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

From: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
To: Russell King <linux@armlinux.org.uk>,
	Arnd Bergmann <arnd@arndb.de>,
	Linus Walleij <linus.walleij@linaro.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org,
	Olof Johansson <olof@lixom.net>, Kukjin Kim <kgene@kernel.org>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>,
	Sylwester Nawrocki <snawrocki@kernel.org>,
	Tomasz Figa <tomasz.figa@gmail.com>,
	Chanwoo Choi <cw00.choi@samsung.com>,
	Inki Dae <inki.dae@samsung.com>, Cedric Roux <sed@free.fr>,
	Sam Van Den Berge <sam.van.den.berge@telenet.be>,
	Lihua Yao <ylhuajnu@outlook.com>,
	Heiko Stuebner <heiko@sntech.de>
Subject: Re: [RFC PATCH] ARM: s3c: mark as deprecated and schedule removal after 2022
Date: Tue, 2 Nov 2021 12:09:53 +0100	[thread overview]
Message-ID: <52054093-bd8d-ee79-6f32-9ada9b3deb24@canonical.com> (raw)
In-Reply-To: <20211102110519.142434-1-krzysztof.kozlowski@canonical.com>

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@canonical.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