[PATCH v3 00/12] ASoC: mediatek: mt8189: Improve error handling

[PATCH v3 00/12] ASoC: mediatek: mt8189: Improve error handling

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

Hi all,

This series addresses part of the error handling in the MT8189 AFE driver.

It propagates errors from clock operations and runtime resume, validates
clock parameters, and removes redundant error messages.

In v2, there was discussion about checking the return value of 
regmap_update_bits(). While opinions differed, the existing driver already 
checks it in mt8189_afe_enable_top_cg(), which is used by 
mt8189_apll1_enable() and mt8189_apll2_enable() touched by this series.

Therefore, I keep these checks and add the corresponding error paths for 
consistency.

Compile-tested only.

Link v1 : 
https://lore.kernel.org/all/20260910125742.150902-1-phucduc.bui@gmail.com/
Link v2:
https://lore.kernel.org/all/20260914072842.24420-1-phucduc.bui@gmail.com/

Changes in v2:
 - Update the names of the goto labels.
 - Check for zero frequency since freq is unsigned. 
Changes in v3:
 - Add Angelo's Reviewed-by tag.
 - Restore the existing afe->regmap checks, 
   making the separate patch for missing regmap unnecessary.
 - Do not pre-initialize ret; set ret = 0 in the default case throughout 
   the series.

Best regards,
Phuc

bui duc phuc (12):
  ASoC: mediatek: mt8189: Propagate APLL enable errors
  ASoC: mediatek: mt8189: Propagate MCK enable errors
  ASoC: mediatek: mt8189: Validate MCK ID
  ASoC: mediatek: mt8189: Propagate reg_rw clock errors
  ASoC: mediatek: mt8189: Use dev_err_probe() for clock errors
  ASoC: mediatek: mt8189: Propagate runtime resume errors
  ASoC: mediatek: mt8189: Remove redundant error message
  ASoC: mediatek: mt8189: Propagate APLL errors
  ASoC: mediatek: mt8189: Propagate MCLK errors
  ASoC: mediatek: mt8189: Validate sysclk frequency
  ASoC: mediatek: mt8189: Propagate TDM clock errors
  ASoC: mediatek: mt8189: Validate TDM MCLK frequency

 sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 134 +++++++++++++++------
 sound/soc/mediatek/mt8189/mt8189-afe-pcm.c |  45 ++++---
 sound/soc/mediatek/mt8189/mt8189-dai-i2s.c |  18 ++-
 sound/soc/mediatek/mt8189/mt8189-dai-tdm.c |  19 ++-
 4 files changed, 154 insertions(+), 62 deletions(-)

-- 
2.43.0

[PATCH v3 01/12] ASoC: mediatek: mt8189: Propagate APLL enable errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mt8189_apll1_enable() and mt8189_apll2_enable() currently ignore
errors from regmap_update_bits() and do not clean up resources when
clock enable operations fail.

Propagate these errors and roll back the clocks and tuner state on
errors.

Fixes: dc637ffeed6c ("ASoC: mediatek: mt8189: support audio clock control")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v2:
 - Update the names of the goto labels.

 sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 78 ++++++++++++++++------
 1 file changed, 56 insertions(+), 22 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
index fc7a7a73b0cf..f088ccf80448 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
@@ -454,30 +454,47 @@ int mt8189_apll1_enable(struct mtk_base_afe *afe)
 
 	ret = mt8189_afe_enable_top_cg(afe, MT8189_CG_APLL1_CK);
 	if (ret)
-		return ret;
+		goto err_clear_mux_setting;
 
 	ret = mt8189_afe_enable_top_cg(afe, MT8189_PDN_APLL_TUNER1);
 	if (ret)
-		return ret;
+		goto err_disable_apll1_ck;
 
