kernel/linux.git/sound/soc/sof/control.c, branch v7.0-rc7

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: control: skip rpm calls in ext_volatile_get if not implemented

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

Test earlier for the existence of ext_volatile_get callback and if it is missing, skip the rpm calls to avoid needles DSP power on. No change in functionality, we just skip the DSP power on in the unlikely case when the ext_volatile _get is not supported and yet the topology adds such control. Signed-off-by: Peter Ujfalusi Reviewed-by: Bard Liao Reviewed-by: Kai Vehmanen Reviewed-by: Liam Girdwood Link: https://patch.msgid.link/20251215132946.2155-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

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: Intel: clarify Copyright information

2024-05-06T14:59:35+00:00

For some reason a number of files included the "All rights reserved" statement. Good old copy-paste made sure this mistake proliferated. Remove the "All rights reserved" in all Intel-copyright to align with internal guidance. Reviewed-by: Cezary Rojewski Signed-off-by: Pierre-Louis Bossart Reviewed-by: Bard Liao Reviewed-by: Péter Ujfalusi Link: https://lore.kernel.org/r/20240503140359.259762-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: control: Extend the optionality of IPC ops to IPC as well

2022-12-25T23:32:33+00:00

The IPC ops are optional, but they require that the ops struct is to be allocated with all callbacks set to NULL. Update the code to extend the optionality to: sdev->ipc == NULL sdev->ipc->ops == NULL sdev->ipc->ops->[tplg] == NULL sdev->ipc->ops->[tplg]->control == NULL sdev->ipc->ops->[tplg]->control->ops == NULL (treated optional currently) Signed-off-by: Peter Ujfalusi Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Bard Liao Reviewed-by: Rander Wang Link: https://lore.kernel.org/r/20221221102328.9635-6-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: control: use pm_runtime_resume_and_get()

2022-04-27T13:15:24+00:00

Use pm_runtime_resume_and_get() to replace the pm_runtime_get_sync() and pm_runtime_put_noidle() pattern. No functional changes. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Péter Ujfalusi Reviewed-by: Bard Liao Link: https://lore.kernel.org/r/20220426184106.102636-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: topology: use new sound control LED layer

2022-04-05T09:22:55+00:00

Use the new sound control LED layer instead the direct ledtrig_audio_set() call - see 22d8de62f11b ("ALSA: control - add generic LED trigger module as the new control layer"). Signed-off-by: Jaroslav Kysela Cc: Bard Liao Cc: Pierre-Louis Bossart Reviewed-by: Peter Ujfalusi Reviewed-by: Ranjani Sridharan Link: https://lore.kernel.org/r/20220329120039.2394138-1-perex@perex.cz Signed-off-by: Mark Brown

ASoC: SOF: Add bytes_ext control IPC ops for IPC3

2022-03-18T16:04:44+00:00

Define and set the get/put/volatile_get control IPC ops for byte controls for IPC3. Signed-off-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20220317175044.1752400-11-ranjani.sridharan@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Add bytes_get/put control IPC ops for IPC3

2022-03-18T16:04:43+00:00

Define and set the bytes_get/put IPC control ops for IPC3. Signed-off-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20220317175044.1752400-10-ranjani.sridharan@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: Add enum_get/put control ops for IPC3

2022-03-18T16:04:42+00:00

Define and set the enum_get/put control IPC ops for IPC3. Signed-off-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Reviewed-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20220317175044.1752400-9-ranjani.sridharan@linux.intel.com Signed-off-by: Mark Brown