On 1/16/20 2:26 PM, Bard liao wrote:
From: Shreyas NC <shreyas.nc@xxxxxxxxx>
DAPM handles DAIs during soc_dapm_stream_event() and during addition
and creation of DAI widgets i.e., dapm_add_valid_dai_widget() and
dapm_connect_dai_link_widgets().
Extend these functions to handle multiple cpu dai.
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Shreyas NC <shreyas.nc@xxxxxxxxx>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
Signed-off-by: Bard Liao <yung-chuan.liao@xxxxxxxxxxxxxxx>
---
sound/soc/soc-dapm.c | 131 +++++++++++++++++++++++++------------------
1 file changed, 75 insertions(+), 56 deletions(-)
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 442846f12cd4..7a0538b45faf 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -4274,16 +4274,15 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card)
return 0;
}
-static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
- struct snd_soc_pcm_runtime *rtd)
+static void dapm_add_valid_dai_widget(struct snd_soc_card *card,
+ struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *codec_dai,
+ struct snd_soc_dai *cpu_dai)
[...]
+static void dapm_connect_dai_link_widgets(struct snd_soc_card *card,
+ struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_dai *codec_dai;
+ int i;
+
+ if (rtd->num_cpus > 1) {
+ if (rtd->num_codecs == rtd->num_cpus)
+ for_each_rtd_codec_dai(rtd, i, codec_dai)
+ dapm_add_valid_dai_widget(card, rtd,
+ codec_dai,
+ rtd->cpu_dais[i]);
+ else
+ dev_err(card->dev,
+ "N cpus to M codecs link is not supported yet\n");
+ } else {
+ for_each_rtd_codec_dai(rtd, i, codec_dai)
+ dapm_add_valid_dai_widget(card, rtd,
+ codec_dai, rtd->cpu_dais[0]);
I would suggest introducing the new helper in an earlier patch, then the
addition of the multi-cpu-dai case would be a lot easier to review - and
make sure there's no regression.
This patch is difficult to double-check with too many unrelated code
moves due to the new helper.
}
}
@@ -4417,9 +4434,11 @@ static void soc_dapm_stream_event(struct snd_soc_pcm_runtime *rtd, int stream,
int event)
{
struct snd_soc_dai *codec_dai;
+ struct snd_soc_dai *cpu_dai;
int i;
- soc_dapm_dai_stream_event(rtd->cpu_dai, stream, event);
+ for_each_rtd_cpu_dai(rtd, i, cpu_dai)
+ soc_dapm_dai_stream_event(cpu_dai, stream, event);
for_each_rtd_codec_dai(rtd, i, codec_dai)
soc_dapm_dai_stream_event(codec_dai, stream, event);
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