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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 v2 0/2] Add temperature notification support
Date: Thu, 9 Sep 2021 09:34:42 +0300 [thread overview]
Message-ID: <20210909063444.22407-1-avri.altman@wdc.com> (raw)
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 | 180 +++++++++++++++++++++++++++++++++++
drivers/scsi/ufs/ufs.h | 8 ++
drivers/scsi/ufs/ufshcd.c | 46 +++++++++
drivers/scsi/ufs/ufshcd.h | 18 ++++
6 files changed, 263 insertions(+)
create mode 100644 drivers/scsi/ufs/ufs-hwmon.c
--
2.17.1
next reply other threads:[~2021-09-09 6:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-09 6:34 Avri Altman [this message]
2021-09-09 6:34 ` [PATCH v2 1/2] scsi: ufs: Probe for " Avri Altman
2021-09-09 16:26 ` Bart Van Assche
2021-09-10 15:58 ` Avri Altman
2021-09-09 16:51 ` Guenter Roeck
2021-09-10 16:13 ` Avri Altman
2021-09-09 6:34 ` [PATCH v2 2/2] scsi: ufs: Add temperature notification exception handling Avri Altman
2021-09-09 16:54 ` Guenter Roeck
2021-09-10 16:32 ` Avri Altman
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