mmACP_SCRATCH_REG_40 457 sound/soc/amd/include/acp_2_2_d.h #define mmACP_SCRATCH_REG_40 0x52e8 mmACP_SCRATCH_REG_40 194 sound/soc/amd/raven/chip_offset_byte.h #define mmACP_SCRATCH_REG_40 0x12500A0