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| author | Peter Ujfalusi <peter.ujfalusi@linux.intel.com> | 2023-04-04 12:21:06 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-04-04 12:42:34 +0100 |
| commit | 28d40e7adfd4108c11c9397c6fe9d9f80fed31e9 (patch) | |
| tree | 18d161fc1246c7b0e3261945d0cee7f92561463b /sound/soc/sof/core.c | |
| parent | 59611370f92923089ceb284072d01445164a0191 (diff) | |
| download | lwn-28d40e7adfd4108c11c9397c6fe9d9f80fed31e9.tar.gz lwn-28d40e7adfd4108c11c9397c6fe9d9f80fed31e9.zip | |
ASoC: SOF: Add support for DSPless mode
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 <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Link: https://lore.kernel.org/r/20230404092115.27949-4-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/core.c')
| -rw-r--r-- | sound/soc/sof/core.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c index 06bcae631612..9a9d82220fd0 100644 --- a/sound/soc/sof/core.c +++ b/sound/soc/sof/core.c @@ -208,6 +208,11 @@ static int sof_probe_continue(struct snd_sof_dev *sdev) /* set up platform component driver */ snd_sof_new_platform_drv(sdev); + if (sdev->dspless_mode_selected) { + sof_set_fw_state(sdev, SOF_DSPLESS_MODE); + goto skip_dsp_init; + } + /* register any debug/trace capabilities */ ret = snd_sof_dbg_init(sdev); if (ret < 0) { @@ -266,6 +271,7 @@ static int sof_probe_continue(struct snd_sof_dev *sdev) dev_dbg(sdev->dev, "SOF firmware trace disabled\n"); } +skip_dsp_init: /* hereafter all FW boot flows are for PM reasons */ sdev->first_boot = false; @@ -387,12 +393,18 @@ int snd_sof_device_probe(struct device *dev, struct snd_sof_pdata *plat_data) return ret; /* check all mandatory ops */ - if (!sof_ops(sdev) || !sof_ops(sdev)->probe || !sof_ops(sdev)->run || - !sof_ops(sdev)->block_read || !sof_ops(sdev)->block_write || - !sof_ops(sdev)->send_msg || !sof_ops(sdev)->load_firmware || - !sof_ops(sdev)->ipc_msg_data) { + if (!sof_ops(sdev) || !sof_ops(sdev)->probe) { + sof_ops_free(sdev); + dev_err(dev, "missing mandatory ops\n"); + return -EINVAL; + } + + if (!sdev->dspless_mode_selected && + (!sof_ops(sdev)->run || !sof_ops(sdev)->block_read || + !sof_ops(sdev)->block_write || !sof_ops(sdev)->send_msg || + !sof_ops(sdev)->load_firmware || !sof_ops(sdev)->ipc_msg_data)) { sof_ops_free(sdev); - dev_err(dev, "error: missing mandatory ops\n"); + dev_err(dev, "missing mandatory DSP ops\n"); return -EINVAL; } |