linux-kernel - Re: [PATCH 3/3] dt-bindings: bus: ti-sysc: Update to use yaml binding

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Date:   Mon, 11 Oct 2021 08:50:57 +0300
From:   Tony Lindgren <tony@...mide.com>
To:     Rob Herring <robh@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-omap@...r.kernel.org,
        Suman Anna <s-anna@...com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Simon Horman <horms+renesas@...ge.net.au>
Subject: Re: [PATCH 3/3] dt-bindings: bus: ti-sysc: Update to use yaml binding

Hi,

* Rob Herring <robh@...nel.org> [211008 20:39]:
> On Thu, Oct 07, 2021 at 03:48:58PM +0300, Tony Lindgren wrote:
> > +  compatible:
> > +    oneOf:
> > +      - items:
> > +        - enum:
> > +            - ti,sysc-omap2
> > +            - ti,sysc-omap2
> > +            - ti,sysc-omap4
> > +            - ti,sysc-omap4-simple
> > +            - ti,sysc-omap2-timer
> > +            - ti,sysc-omap4-timer
> > +            - ti,sysc-omap3430-sr
> > +            - ti,sysc-omap3630-sr
> > +            - ti,sysc-omap4-sr
> > +            - ti,sysc-omap3-sham
> > +            - ti,sysc-omap-aes
> > +            - ti,sysc-mcasp
> > +            - ti,sysc-dra7-mcasp
> > +            - ti,sysc-usb-host-fs
> > +            - ti,sysc-dra7-mcan
> > +            - ti,sysc-pruss
> > +        - const: ti,sysc
> > +      - items:
> > +        - const: ti,sysc
> 
> This doesn't really match what the old doc said nor the old example. 
> Fine to fix in the conversion if wrong, but just highlight that in the 
> commit msg.

OK yes we currently always need "ti,sysc" as the clockdomain autoidle
handling still relies on auxdata.

> > +
> > +  reg: true
> 
> Any number of register areas is valid?

Yes the number of registers is known, I'll update to use max three reg.

> > +
> > +  reg-names: true
> 
> You've thrown out the names defined before.

Yup these are known too.

> > +
> > +  clocks: true
> 
> Any number of clocks is valid? 

I think 8 clocks is the highest seen :)

> > +  clock-names: true
> 
> You've thrown out the names defined before.

Hmm fck and ick can be named, the rest are device specific though.

> > +
> > +  power-domains: true
> 
> How many?

Just one should be enough here.

> > +additionalProperties: true
> 
> This can be restricted to child nodes only? If so:
> 
> additionalProperties:
>   type: object

OK great, this can be limited to child nodes only.

Regards,

Tony