Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[karo-tx-linux.git] / arch / arm / mach-vexpress / tc2_pm.c

diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index 7aeb5d60e484642d08ed119ecfd083b3c4074a46..e6eb4819291241f30b51d5e7b58c14d1d07c0d32 100644 (file)
--- 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);
 }