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Commit e42d52ca authored by Stanley Chu's avatar Stanley Chu Committed by Greg Kroah-Hartman
Browse files

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: default avatarBean Huo <beanhuo@micron.com>
Reviewed-by: default avatarAlim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: default avatarStanley Chu <stanley.chu@mediatek.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent f6f3fdf5

drivers/scsi/ufs/ufs_quirks.h

+1 −0
Original line number Diff line number Diff line
@@ -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

drivers/scsi/ufs/ufshcd.c

+2 −0
Original line number Diff line number Diff line
@@ -178,6 +178,8 @@ ufs_get_pm_lvl_to_link_pwr_state(enum ufs_pm_level lvl) 


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),