| From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 |
| From: Can Guo <cang@codeaurora.org> |
| Date: Mon, 25 Nov 2019 22:53:31 -0800 |
| Subject: 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: Bean Huo <beanhuo@micron.com> |
| Reviewed-by: Avri Altman <avri.altman@wdc.com> |
| Signed-off-by: Can Guo <cang@codeaurora.org> |
| Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
| Signed-off-by: Asutosh Das <asutoshd@codeaurora.org> |
| --- |
| drivers/scsi/ufs/ufs.h | 6 +++--- |
| 1 file changed, 3 insertions(+), 3 deletions(-) |
| |
| diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h |
| index 3327981ef894..c89f21698629 100644 |
| --- a/drivers/scsi/ufs/ufs.h |
| +++ b/drivers/scsi/ufs/ufs.h |
| @@ -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 */ |
| |
| /* |
