Re: [PATCH 2/4] ARM: exynos: cpuidle: Use the common cpuidle register routine

[Tomasz Figa <tomasz.figa@gmail.com>]

On Thursday 18 of July 2013 14:54:28 Daniel Lezcano wrote:
> Now we have the same routine than the one handled by the cpuidle
> framework.
> 
> Let's use it.
> 
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
>  arch/arm/mach-exynos/cpuidle.c |   24 +-----------------------
>  1 file changed, 1 insertion(+), 23 deletions(-)
> 
> diff --git a/arch/arm/mach-exynos/cpuidle.c
> b/arch/arm/mach-exynos/cpuidle.c index cc4b097..d8fc1a2 100644
> --- a/arch/arm/mach-exynos/cpuidle.c
> +++ b/arch/arm/mach-exynos/cpuidle.c
> @@ -41,8 +41,6 @@ static int exynos4_enter_lowpower(struct
> cpuidle_device *dev, struct cpuidle_driver *drv,
>  				int index);
> 
> -static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device);
> -
>  static struct cpuidle_driver exynos4_idle_driver = {
>  	.name			= "exynos4_idle",
>  	.owner			= THIS_MODULE,
> @@ -188,29 +186,9 @@ static void __init exynos5_core_down_clk(void)
> 
>  static int __init exynos4_init_cpuidle(void)
>  {
> -	int cpu_id, ret;
> -	struct cpuidle_device *device;
> -
>  	if (soc_is_exynos5250())
>  		exynos5_core_down_clk();
> 
> -	ret = cpuidle_register_driver(&exynos4_idle_driver);
> -	if (ret) {
> -		printk(KERN_ERR "CPUidle failed to register driver\n");
> -		return ret;
> -	}
> -
> -	for_each_online_cpu(cpu_id) {
> -		device = &per_cpu(exynos4_cpuidle_device, cpu_id);
> -		device->cpu = cpu_id;
> -
> -		ret = cpuidle_register_device(device);
> -		if (ret) {
> -			printk(KERN_ERR "CPUidle register device 
failed\n");
> -			return ret;
> -		}
> -	}
> -
> -	return 0;
> +	return cpuidle_register(&exynos4_idle_driver, NULL);
>  }
>  device_initcall(exynos4_init_cpuidle);

This is nice, but I would like to see clarification for my question posted 
to patch 1/4.

Best regards,
Tomasz