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ASoC: simple-card: Add DAPM routes parse from device tree 

Parses a simple DAPM route table from device tree.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Xiubo Li 2013-12-23 12:57:01 +08:00 committed by Mark Brown
parent e1acb40a3a
commit d4c22094b2
2 changed files with 20 additions and 4 deletions
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13
Documentation/devicetree/bindings/sound/simple-card.txt
View File

@ -9,8 +9,13 @@ Required properties:
Optional properties:
- simple-audio-card,format : CPU/CODEC common audio format.
"i2s", "right_j", "left_j" , "dsp_a"
"dsp_b", "ac97", "pdm", "msb", "lsb"
"i2s", "right_j", "left_j" , "dsp_a"
"dsp_b", "ac97", "pdm", "msb", "lsb"
- simple-audio-routing : A list of the connections between audio components.
Each entry is a pair of strings, the first being the
connection's sink, the second being the connection's
source.
Required subnodes:
- simple-audio-card,cpu : CPU sub-node
@ -38,6 +43,10 @@ Example:
sound {
compatible = "simple-audio-card";
simple-audio-card,format = "left_j";
simple-audio-routing =
"MIC_IN", "Mic Jack",
"Headphone Jack", "HP_OUT",
"Ext Spk", "LINE_OUT";
simple-audio-card,cpu {
sound-dai = <&sh_fsi2 0>;

11
sound/soc/generic/simple-card.c
View File

@ -116,12 +116,18 @@ static int asoc_simple_card_parse_of(struct device_node *node,
{
struct device_node *np;
char *name;
int ret = 0;
int ret;
/* get CPU/CODEC common format via simple-audio-card,format */
info->daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") &
(SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK);
/* DAPM routes */
ret = snd_soc_of_parse_audio_routing(&info->snd_card,
"simple-audio-routing");
if (ret)
return ret;
/* CPU sub-node */
ret = -EINVAL;
np = of_get_child_by_name(node, "simple-audio-card,cpu");
@ -182,6 +188,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
cinfo = devm_kzalloc(dev, sizeof(*cinfo), GFP_KERNEL);
if (cinfo) {
int ret;
cinfo->snd_card.dev = &pdev->dev;
ret = asoc_simple_card_parse_of(np, cinfo, dev,
&of_cpu,
&of_codec,
@ -193,6 +200,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
}
}
} else {
cinfo->snd_card.dev = &pdev->dev;
cinfo = pdev->dev.platform_data;
}
@ -232,7 +240,6 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
cinfo->snd_card.owner = THIS_MODULE;
cinfo->snd_card.dai_link = &cinfo->snd_link;
cinfo->snd_card.num_links = 1;
cinfo->snd_card.dev = &pdev->dev;
return devm_snd_soc_register_card(&pdev->dev, &cinfo->snd_card);
}