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| author | Lin Ming <ming.m.lin@intel.com> | 2012-03-27 15:43:25 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2012-03-30 02:21:18 -0400 |
| commit | b24e5098853653554baf6ec975b9e855f3d6e5c0 (patch) | |
| tree | be93ad39b826c64907bb48dceea034db5b91fc24 /drivers/acpi | |
| parent | 0090def6c37c8ea29508a435e581f2ef26fea10f (diff) | |
| download | linux-stable-b24e5098853653554baf6ec975b9e855f3d6e5c0.tar.gz linux-stable-b24e5098853653554baf6ec975b9e855f3d6e5c0.tar.bz2 linux-stable-b24e5098853653554baf6ec975b9e855f3d6e5c0.zip | |
ACPI, PCI: Move acpi_dev_run_wake() to ACPI core
acpi_dev_run_wake() is a generic function which can be used by
other subsystem too. Rename it to acpi_pm_device_run_wake, to be
consistent with acpi_pm_device_sleep_wake.
Then move it to ACPI core.
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/sleep.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index ca191ff97844..00fa664d5fd8 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -17,6 +17,7 @@ #include <linux/suspend.h> #include <linux/reboot.h> #include <linux/acpi.h> +#include <linux/pm_runtime.h> #include <asm/io.h> @@ -730,6 +731,40 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) #ifdef CONFIG_PM_SLEEP /** + * acpi_pm_device_run_wake - Enable/disable wake-up for given device. + * @phys_dev: Device to enable/disable the platform to wake-up the system for. + * @enable: Whether enable or disable the wake-up functionality. + * + * Find the ACPI device object corresponding to @pci_dev and try to + * enable/disable the GPE associated with it. + */ +int acpi_pm_device_run_wake(struct device *phys_dev, bool enable) +{ + struct acpi_device *dev; + acpi_handle handle; + + if (!device_run_wake(phys_dev)) + return -EINVAL; + + handle = DEVICE_ACPI_HANDLE(phys_dev); + if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &dev))) { + dev_dbg(phys_dev, "ACPI handle has no context in %s!\n", + __func__); + return -ENODEV; + } + + if (enable) { + acpi_enable_wakeup_device_power(dev, ACPI_STATE_S0); + acpi_enable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number); + } else { + acpi_disable_gpe(dev->wakeup.gpe_device, dev->wakeup.gpe_number); + acpi_disable_wakeup_device_power(dev); + } + + return 0; +} + +/** * acpi_pm_device_sleep_wake - enable or disable the system wake-up * capability of given device * @dev: device to handle |