linux-kernel - Re: [PATCH] dt-bindings: rtc: pcf2127: add missing pcf/pca2129 entries

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Date:   Mon, 19 Dec 2022 17:52:05 -0500
From:   Hugo Villeneuve <hugo@...ovil.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        bruno.thomsen@...il.com,
        Hugo Villeneuve <hvilleneuve@...onoff.com>,
        linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: rtc: pcf2127: add missing pcf/pca2129
 entries

On Mon, 19 Dec 2022 16:03:35 -0600
Rob Herring <robh@...nel.org> wrote:

> On Mon, Dec 19, 2022 at 02:42:40PM -0500, Hugo Villeneuve wrote:
> > From: Hugo Villeneuve <hvilleneuve@...onoff.com>
> > 
> > The pcf2127_of_match structure in drivers/rtc/rtc-pcf2127.c also
> > contains:
> >     nxp,pcf2129
> >     ncp,pca2129
> > 
> > Add these missing entries.
> > 
> > Signed-off-by: Hugo Villeneuve <hvilleneuve@...onoff.com>
> > ---
> >  Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml | 5 ++++-
> >  1 file changed, 4 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml
> > index cde7b1675ead..00dbae7e23c2 100644
> > --- a/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml
> > +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml
> > @@ -14,7 +14,10 @@ maintainers:
> >  
> >  properties:
> >    compatible:
> > -    const: nxp,pcf2127
> > +    enum:
> > +      - nxp,pcf2127
> > +      - nxp,pcf2129
> > +      - ncp,pca2129
> 
> Check Documentation/devicetree/bindings/rtc/trivial-rtc.yaml.
> 
> Maybe they aren't trivial after all and should be removed? Or 
> nxp,pcf2127 is also trivial?

Hi Rob,
the pcf2127, and also the pca/pcf2129, can use the "reset-source" property. Are they still considered "trivial" devices then?

Hugo.


> P.S. 'make dt_compatible_check' will check in the kernel for 
> undocumented (by a schema) compatibles.
> 


-- 
Hugo Villeneuve <hugo@...ovil.com>