[PATCH 2/4] ARM: sunxi: mc-smp: Use DT enable-method for sun9i A80 SMP

[Rob Herring]

On Thu, Mar 08, 2018 at 11:00:10PM +0800, Chen-Yu Tsai wrote:
> Instead of having an early init function check the machine compatible
> and installing multi-cluster SMP support for the A80 if it matches,
> use a new cpu enable-method string. This makes the platform support
> future proof in case anyone manages to add PSCI support.
> 
> The original init code for the SMP support is changed into the
> .prepare_cpus callback in the smp_operations structure. Instead of
> panicing when resources are missing like on some platforms, our code
> merely guards against engaging SMP or CPU hotplug and returns an error.
> 
> Signed-off-by: Chen-Yu Tsai <wens at csie.org>
> ---
>  Documentation/devicetree/bindings/arm/cpus.txt |  1 +

Reviewed-by: Rob Herring <robh at kernel.org>

>  arch/arm/mach-sunxi/mc_smp.c                   | 21 ++++++++++++++++++++-
>  2 files changed, 21 insertions(+), 1 deletion(-)