On 01-11-19, 16:08, Roger Lu wrote: > I've studied opp/core.c and still don't know meaning of triplet here. > Could you give me more hints (reference API?) about how to take a > triplet instead? Thanks in advance. I was hoping you to follow this thread :) https://lore.kernel.org/linux-arm-kernel/20191016145756.16004-2-s.nawrocki@xxxxxxxxxxx/ I already applied this patch to the OPP tree. -- viresh