/** * enter_state - Do common work needed to enter system sleep state. * @state: System sleep state to enter. * * Make sure that no one else is trying to put the system into a sleep state. * Fail if that's not the case. Otherwise, prepare for system suspend, make the * system enter the given sleep state and clean up after wakeup. */ static int enter_state(suspend_state_t state) { int error; if (!valid_state(state)) return -ENODEV; if (!mutex_trylock(&pm_mutex)) return -EBUSY; suspend_sys_sync_queue(); pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]); error = suspend_prepare(); if (error) goto Unlock; if (suspend_test(TEST_FREEZER)) goto Finish; pr_debug("PM: Entering %s sleep\n", pm_states[state]); pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); pm_restore_gfp_mask(); Finish: pr_debug("PM: Finishing wakeup.\n"); suspend_finish(); Unlock: mutex_unlock(&pm_mutex); return error; }
/** * enter_state - Do common work needed to enter system sleep state. * @state: System sleep state to enter. * * Make sure that no one else is trying to put the system into a sleep state. * Fail if that's not the case. Otherwise, prepare for system suspend, make the * system enter the given sleep state and clean up after wakeup. */ static int enter_state(suspend_state_t state) { int error; if (state == PM_SUSPEND_FREEZE) { #ifdef CONFIG_PM_DEBUG if (pm_test_level != TEST_NONE && pm_test_level <= TEST_CPUS) { pr_warning("PM: Unsupported test mode for freeze state," "please choose none/freezer/devices/platform.\n"); return -EAGAIN; } #endif } else if (!valid_state(state)) { return -EINVAL; } if (!mutex_trylock(&pm_mutex)) return -EBUSY; if (state == PM_SUSPEND_FREEZE) freeze_begin(); #ifdef CONFIG_HAS_EARLYSUSPEND if (suspendsync) suspend_sys_sync_queue(); #else if (suspendsync) { printk(KERN_INFO "PM: Syncing filesystems ... "); sys_sync(); printk("done.\n"); } #endif pr_debug("PM: Preparing system for %s sleep\n", pm_states[state].label); error = suspend_prepare(state); if (error) goto Unlock; if (suspend_test(TEST_FREEZER)) goto Finish; pr_debug("PM: Entering %s sleep\n", pm_states[state].label); pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); pm_restore_gfp_mask(); Finish: pr_debug("PM: Finishing wakeup.\n"); suspend_finish(); Unlock: mutex_unlock(&pm_mutex); return error; }
/** * enter_state - Do common work of entering low-power state. * @state: pm_state structure for state we're entering. * * Make sure we're the only ones trying to enter a sleep state. Fail * if someone has beat us to it, since we don't want anything weird to * happen when we wake up. * Then, do the setup for suspend, enter the state, and cleaup (after * we've woken up). */ int enter_state(suspend_state_t state) { int error; if (!valid_state(state)) return -ENODEV; if (!mutex_trylock(&pm_mutex)) return -EBUSY; printk(KERN_INFO "PM: Syncing filesystems ... "); suspend_sys_sync_queue(); printk("done.\n"); pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]); error = suspend_prepare(); if (error) goto Unlock; if (suspend_test(TEST_FREEZER)) goto Finish; pr_debug("PM: Entering %s sleep\n", pm_states[state]); pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); pm_restore_gfp_mask(); Finish: pr_debug("PM: Finishing wakeup.\n"); #ifdef CONFIG_MACH_LGE start_monitor_blocking(suspend_monitor_id, jiffies + usecs_to_jiffies(3000000)); #endif suspend_finish(); #ifdef CONFIG_MACH_LGE end_monitor_blocking(suspend_monitor_id); #endif Unlock: mutex_unlock(&pm_mutex); return error; }
/** * enter_state - Do common work of entering low-power state. * @state: pm_state structure for state we're entering. * * Make sure we're the only ones trying to enter a sleep state. Fail * if someone has beat us to it, since we don't want anything weird to * happen when we wake up. * Then, do the setup for suspend, enter the state, and cleaup (after * we've woken up). */ int enter_state(suspend_state_t state) { int error; if (!valid_state(state)) return -ENODEV; if (!mutex_trylock(&pm_mutex)) return -EBUSY; #ifdef CONFIG_MSM_SM_EVENT sm_set_system_state (SM_STATE_SUSPEND); sm_add_event(SM_POWER_EVENT | SM_POWER_EVENT_SUSPEND, SM_EVENT_START, 0, NULL, 0); #endif suspend_sys_sync_queue(); pr_info("PM: Preparing system for %s sleep\n", pm_states[state]); error = suspend_prepare(); if (error) goto Unlock; if (suspend_test(TEST_FREEZER)) goto Finish; pr_info("PM: Entering %s sleep\n", pm_states[state]); pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); pm_restore_gfp_mask(); Finish: pr_info("PM: Finishing wakeup.\n"); suspend_finish(); Unlock: mutex_unlock(&pm_mutex); #ifdef CONFIG_MSM_SM_EVENT sm_add_event(SM_POWER_EVENT | SM_POWER_EVENT_RESUME, SM_EVENT_END, 0, NULL, 0); #endif return error; }
int enter_state(suspend_state_t state) { int error; if (!valid_state(state)) return -ENODEV; if (!mutex_trylock(&pm_mutex)) return -EBUSY; #if 0//ndef PA_THERM #if !defined(CONFIG_MACH_APQ8064_J1D) && !defined(CONFIG_MACH_APQ8064_J1KD) pm8xxx_adc_unconfigure(); #endif #endif suspend_sys_sync_queue(); pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]); error = suspend_prepare(); if (error) goto Unlock; if (suspend_test(TEST_FREEZER)) goto Finish; pr_debug("PM: Entering %s sleep\n", pm_states[state]); pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); pm_restore_gfp_mask(); Finish: pr_debug("PM: Finishing wakeup.\n"); suspend_finish(); Unlock: mutex_unlock(&pm_mutex); return error; }
/** * enter_state - Do common work needed to enter system sleep state. * @state: System sleep state to enter. * * Make sure that no one else is trying to put the system into a sleep state. * Fail if that's not the case. Otherwise, prepare for system suspend, make the * system enter the given sleep state and clean up after wakeup. */ static int enter_state(suspend_state_t state) { int error; if (!valid_state(state)) return -ENODEV; if (!mutex_trylock(&pm_mutex)) return -EBUSY; #ifdef CONFIG_HUAWEI_KERNEL printk(KERN_INFO "PM: Syncing filesystems put the sync in the queue... "); suspend_sys_sync_queue(); printk("put it done.\n"); #else printk(KERN_INFO "PM: Syncing filesystems ... "); sys_sync(); printk("done.\n"); #endif pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]); error = suspend_prepare(); if (error) goto Unlock; if (suspend_test(TEST_FREEZER)) goto Finish; pr_debug("PM: Entering %s sleep\n", pm_states[state]); pm_restrict_gfp_mask(); error = suspend_devices_and_enter(state); pm_restore_gfp_mask(); Finish: pr_debug("PM: Finishing wakeup.\n"); suspend_finish(); Unlock: mutex_unlock(&pm_mutex); return error; }