diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-02-03 14:57:32 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-02-03 14:57:32 +0100 |
| commit | 511d5c4212948fe55035b8fed61ac0e125af5a05 (patch) | |
| tree | 3b8b6a2d929aa8515f4de4e736f10626e747cdf0 /drivers/ata | |
| parent | b3785492268f9f3cdaa9722facb84b266dcf8bf6 (diff) | |
ACPI / PM: Handle missing _PSC in acpi_bus_update_power()
If _PS0 is defined for an ACPI device node, but _PSC isn't and
the device node doesn't use power resources for power management,
acpi_bus_update_power() will fail to update the power state of it,
because acpi_device_get_power() returns ACPI_STATE_UNKNOWN in that
case.
To handle that situation make acpi_bus_update_power() follow
acpi_bus_init_power() and try to force the given device node into
power state D0.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/ata')
0 files changed, 0 insertions, 0 deletions