Re: [PATCH 1/2] mfd: Factor out WM831x I2C I/O from the core driver

From: Samuel Ortiz
Date: Tue Oct 19 2010 - 07:16:00 EST


Hi Mark,

On Fri, Oct 08, 2010 at 02:23:22PM -0700, Mark Brown wrote:
> diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
> index 1e4d78a..546db5c 100644
> --- a/arch/arm/mach-s3c64xx/Kconfig
> +++ b/arch/arm/mach-s3c64xx/Kconfig
> @@ -185,6 +185,7 @@ config SMDK6410_WM1192_EV1
> select REGULATOR_WM831X
> select S3C24XX_GPIO_EXTRA64
> select MFD_WM831X
> + select MFD_WM831X_I2C
> help
> The Wolfson Microelectronics 1192-EV1 is a WM831x based PMIC
> daughtercard for the Samsung SMDK6410 reference platform.
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 6c6b9f0..608a277 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -315,14 +315,18 @@ config MFD_WM8400
> the functionality of the device.
>
> config MFD_WM831X
> - bool "Support Wolfson Microelectronics WM831x/2x PMICs"
> + bool
> + depends on GENERIC_HARDIRQS
> +
> +config MFD_WM831X_I2C
> + bool "Support Wolfson Microelectronics WM831x/2x PMICs with I2C"
> select MFD_CORE
I think we should select MFD_WM831X here as well otherwise there's nothing
preventing us from building the I2C or the SPI part without the core one. And
that leads to a build breakage.

Cheers,
Samuel.

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Intel Open Source Technology Centre
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