linux-kernel - Re: [PATCH 1/1] dt-bindings: interrupt-controller: fsl, irqsteer: Add power-domains

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Message-ID: <13433324.uLZWGnKmhe@steina-w>
Date: Wed, 17 Jan 2024 08:31:26 +0100
From: Alexander Stein <alexander.stein@...tq-group.com>
To: Conor Dooley <conor@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, Lucas Stach <l.stach@...gutronix.de>, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] dt-bindings: interrupt-controller: fsl, irqsteer: Add power-domains

Hi Conor,

Am Donnerstag, 11. Januar 2024, 17:49:03 CET schrieb Conor Dooley:
> On Thu, Jan 11, 2024 at 09:59:54AM +0100, Alexander Stein wrote:
> > Hi Conor,
> > 
> > Am Mittwoch, 10. Januar 2024, 17:09:07 CET schrieb Conor Dooley:
> > > On Wed, Jan 10, 2024 at 10:43:38AM +0100, Alexander Stein wrote:
> > > > Some SoC like i.MX8QXP use a power-domain for this IP add it to the
> > > > supported proerties. Fixes the dtbs_check warning:
> > > > freescale/imx8qxp-tqma8xqp-mba8xx.dtb: irqsteer@...00000:
> > > > 'power-domains'
> > > > 
> > > >  does not match any of the regexes: 'pinctrl-[0-9]+'
> > > > 
> > > > from schema $id:
> > > > http://devicetree.org/schemas/interrupt-controller/fsl,irqsteer.yaml#
> > > > 
> > > > Signed-off-by: Alexander Stein <alexander.stein@...tq-group.com>
> > > > ---
> > > > 
> > > > Notes:
> > > >     Please note that both the board dts and the DT node for irqsteer
> > > >     being
> > > >     used, are still work-in-progress.
> > > 
> > > The binding doesn't even support the imx8qxp's irqsteer yet, I think
> > > this should be added alongside support for that SoC. Am I missing
> > > something?
> > 
> > I'm not sure if any additional SoC support is actually needed. 'fsl,imx-
> > irqsteer' is available and that's what I use in my WiP. Also imx8mp also
> > just uses the generic compatible. Only imx8mq uses 'fsl,imx8m-irqsteer'.
> Why doesn't it used "imx8mq-irqsteer"? Should it not have its own
> soc-specific compatible?

I would assume that "fsl,imx8m-irqsteer" is for the whole i.MX8M family. I 
don't think a soc-specific compatible is needed at all. On top I can't see any 
difference between i.MX8M and i.MX8/i.MX8X.
If a soc-specific compatible is preferred, fine by me. But I don't expect any 
difference despite imx8qxp/imx8qm requiring a power-domain.

Best regards,
Alexander

> Cheers,
> Conor.
> 
> > AFAICS the bindings support the different amount of IRQs already.
> > 
> > Best regards,
> > Alexander
> > 
> > > >  .../devicetree/bindings/interrupt-controller/fsl,irqsteer.yaml | 3
> > > >  +++
> > > >  1 file changed, 3 insertions(+)
> > > > 
> > > > diff --git
> > > > a/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.
> > > > yam
> > > > l
> > > > b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.
> > > > yam
> > > > l index 20ad4ad82ad64..cb4fcd23627f6 100644
> > > > ---
> > > > a/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.
> > > > yam
> > > > l +++
> > > > b/Documentation/devicetree/bindings/interrupt-controller/fsl,irqsteer.
> > > > yam
> > > > l>
> > > > 
> > > > @@ -42,6 +42,9 @@ properties:
> > > >    clock-names:
> > > >      const: ipg
> > > > 
> > > > +  power-domains:
> > > > +    maxItems: 1
> > > > +
> > > > 
> > > >    interrupt-controller: true
> > > >    
> > > >    "#interrupt-cells":


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