This patch allows to declare many CODECs per DAI link in the device tree.
Signed-off-by: Jean-Francois Moine <moin...@free.fr>
---
.../devicetree/bindings/sound/simple-card.txt | 19 ++++++++++-
sound/soc/generic/simple-card.c | 39 +++++++++++++---------
2 files changed, 42 insertions(+), 16 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt
b/Documentation/devicetree/bindings/sound/simple-card.txt
index c3cba60..6e3a011 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-card.txt
@@ -65,7 +65,8 @@ properties should also be placed in the codec node if needed.
Required CPU/CODEC subnodes properties:
-- sound-dai : phandle and port of CPU/CODEC
+- sound-dai : phandle and port of CPU
+ or list of phandle and port of CODECs
Optional CPU/CODEC subnodes properties:
@@ -153,3 +154,19 @@ sound {
};
};
};
+
+Example 3 - many CODECs
+
+sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "Cubox Simple Audio";
+
+ simple-audio-card,dai-link { /* S/PDIF - HDMI & S/PDIF */
+ cpu {
+ sound-dai = <&audio1 1>;
+ };
+ codec {
+ sound-dai = <&tda998x 1>, <&spdif_codec>;
+ };
+ };
+};
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 170de17..a765869 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -264,11 +264,12 @@ static int asoc_simple_card_dai_link_of(struct
device_node *node,
struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
struct device_node *cpu = NULL;
struct device_node *codec = NULL;
+ struct snd_soc_dai_link_component *component;
struct of_phandle_args args;
char *name;
char prop[128];
char *prefix = "";
- int ret, cpu_args;
+ int ret, cpu_args, i;
/* For single DAI link & old style of DT node */
if (is_top_level_node)
@@ -308,19 +309,13 @@ static int asoc_simple_card_dai_link_of(struct
device_node *node,
if (ret < 0)
goto dai_link_of_err;
- /* Get the node and name of the CODEC */
- ret = of_parse_phandle_with_args(codec, "sound-dai",
- "#sound-dai-cells", 0, &args);
+ /* Get the node and name of the CODECs */
+ ret = snd_soc_of_get_dai_link_codecs(dev, codec, dai_link);
if (ret < 0)
goto dai_link_of_err;
- dai_link->codec_of_node = args.np;
-
- ret = snd_soc_of_get_dai_name(codec, &dai_link->codec_dai_name);
- if (ret < 0)
- goto dai_link_of_err;
ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai,
- dai_link->codec_of_node);
+ dai_link->codecs[0].of_node);
if (ret < 0)
goto dai_link_of_err;
@@ -335,10 +330,10 @@ static int asoc_simple_card_dai_link_of(struct
device_node *node,
/* DAI link name is created from CPU/CODEC dai name */
name = devm_kzalloc(dev,
strlen(dai_link->cpu_dai_name) +
- strlen(dai_link->codec_dai_name) + 2,
+ strlen(dai_link->codecs[0].dai_name) + 2,
GFP_KERNEL);
sprintf(name, "%s-%s", dai_link->cpu_dai_name,
- dai_link->codec_dai_name);
+ dai_link->codecs[0].dai_name);
dai_link->name = dai_link->stream_name = name;
dai_link->ops = &asoc_simple_card_ops;
dai_link->init = asoc_simple_card_dai_init;
@@ -349,7 +344,7 @@ static int asoc_simple_card_dai_link_of(struct device_node
*node,
dai_props->cpu_dai.fmt,
dai_props->cpu_dai.sysclk);
dev_dbg(dev, "\tcodec : %s / %04x / %d\n",
- dai_link->codec_dai_name,
+ dai_link->codecs[0].dai_name,
dai_props->codec_dai.fmt,
dai_props->codec_dai.sysclk);
@@ -365,7 +360,17 @@ static int asoc_simple_card_dai_link_of(struct device_node
*node,
if (!cpu_args)
dai_link->cpu_dai_name = NULL;
+ of_node_put(cpu);
+ of_node_put(codec);
+ return 0;
+
dai_link_of_err:
+ for (i = 0, component = dai_link->codecs;
+ i < dai_link->num_codecs;
+ i++, component++) {
+ of_node_put(component->of_node);
+ component->of_node = NULL;
+ }
of_node_put(cpu);
of_node_put(codec);
@@ -455,13 +460,17 @@ static int asoc_simple_card_unref(struct platform_device
*pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
struct snd_soc_dai_link *dai_link;
- int num_links;
+ struct snd_soc_dai_link_component *component;
+ int num_links, i;
for (num_links = 0, dai_link = card->dai_link;
num_links < card->num_links;
num_links++, dai_link++) {
of_node_put(dai_link->cpu_of_node);
- of_node_put(dai_link->codec_of_node);
+ for (i = 0, component = dai_link->codecs;
+ i < dai_link->num_codecs;
+ i++, component++)
+ of_node_put(component->of_node);
}
return 0;
}
--
2.1.4
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