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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-05-14 19:09:16 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-06-19 23:36:30 +0200 |
| commit | d6a77ead21b69c395ca6d09a066ededfac601bcc (patch) | |
| tree | 15e6fa0166b2359f4cc7de850f62cff4538a6aa3 /drivers/acpi | |
| parent | Linux 3.10-rc6 (diff) | |
| download | linux-d6a77ead21b69c395ca6d09a066ededfac601bcc.tar.xz linux-d6a77ead21b69c395ca6d09a066ededfac601bcc.zip | |
x86 / ACPI / sleep: Provide registration for acpi_suspend_lowlevel.
Which by default will be x86_acpi_suspend_lowlevel.
This registration allows us to register another callback
if there is a need to use another platform specific callback.
Signed-off-by: Liang Tang <liang.tang@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Tested-by: Ben Guthro <benjamin.guthro@citrix.com>
Acked-by: "H. Peter Anvin" <hpa@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/sleep.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 9c1a435d10e6..187ab61889e6 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -494,6 +494,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state) break; case ACPI_STATE_S3: + if (!acpi_suspend_lowlevel) + return -ENOSYS; error = acpi_suspend_lowlevel(); if (error) return error; |