these patches were originally submitted in the "ASoC: SOF: AMD/Mediatek updates" series, but there was a bisect issue on the first patch. sound/soc/sof/amd/acp.c:176:29: error: unused variable ‘sdev’ [-Werror=unused-variable] resubmitting as v2 with each patch compiling without warning. Ajit Kumar Pandey (2): ASoC: SOF: amd: Add psp_mbox_ready() and psp_send_cmd() callback ASoC: SOF: amd: Use dedicated MBOX for ACP and PSP communication sound/soc/sof/amd/acp.c | 66 ++++++++++++++++++++++++++++++++++++----- sound/soc/sof/amd/acp.h | 6 ++-- 2 files changed, 63 insertions(+), 9 deletions(-) -- 2.30.2