Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 6A8A3C447B8
From:   Can Guo <cang@qti.qualcomm.com>
To:     asutoshd@codeaurora.org, nguyenb@codeaurora.org,
        rnayak@codeaurora.org, linux-scsi@vger.kernel.org,
        kernel-team@android.com, saravanak@google.com, salyzyn@google.com,
        cang@codeaurora.org
Cc:     Alim Akhtar <alim.akhtar@samsung.com>,
        Avri Altman <avri.altman@wdc.com>,
        Pedro Sousa <pedrom.sousa@synopsys.com>,
        "James E.J. Bottomley" <jejb@linux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@oracle.com>,
        Tomas Winkler <tomas.winkler@intel.com>,
        Stanley Chu <stanley.chu@mediatek.com>,
        linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 2/4] scsi: ufs: Update VCCQ2 and VCCQ min/max voltage hard codes
Date:   Mon, 25 Nov 2019 22:53:31 -0800
Message-Id: <1574751214-8321-3-git-send-email-cang@qti.qualcomm.com>
In-Reply-To: <1574751214-8321-1-git-send-email-cang@qti.qualcomm.com>
References: <1574751214-8321-1-git-send-email-cang@qti.qualcomm.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Can Guo <cang@codeaurora.org>

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.

Signed-off-by: Can Guo <cang@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 385bac8..0ded95e 100644
--- a/drivers/scsi/ufs/ufs.h
+++ b/drivers/scsi/ufs/ufs.h
@@ -500,9 +500,9 @@ 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 */
 
 /*
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project