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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2014-02-12 18:20:57 +0100
committerMark Brown <broonie@linaro.org>2014-03-18 19:38:05 +0100
commitcece5656901f09db13fbb569ff04f627ec2e0ab6 (patch)
tree76f593747e31eec40fc5c3175f836837cb876fba
parentasoc: soc-core: fix coccinelle warnings (diff)
downloadlinux-cece5656901f09db13fbb569ff04f627ec2e0ab6.tar.xz
linux-cece5656901f09db13fbb569ff04f627ec2e0ab6.zip
ASoC: add S/PDIF support to Armada 370 DB ASoC driver
The Armada 370 DB board not only has analog audio input/output, but also S/PDIF input/output. This commit adds support for S/PDIF in the ASoC machine driver of the Armada 370 DB platform, and adjusts the Device Tree bindings documentation accordingly. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Mark Brown <broonie@linaro.org>
-rw-r--r--Documentation/devicetree/bindings/sound/armada-370db-audio.txt9
-rw-r--r--sound/soc/kirkwood/Kconfig1
-rw-r--r--sound/soc/kirkwood/armada-370-db.c28
3 files changed, 35 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/sound/armada-370db-audio.txt b/Documentation/devicetree/bindings/sound/armada-370db-audio.txt
index 3893b4d15a20..bf984d238620 100644
--- a/Documentation/devicetree/bindings/sound/armada-370db-audio.txt
+++ b/Documentation/devicetree/bindings/sound/armada-370db-audio.txt
@@ -11,14 +11,17 @@ Mandatory properties:
* marvell,audio-controller: a phandle that points to the audio
controller of the Armada 370 SoC.
- * marvell,audio-codec: a phandle that points to the analog audio
- codec connected to the Armada 370 SoC.
+ * marvell,audio-codec: a set of three phandles that points to:
+
+ 1/ the analog audio codec connected to the Armada 370 SoC
+ 2/ the S/PDIF transceiver
+ 3/ the S/PDIF receiver
Example:
sound {
compatible = "marvell,a370db-audio";
marvell,audio-controller = <&audio_controller>;
- marvell,audio-codec = <&audio_codec>;
+ marvell,audio-codec = <&audio_codec &spdif_out &spdif_in>;
status = "okay";
};
diff --git a/sound/soc/kirkwood/Kconfig b/sound/soc/kirkwood/Kconfig
index 2dc3ecf34801..49f8437665de 100644
--- a/sound/soc/kirkwood/Kconfig
+++ b/sound/soc/kirkwood/Kconfig
@@ -10,6 +10,7 @@ config SND_KIRKWOOD_SOC_ARMADA370_DB
tristate "SoC Audio support for Armada 370 DB"
depends on SND_KIRKWOOD_SOC && (ARCH_MVEBU || COMPILE_TEST) && I2C
select SND_SOC_CS42L51
+ select SND_SOC_SPDIF
help
Say Y if you want to add support for SoC audio on
the Armada 370 Development Board.
diff --git a/sound/soc/kirkwood/armada-370-db.c b/sound/soc/kirkwood/armada-370-db.c
index 977639b3ffde..c44333849259 100644
--- a/sound/soc/kirkwood/armada-370-db.c
+++ b/sound/soc/kirkwood/armada-370-db.c
@@ -67,6 +67,20 @@ static struct snd_soc_dai_link a370db_dai[] = {
.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
.ops = &a370db_ops,
},
+{
+ .name = "S/PDIF out",
+ .stream_name = "spdif-out",
+ .cpu_dai_name = "spdif",
+ .codec_dai_name = "dit-hifi",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
+},
+{
+ .name = "S/PDIF in",
+ .stream_name = "spdif-in",
+ .cpu_dai_name = "spdif",
+ .codec_dai_name = "dir-hifi",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
+},
};
static struct snd_soc_card a370db = {
@@ -95,6 +109,20 @@ static int a370db_probe(struct platform_device *pdev)
of_parse_phandle(pdev->dev.of_node,
"marvell,audio-codec", 0);
+ a370db_dai[1].cpu_of_node = a370db_dai[0].cpu_of_node;
+ a370db_dai[1].platform_of_node = a370db_dai[0].cpu_of_node;
+
+ a370db_dai[1].codec_of_node =
+ of_parse_phandle(pdev->dev.of_node,
+ "marvell,audio-codec", 1);
+
+ a370db_dai[2].cpu_of_node = a370db_dai[0].cpu_of_node;
+ a370db_dai[2].platform_of_node = a370db_dai[0].cpu_of_node;
+
+ a370db_dai[2].codec_of_node =
+ of_parse_phandle(pdev->dev.of_node,
+ "marvell,audio-codec", 2);
+
return devm_snd_soc_register_card(card->dev, card);
}