linux-kernel - Re: [PATCH v22 6/8] dt-bindings: clock: npcm845: replace reg with syscon property

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Date: Tue, 16 Jan 2024 21:37:30 +0200
From: Tomer Maimon <tmaimon77@...il.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: mturquette@...libre.com, sboyd@...nel.org, robh+dt@...nel.org, 
	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 v22 6/8] dt-bindings: clock: npcm845: replace reg with
 syscon property

Hi Krzysztof,

As explained in my [PATCH v22 4/8] dt-bindings: soc: nuvoton: add
binding for clock and reset registers mail.

In the NPCM8XX SoC, the reset and the clock register modules are
scrambled in the same memory register region.
The NPCM8XX Clock driver is still in the upstream process (for a long
time) but the NPCM8XX reset driver is already upstreamed.

On Wed, 10 Jan 2024 at 22:59, Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 08/01/2024 14:54, Tomer Maimon wrote:
> > Replace reg with syscon property since the clock registers handle the
> > reset registers as well.
> >
> > Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
> > ---
> >  .../bindings/clock/nuvoton,npcm845-clk.yaml   | 22 +++++++++----------
> >  1 file changed, 10 insertions(+), 12 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> > index 0b642bfce292..c6bf05c163b4 100644
> > --- a/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> > +++ b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> > @@ -18,8 +18,9 @@ properties:
> >      enum:
> >        - nuvoton,npcm845-clk
> >
> > -  reg:
> > -    maxItems: 1
> > +  nuvoton,sysclk:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    description: phandle to access clock registers.
>
> NAK. Not explained, not justified, not reasonable, breaking ABI.
Should I explain more in the commit message or/and the nuvoton,sysclk property?
>
> Best regards,
> Krzysztof
>

Best regards,

Tomer