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Commit 97004f31 authored by Can Guo's avatar Can Guo Committed by Todd Kjos
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FROMGIT: scsi: ufs: Update VCCQ2 and VCCQ min/max voltage hard codes 

Per UFS 3.0 JEDEC standard, the VCCQ2 min voltage is 1.7v and the VCCQ
voltage range is 1.14v ~ 1.26v. Update their hard codes accordingly to make
sure they work in a safe range compliant for ver 1.0/1.1/2.0/2.1/3.0 UFS
devices.

Bug: 143632303
(cherry picked from commit dc2ec810907431865ad3f2a17f2aac192e7f54f3
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 5.6/scsi-queue)
Change-Id: Ib95425757355cf2f3dcc3f50cc2f995bb19e8a31
Link: https://lore.kernel.org/r/1574751214-8321-3-git-send-email-cang@qti.qualcomm.com


Reviewed-by: default avatarBean Huo <beanhuo@micron.com>
Reviewed-by: default avatarAvri Altman <avri.altman@wdc.com>
Signed-off-by: default avatarCan Guo <cang@codeaurora.org>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: default avatarAsutosh Das <asutoshd@codeaurora.org>
parent a49516da

drivers/scsi/ufs/ufs.h

+3 −3
Original line number Diff line number Diff line
@@ -499,9 +499,9 @@ struct ufs_query_res { 
#define UFS_VREG_VCC_MAX_UV	   3600000 /* uV */

#define UFS_VREG_VCC_1P8_MIN_UV    1700000 /* uV */

#define UFS_VREG_VCC_1P8_MAX_UV    1950000 /* uV */

#define UFS_VREG_VCCQ_MIN_UV	   1100000 /* uV */

#define UFS_VREG_VCCQ_MAX_UV	   1300000 /* uV */

#define UFS_VREG_VCCQ2_MIN_UV	   1650000 /* uV */

#define UFS_VREG_VCCQ_MIN_UV	   1140000 /* uV */

#define UFS_VREG_VCCQ_MAX_UV	   1260000 /* uV */

#define UFS_VREG_VCCQ2_MIN_UV	   1700000 /* uV */

#define UFS_VREG_VCCQ2_MAX_UV	   1950000 /* uV */



/*