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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-11-17 03:28:53 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-11-21 22:48:10 +0100 |
| commit | 08b98d3291652bdcd1029a059e39fbcae5ad93e2 (patch) | |
| tree | 2a95ceced1563a46095f3c2e7c593dfccba606df /Documentation/power | |
| parent | 406e79385f3223d82272cf2be86bc95cd000a258 (diff) | |
| download | lwn-08b98d3291652bdcd1029a059e39fbcae5ad93e2.tar.gz lwn-08b98d3291652bdcd1029a059e39fbcae5ad93e2.zip | |
PM / sleep / ACPI: Use the ACPI_FADT_LOW_POWER_S0 flag
Modify the ACPI system sleep support setup code to select
suspend-to-idle as the default system sleep state if the
ACPI_FADT_LOW_POWER_S0 flag is set in the FADT and the
default sleep state was not selected from the kernel command
line.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mario Limonciello <mario.limonciello@dell.com>
Diffstat (limited to 'Documentation/power')
| -rw-r--r-- | Documentation/power/states.txt | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/power/states.txt b/Documentation/power/states.txt index 008ecb588317..8a39ce45d8a0 100644 --- a/Documentation/power/states.txt +++ b/Documentation/power/states.txt @@ -35,7 +35,9 @@ only one way to cause the system to go into the Suspend-To-RAM state (write The default suspend mode (ie. the one to be used without writing anything into /sys/power/mem_sleep) is either "deep" (if Suspend-To-RAM is supported) or "s2idle", but it can be overridden by the value of the "mem_sleep_default" -parameter in the kernel command line. +parameter in the kernel command line. On some ACPI-based systems, depending on +the information in the FADT, the default may be "s2idle" even if Suspend-To-RAM +is supported. The properties of all of the sleep states are described below. |