 	/* sel 44.1kHz:1, apll_div:7, upper bound:3 */
-	regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG,
-			   XTAL_EN_128FS_SEL_MASK_SFT | APLL_DIV_MASK_SFT |
-			   UPPER_BOUND_MASK_SFT,
-			   (0x1 << XTAL_EN_128FS_SEL_SFT) | (7 << APLL_DIV_SFT) |
-			   (3 << UPPER_BOUND_SFT));
+	ret = regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG,
+				 XTAL_EN_128FS_SEL_MASK_SFT | APLL_DIV_MASK_SFT |
+				 UPPER_BOUND_MASK_SFT,
+				 (0x1 << XTAL_EN_128FS_SEL_SFT) | (7 << APLL_DIV_SFT) |
+				 (3 << UPPER_BOUND_SFT));
+	if (ret)
+		goto err_disable_apll_tuner1;
 
 	/* apll1 freq tuner enable */
-	regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG,
-			   FREQ_TUNER_EN_MASK_SFT,
-			   0x1 << FREQ_TUNER_EN_SFT);
+	ret = regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG,
+				 FREQ_TUNER_EN_MASK_SFT,
+				 0x1 << FREQ_TUNER_EN_SFT);
+	if (ret)
+		goto err_disable_apll_tuner1;
 
 	/* audio apll1 on */
 	ret = mt8189_afe_enable_top_cg(afe, MT8189_AUDIO_APLL1_EN_ON);
 	if (ret)
-		return ret;
+		goto err_clear_freq_tuner_en;
 
 	return 0;
+
+err_clear_freq_tuner_en:
+	regmap_update_bits(afe->regmap, AFE_APLL1_TUNER_CFG,
+			   FREQ_TUNER_EN_MASK_SFT,
+			   0x0);
+err_disable_apll_tuner1:
+	mt8189_afe_disable_top_cg(afe, MT8189_PDN_APLL_TUNER1);
+err_disable_apll1_ck:
+	mt8189_afe_disable_top_cg(afe, MT8189_CG_APLL1_CK);
+err_clear_mux_setting:
+	apll1_mux_setting(afe, false);
+
+	return ret;
 }
 
 void mt8189_apll1_disable(struct mtk_base_afe *afe)
@@ -506,30 +523,47 @@ int mt8189_apll2_enable(struct mtk_base_afe *afe)
 
 	ret = mt8189_afe_enable_top_cg(afe, MT8189_CG_APLL2_CK);
 	if (ret)
-		return ret;
+		goto err_clear_mux_setting;
 
 	ret = mt8189_afe_enable_top_cg(afe, MT8189_PDN_APLL_TUNER2);
 	if (ret)
-		return ret;
+		goto err_disable_apll2_ck;
 
 	/* sel 48kHz: 2, apll_div: 7, upper bound: 3*/
-	regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG,
-			   XTAL_EN_128FS_SEL_MASK_SFT | APLL_DIV_MASK_SFT |
-			   UPPER_BOUND_MASK_SFT,
-			   (0x2 << XTAL_EN_128FS_SEL_SFT) | (7 << APLL_DIV_SFT) |
-			   (3 << UPPER_BOUND_SFT));
+	ret = regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG,
+				 XTAL_EN_128FS_SEL_MASK_SFT | APLL_DIV_MASK_SFT |
+				 UPPER_BOUND_MASK_SFT,
+				 (0x2 << XTAL_EN_128FS_SEL_SFT) | (7 << APLL_DIV_SFT) |
+				 (3 << UPPER_BOUND_SFT));
+	if (ret)
+		goto err_disable_apll_tuner2;
 
 	/* apll2 freq tuner enable */
-	regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG,
-			   FREQ_TUNER_EN_MASK_SFT,
-			   0x1 << FREQ_TUNER_EN_SFT);
+	ret = regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG,
+				 FREQ_TUNER_EN_MASK_SFT,
+				 0x1 << FREQ_TUNER_EN_SFT);
+	if (ret)
+		goto err_disable_apll_tuner2;
 
