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Revert "ARM: tegra: add cpu_disable for hotplug"

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This reverts commit 510bb59 "ARM: tegra: add cpu_disable for hotplug".

The Tegra114 support CPU0 hotplug function in HW physically, but it needs
other software to make it work normally after we add CPU idle power down
mode support. So remove them for now.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Joseph Lo 2013-07-19 17:25:23 +08:00 committed by Stephen Warren
parent f2bd77c8f3
commit a99d34b506
3 changed files with 0 additions and 13 deletions
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1
arch/arm/mach-tegra/common.h
View File

@ -2,4 +2,3 @@ extern struct smp_operations tegra_smp_ops;
extern int tegra_cpu_kill(unsigned int cpu);
extern void tegra_cpu_die(unsigned int cpu);
extern int tegra_cpu_disable(unsigned int cpu);

11
arch/arm/mach-tegra/hotplug.c
View File

@ -46,17 +46,6 @@ void __ref tegra_cpu_die(unsigned int cpu)
BUG();
}
int tegra_cpu_disable(unsigned int cpu)
{
switch (tegra_chip_id) {
case TEGRA20:
case TEGRA30:
return cpu == 0 ? -EPERM : 0;
default:
return 0;
}
}
void __init tegra_hotplug_init(void)
{
if (!IS_ENABLED(CONFIG_HOTPLUG_CPU))

1
arch/arm/mach-tegra/platsmp.c
View File

@ -196,6 +196,5 @@ struct smp_operations tegra_smp_ops __initdata = {
#ifdef CONFIG_HOTPLUG_CPU
.cpu_kill = tegra_cpu_kill,
.cpu_die = tegra_cpu_die,
.cpu_disable = tegra_cpu_disable,
#endif
};