diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 94ec0f524acfdc8c6e4aa1e2c5c76765c1a318f8..c809619d23ce85f3d700c982f164b94e51aa0378 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -2893,9 +2893,6 @@ int ata_do_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev)
 	if (used_dma && (ap->host->flags & ATA_HOST_SIMPLEX))
 		ap->host->simplex_claimed = ap;
 
-	/* step5: chip specific finalisation */
-	if (ap->ops->post_set_mode)
-		ap->ops->post_set_mode(ap);
  out:
 	if (rc)
 		*r_failed_dev = dev;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 666592ef0b256c0ccc8f805ab360c66f4a975e38..85f7b1bd1482ae7094c1d00eeec00b72b2b88d5f 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -574,8 +574,6 @@ struct ata_port_operations {
 	void (*phy_reset) (struct ata_port *ap); /* obsolete */
 	int  (*set_mode) (struct ata_port *ap, struct ata_device **r_failed_dev);
 
-	void (*post_set_mode) (struct ata_port *ap);
-
 	int (*cable_detect) (struct ata_port *ap);
 
 	int  (*check_atapi_dma) (struct ata_queued_cmd *qc);