Re: [PATCH 2.6.29-rc1-git4] mfd: da9030 usb charge pump support within mfd driver.

[Eric Miao <eric.y.miao@gmail.com>]

On Thu, Jan 15, 2009 at 2:34 PM, Mike Rapoport <mike@compulab.co.il> wrote:
>
>
> Eric Miao wrote:
>> On Thu, Jan 15, 2009 at 2:16 AM, Jonathan Cameron <jic23@cam.ac.uk> wrote:
>>> From: Jonathan Cameron <jic23@cam.ac.uk>
>>>
>>> Add support for changing the mode of the da9030 usb charge pump
>>>
>>
>> Well, if it is totally USB charger related, I'd suggest to move this into
>> the dedicated driver. This mfd/da903x.c serves as a common code
>> base for all sub-peripherals.
>
> It's not exactly related to the charger, it's rather related to the USB voltage
> supplied to USB devices attached to PXA OHCI.
> Indeed the mfd/da903x.c serves as a common core for sub-peripherals, but IMHO
> adding a subdevice driver because of single method doesn't worth the overhead.
> I'm for the solution Jonathan proposes.
>

Mmm... then who will be the invoker? I'm a bit upset about this
being exported while called out of control. If it works as the
name suggested, setting some mode, maybe we can have a
platform data field specifying this, and hide this totally within
the driver. I didn't look into this too much, just a concern here.