diff options
| author | Peter Ujfalusi <peter.ujfalusi@linux.intel.com> | 2025-12-15 15:29:41 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2025-12-15 23:07:41 +0900 |
| commit | c3e1549811747e4b4ff7e4bba691980d9dab2d9e (patch) | |
| tree | 6ee492dbc70fa03d0123fe84a994c168cb5e03fc /include | |
| parent | 2c77ff200f59103ecdee60c00818a43cee38a6b8 (diff) | |
ASoC: SOF: Add support for on-demand DSP boot
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 <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Link: https://patch.msgid.link/20251215132946.2155-4-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sound/sof.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/sof.h b/include/sound/sof.h index eddea82c7b5a..38d6c8cb5e83 100644 --- a/include/sound/sof.h +++ b/include/sound/sof.h @@ -159,6 +159,9 @@ struct sof_dev_desc { /* The platform supports DSPless mode */ bool dspless_mode_supported; + /* On demand DSP booting is possible on the platform */ + bool on_demand_dsp_boot; + /* defaults paths for firmware, library and topology files */ const char *default_fw_path[SOF_IPC_TYPE_COUNT]; const char *default_lib_path[SOF_IPC_TYPE_COUNT]; |