ASoC: qcom: q6apm-lpass-dai: unprepare stream if its already prepared

prepare callback can be called multiple times, so unprepare the stream
if its already prepared.

Without this DSP is not happy to setting the params on a already
prepared graph.

Fixes: 9b4fe0f1cd79 ("ASoC: qdsp6: audioreach: add q6apm-dai support")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230209122806.18923-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c
index ce9e5646d8f3a2de55e35944cc15263be46fbbb9..23d23bc6fbaa77888e2b74f4f8e67cacad4803a7 100644 (file)
--- a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c
+++ b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c
@@ -127,6 +127,11 @@ static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct s
        int graph_id = dai->id;
        int rc;
 
+       if (dai_data->is_port_started[dai->id]) {
+               q6apm_graph_stop(dai_data->graph[dai->id]);
+               dai_data->is_port_started[dai->id] = false;
+       }
+
        /**
         * It is recommend to load DSP with source graph first and then sink
         * graph, so sequence for playback and capture will be different