[PATCH 1/3] ASoC: SOF: Intel: discard SoundWire configuration if HDaudio codec is reported

[Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>]

The machine driver and topology selection starts with I2S, then
SoundWire and last uses HDaudio as a fallback. That assumes that the
ACPI information is correct but there are of course exceptions to the
rule.

On a Lenovo platform, an external HDaudio codec is detected, but the
ACPI tables expose TWO RT711 jack codecs. This patch skips the
SoundWire selection in case an external HDaudio codec is detected -
which only works with the additional assumption that no one will mix
HDaudio and SoundWire.

Closes: https://github.com/thesofproject/linux/issues/4962
Reviewed-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Reviewed-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
 sound/soc/sof/intel/hda.c | 9 +++++++--
 sound/soc/sof/intel/hda.h | 2 ++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
index 8ac8c10b83bd..d4f039ed4ad4 100644
--- a/sound/soc/sof/intel/hda.c
+++ b/sound/soc/sof/intel/hda.c
@@ -1809,6 +1809,7 @@ struct snd_soc_acpi_mach *hda_machine_select(struct snd_sof_dev *sdev)
 	u32 interface_mask = hda_get_interface_mask(sdev);
 	struct snd_sof_pdata *sof_pdata = sdev->pdata;
 	const struct sof_dev_desc *desc = sof_pdata->desc;
+	struct hdac_bus *bus = sof_to_bus(sdev);
 	struct snd_soc_acpi_mach *mach = NULL;
 	enum snd_soc_acpi_intel_codec codec_type;
 	const char *tplg_filename;
@@ -1981,8 +1982,12 @@ struct snd_soc_acpi_mach *hda_machine_select(struct snd_sof_dev *sdev)
 		}
 	}
 
-	/* If I2S fails, try SoundWire if it is supported */
-	if (!mach && (interface_mask & BIT(SOF_DAI_INTEL_ALH)))
+	/*
+	 * If I2S fails and no external HDaudio codec is detected,
+	 * try SoundWire if it is supported
+	 */
+	if (!mach && !HDA_EXT_CODEC(bus->codec_mask) &&
+	    (interface_mask & BIT(SOF_DAI_INTEL_ALH)))
 		mach = hda_sdw_machine_select(sdev);
 
 	/*
diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h
index 7804c5b50c26..8b495264f23d 100644
--- a/sound/soc/sof/intel/hda.h
+++ b/sound/soc/sof/intel/hda.h
@@ -454,6 +454,8 @@
 #define SSP_SET_SFRM_CONSUMER	BIT(24)
 #define SSP_SET_CBP_CFP		(SSP_SET_SCLK_CONSUMER | SSP_SET_SFRM_CONSUMER)
 
+#define HDA_EXT_ADDR		0
+#define HDA_EXT_CODEC(x) ((x) & BIT(HDA_EXT_ADDR))
 #define HDA_IDISP_ADDR		2
 #define HDA_IDISP_CODEC(x) ((x) & BIT(HDA_IDISP_ADDR))
 
-- 
2.40.1