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cam: add wakelock for the actuator noise reduction.

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-Sometimes system will suspend during the delaywork.
so add wakelock to ensure system is awake.
-port from 1984717

Change-Id: Ie081d6d3e6642c7d6f77b2a1f3eb9a3d82c9f69c
Signed-off-by: wangshuo18 <wangshuo18@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1985991
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Zhenxin Xi <xizx@motorola.com>
Reviewed-by: Long Cheng <chengl1@motorola.com>
Reviewed-by: Zhuoran Xu <xuzr3@motorola.com>
Reviewed-by: Bolei Shang <shangbl1@lenovo.com>
Reviewed-by: Shuo Wang <wangsh18@motorola.com>
Reviewed-by: Yongqin Wan <wanyq1@motorola.com>
Reviewed-by: Zhilong Wang <wangzl30@motorola.com>
Reviewed-by: Quanlin Zhu <zhuql3@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
wangshuo18 2021-06-21 16:06:12 +08:00 • committed by zhaoji1
commit 216643ab56
1 changed files with 10 additions and 0 deletions
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10
drivers/cam_sensor_module/cam_actuator/mot_actuator.c
View file

@ -27,6 +27,8 @@
#include "mot_actuator_policy.h"
#include "cam_sensor_io.h"
#include "cam_req_mgr_dev.h"
#include "linux/pm_wakeup.h"
/*=================ACTUATOR HW INFO====================*/
#define DEVICE_NAME_LEN 32
#define MAX_ACTUATOR_NUM 3
@ -314,6 +316,7 @@ struct mot_actuator_ctrl_t {
struct workqueue_struct *mot_actuator_wq;
struct delayed_work delay_work;
struct mutex actuator_lock;
struct wakeup_source actuator_wakelock;
};
enum mot_actuator_state_e {
@ -686,6 +689,7 @@ int mot_actuator_on_vibrate_start(void)
bool is_exiting = false;
ktime_t start,end,duration;
start = ktime_get();
__pm_stay_awake(&mot_actuator_fctrl.actuator_wakelock);
cancel_delayed_work(&mot_actuator_fctrl.delay_work);
if (mutex_is_locked(&mot_actuator_fctrl.actuator_lock)) {
is_exiting = true;
@ -907,6 +911,7 @@ static void mot_actuator_delayed_process(struct work_struct *work)
}
mot_actuator_state = MOT_ACTUATOR_RELEASED;
mutex_unlock(&actuator_fctrl->actuator_lock);
__pm_relax(&actuator_fctrl->actuator_wakelock);
}
static inline ssize_t msm_actuator_show(struct device *dev,
@ -1097,6 +1102,9 @@ static int mot_actuator_init_subdev(struct mot_actuator_ctrl_t *f_ctrl)
INIT_DELAYED_WORK(&f_ctrl->delay_work, mot_actuator_delayed_process);
mutex_init(&f_ctrl->actuator_lock);
memset(&f_ctrl->actuator_wakelock, 0, sizeof(f_ctrl->actuator_wakelock));
f_ctrl->actuator_wakelock.name = "actuator_hold_wl";
wakeup_source_add(&f_ctrl->actuator_wakelock);
{//Debug/tuning interfaces
int i;
@ -1133,6 +1141,8 @@ void mot_actuator_driver_exit(void)
mot_actuator_fctrl.mot_actuator_wq = NULL;
}
cam_unregister_subdev(&mot_actuator_fctrl.v4l2_dev_str);
__pm_relax(&mot_actuator_fctrl.actuator_wakelock);
wakeup_source_remove(&mot_actuator_fctrl.actuator_wakelock);
}
MODULE_DESCRIPTION("MOT ACTUATOR");