linux-kernel - Re: [PATCH] ARM: at91: select CONFIG_ARM_CPU

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Date:   Tue, 23 May 2017 14:57:38 +0200
From:   Alexandre Belloni <alexandre.belloni@...e-electrons.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Nicolas Ferre <nicolas.ferre@...rochip.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: at91: select CONFIG_ARM_CPU_SUSPEND

Hi,

On 18/05/2017 at 16:41:29 +0200, Arnd Bergmann wrote:
> The reference to cpu_resume requires the corresponding
> generic code to be enabled when CONFIG_PM is set:
> 
> arch/arm/mach-at91/pm.o: In function `sama5d2_pm_init':
> pm.c:(.init.text+0x5e8): undefined reference to `cpu_resume'
> 
> Fixes: 24a0f5c539f9 ("ARM: at91: pm: Add sama5d2 backup mode")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  arch/arm/mach-at91/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
> index e754efd0016e..af76234d60c8 100644
> --- a/arch/arm/mach-at91/Kconfig
> +++ b/arch/arm/mach-at91/Kconfig
> @@ -1,6 +1,7 @@
>  menuconfig ARCH_AT91
>  	bool "Atmel SoCs"
>  	depends on ARCH_MULTI_V4_V5 || ARCH_MULTI_V6_V7
> +	select ARM_CPU_SUSPEND if PM

This does not apply on v4.12-rc1 because the depends are different.

>  	select COMMON_CLK_AT91
>  	select GPIOLIB
>  	select PINCTRL
> -- 
> 2.9.0
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com