[U-Boot] hwmon init

[Detlev Zundel]

Hello Heiko,

> Is there a reason why the dtt sensors are initialized and accessed on
> u-boot startup?

Historical reasons?

> The U-Boot Design Principles[1] clearly say:
>
>   Initialize devices only when they are needed within U-Boot, i.e. don't
>   initialize the Ethernet interface(s) unless U-Boot performs a download
>   over Ethernet; don't initialize any IDE or USB devices unless U-Boot
>   actually tries to load files from these, etc. (and don't forget to
>   shut down these devices after using them - otherwise nasty things may
>   happen when you try to boot your OS).
>
>
> Should that be changed?

Yes indeed, the current situation is not consistent with the design
principles and thus should be changed.  Patches welcome!

Best wishes
  Detlev

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