mmACP_SCRATCH_REG_21 438 sound/soc/amd/include/acp_2_2_d.h #define mmACP_SCRATCH_REG_21 0x52d5 mmACP_SCRATCH_REG_21 175 sound/soc/amd/raven/chip_offset_byte.h #define mmACP_SCRATCH_REG_21 0x1250054