linux-kernel - Re: [EXTERNAL][PATCH v15 04/13] mfd/syscon: Add device_node_to

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Date:   Thu, 8 Aug 2019 12:04:18 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Paul Burton <paul.burton@...s.com>
Cc:     Paul Cercueil <paul@...pouillou.net>,
        Lee Jones <lee.jones@...aro.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        James Hogan <jhogan@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-mips@...r.kernel.org" <linux-mips@...r.kernel.org>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>,
        "od@...c.me" <od@...c.me>, Mathieu Malaterre <malat@...ian.org>
Subject: Re: [EXTERNAL][PATCH v15 04/13] mfd/syscon: Add device_node_to_regmap()

On Mon, Jul 29, 2019 at 6:55 PM Paul Burton <paul.burton@...s.com> wrote:
>
> Lee, Arnd,
>
> On Wed, Jul 24, 2019 at 01:16:06PM -0400, Paul Cercueil wrote:
> > device_node_to_regmap() is exactly like syscon_node_to_regmap(), but it
> > does not check that the node is compatible with "syscon", and won't
> > attach the first clock it finds to the regmap.
> >
> > The rationale behind this, is that one device node with a standard
> > compatible string "foo,bar" can be covered by multiple drivers sharing a
> > regmap, or by a single driver doing all the job without a regmap, but
> > these are implementation details which shouldn't reflect on the
> > devicetree.
>
> Does this looks like a good path forwards to you? Its use in this case
> is described by Documentation/devicetree/bindings/timer/ingenic,tcu.txt
> in patch 3 of the series.
>
> If you're OK with it an ack would be appreciated so I can take the
> series through mips-next, otherwise I guess we'd need to go back to the
> v14 approach.

Yes, I guess this is ok, sorry for missing the submission earlier.

Acked-by: Arnd Bergmann <arnd@...db.de>