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现象

日志

简要日志

3,609: 12-30 13:13:25.983950  1216  1216 I [  633.918732] (1)[1216:system_server]: active wakeup source: PMIC AuxADC wakelock 12-30 14:45:36.754140  1216  1216 I [  643.931309] (0)[1216:system_server]: active wakeup source: PMIC AuxADC wakelock

详细日志

CPU 被待机唤醒了12-30 13:13:25.983855  1216  1216 I [  633.918637] (1)[1216:system_server]: PM: Wakeup pending, aborting suspend12-30 13:13:25.983950  1216  1216 I [  633.918732] (1)[1216:system_server]: active wakeup source: PMIC AuxADC wakelock12-30 13:13:25.984019  1216  1216 E [  633.918801] (1)[1216:system_server]: PM: Some devices failed to suspend, or early wake event detectedCPU 被待机唤醒了12-30 14:45:36.754044  1216  1216 I [  643.931213] (0)[1216:system_server]: PM: Wakeup pending, aborting suspend12-30 14:45:36.754140  1216  1216 I [  643.931309] (0)[1216:system_server]: active wakeup source: PMIC AuxADC wakelock12-30 14:45:36.754207  1216  1216 E [  643.931376] (0)[1216:system_server]: PM: Some devices failed to suspend, or early wake event detected

源码

kernel-4.4\drivers\misc\mediatek\pmic\mt6357\v1\pmic_auxadc.c

Z:\7.1\sp91_new\kernel-4.4\drivers\misc\mediatek\pmic\mt6357\v1\pmic_auxadc.cvoid mt6357_auxadc_init(void){
       HKLOG("%s\n", __func__);    wake_lock_init(&pmic_auxadc_wake_lock,            WAKE_LOCK_SUSPEND, "PMIC AuxADC wakelock");    mutex_init(&pmic_adc_mutex);    wake_lock_init(&mts_monitor_wake_lock,            WAKE_LOCK_SUSPEND, "PMIC MTS Monitor wakelock");    mutex_init(&mts_monitor_mutex);    /* Remove register setting which is set by PMIC initial setting in PL */

加log日志了,复现的时候再次确认

void pmic_auxadc_lock(void){    pr_notice("suhuazhi pmic_auxadc_lock");    wake_lock(&pmic_auxadc_wake_lock);    mutex_lock(&pmic_adc_mutex);}void pmic_auxadc_unlock(void){    pr_notice("suhuazhi pmic_auxadc_unlock");    mutex_unlock(&pmic_adc_mutex);    wake_unlock(&pmic_auxadc_wake_lock);}

PMIC AuxADC

PMIC: Power Management IC电源管理IC

作用

AUXADC 即通过读取电池电压来估测电池电量值。

唤醒周期

这才是我关注的，后续更新，想加log后测试