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

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Date:   Fri, 5 May 2023 10:37:41 +0800
From:   "xianwei.zhao" <xianwei.zhao@...ogic.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        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

Hi Krzysztof,
      Thank you for your reply.

On 2023/5/1 17:58, Krzysztof Kozlowski wrote:
> [你通常不会收到来自 krzysztof.kozlowski@...aro.org 的电子邮件。请访问 https://aka.ms/LearnAboutSenderIdentification，以了解这一点为什么很重要]
> 
> [ EXTERNAL EMAIL ]
> 
> 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'.
Will do.
> 
>> 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.
> 
The bindings committed by Neil, it is applied to 
https://git.kernel.org/pub/scm/linux/kernel/git/amlogic/linux.git 
(v6.5/arm64-dt),
bindings: 
https://lore.kernel.org/all/20230407102704.1055152-1-kelvin.zhang@amlogic.com/
> Best regards,
> Krzysztof
>