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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 18:32:35 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-02 18:32:35 -0700
commit16642a2e7be23bbda013fc32d8f6c68982eab603 (patch)
tree346ae485f485f6901e5d8150f0d34d178a7dd448 /include
parent51562cba98939da0a1d10fe7c25359b77a069033 (diff)
parentb9142167a2bb979b58b98ffcd928a311b55cbd9f (diff)
Merge tag 'pm-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael J Wysocki: - Improved system suspend/resume and runtime PM handling for the SH TMU, CMT and MTU2 clock event devices (also used by ARM/shmobile). - Generic PM domains framework extensions related to cpuidle support and domain objects lookup using names. - ARM/shmobile power management updates including improved support for the SH7372's A4S power domain containing the CPU core. - cpufreq changes related to AMD CPUs support from Matthew Garrett, Andre Przywara and Borislav Petkov. - cpu0 cpufreq driver from Shawn Guo. - cpufreq governor fixes related to the relaxing of limit from Michal Pecio. - OMAP cpufreq updates from Axel Lin and Richard Zhao. - cpuidle ladder governor fixes related to the disabling of states from Carsten Emde and me. - Runtime PM core updates related to the interactions with the system suspend core from Alan Stern and Kevin Hilman. - Wakeup sources modification allowing more helper functions to be called from interrupt context from John Stultz and additional diagnostic code from Todd Poynor. - System suspend error code path fix from Feng Hong. Fixed up conflicts in cpufreq/powernow-k8 that stemmed from the workqueue fixes conflicting fairly badly with the removal of support for hardware P-state chips. The changes were independent but somewhat intertwined. * tag 'pm-for-3.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits) Revert "PM QoS: Use spinlock in the per-device PM QoS constraints code" PM / Runtime: let rpm_resume() succeed if RPM_ACTIVE, even when disabled, v2 cpuidle: rename function name "__cpuidle_register_driver", v2 cpufreq: OMAP: Check IS_ERR() instead of NULL for omap_device_get_by_hwmod_name cpuidle: remove some empty lines PM: Prevent runtime suspend during system resume PM QoS: Use spinlock in the per-device PM QoS constraints code PM / Sleep: use resume event when call dpm_resume_early cpuidle / ACPI : move cpuidle_device field out of the acpi_processor_power structure ACPI / processor: remove pointless variable initialization ACPI / processor: remove unused function parameter cpufreq: OMAP: remove loops_per_jiffy recalculate for smp sections: fix section conflicts in drivers/cpufreq cpufreq: conservative: update frequency when limits are relaxed cpufreq / ondemand: update frequency when limits are relaxed properly __init-annotate pm_sysrq_init() cpufreq: Add a generic cpufreq-cpu0 driver PM / OPP: Initialize OPP table from device tree ARM: add cpufreq transiton notifier to adjust loops_per_jiffy for smp cpufreq: Remove support for hardware P-state chips from powernow-k8 ...
Diffstat (limited to 'include')
-rw-r--r--include/acpi/processor.h9
-rw-r--r--include/linux/clockchips.h8
-rw-r--r--include/linux/device.h7
-rw-r--r--include/linux/opp.h8
-rw-r--r--include/linux/pm.h2
-rw-r--r--include/linux/pm_domain.h92
6 files changed, 99 insertions, 27 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 64ec644808b..555d0337ad9 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -3,7 +3,6 @@
#include <linux/kernel.h>
#include <linux/cpu.h>
-#include <linux/cpuidle.h>
#include <linux/thermal.h>
#include <asm/acpi.h>
@@ -59,13 +58,11 @@ struct acpi_processor_cx {
u8 entry_method;
u8 index;
u32 latency;
- u32 power;
u8 bm_sts_skip;
char desc[ACPI_CX_DESC_LEN];
};
struct acpi_processor_power {
- struct cpuidle_device dev;
struct acpi_processor_cx *state;
unsigned long bm_check_timestamp;
u32 default_state;
@@ -325,12 +322,10 @@ extern void acpi_processor_reevaluate_tstate(struct acpi_processor *pr,
extern const struct file_operations acpi_processor_throttling_fops;
extern void acpi_processor_throttling_init(void);
/* in processor_idle.c */
-int acpi_processor_power_init(struct acpi_processor *pr,
- struct acpi_device *device);
