From mboxrd@z Thu Jan  1 00:00:00 1970
From: krzk@kernel.org (Krzysztof Kozlowski)
Date: Sat, 10 Dec 2016 13:13:04 +0200
Subject: [PATCH v2 3/3] ARM: EXYNOS: add CPU_METHOD_OF_DECLARE for exynos
 SoCs
In-Reply-To: <1481366762-26413-4-git-send-email-pankaj.dubey@samsung.com>
References: <1481366762-26413-1-git-send-email-pankaj.dubey@samsung.com>
 <1481366762-26413-4-git-send-email-pankaj.dubey@samsung.com>
Message-ID: <20161210111304.GB24432@kozik-lap>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Sat, Dec 10, 2016 at 04:16:02PM +0530, Pankaj Dubey wrote:
> Add CPU_METHOD_OF_DECLARE to use enable_method property of
> cpus node. To keep compatibility with older DTBs lets keep
> older method of registering smp_ops via machine_descriptor.
> 
> Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
> ---
>  arch/arm/mach-exynos/platsmp.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
> index 94405c7..43eec10 100644
> --- a/arch/arm/mach-exynos/platsmp.c
> +++ b/arch/arm/mach-exynos/platsmp.c
> @@ -474,3 +474,5 @@ const struct smp_operations exynos_smp_ops __initconst = {
>  	.cpu_die		= exynos_cpu_die,
>  #endif
>  };
> +
> +CPU_METHOD_OF_DECLARE(exynos_smp, "samsung,exynos-smp", &exynos_smp_ops);

Are you sure that smp_ops from DT will be set after mdesc->smp? The
arm_dt_init_cpu_maps() is called before smp_set_ops(mdesc->smp)... Have
you actually tried this?

Best regards,
Krzysztof