[alsa-devel] [PATCH 05/15][RFC] ASoC: audio-graph-card: support snd_soc_dai_link_component style for codec
Kuninori Morimoto
kuninori.morimoto.gx at renesas.com
Mon Aug 20 07:12:22 CEST 2018
From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Current ASoC is supporting snd_soc_dai_link_component for binding,
it is more useful than current legacy style.
Currently only codec is supporting it as multicodec (= codecs).
CPU will support multi style in the future.
We want to have it on Platform too in the future.
If all Codec/CPU/Platform are replaced into snd_soc_dai_link_component
style, we can remove legacy complex style.
This patch supports snd_soc_dai_link_component style
for audio-graph-card for codec.
[current]
struct snd_soc_dai_link {
...
*cpu_name;
*cpu_of_node;
*cpu_dai_name;
*codec_name;
*codec_of_node;
*codec_dai_name;
*codecs;
num_codecs;
*platform_name;
*platform_of_node;
...
}
[in the future]
struct snd_soc_dai_link {
...
*cpus
num_cpus;
*codecs;
num_codecs;
*platform;
...
}
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
sound/soc/generic/audio-graph-card.c | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 2094d2c..5b2ecf8 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -25,6 +25,7 @@ struct graph_card_data {
struct graph_dai_props {
struct asoc_simple_dai cpu_dai;
struct asoc_simple_dai codec_dai;
+ struct snd_soc_dai_link_component codecs; /* single codec */
unsigned int mclk_fs;
} *dai_props;
unsigned int mclk_fs;
@@ -213,7 +214,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"%s-%s",
dai_link->cpu_dai_name,
- dai_link->codec_dai_name);
+ dai_link->codecs->dai_name);
if (ret < 0)
goto dai_link_of_err;
@@ -299,7 +300,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev)
struct graph_dai_props *dai_props;
struct device *dev = &pdev->dev;
struct snd_soc_card *card;
- int num, ret;
+ int num, ret, i;
/* Allocate the private data and the DAI link array */
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -315,6 +316,17 @@ static int asoc_graph_card_probe(struct platform_device *pdev)
if (!dai_props || !dai_link)
return -ENOMEM;
+ /*
+ * Use snd_soc_dai_link_component instead of legacy style
+ * It is codec only. but cpu/platform will be supported in the future.
+ * see
+ * soc-core.c :: snd_soc_init_multicodec()
+ */
+ for (i = 0; i < num; i++) {
+ dai_link[i].codecs = &dai_props[i].codecs;
+ dai_link[i].num_codecs = 1;
+ }
+
priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW);
if (IS_ERR(priv->pa_gpio)) {
ret = PTR_ERR(priv->pa_gpio);
--
2.7.4
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