linux-kernel - Re: [PATCH] drivers/of: Export phandle iterators

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Message-ID: <18302005-166c-37b9-6e6d-35804ff685ff@arm.com>
Date:   Thu, 24 Nov 2016 12:33:30 +0000
From:   Robin Murphy <robin.murphy@....com>
To:     Rob Herring <robh+dt@...nel.org>
Cc:     "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Frank Rowand <frowand.list@...il.com>
Subject: Re: [PATCH] drivers/of: Export phandle iterators

Hi Rob,

On 23/11/16 21:49, Rob Herring wrote:
> On Wed, Nov 23, 2016 at 1:06 PM, Robin Murphy <robin.murphy@....com> wrote:
>> Modular drivers may want to use of_for_each_phandle() - export its
>> constituent functions.
> 
> Do you have a user?

I've been experimenting with modular IOMMU drivers on top of the
probe-deferral stuff[1], and the ARM SMMU driver in particular demands a
whole pile of exports. I thought I'd throw this one out now since nearly
all the other of_* functions are exported already, but I'm quite happy
to sit on it if you'd prefer to wait for a concrete in-tree need (it'll
be a while yet).

Robin.

[1]:http://www.linux-arm.org/git?p=linux-rm.git;a=shortlog;h=refs/heads/iommu/defer