Hi,
I verified this patch on exynos4 based origen board.
Tested-by: Amit Daniel amit.kachhap@linaro.org
Thanks, Amit D
On 29 February 2012 08:41, Robert Lee rob.lee@linaro.org wrote:
Enable core cpuidle timekeeping and irq enabling and remove that handling from this code.
Signed-off-by: Robert Lee rob.lee@linaro.org
arch/arm/mach-exynos/cpuidle.c | 53 ++++----------------------------------- 1 files changed, 6 insertions(+), 47 deletions(-)
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index 9bf6743..75bb88b 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -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>
@@ -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[] = {
- [0] = {
- .enter = exynos4_enter_idle,
- .exit_latency = 1,
- .target_residency = 100000,
- .flags = CPUIDLE_FLAG_TIME_VALID,
- .name = "C0",
- .desc = "ARM clock gating(WFI)",
- },
- [0] = CPUIDLE_ARM_WFI_STATE,
[1] = { .enter = exynos4_enter_lowpower, .exit_latency = 300, @@ -63,8 +54,9 @@ static struct cpuidle_state exynos4_cpuidle_set[] = { 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 */ @@ -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 */ @@ -148,34 +135,6 @@ 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; }
@@ -190,7 +149,7 @@ 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 cpuidle_simple_enter(dev, drv, new_index);
else return exynos4_enter_core0_aftr(dev, drv, new_index); } -- 1.7.1