diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-06 17:22:43 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-06 17:22:43 -0700 |
| commit | 02ab343f3b497421793cb4c9725587f9052f7078 (patch) | |
| tree | 282180d93a177bb61d22190f72c54bc029302b24 /arch/arm/mach-vexpress/tc2_pm.c | |
| parent | eb3e6ae960562c1b12b3d9c7bc80687e155d78d0 (diff) | |
| parent | d0e639c9e06d44e713170031fe05fb60ebe680af (diff) | |
Merge 3.12-rc4 into staging-next
We want the staging fixes in this branch as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm/mach-vexpress/tc2_pm.c')
| -rw-r--r-- | arch/arm/mach-vexpress/tc2_pm.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c index 7aeb5d60e48..e6eb4819291 100644 --- a/arch/arm/mach-vexpress/tc2_pm.c +++ b/arch/arm/mach-vexpress/tc2_pm.c @@ -131,6 +131,16 @@ static void tc2_pm_down(u64 residency) } else BUG(); + /* + * If the CPU is committed to power down, make sure + * the power controller will be in charge of waking it + * up upon IRQ, ie IRQ lines are cut from GIC CPU IF + * to the CPU by disabling the GIC CPU IF to prevent wfi + * from completing execution behind power controller back + */ + if (!skip_wfi) + gic_cpu_if_down(); + if (last_man && __mcpm_outbound_enter_critical(cpu, cluster)) { arch_spin_unlock(&tc2_pm_lock); @@ -231,7 +241,6 @@ static void tc2_pm_suspend(u64 residency) cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0); cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1); ve_spc_set_resume_addr(cluster, cpu, virt_to_phys(mcpm_entry_point)); - gic_cpu_if_down(); tc2_pm_down(residency); } |