+int acpi_processor_power_init(struct acpi_processor *pr);
+int acpi_processor_power_exit(struct acpi_processor *pr);
int acpi_processor_cst_has_changed(struct acpi_processor *pr);
int acpi_processor_hotplug(struct acpi_processor *pr);
-int acpi_processor_power_exit(struct acpi_processor *pr,
- struct acpi_device *device);
int acpi_processor_suspend(struct device *dev);
int acpi_processor_resume(struct device *dev);
extern struct cpuidle_driver acpi_idle_driver;
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index acba894374a..8a7096fcb01 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -97,6 +97,8 @@ struct clock_event_device {
void (*broadcast)(const struct cpumask *mask);
void (*set_mode)(enum clock_event_mode mode,
struct clock_event_device *);
+ void (*suspend)(struct clock_event_device *);
+ void (*resume)(struct clock_event_device *);
unsigned long min_delta_ticks;
unsigned long max_delta_ticks;
@@ -156,6 +158,9 @@ clockevents_calc_mult_shift(struct clock_event_device *ce, u32 freq, u32 minsec)
freq, minsec);
}
+extern void clockevents_suspend(void);
+extern void clockevents_resume(void);
+
#ifdef CONFIG_GENERIC_CLOCKEVENTS
extern void clockevents_notify(unsigned long reason, void *arg);
#else
@@ -164,6 +169,9 @@ extern void clockevents_notify(unsigned long reason, void *arg);
#else /* CONFIG_GENERIC_CLOCKEVENTS_BUILD */
+static inline void clockevents_suspend(void) {}
+static inline void clockevents_resume(void) {}
+
#define clockevents_notify(reason, arg) do { } while (0)
#endif
diff --git a/include/linux/device.h b/include/linux/device.h
index af92883bb4a..86ef6ab553b 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -776,6 +776,13 @@ static inline void pm_suspend_ignore_children(struct device *dev, bool enable)
dev->power.ignore_children = enable;
}
+static inline void dev_pm_syscore_device(struct device *dev, bool val)
+{
+#ifdef CONFIG_PM_SLEEP
+ dev->power.syscore = val;
+#endif
+}
+
static inline void device_lock(struct device *dev)
{
mutex_lock(&dev->mutex);
diff --git a/include/linux/opp.h b/include/linux/opp.h
index 2a4e5faee90..214e0ebcb84 100644
--- a/include/linux/opp.h
+++ b/include/linux/opp.h
@@ -48,6 +48,14 @@ int opp_disable(struct device *dev, unsigned long freq);
struct srcu_notifier_head *opp_get_notifier(struct device *dev);
+#ifdef CONFIG_OF
+int of_init_opp_table(struct device *dev);
+#else
+static inline int of_init_opp_table(struct device *dev)
+{
+ return -EINVAL;
+}
+#endif /* CONFIG_OF */
#else
static inline unsigned long opp_get_voltage(struct opp *opp)
{
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 88f034a23f2..007e687c4f6 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -510,12 +510,14 @@ struct dev_pm_info {
bool is_prepared:1; /* Owned by the PM core */
bool is_suspended:1; /* Ditto */
bool ignore_children:1;
+ bool early_init:1; /* Owned by the PM core */
spinlock_t lock;
#ifdef CONFIG_PM_SLEEP
struct list_head entry;
struct completion completion;
struct wakeup_source *wakeup;
bool wakeup_path:1;
+ bool syscore:1;
#else
unsigned int should_wakeup:1;
#endif
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index a7d6172922d..7c1d252b20c 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -114,7 +114,6 @@ struct generic_pm_domain_data {
struct mutex lock;
unsigned int refcount;
bool need_restore;
- bool always_on;
};
#ifdef CONFIG_PM_GENERIC_DOMAINS
@@ -139,36 +138,32 @@ extern int __pm_genpd_of_add_device(struct device_node *genpd_node,
struct device *dev,
struct gpd_timing_data *td);
-static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
- struct device *dev)
-{
- return __pm_genpd_add_device(genpd, dev, NULL);
-}
-
-static inline int pm_genpd_of_add_device(struct device_node *genpd_node,
- struct device *dev)
-{
- return __pm_genpd_of_add_device(genpd_node, dev, NULL);
-}
+extern int __pm_genpd_name_add_device(const char *domain_name,
+ struct device *dev,
+ struct gpd_timing_data *td);
extern int pm_genpd_remove_device(struct generic_pm_domain *genpd,
struct device *dev);
-extern void pm_genpd_dev_always_on(struct device *dev, bool val);
extern void pm_genpd_dev_need_restore(struct device *dev, bool val);
extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *new_subdomain);
