On 05/21/2013 04:13 AM, Joseph Lo wrote:
> The Tegra114 could hotplug the CPU0, but the common cpu_disable didn't
> support that. Adding a Tegra specific cpu_disable function for it.
>
> Signed-off-by: Joseph Lo <josephl@xxxxxxxxxx>
> diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c
> +int tegra_cpu_disable(unsigned int cpu)
> +{
> + switch (tegra_chip_id) {
> + case TEGRA114:
> + return 0;
> + default:
> + return cpu == 0 ? -EPERM : 0;
> + }
> +}
Do we expect all/most future chips to support hotplug of CPU0? Or at
least, fewer chips to have the restriction than not? If so, it might be
more forward-looking to write that as:
if (tegra_chip_id == TEGRA30)
return cpu == 0 ? -EPERM : 0;
return 0;
?
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