linux-arm-msm.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Rob Herring <robh@kernel.org>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	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: Andy Gross <agross@kernel.org>, 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: Re: [PATCH v4 2/3] scsi: ufs-qcom: Implement device_reset vops
Date: Mon, 02 Sep 2019 14:38:51 +0100	[thread overview]
Message-ID: <5d6d1b6c.1c69fb81.e1729.0655@mx.google.com> (raw)
In-Reply-To: <20190828191756.24312-3-bjorn.andersson@linaro.org>

On Wed, 28 Aug 2019 12:17:55 -0700, Bjorn Andersson wrote:
> The UFS_RESET pin on Qualcomm SoCs are controlled by TLMM and exposed
> through the GPIO framework. Acquire the device-reset GPIO and use this
> to implement the device_reset vops, to allow resetting the attached
> memory.
> 
> Based on downstream support implemented by Subhash Jadavani
> <subhashj@codeaurora.org>.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
> ---
> 
> Changes since v3:
> - Renamed device-reset-gpios to just reset-gpios.
> - Explicitly bail on !host->device_reset, to not rely on passing NULL to
>   gpiod_set_value_cansleep()
> 
>  .../devicetree/bindings/ufs/ufshcd-pltfrm.txt |  2 ++
>  drivers/scsi/ufs/ufs-qcom.c                   | 36 +++++++++++++++++++
>  drivers/scsi/ufs/ufs-qcom.h                   |  4 +++
>  3 files changed, 42 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>


  reply	other threads:[~2019-09-02 13:38 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-28 19:17 [PATCH v4 0/3] Qualcomm UFS device reset support Bjorn Andersson
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)
2019-08-28 19:17 ` [PATCH v4 2/3] scsi: ufs-qcom: Implement device_reset vops Bjorn Andersson
2019-09-02 13:38   ` Rob Herring [this message]
2019-08-28 19:17 ` [PATCH v4 3/3] arm64: dts: qcom: sdm845: Specify UFS device-reset GPIO Bjorn Andersson
2019-08-30  5:59 ` [PATCH] arm64: dts: qcom: sdm845: Use UFS reset gpio instead of pinctrl Stephen Boyd
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=5d6d1b6c.1c69fb81.e1729.0655@mx.google.com \
    --to=robh@kernel.org \
    --cc=alim.akhtar@samsung.com \
    --cc=avri.altman@wdc.com \
    --cc=bjorn.andersson@linaro.org \
    --cc=jejb@linux.ibm.com \
    --cc=mark.rutland@arm.com \
    --cc=martin.petersen@oracle.com \
    --cc=pedrom.sousa@synopsys.com \
    /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).