diff --git a/drivers/bus/mhi/host/misc.c b/drivers/bus/mhi/host/misc.c
index 1f8ca24854b6..82153ae6b89e 100644
--- a/drivers/bus/mhi/host/misc.c
+++ b/drivers/bus/mhi/host/misc.c
@@ -1364,7 +1364,7 @@ int mhi_process_misc_bw_ev_ring(struct mhi_controller *mhi_cntrl,
 	struct mhi_link_info link_info, *cur_info = &mhi_cntrl->mhi_link_info;
 	struct device *dev = &mhi_cntrl->mhi_dev->dev;
 	struct mhi_private *mhi_priv = dev_get_drvdata(dev);
-	u32 result = MHI_BW_SCALE_NACK;
+	enum mhi_bw_scale_req_status result = MHI_BW_SCALE_NACK;
 	int ret = -EINVAL;
 
 	if (!MHI_IN_MISSION_MODE(mhi_cntrl->ee))
@@ -1428,7 +1428,9 @@ int mhi_process_misc_bw_ev_ring(struct mhi_controller *mhi_cntrl,
 	ret = mhi_priv->bw_scale(mhi_cntrl, &link_info);
 	if (!ret) {
 		*cur_info = link_info;
-		result = 0;
+		result = MHI_BW_SCALE_SUCCESS;
+	} else if (ret == -EINVAL) {
+		result = MHI_BW_SCALE_INVALID;
 	}
 
 	write_lock_bh(&mhi_cntrl->pm_lock);
diff --git a/drivers/bus/mhi/host/misc.h b/drivers/bus/mhi/host/misc.h
index 59bda8be22bd..acc1e108419b 100644
--- a/drivers/bus/mhi/host/misc.h
+++ b/drivers/bus/mhi/host/misc.h
@@ -44,7 +44,12 @@
 
 #define MHI_BW_SCALE_RESULT(status, seq) (((status) & 0xF) << 8 | \
 					((seq) & 0xFF))
-#define MHI_BW_SCALE_NACK 0xF
+
+enum mhi_bw_scale_req_status {
+	MHI_BW_SCALE_SUCCESS = 0x0,
+	MHI_BW_SCALE_INVALID = 0x1,
+	MHI_BW_SCALE_NACK    = 0xF,
+};
 
 /* subsystem failure reason cfg command */
 #define MHI_TRE_CMD_SFR_CFG_PTR(ptr) (ptr)