ASoC: SOF: pm: Remove duplicated code in sof_suspend

2023-06-16T11:53:53+00:00

Over time the function has changed and now there is no need to have the duplicated sof_fw_trace_suspend() and sof_suspend_clients() in the if (target_state == SOF_DSP_PM_D0) branch. Remove it and add a simple check with a single goto statement. Reviewed-by: Daniel Baluta Reviewed-by: Paul Olaru Reviewed-by: Ranjani Sridharan Signed-off-by: Peter Ujfalusi Signed-off-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20230616100039.378150-8-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pm: save io region state in case of errors in resume

2023-05-15T01:21:14+00:00

If there are failures in DSP runtime resume, the device state will not reach active and this makes it impossible e.g. to retrieve a possible DSP panic dump via "exception" debugfs node. If CONFIG_SND_SOC_SOF_DEBUG_ENABLE_DEBUGFS_CACHE=y is set, the data in cache is stale. If debugfs cache is not used, the region simply cannot be read. To allow debugging these scenarios, update the debugfs cache contents in resume error handler. User-space can then later retrieve DSP panic and other state via debugfs (requires SOF debugfs cache to be enabled in build). Reported-by: Curtis Malainey

Merge tag 'sound-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2023-04-27T17:58:37+00:00

Pull sound updates from Takashi Iwai: "At this time, it's an interesting mixture of changes for both old and new stuff. Majority of changes are about ASoC (lots of systematic changes for converting remove callbacks to void, and cleanups), while we got the fixes and the enhancements of very old PCI cards, too. Here are some highlights: ALSA/ASoC Core: - Continued effort of more ASoC core cleanups - Minor improvements for XRUN handling in indirect PCM helpers - Code refactoring of PCM core code ASoC: - Continued feature and simplification work on SOF, including addition of a no-DSP mode for bringup, HDA MLink and extensions to the IPC4 protocol - Hibernation support for CS35L45 - More DT binding conversions - Support for Cirrus Logic CS35L56, Freescale QMC, Maxim MAX98363, nVidia systems with MAX9809x and RT5631, Realtek RT712, Renesas R-Car Gen4, Rockchip RK3588 and TI TAS5733 ALSA: - Lots of works for legacy emu10k1 and ymfpci PCI drivers - PCM kselftest fixes and enhancements" * tag 'sound-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (586 commits) ALSA: emu10k1: use high-level I/O in set_filterQ() ALSA: emu10k1: use high-level I/O functions also during init ALSA: emu10k1: fix error handling in snd_audigy_i2c_volume_put() ALSA: emu10k1: don't stop DSP in _snd_emu10k1_{,audigy_}init_efx() ALSA: emu10k1: fix SNDRV_EMU10K1_IOCTL_SINGLE_STEP ALSA: emu10k1: skip Sound Blaster-specific hacks for E-MU cards ALSA: emu10k1: fixup DSP defines ALSA: emu10k1: pull in some register definitions from kX-project ALSA: emu10k1: remove some bogus defines ALSA: emu10k1: eliminate some unused defines ALSA: emu10k1: fix lineup of EMU_HANA_* defines ALSA: emu10k1: comment updates ALSA: emu10k1: fix snd_emu1010_fpga_read() input masking for rev2 cards ALSA: emu10k1: remove unused emu->pcm_playback_efx_substream field ALSA: emu10k1: remove unused `resume` parameter from snd_emu10k1_init() ALSA: emu10k1: minor optimizations ALSA: emu10k1: remove remaining cruft from snd_emu10k1_emu1010_init() ALSA: emu10k1: remove apparently pointless EMU_HANA_OPTION_CARDS reads ALSA: emu10k1: remove apparently pointless FPGA reads ALSA: emu10k1: stop doing weird things with HCFG in snd_emu10k1_emu1010_init() ...

ASoC: SOF: pm: Tear down pipelines only if DSP was active

2023-04-05T10:39:51+00:00

With PCI if the device was suspended it is brought back to full power and then suspended again. This doesn't happen when device is described via DT. We need to make sure that we tear down pipelines only if the device was previously active (thus the pipelines were setup). Otherwise, we can break the use_count: [ 219.009743] sof-audio-of-imx8m 3b6e8000.dsp: sof_ipc3_tear_down_all_pipelines: widget PIPELINE.2.SAI3.IN is still in use: count -1 and after this everything stops working. Fixes: d185e0689abc ("ASoC: SOF: pm: Always tear down pipelines before DSP suspend") Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Signed-off-by: Daniel Baluta Link: https://lore.kernel.org/r/20230405092655.19587-1-daniel.baluta@oss.nxp.com Signed-off-by: Mark Brown

ASoC: SOF: Add support for DSPless mode

2023-04-04T11:42:34+00:00

Via the SOF_DBG_DSPLESS_MODE sof_debug flag the SOF stack can be asked to not use the DSP for audio. The core's support for DSPless mode is only going to be enabled if the platform reports that it can be used without DSP. Signed-off-by: Peter Ujfalusi Reviewed-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Rander Wang Link: https://lore.kernel.org/r/20230404092115.27949-4-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: Merge up 6.2 fixes

2023-01-18T15:33:51+00:00

To resolve a conflict and support further development.

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

2022-12-25T23:32:36+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->[pm/tplg] == NULL (treated optional for pm currently) sdev->ipc->ops->[pm/tplg]->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/20221221102328.9635-9-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pm: Always tear down pipelines before DSP suspend

2022-12-21T12:11:50+00:00

When the DSP is suspended while the firmware is in the crashed state, we skip tearing down the pipelines. This means that the widget reference counts will not get to reset to 0 before suspend. This will lead to errors with resuming audio after system resume. To fix this, invoke the tear_down_all_pipelines op before skipping to DSP suspend. Signed-off-by: Ranjani Sridharan Reviewed-by: Curtis Malainey Reviewed-by: Pierre-Louis Bossart Reviewed-by: Bard Liao Reviewed-by: Péter Ujfalusi Signed-off-by: Peter Ujfalusi Link: https://lore.kernel.org/r/20221220125629.8469-3-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pm: Set target state earlier

2022-12-21T12:11:49+00:00

If the DSP crashes before the system suspends, the setting of target state will be skipped because the firmware state will no longer be SOF_FW_BOOT_COMPLETE. This leads to the incorrect assumption that the DSP should suspend to D0I3 instead of suspending to D3. To fix this, set the target_state before we skip to DSP suspend even when the DSP has crashed. Signed-off-by: Ranjani Sridharan Reviewed-by: Curtis Malainey Reviewed-by: Pierre-Louis Bossart Reviewed-by: Bard Liao Reviewed-by: Péter Ujfalusi Signed-off-by: Peter Ujfalusi Link: https://lore.kernel.org/r/20221220125629.8469-2-peter.ujfalusi@linux.intel.com Signed-off-by: Mark Brown

ASoC: SOF: pm: add definitions for S4 and S5 states

2022-06-24T15:21:50+00:00

We currently don't have a means to differentiate between S3, S4 and S5. Add definitions so that we have select different code paths depending on the target state in follow-up patches. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Ranjani Sridharan Reviewed-by: Péter Ujfalusi Link: https://lore.kernel.org/r/20220616201818.130802-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown

kernel/linux.git/sound/soc/sof/pm.c, branch v6.6.131