linux-kernel - Re: linux-next: build warning after merge of the arm-soc tree

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Date:   Thu, 22 Jun 2023 10:26:55 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Arnd Bergmann <arnd@...db.de>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Olof Johansson <olof@...om.net>,
        ARM <linux-arm-kernel@...ts.infradead.org>
Cc:     Rob Herring <robh@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-next <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warning after merge of the arm-soc tree

On 22/06/2023 10:19, Arnd Bergmann wrote:
> On Thu, Jun 22, 2023, at 02:48, Stephen Rothwell wrote:
>> Hi all,
>>
>> After merging the arm-soc tree, today's linux-next build (arm
>> multi_v7_defconfig) produced this warning:
>>
>> arch/arm/boot/dts/marvell/armada-390-db.dts:84.10-106.4: Warning 
>> (spi_bus_reg): /soc/spi@...80/flash@1: SPI bus unit address format 
>> error, expected "0"
>>
>> I am not sure why this has only shown up now.
> 
> Thanks for the report, I also just ran into the same thing.
> It's probably instroduced by 89e73afc3f540 ("ARM: dts: marvell:
> align SPI NOR node name with dtschema"), but I don't know why
> there was no warning before.
> 
> Added the fixup patch now.

The unit/reg mismatch was there before my commit. Maybe something
changed in default flags for dtc compiler, thus the warning appeared?

> 
>     Arnd
> 
> ---
> commit 7dc3be1745d05c1ed7d385487238ec06a07f4f29
> Author: Arnd Bergmann <arnd@...db.de>
> Date:   Thu Jun 22 10:14:02 2023 +0200
> 
>     ARM: mvebu: fix unit address on armada-390-db flash
>     
>     The unit address needs to be changed to match the reg property:
>     
>     arch/arm/boot/dts/marvell/armada-390-db.dts:84.10-106.4: Warning (spi_bus_reg): /soc/spi@...80/flash@1: SPI bus unit address format error, expected "0"
>     
>     Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
>     Signed-off-by: Arnd Bergmann <arnd@...db.de>
> 


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof