[PATCH 0/2] ASoC: MediaTek: fix mt8183-mt6358 tdm out issues

[PATCH 0/2] ASoC: MediaTek: fix mt8183-mt6358 tdm out issues

[Jiaxin Yu]

These two patches are used to fix several issues related to TDM OUT.
The patches are based on broonie tre "for-next" branch.

Jiaxin Yu (2):
  ASoC: mediatek: mt8183: switch tdm pins gpio function when playback on
    or off
  ASoC: mediatek: mt8183: fix tdm out issue

 sound/soc/mediatek/common/mtk-afe-fe-dai.c         |   3 +-
 sound/soc/mediatek/mt8183/mt8183-dai-tdm.c         | 177 +++++++++++++++++----
 .../mt8183/mt8183-mt6358-ts3a227-max98357.c        | 118 +++++++++++++-
 sound/soc/mediatek/mt8183/mt8183-reg.h             |   8 +-
 4 files changed, 261 insertions(+), 45 deletions(-)

-- 
1.8.1.1.dirty

[PATCH 1/2] ASoC: mediatek: mt8183: switch tdm pins gpio function when playback on or off

[Jiaxin Yu]

Pull TDM pins down when TDM BE shutdown to avoid current leakage.

Signed-off-by: Jiaxin Yu <jiaxin.yu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
 .../mt8183/mt8183-mt6358-ts3a227-max98357.c        | 115 +++++++++++++++++++--
 1 file changed, 109 insertions(+), 6 deletions(-)

diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
index 272766c..fe8a746 100644
--- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
@@ -46,6 +46,32 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
+static const struct snd_soc_dapm_widget
+mt8183_mt6358_ts3a227_max98357_dapm_widgets[] = {
+	SND_SOC_DAPM_OUTPUT("IT6505_8CH"),
+};
+
+static const struct snd_soc_dapm_route
+mt8183_mt6358_ts3a227_max98357_dapm_routes[] = {
+	{"IT6505_8CH", NULL, "TDM"},
+};
+
+enum PINCTRL_PIN_STATE {
+	PIN_STATE_DEFAULT = 0,
+	PIN_TDM_OUT_ON,
+	PIN_TDM_OUT_OFF,
+	PIN_STATE_MAX
+};
+
+static const char * const mt8183_pin_str[PIN_STATE_MAX] = {
+	"default", "aud_tdm_out_on", "aud_tdm_out_off",
+};
+
+struct mt8183_mt6358_ts3a227_max98357_priv {
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *pin_states[PIN_STATE_MAX];
+};
+
 static int
 mt8183_mt6358_ts3a227_max98357_bt_sco_startup(
 	struct snd_pcm_substream *substream)
@@ -173,6 +199,47 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
 
+static int mt8183_mt6358_tdm_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct mt8183_mt6358_ts3a227_max98357_priv *priv =
+		snd_soc_card_get_drvdata(rtd->card);
+	int ret;
+
+	if (IS_ERR(priv->pin_states[PIN_TDM_OUT_ON]))
+		return PTR_ERR(priv->pin_states[PIN_TDM_OUT_ON]);
+
+	ret = pinctrl_select_state(priv->pinctrl,
+				   priv->pin_states[PIN_TDM_OUT_ON]);
+	if (ret)
+		dev_err(rtd->card->dev, "%s failed to select state %d\n",
+			__func__, ret);
+
+	return ret;
+}
+
+static void mt8183_mt6358_tdm_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct mt8183_mt6358_ts3a227_max98357_priv *priv =
+		snd_soc_card_get_drvdata(rtd->card);
+	int ret;
+
+	if (IS_ERR(priv->pin_states[PIN_TDM_OUT_OFF]))
+		return;
+
+	ret = pinctrl_select_state(priv->pinctrl,
+				   priv->pin_states[PIN_TDM_OUT_OFF]);
+	if (ret)
+		dev_err(rtd->card->dev, "%s failed to select state %d\n",
+			__func__, ret);
+}
+
+static struct snd_soc_ops mt8183_mt6358_tdm_ops = {
+	.startup = mt8183_mt6358_tdm_startup,
+	.shutdown = mt8183_mt6358_tdm_shutdown,
+};
+
 static struct snd_soc_dai_link
 mt8183_mt6358_ts3a227_max98357_dai_links[] = {
 	/* FE */
@@ -325,6 +392,8 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 		.no_pcm = 1,
 		.dpcm_playback = 1,
 		.ignore_suspend = 1,
+		.be_hw_params_fixup = mt8183_i2s_hw_params_fixup,
+		.ops = &mt8183_mt6358_tdm_ops,
 		SND_SOC_DAILINK_REG(tdm),
 	},
 };
@@ -371,7 +440,8 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	struct snd_soc_card *card = &mt8183_mt6358_ts3a227_max98357_card;
 	struct device_node *platform_node;
 	struct snd_soc_dai_link *dai_link;
-	struct pinctrl *default_pins;
+	struct mt8183_mt6358_ts3a227_max98357_priv *priv;
+	int ret;
 	int i;
 
