linux-kernel - Re: [PATCH v3 2/6] mfd: dt: ranges, #address-cells and #size-cells as optional properties

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Message-ID: <1481324115.3112.8.camel@aj.id.au>
Date:   Sat, 10 Dec 2016 09:25:15 +1030
From:   Andrew Jeffery <andrew@...id.au>
To:     Rob Herring <robh@...nel.org>
Cc:     Lee Jones <lee.jones@...aro.org>,
        Mark Rutland <mark.rutland@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Corey Minyard <minyard@....org>,
        Cédric Le Goater <clg@...d.org>,
        Joel Stanley <joel@....id.au>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/6] mfd: dt: ranges, #address-cells and #size-cells
 as optional properties

On Fri, 2016-12-09 at 16:49 -0600, Rob Herring wrote:
> On Tue, Dec 06, 2016 at 01:53:17PM +1100, Andrew Jeffery wrote:
> > Whilst describing a device and not a bus, simple-mfd is modelled on
> > simple-bus where child nodes are iterated and registered as platform
> > devices. Some complex devices, e.g. the Aspeed LPC controller, can
> > benefit from address space mapping such that child nodes can use the
> > regs property to describe their resources within the multi-function
> > device.
> > 
> > > > Signed-off-by: Andrew Jeffery <andrew@...id.au>
> > ---
> >  Documentation/devicetree/bindings/mfd/mfd.txt | 10 ++++++++++
> >  1 file changed, 10 insertions(+)
> 
> No objections to this, but this is all implied by having a reg property.

Thanks for clarifying. I wasn't sure so I wrote the patch with the
thought that we could drop it if it wasn't necessary. Regardless, I
think being explicit about the properties is nice.

> 
> Acked-by: Rob Herring <robh@...nel.org>

Thanks,

Andrew

> 
> Rob
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