[PATCH 3/3] ASoC: codecs: wsa884x: check if set_stream is called for proper bus

[Krzysztof Kozlowski]

From: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>

If multiple WSA8840 speakers, from two separate Soundwire buses, are
used in one codec DAI link, the set_stream() should ignore calls for
setting stream from other Soundwire controller.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@xxxxxxxxxx>
Co-developed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
 sound/soc/codecs/wsa884x.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/codecs/wsa884x.c b/sound/soc/codecs/wsa884x.c
index bee6e763c700..91205e8c96f1 100644
--- a/sound/soc/codecs/wsa884x.c
+++ b/sound/soc/codecs/wsa884x.c
@@ -1775,6 +1775,12 @@ static int wsa884x_set_stream(struct snd_soc_dai *dai,
 			      void *stream, int direction)
 {
 	struct wsa884x_priv *wsa884x = dev_get_drvdata(dai->dev);
+	struct sdw_stream_runtime *sruntime = stream;
+	struct sdw_slave *sdw = dev_to_sdw_dev(dai->dev);
+
+	/* Check if this belongs to same bus */
+	if (sdw->bus->dev != sruntime->dev)
+		return 0;
 
 	wsa884x->sruntime = stream;
 
-- 
2.34.1