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From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Cc: Lee Jones <lee@kernel.org>, Yixun Lan <dlan@gentoo.org>,
	Alex Elder <elder@riscstar.com>,
	Andi Shyti <andi.shyti@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev, linux-i2c@vger.kernel.org,
	linux-rtc@vger.kernel.org
Subject: Re: [PATCH v4 3/3] rtc: spacemit: default module when MFD_SPACEMIT_P1 is enabled
Date: Thu, 25 Dec 2025 17:53:36 +0100	[thread overview]
Message-ID: <202512251653368b33c7e7@mail.local> (raw)
In-Reply-To: <20251225-p1-kconfig-fix-v4-3-44b6728117c1@linux.spacemit.com>

On 25/12/2025 15:46:33+0800, Troy Mitchell wrote:
> The RTC driver defaulted to the same value as MFD_SPACEMIT_P1, which
> caused it to be built-in automatically whenever the PMIC support was
> set to y.
> 
> This is not always desirable, as the RTC function is not required on
> all platforms using the SpacemiT P1 PMIC.

But then, can't people simply change the config? I don't feel like
this is an improvement.

> 
> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
> ---
>  drivers/rtc/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
> index 50dc779f7f983074df7882200c90f0df21d142f2..53866493e9bbaf35ff0de85cbfe43e8343eadc1e 100644
> --- a/drivers/rtc/Kconfig
> +++ b/drivers/rtc/Kconfig
> @@ -410,7 +410,7 @@ config RTC_DRV_SPACEMIT_P1
>  	tristate "SpacemiT P1 RTC"
>  	depends on ARCH_SPACEMIT || COMPILE_TEST
>  	depends on MFD_SPACEMIT_P1
> -	default MFD_SPACEMIT_P1
> +	default m if MFD_SPACEMIT_P1
>  	help
>  	  Enable support for the RTC function in the SpacemiT P1 PMIC.
>  	  This driver can also be built as a module, which will be called
> 
> -- 
> 2.52.0
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

WARNING: multiple messages have this Message-ID (diff)
From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Troy Mitchell <troy.mitchell@linux.spacemit.com>
Cc: Lee Jones <lee@kernel.org>, Yixun Lan <dlan@gentoo.org>,
	Alex Elder <elder@riscstar.com>,
	Andi Shyti <andi.shyti@kernel.org>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev, linux-i2c@vger.kernel.org,
	linux-rtc@vger.kernel.org
Subject: Re: [PATCH v4 3/3] rtc: spacemit: default module when MFD_SPACEMIT_P1 is enabled
Date: Thu, 25 Dec 2025 17:53:36 +0100	[thread overview]
Message-ID: <202512251653368b33c7e7@mail.local> (raw)
In-Reply-To: <20251225-p1-kconfig-fix-v4-3-44b6728117c1@linux.spacemit.com>

On 25/12/2025 15:46:33+0800, Troy Mitchell wrote:
> The RTC driver defaulted to the same value as MFD_SPACEMIT_P1, which
> caused it to be built-in automatically whenever the PMIC support was
> set to y.
> 
> This is not always desirable, as the RTC function is not required on
> all platforms using the SpacemiT P1 PMIC.

But then, can't people simply change the config? I don't feel like
this is an improvement.

> 
> Signed-off-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>
> ---
>  drivers/rtc/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
> index 50dc779f7f983074df7882200c90f0df21d142f2..53866493e9bbaf35ff0de85cbfe43e8343eadc1e 100644
> --- a/drivers/rtc/Kconfig
> +++ b/drivers/rtc/Kconfig
> @@ -410,7 +410,7 @@ config RTC_DRV_SPACEMIT_P1
>  	tristate "SpacemiT P1 RTC"
>  	depends on ARCH_SPACEMIT || COMPILE_TEST
>  	depends on MFD_SPACEMIT_P1
> -	default MFD_SPACEMIT_P1
> +	default m if MFD_SPACEMIT_P1
>  	help
>  	  Enable support for the RTC function in the SpacemiT P1 PMIC.
>  	  This driver can also be built as a module, which will be called
> 
> -- 
> 2.52.0
> 

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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linux-riscv@lists.infradead.org
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  reply	other threads:[~2025-12-25 16:53 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-25  7:46 [PATCH v4 0/3] spacemit: fix P1 sub-device Kconfig defaults and dependencies Troy Mitchell
2025-12-25  7:46 ` Troy Mitchell
2025-12-25  7:46 ` [PATCH v4 1/3] regulator: spacemit: MFD_SPACEMIT_P1 as dependencies Troy Mitchell
2025-12-25  7:46   ` Troy Mitchell
2025-12-25  7:46 ` [PATCH v4 2/3] mfd: simple-mfd-i2c: add default value Troy Mitchell
2025-12-25  7:46   ` Troy Mitchell
2026-01-09 16:41   ` (subset) " Lee Jones
2026-01-09 16:41     ` Lee Jones
2025-12-25  7:46 ` [PATCH v4 3/3] rtc: spacemit: default module when MFD_SPACEMIT_P1 is enabled Troy Mitchell
2025-12-25  7:46   ` Troy Mitchell
2025-12-25 16:53   ` Alexandre Belloni [this message]
2025-12-25 16:53     ` Alexandre Belloni
2025-12-29 18:02     ` Alex Elder
2025-12-29 18:02       ` Alex Elder
2025-12-30  0:51       ` Alexandre Belloni
2025-12-30  0:51         ` Alexandre Belloni
2025-12-30  1:46         ` Alex Elder
2025-12-30  1:46           ` Alex Elder
2026-01-09 22:36           ` Alexandre Belloni
2026-01-09 22:36             ` Alexandre Belloni
2026-01-11 19:55             ` Alex Elder
2026-01-11 19:55               ` Alex Elder
2026-01-12  1:49               ` Troy Mitchell
2026-01-12  1:49                 ` Troy Mitchell

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