Restore function is incorrect

[rothcar]

The restore function performs several actions:

1. resets the PoE chip
2. (supposedly) re-initializes the PoE chip according to the driver init defaults

What this command should do is

1. (optionally) reset the PoE chip
2. apply driver init defaults.
3. load a persistent config of my choice

When I run the restore command, it immediately complains that it cannot load the persistent config. This implies that persistent config is either not applied, or not applied consistently.
Given that poed automatically overwrites the persistent config at regular intervals, this effectively means that "restore" leaves the PoE system in an unknown/inconsistent state

[leonchiang]

Same issues: #13 #14
Relates issue: #10

We will implement poecli cfg sub command for manipulate by manually the config file.
EX:

• Load persistent config(P1-enable):
  poecli cfg --load
poecli show -p 1
1 Port On (0x01) enable low IEEE802.3AF/AT 4 400 (mW) 30000 (mW) 54.2 (V) 9 (mA)

• Save runtime to persistent config(P1-disabled by poecli set, must delay 4~5s because runtime dump will not active imminently ):
  poecli set -p 1 -e 0
poecli cfg --save

cat  /etc/poe_agent/poe_perm_cfg.json 
.....
   "PORTS_CONFIGURATIONS": [
        {
            "port_id": 1,
            "enDis": "enable",
            "priority": "low",
            "power_limit": 30000
        },
.....

• Restore factory(Then apply last good config):

1. poecli restore_poe_system
   (Runtime config become platform state after initialize done, all port disabled in runtime state)
2. poecli cfg --load
   (Will load current persistent config to chip, Port 1 will be enabled)

• Load an test config:
  poecli cfg --load --config /root/test_config.json

• Save runtime config [ /run/poe_runtime_cfg.json ] to some place:
  poecli cfg --save --config /root/good_config.json

[leonchiang]

Please check devel-0001 branch tag:
https://github.com/leonchiang/poed/releases/tag/issue_fix_0001