cpuidle / omap4 : use CPUIDLE_FLAG_TIMER_STOP flag

Use the CPUIDLE_FLAG_TIMER_STOP and let the cpuidle framework
to handle the CLOCK_EVT_NOTIFY_BROADCAST_ENTER/EXIT when entering
this state.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c
index d639aef..fe0e025 100644 (file)
--- a/arch/arm/mach-omap2/cpuidle44xx.c
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -82,7 +82,6 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev,
                        int index)
 {
        struct omap4_idle_statedata *cx = &omap4_idle_data[index];
-       int cpu_id = smp_processor_id();
 
        local_fiq_disable();
 
@@ -109,8 +108,6 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev,
                }
        }
 
-       clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id);
-
        /*
         * Call idle CPU PM enter notifier chain so that
         * VFP and per CPU interrupt context is saved.
@@ -152,8 +149,6 @@ static int omap4_enter_idle_coupled(struct cpuidle_device *dev,
        if (omap4_mpuss_read_prev_context_state())
                cpu_cluster_pm_exit();
 
-       clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id);
-
 fail:
        cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
        cpu_done[dev->cpu] = false;
@@ -193,7 +188,8 @@ static struct cpuidle_driver omap4_idle_driver = {
                        /* C2 - CPU0 OFF + CPU1 OFF + MPU CSWR */
                        .exit_latency = 328 + 440,
                        .target_residency = 960,
-                       .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED,
+                       .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED |
+                                CPUIDLE_FLAG_TIMER_STOP,
                        .enter = omap4_enter_idle_coupled,
                        .name = "C2",
                        .desc = "MPUSS CSWR",
@@ -202,7 +198,8 @@ static struct cpuidle_driver omap4_idle_driver = {
                        /* C3 - CPU0 OFF + CPU1 OFF + MPU OSWR */
                        .exit_latency = 460 + 518,
                        .target_residency = 1100,
-                       .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED,
+                       .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_COUPLED |
+                                CPUIDLE_FLAG_TIMER_STOP,
                        .enter = omap4_enter_idle_coupled,
                        .name = "C3",
                        .desc = "MPUSS OSWR",