+extern int pm_genpd_add_subdomain_names(const char *master_name,
+ const char *subdomain_name);
extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *target);
extern int pm_genpd_add_callbacks(struct device *dev,
struct gpd_dev_ops *ops,
struct gpd_timing_data *td);
extern int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td);
-extern int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state);
-extern int genpd_detach_cpuidle(struct generic_pm_domain *genpd);
+extern int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state);
+extern int pm_genpd_name_attach_cpuidle(const char *name, int state);
+extern int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd);
+extern int pm_genpd_name_detach_cpuidle(const char *name);
extern void pm_genpd_init(struct generic_pm_domain *genpd,
struct dev_power_governor *gov, bool is_off);
extern int pm_genpd_poweron(struct generic_pm_domain *genpd);
+extern int pm_genpd_name_poweron(const char *domain_name);
extern bool default_stop_ok(struct device *dev);
@@ -189,8 +184,15 @@ static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
-static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
- struct device *dev)
+static inline int __pm_genpd_of_add_device(struct device_node *genpd_node,
+ struct device *dev,
+ struct gpd_timing_data *td)
+{
+ return -ENOSYS;
+}
+static inline int __pm_genpd_name_add_device(const char *domain_name,
+ struct device *dev,
+ struct gpd_timing_data *td)
{
return -ENOSYS;
}
@@ -199,13 +201,17 @@ static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
-static inline void pm_genpd_dev_always_on(struct device *dev, bool val) {}
static inline void pm_genpd_dev_need_restore(struct device *dev, bool val) {}
static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *new_sd)
{
return -ENOSYS;
}
+static inline int pm_genpd_add_subdomain_names(const char *master_name,
+ const char *subdomain_name)
+{
+ return -ENOSYS;
+}
static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *target)
{
@@ -221,11 +227,19 @@ static inline int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td)
{
return -ENOSYS;
}
-static inline int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st)
+static inline int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st)
{
return -ENOSYS;
}
-static inline int genpd_detach_cpuidle(struct generic_pm_domain *genpd)
+static inline int pm_genpd_name_attach_cpuidle(const char *name, int state)
+{
+ return -ENOSYS;
+}
+static inline int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
+{
+ return -ENOSYS;
+}
+static inline int pm_genpd_name_detach_cpuidle(const char *name)
{
return -ENOSYS;
}
@@ -237,6 +251,10 @@ static inline int pm_genpd_poweron(struct generic_pm_domain *genpd)
{
return -ENOSYS;
}
+static inline int pm_genpd_name_poweron(const char *domain_name)
+{
+ return -ENOSYS;
+}
static inline bool default_stop_ok(struct device *dev)
{
return false;
@@ -245,6 +263,24 @@ static inline bool default_stop_ok(struct device *dev)
#define pm_domain_always_on_gov NULL
#endif
+static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
+ struct device *dev)
+{
+ return __pm_genpd_add_device(genpd, dev, NULL);
+}
+
+static inline int pm_genpd_of_add_device(struct device_node *genpd_node,
+ struct device *dev)
+{
+ return __pm_genpd_of_add_device(genpd_node, dev, NULL);
+}
+
+static inline int pm_genpd_name_add_device(const char *domain_name,
+ struct device *dev)
+{
+ return __pm_genpd_name_add_device(domain_name, dev, NULL);
+}
+
static inline int pm_genpd_remove_callbacks(struct device *dev)
{
return __pm_genpd_remove_callbacks(dev, true);
@@ -258,4 +294,20 @@ static inline void genpd_queue_power_off_work(struct generic_pm_domain *gpd) {}
static inline void pm_genpd_poweroff_unused(void) {}
#endif
+#ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
+extern void pm_genpd_syscore_switch(struct device *dev, bool suspend);
+#else
+static inline void pm_genpd_syscore_switch(struct device *dev, bool suspend) {}
+#endif
+
+static inline void pm_genpd_syscore_poweroff(struct device *dev)
+{
+ pm_genpd_syscore_switch(dev, true);
+}
+
+static inline void pm_genpd_syscore_poweron(struct device *dev)
+{
+ pm_genpd_syscore_switch(dev, false);
+}
+
#endif /* _LINUX_PM_DOMAIN_H */