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scsi: ufs: Disable autohibern8 feature in Cadence UFS 

This patch disables autohibern8 feature in Cadence UFS.  The autohibern8
feature has issues due to which unexpected interrupt trigger is happening.
After the interrupt issue is sorted out, autohibern8 feature will be
re-enabled

Link: https://lore.kernel.org/r/1575367635-22662-1-git-send-email-sheebab@cadence.com
Cc: <stable@vger.kernel.org>
Signed-off-by: sheebab <sheebab@cadence.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
sheebab 2019-12-03 11:07:15 +01:00 committed by Martin K. Petersen
parent fee92f2577
commit d168001d14
1 changed files with 6 additions and 0 deletions
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6
drivers/scsi/ufs/cdns-pltfrm.c
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@ -99,6 +99,12 @@ static int cdns_ufs_link_startup_notify(struct ufs_hba *hba,
*/
ufshcd_dme_set(hba, UIC_ARG_MIB(PA_LOCAL_TX_LCC_ENABLE), 0);
/*
* Disabling Autohibern8 feature in cadence UFS
* to mask unexpected interrupt trigger.
*/
hba->ahit = 0;
return 0;
}