ASoC: mediatek: mt8195: add HDMITX audio support

This patch adds HDMITX audio support on mt8195-mt6359-rt1019-rt5682 board.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Link: https://lore.kernel.org/r/20210819084144.18483-11-trevor.wu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/mediatek/mt8195/mt8195-mt6359-rt1019-rt5682.c

@@ -28,6 +28,7 @@
 struct mt8195_mt6359_rt1019_rt5682_priv {
 	struct snd_soc_jack headset_jack;
 	struct snd_soc_jack dp_jack;
+	struct snd_soc_jack hdmi_jack;
 };
 
 static const struct snd_soc_dapm_widget
@@ -407,6 +408,22 @@ static int mt8195_dptx_codec_init(struct snd_soc_pcm_runtime *rtd)
 	return snd_soc_component_set_jack(cmpnt_codec, &priv->dp_jack, NULL);
 }
 
+static int mt8195_hdmi_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct mt8195_mt6359_rt1019_rt5682_priv *priv =
+		snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_component *cmpnt_codec =
+		asoc_rtd_to_codec(rtd, 0)->component;
+	int ret = 0;
+
+	ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT,
+				    &priv->hdmi_jack, NULL, 0);
+	if (ret)
+		return ret;
+
+	return snd_soc_component_set_jack(cmpnt_codec, &priv->hdmi_jack, NULL);
+}
+
 static int mt8195_hdmitx_dptx_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 					      struct snd_pcm_hw_params *params)
 
@@ -936,6 +953,7 @@ static struct snd_soc_dai_link mt8195_mt6359_rt1019_rt5682_dai_links[] = {
 			SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_CBS_CFS,
 		.dpcm_playback = 1,
+		.be_hw_params_fixup = mt8195_hdmitx_dptx_hw_params_fixup,
 		SND_SOC_DAILINK_REG(ETDM3_OUT_BE),
 	},
 	[DAI_LINK_PCM1_BE] = {
@@ -1008,6 +1026,20 @@ static int mt8195_mt6359_rt1019_rt5682_dev_probe(struct platform_device *pdev)
 			dai_link->codecs->dai_name = "i2s-hifi";
 			dai_link->init = mt8195_dptx_codec_init;
 		}
+
+		if (strcmp(dai_link->name, "ETDM3_OUT_BE") == 0) {
+			dai_link->codecs->of_node =
+				of_parse_phandle(pdev->dev.of_node,
+						 "mediatek,hdmi-codec", 0);
+			if (!dai_link->codecs->of_node) {
+				dev_err(&pdev->dev, "Property 'hdmi-codec' missing or invalid\n");
+				return -EINVAL;
+			}
+
+			dai_link->codecs->name = NULL;
+			dai_link->codecs->dai_name = "i2s-hifi";
+			dai_link->init = mt8195_hdmi_codec_init;
+		}
 	}
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);