Re: [PATCH v2] regmap: irq: allow different device for irq chip and regmap

From	Mark Brown <broonie@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2] regmap: irq: allow different device for irq chip and regmap
Date	2017-07-04 12:50 +0200
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On Fri, Jun 30, 2017 at 03:33:27PM +0200, Michael Grzeschik wrote:
> On Fri, Jun 23, 2017 at 01:00:43PM +0100, Mark Brown wrote:

> > syscon is one potential thing here but it seems odd for the sort of
> > hardware that syscon handles to be a good fit for regmap-irq.

> We have the special case that we use the syscon as the basic driver
> underneath some subdevices that vary in function. We have six arcnet
> controllers sitting side by side in an 8 byte offset. And after them we
> have the next small memory windows for an reset controller and one
> interrupt controller which the other devices reference.

Why is this a syscon and not a MFD?  It sounds exactly like a MFD to me,
syscon is more for cases where things are really jumbled together (even
in single registers) but that sounds like a bunch of separate register
ranges for separate devices that happen to be very close together in
address.

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Re: [PATCH v2] regmap: irq: allow different device for irq chip and  regmap Mark Brown <broonie@kernel.org> - 2017-07-04 12:50 +0200
  Re: [PATCH v2] regmap: irq: allow different device for irq chip and  regmap Michael Grzeschik <mgr@pengutronix.de> - 2017-07-05 11:10 +0200

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