[PATCH v1 1/9] scsi: ufs: add support to allow non standard behaviours (quirks)

From: Asutosh Das
Date: Fri Jul 06 2018 - 08:40:30 EST


From: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>

Some implementation of UFS host controller HW might have some
non-standard behaviours (quirks) when compared to behaviour
specified by UFSHCI specification. This patch adds a quirk
for broken hibernate support.

Signed-off-by: Subhash Jadavani <subhashj@xxxxxxxxxxxxxx>
Signed-off-by: Can Guo <cang@xxxxxxxxxxxxxx>
Signed-off-by: Asutosh Das <asutoshd@xxxxxxxxxxxxxx>
---
drivers/scsi/ufs/ufshcd.h | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index f51758f..e996a08 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -613,6 +613,9 @@ struct ufs_hba {
* enabled via HCE register.
*/
#define UFSHCI_QUIRK_BROKEN_HCE 0x400
+
+ /* HIBERN8 support is broken */
+ #define UFSHCD_QUIRK_BROKEN_HIBERN8 0x800
unsigned int quirks; /* Deviations from standard UFSHCI spec. */

/* Device deviations from standard UFS device spec. */
--
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