cpufreq: exynos: Use simple approach to asses if cpu cooling can be used (0fc83929) · Commits · 戴 / test

drivers/cpufreq/exynos-cpufreq.c

+6 −15

Original line number	Diff line number	Diff line
		@@ -159,7 +159,7 @@ static struct cpufreq_driver exynos_driver = {

		static int exynos_cpufreq_probe(struct platform_device *pdev)
		{
		struct device_node cpus, np;
		struct device_node *cpu0;
		int ret = -EINVAL;

		exynos_info = kzalloc(sizeof(*exynos_info), GFP_KERNEL);
		@@ -206,28 +206,19 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
		if (ret)
		goto err_cpufreq_reg;

		cpus = of_find_node_by_path("/cpus");
		if (!cpus) {
		pr_err("failed to find cpus node\n");
		cpu0 = of_get_cpu_node(0, NULL);
		if (!cpu0) {
		pr_err("failed to find cpu0 node\n");
		return 0;
		}

		np = of_get_next_child(cpus, NULL);
		if (!np) {
		pr_err("failed to find cpus child node\n");
		of_node_put(cpus);
		return 0;
		}

		if (of_find_property(np, "#cooling-cells", NULL)) {
		cdev = of_cpufreq_cooling_register(np,
		if (of_find_property(cpu0, "#cooling-cells", NULL)) {
		cdev = of_cpufreq_cooling_register(cpu0,
		cpu_present_mask);
		if (IS_ERR(cdev))
		pr_err("running cpufreq without cooling device: %ld\n",
		PTR_ERR(cdev));
		}
		of_node_put(np);
		of_node_put(cpus);

		return 0;