Messages in this thread | | | Subject | Re: IIO timestamp get skewed when suspending (st_lsm6dsx) | From | Sean Nyekjaer <> | Date | Mon, 8 Jun 2020 14:20:40 +0200 |
| |
Hi Thomas,
I have a question regarding CLOCK_REALTIME and CLOCK_BOOTTIME when resuming from suspend.
We have run into problems with drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c + the first patch from Lorenzo Bianconi in this thread. The accelerometer have an internal FIFO that includes a timestamp. When we resume from suspend, the driver resets the fifo ts counter and sets an internal reference to that time. But to me it looks like both CLOCK_REALTIME and CLOCK_BOOTIME aren't ready when st_lsm6dsx_resume() is called.
If this is a limitation, can you point to other drivers that have been able to workaround it? Or can we wait for a flag or similar?
Best regards, Sean Nyekjaer
| |