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Diffstat (limited to 'arch/arm/mach-exynos/cpuidle.c')
-rw-r--r--arch/arm/mach-exynos/cpuidle.c58
1 files changed, 26 insertions, 32 deletions
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index 498a7a23e260..17a18ff3d71e 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -41,23 +41,24 @@ static int exynos4_enter_lowpower(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index);
-static struct cpuidle_state exynos4_cpuidle_set[] __initdata = {
- [0] = ARM_CPUIDLE_WFI_STATE,
- [1] = {
- .enter = exynos4_enter_lowpower,
- .exit_latency = 300,
- .target_residency = 100000,
- .flags = CPUIDLE_FLAG_TIME_VALID,
- .name = "C1",
- .desc = "ARM power down",
- },
-};
-
static DEFINE_PER_CPU(struct cpuidle_device, exynos4_cpuidle_device);
static struct cpuidle_driver exynos4_idle_driver = {
.name = "exynos4_idle",
.owner = THIS_MODULE,
+ .states = {
+ [0] = ARM_CPUIDLE_WFI_STATE,
+ [1] = {
+ .enter = exynos4_enter_lowpower,
+ .exit_latency = 300,
+ .target_residency = 100000,
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .name = "C1",
+ .desc = "ARM power down",
+ },
+ },
+ .state_count = 2,
+ .safe_state_index = 0,
};
/* Ext-GIC nIRQ/nFIQ is the only wakeup source in AFTR */
@@ -192,37 +193,30 @@ static void __init exynos5_core_down_clk(void)
static int __init exynos4_init_cpuidle(void)
{
- int i, max_cpuidle_state, cpu_id;
+ int cpu_id, ret;
struct cpuidle_device *device;
- struct cpuidle_driver *drv = &exynos4_idle_driver;
if (soc_is_exynos5250())
exynos5_core_down_clk();
- /* Setup cpuidle driver */
- drv->state_count = (sizeof(exynos4_cpuidle_set) /
- sizeof(struct cpuidle_state));
- max_cpuidle_state = drv->state_count;
- for (i = 0; i < max_cpuidle_state; i++) {
- memcpy(&drv->states[i], &exynos4_cpuidle_set[i],
- sizeof(struct cpuidle_state));
+ ret = cpuidle_register_driver(&exynos4_idle_driver);
+ if (ret) {
+ printk(KERN_ERR "CPUidle failed to register driver\n");
+ return ret;
}
- drv->safe_state_index = 0;
- cpuidle_register_driver(&exynos4_idle_driver);
- for_each_cpu(cpu_id, cpu_online_mask) {
+ for_each_online_cpu(cpu_id) {
device = &per_cpu(exynos4_cpuidle_device, cpu_id);
device->cpu = cpu_id;
- if (cpu_id == 0)
- device->state_count = (sizeof(exynos4_cpuidle_set) /
- sizeof(struct cpuidle_state));
- else
- device->state_count = 1; /* Support IDLE only */
+ /* Support IDLE only */
+ if (cpu_id != 0)
+ device->state_count = 1;
- if (cpuidle_register_device(device)) {
- printk(KERN_ERR "CPUidle register device failed\n,");
- return -EIO;
+ ret = cpuidle_register_device(device);
+ if (ret) {
+ printk(KERN_ERR "CPUidle register device failed\n");
+ return ret;
}
}