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Message-Id: <1572671016-883-2-git-send-email-cang@codeaurora.org>
Date: Fri, 1 Nov 2019 22:03:31 -0700
From: Can Guo <cang@...eaurora.org>
To: asutoshd@...eaurora.org, nguyenb@...eaurora.org,
rnayak@...eaurora.org, linux-scsi@...r.kernel.org,
kernel-team@...roid.com, saravanak@...gle.com, salyzyn@...gle.com,
cang@...eaurora.org
Cc: Alim Akhtar <alim.akhtar@...sung.com>,
Avri Altman <avri.altman@....com>,
Pedro Sousa <pedrom.sousa@...opsys.com>,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Stanley Chu <stanley.chu@...iatek.com>,
Bean Huo <beanhuo@...ron.com>,
Subhash Jadavani <subhashj@...eaurora.org>,
Tomas Winkler <tomas.winkler@...el.com>,
Venkat Gopalakrishnan <venkatg@...eaurora.org>,
linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v1 1/6] scsi: ufs: Add device reset in link recovery path
In order to recover from hibern8 exit failure, perform a reset in
link recovery path before issuing link start-up.
Signed-off-by: Can Guo <cang@...eaurora.org>
---
drivers/scsi/ufs/ufshcd.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index c28c144..525f8e6 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -3859,6 +3859,9 @@ static int ufshcd_link_recovery(struct ufs_hba *hba)
ufshcd_set_eh_in_progress(hba);
spin_unlock_irqrestore(hba->host->host_lock, flags);
+ /* Reset the attached device */
+ ufshcd_vops_device_reset(hba);
+
ret = ufshcd_host_reset_and_restore(hba);
spin_lock_irqsave(hba->host->host_lock, flags);
--
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