 	card->dev = &pdev->dev;
@@ -397,12 +467,45 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 		card->num_aux_devs = 1;
 	}
 
-	default_pins =
-		devm_pinctrl_get_select(&pdev->dev, PINCTRL_STATE_DEFAULT);
-	if (IS_ERR(default_pins)) {
-		dev_err(&pdev->dev, "%s set pins failed\n",
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	priv->pinctrl = devm_pinctrl_get(&pdev->dev);
+	if (IS_ERR(priv->pinctrl)) {
+		dev_err(&pdev->dev, "%s devm_pinctrl_get failed\n",
 			__func__);
-		return PTR_ERR(default_pins);
+		return PTR_ERR(priv->pinctrl);
+	}
+
+	for (i = 0 ; i < PIN_STATE_MAX ; i++) {
+		priv->pin_states[i] = pinctrl_lookup_state(priv->pinctrl,
+							   mt8183_pin_str[i]);
+		if (IS_ERR(priv->pin_states[i])) {
+			ret = PTR_ERR(priv->pin_states[i]);
+			dev_info(&pdev->dev, "%s Can't find pin state %s %d\n",
+				 __func__, mt8183_pin_str[i], ret);
+		}
+	}
+
+	if (!IS_ERR(priv->pin_states[PIN_TDM_OUT_OFF])) {
+		ret = pinctrl_select_state(priv->pinctrl,
+					   priv->pin_states[PIN_TDM_OUT_OFF]);
+		if (ret)
+			dev_info(&pdev->dev,
+				 "%s failed to select state %d\n",
+				 __func__, ret);
+	}
+
+	if (!IS_ERR(priv->pin_states[PIN_STATE_DEFAULT])) {
+		ret = pinctrl_select_state(priv->pinctrl,
+					   priv->pin_states[PIN_STATE_DEFAULT]);
+		if (ret)
+			dev_info(&pdev->dev,
+				 "%s failed to select state %d\n",
+				 __func__, ret);
 	}
 
 	return devm_snd_soc_register_card(&pdev->dev, card);
-- 
1.8.1.1.dirty

Applied "ASoC: mediatek: mt8183: switch tdm pins gpio function when playback on or off" to the asoc tree

[Mark Brown]

The patch

   ASoC: mediatek: mt8183: switch tdm pins gpio function when playback on or off

has been applied to the asoc tree at

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From 6191cbde5ff02ef5307e7b2e4f5b8f7607c2b1df Mon Sep 17 00:00:00 2001
From: Jiaxin Yu <jiaxin.yu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Date: Thu, 22 Aug 2019 20:51:00 +0800
Subject: [PATCH] ASoC: mediatek: mt8183: switch tdm pins gpio function when
 playback on or off

Pull TDM pins down when TDM BE shutdown to avoid current leakage.

