ASoC: SOF: Intel: fix SoundWire/HDaudio mutual exclusion

plbossart · broonie · commit f751b99255ca · 2023-06-07T12:37:19.000+01:00
The functionality described in Commit 61bef9e ("ASoC: SOF: Intel: hda: enforce exclusion between HDaudio and SoundWire") does not seem to be properly implemented with two issues that need to be corrected. a) The test used is incorrect when DisplayAudio codecs are not supported. b) Conversely when only Display Audio codecs can be found, we do want to start the SoundWire links, if any. That will help add the relevant topologies and machine descriptors, and identify cases where the SoundWire information in ACPI needs to be modified with a quirk. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://lore.kernel.org/r/20230606222529.57156-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
@@ -1368,12 +1368,22 @@ static void hda_generic_machine_select(struct snd_sof_dev *sdev,
 			hda_mach->mach_params.dmic_num = dmic_num;
 			pdata->tplg_filename = tplg_filename;
 
-			if (codec_num == 2) {
+			if (codec_num == 2 ||
+			    (codec_num == 1 && !HDA_IDISP_CODEC(bus->codec_mask))) {
 				/*
 				 * Prevent SoundWire links from starting when an external
 				 * HDaudio codec is used
 				 */
 				hda_mach->mach_params.link_mask = 0;
+			} else {
+				/*
+				 * Allow SoundWire links to start when no external HDaudio codec
+				 * was detected. This will not create a SoundWire card but
+				 * will help detect if any SoundWire codec reports as ATTACHED.
+				 */
+				struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
+
+				hda_mach->mach_params.link_mask = hdev->info.link_mask;
 			}
 
 			*mach = hda_mach;