 	/* audio apll2 on */
 	ret = mt8189_afe_enable_top_cg(afe, MT8189_AUDIO_APLL2_EN_ON);
 	if (ret)
-		return ret;
+		goto err_clear_freq_tuner_en;
 
 	return 0;
+
+err_clear_freq_tuner_en:
+	regmap_update_bits(afe->regmap, AFE_APLL2_TUNER_CFG,
+			   FREQ_TUNER_EN_MASK_SFT,
+			   0x0);
+err_disable_apll_tuner2:
+	mt8189_afe_disable_top_cg(afe, MT8189_PDN_APLL_TUNER2);
+err_disable_apll2_ck:
+	mt8189_afe_disable_top_cg(afe, MT8189_CG_APLL2_CK);
+err_clear_mux_setting:
+	apll2_mux_setting(afe, false);
+
+	return ret;
 }
 
 void mt8189_apll2_disable(struct mtk_base_afe *afe)
-- 
2.43.0

[PATCH v3 02/12] ASoC: mediatek: mt8189: Propagate MCK enable errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mt8189_mck_enable() currently returns without restoring the clock
state when setting the clock parent, enabling the divider, or setting
the divider rate fails.

Propagate the error and disable clocks enabled by the function.

Fixes: dc637ffeed6c ("ASoC: mediatek: mt8189: support audio clock control")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v2:
 - Update the names of the goto labels.

 sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
index f088ccf80448..56362c4756c9 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
@@ -639,7 +639,7 @@ int mt8189_mck_enable(struct mtk_base_afe *afe, int mck_id, int rate)
 		ret = mt8189_afe_set_clk_parent(afe, afe_priv->clk[m_sel_id],
 						afe_priv->clk[apll_clk_id]);
 		if (ret)
-			return ret;
+			goto err_disable_m_sel_clk;
 	}
 
 	/* enable div, set rate */
@@ -650,13 +650,21 @@ int mt8189_mck_enable(struct mtk_base_afe *afe, int mck_id, int rate)
 
 	ret = mt8189_afe_enable_clk(afe, afe_priv->clk[div_clk_id]);
 	if (ret)
-		return ret;
+		goto err_disable_m_sel_clk;
 
 	ret = mt8189_afe_set_clk_rate(afe, afe_priv->clk[div_clk_id], rate);
 	if (ret)
-		return ret;
+		goto err_disable_div_clk;
 
 	return 0;
+
+err_disable_div_clk:
+	mt8189_afe_disable_clk(afe, afe_priv->clk[div_clk_id]);
+err_disable_m_sel_clk:
+	if (m_sel_id >= 0)
+		mt8189_afe_disable_clk(afe, afe_priv->clk[m_sel_id]);
+
+	return ret;
 }
 
 int mt8189_mck_disable(struct mtk_base_afe *afe, int mck_id)
-- 
2.43.0

[PATCH v3 03/12] ASoC: mediatek: mt8189: Validate MCK ID

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mt8189_mck_disable() only checks for negative MCK IDs.
Reject IDs outside the valid MCK range as well.

Fixes: dc637ffeed6c ("ASoC: mediatek: mt8189: support audio clock control")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v3:
 - Add Angelo's Reviewed-by tag.

 sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
index 56362c4756c9..7fe9d01006d5 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
@@ -675,8 +675,8 @@ int mt8189_mck_disable(struct mtk_base_afe *afe, int mck_id)
 
 	dev_dbg(afe->dev, "mck_id: %d.\n", mck_id);
 
-	if (mck_id < 0) {
-		dev_err(afe->dev, "mck_id = %d < 0\n", mck_id);
+	if (mck_id >= MT8189_MCK_NUM || mck_id < 0) {
+		dev_err(afe->dev, "mck_id = %d\n", mck_id);
 		return -EINVAL;
 	}
 
-- 
2.43.0

[PATCH v3 04/12] ASoC: mediatek: mt8189: Propagate reg_rw clock errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mt8189_afe_enable_reg_rw_clk() currently ignores errors from clock
enable and parent operations.

Propagate these errors and clean up the clocks before returning the
error.

