diff --git a/drivers/bus/mhi/host/debugfs.c b/drivers/bus/mhi/host/debugfs.c
index cfec7811dfbb..55dd7375c06f 100644
--- a/drivers/bus/mhi/host/debugfs.c
+++ b/drivers/bus/mhi/host/debugfs.c
@@ -25,8 +25,8 @@ static int mhi_debugfs_states_show(struct seq_file *m, void *d)
 		   mhi_cntrl->wake_set ? "true" : "false");
 
 	/* counters */
-	seq_printf(m, "M0: %u M2: %u M3: %u", mhi_cntrl->M0, mhi_cntrl->M2,
-		   mhi_cntrl->M3);
+	seq_printf(m, "M0: %u M2: %u M3: %u, M3_fast: %u", mhi_cntrl->M0,
+		   mhi_cntrl->M2, mhi_cntrl->M3, mhi_cntrl->M3_fast);
 
 	seq_printf(m, " device wake: %u pending packets: %u\n",
 		   atomic_read(&mhi_cntrl->dev_wake),
diff --git a/include/linux/mhi.h b/include/linux/mhi.h
index bac68bbd7f68..3ba339d087b8 100644
--- a/include/linux/mhi.h
+++ b/include/linux/mhi.h
@@ -354,7 +354,7 @@ struct mhi_controller_config {
  * @dev_state: MHI device state
  * @dev_wake: Device wakeup count
  * @pending_pkts: Pending packets for the controller
- * @M0, M2, M3: Counters to track number of device MHI state changes
+ * @M0, M2, M3, M3_fast: Counters to track number of device MHI state changes
  * @transition_list: List of MHI state transitions
  * @transition_lock: Lock for protecting MHI state transition list
  * @wlock: Lock for protecting device wakeup
@@ -444,7 +444,7 @@ struct mhi_controller {
 	enum mhi_state dev_state;
 	atomic_t dev_wake;
 	atomic_t pending_pkts;
-	u32 M0, M2, M3;
+	u32 M0, M2, M3, M3_fast;
 	struct list_head transition_list;
 	spinlock_t transition_lock;
 	spinlock_t wlock;