From: Can Guo <cang@codeaurora.org>
To: asutoshd@codeaurora.org, nguyenb@codeaurora.org,
hongwus@codeaurora.org, rnayak@codeaurora.org,
linux-scsi@vger.kernel.org, kernel-team@android.com,
saravanak@google.com, salyzyn@google.com, cang@codeaurora.org
Cc: Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Alim Akhtar <alim.akhtar@samsung.com>,
Avri Altman <avri.altman@wdc.com>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Alexios Zavras <alexios.zavras@intel.com>,
Bart Van Assche <bvanassche@acm.org>,
Evan Green <evgreen@chromium.org>, Bean Huo <beanhuo@micron.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT),
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 2/2] scsi: ufs-qcom: Apply QUIRK_HOST_TACTIVATE for WDC UFS devices
Date: Sun, 23 Feb 2020 20:09:22 -0800 [thread overview]
Message-ID: <1582517363-11536-3-git-send-email-cang@codeaurora.org> (raw)
In-Reply-To: <1582517363-11536-1-git-send-email-cang@codeaurora.org>
Western Digital UFS devices require host's PA_TACTIVATE to be lower than
device's PA_TACTIVATE, otherwise it may get stuck during hibern8 sequence.
Signed-off-by: Can Guo <cang@codeaurora.org>
---
drivers/scsi/ufs/ufs-qcom.c | 3 +++
drivers/scsi/ufs/ufs_quirks.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index c69c29a1c..4caa57f 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -956,6 +956,9 @@ static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
if (hba->dev_quirks & UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME)
err = ufs_qcom_quirk_host_pa_saveconfigtime(hba);
+ if (hba->dev_info.wmanufacturerid == UFS_VENDOR_WDC)
+ hba->dev_quirks |= UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE;
+
return err;
}
diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index d0ab147..df7a1e6 100644
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -15,6 +15,7 @@
#define UFS_VENDOR_TOSHIBA 0x198
#define UFS_VENDOR_SAMSUNG 0x1CE
#define UFS_VENDOR_SKHYNIX 0x1AD
+#define UFS_VENDOR_WDC 0x145
/**
* ufs_dev_fix - ufs device quirk info
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2020-02-24 4:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-24 4:09 [PATCH v2 0/2] Enable HOST_PA_TACTIVATE quirk for WDC UFS devices Can Guo
2020-02-24 4:09 ` [PATCH v2 1/2] scsi: ufs: Allow vendor apply device quirks in advance Can Guo
2020-02-24 4:39 ` Stanley Chu
2020-02-24 4:53 ` Can Guo
2020-02-24 4:09 ` Can Guo [this message]
2020-02-24 6:02 ` [PATCH v2 2/2] scsi: ufs-qcom: Apply QUIRK_HOST_TACTIVATE for WDC UFS devices Avri Altman
2020-02-25 16:58 ` Asutosh Das (asd)
2020-02-29 1:40 ` [PATCH v2 0/2] Enable HOST_PA_TACTIVATE quirk " Martin K. Petersen
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