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    SubjectRE: [STABLE REGRESSION] iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
    Date
    Hi Ritesh,
    I do not have the environment so should not have a try but I think Srinivas's patch should be Ok for your platform.
    Please have a try.

    Thanks a lot!


    BR
    Song Hongyan

    -----Original Message-----
    From: Ritesh Raj Sarraf [mailto:rrs@researchut.com]
    Sent: Tuesday, April 4, 2017 3:14 AM
    To: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>; Song, Hongyan <hongyan.song@intel.com>; linux-iio <linux-iio@vger.kernel.org>
    Cc: stable@vger.kernel.org; linux-kernel@vger.kernel.org
    Subject: Re: [STABLE REGRESSION] iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3

    Adding Stable, LKML and IIO MLs.

    Hello Hongyan,

    Do you have any feedback ? With the bisected commit reverted, I've been successfully running the machine without any issues.

    Ritesh


    On Sat, 2017-04-01 at 08:14 -0700, Srinivas Pandruvada wrote:
    > Hello Hongyan,
    >
    > Can you check the findings of Ritesh?
    >
    > Thanks,
    > Srinivas
    >
    > On Sat, 2017-04-01 at 14:07 +0530, Ritesh Raj Sarraf wrote:
    > > Hello Srinivas,
    > >
    > > With the Linux 4.10.7 release, I have encountered a regression
    > > introduced on my Lenovo Yoga 2 13, for the ITE Rotation Sensor.
    > >
    > >
    > > rrs@learner:~$ lsusb
    > > Bus 001 Device 002: ID 8087:8000 Intel Corp. Bus 001 Device 001: ID
    > > 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID
    > > 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 006: ID
    > > 048d:8350 Integrated Technology Express, Inc.
    > > Bus 002 Device 005: ID 0bda:b728 Realtek Semiconductor Corp. Bus 002
    > > Device 004: ID 04f2:b40f Chicony Electronics Co., Ltd Bus 002 Device
    > > 003: ID 04f3:0303 Elan Microelectronics Corp.
    > > Bus 002 Device 002: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129
    > > Card Reader Controller Bus 002 Device 001: ID 1d6b:0002 Linux
    > > Foundation 2.0 root hub
    > > 2017-04-01 / 14:04:49 ♒♒♒  ☺
    > >
    > >
    > > The ITE sensors do not feed any data on the 4.10.7 kernel. Reverting
    > > back to
    > > 4.10.5, everything works back.
    > >
    > >
    > > After a git bisect, the culprit reported is:
    > >
    > > Bisecting: 0 revisions left to test after this (roughly 0 steps)
    > > [6c2aab07d12436af1cd8d9ac1d117a442cc91eec] iio: hid-sensor-trigger:
    > > Change get
    > > poll value function order to avoid sensor properties losing after
    > > resume from S3
    > > 1
    > >
    > > Can you please review my findings to confirm that it really is a
    > > regression bug
    > > ?
    > >
    > >
    > > Thanks,
    > > Ritesh
    > >
    --
    Ritesh Raj Sarraf
    RESEARCHUT - http://www.researchut.com
    "Necessity is the mother of invention."
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