scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices

It is confirmed that Micron device needs DELAY_BEFORE_LPM quirk to have a
delay before VCC is powered off. Sdd Micron vendor ID and this quirk for
Micron devices.

Link: https://lore.kernel.org/r/20200612012625.6615-2-stanley.chu@mediatek.com
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index e3175a63c676bda949658d304c48fcadda02c59e..e80d5f26a4424966d9ecf77630ed520b6c1d2ff4 100644 (file)
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -12,6 +12,7 @@
 #define UFS_ANY_VENDOR 0xFFFF
 #define UFS_ANY_MODEL  "ANY_MODEL"
 
+#define UFS_VENDOR_MICRON      0x12C
 #define UFS_VENDOR_TOSHIBA     0x198
 #define UFS_VENDOR_SAMSUNG     0x1CE
 #define UFS_VENDOR_SKHYNIX     0x1AD

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3037adb619f825eafe91081fdd1f4aab6cbb5d76..c75bb9a19e9ab7f34b08fad6a6cf55a0ec9a08d1 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -188,6 +188,8 @@ ufs_get_desired_pm_lvl_for_dev_link_state(enum ufs_dev_pwr_mode dev_state,
 
 static struct ufs_dev_fix ufs_fixups[] = {
        /* UFS cards deviations table */
+       UFS_FIX(UFS_VENDOR_MICRON, UFS_ANY_MODEL,
+               UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
        UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
                UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
        UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,