Messages in this thread | | | Date | Tue, 9 Apr 2013 13:45:44 +0200 | From | Wim Van Sebroeck <> | Subject | Re: mfd: Core driver for Winbond chips |
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Hi Guenter,
> I was waiting for feedback from Wim, who submitted a similar driver, about his > thoughts. Key question is how to reserve access to the shared resource - either > through an exported function in the mfd driver requesting a mutex, or through > request_muxed_region(). I am going back and forth myself on which one is better. > > Maybe it does not really matter, but using a function has the slight advantage > that it auto-loads and locks the mfd module while one of its client modules > is loaded. If we use request_muxed_region, that is not the case and the client > module must use another means to request and lock the mfd module. > > Maybe you have an opinion ?
This is indeed the main issue that has to be solved. Both options will work. I like the auto-load and lock, but I need to look at the request_muxed_region code again first before I can see what the possible drawbacks are :-).
Kind regards, Wim.
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