linux-kernel - Re: [PATCH] pinctrl: spacemit: enable config option

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Message-ID: <20250207-promenade-hazily-d7900cbc127e@spud>
Date: Fri, 7 Feb 2025 16:49:28 +0000
From: Conor Dooley <conor@...nel.org>
To: Yixun Lan <dlan@...too.org>
Cc: Linus Walleij <linus.walleij@...aro.org>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>, Alex Elder <elder@...nel.org>,
	linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org, spacemit@...ts.linux.dev
Subject: Re: [PATCH] pinctrl: spacemit: enable config option

On Fri, Feb 07, 2025 at 08:11:42PM +0800, Yixun Lan wrote:
> Pinctrl is an essential driver for SpacemiT's SoC,
> so let's enable it by default for this SoC.
> 
> The CONFIG_PINCTRL_SPACEMIT_K1 isn't enabled when using
> 'make defconfig' to select kernel configuration options.
> This result in a broken uart driver where fail at probe()
> stage due to no pins found.
> 
> Fixes: a83c29e1d145 ("pinctrl: spacemit: add support for SpacemiT K1 SoC")
> Reported-by: Alex Elder <elder@...nel.org>
> Signed-off-by: Yixun Lan <dlan@...too.org>
> ---
> This should fix problem that CONFIG_PINCTRL_SPACEMIT_K1 is not enabled
> when using make defconfig, thus fail to initilize uart driver which requst
> pins during probe stage.
> ---
>  arch/riscv/Kconfig.socs          | 1 +
>  drivers/pinctrl/spacemit/Kconfig | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs
> index 1916cf7ba450ec9958265de2ca41dc504d4d2f7c..17606940bb5239d0fdfc6b5aefb50eeb982d14aa 100644
> --- a/arch/riscv/Kconfig.socs
> +++ b/arch/riscv/Kconfig.socs
> @@ -26,6 +26,7 @@ config ARCH_SOPHGO
>  
>  config ARCH_SPACEMIT
>  	bool "SpacemiT SoCs"
> +	select PINCTRL
>  	help
>  	  This enables support for SpacemiT SoC platform hardware.
>  

Acked-by: Conor Dooley <conor.dooley@...rochip.com>

> diff --git a/drivers/pinctrl/spacemit/Kconfig b/drivers/pinctrl/spacemit/Kconfig
> index 168f8a5ffbb952cbeae3e3401c11149558e0a84b..aa3dea535def87ed75d86bc555b2b90643adbdea 100644
> --- a/drivers/pinctrl/spacemit/Kconfig
> +++ b/drivers/pinctrl/spacemit/Kconfig
> @@ -7,6 +7,7 @@ config PINCTRL_SPACEMIT_K1
>  	tristate "SpacemiT K1 SoC Pinctrl driver"
>  	depends on ARCH_SPACEMIT || COMPILE_TEST
>  	depends on OF
> +	default ARCH_SPACEMIT

This is effectively just "default y", since ARCH_SPACEMIT is a
dependency.

>  	select GENERIC_PINCTRL_GROUPS
>  	select GENERIC_PINMUX_FUNCTIONS
>  	select GENERIC_PINCONF
> 
> ---
> base-commit: 2014c95afecee3e76ca4a56956a936e23283f05b
> change-id: 20250207-k1-pinctrl-option-de5bdfd6b42e
> 
> Best regards,
> -- 
> Yixun Lan
> 

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