ASoC: amd: Enabling I2S instance in DMA and DAI

This patch adds I2S SP support in ACP PCM DMA and DAI.
Added I2S support in DMA and DAI probe,its hw_params handling
its open and close functionalities.
This enables to open and close on the SP instance for
playback and capture.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
Link: https://lore.kernel.org/r/1577540460-21438-3-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 102 insertions, 21 deletions

diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c
index d9bc0fc63185..368e4c855268 100644
--- a/sound/soc/amd/raven/acp3x-i2s.c
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -27,10 +27,10 @@ static int acp3x_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 	mode = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
 	switch (mode) {
 	case SND_SOC_DAIFMT_I2S:
-		adata->tdm_mode = false;
+		adata->tdm_mode = TDM_DISABLE;
 		break;
 	case SND_SOC_DAIFMT_DSP_A:
-		adata->tdm_mode = true;
+		adata->tdm_mode = TDM_ENABLE;
 		break;
 	default:
 		return -EINVAL;
@@ -86,10 +86,22 @@ static int acp3x_i2s_hwparams(struct snd_pcm_substream *substream,
 	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
 {
 	struct i2s_stream_instance *rtd;
+	struct snd_soc_pcm_runtime *prtd;
+	struct snd_soc_card *card;
+	struct acp3x_platform_info *pinfo;
 	u32 val;
 	u32 reg_val;
 
+	prtd = substream->private_data;
 	rtd = substream->runtime->private_data;
+	card = prtd->card;
+	pinfo = snd_soc_card_get_drvdata(card);
+	if (pinfo) {
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			rtd->i2s_instance = pinfo->play_i2s_instance;
+		else
+			rtd->i2s_instance = pinfo->cap_i2s_instance;
+	}
 
 	/* These values are as per Hardware Spec */
 	switch (params_format(params)) {
@@ -109,11 +121,25 @@ static int acp3x_i2s_hwparams(struct snd_pcm_substream *substream,
 	default:
 		return -EINVAL;
 	}
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		reg_val = mmACP_BTTDM_ITER;
-	else
-		reg_val = mmACP_BTTDM_IRER;
-
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		switch (rtd->i2s_instance) {
+		case I2S_BT_INSTANCE:
+			reg_val = mmACP_BTTDM_ITER;
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			reg_val = mmACP_I2STDM_ITER;
+		}
+	} else {
+		switch (rtd->i2s_instance) {
+		case I2S_BT_INSTANCE:
+			reg_val = mmACP_BTTDM_IRER;
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			reg_val = mmACP_I2STDM_IRER;
+		}
+	}
 	val = rv_readl(rtd->acp3x_base + reg_val);
 	val = val | (rtd->xfer_resolution  << 3);
 	rv_writel(val, rtd->acp3x_base + reg_val);
@@ -124,10 +150,21 @@ static int acp3x_i2s_trigger(struct snd_pcm_substream *substream,
 				int cmd, struct snd_soc_dai *dai)
 {
 	struct i2s_stream_instance *rtd;
-	u32 val, period_bytes;
-	int ret, reg_val;
+	struct snd_soc_pcm_runtime *prtd;
+	struct snd_soc_card *card;
+	struct acp3x_platform_info *pinfo;
+	u32 ret, val, period_bytes, reg_val, ier_val, water_val;
 
+	prtd = substream->private_data;
 	rtd = substream->runtime->private_data;
+	card = prtd->card;
+	pinfo = snd_soc_card_get_drvdata(card);
+	if (pinfo) {
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			rtd->i2s_instance = pinfo->play_i2s_instance;
+		else
+			rtd->i2s_instance = pinfo->cap_i2s_instance;
+	}
 	period_bytes = frames_to_bytes(substream->runtime,
 			substream->runtime->period_size);
 	switch (cmd) {
@@ -137,31 +174,75 @@ static int acp3x_i2s_trigger(struct snd_pcm_substream *substream,
 		rtd->bytescount = acp_get_byte_count(rtd,
 						substream->stream);
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			reg_val = mmACP_BTTDM_ITER;
-			rv_writel(period_bytes, rtd->acp3x_base +
-					mmACP_BT_TX_INTR_WATERMARK_SIZE);
+			switch (rtd->i2s_instance) {
+			case I2S_BT_INSTANCE:
+				water_val =
+					mmACP_BT_TX_INTR_WATERMARK_SIZE;
+				reg_val = mmACP_BTTDM_ITER;
+				ier_val = mmACP_BTTDM_IER;
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				water_val =
+					mmACP_I2S_TX_INTR_WATERMARK_SIZE;
+				reg_val = mmACP_I2STDM_ITER;
+				ier_val = mmACP_I2STDM_IER;
+			}
 		} else {
-			reg_val = mmACP_BTTDM_IRER;
-			rv_writel(period_bytes, rtd->acp3x_base +
-					mmACP_BT_RX_INTR_WATERMARK_SIZE);
+			switch (rtd->i2s_instance) {
+			case I2S_BT_INSTANCE:
+				water_val =
+					mmACP_BT_RX_INTR_WATERMARK_SIZE;
+				reg_val = mmACP_BTTDM_IRER;
+				ier_val = mmACP_BTTDM_IER;
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				water_val =
+					mmACP_I2S_RX_INTR_WATERMARK_SIZE;
+				reg_val = mmACP_I2STDM_IRER;
+				ier_val = mmACP_I2STDM_IER;
+			}
 		}
+		rv_writel(period_bytes, rtd->acp3x_base + water_val);
 		val = rv_readl(rtd->acp3x_base + reg_val);
 		val = val | BIT(0);
 		rv_writel(val, rtd->acp3x_base + reg_val);
-		rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER);
+		rv_writel(1, rtd->acp3x_base + ier_val);
+		ret = 0;
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			reg_val = mmACP_BTTDM_ITER;
-		else
-			reg_val = mmACP_BTTDM_IRER;
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			switch (rtd->i2s_instance) {
+			case I2S_BT_INSTANCE:
+				reg_val = mmACP_BTTDM_ITER;
+				ier_val = mmACP_BTTDM_IER;
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				reg_val = mmACP_I2STDM_ITER;
+				ier_val = mmACP_I2STDM_IER;
+			}
 
+		} else {
+			switch (rtd->i2s_instance) {
+			case I2S_BT_INSTANCE:
+				reg_val = mmACP_BTTDM_IRER;
+				ier_val = mmACP_BTTDM_IER;
+				break;
+			case I2S_SP_INSTANCE:
+			default:
+				reg_val = mmACP_I2STDM_IRER;
+				ier_val = mmACP_I2STDM_IER;
+			}
+		}
 		val = rv_readl(rtd->acp3x_base + reg_val);
 		val = val & ~BIT(0);
 		rv_writel(val, rtd->acp3x_base + reg_val);
-		rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER);
+		rv_writel(0, rtd->acp3x_base + ier_val);
+		ret = 0;
 		break;
 	default:
 		ret = -EINVAL;