Fixes: dc637ffeed6c ("ASoC: mediatek: mt8189: support audio clock control")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v2:
 - Update the names of the goto labels.

 sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 31 +++++++++++++++++-----
 1 file changed, 25 insertions(+), 6 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
index 7fe9d01006d5..1132c924158d 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
@@ -700,17 +700,36 @@ int mt8189_mck_disable(struct mtk_base_afe *afe, int mck_id)
 int mt8189_afe_enable_reg_rw_clk(struct mtk_base_afe *afe)
 {
 	struct mt8189_afe_private *afe_priv = afe->platform_priv;
+	int ret;
 
 	/* bus clock for AFE internal access, like AFE SRAM */
-	mt8189_afe_enable_clk(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIOINTBUS]);
-	mt8189_afe_set_clk_parent(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIOINTBUS],
-				  afe_priv->clk[MT8189_CLK_TOP_CLK26M]);
+	ret = mt8189_afe_enable_clk(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIOINTBUS]);
+	if (ret)
+		return ret;
+
+	ret = mt8189_afe_set_clk_parent(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIOINTBUS],
+					afe_priv->clk[MT8189_CLK_TOP_CLK26M]);
+	if (ret)
+		goto err_disable_audiointbus_clk;
+
 	/* enable audio clock source */
-	mt8189_afe_enable_clk(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIO_H]);
-	mt8189_afe_set_clk_parent(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIO_H],
-				  afe_priv->clk[MT8189_CLK_TOP_CLK26M]);
+	ret = mt8189_afe_enable_clk(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIO_H]);
+	if (ret)
+		goto err_disable_audiointbus_clk;
+
+	ret = mt8189_afe_set_clk_parent(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIO_H],
+					afe_priv->clk[MT8189_CLK_TOP_CLK26M]);
+	if (ret)
+		goto err_disable_audio_h_clk;
 
 	return 0;
+
+err_disable_audio_h_clk:
+	mt8189_afe_disable_clk(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIO_H]);
+err_disable_audiointbus_clk:
+	mt8189_afe_disable_clk(afe, afe_priv->clk[MT8189_CLK_TOP_MUX_AUDIOINTBUS]);
+
+	return ret;
 }
 
 int mt8189_afe_disable_reg_rw_clk(struct mtk_base_afe *afe)
-- 
2.43.0

[PATCH v3 05/12] ASoC: mediatek: mt8189: Use dev_err_probe() for clock errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

Use dev_err_probe() when obtaining clocks to avoid redundant error
messages, particularly for probe deferral.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v3:
 - Add Angelo's Reviewed-by tag.

 sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
index 1132c924158d..594c214fa697 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-clk.c
@@ -793,10 +793,9 @@ int mt8189_init_clock(struct mtk_base_afe *afe)
 
 	for (i = 0; i < MT8189_CLK_NUM; i++) {
 		afe_priv->clk[i] = devm_clk_get(afe->dev, aud_clks[i]);
-		if (IS_ERR(afe_priv->clk[i])) {
-			dev_err(afe->dev, "devm_clk_get %s fail\n", aud_clks[i]);
-			return PTR_ERR(afe_priv->clk[i]);
-		}
+		if (IS_ERR(afe_priv->clk[i]))
+			return dev_err_probe(afe->dev, PTR_ERR(afe_priv->clk[i]),
+					     "failed to get clock %s\n", aud_clks[i]);
 	}
 
 	ret = mt8189_afe_disable_apll(afe);
-- 
2.43.0

[PATCH v3 06/12] ASoC: mediatek: mt8189: Propagate runtime resume errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mt8189_afe_runtime_resume() currently ignores errors from regmap
operations and mt8189_afe_enable_main_clock().

Propagate these errors and clean up the state before returning the
error.

