Revert "bus: mhi: Add memory barrier before ringing doorbell"

This reverts commit 516a1bd9a2a458685296558e030966678acdfab4.

1 files changed, 0 insertions, 8 deletions

diff --git a/drivers/bus/mhi/core/main.c b/drivers/bus/mhi/core/main.c
index ffecfd50037a..73b19dda82bb 100644
--- a/drivers/bus/mhi/core/main.c
+++ b/drivers/bus/mhi/core/main.c
@@ -101,10 +101,6 @@ void mhi_ring_cmd_db(struct mhi_controller *mhi_cntrl, struct mhi_cmd *mhi_cmd)
 
 	db = ring->iommu_base + (ring->wp - ring->base);
 	*ring->ctxt_wp = db;
-
-	/* Ensure MHI data structures update before ringing the doorbell. */
-	dma_wmb();
-
 	mhi_write_db(mhi_cntrl, ring->db_addr, db);
 }
 
@@ -116,10 +112,6 @@ void mhi_ring_chan_db(struct mhi_controller *mhi_cntrl,
 
 	db = ring->iommu_base + (ring->wp - ring->base);
 	*ring->ctxt_wp = db;
-
-	/* Ensure MHI data structures update before ringing the doorbell. */
-	dma_wmb();
-
 	mhi_chan->db_cfg.process_db(mhi_cntrl, &mhi_chan->db_cfg,
 				    ring->db_addr, db);
 }