diff options
Diffstat (limited to 'drivers/scsi/ufs/ufs-qcom.c')
| -rw-r--r-- | drivers/scsi/ufs/ufs-qcom.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 798a74535ea7..9d70ee149d3e 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -910,8 +910,11 @@ static void ufs_qcom_dev_ref_clk_ctrl(struct ufs_qcom_host *host, bool enable) writel_relaxed(temp, host->dev_ref_clk_ctrl_mmio); - /* ensure that ref_clk is enabled/disabled before we return */ - wmb(); + /* + * Make sure the write to ref_clk reaches the destination and + * not stored in a Write Buffer (WB). + */ + readl(host->dev_ref_clk_ctrl_mmio); /* * If we call hibern8 exit after this, we need to make sure that |