diff options
Diffstat (limited to 'kernel/power/suspend.c')
| -rw-r--r-- | kernel/power/suspend.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index a212348c..b1af1cda 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -271,6 +271,13 @@ void __weak arch_suspend_enable_irqs(void) * * This function should be called after devices have been suspended. */ +/*lenovo.sw begin chenyb1, 20130516, Add for sysfs tlmm_before_sleep */ +#ifdef CONFIG_LENOVO_PM_LOG +extern void vreg_before_sleep_save_configs(void); +extern void tlmm_before_sleep_set_configs(void); +extern void tlmm_before_sleep_save_configs(void); +#endif//#ifdef CONFIG_LENOVO_PM_LOG +/*lenovo.sw end chenyb1, 20130516, Add for sysfs tlmm_before_sleep */ static int suspend_enter(suspend_state_t state, bool *wakeup) { char suspend_abort[MAX_SUSPEND_ABORT_LEN]; @@ -322,6 +329,16 @@ static int suspend_enter(suspend_state_t state, bool *wakeup) goto Platform_wake; } + /*lenovo.sw begin chenyb1, 20130516, Add for sysfs tlmm_before_sleep. */ +#ifdef CONFIG_LENOVO_PM_LOG + vreg_before_sleep_save_configs(); +#if 1 //TBD + tlmm_before_sleep_set_configs(); + tlmm_before_sleep_save_configs(); +#endif +#endif//#ifdef CONFIG_LENOVO_PM_LOG + /*lenovo.sw end chenyb1, 20130516, Add for sysfs tlmm_before_sleep. */ + error = disable_nonboot_cpus(); if (error || suspend_test(TEST_CPUS)) { log_suspend_abort_reason("Disabling non-boot cpus failed"); @@ -463,11 +480,19 @@ static int enter_state(suspend_state_t state) if (state == PM_SUSPEND_FREEZE) freeze_begin(); +/* chenyb1 add to disable sys_sync in suspend begin + * to advoid super delay which block suspend and android WDT + * no need to do the sync in build-in battery phone, the mem won't be shutdown + * low speed emmc or external storage would trigger super delay + */ +#ifdef CONFIG_PM_SYNC_BEFORE_SUSPEND trace_suspend_resume(TPS("sync_filesystems"), 0, true); printk(KERN_INFO "PM: Syncing filesystems ... "); sys_sync(); printk("done.\n"); trace_suspend_resume(TPS("sync_filesystems"), 0, false); +#endif +/* chenyb1 add to disable sys_sync in suspend end */ pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]); error = suspend_prepare(state); @@ -510,6 +535,12 @@ static void pm_suspend_marker(char *annotation) * Check if the value of @state represents one of the supported states, * execute enter_state() and update system suspend statistics. */ +/* chenyb1, 20130524, Add sleeplog, START */ +#ifdef CONFIG_LENOVO_PM_LOG +extern void log_suspend_enter(void); +extern void log_suspend_exit(int error); +#endif //#ifdef CONFIG_LENOVO_PM_LOG +/* chenyb1, 20130524, Add sleeplog, END */ int pm_suspend(suspend_state_t state) { int error; @@ -518,6 +549,11 @@ int pm_suspend(suspend_state_t state) return -EINVAL; pm_suspend_marker("entry"); + /* chenyb1, 20130524, Add sleeplog START*/ +#ifdef CONFIG_LENOVO_PM_LOG + log_suspend_enter(); +#endif + /* chenyb1, 20130524, Add sleeplog END*/ error = enter_state(state); if (error) { suspend_stats.fail++; @@ -525,6 +561,11 @@ int pm_suspend(suspend_state_t state) } else { suspend_stats.success++; } + /* chenyb1, 20130524, Add sleeplog START*/ +#ifdef CONFIG_LENOVO_PM_LOG + log_suspend_exit(error); +#endif //#ifdef CONFIG_LENOVO_PM_LOG + /* chenyb1, 20130524, Add sleeplog END*/ pm_suspend_marker("exit"); return error; } |