C++ (Cpp) cpu_init_idle Examples

Example #1

File: cpuidle-mt8173.c Project: PixNDom/android_kernel_mediatek

/*
 * arm64_idle_init
 *
 * Registers the arm64 specific cpuidle driver with the cpuidle
 * framework. It relies on core code to parse the idle states
 * and initialize them using driver data structures accordingly.
 */
int __init mt8173_cpuidle_init(void)
{
	int cpu, ret;
	struct cpuidle_driver *drv = &mt8173_cpuidle_driver;

	/*
	 * Call arch CPU operations in order to initialize
	 * idle states suspend back-end specific data
	 */
	for_each_possible_cpu(cpu) {
		ret = cpu_init_idle(cpu);
		if (ret) {
			pr_err("CPU %d failed to init idle CPU ops\n", cpu);
			return ret;
		}
	}

	ret = cpuidle_register(drv, NULL);
	if (ret) {
		pr_err("failed to register cpuidle driver\n");
		return ret;
	}

	return 0;
}

Example #2

File: cpuidle-arm64.c Project: 3null/linux

/*
 * arm64_idle_init
 *
 * Registers the arm64 specific cpuidle driver with the cpuidle
 * framework. It relies on core code to parse the idle states
 * and initialize them using driver data structures accordingly.
 */
static int __init arm64_idle_init(void)
{
	int cpu, ret;
	struct cpuidle_driver *drv = &arm64_idle_driver;

	/*
	 * Initialize idle states data, starting at index 1.
	 * This driver is DT only, if no DT idle states are detected (ret == 0)
	 * let the driver initialization fail accordingly since there is no
	 * reason to initialize the idle driver if only wfi is supported.
	 */
	ret = dt_init_idle_driver(drv, arm64_idle_state_match, 1);
	if (ret <= 0) {
		if (ret)
			pr_err("failed to initialize idle states\n");
		return ret ? : -ENODEV;
	}

	/*
	 * Call arch CPU operations in order to initialize
	 * idle states suspend back-end specific data
	 */
	for_each_possible_cpu(cpu) {
		ret = cpu_init_idle(cpu);
		if (ret) {
			pr_err("CPU %d failed to init idle CPU ops\n", cpu);
			return ret;
		}
	}

	ret = cpuidle_register(drv, NULL);
	if (ret) {
		pr_err("failed to register cpuidle driver\n");
		return ret;
	}

	return 0;
}