diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2012-11-02 01:40:45 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2012-11-15 00:15:18 +0100 |
| commit | 078eb12648c2f8bba48921f60ec2cec3e1bbc051 (patch) | |
| tree | 18a669b4363a520e89213f9ae4d326611cab5cca /include/acpi | |
| parent | dee8370cc87e505ef39567f0974e73d59e75d76b (diff) | |
ACPI / PM: Provide device PM functions operating on struct acpi_device
If the caller of acpi_bus_set_power() already has a pointer to the
struct acpi_device object corresponding to the device in question, it
doesn't make sense for it to go through acpi_bus_get_device(), which
may be costly, because it involves acquiring the global ACPI
namespace mutex.
For this reason, export the function operating on struct acpi_device
objects used internally by acpi_bus_set_power(), so that it may be
called instead of acpi_bus_set_power() in the above case, and change
its name to acpi_device_set_power().
Additionally, introduce two inline wrappers for checking ACPI PM
capabilities of devices represented by struct acpi_device objects.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/acpi_bus.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index a635942bcd51..35812b6e0427 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -339,6 +339,7 @@ acpi_status acpi_bus_get_status_handle(acpi_handle handle, unsigned long long *sta); int acpi_bus_get_status(struct acpi_device *device); int acpi_bus_set_power(acpi_handle handle, int state); +int acpi_device_set_power(struct acpi_device *device, int state); int acpi_bus_update_power(acpi_handle handle, int *state_p); bool acpi_bus_power_manageable(acpi_handle handle); bool acpi_bus_can_wakeup(acpi_handle handle); @@ -483,6 +484,16 @@ static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) } #endif +static inline bool acpi_device_power_manageable(struct acpi_device *adev) +{ + return adev->flags.power_manageable; +} + +static inline bool acpi_device_can_wakeup(struct acpi_device *adev) +{ + return adev->wakeup.flags.valid; +} + #else /* CONFIG_ACPI */ static inline int register_acpi_bus_type(void *bus) { return 0; } |