linux-kernel - Re: [PATCH] nvmem: meson: use generic compatible

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Message-ID: <1507923553.30658.10.camel@baylibre.com>
Date:   Fri, 13 Oct 2017 21:39:13 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Carlo Caione <carlo@...one.org>, devicetree@...r.kernel.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] nvmem: meson: use generic compatible

On Fri, 2017-10-13 at 21:14 +0200, Martin Blumenstingl wrote:
> Hi Jerome,
> 
> On Thu, Oct 12, 2017 at 5:24 PM, Jerome Brunet <jbrunet@...libre.com> wrote:
> > The meson efuse driver seems to be compatible with more SoCs than
> > initially thought. Let's use the most generic compatible he have in
> > DT instead of the gxbb specific one
> > 
> > Signed-off-by: Jerome Brunet <jbrunet@...libre.com>
> > ---
> >  Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt | 4 ++--
> >  drivers/nvmem/meson-efuse.c                               | 2 +-
> >  2 files changed, 3 insertions(+), 3 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt
> > b/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt
> > index fafd85bd67a6..0260524292fe 100644
> > --- a/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt
> > +++ b/Documentation/devicetree/bindings/nvmem/amlogic-efuse.txt
> > @@ -1,7 +1,7 @@
> >  = Amlogic eFuse device tree bindings =
> > 
> >  Required properties:
> > -- compatible: should be "amlogic,meson-gxbb-efuse"
> > +- compatible: should be "amlogic,meson-gx-efuse"
> 
> have you checked with the devicetree maintainers how they want the
> documentation to look like in this case?

You mean "Should we put every compatible existing (in DT) in the documentation"
>From what I've seen, at least in meson drivers, only the matched ones are
listed.

That's a good question though.
We tend to put soc specific compatible "in case"  we need them later on. Should
we document those ?

> (I don't know if the old one should be kept instead of removing it)
> 
> > 
> >  = Data cells =
> >  Are child nodes of eFuse, bindings of which as described in
> > @@ -10,7 +10,7 @@ bindings/nvmem/nvmem.txt
> >  Example:
> > 
> >         efuse: efuse {
> > -               compatible = "amlogic,meson-gxbb-efuse";
> > +               compatible = "amlogic,meson-gx-efuse";
> >                 #address-cells = <1>;
> >                 #size-cells = <1>;
> > 
> > diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c
> > index 70bfc9839bb2..e90c6d68a263 100644
> > --- a/drivers/nvmem/meson-efuse.c
> > +++ b/drivers/nvmem/meson-efuse.c
> > @@ -44,7 +44,7 @@ static struct nvmem_config econfig = {
> >  };
> > 
> >  static const struct of_device_id meson_efuse_match[] = {
> > -       { .compatible = "amlogic,meson-gxbb-efuse", },
> > +       { .compatible = "amlogic,meson-gx-efuse", },
> >         { /* sentinel */ },
> >  };
> >  MODULE_DEVICE_TABLE(of, meson_efuse_match);
> > --
> > 2.13.6
> > 
> > 
> > _______________________________________________
> > linux-amlogic mailing list
> > linux-amlogic@...ts.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-amlogic

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