Commit 430841a3 authored Jan 10, 2014 by Subhash Jadavani

scsi: ufs-msm: don't enable interrupt aggregation



Current versions of UFS host controllers on our MSMs have interrupt
aggregation logic broken. Interrupt aggregation may not work if both
threshold count and timeout is enabled. Hence disable interrupt
aggregation by enabling UFSHCD_QUIRK_BROKEN_INTR_AGGR quirk until
its fixed in the newer UFS host controller revisions.

Change-Id: I063c6d577c370bfcf5648b4b0df9292c30984c63
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>

parent 2d37de8c

drivers/scsi/ufs/ufs-msm.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1672,6 +1672,7 @@ static void msm_ufs_advertise_quirks(struct ufs_hba *hba)
		else if ((major == 0x1) && (minor == 0x001) && (step == 0x0001))
		hba->quirks \|= (UFSHCD_QUIRK_BROKEN_HIBERN8
		\| UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS
		\| UFSHCD_QUIRK_BROKEN_INTR_AGGR
		\| UFSHCD_QUIRK_BROKEN_SUSPEND);
		}