linux-kernel - Re: [PATCH] mfd: simple-mfd-i2c: Select MFD

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Date:   Tue, 2 Nov 2021 11:17:31 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Robert Marko <robert.marko@...tura.hr>
Cc:     michael@...le.cc, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: simple-mfd-i2c: Select MFD_CORE to fix build error

On Tue, 02 Nov 2021, Robert Marko wrote:

> MFD_SIMPLE_MFD_I2C should select the MFD_CORE to a prevent build error:
> 
> aarch64-linux-ld: drivers/mfd/simple-mfd-i2c.o: in function `simple_mfd_i2c_probe':
> drivers/mfd/simple-mfd-i2c.c:55: undefined reference to `devm_mfd_add_devices'

What is your use-case?

How are you enabling this symbol?

> Fixes: 3abee4579484 ("mfd: Add simple regmap based I2C driver")
> Signed-off-by: Robert Marko <robert.marko@...tura.hr>
> ---
>  drivers/mfd/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 61992edf6a4d..2de69892b631 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1204,6 +1204,7 @@ config MFD_SI476X_CORE
>  config MFD_SIMPLE_MFD_I2C
>  	tristate
>  	depends on I2C
> +	select MFD_CORE
>  	select REGMAP_I2C
>  	help
>  	  This driver creates a single register map with the intention for it

-- 
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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