diff options
| author | Linus Walleij <linus.walleij@linaro.org> | 2013-10-08 13:27:11 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-10-08 13:27:11 +0200 |
| commit | bfabb59433fc18ff78d2818e10e212d0f85d56ae (patch) | |
| tree | dd7cbead179c09c62627a84c16c802d99095ba6e /arch/arm/mach-vexpress/tc2_pm.c | |
| parent | pinctrl: sirf: add USB1/UART1 pinmux usb/uart share (diff) | |
| parent | Linux 3.12-rc4 (diff) | |
| download | linux-bfabb59433fc18ff78d2818e10e212d0f85d56ae.tar.xz linux-bfabb59433fc18ff78d2818e10e212d0f85d56ae.zip | |
Merge tag 'v3.12-rc4' into devel
Linux 3.12-rc4
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 7aeb5d60e484..e6eb48192912 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); } |