linux-kernel - Re: [PATCH V2] arm64: dts: add support for C3 based Amlogic AW409

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Date:   Mon, 1 May 2023 11:58:59 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Xianwei Zhao <xianwei.zhao@...ogic.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-amlogic@...ts.infradead.org, devicetree@...r.kernel.org
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Subject: Re: [PATCH V2] arm64: dts: add support for C3 based Amlogic AW409

On 27/04/2023 10:58, Xianwei Zhao wrote:
> Amlogic C3 is an advanced edge AI processor designed for smart IP camera
> applications.
> 
> Add basic support for the C3 based Amlogic AW409 board, which describes
> the following components: CPU, GIC, IRQ, Timer, UART. It's capable of
> booting up into the serial console.
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
> 
> ---
> V1 -> V2: Remove new arch, and use ARCH_MESON;
>           Modify node name, and delete superfluous blank lines.
> ---
>  arch/arm64/boot/dts/amlogic/Makefile          |  1 +
>  .../amlogic/amlogic-c3-c302x-aw409-256m.dts   | 29 +++++++
>  arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi   | 86 +++++++++++++++++++
>  3 files changed, 116 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409-256m.dts
>  create mode 100644 arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
> 
> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
> index cd1c5b04890a..bcec872c2444 100644
> --- a/arch/arm64/boot/dts/amlogic/Makefile
> +++ b/arch/arm64/boot/dts/amlogic/Makefile
> @@ -74,3 +74,4 @@ dtb-$(CONFIG_ARCH_MESON) += meson-sm1-odroid-hc4.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-sm1-x96-air-gbit.dtb
>  dtb-$(CONFIG_ARCH_MESON) += meson-sm1-x96-air.dtb
> +dtb-$(CONFIG_ARCH_MESON) += amlogic-c3-c302x-aw409-256m.dtb

Looks wrongly ordered. 'a' is before 'm'.

> diff --git a/arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409-256m.dts b/arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409-256m.dts
> new file mode 100644
> index 000000000000..edce8850b338
> --- /dev/null
> +++ b/arch/arm64/boot/dts/amlogic/amlogic-c3-c302x-aw409-256m.dts
> @@ -0,0 +1,29 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * Copyright (c) 2021 Amlogic, Inc. All rights reserved.
> + */
> +
> +/dts-v1/;
> +
> +#include "amlogic-c3.dtsi"
> +
> +/ {
> +	model = "Amlogic C302 aw409 Development Board";
> +	compatible = "amlogic,aw409", "amlogic,c3";

Missing bindings.

Please run scripts/checkpatch.pl and fix reported warnings.

Best regards,
Krzysztof