diff options
| -rw-r--r-- | arch/arm/mach-shmobile/pm-sh7372.c | 2 | ||||
| -rw-r--r-- | drivers/base/power/domain.c | 15 | ||||
| -rw-r--r-- | drivers/base/power/domain_governor.c | 24 | ||||
| -rw-r--r-- | kernel/Makefile | 3 | ||||
| -rw-r--r-- | kernel/power/swap.c | 13 |
5 files changed, 43 insertions, 14 deletions
diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c index 77b8fc12fc2f..fcf8b1761aef 100644 --- a/arch/arm/mach-shmobile/pm-sh7372.c +++ b/arch/arm/mach-shmobile/pm-sh7372.c @@ -276,7 +276,7 @@ static int sh7372_a3sp_suspend(void) * Serial consoles make use of SCIF hardware located in A3SP, * keep such power domain on if "no_console_suspend" is set. */ - return console_suspend_enabled ? -EBUSY : 0; + return console_suspend_enabled ? 0 : -EBUSY; } struct sh7372_pm_domain sh7372_a3sp = { diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 92e6a9048065..978bbf7ac6af 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -1429,6 +1429,8 @@ static int pm_genpd_default_restore_state(struct device *dev) return 0; } +#ifdef CONFIG_PM_SLEEP + /** * pm_genpd_default_suspend - Default "device suspend" for PM domians. * @dev: Device to handle. @@ -1517,6 +1519,19 @@ static int pm_genpd_default_thaw(struct device *dev) return cb ? cb(dev) : pm_generic_thaw(dev); } +#else /* !CONFIG_PM_SLEEP */ + +#define pm_genpd_default_suspend NULL +#define pm_genpd_default_suspend_late NULL +#define pm_genpd_default_resume_early NULL +#define pm_genpd_default_resume NULL +#define pm_genpd_default_freeze NULL +#define pm_genpd_default_freeze_late NULL +#define pm_genpd_default_thaw_early NULL +#define pm_genpd_default_thaw NULL + +#endif /* !CONFIG_PM_SLEEP */ + /** * pm_genpd_init - Initialize a generic I/O PM domain object. * @genpd: PM domain object to initialize. diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c index 51527ee92d10..66a265bf5867 100644 --- a/drivers/base/power/domain_governor.c +++ b/drivers/base/power/domain_governor.c @@ -12,6 +12,8 @@ #include <linux/pm_qos.h> #include <linux/hrtimer.h> +#ifdef CONFIG_PM_RUNTIME + /** * default_stop_ok - Default PM domain governor routine for stopping devices. * @dev: Device to check. @@ -137,16 +139,28 @@ static bool default_power_down_ok(struct dev_pm_domain *pd) return true; } -struct dev_power_governor simple_qos_governor = { - .stop_ok = default_stop_ok, - .power_down_ok = default_power_down_ok, -}; - static bool always_on_power_down_ok(struct dev_pm_domain *domain) { return false; } +#else /* !CONFIG_PM_RUNTIME */ + +bool default_stop_ok(struct device *dev) +{ + return false; +} + +#define default_power_down_ok NULL +#define always_on_power_down_ok NULL + +#endif /* !CONFIG_PM_RUNTIME */ + +struct dev_power_governor simple_qos_governor = { + .stop_ok = default_stop_ok, + .power_down_ok = default_power_down_ok, +}; + /** * pm_genpd_gov_always_on - A governor implementing an always-on policy */ diff --git a/kernel/Makefile b/kernel/Makefile index f70396e5a24b..2d9de86b7e76 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -23,6 +23,7 @@ CFLAGS_REMOVE_irq_work.o = -pg endif obj-y += sched/ +obj-y += power/ obj-$(CONFIG_FREEZER) += freezer.o obj-$(CONFIG_PROFILING) += profile.o @@ -52,8 +53,6 @@ obj-$(CONFIG_PROVE_LOCKING) += spinlock.o obj-$(CONFIG_UID16) += uid16.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_KALLSYMS) += kallsyms.o -obj-$(CONFIG_PM) += power/ -obj-$(CONFIG_FREEZER) += power/ obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o obj-$(CONFIG_KEXEC) += kexec.o obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 3739ecced085..8742fd013a94 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -773,8 +773,7 @@ static int enough_swap(unsigned int nr_pages, unsigned int flags) pr_debug("PM: Free swap pages: %u\n", free_swap); - required = PAGES_FOR_IO + ((flags & SF_NOCOMPRESS_MODE) ? - nr_pages : (nr_pages * LZO_CMP_PAGES) / LZO_UNC_PAGES + 1); + required = PAGES_FOR_IO + nr_pages; return free_swap > required; } @@ -802,10 +801,12 @@ int swsusp_write(unsigned int flags) printk(KERN_ERR "PM: Cannot get swap writer\n"); return error; } - if (!enough_swap(pages, flags)) { - printk(KERN_ERR "PM: Not enough free swap\n"); - error = -ENOSPC; - goto out_finish; + if (flags & SF_NOCOMPRESS_MODE) { + if (!enough_swap(pages, flags)) { + printk(KERN_ERR "PM: Not enough free swap\n"); + error = -ENOSPC; + goto out_finish; + } } memset(&snapshot, 0, sizeof(struct snapshot_handle)); error = snapshot_read_next(&snapshot); |