From f306f06d9a157774eec9b6129d72c59a0f136b0a Mon Sep 17 00:00:00 2001 From: sheebab Date: Tue, 3 Dec 2019 11:07:15 +0100 Subject: [PATCH] scsi: ufs: Disable autohibern8 feature in Cadence UFS commit d168001d14eccfda229b4a41a2c31a21e3c379da upstream. 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: Signed-off-by: sheebab Reviewed-by: Alim Akhtar Tested-by: Vignesh Raghavendra Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/ufs/cdns-pltfrm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/scsi/ufs/cdns-pltfrm.c b/drivers/scsi/ufs/cdns-pltfrm.c index b2af04c57a39..6feeb0faf123 100644 --- a/drivers/scsi/ufs/cdns-pltfrm.c +++ b/drivers/scsi/ufs/cdns-pltfrm.c @@ -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; }