Re: [PATCH 1/2] ASoC: SOF: mediatek: add mt8188 audio support

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Il 15/05/23 07:25, Trevor Wu ha scritto:
Add mt8188 dai driver and specify of_machine to support mt8188 audio.

Signed-off-by: Trevor Wu <trevor.wu@xxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Yaochun Hung <yc.hung@xxxxxxxxxxxx>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
---
  sound/soc/sof/mediatek/mt8186/mt8186.c | 61 +++++++++++++++++++++++++-
  1 file changed, 60 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.c b/sound/soc/sof/mediatek/mt8186/mt8186.c
index 419913c8474d..3a9c81418c1f 100644
--- a/sound/soc/sof/mediatek/mt8186/mt8186.c
+++ b/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(struct snd_sof_dsp_ops));

Never use sizeof(type), always use destination var size! Anyway, there's more.

I don't think we need to perform this memcpy: we'll never see an instance of
both mt8186 and mt8188 drivers on the same machine, so you can safely just use
sof_mt8186_ops for mt8188...

+
+	sof_mt8188_ops.drv = mt8188_dai;

...which obviously means that this becomes

	sof_mt8186_ops.drv = mt8188_dai;

and....

+	sof_mt8186_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,

...this keeps being sof_mt8186_ops as well.

+	.ops_init = sof_mt8188_ops_init,
  };
static const struct of_device_id sof_of_mt8186_ids[] = {

Regards,
Angelo




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