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Merge back PM core material for v4.16.

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This commit is contained in:
Rafael J. Wysocki 2017-12-16 02:05:48 +01:00
commit c51a024e39
7 changed files with 253 additions and 133 deletions
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16
include/linux/pm.h
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@ -556,9 +556,10 @@ struct pm_subsys_data {
* These flags can be set by device drivers at the probe time. They need not be
* cleared by the drivers as the driver core will take care of that.
*
* NEVER_SKIP: Do not skip system suspend/resume callbacks for the device.
* NEVER_SKIP: Do not skip all system suspend/resume callbacks for the device.
* SMART_PREPARE: Check the return value of the driver's ->prepare callback.
* SMART_SUSPEND: No need to resume the device from runtime suspend.
* LEAVE_SUSPENDED: Avoid resuming the device during system resume if possible.
*
* Setting SMART_PREPARE instructs bus types and PM domains which may want
* system suspend/resume callbacks to be skipped for the device to return 0 from
@ -572,10 +573,14 @@ struct pm_subsys_data {
* necessary from the driver's perspective. It also may cause them to skip
* invocations of the ->suspend_late and ->suspend_noirq callbacks provided by
* the driver if they decide to leave the device in runtime suspend.
*
* Setting LEAVE_SUSPENDED informs the PM core and middle-layer code that the
* driver prefers the device to be left in suspend after system resume.
*/
#define DPM_FLAG_NEVER_SKIP BIT(0)
#define DPM_FLAG_SMART_PREPARE BIT(1)
#define DPM_FLAG_SMART_SUSPEND BIT(2)
#define DPM_FLAG_NEVER_SKIP BIT(0)
#define DPM_FLAG_SMART_PREPARE BIT(1)
#define DPM_FLAG_SMART_SUSPEND BIT(2)
#define DPM_FLAG_LEAVE_SUSPENDED BIT(3)
struct dev_pm_info {
pm_message_t power_state;
@ -597,6 +602,8 @@ struct dev_pm_info {
bool wakeup_path:1;
bool syscore:1;
bool no_pm_callbacks:1; /* Owned by the PM core */
unsigned int must_resume:1; /* Owned by the PM core */
unsigned int may_skip_resume:1; /* Set by subsystems */
#else
unsigned int should_wakeup:1;
#endif
@ -766,6 +773,7 @@ extern int pm_generic_poweroff(struct device *dev);
extern void pm_generic_complete(struct device *dev);
extern void dev_pm_skip_next_resume_phases(struct device *dev);
extern bool dev_pm_may_skip_resume(struct device *dev);
extern bool dev_pm_smart_suspend_and_suspended(struct device *dev);
#else /* !CONFIG_PM_SLEEP */