Signed-off-by: Jiaxin Yu <jiaxin.yu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
Link: https://lore.kernel.org/r/1566478261-13464-2-git-send-email-jiaxin.yu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org
Signed-off-by: Mark Brown <broonie-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
---
 .../mt8183/mt8183-mt6358-ts3a227-max98357.c   | 115 +++++++++++++++++-
 1 file changed, 109 insertions(+), 6 deletions(-)

diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
index 272766c1b859..fe8a7461ace5 100644
--- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
@@ -46,6 +46,32 @@ static int mt8183_i2s_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
+static const struct snd_soc_dapm_widget
+mt8183_mt6358_ts3a227_max98357_dapm_widgets[] = {
+	SND_SOC_DAPM_OUTPUT("IT6505_8CH"),
+};
+
+static const struct snd_soc_dapm_route
+mt8183_mt6358_ts3a227_max98357_dapm_routes[] = {
+	{"IT6505_8CH", NULL, "TDM"},
+};
+
+enum PINCTRL_PIN_STATE {
+	PIN_STATE_DEFAULT = 0,
+	PIN_TDM_OUT_ON,
+	PIN_TDM_OUT_OFF,
+	PIN_STATE_MAX
+};
+
+static const char * const mt8183_pin_str[PIN_STATE_MAX] = {
+	"default", "aud_tdm_out_on", "aud_tdm_out_off",
+};
+
+struct mt8183_mt6358_ts3a227_max98357_priv {
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *pin_states[PIN_STATE_MAX];
+};
+
 static int
 mt8183_mt6358_ts3a227_max98357_bt_sco_startup(
 	struct snd_pcm_substream *substream)
@@ -173,6 +199,47 @@ SND_SOC_DAILINK_DEFS(tdm,
 	DAILINK_COMP_ARRAY(COMP_DUMMY()),
 	DAILINK_COMP_ARRAY(COMP_EMPTY()));
 
+static int mt8183_mt6358_tdm_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct mt8183_mt6358_ts3a227_max98357_priv *priv =
+		snd_soc_card_get_drvdata(rtd->card);
+	int ret;
+
+	if (IS_ERR(priv->pin_states[PIN_TDM_OUT_ON]))
+		return PTR_ERR(priv->pin_states[PIN_TDM_OUT_ON]);
+
+	ret = pinctrl_select_state(priv->pinctrl,
+				   priv->pin_states[PIN_TDM_OUT_ON]);
+	if (ret)
+		dev_err(rtd->card->dev, "%s failed to select state %d\n",
+			__func__, ret);
+
+	return ret;
+}
+
+static void mt8183_mt6358_tdm_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct mt8183_mt6358_ts3a227_max98357_priv *priv =
+		snd_soc_card_get_drvdata(rtd->card);
+	int ret;
+
+	if (IS_ERR(priv->pin_states[PIN_TDM_OUT_OFF]))
+		return;
+
+	ret = pinctrl_select_state(priv->pinctrl,
+				   priv->pin_states[PIN_TDM_OUT_OFF]);
+	if (ret)
+		dev_err(rtd->card->dev, "%s failed to select state %d\n",
+			__func__, ret);
+}
+
+static struct snd_soc_ops mt8183_mt6358_tdm_ops = {
+	.startup = mt8183_mt6358_tdm_startup,
+	.shutdown = mt8183_mt6358_tdm_shutdown,
+};
+
 static struct snd_soc_dai_link
 mt8183_mt6358_ts3a227_max98357_dai_links[] = {
 	/* FE */
@@ -325,6 +392,8 @@ mt8183_mt6358_ts3a227_max98357_dai_links[] = {
 		.no_pcm = 1,
 		.dpcm_playback = 1,
 		.ignore_suspend = 1,
+		.be_hw_params_fixup = mt8183_i2s_hw_params_fixup,
+		.ops = &mt8183_mt6358_tdm_ops,
 		SND_SOC_DAILINK_REG(tdm),
 	},
 };
@@ -371,7 +440,8 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
 	struct snd_soc_card *card = &mt8183_mt6358_ts3a227_max98357_card;
 	struct device_node *platform_node;
 	struct snd_soc_dai_link *dai_link;
-	struct pinctrl *default_pins;
+	struct mt8183_mt6358_ts3a227_max98357_priv *priv;
+	int ret;
 	int i;
 
 	card->dev = &pdev->dev;
@@ -397,12 +467,45 @@ mt8183_mt6358_ts3a227_max98357_dev_probe(struct platform_device *pdev)
 		card->num_aux_devs = 1;
 	}
 
