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authorStanley Chu <stanley.chu@mediatek.com>2020-06-12 04:26:24 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-26 11:31:00 +0300
commit2ba7c21c03c4c73d9afe568e9b824682226b097f (patch)
tree81729bb278d33367cf39905d6ccd34749febc665 /drivers/scsi
parent30872ac7dbf038869a2489d64bb8923cdb27d756 (diff)
downloadlinux-2ba7c21c03c4c73d9afe568e9b824682226b097f.tar.xz
scsi: ufs: Add DELAY_BEFORE_LPM quirk for Micron devices
[ Upstream commit c0a18ee0ce78d7957ec1a53be35b1b3beba80668 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/ufs/ufs_quirks.h1
-rw-r--r--drivers/scsi/ufs/ufshcd.c2
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index 5d2dfdb41a6f..758d3a67047d 100644
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -21,6 +21,7 @@
#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 bd21c9cdf818..ab628fd37e02 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -218,6 +218,8 @@ 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, UFS_DEVICE_NO_VCCQ),