ASoC: mediatek: Set i2s clock sharing from machine drivers

Merge series from Nícolas F. R. A. Prado <nfraprado@collabora.com>:

The i2s ports on MediaTek SoCs only support a single data lane. In order
to achieve full-duplex operation thus two i2s ports, one for input and
one for output, need to be used together and sharing a single clock from
one of the ports.

This clock sharing setting was previously read by the sound platform
driver from the devicetree, but given that the input/output pairing is
closely related to which codecs are connected to which ports, the
machine sound driver can infer and set it, so that no DT property is
required.

At this point only mt8183-kukui was using the DT property, but given
that this property was never documented, and that the API introduced in
this series makes it obsolete, the undocumented DT property can safely
be removed.

This series adds a function to allow setting the i2s shared clocks,
makes use of it in the machine drivers as required, and removes the no
longer required DT properties and support for them in the drivers, for
all of mt8192, mt8183 and mt8186.

Nícolas F. R. A. Prado (10):
  ASoC: mediatek: mt8192: Allow setting shared clocks from machine
    driver
  ASoC: mediatek: mt8192-mt6359: Make i2s9 share the clock from i2s8
  ASoC: mediatek: mt8192: Remove clock share parsing from DT
  ASoC: mediatek: mt8183: Allow setting shared clocks from machine
    driver
  ASoC: mediatek: mt8183: Configure shared clocks
  ASoC: mediatek: mt8183: Remove clock share parsing from DT
  arm64: dts: mediatek: kukui: Remove i2s-share properties
  ASoC: mediatek: mt8186: Allow setting shared clocks from machine
    driver
  ASoC: mediatek: mt8186: Configure shared clocks
  ASoC: mediatek: mt8186: Remove clock share parsing from DT

 .../arm64/boot/dts/mediatek/mt8183-kukui.dtsi |  5 --
 sound/soc/mediatek/mt8183/mt8183-afe-common.h |  3 ++
 .../mediatek/mt8183/mt8183-da7219-max98357.c  | 33 +++++++++++++
 sound/soc/mediatek/mt8183/mt8183-dai-i2s.c    | 45 ++++++++---------
 .../mt8183/mt8183-mt6358-ts3a227-max98357.c   | 33 +++++++++++++
 sound/soc/mediatek/mt8186/mt8186-afe-common.h |  3 ++
 sound/soc/mediatek/mt8186/mt8186-dai-i2s.c    | 44 ++++++++---------
 .../mt8186/mt8186-mt6366-da7219-max98357.c    | 18 +++++++
 .../mt8186/mt8186-mt6366-rt1019-rt5682s.c     | 18 +++++++
 sound/soc/mediatek/mt8192/mt8192-afe-common.h |  3 ++
 sound/soc/mediatek/mt8192/mt8192-dai-i2s.c    | 49 ++++++++-----------
 .../mt8192/mt8192-mt6359-rt1015-rt5682.c      |  9 ++++
 12 files changed, 180 insertions(+), 83 deletions(-)

--
2.37.3

arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi

@@ -221,11 +221,6 @@
 	};
 };
 
-&afe {
-	i2s3-share = "I2S2";
-	i2s0-share = "I2S5";
-};
-
 &auxadc {
 	status = "okay";
 };

sound/soc/mediatek/mt8183/mt8183-afe-common.h

@@ -99,6 +99,9 @@ unsigned int mt8183_general_rate_transform(struct device *dev,
 unsigned int mt8183_rate_transform(struct device *dev,
 				   unsigned int rate, int aud_blk);
 
+int mt8183_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
+			     const char *secondary_i2s_name);
+
 /* dai register */
 int mt8183_dai_adda_register(struct mtk_base_afe *afe);
 int mt8183_dai_pcm_register(struct mtk_base_afe *afe);

sound/soc/mediatek/mt8183/mt8183-da7219-max98357.c

@@ -17,6 +17,7 @@
 #include "../../codecs/da7219-aad.h"
 #include "../../codecs/da7219.h"
 #include "../../codecs/rt1015.h"
+#include "../common/mtk-afe-platform-driver.h"
 #include "mt8183-afe-common.h"
 
