Merge "input: add new input event code to pass timestamp to userspace"

Documentation/input/event-codes.txt

@@ -91,6 +91,11 @@ sent in the evdev event stream.
     event and query the device (using EVIOCG* ioctls) to obtain its
     current state.
 
+* SYN_TIME_SEC, SYN_TIME_NSEC:
+  - Used to report the timestamp from the hardware. The timestamp should record
+    the exact time when the hardware events happens. The timestamp is
+    CLOCK_MONOTONIC based.
+
 EV_KEY:
 ----------
 EV_KEY events take the form KEY_<name> or BTN_<name>. For example, KEY_A is used

drivers/input/input.c

@@ -266,6 +266,8 @@ static int input_get_disposition(struct input_dev *dev,
 	case EV_SYN:
 		switch (code) {
 		case SYN_CONFIG:
+		case SYN_TIME_SEC:
+		case SYN_TIME_NSEC:
 			disposition = INPUT_PASS_TO_ALL;
 			break;
 

include/uapi/linux/input.h

@@ -198,6 +198,8 @@ struct input_keymap_entry {
 #define SYN_CONFIG		1
 #define SYN_MT_REPORT		2
 #define SYN_DROPPED		3
+#define SYN_TIME_SEC		4
+#define SYN_TIME_NSEC		5
 
 /*
  * Keys and buttons