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| author | Can Guo <cang@codeaurora.org> | 2021-04-25 20:48:38 -0700 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2021-04-28 23:15:17 -0400 |
| commit | 23043dd87b153d02eaf676e752d32429be5e5126 (patch) | |
| tree | 48e68933ec8d8610915d5e1e8fc113f6bb3f2a38 /drivers | |
| parent | fcb16d9a8ecf1e9bfced0fc654ea4e2caa7517f4 (diff) | |
| download | linux-stable-23043dd87b153d02eaf676e752d32429be5e5126.tar.gz linux-stable-23043dd87b153d02eaf676e752d32429be5e5126.tar.bz2 linux-stable-23043dd87b153d02eaf676e752d32429be5e5126.zip | |
scsi: ufs: core: Do not put UFS power into LPM if link is broken
During resume, if link is broken due to AH8 failure, make sure
ufshcd_resume() does not put UFS power back into LPM.
Link: https://lore.kernel.org/r/1619408921-30426-2-git-send-email-cang@codeaurora.org
Fixes: 4db7a2360597 ("scsi: ufs: Fix concurrency of error handler and other error recovery paths")
Reviewed-by: Daejun Park <daejun7.park@samsung.com>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 0625da7a42ee..19d3049a867c 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -8593,7 +8593,7 @@ static void ufshcd_vreg_set_lpm(struct ufs_hba *hba) } else if (!ufshcd_is_ufs_dev_active(hba)) { ufshcd_toggle_vreg(hba->dev, hba->vreg_info.vcc, false); vcc_off = true; - if (!ufshcd_is_link_active(hba)) { + if (ufshcd_is_link_hibern8(hba) || ufshcd_is_link_off(hba)) { ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq); ufshcd_config_vreg_lpm(hba, hba->vreg_info.vccq2); } @@ -8615,7 +8615,7 @@ static int ufshcd_vreg_set_hpm(struct ufs_hba *hba) !hba->dev_info.is_lu_power_on_wp) { ret = ufshcd_setup_vreg(hba, true); } else if (!ufshcd_is_ufs_dev_active(hba)) { - if (!ret && !ufshcd_is_link_active(hba)) { + if (!ufshcd_is_link_active(hba)) { ret = ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); if (ret) goto vcc_disable; |