[RFC/NOT FOR MERGING 2/3] serial: omap: remove hwmod dependency

Peter Korsgaard jacmet at sunsite.dk
Thu Feb 21 07:09:43 EST 2013


>>>>> "Peter" == Peter De Schrijver <pdeschrijver at nvidia.com> writes:

 >> 
 >> Also, IMHO reset should always be done during probe() so driver can be
 >> dead sure that we're starting from a known state. This is even more

 Peter> Depends on the IP block. Eg: you might want to keep the screen
 Peter> showing the contents drawn by the bootloader while booting the
 Peter> kernel and smoothly change to a new image when userspace comes
 Peter> online. In that case you probably don't want to blindly reset
 Peter> the display controller for example.

Indeed. Another recent example was gpio pins (controlling stuff like
reset signals) where the bootloader had already set things up correctly
and the reset caused pins to toggle.

-- 
Bye, Peter Korsgaard



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