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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-31 10:38:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-31 10:38:35 -0700
commit702c31e8564c386dd5e304e46cf22fcaa40b1a66 (patch)
treefabfaead168fc73edf6ca4b25f153fab9e16b9ab /kernel
parentMerge tag 'gcc-plugins-v5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux (diff)
parentPCI: PM: Avoid possible suspend-to-idle issue (diff)
downloadlinux-dev-702c31e8564c386dd5e304e46cf22fcaa40b1a66.tar.xz
linux-dev-702c31e8564c386dd5e304e46cf22fcaa40b1a66.zip
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 'kernel')
-rw-r--r--kernel/power/hibernate.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index c8c272df7154..97522630b1b6 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -129,7 +129,7 @@ static int hibernation_test(int level) { return 0; }
static int platform_begin(int platform_mode)
{
return (platform_mode && hibernation_ops) ?
- hibernation_ops->begin() : 0;
+ hibernation_ops->begin(PMSG_FREEZE) : 0;
}
/**
@@ -542,7 +542,7 @@ int hibernation_platform_enter(void)
* hibernation_ops->finish() before saving the image, so we should let
* the firmware know that we're going to enter the sleep state after all
*/
- error = hibernation_ops->begin();
+ error = hibernation_ops->begin(PMSG_HIBERNATE);
if (error)
goto Close;