linux-kernel - Re: [PATCH v24 1/4] dt-bindings: reset: npcm: add clock properties

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Message-ID: <CAP6Zq1h4gMRcEsVL96OeggF9c2Eh-ZsXSQ5cTswEe_0ExeNTMQ@mail.gmail.com>
Date: Thu, 16 May 2024 12:47:22 +0300
From: Tomer Maimon <tmaimon77@...il.com>
To: Rob Herring <robh@...nel.org>
Cc: mturquette@...libre.com, sboyd@...nel.org, p.zabel@...gutronix.de, 
	krzysztof.kozlowski+dt@...aro.org, tali.perry1@...il.com, joel@....id.au, 
	venture@...gle.com, yuenn@...gle.com, benjaminfair@...gle.com, 
	openbmc@...ts.ozlabs.org, linux-clk@...r.kernel.org, 
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v24 1/4] dt-bindings: reset: npcm: add clock properties

Hi Rob,

Thanks for your comments

On Mon, 13 May 2024 at 18:51, Rob Herring <robh@...nel.org> wrote:
>
> On Thu, May 09, 2024 at 10:24:08PM +0300, Tomer Maimon wrote:
> > Adding 25MHz reference clock and clock-cell properties to NPCM reset
> > document due to the registration of the npcm8xx clock auxiliary bus device
> > in the NPCM reset driver
> >
> > The NPCM8xx clock auxiliary bus device has been registered in the NPCM
> > reset driver because the reset and the clock share the same register
> > region.
>
> auxiliary bus is a Linux concept. The reasoning for this should be the
> reset block also provides clocks.
>
>
> > Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
> > ---
> >  .../bindings/reset/nuvoton,npcm750-reset.yaml  | 18 ++++++++++++++++++
> >  1 file changed, 18 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml b/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml
> > index d82e65e37cc0..18db4de13098 100644
> > --- a/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml
> > +++ b/Documentation/devicetree/bindings/reset/nuvoton,npcm750-reset.yaml
> > @@ -21,6 +21,13 @@ properties:
> >    '#reset-cells':
> >      const: 2
> >
> > +  '#clock-cells':
> > +    const: 1
> > +
> > +  clocks:
> > +    items:
> > +      - description: specify external 25MHz referance clock.
>
> s/referance/reference/
>
> > +
> >    nuvoton,sysgcr:
> >      $ref: /schemas/types.yaml#/definitions/phandle
> >      description: a phandle to access GCR registers.
> > @@ -39,6 +46,17 @@ required:
> >    - '#reset-cells'
> >    - nuvoton,sysgcr
> >
> > +if:
> > +  properties:
> > +    compatible:
> > +      contains:
> > +        enum:
> > +          - nuvoton,npcm845-reset
> > +then:
> > +  required:
> > +    - '#clock-cells'
> > +    - clocks
>
> New required properties are an ABI break. Please justify why that's okay
> for this platform in the commit message (assuming that it is).
will be done in next version
>
> Rob

Thanks,

Tomer