Fixes: 7eb153585598 ("ASoC: mediatek: mt8189: add platform driver")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v2:
 - Update the names of the goto labels.
Changes in v3:
 - Add Angelo's Reviewed-by tag.
 - Restore the existing afe->regmap checks.

 sound/soc/mediatek/mt8189/mt8189-afe-pcm.c | 32 ++++++++++++++++++----
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c b/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c
index 77cf2b604f6c..39cc2804ad4c 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c
@@ -2332,20 +2332,40 @@ static int mt8189_afe_runtime_resume(struct device *dev)
 	}
 
 	regcache_cache_only(afe->regmap, false);
-	regcache_sync(afe->regmap);
+	ret = regcache_sync(afe->regmap);
+	if (ret)
+		goto err_set_cache_only;
 
 	/* set audio 26M request */
-	regmap_update_bits(afe->regmap, AFE_SPM_CONTROL_REQ, 0x1, 0x1);
-	regmap_update_bits(afe->regmap, AFE_CBIP_CFG0, 0x1, 0x1);
+	ret = regmap_update_bits(afe->regmap, AFE_SPM_CONTROL_REQ, 0x1, 0x1);
+	if (ret)
+		goto err_set_cache_only;
+
+	ret = regmap_update_bits(afe->regmap, AFE_CBIP_CFG0, 0x1, 0x1);
+	if (ret)
+		goto err_clear_26m_req;
 
 	/* force cpu use 8_24 format when writing 32bit data */
-	regmap_update_bits(afe->regmap, AFE_MEMIF_CON0,
-			   CPU_HD_ALIGN_MASK_SFT, 0 << CPU_HD_ALIGN_SFT);
+	ret = regmap_update_bits(afe->regmap, AFE_MEMIF_CON0,
+				 CPU_HD_ALIGN_MASK_SFT, 0 << CPU_HD_ALIGN_SFT);
+	if (ret)
+		goto err_clear_26m_req;
 
 	/* enable AFE */
-	mt8189_afe_enable_main_clock(afe);
+	ret = mt8189_afe_enable_main_clock(afe);
+	if (ret)
+		goto err_clear_26m_req;
 
 	return 0;
+
+err_clear_26m_req:
+	regmap_update_bits(afe->regmap,
+			   AFE_SPM_CONTROL_REQ, 0x1, 0x0);
+err_set_cache_only:
+	regcache_cache_only(afe->regmap, true);
+	mt8189_afe_disable_reg_rw_clk(afe);
+
+	return ret;
 }
 
 static int mt8189_afe_component_probe(struct snd_soc_component *component)
-- 
2.43.0

[PATCH v3 07/12] ASoC: mediatek: mt8189: Remove redundant error message

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

The errors handled here are already reported by the called functions,
either directly or deeper in the call chain. Therefore, the additional
dev_err() and dev_err_probe() call is redundant and can be removed.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v3:
 - Add Angelo's Reviewed-by tag.

 sound/soc/mediatek/mt8189/mt8189-afe-pcm.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c b/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c
index 39cc2804ad4c..11dba86c3e81 100644
--- a/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c
+++ b/sound/soc/mediatek/mt8189/mt8189-afe-pcm.c
@@ -2486,13 +2486,12 @@ static int mt8189_afe_pcm_dev_probe(struct platform_device *pdev)
 
 	afe->base_addr = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(afe->base_addr))
-		return dev_err_probe(dev, PTR_ERR(afe->base_addr),
-				     "AFE base_addr not found\n");
+		return PTR_ERR(afe->base_addr);
 
 	/* init audio related clock */
 	ret = mt8189_init_clock(afe);
 	if (ret)
-		return dev_err_probe(dev, ret, "init clock error.\n");
+		return ret;
 
 	/* init memif */
 	/* IPM2.0 no need banding */
@@ -2526,13 +2525,13 @@ static int mt8189_afe_pcm_dev_probe(struct platform_device *pdev)
 	/* request irq */
 	irq_id = platform_get_irq(pdev, 0);
 	if (irq_id < 0)
-		return dev_err_probe(dev, irq_id, "no irq found");
+		return irq_id;
 
 	ret = devm_request_irq(dev, irq_id, mt8189_afe_irq_handler,
 			       IRQF_TRIGGER_NONE,
 			       "Afe_ISR_Handle", afe);
 	if (ret)
-		return dev_err_probe(dev, ret, "could not request_irq for Afe_ISR_Handle\n");
+		return ret;
 