-	default_pins =
-		devm_pinctrl_get_select(&pdev->dev, PINCTRL_STATE_DEFAULT);
-	if (IS_ERR(default_pins)) {
-		dev_err(&pdev->dev, "%s set pins failed\n",
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	priv->pinctrl = devm_pinctrl_get(&pdev->dev);
+	if (IS_ERR(priv->pinctrl)) {
+		dev_err(&pdev->dev, "%s devm_pinctrl_get failed\n",
 			__func__);
-		return PTR_ERR(default_pins);
+		return PTR_ERR(priv->pinctrl);
+	}
+
+	for (i = 0 ; i < PIN_STATE_MAX ; i++) {
+		priv->pin_states[i] = pinctrl_lookup_state(priv->pinctrl,
+							   mt8183_pin_str[i]);
+		if (IS_ERR(priv->pin_states[i])) {
+			ret = PTR_ERR(priv->pin_states[i]);
+			dev_info(&pdev->dev, "%s Can't find pin state %s %d\n",
+				 __func__, mt8183_pin_str[i], ret);
+		}
+	}
+
+	if (!IS_ERR(priv->pin_states[PIN_TDM_OUT_OFF])) {
+		ret = pinctrl_select_state(priv->pinctrl,
+					   priv->pin_states[PIN_TDM_OUT_OFF]);
+		if (ret)
+			dev_info(&pdev->dev,
+				 "%s failed to select state %d\n",
+				 __func__, ret);
+	}
+
+	if (!IS_ERR(priv->pin_states[PIN_STATE_DEFAULT])) {
+		ret = pinctrl_select_state(priv->pinctrl,
+					   priv->pin_states[PIN_STATE_DEFAULT]);
+		if (ret)
+			dev_info(&pdev->dev,
+				 "%s failed to select state %d\n",
+				 __func__, ret);
 	}
 
 	return devm_snd_soc_register_card(&pdev->dev, card);
-- 
2.20.1

[PATCH 2/2] ASoC: mediatek: mt8183: fix tdm out issue

[Jiaxin Yu]

This patch fix two tdm out issues.
1. TDM out support S16_LE/S24_LE/S32_LE formats .When output S32_LE, we
   need set hd_align so that memif can output MSB 24bits correctly.
2. Fix TDM out hw_params as SNDRV_PCM_FORMAT_S32_LE.
3. Fix TDM out data is valid on rising edge.

Signed-off-by: Jiaxin Yu <jiaxin.yu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
 sound/soc/mediatek/common/mtk-afe-fe-dai.c         |   3 +-
 sound/soc/mediatek/mt8183/mt8183-dai-tdm.c         | 177 +++++++++++++++++----
 .../mt8183/mt8183-mt6358-ts3a227-max98357.c        |   3 +
 sound/soc/mediatek/mt8183/mt8183-reg.h             |   8 +-
 4 files changed, 152 insertions(+), 39 deletions(-)

diff --git a/sound/soc/mediatek/common/mtk-afe-fe-dai.c b/sound/soc/mediatek/common/mtk-afe-fe-dai.c
index d165634..10ea4fd 100644
--- a/sound/soc/mediatek/common/mtk-afe-fe-dai.c
+++ b/sound/soc/mediatek/common/mtk-afe-fe-dai.c
@@ -241,7 +241,7 @@ int mtk_afe_fe_prepare(struct snd_pcm_substream *substream,
 	struct mtk_base_afe *afe = snd_soc_dai_get_drvdata(dai);
 	struct mtk_base_afe_memif *memif = &afe->memif[rtd->cpu_dai->id];
 	int hd_audio = 0;
-	int hd_align = 1;
+	int hd_align = 0;
 