 #define DA7219_CODEC_DAI "da7219-hifi"
@@ -372,6 +373,36 @@ static int mt8183_da7219_max98357_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 					  &priv->hdmi_jack, NULL);
 }
 
+static int mt8183_bt_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
+	int ret;
+
+	ret = mt8183_dai_i2s_set_share(afe, "I2S5", "I2S0");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+	return 0;
+}
+
+static int mt8183_da7219_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
+	int ret;
+
+	ret = mt8183_dai_i2s_set_share(afe, "I2S2", "I2S3");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+	return 0;
+}
+
 static struct snd_soc_dai_link mt8183_da7219_dai_links[] = {
 	/* FE */
 	{
@@ -500,6 +531,7 @@ static struct snd_soc_dai_link mt8183_da7219_dai_links[] = {
 		.ignore_suspend = 1,
 		.be_hw_params_fixup = mt8183_i2s_hw_params_fixup,
 		.ops = &mt8183_da7219_i2s_ops,
+		.init = &mt8183_da7219_init,
 		SND_SOC_DAILINK_REG(i2s2),
 	},
 	{
@@ -515,6 +547,7 @@ static struct snd_soc_dai_link mt8183_da7219_dai_links[] = {
 		.ignore_suspend = 1,
 		.be_hw_params_fixup = mt8183_i2s_hw_params_fixup,
 		.ops = &mt8183_mt6358_i2s_ops,
+		.init = &mt8183_bt_init,
 		SND_SOC_DAILINK_REG(i2s5),
 	},
 	{

sound/soc/mediatek/mt8183/mt8183-dai-i2s.c

@@ -43,7 +43,6 @@ struct mtk_afe_i2s_priv {
 	int rate; /* for determine which apll to use */
 	int low_jitter_en;
 
-	const char *share_property_name;
 	int share_i2s_id;
 
 	int mclk_id;
@@ -977,54 +976,55 @@ static const struct mtk_afe_i2s_priv mt8183_i2s_priv[DAI_I2S_NUM] = {
 	[DAI_I2S0] = {
 		.id = MT8183_DAI_I2S_0,
 		.mclk_id = MT8183_I2S0_MCK,
-		.share_property_name = "i2s0-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S1] = {
 		.id = MT8183_DAI_I2S_1,
 		.mclk_id = MT8183_I2S1_MCK,
-		.share_property_name = "i2s1-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S2] = {
 		.id = MT8183_DAI_I2S_2,
 		.mclk_id = MT8183_I2S2_MCK,
-		.share_property_name = "i2s2-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S3] = {
 		.id = MT8183_DAI_I2S_3,
 		.mclk_id = MT8183_I2S3_MCK,
-		.share_property_name = "i2s3-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S5] = {
 		.id = MT8183_DAI_I2S_5,
 		.mclk_id = MT8183_I2S5_MCK,
-		.share_property_name = "i2s5-share",
 		.share_i2s_id = -1,
 	},
 };
 
-static int mt8183_dai_i2s_get_share(struct mtk_base_afe *afe)
+/**
+ * mt8183_dai_i2s_set_share() - Set up I2S ports to share a single clock.
+ * @afe: Pointer to &struct mtk_base_afe
+ * @main_i2s_name: The name of the I2S port that will provide the clock
+ * @secondary_i2s_name: The name of the I2S port that will use this clock
+ */
+int mt8183_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
+			     const char *secondary_i2s_name)
 {
-	struct mt8183_afe_private *afe_priv = afe->platform_priv;
-	const struct device_node *of_node = afe->dev->of_node;
-	const char *of_str;
-	const char *property_name;
-	struct mtk_afe_i2s_priv *i2s_priv;
-	int i;
+	struct mtk_afe_i2s_priv *secondary_i2s_priv;
+	int main_i2s_id;
 
