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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-12-16 02:05:48 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-12-16 02:05:48 +0100 |
| commit | c51a024e3913e9dbaf4dfcb9aaba825668a89ace (patch) | |
| tree | 9772af495ced0bde0d3c58b6e6fb5b395b3afae9 /include/linux/pm.h | |
| parent | 3487972d7fa6c5143951436ada5933dcf0ec659d (diff) | |
| parent | 34fb8f0ba9ceea88e116688f9f53e3802c38aafb (diff) | |
| download | linux-c51a024e3913e9dbaf4dfcb9aaba825668a89ace.tar.gz | |
Merge back PM core material for v4.16.
Diffstat (limited to 'include/linux/pm.h')
| -rw-r--r-- | include/linux/pm.h | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/include/linux/pm.h b/include/linux/pm.h index 492ed473ba7e..e723b78d8357 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -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 */ |