From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Andy Gross <agross@kernel.org>,
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>
Cc: Bean Huo <beanhuo@micron.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, linux-scsi@vger.kernel.org,
Linus Walleij <linus.walleij@linaro.org>
Subject: [PATCH v4 0/3] Qualcomm UFS device reset support
Date: Wed, 28 Aug 2019 12:17:53 -0700 [thread overview]
Message-ID: <20190828191756.24312-1-bjorn.andersson@linaro.org> (raw)
This series adds a new ufs vops to allow platform specific methods for
resetting an attached UFS device, then implements this for the Qualcomm driver.
This reset seems to be necessary for the majority of Dragonboard845c devices.
Bean requested in v3 that a software fallback mechanism, using
UIC_CMD_DME_END_PT_RST. I have not been successful in validating that this
works for me, so I'm postponing this effort and hoping we can add it
incrementally at a later time.
Bjorn Andersson (3):
scsi: ufs: Introduce vops for resetting device
scsi: ufs-qcom: Implement device_reset vops
arm64: dts: qcom: sdm845: Specify UFS device-reset GPIO
.../devicetree/bindings/ufs/ufshcd-pltfrm.txt | 2 ++
arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 2 ++
arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 2 ++
drivers/scsi/ufs/ufs-qcom.c | 36 +++++++++++++++++++
drivers/scsi/ufs/ufs-qcom.h | 4 +++
drivers/scsi/ufs/ufshcd.c | 6 ++++
drivers/scsi/ufs/ufshcd.h | 8 +++++
7 files changed, 60 insertions(+)
--
2.18.0
next reply other threads:[~2019-08-28 19:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-28 19:17 Bjorn Andersson [this message]
2019-08-28 19:17 ` [PATCH v4 1/3] scsi: ufs: Introduce vops for resetting device Bjorn Andersson
2019-09-02 8:39 ` [EXT] " Bean Huo (beanhuo)
2019-09-03 5:01 ` Stanley Chu
2019-08-28 19:17 ` [PATCH v4 2/3] scsi: ufs-qcom: Implement device_reset vops Bjorn Andersson
2019-09-02 13:38 ` Rob Herring
2019-08-28 19:17 ` [PATCH v4 3/3] arm64: dts: qcom: sdm845: Specify UFS device-reset GPIO Bjorn Andersson
2019-09-01 6:12 ` [PATCH v4 0/3] Qualcomm UFS device reset support Avri Altman
2019-09-07 20:37 ` Martin K. Petersen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190828191756.24312-1-bjorn.andersson@linaro.org \
--to=bjorn.andersson@linaro.org \
--cc=agross@kernel.org \
--cc=alim.akhtar@samsung.com \
--cc=avri.altman@wdc.com \
--cc=beanhuo@micron.com \
--cc=devicetree@vger.kernel.org \
--cc=jejb@linux.ibm.com \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=martin.petersen@oracle.com \
--cc=pedrom.sousa@synopsys.com \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).