diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2021-07-26 13:28:55 -0500 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-07-27 13:13:05 +0100 |
| commit | 61bef9e68dca4316e1fc5fdf5f0c270bdbd65657 (patch) | |
| tree | 420e5bff04e064e6380d99f6b792289e09441b59 /sound | |
| parent | 2635c226036c1bf44b86575d0bc721505c8201e3 (diff) | |
| download | linux-61bef9e68dca4316e1fc5fdf5f0c270bdbd65657.tar.bz2 | |
ASoC: SOF: Intel: hda: enforce exclusion between HDaudio and SoundWire
On some platforms with an external HDaudio codec, the DSDT reports the
presence of SoundWire devices. Pin-mux restrictions and board reworks
usually prevent coexistence between the two types of links, let's
prevent unnecessary operations from starting.
In the case of a single iDISP codec being detected, we still start the
links even if no SoundWire machine configuration was detected, so that
we can double-check what the hardware is and add the missing
configuration if applicable.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <bard.liao@intel.com>
Link: https://lore.kernel.org/r/20210726182855.179943-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/sof/intel/hda.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c index e1e368ff2b12..891e6e1b9121 100644 --- a/sound/soc/sof/intel/hda.c +++ b/sound/soc/sof/intel/hda.c @@ -187,12 +187,16 @@ static int hda_sdw_probe(struct snd_sof_dev *sdev) int hda_sdw_startup(struct snd_sof_dev *sdev) { struct sof_intel_hda_dev *hdev; + struct snd_sof_pdata *pdata = sdev->pdata; hdev = sdev->pdata->hw_pdata; if (!hdev->sdw) return 0; + if (pdata->machine && !pdata->machine->mach_params.link_mask) + return 0; + return sdw_intel_startup(hdev->sdw); } @@ -1002,6 +1006,14 @@ static int hda_generic_machine_select(struct snd_sof_dev *sdev) hda_mach->mach_params.dmic_num = dmic_num; pdata->machine = hda_mach; pdata->tplg_filename = tplg_filename; + + if (codec_num == 2) { + /* + * Prevent SoundWire links from starting when an external + * HDaudio codec is used + */ + hda_mach->mach_params.link_mask = 0; + } } } |