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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-10-07 00:49:34 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-10-14 02:17:33 +0200 |
| commit | ef25ba0476015908ef5960f9faac149ddf34ede0 (patch) | |
| tree | 00f955d56fc042f68954edaffd456dfe4ce26ad4 /drivers/acpi/sleep.c | |
| parent | c2df86ea924a8548f54ce90e46fdd6c9495119b2 (diff) | |
| download | linux-stable-ef25ba0476015908ef5960f9faac149ddf34ede0.tar.gz linux-stable-ef25ba0476015908ef5960f9faac149ddf34ede0.tar.bz2 linux-stable-ef25ba0476015908ef5960f9faac149ddf34ede0.zip | |
PM / sleep: Add flags to indicate platform firmware involvement
There are quite a few cases in which device drivers, bus types or
even the PM core itself may benefit from knowing whether or not
the platform firmware will be involved in the upcoming system power
transition (during system suspend) or whether or not it was involved
in it (during system resume).
For this reason, introduce global system suspend flags that can be
used by the platform code to expose that information for the benefit
of the other parts of the kernel and make the ACPI core set them
as appropriate.
Users of the new flags will be added later.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/sleep.c')
| -rw-r--r-- | drivers/acpi/sleep.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 2f0d4db40a9e..a0b4d781e606 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -487,6 +487,8 @@ static int acpi_suspend_begin(suspend_state_t pm_state) pr_err("ACPI does not support sleep state S%u\n", acpi_state); return -ENOSYS; } + if (acpi_state > ACPI_STATE_S1) + pm_set_suspend_via_firmware(); acpi_pm_start(acpi_state); return 0; @@ -522,6 +524,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) if (error) return error; pr_info(PREFIX "Low-level resume complete\n"); + pm_set_resume_via_firmware(); break; } trace_suspend_resume(TPS("acpi_suspend"), acpi_state, false); |