diff options
Diffstat (limited to 'drivers/cpuidle/cpuidle-big_little.c')
| -rw-r--r-- | drivers/cpuidle/cpuidle-big_little.c | 25 |
1 files changed, 10 insertions, 15 deletions
diff --git a/drivers/cpuidle/cpuidle-big_little.c b/drivers/cpuidle/cpuidle-big_little.c index abe51185f243..08f6bf2f6409 100644 --- a/drivers/cpuidle/cpuidle-big_little.c +++ b/drivers/cpuidle/cpuidle-big_little.c @@ -64,7 +64,8 @@ static struct cpuidle_driver bl_idle_little_driver = { .enter = bl_enter_powerdown, .exit_latency = 700, .target_residency = 2500, - .flags = CPUIDLE_FLAG_TIMER_STOP, + .flags = CPUIDLE_FLAG_TIMER_STOP | + CPUIDLE_FLAG_RCU_IDLE, .name = "C1", .desc = "ARM little-cluster power down", }, @@ -85,7 +86,8 @@ static struct cpuidle_driver bl_idle_big_driver = { .enter = bl_enter_powerdown, .exit_latency = 500, .target_residency = 2000, - .flags = CPUIDLE_FLAG_TIMER_STOP, + .flags = CPUIDLE_FLAG_TIMER_STOP | + CPUIDLE_FLAG_RCU_IDLE, .name = "C1", .desc = "ARM big-cluster power down", }, @@ -120,15 +122,17 @@ static int notrace bl_powerdown_finisher(unsigned long arg) * Called from the CPUidle framework to program the device to the * specified target state selected by the governor. */ -static int bl_enter_powerdown(struct cpuidle_device *dev, - struct cpuidle_driver *drv, int idx) +static __cpuidle int bl_enter_powerdown(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int idx) { cpu_pm_enter(); + ct_cpuidle_enter(); cpu_suspend(0, bl_powerdown_finisher); /* signals the MCPM core that CPU is out of low power state */ mcpm_cpu_powered_up(); + ct_cpuidle_exit(); cpu_pm_exit(); @@ -144,7 +148,7 @@ static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int part_id) if (!cpumask) return -ENOMEM; - for_each_possible_cpu(cpu) + for_each_present_cpu(cpu) if (smp_cpuid_part(cpu) == part_id) cpumask_set_cpu(cpu, cpumask); @@ -162,20 +166,11 @@ static const struct of_device_id compatible_machine_match[] = { static int __init bl_idle_init(void) { int ret; - struct device_node *root = of_find_node_by_path("/"); - const struct of_device_id *match_id; - - if (!root) - return -ENODEV; /* * Initialize the driver just for a compliant set of machines */ - match_id = of_match_node(compatible_machine_match, root); - - of_node_put(root); - - if (!match_id) + if (!of_machine_device_match(compatible_machine_match)) return -ENODEV; if (!mcpm_is_available()) |