msm: camera: common: Append timestamp in INFO LOGS

Use Kernel time to obtain the current time when IFE is acquired
/released and when sensor is streamed on/off. Convert the Ktime
to a timestamp format and log it in existing info prints. This
will help to co-relate timestamp between user-space and kernel
logs. The change also replaces the current usage of direct calls
to ktime_get_real_ts64 with macro across all drivers.

CRs-Fixed: 2987320
Change-Id: I87c4790164d222fc1ed6ff41ad00eeb1ed8c8867
Signed-off-by: Sokchetra Eung <eung@codeaurora.org>

drivers/cam_utils/cam_common_util.h

@@ -17,21 +17,30 @@
 #define U64_TO_PTR(ptr) ((void *)(uintptr_t)ptr)
 
 #define CAM_GET_TIMESTAMP(timestamp) ktime_get_real_ts64(&(timestamp))
-#define CAM_GET_TIMESTAMP_DIFF_IN_MICRO(ts_start, ts_end, diff_microsec)       \
-({                                                                             \
-	diff_microsec = 0;                                                     \
-	if (ts_end.tv_nsec >= ts_start.tv_nsec) {                              \
-		diff_microsec =                                                \
-			(ts_end.tv_nsec - ts_start.tv_nsec) / 1000;            \
-		diff_microsec +=                                               \
-			(ts_end.tv_sec - ts_start.tv_sec) * 1000 * 1000;       \
-	} else {                                                               \
-		diff_microsec =                                                \
-			(ts_end.tv_nsec +                                      \
-			(1000*1000*1000 - ts_start.tv_nsec)) / 1000;           \
-		diff_microsec +=                                               \
-			(ts_end.tv_sec - ts_start.tv_sec - 1) * 1000 * 1000;   \
-	}                                                                      \
+#define CAM_GET_TIMESTAMP_DIFF_IN_MICRO(ts_start, ts_end, diff_microsec)         \
+({                                                                               \
+	diff_microsec = 0;                                                       \
+	if (ts_end.tv_nsec >= ts_start.tv_nsec) {                                \
+		diff_microsec =                                                  \
+			(ts_end.tv_nsec - ts_start.tv_nsec) / 1000;              \
+		diff_microsec +=                                                 \
+			(ts_end.tv_sec - ts_start.tv_sec) * 1000 * 1000;         \
+	} else {                                                                 \
+		diff_microsec =                                                  \
+			(ts_end.tv_nsec +                                        \
+			(1000*1000*1000 - ts_start.tv_nsec)) / 1000;             \
+		diff_microsec +=                                                 \
+			(ts_end.tv_sec - ts_start.tv_sec - 1) * 1000 * 1000;     \
+	}                                                                        \
+})
+
+#define CAM_CONVERT_TIMESTAMP_FORMAT(ts, hrs, min, sec, ms)                      \
+({                                                                               \
+	uint64_t tmp = ((ts).tv_sec);                                            \
+	(ms) = ((ts).tv_nsec) / 1000000;                                         \
+	(sec) = do_div(tmp, 60);                                                 \
+	(min) = do_div(tmp, 60);                                                 \
+	(hrs) = do_div(tmp, 24);                                                 \
 })