-	for (i = 0; i < DAI_I2S_NUM; i++) {
-		i2s_priv = afe_priv->dai_priv[mt8183_i2s_priv[i].id];
-		property_name = mt8183_i2s_priv[i].share_property_name;
-		if (of_property_read_string(of_node, property_name, &of_str))
-			continue;
-		i2s_priv->share_i2s_id = get_i2s_id_by_name(afe, of_str);
-	}
+	secondary_i2s_priv = get_i2s_priv_by_name(afe, secondary_i2s_name);
+	if (!secondary_i2s_priv)
+		return -EINVAL;
+
+	main_i2s_id = get_i2s_id_by_name(afe, main_i2s_name);
+	if (main_i2s_id < 0)
+		return main_i2s_id;
+
+	secondary_i2s_priv->share_i2s_id = main_i2s_id;
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(mt8183_dai_i2s_set_share);
 
 static int mt8183_dai_i2s_set_priv(struct mtk_base_afe *afe)
 {
@@ -1074,10 +1074,5 @@ int mt8183_dai_i2s_register(struct mtk_base_afe *afe)
 	if (ret)
 		return ret;
 
-	/* parse share i2s */
-	ret = mt8183_dai_i2s_get_share(afe);
-	if (ret)
-		return ret;
-
 	return 0;
 }

sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c

@@ -15,6 +15,7 @@
 
 #include "../../codecs/rt1015.h"
 #include "../../codecs/ts3a227e.h"
+#include "../common/mtk-afe-platform-driver.h"
 #include "mt8183-afe-common.h"
 
 #define RT1015_CODEC_DAI "rt1015-aif"
@@ -391,6 +392,36 @@ mt8183_mt6358_ts3a227_max98357_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 					  &priv->hdmi_jack, NULL);
 }
 
+static int mt8183_bt_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
+	int ret;
+
+	ret = mt8183_dai_i2s_set_share(afe, "I2S5", "I2S0");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+	return 0;
+}
+
+static int mt8183_i2s2_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
+	int ret;
+
+	ret = mt8183_dai_i2s_set_share(afe, "I2S2", "I2S3");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+	return 0;
+}
+
 static struct snd_soc_dai_link mt8183_mt6358_ts3a227_dai_links[] = {
 	/* FE */
 	{
@@ -527,6 +558,7 @@ static struct snd_soc_dai_link mt8183_mt6358_ts3a227_dai_links[] = {
 		.ignore_suspend = 1,
 		.be_hw_params_fixup = mt8183_i2s_hw_params_fixup,
 		.ops = &mt8183_mt6358_i2s_ops,
+		.init = &mt8183_i2s2_init,
 		SND_SOC_DAILINK_REG(i2s2),
 	},
 	{
@@ -541,6 +573,7 @@ static struct snd_soc_dai_link mt8183_mt6358_ts3a227_dai_links[] = {
 		.dpcm_playback = 1,
 		.ignore_suspend = 1,
 		.ops = &mt8183_mt6358_i2s_ops,
+		.init = &mt8183_bt_init,
 		SND_SOC_DAILINK_REG(i2s5),
 	},
 	{

sound/soc/mediatek/mt8186/mt8186-afe-common.h

@@ -189,6 +189,9 @@ unsigned int mt8186_rate_transform(struct device *dev,
 unsigned int mt8186_tdm_relatch_rate_transform(struct device *dev,
 					       unsigned int rate);
 
+int mt8186_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
+			     const char *secondary_i2s_name);
+
 int mt8186_dai_set_priv(struct mtk_base_afe *afe, int id,
 			int priv_size, const void *priv_data);
 

sound/soc/mediatek/mt8186/mt8186-dai-i2s.c

@@ -44,7 +44,6 @@ struct mtk_afe_i2s_priv {
 	int low_jitter_en;
 	int master; /* only i2s0 has slave mode*/
 
-	const char *share_property_name;
 	int share_i2s_id;
 
 	int mclk_id;
@@ -1140,49 +1139,51 @@ static const struct mtk_afe_i2s_priv mt8186_i2s_priv[DAI_I2S_NUM] = {
 	[DAI_I2S0] = {
 		.id = MT8186_DAI_I2S_0,
 		.mclk_id = MT8186_I2S0_MCK,
-		.share_property_name = "i2s0-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S1] = {
 		.id = MT8186_DAI_I2S_1,
 		.mclk_id = MT8186_I2S1_MCK,
-		.share_property_name = "i2s1-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S2] = {
 		.id = MT8186_DAI_I2S_2,
 		.mclk_id = MT8186_I2S2_MCK,
-		.share_property_name = "i2s2-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S3] = {
 		.id = MT8186_DAI_I2S_3,
 		/*  clock gate naming is hf_faud_i2s4_m_ck*/
 		.mclk_id = MT8186_I2S4_MCK,
-		.share_property_name = "i2s3-share",
 		.share_i2s_id = -1,
 	}
 };
 