 	/* set hd mode */
 	switch (substream->runtime->format) {
@@ -254,7 +254,6 @@ int mtk_afe_fe_prepare(struct snd_pcm_substream *substream,
 		break;
 	case SNDRV_PCM_FORMAT_S24_LE:
 		hd_audio = 1;
-		hd_align = 0;
 		break;
 	default:
 		dev_err(afe->dev, "%s() error: unsupported format %d\n",
diff --git a/sound/soc/mediatek/mt8183/mt8183-dai-tdm.c b/sound/soc/mediatek/mt8183/mt8183-dai-tdm.c
index 8983d54a..0d69cf4 100644
--- a/sound/soc/mediatek/mt8183/mt8183-dai-tdm.c
+++ b/sound/soc/mediatek/mt8183/mt8183-dai-tdm.c
@@ -15,7 +15,9 @@
 struct mtk_afe_tdm_priv {
 	int bck_id;
 	int bck_rate;
-
+	int tdm_out_mode;
+	int bck_invert;
+	int lck_invert;
 	int mclk_id;
 	int mclk_multiple; /* according to sample rate */
 	int mclk_rate;
@@ -23,6 +25,21 @@ struct mtk_afe_tdm_priv {
 };
 
 enum {
+	TDM_OUT_I2S = 0,
+	TDM_OUT_TDM = 1,
+};
+
+enum {
+	TDM_BCK_NON_INV = 0,
+	TDM_BCK_INV = 1,
+};
+
+enum {
+	TDM_LCK_NON_INV = 0,
+	TDM_LCK_INV = 1,
+};
+
+enum {
 	TDM_WLEN_16_BIT = 1,
 	TDM_WLEN_32_BIT = 2,
 };
@@ -93,6 +110,25 @@ static unsigned int get_tdm_ch(unsigned int ch)
 	}
 }
 
+static unsigned int get_tdm_ch_fixup(unsigned int channels)
+{
+	if (channels > 4)
+		return 8;
+	else if (channels > 2)
+		return 4;
+	else
+		return 2;
+}
+
+static unsigned int get_tdm_ch_per_sdata(unsigned int mode,
+					 unsigned int channels)
+{
+	if (mode == TDM_OUT_TDM)
+		return get_tdm_ch_fixup(channels);
+	else
+		return 2;
+}
+
 /* interconnection */
 enum {
 	HDMI_CONN_CH0 = 0,
@@ -433,8 +469,11 @@ static int mtk_dai_tdm_hw_params(struct snd_pcm_substream *substream,
 	struct mt8183_afe_private *afe_priv = afe->platform_priv;
 	int tdm_id = dai->id;
 	struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[tdm_id];
+	unsigned int tdm_out_mode = tdm_priv->tdm_out_mode;
 	unsigned int rate = params_rate(params);
 	unsigned int channels = params_channels(params);
+	unsigned int out_channels_per_sdata =
+		get_tdm_ch_per_sdata(tdm_out_mode, channels);
 	snd_pcm_format_t format = params_format(params);
 	unsigned int tdm_con = 0;
 
@@ -448,7 +487,7 @@ static int mtk_dai_tdm_hw_params(struct snd_pcm_substream *substream,
 
 	/* calculate bck */
 	tdm_priv->bck_rate = rate *
-			     channels *
+			     out_channels_per_sdata *
 			     snd_pcm_format_physical_width(format);
 
 	if (tdm_priv->bck_rate > tdm_priv->mclk_rate)
@@ -461,50 +500,72 @@ static int mtk_dai_tdm_hw_params(struct snd_pcm_substream *substream,
 		 __func__,
 		 tdm_id, rate, channels, format,
 		 tdm_priv->mclk_rate, tdm_priv->bck_rate);
+	dev_info(afe->dev, "%s(), out_channels_per_sdata = %d\n",
+		 __func__, out_channels_per_sdata);
 
