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Date: Mon, 23 Dec 2013 12:57:01 +0800
From: Xiubo Li <Li.Xiubo@...escale.com>
To: <broonie@...nel.org>, <lgirdwood@...il.com>
CC: <rob@...dley.net>, <kuninori.morimoto.gx@...esas.com>,
<fabio.estevam@...escale.com>, <alsa-devel@...a-project.org>,
<linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH] 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@...escale.com>
---
Documentation/devicetree/bindings/sound/simple-card.txt | 13 +++++++++++--
sound/soc/generic/simple-card.c | 11 +++++++++--
2 files changed, 20 insertions(+), 4 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt
index 769a346..2ee80c76 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-card.txt
@@ -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>;
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 1d87db8..643c9ed 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -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");
@@ -185,6 +191,7 @@ 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,
@@ -196,6 +203,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
}
}
} else {
+ cinfo->snd_card.dev = &pdev->dev;
cinfo = pdev->dev.platform_data;
}
@@ -235,7 +243,6 @@ 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);
}
--
1.8.4
--
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