Audio Playback cannot sleep deep into audiooutlock

In the android process, when audiohardware: audiostreamoutalsa: Write, the lock will be acquire_wake_lock (partial_wake_lock, "audiooutlock"). If the lock is not released, in the pre-Sleep detection phase, you cannot enter deep sleep. If you do not use this lock, you can go to deep sleep during playback and resume playing after waking up.

# Cat proc/wakelocks // pause playback, deep sleep name count expire_count wake_count active_since total_time sleep_time max_time last_change "power-supply" 605 0 0 0 151670894 0 10133543 2417770315032 "keyevents" 506 0 0 54258153 0 28258959 2401090715490 "event0-90" 1 0 0 0 223208 0 223208 2401090314073 "usb_pcd" 1 0 0 2383999974653 0 2383999974653 2401080031865 "usb_mass_storage" 0 0 0 0 0 0 0 0 0 "powermanagerservice" 50 0 0 0 7929628021 0 3698752126 2371362561191 "alarm" 43 0 0 0 429276278 0 18711000 2371353584775 "audiooutlock" 1 0 0 0 163863869111 0 163863869111 721185809963 "event1-90" 504 0 0 18517589 154084 718186723127 "i2c0" 62 0 0 0 0 105757791 0 22611958 557359764975 "radio-Interface" 1 0 0 0 1000224126 0 1000224126 15442378166 "apmcommandthread" 10 0 0 0 2537126 0 1651292 13275112709 "event2-90" 0 0 0 0 0 0 0 0 0" mmc_delayed_work "1 0 0 54929460 0 54929460 1868635686" power-supply "1 0 0 0 10109959 0 10109959 1781967683" rtc_hym8563 "0 0 0 0 0 0 0 0 0" alarm_rtc "0 0 0 0 0 0 0 0 0 0 0 0 "power-supply" 1 0 0 237500 0 237500 1706312808 "vmac" 0 0 0 0 0 0 0 0 0 "bb_wakeup_ap" 0 0 0 0 0 0 0 0 0 0 0 "FB" 0 0 0 0 0 0 0 0 "unknown_wakeups" 0 0 0 0 0 0 0 0 "deleted_wake_locks" 0 0 0 0 0 0 0 "Main" 1 0 0 2418315539317 2418315539317 0 2418315539317 60000005 "usb_detect" 1 0 0 9999057875 0 9999057875 2400990950239 # Cat proc/wakelocks // playing, enter deep sleep name count expire_count wake_count active_since total_time sleep_time max_time last_change "powermanagerservice" 54 0 0 0 7948937313 0 3698752126 2551358474842 "alarm" 47 0 0 0 465811110 18711000 2551355229801 "i2c0" 69 0 0 0 0 0 0 109810291 0 22611958 2549824073675 "keyevents" 589 0 0 0 58064399 0 28258959 2549775434093 "event1-90" 587 0 0 0 21659841 0 154084 2549775399593 "power-supply" 638 0 0 0 159990726 0 10133543 2549770377635 "event0-90" 1 0 0 0 223208 0 223208 2401090314073 "usb_pcd" 1 0 0 2383999974653 0 2383999974653 2401080031865 "usb_mass_storage" 0 0 0 0 0 0 0 0 "radio-Interface" 1 0 0 0 1000224126 0 1000224126 15442378166 "apmcommandthread" 10 0 0 0 2537126 0 1651292 13275112709 "event2-90" 0 0 0 0 0 0 0 0 "mmc_delayed_work" 1 0 0 0 54929460 0 54929460" power-supply "1 0 0 0 10109959 0 10109959 1781967683" rtc_hym8563 "0 0 0 0 0 0 0" alarm_rtc "0 0 0 0 0 0 0" power-supply "1 0 0 0 237500 0 237500 1706312808 "vmac" 0 0 0 0 0 0 0 0 "bb_wakeup_ap" 0 0 0 0 0 0 0 "FB" 0 0 0 0 0 0 0 0 0 0 "unknown_wakeups" 0 0 0 0 0 0 0 0 "deleted_wake_locks" 0 0 0 0 0 0 0 0 0 "audiooutlock" 2 0 2475893045 166339762156 0 163863869111 "Main" 1 0 0 2549779566676 2552195473466 2552195473466 0 2552195473466 60000005 "usb_detect" 1 0 0 9999063982 0 9999063982 2400990950239