On Thu, Nov 06, 2014 at 12:02:49AM +0400, Dmitry Eremin-Solenikov wrote: > 2014-11-03 16:41 GMT+03:00 Linus Walleij <linus.walleij@xxxxxxxxxx>: > > The point is still the same: no unrelated code in drivers/mfd, > > then either use IIO DAC as a middle layer or sink the DAC handling > > into respective subdriver, i.e. push it into the backlight or > > volume directly then. > The problem is that the DAC is equally used by backlight and by sound > device (WIP). > What about true i2c device driver sitting in drivers/misc and exporting a regmap > of 2 8-bit registers? If it can just export registers that sounds like a MFD. If it needs to export functionality then like Linus says the IIO subsystem abstracts DACs.
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