 	/* init sub_dais */
 	INIT_LIST_HEAD(&afe->sub_dais);
@@ -2601,10 +2600,8 @@ static int mt8189_afe_pcm_dev_probe(struct platform_device *pdev)
 					      &mt8189_afe_component,
 					      afe->dai_drivers,
 					      afe->num_dai_drivers);
-	if (ret) {
-		dev_err(dev, "afe component err: %d\n", ret);
+	if (ret)
 		return ret;
-	}
 
 	return 0;
 
-- 
2.43.0

[PATCH v3 08/12] ASoC: mediatek: mt8189: Propagate APLL errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mtk_apll_event() currently ignores errors returned by the APLL
enable functions.

Propagate these errors.

Fixes: 7eb153585598 ("ASoC: mediatek: mt8189: add platform driver")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---
 sound/soc/mediatek/mt8189/mt8189-dai-i2s.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
index 94c49a662e2d..4826ee250d70 100644
--- a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
+++ b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
@@ -485,6 +485,7 @@ static int mtk_apll_event(struct snd_soc_dapm_widget *w,
 {
 	struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
 	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
+	int ret;
 
 	dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x\n",
 		__func__, w->name, event);
@@ -492,9 +493,11 @@ static int mtk_apll_event(struct snd_soc_dapm_widget *w,
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
 		if (strcmp(w->name, APLL1_W_NAME) == 0)
-			mt8189_apll1_enable(afe);
+			ret = mt8189_apll1_enable(afe);
 		else
-			mt8189_apll2_enable(afe);
+			ret = mt8189_apll2_enable(afe);
+		if (ret)
+			return ret;
 		break;
 	case SND_SOC_DAPM_POST_PMD:
 		if (strcmp(w->name, APLL1_W_NAME) == 0)
-- 
2.43.0

[PATCH v3 09/12] ASoC: mediatek: mt8189: Propagate MCLK errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mtk_mclk_en_event() currently ignores errors returned by the MCK
enable and disable functions.

Propagate these errors.

Fixes: 7eb153585598 ("ASoC: mediatek: mt8189: add platform driver")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v3:
 - Add Angelo's Reviewed-by tag.
 - Do not pre-initialize ret; set ret = 0 in the default case.

 sound/soc/mediatek/mt8189/mt8189-dai-i2s.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
index 4826ee250d70..8cd5ddf62d46 100644
--- a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
+++ b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
@@ -519,6 +519,7 @@ static int mtk_mclk_en_event(struct snd_soc_dapm_widget *w,
 	struct snd_soc_component *cmpnt = snd_soc_dapm_to_component(w->dapm);
 	struct mtk_base_afe *afe = snd_soc_component_get_drvdata(cmpnt);
 	struct mtk_afe_i2s_priv *i2s_priv;
+	int ret;
 
 	dev_dbg(cmpnt->dev, "%s(), name %s, event 0x%x\n",
 		__func__, w->name, event);
@@ -529,17 +530,18 @@ static int mtk_mclk_en_event(struct snd_soc_dapm_widget *w,
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		mt8189_mck_enable(afe, i2s_priv->mclk_id, i2s_priv->mclk_rate);
+		ret = mt8189_mck_enable(afe, i2s_priv->mclk_id, i2s_priv->mclk_rate);
 		break;
 	case SND_SOC_DAPM_POST_PMD:
 		i2s_priv->mclk_rate = 0;
-		mt8189_mck_disable(afe, i2s_priv->mclk_id);
+		ret = mt8189_mck_disable(afe, i2s_priv->mclk_id);
 		break;
 	default:
+		ret = 0;
 		break;
 	}
 
-	return 0;
+	return ret;
 }
 
 static const struct snd_soc_dapm_widget mtk_dai_i2s_widgets[] = {
-- 
2.43.0

[PATCH v3 10/12] ASoC: mediatek: mt8189: Validate sysclk frequency

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

A zero frequency causes a modulo-by-zero error when validating the
I2S clock frequency. Reject it before performing the validation.