-static int mt8186_dai_i2s_get_share(struct mtk_base_afe *afe)
+/**
+ * mt8186_dai_i2s_set_share() - Set up I2S ports to share a single clock.
+ * @afe: Pointer to &struct mtk_base_afe
+ * @main_i2s_name: The name of the I2S port that will provide the clock
+ * @secondary_i2s_name: The name of the I2S port that will use this clock
+ */
+int mt8186_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
+			     const char *secondary_i2s_name)
 {
-	struct mt8186_afe_private *afe_priv = afe->platform_priv;
-	const struct device_node *of_node = afe->dev->of_node;
-	const char *of_str;
-	const char *property_name;
-	struct mtk_afe_i2s_priv *i2s_priv;
-	int i;
+	struct mtk_afe_i2s_priv *secondary_i2s_priv;
+	int main_i2s_id;
 
-	for (i = 0; i < DAI_I2S_NUM; i++) {
-		i2s_priv = afe_priv->dai_priv[mt8186_i2s_priv[i].id];
-		property_name = mt8186_i2s_priv[i].share_property_name;
-		if (of_property_read_string(of_node, property_name, &of_str))
-			continue;
-		i2s_priv->share_i2s_id = get_i2s_id_by_name(afe, of_str);
-	}
+	secondary_i2s_priv = get_i2s_priv_by_name(afe, secondary_i2s_name);
+	if (!secondary_i2s_priv)
+		return -EINVAL;
+
+	main_i2s_id = get_i2s_id_by_name(afe, main_i2s_name);
+	if (main_i2s_id < 0)
+		return main_i2s_id;
+
+	secondary_i2s_priv->share_i2s_id = main_i2s_id;
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(mt8186_dai_i2s_set_share);
 
 static int mt8186_dai_i2s_set_priv(struct mtk_base_afe *afe)
 {
@@ -1226,10 +1227,5 @@ int mt8186_dai_i2s_register(struct mtk_base_afe *afe)
 	if (ret)
 		return ret;
 
-	/* parse share i2s */
-	ret = mt8186_dai_i2s_get_share(afe);
-	if (ret)
-		return ret;
-
 	return 0;
 }

sound/soc/mediatek/mt8186/mt8186-mt6366-da7219-max98357.c

@@ -54,6 +54,9 @@ static struct snd_soc_codec_conf mt8186_mt6366_da7219_max98357_codec_conf[] = {
 
 static int mt8186_da7219_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
 	struct mtk_soc_card_data *soc_card_data =
 		snd_soc_card_get_drvdata(rtd->card);
 	struct mt8186_mt6366_da7219_max98357_priv *priv = soc_card_data->mach_priv;
@@ -62,6 +65,12 @@ static int mt8186_da7219_init(struct snd_soc_pcm_runtime *rtd)
 		asoc_rtd_to_codec(rtd, 0)->component;
 	int ret;
 
+	ret = mt8186_dai_i2s_set_share(afe, "I2S1", "I2S0");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+
 	/* Enable Headset and 4 Buttons Jack detection */
 	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
 				    SND_JACK_HEADSET | SND_JACK_BTN_0 |
@@ -160,6 +169,9 @@ static const struct snd_soc_ops mt8186_da7219_i2s_ops = {
 
 static int mt8186_mt6366_da7219_max98357_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
 	struct snd_soc_component *cmpnt_codec =
 		asoc_rtd_to_codec(rtd, 0)->component;
 	struct mtk_soc_card_data *soc_card_data =
@@ -167,6 +179,12 @@ static int mt8186_mt6366_da7219_max98357_hdmi_init(struct snd_soc_pcm_runtime *r
 	struct mt8186_mt6366_da7219_max98357_priv *priv = soc_card_data->mach_priv;
 	int ret;
 
