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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>
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4c8b207528
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1 changed files with 1 additions and 11 deletions
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@ -27,12 +27,7 @@ static int s3c64xx_enter_idle(struct cpuidle_device *dev,
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struct cpuidle_driver *drv,
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int index)
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{
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struct timeval before, after;
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unsigned long tmp;
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int idle_time;
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local_irq_disable();
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do_gettimeofday(&before);
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/* Setup PWRCFG to enter idle mode */
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tmp = __raw_readl(S3C64XX_PWR_CFG);
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@ -42,12 +37,6 @@ static int s3c64xx_enter_idle(struct cpuidle_device *dev,
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cpu_do_idle();
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do_gettimeofday(&after);
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local_irq_enable();
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idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
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(after.tv_usec - before.tv_usec);
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dev->last_residency = idle_time;
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return index;
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}
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@ -56,6 +45,7 @@ static DEFINE_PER_CPU(struct cpuidle_device, s3c64xx_cpuidle_device);
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static struct cpuidle_driver s3c64xx_cpuidle_driver = {
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.name = "s3c64xx_cpuidle",
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.owner = THIS_MODULE,
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.en_core_tk_irqen = 1,
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.states = {
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{
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.enter = s3c64xx_enter_idle,
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