The Tegra CPU idle LP3 state is doing ARM WFI only. So it's same with
the common ARM_CPUIDLE_WFI_STATE. Using it to replace LP3 now.
Signed-off-by: Joseph Lo <josephl@xxxxxxxxxx>
---
arch/arm/mach-tegra/cpuidle.c | 44 ++--------------------------------------
1 files changed, 3 insertions(+), 41 deletions(-)
diff --git a/arch/arm/mach-tegra/cpuidle.c b/arch/arm/mach-tegra/cpuidle.c
index 566e2f8..4e0b07c 100644
--- a/arch/arm/mach-tegra/cpuidle.c
+++ b/arch/arm/mach-tegra/cpuidle.c
@@ -23,60 +23,22 @@
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/cpu.h>
#include <linux/cpuidle.h>
-#include <linux/hrtimer.h>
-#include <asm/proc-fns.h>
-
-#include <mach/iomap.h>
-
-static int tegra_idle_enter_lp3(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index);
+#include <asm/cpuidle.h>
struct cpuidle_driver tegra_idle_driver = {
.name = "tegra_idle",
.owner = THIS_MODULE,
+ .en_core_tk_irqen = 1,
.state_count = 1,
.states = {
- [0] = {
- .enter = tegra_idle_enter_lp3,
- .exit_latency = 10,
- .target_residency = 10,
- .power_usage = 600,
- .flags = CPUIDLE_FLAG_TIME_VALID,
- .name = "LP3",
- .desc = "CPU flow-controlled",
- },
+ [0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
},
};
static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
-static int tegra_idle_enter_lp3(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index)
-{
- ktime_t enter, exit;
- s64 us;
-
- local_irq_disable();
- local_fiq_disable();
-
- enter = ktime_get();
-
- cpu_do_idle();
-
- exit = ktime_sub(ktime_get(), enter);
- us = ktime_to_us(exit);
-
- local_fiq_enable();
- local_irq_enable();
-
- dev->last_residency = us;
-
- return index;
-}
-
static int __init tegra_cpuidle_init(void)
{
int ret;
--
1.7.0.4
--
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