+	ret = mt8186_dai_i2s_set_share(afe, "I2S3", "I2S2");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+
 	ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT, &priv->hdmi_jack);
 	if (ret) {
 		dev_err(rtd->dev, "HDMI Jack creation failed: %d\n", ret);

sound/soc/mediatek/mt8186/mt8186-mt6366-rt1019-rt5682s.c

@@ -58,6 +58,9 @@ static struct snd_soc_codec_conf mt8186_mt6366_rt1019_rt5682s_codec_conf[] = {
 
 static int mt8186_rt5682s_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
 	struct mtk_soc_card_data *soc_card_data =
 		snd_soc_card_get_drvdata(rtd->card);
 	struct mt8186_mt6366_rt1019_rt5682s_priv *priv = soc_card_data->mach_priv;
@@ -66,6 +69,12 @@ static int mt8186_rt5682s_init(struct snd_soc_pcm_runtime *rtd)
 		asoc_rtd_to_codec(rtd, 0)->component;
 	int ret;
 
+	ret = mt8186_dai_i2s_set_share(afe, "I2S1", "I2S0");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+
 	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
 				    SND_JACK_HEADSET | SND_JACK_BTN_0 |
 				    SND_JACK_BTN_1 | SND_JACK_BTN_2 |
@@ -136,6 +145,9 @@ static const struct snd_soc_ops mt8186_rt5682s_i2s_ops = {
 
 static int mt8186_mt6366_rt1019_rt5682s_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
 	struct snd_soc_component *cmpnt_codec =
 		asoc_rtd_to_codec(rtd, 0)->component;
 	struct mtk_soc_card_data *soc_card_data =
@@ -143,6 +155,12 @@ static int mt8186_mt6366_rt1019_rt5682s_hdmi_init(struct snd_soc_pcm_runtime *rt
 	struct mt8186_mt6366_rt1019_rt5682s_priv *priv = soc_card_data->mach_priv;
 	int ret;
 
+	ret = mt8186_dai_i2s_set_share(afe, "I2S3", "I2S2");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+
 	ret = snd_soc_card_jack_new(rtd->card, "HDMI Jack", SND_JACK_LINEOUT, &priv->hdmi_jack);
 	if (ret) {
 		dev_err(rtd->dev, "HDMI Jack creation failed: %d\n", ret);

sound/soc/mediatek/mt8192/mt8192-afe-common.h

@@ -159,6 +159,9 @@ int mt8192_dai_src_register(struct mtk_base_afe *afe);
 int mt8192_dai_pcm_register(struct mtk_base_afe *afe);
 int mt8192_dai_tdm_register(struct mtk_base_afe *afe);
 
+int mt8192_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
+			     const char *secondary_i2s_name);
+
 unsigned int mt8192_general_rate_transform(struct device *dev,
 					   unsigned int rate);
 unsigned int mt8192_rate_transform(struct device *dev,

sound/soc/mediatek/mt8192/mt8192-dai-i2s.c

@@ -45,7 +45,6 @@ struct mtk_afe_i2s_priv {
 	int rate; /* for determine which apll to use */
 	int low_jitter_en;
 
-	const char *share_property_name;
 	int share_i2s_id;
 
 	int mclk_id;
@@ -1984,78 +1983,75 @@ static const struct mtk_afe_i2s_priv mt8192_i2s_priv[DAI_I2S_NUM] = {
 	[DAI_I2S0] = {
 		.id = MT8192_DAI_I2S_0,
 		.mclk_id = MT8192_I2S0_MCK,
-		.share_property_name = "i2s0-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S1] = {
 		.id = MT8192_DAI_I2S_1,
 		.mclk_id = MT8192_I2S1_MCK,
-		.share_property_name = "i2s1-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S2] = {
 		.id = MT8192_DAI_I2S_2,
 		.mclk_id = MT8192_I2S2_MCK,
-		.share_property_name = "i2s2-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S3] = {
 		.id = MT8192_DAI_I2S_3,
 		.mclk_id = MT8192_I2S3_MCK,
-		.share_property_name = "i2s3-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S5] = {
 		.id = MT8192_DAI_I2S_5,
 		.mclk_id = MT8192_I2S5_MCK,
-		.share_property_name = "i2s5-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S6] = {
 		.id = MT8192_DAI_I2S_6,
 		.mclk_id = MT8192_I2S6_MCK,
-		.share_property_name = "i2s6-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S7] = {
 		.id = MT8192_DAI_I2S_7,
 		.mclk_id = MT8192_I2S7_MCK,
-		.share_property_name = "i2s7-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S8] = {
 		.id = MT8192_DAI_I2S_8,
 		.mclk_id = MT8192_I2S8_MCK,
-		.share_property_name = "i2s8-share",
 		.share_i2s_id = -1,
 	},
 	[DAI_I2S9] = {
 		.id = MT8192_DAI_I2S_9,
 		.mclk_id = MT8192_I2S9_MCK,
-		.share_property_name = "i2s9-share",
 		.share_i2s_id = -1,
 	},
 };
 
