Re: [PATCH 1/8] sta2x11-mfd : add apb-soc regs driver and factor outcommon code

[Mark Brown]

On Thu, Sep 27, 2012 at 03:41:10PM +0200, Davide Ciminaghi wrote:

> Maybe there's another solution: what about adding a couple of function
> pointers (lock, unlock) to struct regmap_config ? If they're set to NULL,
> everything works as usual. If they're not NULL, regmap uses such functions
> to do locking and unlocking instead of the usual ones (and regmap_bus.fast_io
> is ignored). I think this wouldn't hurt existing regmap users and allow
> sta2x11-mfd to have just one spinlock for everything, no need for nested
> locking this way.

That might work, yes, and would be generally useful I think.  Or we
could add regmap based versions of the clock utilities (which would also
be useful anyway).  Or both.
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