Fixes: 7eb153585598 ("ASoC: mediatek: mt8189: add platform driver")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v2:
 - Check for zero frequency since freq is unsigned. 
Changes in v3:
 - Add Angelo's Reviewed-by tag.

 sound/soc/mediatek/mt8189/mt8189-dai-i2s.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
index 8cd5ddf62d46..c9e80ef42f60 100644
--- a/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
+++ b/sound/soc/mediatek/mt8189/mt8189-dai-i2s.c
@@ -1287,6 +1287,9 @@ static int mtk_dai_i2s_set_sysclk(struct snd_soc_dai *dai,
 	    dir != SND_SOC_CLOCK_OUT)
 		return -EINVAL;
 
+	if (!freq)
+		return -EINVAL;
+
 	i2s_priv = afe_priv->dai_priv[dai->id];
 	if (!i2s_priv)
 		return -EINVAL;
-- 
2.43.0

[PATCH v3 11/12] ASoC: mediatek: mt8189: Propagate TDM clock errors

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mtk_tdm_bck_en_event() and mtk_tdm_mck_en_event() currently ignore
errors returned by the MCK enable and disable functions.

Propagate these errors.

Fixes: 9f202872ba04 ("ASoC: mediatek: mt8189: support TDM in platform driver")
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v3:
 - Do not pre-initialize ret; set ret = 0 in the default case.

 sound/soc/mediatek/mt8189/mt8189-dai-tdm.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c b/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c
index 5d68a55ccc45..9aebd0320614 100644
--- a/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c
+++ b/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c
@@ -261,22 +261,24 @@ static int mtk_tdm_bck_en_event(struct snd_soc_dapm_widget *w,
 	struct mt8189_afe_private *afe_priv = afe->platform_priv;
 	int dai_id = get_tdm_id_by_name(w->name);
 	struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
+	int ret;
 
 	dev_dbg(cmpnt->dev, "name %s, event 0x%x, dai_id %d, bck: %d\n",
 		w->name, event, dai_id, tdm_priv->bck_rate);
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		mt8189_mck_enable(afe, tdm_priv->bck_id, tdm_priv->bck_rate);
+		ret = mt8189_mck_enable(afe, tdm_priv->bck_id, tdm_priv->bck_rate);
 		break;
 	case SND_SOC_DAPM_POST_PMD:
-		mt8189_mck_disable(afe, tdm_priv->bck_id);
+		ret = mt8189_mck_disable(afe, tdm_priv->bck_id);
 		break;
 	default:
+		ret = 0;
 		break;
 	}
 
-	return 0;
+	return ret;
 }
 
 static int mtk_tdm_mck_en_event(struct snd_soc_dapm_widget *w,
@@ -288,23 +290,25 @@ static int mtk_tdm_mck_en_event(struct snd_soc_dapm_widget *w,
 	struct mt8189_afe_private *afe_priv = afe->platform_priv;
 	int dai_id = get_tdm_id_by_name(w->name);
 	struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai_id];
+	int ret;
 
 	dev_dbg(cmpnt->dev, "name %s, event 0x%x, dai_id %d, mclk %d\n",
 		w->name, event, dai_id, tdm_priv->mclk_rate);
 
 	switch (event) {
 	case SND_SOC_DAPM_PRE_PMU:
-		mt8189_mck_enable(afe, tdm_priv->mclk_id, tdm_priv->mclk_rate);
+		ret = mt8189_mck_enable(afe, tdm_priv->mclk_id, tdm_priv->mclk_rate);
 		break;
 	case SND_SOC_DAPM_POST_PMD:
 		tdm_priv->mclk_rate = 0;
-		mt8189_mck_disable(afe, tdm_priv->mclk_id);
+		ret = mt8189_mck_disable(afe, tdm_priv->mclk_id);
 		break;
 	default:
+		ret = 0;
 		break;
 	}
 
-	return 0;
+	return ret;
 }
 
 static const struct snd_soc_dapm_widget mtk_dai_tdm_widgets[] = {
-- 
2.43.0

[PATCH v3 12/12] ASoC: mediatek: mt8189: Validate TDM MCLK frequency

[phucduc.bui]

From: bui duc phuc <phucduc.bui@gmail.com>

mtk_dai_tdm_cal_mclk() accepts zero or negative frequencies.
Reject invalid frequencies before configuring the TDM clock.

