kernel/linux.git/sound/soc/sof/pcm.c, branch v7.0.10

ASoC: SOF: pcm: Split up widget prepare and setup

2026-02-04T13:26:02+00:00

Widgets are set up in 2 steps, first ipc_prepare followed by the actual IPC sent to the DSP to set up the widget. Split these 2 steps to do the ipc_prepare during hw_params and the setting up in the prepare callback. This will allow for future modifications to pipeline set up to be split up between the FE and BE DAI prepare ops. Signed-off-by: Ranjani Sridharan Reviewed-by: Bard Liao Reviewed-by: Péter Ujfalusi Reviewed-by: Liam Girdwood Signed-off-by: Peter Ujfalusi Link: https://patch.msgid.link/20260204081833.16630-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Add support for on-demand DSP boot

2025-12-15T14:07:41+00:00

On system suspend / resume we always power up the DSP and boot the firmware, which is not strictly needed as right after the firmware booted up we power the DSP down again on suspend and we also power it down after resume after some inactivity. Out of caution, add a new platform descriptor flag to enable on-demand DSP boot since this might not work without changes to platform code on certain platforms. With the on-demand dsp boot enabled we will not boot the DSP and firmware up on system or rpm resume, just enable audio subsystem since audio IPs, like HDA and SoundWire might be needed (codecs suspend/resume operation). Only boot up the DSP during the first hw_params() call when the DSP is really going to be needed. In this way we can handle the audio related use cases: normal audio use (rpm suspend/resume) system suspend/resume without active audio system suspend/resume with active audio system suspend/resume without active audio, and audio start before the rpm suspend timeout Add module option to force the on-demand DSP boot to allow it to be disabled or enabled without kernel change for testing. Signed-off-by: Peter Ujfalusi Reviewed-by: Bard Liao Reviewed-by: Kai Vehmanen Reviewed-by: Liam Girdwood Link: https://patch.msgid.link/20251215132946.2155-4-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pcm: Set the PCM device name for HDMI

2025-10-29T20:14:43+00:00

User space (alsa-lib) uses the PCM device name to detect HDMI devices, the name is expected to be in form of 'HDMI'++number. The PCM device name is not configured in ASoC, only the PCM id is set based on the loaded topology. Detect the HDMI PCM playback devices and configure the name to help user space to handle HDMI PCMs correctly. aplay -l | grep HDMI (Audio capable monitor connected) Before the change: card 0: sofhdadsp [sof-hda-dsp], device 3: HDMI1 (*) [] card 0: sofhdadsp [sof-hda-dsp], device 4: HDMI2 (*) [] card 0: sofhdadsp [sof-hda-dsp], device 5: HDMI3 (*) [] after the change: card 0: sofhdadsp [sof-hda-dsp], device 3: HDMI1 (*) [DELL P1917S] card 0: sofhdadsp [sof-hda-dsp], device 4: HDMI2 (*) [HDMI 2] card 0: sofhdadsp [sof-hda-dsp], device 5: HDMI3 (*) [HDMI 3] Signed-off-by: Peter Ujfalusi Reviewed-by: Bard Liao Reviewed-by: Kai Vehmanen Reviewed-by: Ranjani Sridharan Link: https://patch.msgid.link/20251029105134.1342-1-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

treewide: Remove redundant

2025-07-04T21:42:36+00:00

Merge series from Sakari Ailus : Late last year I posted a set to switch to __pm_runtime_mark_last_busy() and gradually get rid of explicit pm_runtime_mark_last_busy() calls in drivers, embedding them in the appropriate pm_runtime_*autosuspend*() calls. The overall feedback I got at the time was that this is an unnecessary intermediate step, and removing the pm_runtime_mark_last_busy() calls can be done after adding them to the relevant Runtime PM autosuspend related functions.

ASoC: SOF: Remove redundant pm_runtime_mark_last_busy() calls

2025-07-04T18:28:22+00:00

pm_runtime_put_autosuspend(), pm_runtime_put_sync_autosuspend(), pm_runtime_autosuspend() and pm_request_autosuspend() now include a call to pm_runtime_mark_last_busy(). Remove the now-reduntant explicit call to pm_runtime_mark_last_busy(). Signed-off-by: Sakari Ailus Acked-by: Peter Ujfalusi Link: https://patch.msgid.link/20250704075459.3222908-1-sakari.ailus@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pcm: Reverse check for prepared stream in sof_pcm_hw_params()

2025-06-19T23:21:16+00:00

Reduce the number of checks needed with the simple and most common audio sequence when the stream is started then stopped. If the stream has not been prepared there is no need to check if we have pcm_ops and pcm_ops->hw_free() callback as it does not matter. Signed-off-by: Peter Ujfalusi Reviewed-by: Bard Liao Reviewed-by: Ranjani Sridharan Link: https://patch.msgid.link/20250619104551.25912-1-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pcm: Remove local create_page_table() wrapper function

2025-06-19T23:21:14+00:00

The create_page_table() can be dropped and replaced with a direct call to snd_sof_create_page_table(). Signed-off-by: Peter Ujfalusi Reviewed-by: Bard Liao Reviewed-by: Ranjani Sridharan Link: https://patch.msgid.link/20250619104608.25947-1-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: Merge up fixes

2025-03-05T19:10:50+00:00

Merge branch 'for-6.14' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-6.15 to avoid a bunch of add/add conflicts.

ASoC: SOF: pcm: Add snd_sof_pcm specific wrappers for dev_dbg() and dev_err()

2025-02-06T11:25:43+00:00

Introduce spcm_dbg() and spcm_err() macros to provide consistent printing for debug and error messages which includes usable information in the print's prefix. Update the prints in pcm.c, ipc3-pcm.c and ipc4-pcm.c to take advantage of the features provided by the macros. Signed-off-by: Peter Ujfalusi Reviewed-by: Liam Girdwood Reviewed-by: Bard Liao Reviewed-by: Ranjani Sridharan Link: https://patch.msgid.link/20250206092828.7569-4-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pcm: Move period/buffer configuration print after platform open

2025-02-06T11:25:42+00:00

The platform specific pcm_open call via snd_sof_pcm_platform_open() can modify the initial buffer configuration via constraints. Move the prints as last step in the sof_pcm_open() function to reflect the final setup. Signed-off-by: Peter Ujfalusi Reviewed-by: Liam Girdwood Reviewed-by: Bard Liao Reviewed-by: Ranjani Sridharan Link: https://patch.msgid.link/20250206092828.7569-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown