Jonathan writes:
First set of IIO fixes for the 4.19 cycle.
* ad9523
- sysfs write should return the number of characters used or an error, not
0 which could result in an infinite loop in userspace.
* lsm6dsx
- Fix computation of length when updating the watermark to include
timestamps avoiding the watermark being set earlier than intended.
* maxim_thermocouple
- Revert a patch adding the max31856 as it's not actually compatible with
the register set that this driver supports.
* si1133
- Fix an impossible value check so we don't always error out whether the
passed in value is good or bad.
eca743dc37