linux-kernel - Re: [PATCH 2/9] ARM: imx: MACH_MX31ADS_WM1133_EV1 needs REGULATOR

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Date:	Fri, 15 Feb 2013 18:21:49 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	arm@...nel.org, Shawn Guo <shawn.guo@...aro.org>,
	Axel Lin <axel.lin@...il.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Subject: Re: [PATCH 2/9] ARM: imx: MACH_MX31ADS_WM1133_EV1 needs
 REGULATOR_WM8350

On Thu, Feb 14, 2013 at 11:47:44PM +0100, Arnd Bergmann wrote:
> MACH_MX31ADS_WM1133_EV1 already depends on REGULATOR_WM8350,
> but that still allows REGULATOR_WM8350 to be a loadable
> module. Depending on REGULATOR_WM8350 to be built-in
> ensures we cannot create a broken configuration.
> 
> Without this patch, building allmodconfig results in:
> 
> arch/arm/mach-imx/built-in.o: In function `mx31_wm8350_init':
> arch/arm/mach-imx/mach-mx31ads.c:461: undefined reference to `wm8350_register_regulator'
> arch/arm/mach-imx/mach-mx31ads.c:471: undefined reference to `wm8350_dcdc_set_slot'
> arch/arm/mach-imx/mach-mx31ads.c:473: undefined reference to `wm8350_isink_set_flash'
> arch/arm/mach-imx/mach-mx31ads.c:480: undefined reference to `wm8350_dcdc25_set_mode'
> arch/arm/mach-imx/mach-mx31ads.c:485: undefined reference to `wm8350_register_led'
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Cc: Shawn Guo <shawn.guo@...aro.org>
> Cc: Sascha Hauer <s.hauer@...gutronix.de>
> Cc: Axel Lin <axel.lin@...il.com>
> Cc: Mark Brown <broonie@...nsource.wolfsonmicro.com>

Hail to devicetree probing where such things don't happen.

Acked-by: Sascha Hauer <s.hauer@...gutronix.de>

> ---
>  arch/arm/mach-imx/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
> index 7b11d33..4c9c6f9 100644
> --- a/arch/arm/mach-imx/Kconfig
> +++ b/arch/arm/mach-imx/Kconfig
> @@ -480,7 +480,7 @@ config MACH_MX31ADS_WM1133_EV1
>  	bool "Support Wolfson Microelectronics 1133-EV1 module"
>  	depends on MACH_MX31ADS
>  	depends on MFD_WM8350_I2C
> -	depends on REGULATOR_WM8350
> +	depends on REGULATOR_WM8350 = y
>  	select MFD_WM8350_CONFIG_MODE_0
>  	select MFD_WM8352_CONFIG_MODE_0
>  	help
> -- 
> 1.8.1.2
> 
> 

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