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From: Dmitry Osipenko <digetx@gmail.com>
To: Arnd Bergmann <arnd@kernel.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Jonathan Hunter <jonathanh@nvidia.com>
Cc: soc@kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: tegra: add regulator dependency
Date: Wed, 21 Jul 2021 18:29:32 +0300	[thread overview]
Message-ID: <c9968f90-0633-9467-a3fb-725b92116fe2@gmail.com> (raw)
In-Reply-To: <20210721151457.2285669-1-arnd@kernel.org>

21.07.2021 18:14, Arnd Bergmann пишет:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> The two regulator drivers in the drivers/soc/ directory fail to build
> when regulator support is disabled:
> 
> aarch64-linux-ld: drivers/soc/tegra/regulators-tegra20.o: in function `tegra20_regulator_reboot':
> regulators-tegra20.c:(.text.tegra20_regulator_reboot+0x4c): undefined reference to `regulator_sync_voltage_rdev'
> aarch64-linux-ld: regulators-tegra20.c:(.text.tegra20_regulator_reboot+0x58): undefined reference to `regulator_sync_voltage_rdev'
> aarch64-linux-ld: drivers/soc/tegra/regulators-tegra30.o: in function `tegra30_regulator_reboot':
> regulators-tegra30.c:(.text.tegra30_regulator_reboot+0x44): undefined reference to `regulator_sync_voltage_rdev'
> aarch64-linux-ld: regulators-tegra30.c:(.text.tegra30_regulator_reboot+0x50): undefined reference to `regulator_sync_voltage_rdev'
> 
> Add a Kconfig dependency to avoid this configuration.
> 
> Fixes: 496747e7d907 ("soc/tegra: regulators: Add regulators coupler for Tegra20")
> Fixes: 783807436f36 ("soc/tegra: regulators: Add regulators coupler for Tegra30")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/soc/tegra/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig
> index db49075b1946..c56122be27a9 100644
> --- a/drivers/soc/tegra/Kconfig
> +++ b/drivers/soc/tegra/Kconfig
> @@ -153,8 +153,10 @@ config SOC_TEGRA_POWERGATE_BPMP
>  
>  config SOC_TEGRA20_VOLTAGE_COUPLER
>  	bool "Voltage scaling support for Tegra20 SoCs"
> +	depends on REGULATOR
>  	depends on ARCH_TEGRA_2x_SOC || COMPILE_TEST
>  
>  config SOC_TEGRA30_VOLTAGE_COUPLER
>  	bool "Voltage scaling support for Tegra30 SoCs"
> +	depends on REGULATOR
>  	depends on ARCH_TEGRA_3x_SOC || COMPILE_TEST
> 

Hello Arnd,

Thank you for the patch!

I also sent out the fix [1] about a month ago and was trying to ping
Thierry. Unfortunately there was no reaction so far and now Thierry is
on vacation.

[1]
https://patchwork.ozlabs.org/project/linux-tegra/patch/20210621160739.22448-1-digetx@gmail.com/

It looks like my variant of the fix should be a bit more correct since
it won't build the regulator drivers if both TEGRA=n and REGULATOR=n.

I guess it should be fine if you could take the patch directly, perhaps
Jon could ack the patch for that. Otherwise we could wait for Thierry to
return.

  reply	other threads:[~2021-07-21 15:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-21 15:14 [PATCH] arm64: tegra: add regulator dependency Arnd Bergmann
2021-07-21 15:29 ` Dmitry Osipenko [this message]
2021-07-21 19:59   ` Arnd Bergmann

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