linux-kernel - Re: [PATCH] remoteproc: st: Use of_property_present() for testing DT property presence

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Message-ID: <CANLsYkyUorJZyfiKA+ZpF0aPSxx7nU4f3B2f+S5Y93GnZshG9A@mail.gmail.com>
Date:   Tue, 18 Apr 2023 14:27:32 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Patrice Chotard <patrice.chotard@...s.st.com>,
        Bjorn Andersson <andersson@...nel.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] remoteproc: st: Use of_property_present() for testing DT
 property presence

On Tue, 18 Apr 2023 at 10:26, Rob Herring <robh@...nel.org> wrote:
>
> On Fri, Mar 10, 2023 at 08:47:35AM -0600, Rob Herring wrote:
> > It is preferred to use typed property access functions (i.e.
> > of_property_read_<type> functions) rather than low-level
> > of_get_property/of_find_property functions for reading properties. As
> > part of this, convert of_get_property/of_find_property calls to the
> > recently added of_property_present() helper when we just want to test
> > for presence of a property and nothing more.
> >
> > Signed-off-by: Rob Herring <robh@...nel.org>
> > ---
> >  drivers/remoteproc/st_remoteproc.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Ping!

I did provide an RB for this patch on the same day you sent it,
thinking it was part of a larger refactoring effort.  But taking
another look now I see that it is not the case and will apply it right
away.

>
> >
> > diff --git a/drivers/remoteproc/st_remoteproc.c b/drivers/remoteproc/st_remoteproc.c
> > index a3268d95a50e..50ef40671652 100644
> > --- a/drivers/remoteproc/st_remoteproc.c
> > +++ b/drivers/remoteproc/st_remoteproc.c
> > @@ -379,7 +379,7 @@ static int st_rproc_probe(struct platform_device *pdev)
> >               clk_set_rate(ddata->clk, ddata->clk_rate);
> >       }
> >
> > -     if (of_get_property(np, "mbox-names", NULL)) {
> > +     if (of_property_present(np, "mbox-names")) {
> >               ddata->mbox_client_vq0.dev              = dev;
> >               ddata->mbox_client_vq0.tx_done          = NULL;
> >               ddata->mbox_client_vq0.tx_block = false;
> > --
> > 2.39.2
> >
> >
> > _______________________________________________
> > linux-arm-kernel mailing list
> > linux-arm-kernel@...ts.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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