linux-kernel - Re: [PATCH v1 3/3] arch/arm: dts: introduce meson-a1 device tree

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Message-ID: <d5d9a1fe-2f66-66e3-d88a-76a12f2ec55e@linaro.org>
Date:   Thu, 23 Feb 2023 10:09:25 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Alexey Romanov <avromanov@...rdevices.ru>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, neil.armstrong@...aro.org,
        khilman@...libre.com, jbrunet@...libre.com,
        martin.blumenstingl@...glemail.com, linus.walleij@...aro.org
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        kernel@...rdevices.ru
Subject: Re: [PATCH v1 3/3] arch/arm: dts: introduce meson-a1 device tree

On 23/02/2023 10:08, Krzysztof Kozlowski wrote:
> On 22/02/2023 12:50, Alexey Romanov wrote:
>> Add basic support for the 32-bit Amlogic A1. This device tree
> 
> Use subject prefixes matching the subsystem (which you can get for
> example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
> your patch is touching).
> 
>> describes following compontents: CPU, GIC, IRQ, Timer, UART,
>> PIN controller. It's capable of booting up into
>> the serial console.
>>
>> This is based on arm64 version of meson-a1.dtsi.
>>
>> Signed-off-by: Alexey Romanov <avromanov@...rdevices.ru>
>> ---
>>  arch/arm/boot/dts/meson-a1.dtsi | 151 ++++++++++++++++++++++++++++++++
> 
> There is such file and there is such DTS/hardware support. I don't see
> any reason why entire DTSI should be duplicated. What's more, your
> commit does not explain it - does not justify duplication.

One more comment - I think you just added dead code. It's
uncompilable/untestable. Otherwise, please share how to build this DTSI
without DTS.

Best regards,
Krzysztof