From:   Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To:     broonie@kernel.org
Cc:     lgirdwood@gmail.com, perex@perex.cz, tiwai@suse.com,
        alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
        steev@kali.org, johan+linaro@kernel.org, quic_bjorande@quicinc.com,
        Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH 1/8] ASoC: qcom: q6apm-lpass-dai: unprepare stream if its already prepared
Date:   Thu,  9 Feb 2023 12:27:59 +0000
Message-Id: <20230209122806.18923-2-srinivas.kandagatla@linaro.org>
In-Reply-To: <20230209122806.18923-1-srinivas.kandagatla@linaro.org>
References: <20230209122806.18923-1-srinivas.kandagatla@linaro.org>
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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>
---
 sound/soc/qcom/qdsp6/q6apm-lpass-dais.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c
index ce9e5646d8f3..23d23bc6fbaa 100644
--- 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
-- 
2.21.0