Message ID | 20200511020031.25730-3-alim.akhtar@samsung.com (mailing list archive) |
---|---|
State | New, archived |
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[v8,01/10] scsi: ufs: add quirk to fix mishandling utrlclr/utmrlclr
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diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 3655b88fc862..0e9704da58bd 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4884,7 +4884,8 @@ static irqreturn_t ufshcd_transfer_req_compl(struct ufs_hba *hba) * false interrupt if device completes another request after resetting * aggregation and before reading the DB. */ - if (ufshcd_is_intr_aggr_allowed(hba)) + if (ufshcd_is_intr_aggr_allowed(hba) && + !(hba->quirks & UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR)) ufshcd_reset_intr_aggr(hba); tr_doorbell = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 071f0edf3f64..53096642f9a8 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -523,6 +523,12 @@ enum ufshcd_quirks { * Clear handling for transfer/task request list is just opposite. */ UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR = 1 << 6, + + /* + * This quirk needs to be enabled if host controller doesn't allow + * that the interrupt aggregation timer and counter are reset by s/w. + */ + UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR = 1 << 7, }; enum ufshcd_caps {