AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

ARM: S3C64XX: use timekeeping wrapper on cpuidle

Browse Source 
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>
This commit is contained in:
Daniel Lezcano 2012-05-18 07:19:49 +09:00 committed by Kukjin Kim
parent 4c8b207528
commit aba607d63c
1 changed files with 1 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm/mach-s3c64xx/cpuidle.c
View File

@ -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,