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From: Philipp Zabel
To: alsa-devel@alsa-project.org
Date: Tue, 8 Mar 2016 14:31:42 +0100
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Cc: Jean-Francois Moine , Koro Chen ,
Lars-Peter Clausen ,
Russell King - ARM Linux ,
Philipp Zabel ,
Arnaud Pouliquen ,
Liam Girdwood , Jyri Sarha ,
Cawa Cheng , Mark Brown ,
linux-mediatek@lists.infradead.org, Daniel Kurtz ,
kernel@pengutronix.de, PC Liao ,
Matthias Brugger
Subject: [alsa-devel] [PATCH v6 03/10] ASoC: mediatek: Add HDMI dai-links to
the mt8173-rt5650 machine driver
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From: PC Liao
This patch adds HDMI audio output support to the MT8173 RT5650 machine
driver.
Signed-off-by: PC Liao
Signed-off-by: Philipp Zabel
---
Changes since v5:
- split out jack support
---
.../devicetree/bindings/sound/mt8173-rt5650.txt | 5 +++--
sound/soc/mediatek/Kconfig | 1 +
sound/soc/mediatek/mt8173-rt5650.c | 26 ++++++++++++++++++++++
3 files changed, 30 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/mt8173-rt5650.txt b/Documentation/devicetree/bindings/sound/mt8173-rt5650.txt
index fe5a5ef..6b182c4 100644
--- a/Documentation/devicetree/bindings/sound/mt8173-rt5650.txt
+++ b/Documentation/devicetree/bindings/sound/mt8173-rt5650.txt
@@ -1,15 +1,16 @@
-MT8173 with RT5650 CODECS
+MT8173 with RT5650 CODECS and HDMI via I2S
Required properties:
- compatible : "mediatek,mt8173-rt5650"
- mediatek,audio-codec: the phandles of rt5650 codecs
+ and of the hdmi encoder node
- mediatek,platform: the phandle of MT8173 ASoC platform
Example:
sound {
compatible = "mediatek,mt8173-rt5650";
- mediatek,audio-codec = <&rt5650>;
+ mediatek,audio-codec = <&rt5650 &hdmi0>;
mediatek,platform = <&afe>;
};
diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index 61389ac..fd53992 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -21,6 +21,7 @@ config SND_SOC_MT8173_RT5650
tristate "ASoC Audio driver for MT8173 with RT5650 codec"
depends on SND_SOC_MEDIATEK && I2C
select SND_SOC_RT5645
+ select SND_SOC_HDMI_CODEC
help
This adds ASoC driver for Mediatek MT8173 boards
with the RT5650 audio codec.
diff --git a/sound/soc/mediatek/mt8173-rt5650.c b/sound/soc/mediatek/mt8173-rt5650.c
index bb09bb1..0bd8324 100644
--- a/sound/soc/mediatek/mt8173-rt5650.c
+++ b/sound/soc/mediatek/mt8173-rt5650.c
@@ -117,7 +117,9 @@ static struct snd_soc_dai_link_component mt8173_rt5650_codecs[] = {
enum {
DAI_LINK_PLAYBACK,
DAI_LINK_CAPTURE,
+ DAI_LINK_HDMI,
DAI_LINK_CODEC_I2S,
+ DAI_LINK_HDMI_I2S,
};
/* Digital audio interface glue - connects codec <---> CPU */
@@ -143,6 +145,16 @@ static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
.dynamic = 1,
.dpcm_capture = 1,
},
+ [DAI_LINK_HDMI] = {
+ .name = "HDMI",
+ .stream_name = "HDMI PCM",
+ .cpu_dai_name = "HDMI",
+ .codec_name = "snd-soc-dummy",
+ .codec_dai_name = "snd-soc-dummy-dai",
+ .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+ .dynamic = 1,
+ .dpcm_playback = 1,
+ },
/* Back End DAI links */
[DAI_LINK_CODEC_I2S] = {
.name = "Codec",
@@ -158,6 +170,13 @@ static struct snd_soc_dai_link mt8173_rt5650_dais[] = {
.dpcm_playback = 1,
.dpcm_capture = 1,
},
+ [DAI_LINK_HDMI_I2S] = {
+ .name = "HDMI BE",
+ .cpu_dai_name = "HDMIO",
+ .no_pcm = 1,
+ .codec_dai_name = "i2s-hifi",
+ .dpcm_playback = 1,
+ },
};
static struct snd_soc_card mt8173_rt5650_card = {
@@ -199,6 +218,13 @@ static int mt8173_rt5650_dev_probe(struct platform_device *pdev)
"Property 'audio-codec' missing or invalid\n");
return -EINVAL;
}
+ mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node =
+ of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 1);
+ if (!mt8173_rt5650_dais[DAI_LINK_HDMI_I2S].codec_of_node) {
+ dev_err(&pdev->dev,
+ "Property 'audio-codec' missing or invalid\n");
+ return -EINVAL;
+ }
card->dev = &pdev->dev;
platform_set_drvdata(pdev, card);