-static int mt8192_dai_i2s_get_share(struct mtk_base_afe *afe)
+/**
+ * mt8192_dai_i2s_set_share() - Set up I2S ports to share a single clock.
+ * @afe: Pointer to &struct mtk_base_afe
+ * @main_i2s_name: The name of the I2S port that will provide the clock
+ * @secondary_i2s_name: The name of the I2S port that will use this clock
+ */
+int mt8192_dai_i2s_set_share(struct mtk_base_afe *afe, const char *main_i2s_name,
+			     const char *secondary_i2s_name)
 {
-	struct mt8192_afe_private *afe_priv = afe->platform_priv;
-	const struct device_node *of_node = afe->dev->of_node;
-	const char *of_str;
-	const char *property_name;
-	struct mtk_afe_i2s_priv *i2s_priv;
-	int i;
+	struct mtk_afe_i2s_priv *secondary_i2s_priv;
+	int main_i2s_id;
 
-	for (i = 0; i < DAI_I2S_NUM; i++) {
-		i2s_priv = afe_priv->dai_priv[mt8192_i2s_priv[i].id];
-		property_name = mt8192_i2s_priv[i].share_property_name;
-		if (of_property_read_string(of_node, property_name, &of_str))
-			continue;
-		i2s_priv->share_i2s_id = get_i2s_id_by_name(afe, of_str);
-	}
+	secondary_i2s_priv = get_i2s_priv_by_name(afe, secondary_i2s_name);
+	if (!secondary_i2s_priv)
+		return -EINVAL;
+
+	main_i2s_id = get_i2s_id_by_name(afe, main_i2s_name);
+	if (main_i2s_id < 0)
+		return main_i2s_id;
+
+	secondary_i2s_priv->share_i2s_id = main_i2s_id;
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(mt8192_dai_i2s_set_share);
 
 static int mt8192_dai_i2s_set_priv(struct mtk_base_afe *afe)
 {
@@ -2101,10 +2097,5 @@ int mt8192_dai_i2s_register(struct mtk_base_afe *afe)
 	if (ret)
 		return ret;
 
-	/* parse share i2s */
-	ret = mt8192_dai_i2s_get_share(afe);
-	if (ret)
-		return ret;
-
 	return 0;
 }

sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c

@@ -311,12 +311,21 @@ static int mt8192_mt6359_init(struct snd_soc_pcm_runtime *rtd)
 
 static int mt8192_rt5682_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct snd_soc_component *cmpnt_afe =
+		snd_soc_rtdcom_lookup(rtd, AFE_PCM_NAME);
+	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt_afe);
 	struct snd_soc_component *cmpnt_codec =
 		asoc_rtd_to_codec(rtd, 0)->component;
 	struct mt8192_mt6359_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 	struct snd_soc_jack *jack = &priv->headset_jack;
 	int ret;
 
+	ret = mt8192_dai_i2s_set_share(afe, "I2S8", "I2S9");
+	if (ret) {
+		dev_err(rtd->dev, "Failed to set up shared clocks\n");
+		return ret;
+	}
+
 	ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
 				    SND_JACK_HEADSET | SND_JACK_BTN_0 |
 				    SND_JACK_BTN_1 | SND_JACK_BTN_2 |