linux-kernel - Re: [PATCH v2 02/66] dt-bindings: interconnect: sunxi: Add V3s mbus compatible

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Date:   Mon, 7 Feb 2022 09:43:43 +0100
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     Samuel Holland <samuel@...lland.org>
Cc:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-staging@...ts.linux.dev,
        Yong Deng <yong.deng@...ewell.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <mripard@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Hans Verkuil <hans.verkuil@...co.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Helen Koike <helen.koike@...labora.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH v2 02/66] dt-bindings: interconnect: sunxi: Add V3s mbus
 compatible

Hi,

On Sat 05 Feb 22, 14:14, Samuel Holland wrote:
> On 2/5/22 12:53 PM, Paul Kocialkowski wrote:
> > Since the V3s uses the internal mbus, document its compatible.
> > 
> > Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> > ---
> >  .../devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml  | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
> > index 29c9961ee2d8..b67bf9261a6a 100644
> > --- a/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
> > +++ b/Documentation/devicetree/bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml
> > @@ -31,6 +31,7 @@ properties:
> >        - allwinner,sun5i-a13-mbus
> >        - allwinner,sun8i-h3-mbus
> >        - allwinner,sun8i-r40-mbus
> > +      - allwinner,sun8i-v3s-mbus
> 
> Please enable the expanded binding added in commit 245578ba9f03 ("dt-bindings:
> arm: sunxi: Expand MBUS binding")[1] by adding the new compatible to the "if"
> block lower in the file. That way we can add V3S devfreq support in the future
> without changing that binding.

I had missed that new driver but surely I will expand the updated binding.

By the way do you have an explanation about the cell index given to the
interconnects (after &mbus)?

Paul

> Regards,
> Samuel
> 
> [1]: https://git.kernel.org/torvalds/c/245578ba9f03
> 
> >        - allwinner,sun50i-a64-mbus
> >  
> >    reg:
> > 
> 

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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