linux-kernel - Re: [PATCH] cpuidle: arm: Enable compile testing for some of drivers

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Date:   Mon, 13 Jan 2020 12:51:12 +0100
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Krzysztof Kozlowski <krzk@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Sudeep Holla <sudeep.holla@....com>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH] cpuidle: arm: Enable compile testing for some of drivers

On Sunday, December 29, 2019 7:09:12 PM CET Krzysztof Kozlowski wrote:
> Some of cpuidle drivers for ARMv7 can be compile tested on this
> architecture because they do not depend on mach-specific bits.  Enable
> compile testing for big.LITTLE, Kirkwood, Zynq, AT91, Exynos and mvebu
> cpuidle drivers.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> ---
>  drivers/cpuidle/Kconfig.arm | 12 ++++++------
>  1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
> index a224d33dda7f..62272ecfa771 100644
> --- a/drivers/cpuidle/Kconfig.arm
> +++ b/drivers/cpuidle/Kconfig.arm
> @@ -25,7 +25,7 @@ config ARM_PSCI_CPUIDLE
>  
>  config ARM_BIG_LITTLE_CPUIDLE
>  	bool "Support for ARM big.LITTLE processors"
> -	depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS
> +	depends on ARCH_VEXPRESS_TC2_PM || ARCH_EXYNOS || COMPILE_TEST
>  	depends on MCPM && !ARM64
>  	select ARM_CPU_SUSPEND
>  	select CPU_IDLE_MULTIPLE_DRIVERS
> @@ -51,13 +51,13 @@ config ARM_HIGHBANK_CPUIDLE
>  
>  config ARM_KIRKWOOD_CPUIDLE
>  	bool "CPU Idle Driver for Marvell Kirkwood SoCs"
> -	depends on MACH_KIRKWOOD && !ARM64
> +	depends on (MACH_KIRKWOOD || COMPILE_TEST) && !ARM64
>  	help
>  	  This adds the CPU Idle driver for Marvell Kirkwood SoCs.
>  
>  config ARM_ZYNQ_CPUIDLE
>  	bool "CPU Idle Driver for Xilinx Zynq processors"
> -	depends on ARCH_ZYNQ && !ARM64
> +	depends on (ARCH_ZYNQ || COMPILE_TEST) && !ARM64
>  	help
>  	  Select this to enable cpuidle on Xilinx Zynq processors.
>  
> @@ -70,19 +70,19 @@ config ARM_U8500_CPUIDLE
>  config ARM_AT91_CPUIDLE
>  	bool "Cpu Idle Driver for the AT91 processors"
>  	default y
> -	depends on ARCH_AT91 && !ARM64
> +	depends on (ARCH_AT91 || COMPILE_TEST) && !ARM64
>  	help
>  	  Select this to enable cpuidle for AT91 processors.
>  
>  config ARM_EXYNOS_CPUIDLE
>  	bool "Cpu Idle Driver for the Exynos processors"
> -	depends on ARCH_EXYNOS && !ARM64
> +	depends on (ARCH_EXYNOS || COMPILE_TEST) && !ARM64
>  	select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
>  	help
>  	  Select this to enable cpuidle for Exynos processors.
>  
>  config ARM_MVEBU_V7_CPUIDLE
>  	bool "CPU Idle Driver for mvebu v7 family processors"
> -	depends on ARCH_MVEBU && !ARM64
> +	depends on (ARCH_MVEBU || COMPILE_TEST) && !ARM64
>  	help
>  	  Select this to enable cpuidle on Armada 370, 38x and XP processors.
> 

Daniel, any concerns regarding this one?