On 24-11-15, 14:55, Jia Hongtao wrote: > + /* Register CPU cooling device for QorIQ platform */ > + for_each_node_with_property(cpu_np, "#cooling-cells") { > + of_property_read_u32(cpu_np, "reg", &cpu_id); > + cpufreq_get_policy(&cpu_policy, cpu_id); That's not the right way to do it. You already have DT node for the CPU, look at how it is done from ->ready() callback for cpufreq-dt. -- viresh -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html