Re: [PATCH] mips: Use of_property_read_bool() for boolean properties

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On Mon, Mar 13, 2023 at 3:25 AM Philippe Mathieu-Daudé
<philmd@xxxxxxxxxx> wrote:
>
> Hi Rob,
>
> On 10/3/23 15:46, 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.
> > Convert reading boolean properties to to of_property_read_bool().
> >
> > Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
> > ---
> >   arch/mips/pci/pci-lantiq.c | 2 +-
> >   arch/mips/pci/pci-rt3883.c | 2 +-
> >   2 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c
> > index d967e4c0cf24..79e29bf42a24 100644
> > --- a/arch/mips/pci/pci-lantiq.c
> > +++ b/arch/mips/pci/pci-lantiq.c
> > @@ -118,7 +118,7 @@ static int ltq_pci_startup(struct platform_device *pdev)
> >
> >       /* and enable the clocks */
> >       clk_enable(clk_pci);
> > -     if (of_find_property(node, "lantiq,external-clock", NULL))
> > +     if (of_property_read_bool(node, "lantiq,external-clock"))
>
> Just curious, is this property correct?

Shrug. I can only tell from how it is used here and because we have
other similar properties used to select a clock.

> I can't find it and wonder if
> this is dead code (always disabling the clock)... I'm probably missing
> something obvious :/

If you don't use the external clock, then you disable it. Seems sensible to me.

>
> >               clk_enable(clk_external);
> >       else
> >               clk_disable(clk_external);
>




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