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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>
zero-sugar-mainline-defconfig
Stanley Chu 2020-06-12 09:26:24 +08:00 committed by Martin K. Petersen
parent 896c9b4907
commit c0a18ee0ce
2 changed files with 3 additions and 0 deletions
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1
drivers/scsi/ufs/ufs_quirks.h
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@ -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

2
drivers/scsi/ufs/ufshcd.c
View File

@ -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,