From 80c7d74ecee6d3fc6f62e8148509c57441a90401 Mon Sep 17 00:00:00 2001 From: Karthik S Date: Thu, 16 Apr 2026 11:34:44 +0530 Subject: [PATCH] FROMLIST: ASoC: qcom: q6apm-lpass-dai: move graph start to trigger Start the graph at trigger callback. Staring the graph at prepare does not make sense as there is no data transfer at this point. Moving this to trigger will also help cope situation where pipewire is not happy if display port is not connected during start. Link: https://lore.kernel.org/all/20260402081118.348071-12-srinivas.kandagatla@oss.qualcomm.com/ Signed-off-by: Srinivas Kandagatla Signed-off-by: Karthik S --- sound/soc/qcom/qdsp6/q6apm-lpass-dais.c | 40 +++++++++++++++++-------- 1 file changed, 28 insertions(+), 12 deletions(-) diff --git a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c index 5be37eeea329f..1cd8774f245ca 100644 --- a/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c +++ b/sound/soc/qcom/qdsp6/q6apm-lpass-dais.c @@ -159,6 +159,31 @@ static void q6apm_lpass_dai_shutdown(struct snd_pcm_substream *substream, struct } } +static int q6apm_lpass_dai_trigger(struct snd_pcm_substream *substream, int cmd, + struct snd_soc_dai *dai) +{ + struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); + int ret = 0; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + case SNDRV_PCM_TRIGGER_RESUME: + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + if (!dai_data->is_port_started[dai->id]) { + ret = q6apm_graph_start(dai_data->graph[dai->id]); + if (ret < 0) + dev_err(dai->dev, "Failed to start APM port %d\n", dai->id); + else + dai_data->is_port_started[dai->id] = true; + } + break; + default: + break; + } + + return ret; +} + static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct q6apm_lpass_dai_data *dai_data = dev_get_drvdata(dai->dev); @@ -171,10 +196,6 @@ static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct s q6apm_graph_stop(dai_data->graph[dai->id]); dai_data->is_port_started[dai->id] = false; - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { - q6apm_graph_close(dai_data->graph[dai->id]); - dai_data->graph[dai->id] = NULL; - } } /** @@ -203,14 +224,6 @@ static int q6apm_lpass_dai_prepare(struct snd_pcm_substream *substream, struct s dev_err(dai->dev, "Failed to prepare Graph %d\n", rc); goto err; } - - rc = q6apm_graph_start(dai_data->graph[dai->id]); - if (rc < 0) { - dev_err(dai->dev, "Failed to start APM port %d\n", dai->id); - goto err; - } - dai_data->is_port_started[dai->id] = true; - return 0; err: if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { @@ -254,6 +267,7 @@ static const struct snd_soc_dai_ops q6dma_ops = { .shutdown = q6apm_lpass_dai_shutdown, .set_channel_map = q6dma_set_channel_map, .hw_params = q6dma_hw_params, + .trigger = q6apm_lpass_dai_trigger, }; static const struct snd_soc_dai_ops q6i2s_ops = { @@ -263,6 +277,7 @@ static const struct snd_soc_dai_ops q6i2s_ops = { .set_channel_map = q6dma_set_channel_map, .hw_params = q6dma_hw_params, .set_fmt = q6i2s_set_fmt, + .trigger = q6apm_lpass_dai_trigger, }; static const struct snd_soc_dai_ops q6hdmi_ops = { @@ -271,6 +286,7 @@ static const struct snd_soc_dai_ops q6hdmi_ops = { .shutdown = q6apm_lpass_dai_shutdown, .hw_params = q6hdmi_hw_params, .set_fmt = q6i2s_set_fmt, + .trigger = q6apm_lpass_dai_trigger, }; static const struct snd_soc_component_driver q6apm_lpass_dai_component = {