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From: Sean Nyekjaer <sean@geanix.com>
To: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: linux-iio <linux-iio@vger.kernel.org>,
	Jonathan Cameron <Jonathan.Cameron@huawei.com>
Subject: Re: IIO timestamp get skewed when suspending (st_lsm6dsx)
Date: Tue, 2 Jun 2020 15:39:12 +0200	[thread overview]
Message-ID: <b3363da1-033b-4afa-59cd-28328ec32066@geanix.com> (raw)
In-Reply-To: <26401237-5e3b-faf7-35c7-9d6e22f6d239@geanix.com>

>> are these values from the hw FIFO? can you please add sensor->ts_ref 
>> to the trace and
>> a log into st_lsm6dsx_reset_hw_ts?
>>
> 
> Hi,
> 
> This certainly looks weird,
> 
> https://gist.github.com/sknsean/b32bae140008cf446a8fea58e305da47
> 
> Seems like the ts_ref is updated and used but not read/used in userspace...
> 
> /Sean

added to st_lsm6dsx_read_fifo :

printk("ts_ref %lld, ts %lld, sample_time %lld\n", acc_sensor->ts_ref, 
ts, acc_sensor->ts_ref + ts);

https://gist.github.com/sknsean/3ad1e9e05cb0e2ef811a3c83492a1980

Suspend again was 15sec

/Sean

  reply	other threads:[~2020-06-02 13:39 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-28 18:01 IIO timestamp get skewed when suspending (st_lsm6dsx) Sean Nyekjaer
2020-05-28 21:07 ` Lorenzo Bianconi
2020-05-29  7:32   ` Sean Nyekjaer
2020-05-29  7:44     ` Lorenzo Bianconi
2020-05-29  8:33       ` Sean Nyekjaer
2020-05-29  8:50         ` Lorenzo Bianconi
2020-05-29 11:19           ` Sean Nyekjaer
2020-05-29 12:16             ` Lorenzo Bianconi
2020-05-29 12:29               ` Sean Nyekjaer
2020-06-02 11:48               ` Sean Nyekjaer
2020-06-02 13:39                 ` Sean Nyekjaer [this message]
2020-06-02 18:02                   ` Sean Nyekjaer
2020-06-03  8:06                     ` Lorenzo Bianconi
2020-06-03 10:05                       ` Sean Nyekjaer
2020-06-03 10:28                         ` Lorenzo Bianconi
2020-06-03 10:37                           ` Sean Nyekjaer
2020-06-03 10:51                             ` Lorenzo Bianconi
2020-06-03 11:29                               ` Sean Nyekjaer
2020-06-03 12:12                                 ` Lorenzo Bianconi
2020-06-03 12:49                                   ` Sean Nyekjaer
2020-06-03 12:56                                     ` Lorenzo Bianconi
2020-06-03 13:15                                       ` Sean Nyekjaer
2020-06-03 13:40                                         ` Lorenzo Bianconi
2020-06-03 14:10                                           ` Sean Nyekjaer
2020-06-08 12:20                                             ` Sean Nyekjaer
2020-06-08 14:09                                               ` Thomas Gleixner
2020-07-10 12:10   ` Sean Nyekjaer
2020-07-10 13:20     ` Lorenzo Bianconi

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