linux-kernel - Re: [PATCH] MIPS: drop selected EARLY_PRINTK configs for MACH_REALTEK

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Date:   Thu, 16 Dec 2021 16:03:13 +0100
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Sander Vanheule <sander@...nheule.net>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        Bert Vermeulen <bert@...t.com>
Subject: Re: [PATCH] MIPS: drop selected EARLY_PRINTK configs for
 MACH_REALTEK_RTL

On Wed, Dec 15, 2021 at 09:06:02PM +0100, Sander Vanheule wrote:
> MACH_REALTEK_RTL declares that the system supports early printk , but
> this is not actually implemented as intended. The system is left with a
> non-functional early0 console because the setup_8250_early_printk_port()
> call provided for MIPS_GENERIC is never used to set this up. Generic
> ns16550a earlycon works, so devices should use that for early output.
> This means that SYS_HAS_EARLY_PRINTK and USE_GENERIC_EARLY_PRINTK_8250
> do not need to be selected.
> 
> Additionally, as reported by Lukas Bulwahn, the selected symbol
> SYS_HAS_EARLY_PRINTK_8250 does not actually exist, so should also be
> dropped.
> 
> Cc: Lukas Bulwahn <lukas.bulwahn@...il.com>
> Cc: Bert Vermeulen <bert@...t.com>
> Signed-off-by: Sander Vanheule <sander@...nheule.net>
> ---
>  arch/mips/Kconfig | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 63eb66a22691..9a3a2330fc69 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -642,9 +642,6 @@ config MACH_REALTEK_RTL
>  	select SYS_SUPPORTS_MIPS16
>  	select SYS_SUPPORTS_MULTITHREADING
>  	select SYS_SUPPORTS_VPE_LOADER
> -	select SYS_HAS_EARLY_PRINTK
> -	select SYS_HAS_EARLY_PRINTK_8250
> -	select USE_GENERIC_EARLY_PRINTK_8250
>  	select BOOT_RAW
>  	select PINCTRL
>  	select USE_OF
> -- 
> 2.33.1

applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]