[PATCH v8 3/3] ufs: core: add a quirk for MediaTek SDB mode aborted

[peter.wang at mediatek.com]

From: Peter Wang <peter.wang at mediatek.com>

Because the MediaTek UFS controller uses UTRLCLR to clear commands
and fills the OCS with ABORTED, this patch introduces a quirk to
treat ABORTED as INVALID_OCS_VALUE.

Signed-off-by: Peter Wang <peter.wang at mediatek.com>
---
 drivers/ufs/core/ufshcd.c       | 5 ++++-
 drivers/ufs/host/ufs-mediatek.c | 1 +
 include/ufs/ufshcd.h            | 6 ++++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index b5c7bc50a27e..b42079c3d634 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -5404,7 +5404,10 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp,
 		}
 		break;
 	case OCS_ABORTED:
-		result |= DID_ABORT << 16;
+		if (hba->quirks & UFSHCD_QUIRK_OCS_ABORTED)
+			result |= DID_REQUEUE << 16;
+		else
+			result |= DID_ABORT << 16;
 		dev_warn(hba->dev,
 				"OCS aborted from controller = %x for tag %d\n",
 				ocs, lrbp->task_tag);
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index 02c9064284e1..8a4c1b8f5a26 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -1021,6 +1021,7 @@ static int ufs_mtk_init(struct ufs_hba *hba)
 	hba->quirks |= UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL;
 	hba->quirks |= UFSHCD_QUIRK_MCQ_BROKEN_INTR;
 	hba->quirks |= UFSHCD_QUIRK_MCQ_BROKEN_RTC;
+	hba->quirks |= UFSHCD_QUIRK_OCS_ABORTED;
 	hba->vps->wb_flush_threshold = UFS_WB_BUF_REMAIN_PERCENT(80);
 
 	if (host->caps & UFS_MTK_CAP_DISABLE_AH8)
diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h
index 0fd2aebac728..8f156803d703 100644
--- a/include/ufs/ufshcd.h
+++ b/include/ufs/ufshcd.h
@@ -684,6 +684,12 @@ enum ufshcd_quirks {
 	 * single doorbell mode.
 	 */
 	UFSHCD_QUIRK_BROKEN_LSDBS_CAP			= 1 << 25,
+
+	/*
+	 * Some host controllers set OCS_ABORTED after UTRLCLR (SDB mode),
+	 * this quirk is set to treat OCS: ABORTED as INVALID_OCS_VALUE
+	 */
+	UFSHCD_QUIRK_OCS_ABORTED			= 1 << 26,
 };
 
 enum ufshcd_caps {
-- 
2.45.2