tree 0546480bdc353fe86f8c925db48a208c079a56ac
parent 37abe9be91df2bb173c9642a2740a425904d7921
author Chris Cain <cjcain@us.ibm.com> 1666044667 -0500
committer Chris Cain <cjcain@us.ibm.com> 1731601152 -0600

Add CapLimits dbus interface to occ-control app

The power cap limits were previously hosted by Settings, but those are
system settings and the limits are not really settings (users can not
adjust these). This will allow occ-control to update these limits as
required but makes them readonly on dbus.
occ-control will now be persisting these limits.

Tested on Rainier:

'''
=> busctl -l introspect org.open_power.OCC.Control /xyz/openbmc_project/control/host0/power_cap_limits
...
xyz.openbmc_project.Control.Power.CapLimits interface -         -            -
.MaxPowerCapValue                           property  u         2777         emits-change
.MinPowerCapValue                           property  u         1286         emits-change
.MinSoftPowerCapValue                       property  u         556          emits-change

=> hexdump /var/lib//openpower-occ-control/powerCapData
0000000 0001 0000 0001 0000 022c 0000 0506 0000
0000010 0ad9 0000
0000014
'''

Change-Id: I75fd98be18c884961f417cc53213b9cb06a82947
Signed-off-by: Chris Cain <cjcain@us.ibm.com>