Hi, This series will extend the IPC ops optionality to cover it up to the existence of the top level ipc pointer itself. There is no functionality change. The reason for the extended optionality is that we have "DSPless" debug/development support coming up (currently it is in SOF's topic/sof-dev stable branch) initially supporting Intel's HDA platforms. As the name suggests, in this mode the DSP is completely ignored by the linux driver stack (no firmware loaded, only using HDA directly). The DSPless mode is aimed to help us to verify our Linux stack on new platforms where the firmware is not yet in the state that we can reliably use it, but the hardware and programming flows can be tested already. There is no plan to make DSPless a production target for SOF Linux stack. While this is preparatory series aimed to unblock the DSPless support, it has been integrated into sof-dev separately and we have lots of new features depending on it (went in between this set and the DSPless support). I still have some minor tasks to complete for the DSPless to make it a bit more versatile, but I don't want to block other, stable features for upstreaming. Regards, Peter --- Peter Ujfalusi (11): ASoC: SOF: sof-audio: Treat tplg_ops->route_setup() as optional ASoC: SOF: sof-audio: Update documentation for sof_ipc_tplg_ops ASoC: SOF: Add helper macro to be used to get an IPC ops ASoC: SOF: pcm: Extend the optionality of IPC ops to IPC as well ASoC: SOF: control: Extend the optionality of IPC ops to IPC as well ASoC: SOF: sof-audio: Extend the optionality of IPC ops to IPC as well ASoC: SOF: topology: Extend the optionality of IPC ops to IPC as well ASoC: SOF: pm: Extend the optionality of IPC ops to IPC as well ASoC: SOF: sof-priv: Mark fw_tracing ops optional in documentation ASoC: SOF: trace: Use sof_ipc_get_ops() in sof_fw_trace_init ASoC: SOF: trace: No need to check for op pointer in sof_fw_trace_free() sound/soc/sof/control.c | 44 +++++++++---------- sound/soc/sof/pcm.c | 18 ++++---- sound/soc/sof/pm.c | 12 +++--- sound/soc/sof/sof-audio.c | 57 +++++++++++++----------- sound/soc/sof/sof-audio.h | 6 ++- sound/soc/sof/sof-priv.h | 6 ++- sound/soc/sof/topology.c | 91 +++++++++++++++++++++++---------------- sound/soc/sof/trace.c | 8 ++-- 8 files changed, 138 insertions(+), 104 deletions(-) -- 2.39.0