linux-kernel - Re: [RFC PATCH] ARM: s3c: mark as deprecated and schedule removal after 2022

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Message-ID: <52054093-bd8d-ee79-6f32-9ada9b3deb24@canonical.com>
Date:   Tue, 2 Nov 2021 12:09:53 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, Olof Johansson <olof@...om.net>,
        Kukjin Kim <kgene@...nel.org>
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Sylwester Nawrocki <snawrocki@...nel.org>,
        Tomasz Figa <tomasz.figa@...il.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Inki Dae <inki.dae@...sung.com>, Cedric Roux <sed@...e.fr>,
        Sam Van Den Berge <sam.van.den.berge@...enet.be>,
        Lihua Yao <ylhuajnu@...look.com>,
        Heiko Stuebner <heiko@...ech.de>
Subject: Re: [RFC PATCH] ARM: s3c: mark as deprecated and schedule removal
 after 2022

On 02/11/2021 12:05, Krzysztof Kozlowski wrote:
> The Samsung S3C24xx and S3C64xx platforms are very old designs. S3C2416
> was introduced in 2008 and S3C6410 in 2009/2010.  They are not widely
> available anymore - out-of-stock on FriendlyArm (one of manufacturers of
> boards) and only few specialist stores still offer them for quite a high
> price.
> 
> The community around these platforms was not very active, so I suspect
> no one really uses them anymore. Maintenance takes precious time so
> there is little sense in keeping them alive if there are no real users.
> 
> Let's mark all S3C24xx and S3C64xx platforms as deprecated and mention
> possible removal in one year (after 2022).  The deprecation message will
> be as text in Kconfig, build message (not a warning though) and runtime
> print error.
> 
> If there are any users, they might respond and postpone the removal.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> ---
>  arch/arm/Kconfig                  | 7 ++++++-
>  arch/arm/mach-s3c/Kconfig.s3c64xx | 7 ++++++-
>  arch/arm/mach-s3c/cpu.c           | 1 +
>  arch/arm/mach-s3c/init.c          | 2 ++
>  arch/arm/mach-s3c/s3c24xx.c       | 5 +++++
>  arch/arm/mach-s3c/s3c64xx.c       | 5 +++++
>  6 files changed, 25 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index f0f9e8bec83a..bd8237c7e7f1 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -473,7 +473,7 @@ config ARCH_SA1100
>  	  Support for StrongARM 11x0 based boards.
>  
>  config ARCH_S3C24XX
> -	bool "Samsung S3C24XX SoCs"
> +	bool "Samsung S3C24XX SoCs (deprecated, see help)"
>  	select ATAGS
>  	select CLKSRC_SAMSUNG_PWM
>  	select GPIO_SAMSUNG
> @@ -491,6 +491,11 @@ config ARCH_S3C24XX
>  	  (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the
>  	  Samsung SMDK2410 development board (and derivatives).
>  
> +	  The platform is deprecated and scheduled in removal. Please reach to

Language typo - "for removal". I'll fix it in v2, if the idea looks
reasonable.

Best regards,
Krzysztof