usMemoryClock    8982 drivers/gpu/drm/amd/include/atombios.h   USHORT    usMemoryClock;
usMemoryClock    7677 drivers/gpu/drm/radeon/atombios.h   USHORT    usMemoryClock;
usMemoryClock    2149 drivers/gpu/drm/radeon/radeon_atombios.c 				le16_to_cpu(power_info->info.asPowerPlayInfo[i].usMemoryClock);