_count)) return true; if (sys_target == ACPI_STATE_S0) |