From: sheebab <sheebab@cadence.com>
To: <alim.akhtar@samsung.com>, <avri.altman@wdc.com>,
<pedrom.sousa@synopsys.com>, <jejb@linux.ibm.com>,
<martin.petersen@oracle.com>, <stanley.chu@mediatek.com>,
<beanhuo@micron.com>, <yuehaibing@huawei.com>,
<linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<vigneshr@ti.com>
Cc: <mparab@cadence.com>, <rafalc@cadence.com>,
sheebab <sheebab@cadence.com>
Subject: [PATCH] scsi: ufs: Disable autohibern8 feature in Cadence UFS
Date: Tue, 3 Dec 2019 11:07:15 +0100 [thread overview]
Message-ID: <1575367635-22662-1-git-send-email-sheebab@cadence.com> (raw)
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
Signed-off-by: sheebab <sheebab@cadence.com>
---
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..882425d1166b 100644
--- a/drivers/scsi/ufs/cdns-pltfrm.c
+++ b/drivers/scsi/ufs/cdns-pltfrm.c
@@ -98,6 +98,12 @@ static int cdns_ufs_link_startup_notify(struct ufs_hba *hba,
* completed.
*/
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;
}
--
2.17.1
next reply other threads:[~2019-12-03 10:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191203100929epcas3p3e781cc87ff70f82bc1e708ba654456d2@epcas3p3.samsung.com>
2019-12-03 10:07 ` sheebab [this message]
2019-12-03 10:31 ` Alim Akhtar
2019-12-04 13:36 ` Vignesh Raghavendra
2019-12-10 0:05 ` Martin K. Petersen
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