linux-kernel - Re: [PATCH] arm64: dts: synaptics: add DT for AS370-RDK

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Date:   Fri, 20 Aug 2021 18:27:08 +0800
From:   Jisheng Zhang <Jisheng.Zhang@...aptics.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Arnd Bergmann <arnd@...db.de>, soc@...nel.org,
        Rob Herring <robh@...nel.org>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: synaptics: add DT for AS370-RDK

On Fri, 20 Aug 2021 11:59:30 +0200
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com> wrote:

> CAUTION: Email originated externally, do not click links or open attachments unless you recognize the sender and know the content is safe.
> 
> 
> On 20/08/2021 11:31, Jisheng Zhang wrote:
> > Add a basic support for AS370-RDK board based on the AS370 SoC. We can
> > get a basic shell on the uart console now.
> >
> > Signed-off-by: Jisheng Zhang <Jisheng.Zhang@...aptics.com>
> > ---
> > Hi Arnd,
> >
> > If it's too late, I will add it in a PR for 5.16 in next development window.
> >
> > Thanks
> >
> >  arch/arm64/boot/dts/synaptics/Makefile      |  1 +
> >  arch/arm64/boot/dts/synaptics/as370-rdk.dts | 29 +++++++++++++++++++++
> >  2 files changed, 30 insertions(+)
> >  create mode 100644 arch/arm64/boot/dts/synaptics/as370-rdk.dts
> >
> > diff --git a/arch/arm64/boot/dts/synaptics/Makefile b/arch/arm64/boot/dts/synaptics/Makefile
> > index de71ddda6835..c1c4f6c040b3 100644
> > --- a/arch/arm64/boot/dts/synaptics/Makefile
> > +++ b/arch/arm64/boot/dts/synaptics/Makefile
> > @@ -1,4 +1,5 @@
> >  # SPDX-License-Identifier: GPL-2.0
> >  # Berlin SoC Family
> > +dtb-$(CONFIG_ARCH_BERLIN) += as370-rdk.dtb
> >  dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-dmp.dtb
> >  dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-stb.dtb
> > diff --git a/arch/arm64/boot/dts/synaptics/as370-rdk.dts b/arch/arm64/boot/dts/synaptics/as370-rdk.dts
> > new file mode 100644
> > index 000000000000..6f5c37c98be6
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/synaptics/as370-rdk.dts
> > @@ -0,0 +1,29 @@
> > +// SPDX-License-Identifier: (GPL-2.0 OR MIT)
> > +/*
> > + * Copyright (C) 2018-2021 Synaptics Incorporated
> > + *
> > + * Author: Jisheng Zhang <jszhang@...nel.org>
> > + */
> > +
> > +/dts-v1/;
> > +
> > +#include "as370.dtsi"
> > +
> > +/ {
> > +     model = "Synaptics AS370 RDK";
> > +     compatible = "syna,as370-rdk", "syna,as370";  
> 
> There is no such binding. You need to update the bindings file (first
> patch in the series).

This is my plan ;) In fact, "berlin4ct" related binding is also missing.
I want to convert Documentation/devicetree/bindings/arm/syna.txt
to yaml, then add missing bindings. But it's too late for 5.15,

If it's fine to keep as370.dtsi without board user(s), we can drop
this patch. I will solve this issue in next development window.

Thanks

> 
> 
> Best regards,
> Krzysztof