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authorDaniel Lezcano <daniel.lezcano@linaro.org>2012-05-18 07:19:49 +0900
committerKukjin Kim <kgene.kim@samsung.com>2012-05-18 07:19:49 +0900
commitaba607d63c71ef9b185fc7cb9637ab70a2d88491 (patch)
treebd843281a854f69c677cb9f8af010de7cd7578d8
parent4c8b20752893d58bc7b6489c0610951076b0fce8 (diff)
ARM: S3C64XX: use timekeeping wrapper on cpuidle
The timekeeping is computed from the cpuidle core if we set the .en_core_tk_irqen flag. Let's use it and remove the duplicated code. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
-rw-r--r--arch/arm/mach-s3c64xx/cpuidle.c12
1 files changed, 1 insertions, 11 deletions
diff --git a/arch/arm/mach-s3c64xx/cpuidle.c b/arch/arm/mach-s3c64xx/cpuidle.c
index 2750e5412ce..acb197ccf3f 100644
--- a/arch/arm/mach-s3c64xx/cpuidle.c
+++ b/arch/arm/mach-s3c64xx/cpuidle.c
@@ -27,12 +27,7 @@ static int s3c64xx_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
- struct timeval before, after;
unsigned long tmp;
- int idle_time;
-
- local_irq_disable();
- do_gettimeofday(&before);
/* Setup PWRCFG to enter idle mode */
tmp = __raw_readl(S3C64XX_PWR_CFG);
@@ -42,12 +37,6 @@ static int s3c64xx_enter_idle(struct cpuidle_device *dev,
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;
}
@@ -56,6 +45,7 @@ static DEFINE_PER_CPU(struct cpuidle_device, s3c64xx_cpuidle_device);
static struct cpuidle_driver s3c64xx_cpuidle_driver = {
.name = "s3c64xx_cpuidle",
.owner = THIS_MODULE,
+ .en_core_tk_irqen = 1,
.states = {
{
.enter = s3c64xx_enter_idle,