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@xxxxxxxxxxxxxx] Sent: Tuesday, April 4, 2017 3:14 AM To: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx>; Song, Hongyan <hongyan.song@xxxxxxxxx>; linux-iio <linux-iio@xxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx 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."