I2C_SPEED_FAST_400K  278 drivers/gpu/drm/amd/powerplay/inc/smu11_driver_if_arcturus.h   I2C_SPEED_FAST_400K,         //400 Kbits/s
I2C_SPEED_FAST_400K  285 drivers/gpu/drm/amd/powerplay/inc/smu11_driver_if_navi10.h   I2C_SPEED_FAST_400K,         //400 Kbits/s