heathrow_sound_enable 1934 arch/powerpc/platforms/powermac/feature.c { PMAC_FTR_SOUND_CHIP_ENABLE, heathrow_sound_enable }, heathrow_sound_enable 1950 arch/powerpc/platforms/powermac/feature.c { PMAC_FTR_SOUND_CHIP_ENABLE, heathrow_sound_enable },