 	/* set tdm */
-	tdm_con = 1 << BCK_INVERSE_SFT;
-	tdm_con |= 1 << LRCK_INVERSE_SFT;
-	tdm_con |= 1 << DELAY_DATA_SFT;
+	if (tdm_priv->bck_invert)
+		regmap_update_bits(afe->regmap, AUDIO_TOP_CON3,
+				   BCK_INVERSE_MASK_SFT,
+				   0x1 << BCK_INVERSE_SFT);
+
+	if (tdm_priv->lck_invert)
+		tdm_con |= 1 << LRCK_INVERSE_SFT;
+
+	if (tdm_priv->tdm_out_mode == TDM_OUT_I2S) {
+		tdm_con |= 1 << DELAY_DATA_SFT;
+		tdm_con |= get_tdm_lrck_width(format) << LRCK_TDM_WIDTH_SFT;
+	} else if (tdm_priv->tdm_out_mode == TDM_OUT_TDM) {
+		tdm_con |= 0 << DELAY_DATA_SFT;
+		tdm_con |= 0 << LRCK_TDM_WIDTH_SFT;
+	}
+
 	tdm_con |= 1 << LEFT_ALIGN_SFT;
 	tdm_con |= get_tdm_wlen(format) << WLEN_SFT;
-	tdm_con |= get_tdm_ch(channels) << CHANNEL_NUM_SFT;
+	tdm_con |= get_tdm_ch(out_channels_per_sdata) << CHANNEL_NUM_SFT;
 	tdm_con |= get_tdm_channel_bck(format) << CHANNEL_BCK_CYCLES_SFT;
-	tdm_con |= get_tdm_lrck_width(format) << LRCK_TDM_WIDTH_SFT;
 	regmap_write(afe->regmap, AFE_TDM_CON1, tdm_con);
 
-	switch (channels) {
-	case 1:
-	case 2:
+	if (out_channels_per_sdata == 2) {
+		switch (channels) {
+		case 1:
+		case 2:
+			tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
+			tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
+			tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
+			tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
+			break;
+		case 3:
+		case 4:
+			tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
+			tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
+			tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
+			tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
+			break;
+		case 5:
+		case 6:
+			tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
+			tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
+			tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
+			tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
+			break;
+		case 7:
+		case 8:
+			tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
+			tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
+			tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
+			tdm_con |= TDM_CH_START_O36_O37 << ST_CH_PAIR_SOUT3_SFT;
+			break;
+		default:
+			tdm_con = 0;
+		}
+	} else {
 		tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
 		tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT1_SFT;
 		tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
 		tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
-		break;
-	case 3:
-	case 4:
-		tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
-		tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
-		tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT2_SFT;
-		tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
-		break;
-	case 5:
-	case 6:
-		tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
-		tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
-		tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
-		tdm_con |= TDM_CH_ZERO << ST_CH_PAIR_SOUT3_SFT;
-		break;
-	case 7:
-	case 8:
-		tdm_con = TDM_CH_START_O30_O31 << ST_CH_PAIR_SOUT0_SFT;
-		tdm_con |= TDM_CH_START_O32_O33 << ST_CH_PAIR_SOUT1_SFT;
-		tdm_con |= TDM_CH_START_O34_O35 << ST_CH_PAIR_SOUT2_SFT;
-		tdm_con |= TDM_CH_START_O36_O37 << ST_CH_PAIR_SOUT3_SFT;
-		break;
-	default:
-		tdm_con = 0;
 	}
+
 	regmap_write(afe->regmap, AFE_TDM_CON2, tdm_con);
 
 	regmap_update_bits(afe->regmap, AFE_HDMI_OUT_CON0,
@@ -573,10 +634,58 @@ static int mtk_dai_tdm_set_sysclk(struct snd_soc_dai *dai,
 	return mtk_dai_tdm_cal_mclk(afe, tdm_priv, freq);
 }
 
