Use of ADM1275/78 Drivers

[Mike Jones]

I have a question about how ADM1275/ADM1278 drivers are used in OBMC designs.

The driver is called out in meta-quanta/meta-olympus-nuvoton and a few other layers, and is setup for hwmon.

The driver itself has logic such that probing reads two PMBus configuration commands and then adjusts the nodes in hwmon according to what is enabled. However, I don’t see code in the driver that would allow devicetree to configure those commands, and these devices do not have EEPROM. Therefore, configuration has to happen elsewhere.

Question:

- Is there some way these devices are getting configured at boot?
- Such as private code, something I did not find in searching, etc.