ASoC: mediatek: Add HDMI dai-links in the mt8173-rt5650-rt5676 machine driver

This creates pcmC0D2p for the HDMI playback in the same card.

Signed-off-by: Koro Chen <koro.chen@mediatek.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/mt8173-rt5650-rt5676.txt b/Documentation/devicetree/bindings/sound/mt8173-rt5650-rt5676.txt
index f205ce9..ac28cdb 100644 (file)
--- a/Documentation/devicetree/bindings/sound/mt8173-rt5650-rt5676.txt
+++ b/Documentation/devicetree/bindings/sound/mt8173-rt5650-rt5676.txt
@@ -1,15 +1,16 @@
-MT8173 with RT5650 RT5676 CODECS
+MT8173 with RT5650 RT5676 CODECS and HDMI via I2S
 
 Required properties:
 - compatible : "mediatek,mt8173-rt5650-rt5676"
 - mediatek,audio-codec: the phandles of rt5650 and rt5676 codecs
+                       and of the hdmi encoder node
 - mediatek,platform: the phandle of MT8173 ASoC platform
 
 Example:
 
        sound {
                compatible = "mediatek,mt8173-rt5650-rt5676";
-               mediatek,audio-codec = <&rt5650 &rt5676>;
+               mediatek,audio-codec = <&rt5650 &rt5676 &hdmi0>;
                mediatek,platform = <&afe>;
        };
 

diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index f7e789e..3abf51c 100644 (file)
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -43,6 +43,7 @@ config SND_SOC_MT8173_RT5650_RT5676
        depends on SND_SOC_MEDIATEK && I2C
        select SND_SOC_RT5645
        select SND_SOC_RT5677
+       select SND_SOC_HDMI_CODEC
        help
          This adds ASoC driver for Mediatek MT8173 boards
          with the RT5650 and RT5676 codecs.

diff --git a/sound/soc/mediatek/mt8173-rt5650-rt5676.c b/sound/soc/mediatek/mt8173-rt5650-rt5676.c
index 5c4c58c..bb59392 100644 (file)
--- a/sound/soc/mediatek/mt8173-rt5650-rt5676.c
+++ b/sound/soc/mediatek/mt8173-rt5650-rt5676.c
@@ -134,7 +134,9 @@ static struct snd_soc_dai_link_component mt8173_rt5650_rt5676_codecs[] = {
 enum {
        DAI_LINK_PLAYBACK,
        DAI_LINK_CAPTURE,
+       DAI_LINK_HDMI,
        DAI_LINK_CODEC_I2S,
+       DAI_LINK_HDMI_I2S,
        DAI_LINK_INTERCODEC
 };
 
@@ -161,6 +163,16 @@ static struct snd_soc_dai_link mt8173_rt5650_rt5676_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] = {
@@ -177,6 +189,13 @@ static struct snd_soc_dai_link mt8173_rt5650_rt5676_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,
+       },
        /* rt5676 <-> rt5650 intercodec link: Sets rt5676 I2S2 as master */
        [DAI_LINK_INTERCODEC] = {
                .name = "rt5650_rt5676 intercodec",
@@ -251,6 +270,14 @@ static int mt8173_rt5650_rt5676_dev_probe(struct platform_device *pdev)
        mt8173_rt5650_rt5676_dais[DAI_LINK_INTERCODEC].codec_of_node =
                mt8173_rt5650_rt5676_codecs[1].of_node;
 
+       mt8173_rt5650_rt5676_dais[DAI_LINK_HDMI_I2S].codec_of_node =
+               of_parse_phandle(pdev->dev.of_node, "mediatek,audio-codec", 2);
+       if (!mt8173_rt5650_rt5676_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);