msm: camera: common: Merge camera-kernel.3.1 changes in camera-kernel.4.0

msm: camera: cdm: Fix dangling pointer issue
msm: camera: cdm: change work record to atomic variable
msm: camera: utils: Adding device type to track device handles
msm: camera: tfe: Reduce stack footprint during bw vote
msm: camera: req_mgr: Thread switch delay detection mechanisms
msm: camera: cdm: Avoid submitting BL if FIFO is full
msm: camera: tfe: check cdm hang in the tfe config timeout
msm: camera: req_mgr: Delay detection mechanism
msm: camera: cdm: Debug info in case of cdm page fault
msm: camera: isp: Max context reduction for TFE in isp driver
msm: camera: ope: Maintain current clock value during acquire
msm: camera: req_mgr: Limit CAM_ERR log in case of no empty task
msm: camera: cdm: Decrement write-count only after Bl commit
msm: camera: isp: Added CSID recovery mechanism.

CRs-Fixed: 2792394
Change-Id: I1c7a903ae15b572acf3f6318cda7394cb6549c8d
Signed-off-by: Tejas Prajapati <tpraja@codeaurora.org>

drivers/cam_sync/cam_sync_private.h

@@ -94,18 +94,20 @@ struct sync_child_info {
  * struct sync_callback_info - Single node of information about a kernel
  * callback registered on a sync object
  *
- * @callback_func    : Callback function, registered by client driver
- * @cb_data          : Callback data, registered by client driver
- * @status........   : Status with which callback will be invoked in client
- * @sync_obj         : Sync id of the object for which callback is registered
- * @cb_dispatch_work : Work representing the call dispatch
- * @list             : List member used to append this node to a linked list
+ * @callback_func      : Callback function, registered by client driver
+ * @cb_data            : Callback data, registered by client driver
+ * @status             : Status with which callback will be invoked in client
+ * @sync_obj           : Sync id of the object for which callback is registered
+ * @workq_scheduled_ts : workqueue scheduled timestamp
+ * @cb_dispatch_work   : Work representing the call dispatch
+ * @list               : List member used to append this node to a linked list
  */
 struct sync_callback_info {
 	sync_callback callback_func;
 	void *cb_data;
 	int status;
 	int32_t sync_obj;
+	ktime_t workq_scheduled_ts;
 	struct work_struct cb_dispatch_work;
 	struct list_head list;
 };