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ARM: tegra2: cpuidle: change driver initialization

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Initialize the idle states directly in the driver structure.

That prevents extra structure declaration and memcpy at init time.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Daniel Lezcano 2013-04-03 12:15:17 +00:00 committed by Rafael J. Wysocki
parent 688036b538
commit 14ad7a119b
1 changed files with 20 additions and 20 deletions
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40
arch/arm/mach-tegra/cpuidle-tegra20.c
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@ -43,28 +43,32 @@ static atomic_t abort_barrier;
static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev, static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index); int index);
#define TEGRA20_MAX_STATES 2
#else
#define TEGRA20_MAX_STATES 1
#endif #endif
static struct cpuidle_state tegra_idle_states[] = {
[0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
#ifdef CONFIG_PM_SLEEP
[1] = {
.enter = tegra20_idle_lp2_coupled,
.exit_latency = 5000,
.target_residency = 10000,
.power_usage = 0,
.flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_COUPLED,
.name = "powered-down",
.desc = "CPU power gated",
},
#endif
};
static struct cpuidle_driver tegra_idle_driver = { static struct cpuidle_driver tegra_idle_driver = {
.name = "tegra_idle", .name = "tegra_idle",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.en_core_tk_irqen = 1, .en_core_tk_irqen = 1,
.states = {
ARM_CPUIDLE_WFI_STATE_PWR(600),
#ifdef CONFIG_PM_SLEEP
{
.enter = tegra20_idle_lp2_coupled,
.exit_latency = 5000,
.target_residency = 10000,
.power_usage = 0,
.flags = CPUIDLE_FLAG_TIME_VALID |
CPUIDLE_FLAG_COUPLED,
.name = "powered-down",
.desc = "CPU power gated",
},
#endif
},
.state_count = TEGRA20_MAX_STATES,
.safe_state_index = 0,
}; };
static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device); static DEFINE_PER_CPU(struct cpuidle_device, tegra_idle_device);
@ -226,10 +230,6 @@ int __init tegra20_cpuidle_init(void)
tegra_tear_down_cpu = tegra20_tear_down_cpu; tegra_tear_down_cpu = tegra20_tear_down_cpu;
#endif #endif
drv->state_count = ARRAY_SIZE(tegra_idle_states);
memcpy(drv->states, tegra_idle_states,
drv->state_count * sizeof(drv->states[0]));
ret = cpuidle_register_driver(&tegra_idle_driver); ret = cpuidle_register_driver(&tegra_idle_driver);
if (ret) { if (ret) {
pr_err("CPUidle driver registration failed\n"); pr_err("CPUidle driver registration failed\n");