From mboxrd@z Thu Jan 1 00:00:00 1970 From: soren.brinkmann@xilinx.com (=?utf-8?B?U8O2cmVu?= Brinkmann) Date: Mon, 3 Mar 2014 11:13:11 -0800 Subject: [PATCH RFC 0/3] clk: CCF clock primitives + custom IO accessors In-Reply-To: <20140303190736.GU3327@book.gsilab.sittig.org> References: <1393630495-29689-1-git-send-email-soren.brinkmann@xilinx.com> <20140302202940.GQ3327@book.gsilab.sittig.org> <19206d89-cd0d-4fea-9170-3fd0a8482bf5@VA3EHSMHS045.ehs.local> <20140303190736.GU3327@book.gsilab.sittig.org> Message-ID: <87e0d582-77a2-4645-a52a-c303b7cd8b84@VA3EHSMHS007.ehs.local> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, 2014-03-03 at 08:07PM +0100, Gerhard Sittig wrote: > On Mon, Mar 03, 2014 at 09:35 -0800, S?ren Brinkmann wrote: > > > > It would be nice if we could use the logic provided in the mux, div etc > > primitives independently of how the HW is accessed and what is > > necessary to shift and mask those register values around, right? I > > mean, at then end we want to model a clk-(div|mux) and not a > > clk-(div|mux) which has only a single, memory-mapped control register, > > that does not overlap with other things, ... > > Did you lookup the ll_ops discussion in the thread that > originated from > http://article.gmane.org/gmane.linux.ports.arm.kernel/289895 and > did you see the outlined logic in > http://article.gmane.org/gmane.linux.ports.arm.omap/109233 and > http://article.gmane.org/gmane.linux.ports.arm.omap/109381 ? > > Support for regmap access instead of mere MMIO was one of the > things you could do with this approach. You appear to be in the > situation where you need such an extension (or something similar, > but you really should look into the ll_ops thing). Thanks for those pointer, I have some reading to do. That seems to go into the right direction. What is the status of those patches? Are they already merged or actively worked on? Thanks, S?ren