Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
IronPort-SDR: E3ixQDXeHbVMl9yYxdOxQ6zd4fI2SyWxBZ68atuIDgQu8/F5EtKUO6UNFC/AYgWrxuGw5tcCdk
 9JCBZdvoAYPMdRbPjI9eH7tS9zh4RiTA+oVu1aSvm7XyGR+487tc799Vo4ZSGLQzy0u8OeKzMX
 RT6DUHKEnrTPHLTU00YoHqSJkgab2uodV6ilw5/IJ0l10dsDZsU8Q+S+x6+aba7U9CyOMkrC8W
 3dIORvIbKKdpKKmyHKme8lAc8p/1of0WAC7ubCJ1QnkyFO2c10gEYwXWcJVre1QklUed7aDv5D
 DaawzFNONiRFH8MwbW29f57H
IronPort-SDR: 41ZbyaYrvyu1mrYcLg9HCBAjUUotaNvOcaQZNfxSXzs3W4gkqp+O2nbdrxDW7jPmb7LSqGxgfR
 4Lj6PaP/iJdbAzbllOyQCdc9VbxaDVu3mEjGdfQzruckCeHQGaA5tHnXgNaolrpC2gsF3I5Qhd
 jZbJoOB1DuCFsHU8sqRCdrGcVXe1CLAA4EBbpV6SyjKUIoXj6q/Efppln48Ak7DXWIKGqC5D5H
 Np94bBwCC2Ya7ph6vMXgHZdaz4bZmra1xfl3fHMGa0NfjJyRV3/MIO6IlpXUq2D5iFVYJQfjq6
 yqI=
WDCIronportException: Internal
From:   Avri Altman <avri.altman@wdc.com>
To:     "James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
        "Martin K . Petersen" <martin.petersen@oracle.com>
Cc:     linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org,
        Bart Van Assche <bvanassche@acm.org>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Bean Huo <beanhuo@micron.com>,
        Guenter Roeck <linux@roeck-us.net>,
        Avri Altman <avri.altman@wdc.com>
Subject: [PATCH v3 0/2] Add temperature notification support
Date:   Sun, 12 Sep 2021 16:19:17 +0300
Message-Id: <20210912131919.12962-1-avri.altman@wdc.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

v2 -> v3:
 - Attend Bart's & Guenter's comments

v1 -> v2:
 - Add a hw monitor device if both the platform & the device support it
 - Remove the sysfs patch: no need to duplicate /sys/class/hwmon

UFS3.0 allows using the ufs device as a temperature sensor. The purpose
of this optional feature is to provide notification to the host of the
UFS device case temperature. It allows reading of a rough estimate
(+-10 degrees centigrade) of the current case temperature, and setting a
lower and upper temperature bounds, in which the device will trigger an
applicable exception event.

A previous attempt [1] tried a comprehensive approach.  Still, it was
unsuccessful. Here is a more modest approach that introduces just the
bare minimum to support temperature notification.

Thanks,
Avri

[1] https://lore.kernel.org/lkml/1582450522-13256-1-git-send-email-avi.shchislowski@wdc.com/

Avri Altman (2):
  scsi: ufs: Probe for temperature notification support
  scsi: ufs: Add temperature notification exception handling

 drivers/scsi/ufs/Kconfig     |  10 ++
 drivers/scsi/ufs/Makefile    |   1 +
 drivers/scsi/ufs/ufs-hwmon.c | 193 +++++++++++++++++++++++++++++++++++
 drivers/scsi/ufs/ufs.h       |   8 ++
 drivers/scsi/ufs/ufshcd.c    |  49 +++++++++
 drivers/scsi/ufs/ufshcd.h    |  20 ++++
 6 files changed, 281 insertions(+)
 create mode 100644 drivers/scsi/ufs/ufs-hwmon.c

-- 
2.17.1