[PATCH 11/12] ASoC: intel: sof_sdw: Allow different devices on the same link

[Charles Keepax <ckeepax@opensource.cirrus.com>]

If the current code encounters a new type of device on a SoundWire
link, it will abort processing that link and move onto the next
link. However, there is no reason to disallow this setup, it would
appear this was being disallowed to work around issues introduced
by only the first endpoint on each link being checked, which is now
fixed.

The device type shouldn't determine which DAI link it is connected to,
the group ID and aggregation status should.

Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---
 sound/soc/intel/boards/sof_sdw.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index 357946365e76f..296de5baee3d2 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -1163,10 +1163,15 @@ static bool is_unique_device(const struct snd_soc_acpi_link_adr *adr_link,
 static int fill_sdw_codec_dlc(struct device *dev,
 			      const struct snd_soc_acpi_link_adr *adr_link,
 			      struct snd_soc_dai_link_component *codec,
-			      int codec_index, int adr_index, int dai_index)
+			      int adr_index, int dai_index)
 {
 	unsigned int sdw_version, unique_id, mfg_id, link_id, part_id, class_id;
 	u64 adr = adr_link->adr_d[adr_index].adr;
+	int codec_index;
+
+	codec_index = find_codec_info_part(adr);
+	if (codec_index < 0)
+		return codec_index;
 
 	sdw_version = SDW_VERSION(adr);
 	link_id = SDW_DISCO_LINK_ID(adr);
@@ -1368,8 +1373,6 @@ static int create_sdw_dailink(struct snd_soc_card *card, int *link_index,
 	j = adr_index;
 	for (adr_link_next = adr_link; adr_link_next && adr_link_next->num_adr &&
 	     i < cpu_dai_num; adr_link_next++) {
-		int _codec_index = -1;
-
 		/* skip the link excluded by this processed group */
 		if (cpu_dai_id[i] != ffs(adr_link_next->mask) - 1)
 			continue;
@@ -1377,17 +1380,6 @@ static int create_sdw_dailink(struct snd_soc_card *card, int *link_index,
 		/* j reset after loop, adr_index only applies to first link */
 		for (; j < adr_link_next->num_adr; j++) {
 			const struct snd_soc_acpi_endpoint *endpoints;
-			int codec_index;
-			u64 adr = adr_link_next->adr_d[j].adr;
-
-			codec_index = find_codec_info_part(adr);
-			if (codec_index < 0)
-				return codec_index;
-			if (_codec_index != -1 && codec_index != _codec_index) {
-				dev_dbg(dev, "Different devices on the same sdw link\n");
-				break;
-			}
-			_codec_index = codec_index;
 
 			endpoints = adr_link_next->adr_d[j].endpoints;
 
@@ -1403,7 +1395,7 @@ static int create_sdw_dailink(struct snd_soc_card *card, int *link_index,
 
 			ret = fill_sdw_codec_dlc(dev, adr_link_next,
 						 &codecs[codec_dlc_index],
-						 codec_index, j, dai_index);
+						 j, dai_index);
 			if (ret)
 				return ret;
 
-- 
2.30.2