Re: [Qualcomm PM8921 MFD v2 4/6] mfd: pm8xxx-mpp: Add pm8xxx MPPdriver

From: Mark Brown
Date: Thu Mar 10 2011 - 10:14:31 EST


On Wed, Mar 09, 2011 at 07:36:16PM -0800, Abhijeet Dharmapurikar wrote:
> Mark Brown wrote:

>> It's seems really odd that you're adding gpiolib stuff here when you've
>> also got a separate gpiolib driver. Possibly this all shouldn't
>> actually be split up as much as it is - there's also the issue with the
>> gpiolib driver needing to peer into the interrupt controller. It might
>> simplify the code if things were merged more.

> I dont think merging code will help here. gpio lines and mpp lines are
> very different piece of hardware,they have a different register map and
> different config attributes. They do fall under the generic 'gpiolib'
> umbrella, but it seems clean to keep them separate.

Oh, so the MFPs are completely separate pins to the GPIOs controlled by
the GPIO driver? That's unusual - might be worth clarifying that
somehow.
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