tree db99163379f955706b89db9ab6953dccd53c1e60
parent d29f8aa09da3a1daea160684fafc681c50c26a47
author Justin Ledford <justinledford@google.com> 1661562129 +0000
committer Ed Tanous <ed@tanous.net> 1662697864 +0000

fansensor: enable fan sensors through fanN_enable sysfs if available

The hwmon sysfs standard defines a fanN_enable file to enable or
disable the sensors[0]. This change will attempt to enable the sensors
with this enable file if they are found.

Tested:
with max31790 and recent patch[1] and saw that fanN_enable files
were 0 before fansensor started, and 1 after fansensor started, with the
appropriate entity-manager config.

[0]: https://www.kernel.org/doc/html/latest/hwmon/sysfs-interface.html#fans
[1]: https://patchwork.kernel.org/project/linux-hwmon/patch/20220829195930.2521755-1-justinledford@google.com/

Signed-off-by: Justin Ledford <justinledford@google.com>
Signed-off-by: Ed Tanous <edtanous@google.com>
Change-Id: Ic56a6528d3fa468d54c03c674540179d4a56036b