Fixes: 9f202872ba04 ("ASoC: mediatek: mt8189: support TDM in platform driver")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
---

Changes in v3:
 - Add Angelo's Reviewed-by tag.

 sound/soc/mediatek/mt8189/mt8189-dai-tdm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c b/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c
index 9aebd0320614..e113c52fe06a 100644
--- a/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c
+++ b/sound/soc/mediatek/mt8189/mt8189-dai-tdm.c
@@ -383,6 +383,9 @@ static int mtk_dai_tdm_cal_mclk(struct mtk_base_afe *afe,
 	int apll;
 	int apll_rate;
 
+	if (freq <= 0)
+		return -EINVAL;
+
 	apll = mt8189_get_apll_by_rate(afe, freq);
 	apll_rate = mt8189_get_apll_rate(afe, apll);
 
-- 
2.43.0

Re: [PATCH v3 00/12] ASoC: mediatek: mt8189: Improve error handling

[AngeloGioacchino Del Regno]

On 9/16/26 07:00, phucduc.bui@gmail.com wrote:
> From: bui duc phuc <phucduc.bui@gmail.com>
> 
> Hi all,
> 
> This series addresses part of the error handling in the MT8189 AFE driver.
> 
> It propagates errors from clock operations and runtime resume, validates
> clock parameters, and removes redundant error messages.
> 
> In v2, there was discussion about checking the return value of
> regmap_update_bits(). While opinions differed, the existing driver already
> checks it in mt8189_afe_enable_top_cg(), which is used by
> mt8189_apll1_enable() and mt8189_apll2_enable() touched by this series.
> 
> Therefore, I keep these checks and add the corresponding error paths for
> consistency.
> 
> Compile-tested only.

Series is

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

Cheers,
Angelo

> 
> Link v1 :
> https://lore.kernel.org/all/20260910125742.150902-1-phucduc.bui@gmail.com/
> Link v2:
> https://lore.kernel.org/all/20260914072842.24420-1-phucduc.bui@gmail.com/
> 
> Changes in v2:
>   - Update the names of the goto labels.
>   - Check for zero frequency since freq is unsigned.
> Changes in v3:
>   - Add Angelo's Reviewed-by tag.
>   - Restore the existing afe->regmap checks,
>     making the separate patch for missing regmap unnecessary.
>   - Do not pre-initialize ret; set ret = 0 in the default case throughout
>     the series.
> 
> Best regards,
> Phuc
> 
> bui duc phuc (12):
>    ASoC: mediatek: mt8189: Propagate APLL enable errors
>    ASoC: mediatek: mt8189: Propagate MCK enable errors
>    ASoC: mediatek: mt8189: Validate MCK ID
>    ASoC: mediatek: mt8189: Propagate reg_rw clock errors
>    ASoC: mediatek: mt8189: Use dev_err_probe() for clock errors
>    ASoC: mediatek: mt8189: Propagate runtime resume errors
>    ASoC: mediatek: mt8189: Remove redundant error message
>    ASoC: mediatek: mt8189: Propagate APLL errors
>    ASoC: mediatek: mt8189: Propagate MCLK errors
>    ASoC: mediatek: mt8189: Validate sysclk frequency
>    ASoC: mediatek: mt8189: Propagate TDM clock errors
>    ASoC: mediatek: mt8189: Validate TDM MCLK frequency
> 
>   sound/soc/mediatek/mt8189/mt8189-afe-clk.c | 134 +++++++++++++++------
>   sound/soc/mediatek/mt8189/mt8189-afe-pcm.c |  45 ++++---
>   sound/soc/mediatek/mt8189/mt8189-dai-i2s.c |  18 ++-
>   sound/soc/mediatek/mt8189/mt8189-dai-tdm.c |  19 ++-
>   4 files changed, 154 insertions(+), 62 deletions(-)
>