ARM: tegra2: cpuidle: change driver initialization

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>

arch/arm/mach-tegra/cpuidle-tegra20.c

@@ -43,12 +43,19 @@ static atomic_t abort_barrier;
 static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
 				    struct cpuidle_driver *drv,
 				    int index);
+#define TEGRA20_MAX_STATES 2
+#else
+#define TEGRA20_MAX_STATES 1
 #endif
 
-static struct cpuidle_state tegra_idle_states[] = {
-	[0] = ARM_CPUIDLE_WFI_STATE_PWR(600),
+static struct cpuidle_driver tegra_idle_driver = {
+	.name = "tegra_idle",
+	.owner = THIS_MODULE,
+	.en_core_tk_irqen = 1,
+	.states = {
+		ARM_CPUIDLE_WFI_STATE_PWR(600),
 #ifdef CONFIG_PM_SLEEP
-	[1] = {
+		{
 			.enter            = tegra20_idle_lp2_coupled,
 			.exit_latency     = 5000,
 			.target_residency = 10000,
@@ -59,12 +66,9 @@ static struct cpuidle_state tegra_idle_states[] = {
 			.desc             = "CPU power gated",
 		},
 #endif
-};
-
-static struct cpuidle_driver tegra_idle_driver = {
-	.name = "tegra_idle",
-	.owner = THIS_MODULE,
-	.en_core_tk_irqen = 1,
+	},
+	.state_count = TEGRA20_MAX_STATES,
+	.safe_state_index = 0,
 };
 
 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;
 #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);
 	if (ret) {
 		pr_err("CPUidle driver registration failed\n");