linux-kernel - Re: [PATCH v2 3/8] dt-bindings: PCI: renesas-pci-usb: Allow multiple clocks

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Date:   Wed, 20 Apr 2022 16:55:26 +0200
From:   Herve Codina <herve.codina@...tlin.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Krzysztof Wilczyński 
        <kw@...ux.com>, linux-pci <linux-pci@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Sergey Shtylyov <s.shtylyov@....ru>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Clement Leger <clement.leger@...tlin.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>
Subject: Re: [PATCH v2 3/8] dt-bindings: PCI: renesas-pci-usb: Allow
 multiple clocks

Hi Rob, Geert,

On Wed, 20 Apr 2022 08:24:59 -0500
Rob Herring <robh@...nel.org> wrote:

...
> > Is there a way to have the clocks description depending on the compatible value.
> > I mean something like:
> > --- 8< ---
> > properties:
> >   clocks:
> >     maxItems: 1  
> 
> This would need to cover both cases:
> 
> minItems: 1
> maxItems: 3
> 
> > 
> > if:
> >   properties:
> >     compatible:
> >       contains:
> >         enum:
> >           - renesas,pci-r9a06g032
> >           - renesas,pci-rzn1
> > 
> > then:
> >   properties:
> >     clocks:
> >       items:
> >         - description: Internal bus clock (AHB) for HOST
> >         - description: Internal bus clock (AHB) Power Management
> >         - description: PCI clock for USB subsystem
> >       minItems: 3
> >       maxItems: 3  
> 
> Don't need minItems or maxItems here. 3 is the default size based on 
> 'items' length.
> 
> > 
> > else:
> >   properties:
> >     items:  
> 
> I think you meant for this to be under 'clocks'.
> 
> >        - description: Device clock
> >     clocks:
> >       minItems: 1
> >       maxItems: 1  
> 
> Just 'maxItems' is enough.
> 
> > --- 8< ---
> > 

Thanks to your details and Geert's binding examples,

I have the clocks description and clock-names set depending
on compatible value.

This will be present in v3 series.

Regards,
Hervé

-- 
Hervé Codina, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com