linux-kernel - Re: [PATCH v2 5/5] arm64: dts: allwinner: h5: Add SID for H5

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Message-ID: <20180726115409.7hqtvx4rdqcqdjrq@flea>
Date:   Thu, 26 Jul 2018 13:54:09 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Emmanuel Vadot <manu@...ouilliste.com>
Cc:     mark.rutland@....com, devicetree@...r.kernel.org,
        catalin.marinas@....com, will.deacon@....com,
        linux-kernel@...r.kernel.org, Emmanuel Vadot <manu@...ebsd.org>,
        wens@...e.org, robh+dt@...nel.org, srinivas.kandagatla@...aro.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 5/5] arm64: dts: allwinner: h5: Add SID for H5

On Tue, Jul 24, 2018 at 04:55:01PM +0200, Emmanuel Vadot wrote:
> On Tue, 24 Jul 2018 16:42:18 +0200
> Maxime Ripard <maxime.ripard@...tlin.com> wrote:
> 
> > On Tue, Jul 24, 2018 at 03:34:32PM +0200, Emmanuel Vadot wrote:
> > > On Tue, 24 Jul 2018 15:00:04 +0200
> > > Maxime Ripard <maxime.ripard@...tlin.com> wrote:
> > > 
> > > > On Tue, Jul 24, 2018 at 12:15:22PM +0200, Emmanuel Vadot wrote:
> > > > > The SID controller on H5 look the same as the one present in the A64.
> > > > > But in case we find some difference one day at a compatible string
> > > > > of it's own and a fallback to the A64 one.
> > > > > 
> > > > > Signed-off-by: Emmanuel Vadot <manu@...ebsd.org>
> > > > > ---
> > > > >  arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi | 5 +++++
> > > > >  1 file changed, 5 insertions(+)
> > > > > 
> > > > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
> > > > > index 62d646baac3c..28183bf77164 100644
> > > > > --- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
> > > > > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
> > > > > @@ -129,3 +129,8 @@
> > > > >  		     <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
> > > > >  	compatible = "allwinner,sun50i-h5-pinctrl";
> > > > >  };
> > > > > +
> > > > > +&sid {
> > > > > +	compatible = "allwinner,sun50i-h5-sid",
> > > > > +		     "allwinner,sun50i-a64-sid";
> > > > > +};
> > > > 
> > > > This is still a bit pointless, please remove the common node.
> > > 
> > >  You mean directly declare sid controller in the SoC dtsi and not
> > > have a common node in sunxi-h3-h5.dtsi ?
> > 
> > Yep
> 
>  The reason I've put it in the common file is because I'll send patches
> for the nvmem-cells needed for thermal, and those are common between
> the two. Other nvmem-cells are also common (like the chipid and
> probably other).

Then we'll see what we can have in common and what not when we'll have
something in common?

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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