mmACP_SMU_MAILBOX 277 sound/soc/amd/include/acp_2_2_d.h #define mmACP_SMU_MAILBOX 0x5137 mmACP_SMU_MAILBOX 115 sound/soc/amd/raven/chip_offset_byte.h #define mmACP_SMU_MAILBOX 0x1241820