+static int mtk_dai_tdm_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct mtk_base_afe *afe = dev_get_drvdata(dai->dev);
+	struct mt8183_afe_private *afe_priv = afe->platform_priv;
+	struct mtk_afe_tdm_priv *tdm_priv = afe_priv->dai_priv[dai->id];
+
+	if (!tdm_priv) {
+		dev_warn(afe->dev, "%s(), tdm_priv == NULL", __func__);
+		return -EINVAL;
+	}
+
+	/* DAI mode*/
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		tdm_priv->tdm_out_mode = TDM_OUT_I2S;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		tdm_priv->tdm_out_mode = TDM_OUT_TDM;
+		break;
+	default:
+		tdm_priv->tdm_out_mode = TDM_OUT_I2S;
+	}
+
+	/* DAI clock inversion*/
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		tdm_priv->bck_invert = TDM_BCK_NON_INV;
+		tdm_priv->lck_invert = TDM_LCK_NON_INV;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		tdm_priv->bck_invert = TDM_BCK_NON_INV;
+		tdm_priv->lck_invert = TDM_LCK_INV;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		tdm_priv->bck_invert = TDM_BCK_INV;
+		tdm_priv->lck_invert = TDM_LCK_NON_INV;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+	default:
+		tdm_priv->bck_invert = TDM_BCK_INV;
+		tdm_priv->lck_invert = TDM_LCK_INV;
+		break;
+	}
+
+	return 0;
+}
+
 static const struct snd_soc_dai_ops mtk_dai_tdm_ops = {
 	.hw_params = mtk_dai_tdm_hw_params,
 	.trigger = mtk_dai_tdm_trigger,
 	.set_sysclk = mtk_dai_tdm_set_sysclk,
+	.set_fmt = mtk_dai_tdm_set_fmt,
 };
 
 /* dai driver */
diff --git a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
index fe8a746..0fed0fa 100644
--- a/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
+++ b/sound/soc/mediatek/mt8183/mt8183-mt6358-ts3a227-max98357.c
@@ -390,6 +390,9 @@ static void mt8183_mt6358_tdm_shutdown(struct snd_pcm_substream *substream)
 	{
 		.name = "TDM",
 		.no_pcm = 1,
+		.dai_fmt = SND_SOC_DAIFMT_I2S |
+			   SND_SOC_DAIFMT_IB_IF |
+			   SND_SOC_DAIFMT_CBM_CFM,
 		.dpcm_playback = 1,
 		.ignore_suspend = 1,
 		.be_hw_params_fixup = mt8183_i2s_hw_params_fixup,
diff --git a/sound/soc/mediatek/mt8183/mt8183-reg.h b/sound/soc/mediatek/mt8183/mt8183-reg.h
index e0482f2..e544a09 100644
--- a/sound/soc/mediatek/mt8183/mt8183-reg.h
+++ b/sound/soc/mediatek/mt8183/mt8183-reg.h
@@ -413,6 +413,11 @@
 #define AFE_MAX_REGISTER AFE_GENERAL2_ASRC_2CH_CON13
 #define AFE_IRQ_STATUS_BITS 0x1fff
 
+/* AUDIO_TOP_CON3 */
+#define BCK_INVERSE_SFT                              3
+#define BCK_INVERSE_MASK                             0x1
+#define BCK_INVERSE_MASK_SFT                         (0x1 << 3)
+
 /* AFE_DAC_CON0 */
 #define AWB2_ON_SFT                                   29
 #define AWB2_ON_MASK                                  0x1
@@ -1596,9 +1601,6 @@
 #define TDM_EN_SFT                                    0
 #define TDM_EN_MASK                                   0x1
 #define TDM_EN_MASK_SFT                               (0x1 << 0)
-#define BCK_INVERSE_SFT                               1
-#define BCK_INVERSE_MASK                              0x1
-#define BCK_INVERSE_MASK_SFT                          (0x1 << 1)
 #define LRCK_INVERSE_SFT                              2
 #define LRCK_INVERSE_MASK                             0x1
 #define LRCK_INVERSE_MASK_SFT                         (0x1 << 2)
-- 
1.8.1.1.dirty

Re: [PATCH 2/2] ASoC: mediatek: mt8183: fix tdm out issue

[Mark Brown]

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On Thu, Aug 22, 2019 at 08:51:01PM +0800, Jiaxin Yu wrote:
> This patch fix two tdm out issues.
> 1. TDM out support S16_LE/S24_LE/S32_LE formats .When output S32_LE, we
>    need set hd_align so that memif can output MSB 24bits correctly.
> 2. Fix TDM out hw_params as SNDRV_PCM_FORMAT_S32_LE.
> 3. Fix TDM out data is valid on rising edge.

These should really be split up into separate patches, each
fixing a single issue.  Ideally the changelog should describe
how the issue is fixed like that for 1 does.

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