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yaml
---
r: 303083
b: refs/heads/master
c: 06c77b3
h: refs/heads/master
i:
  303081: cbbec75
  303079: 6898575
v: v3
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Amit Daniel Kachhap authored and Kukjin Kim committed May 12, 2012
1 parent cea382d commit 783a100
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Showing 2 changed files with 7 additions and 48 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 81d413554a020ebe4f1f761cc5c417a306687511
refs/heads/master: 06c77b3ce1b81163d74d9d5e904de731934e8510
53 changes: 6 additions & 47 deletions trunk/arch/arm/mach-exynos/cpuidle.c
Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,7 @@
#include <asm/smp_scu.h>
#include <asm/suspend.h>
#include <asm/unified.h>
#include <asm/cpuidle.h>
#include <mach/regs-pmu.h>
#include <mach/pmu.h>

Expand All @@ -34,22 +35,12 @@

#define S5P_CHECK_AFTR 0xFCBA0D10

static int exynos4_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index);
static int exynos4_enter_lowpower(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index);

static struct cpuidle_state exynos4_cpuidle_set[] __initdata = {
[0] = {
.enter = exynos4_enter_idle,
.exit_latency = 1,
.target_residency = 100000,
.flags = CPUIDLE_FLAG_TIME_VALID,
.name = "C0",
.desc = "ARM clock gating(WFI)",
},
[0] = ARM_CPUIDLE_WFI_STATE,
[1] = {
.enter = exynos4_enter_lowpower,
.exit_latency = 300,
Expand All @@ -63,8 +54,9 @@ static struct cpuidle_state exynos4_cpuidle_set[] __initdata = {
static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device);

static struct cpuidle_driver exynos4_idle_driver = {
.name = "exynos4_idle",
.owner = THIS_MODULE,
.name = "exynos4_idle",
.owner = THIS_MODULE,
.en_core_tk_irqen = 1,
};

/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */
Expand Down Expand Up @@ -103,13 +95,8 @@ static int exynos4_enter_core0_aftr(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
struct timeval before, after;
int idle_time;
unsigned long tmp;

local_irq_disable();
do_gettimeofday(&before);

exynos4_set_wakeupmask();

/* Set value of power down register for aftr mode */
Expand Down Expand Up @@ -150,34 +137,6 @@ static int exynos4_enter_core0_aftr(struct cpuidle_device *dev,
/* Clear wakeup state register */
__raw_writel(0x0, S5P_WAKEUP_STAT);

do_gettimeofday(&after);

local_irq_enable();
idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
(after.tv_usec - before.tv_usec);

dev->last_residency = idle_time;
return index;
}

static int exynos4_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
struct timeval before, after;
int idle_time;

local_irq_disable();
do_gettimeofday(&before);

cpu_do_idle();

do_gettimeofday(&after);
local_irq_enable();
idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
(after.tv_usec - before.tv_usec);

dev->last_residency = idle_time;
return index;
}

Expand All @@ -192,7 +151,7 @@ static int exynos4_enter_lowpower(struct cpuidle_device *dev,
new_index = drv->safe_state_index;

if (new_index == 0)
return exynos4_enter_idle(dev, drv, new_index);
return arm_cpuidle_simple_enter(dev, drv, new_index);
else
return exynos4_enter_core0_aftr(dev, drv, new_index);
}
Expand Down

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