On 22 January 2014 11:56, Li, Zhuangzhi <zhuangzhi.li@xxxxxxxxx> wrote: > I don't think it's a real bug in bootloader, the bootloader can set CPUs to different frequencies according to actually requirements(Power saving first or Performance first), > the CPUs freq policy are initialized in kernel, if the kernel want to share one CPU policy(using CPUFREQ_SHARED_TYPE_ALL type), it should ensure all CPUs frequencies aligned first, > don't depend on the bootloader CPUs Pre-states, then the kernel can have better compatibility. > > If the kernel uses CPUFREQ_SHARED_TYPE_ALL policy, the patch can ensure these: > 1. If all CPUs are in the same P-state, it does nothing when cpufreq registering > 2. If the CPUs are in different P-states, all the other CPUs are aligned once to current frequency of CPU0 according to the present policy. I thought, as you are asking kernel to keep same freq on all of them, then same should be true for bootloaders. Otherwise it was okay. -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
