linux-kernel - Re: [PATCH 5/6] ARM: imx: select CPU_FREQ

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Date:	Thu, 23 Aug 2012 10:13:21 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Russell King <rmk+kernel@....linux.org.uk>,
	linux-kernel@...r.kernel.org,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Yong Shen <yong.shen@...aro.org>,
	Shawn Guo <shawn.guo@...escale.com>, stable@...r.kernel.org
Subject: Re: [PATCH 5/6] ARM: imx: select CPU_FREQ_TABLE when needed

On Wed, Aug 22, 2012 at 05:13:09PM +0200, Arnd Bergmann wrote:
> The i.MX cpufreq implementation uses the CPU_FREQ_TABLE helpers,
> so it needs to select that code to be built. This problem has
> apparently existed since the i.MX cpufreq code was first merged
> in v3.6.37.
> 
s/v3.6.37/v2.6.37?

Otherwise,

Acked-by: Shawn Guo <shawn.guo@...aro.org>

> Building IMX without CPU_FREQ_TABLE results in:
> 
> arch/arm/plat-mxc/built-in.o: In function `mxc_cpufreq_exit':
> arch/arm/plat-mxc/cpufreq.c:173: undefined reference to `cpufreq_frequency_table_put_attr'
> arch/arm/plat-mxc/built-in.o: In function `mxc_set_target':
> arch/arm/plat-mxc/cpufreq.c:84: undefined reference to `cpufreq_frequency_table_target'
> arch/arm/plat-mxc/built-in.o: In function `mxc_verify_speed':
> arch/arm/plat-mxc/cpufreq.c:65: undefined reference to `cpufreq_frequency_table_verify'
> arch/arm/plat-mxc/built-in.o: In function `mxc_cpufreq_init':
> arch/arm/plat-mxc/cpufreq.c:154: undefined reference to `cpufreq_frequency_table_cpuinfo'
> arch/arm/plat-mxc/cpufreq.c:162: undefined reference to `cpufreq_frequency_table_get_attr'
> 
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Cc: Sascha Hauer <s.hauer@...gutronix.de>
> Cc: Yong Shen <yong.shen@...aro.org>
> Cc: Shawn Guo <shawn.guo@...escale.com>
> Cc: stable@...r.kernel.org
> ---
>  arch/arm/Kconfig |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index e91c7cd..84b5a0c 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -2150,6 +2150,7 @@ source "drivers/cpufreq/Kconfig"
>  config CPU_FREQ_IMX
>  	tristate "CPUfreq driver for i.MX CPUs"
>  	depends on ARCH_MXC && CPU_FREQ
> +	select CPU_FREQ_TABLE
>  	help
>  	  This enables the CPUfreq driver for i.MX CPUs.
>  
> -- 
> 1.7.10
> 
> --
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