linux-kernel - Re: [PATCH v6 2/6] ARM: EXYNOS: Move cpufreq and cpuidle device registration to init

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Date:	Tue, 08 Jul 2014 07:56:55 +0900
From:	Kukjin Kim <kgene.kim@...sung.com>
To:	Pankaj Dubey <pankaj.dubey@...sung.com>
CC:	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	kgene.kim@...sung.com, linux@....linux.org.uk, naushad@...sung.com,
	t.figa@...sung.com, joshi@...sung.com, vikas.sajjan@...sung.com,
	chow.kim@...sung.com
Subject: Re: [PATCH v6 2/6] ARM: EXYNOS: Move cpufreq and cpuidle device registration
 to init_machine

On 07/07/14 12:50, Pankaj Dubey wrote:
> As exynos_cpuidle_init and exynos_cpufreq_init function have just one lines
> of code for registering platform devices. We can move these lines to
> exynos_dt_machine_init and delete exynos_cpuidle_init and exynos_cpufreq_init
> function. This will help in reducing lines of code in exynos.c, making it
> more cleaner.
>
> Suggested-by: Tomasz Figa<t.figa@...sung.com>
> Signed-off-by: Pankaj Dubey<pankaj.dubey@...sung.com>
> Reviewed-by: Tomasz Figa<t.figa@...sung.com>
> ---
>   arch/arm/mach-exynos/exynos.c |   20 ++++----------------
>   1 file changed, 4 insertions(+), 16 deletions(-)
>
> diff --git a/arch/arm/mach-exynos/exynos.c b/arch/arm/mach-exynos/exynos.c
> index ff60b4c..47170eb 100644
> --- a/arch/arm/mach-exynos/exynos.c
> +++ b/arch/arm/mach-exynos/exynos.c
> @@ -171,19 +171,6 @@ static struct platform_device exynos_cpuidle = {
>   	.id                = -1,
>   };
>
> -void __init exynos_cpuidle_init(void)
> -{
> -	if (soc_is_exynos5440())
> -		return;
> -
> -	platform_device_register(&exynos_cpuidle);
> -}
> -
> -void __init exynos_cpufreq_init(void)
> -{
> -	platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
> -}
> -
>   void __iomem *sysram_base_addr;
>   void __iomem *sysram_ns_base_addr;
>
> @@ -300,10 +287,11 @@ static void __init exynos_dt_machine_init(void)
>   	if (!IS_ENABLED(CONFIG_SMP))
>   		exynos_sysram_init();
>
> -	if (!of_machine_is_compatible("samsung,exynos5420"))
> -		exynos_cpuidle_init();
> +	if (!of_machine_is_compatible("samsung,exynos5420") ||
> +			!of_machine_is_compatible("samsung,exynos5440"))
> +		platform_device_register(&exynos_cpuidle);
>
> -	exynos_cpufreq_init();
> +	platform_device_register_simple("exynos-cpufreq", -1, NULL, 0);
>
>   	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
>   }

This cannot be applied in my tree now....

- Kukjin
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