ASoC: SOF: mediatek: add mt8188 audio support

Add mt8188 dai driver and specify of_machine to support mt8188 audio.
Signed-off-by: Trevor Wu <trevor.wu@mediatek.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Yaochun Hung <yc.hung@mediatek.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20230523025933.30494-2-trevor.wu@mediatek.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/mediatek/mt8186/mt8186.c

@@ -594,7 +594,65 @@ static const struct sof_dev_desc sof_of_mt8186_desc = {
 	.ops = &sof_mt8186_ops,
 };
 
+/*
+ * DL2, DL3, UL4, UL5 are registered as SOF FE, so creating the corresponding
+ * SOF BE to complete the pipeline.
+ */
+static struct snd_soc_dai_driver mt8188_dai[] = {
+{
+	.name = "SOF_DL2",
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+{
+	.name = "SOF_DL3",
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+{
+	.name = "SOF_UL4",
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+{
+	.name = "SOF_UL5",
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+	},
+},
+};
+
+/* mt8188 ops */
+static struct snd_sof_dsp_ops sof_mt8188_ops;
+
+static int sof_mt8188_ops_init(struct snd_sof_dev *sdev)
+{
+	/* common defaults */
+	memcpy(&sof_mt8188_ops, &sof_mt8186_ops, sizeof(sof_mt8188_ops));
+
+	sof_mt8188_ops.drv = mt8188_dai;
+	sof_mt8188_ops.num_drv = ARRAY_SIZE(mt8188_dai);
+
+	return 0;
+}
+
+static struct snd_sof_of_mach sof_mt8188_machs[] = {
+	{
+		.compatible = "mediatek,mt8188",
+		.sof_tplg_filename = "sof-mt8188.tplg",
+	},
+	{}
+};
+
 static const struct sof_dev_desc sof_of_mt8188_desc = {
+	.of_machines = sof_mt8188_machs,
 	.ipc_supported_mask	= BIT(SOF_IPC),
 	.ipc_default		= SOF_IPC,
 	.default_fw_path = {
@@ -607,7 +665,8 @@ static const struct sof_dev_desc sof_of_mt8188_desc = {
 		[SOF_IPC] = "sof-mt8188.ri",
 	},
 	.nocodec_tplg_filename = "sof-mt8188-nocodec.tplg",
-	.ops = &sof_mt8186_ops,
+	.ops = &sof_mt8188_ops,
+	.ops_init = sof_mt8188_ops_init,
 };
 
 static const struct of_device_id sof_of_mt8186_ids[] = {