tree bf08faea7d55e2d4fa89572d8f34c178d8f712dc
parent be73e6a4d11f6c9f6f6887918404901cd87386b8
author Yuan Li <yuan.li@linux.intel.com> 1560524312 +0800
committer Yuan Li <yuan.li@linux.intel.com> 1560984486 +0000

Support temp sensor on MCU which is available from I2C

Chassis MCU exposes register to report temperature for the peripheral board.
The MCU access is configurable as below:
        {
            "Bus": $bus,
            "Address": "0xAA",
            "Reg": "0xBB",
            "Class": "MCUTemp",
            "Name": "MCU Temp",
            "Thresholds": [
                xxx
            ]
            "Type": "MCUTempSensor"
        }

Tested:
The below interface was found under temperature sensor namespace:
          └─/xyz/openbmc_project/sensors/temperature/MCU_Temp

Run ipmitool sensor and check below from list:
MCU Temp     | 30.175      | degrees C  | cr    | na        | 0.000     | 5.000     | 110.000   | 115.000   | na

Change-Id: I8d54455ccc39ea4f60a5b4aee5c68be092d39a72
Signed-off-by: Yuan Li <yuan.li@linux.intel.com>