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-rw-r--r--include/linux/platform_data/cros_ec_proto.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/platform_data/cros_ec_proto.h b/include/linux/platform_data/cros_ec_proto.h
index 691f9e953a96..02dc34f366d7 100644
--- a/include/linux/platform_data/cros_ec_proto.h
+++ b/include/linux/platform_data/cros_ec_proto.h
@@ -122,6 +122,8 @@ struct cros_ec_command {
* @event_data: Raw payload transferred with the MKBP event.
* @event_size: Size in bytes of the event data.
* @host_event_wake_mask: Mask of host events that cause wake from suspend.
+ * @last_event_time: exact time from the hard irq when we got notified of
+ * a new event.
* @ec: The platform_device used by the mfd driver to interface with the
* main EC.
* @pd: The platform_device used by the mfd driver to interface with the
@@ -162,6 +164,7 @@ struct cros_ec_device {
int event_size;
u32 host_event_wake_mask;
u32 last_resume_result;
+ ktime_t last_event_time;
/* The platform devices used by the mfd driver */
struct platform_device *ec;
@@ -210,4 +213,17 @@ int cros_ec_check_features(struct cros_ec_dev *ec, int feature);
int cros_ec_get_sensor_count(struct cros_ec_dev *ec);
+/**
+ * cros_ec_get_time_ns() - Return time in ns.
+ *
+ * This is the function used to record the time for last_event_time in struct
+ * cros_ec_device during the hard irq.
+ *
+ * Return: ktime_t format since boot.
+ */
+static inline ktime_t cros_ec_get_time_ns(void)
+{
+ return ktime_get_boottime_ns();
+}
+
#endif /* __LINUX_CROS_EC_PROTO_H */