[PATCH 5/5] ARM: tegra: cpuidle: use firmware call for power down
From: acourbot@nvidia.com (Alexandre Courbot)
Date: 2014-01-21 10:10:52
Also in:
linux-tegra, lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Invoke the do_idle() firmware call before suspending a CPU so that the underlying firmware (if any) can take necessary action. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> --- arch/arm/mach-tegra/cpuidle-tegra114.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index e0b87300243d..c42fd41065d2 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c@@ -19,6 +19,7 @@ #include <linux/cpuidle.h> #include <linux/cpu_pm.h> #include <linux/clockchips.h> +#include <asm/firmware.h> #include <asm/cpuidle.h> #include <asm/suspend.h>
@@ -45,6 +46,8 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev, clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu); + call_firmware_op(do_idle); + cpu_suspend(0, tegra30_sleep_cpu_secondary_finish); clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
--
1.8.5.3