ASoC: amd: renaming pcm substream names and bytescount params

With in ACP, There are three I2S controllers can be configured.
(I2S SP ,I2S MICSP and I2S BT).These controllers can
support both playback/capture scenarios.
Default enabled i2s controller instance is i2s sp instance.

Renamed stream names and bytescount params as i2ssp.
These changes required to distinguish with other I2S controller
instance pcm substreams and bytescount params.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/amd/acp-pcm-dma.c

@@ -662,7 +662,7 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
 				       1, 0);
 		acp_dma_start(acp_mmio, SYSRAM_TO_ACP_CH_NUM, false);
 
-		snd_pcm_period_elapsed(irq_data->play_stream);
+		snd_pcm_period_elapsed(irq_data->play_i2ssp_stream);
 
 		acp_reg_write((intr_flag & BIT(ACP_TO_I2S_DMA_CH_NUM)) << 16,
 				acp_mmio, mmACP_EXTERNAL_INTR_STAT);
@@ -685,7 +685,7 @@ static irqreturn_t dma_irq_handler(int irq, void *arg)
 
 	if ((intr_flag & BIT(ACP_TO_SYSRAM_CH_NUM)) != 0) {
 		valid_irq = true;
-		snd_pcm_period_elapsed(irq_data->capture_stream);
+		snd_pcm_period_elapsed(irq_data->capture_i2ssp_stream);
 		acp_reg_write((intr_flag & BIT(ACP_TO_SYSRAM_CH_NUM)) << 16,
 				acp_mmio, mmACP_EXTERNAL_INTR_STAT);
 	}
@@ -743,11 +743,11 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
 	 * This enablement is not required for another stream, if current
 	 * stream is not closed
 	*/
-	if (!intr_data->play_stream && !intr_data->capture_stream)
+	if (!intr_data->play_i2ssp_stream && !intr_data->capture_i2ssp_stream)
 		acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		intr_data->play_stream = substream;
+		intr_data->play_i2ssp_stream = substream;
 		/* For Stoney, Memory gating is disabled,i.e SRAM Banks
 		 * won't be turned off. The default state for SRAM banks is ON.
 		 * Setting SRAM bank state code skipped for STONEY platform.
@@ -758,7 +758,7 @@ static int acp_dma_open(struct snd_pcm_substream *substream)
 							bank, true);
 		}
 	} else {
-		intr_data->capture_stream = substream;
+		intr_data->capture_i2ssp_stream = substream;
 		if (intr_data->asic_type != CHIP_STONEY) {
 			for (bank = 5; bank <= 8; bank++)
 				acp_set_sram_bank_state(intr_data->acp_mmio,
@@ -857,11 +857,11 @@ static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
 	bytescount = acp_get_byte_count(rtd->acp_mmio, substream->stream);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (bytescount > rtd->renderbytescount)
-			bytescount = bytescount - rtd->renderbytescount;
+		if (bytescount > rtd->i2ssp_renderbytescount)
+			bytescount = bytescount - rtd->i2ssp_renderbytescount;
 	} else {
-		if (bytescount > rtd->capturebytescount)
-			bytescount = bytescount - rtd->capturebytescount;
+		if (bytescount > rtd->i2ssp_capturebytescount)
+			bytescount = bytescount - rtd->i2ssp_capturebytescount;
 	}
 	pos = do_div(bytescount, buffersize);
 	return bytes_to_frames(runtime, pos);
@@ -917,8 +917,8 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
 		bytescount = acp_get_byte_count(rtd->acp_mmio,
 						substream->stream);
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			if (rtd->renderbytescount == 0)
-				rtd->renderbytescount = bytescount;
+			if (rtd->i2ssp_renderbytescount == 0)
+				rtd->i2ssp_renderbytescount = bytescount;
 			acp_dma_start(rtd->acp_mmio,
 						SYSRAM_TO_ACP_CH_NUM, false);
 			while (acp_reg_read(rtd->acp_mmio, mmACP_DMA_CH_STS) &
@@ -935,8 +935,8 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
 					ACP_TO_I2S_DMA_CH_NUM, true);
 
 		} else {
-			if (rtd->capturebytescount == 0)
-				rtd->capturebytescount = bytescount;
+			if (rtd->i2ssp_capturebytescount == 0)
+				rtd->i2ssp_capturebytescount = bytescount;
 			acp_dma_start(rtd->acp_mmio,
 					    I2S_TO_ACP_DMA_CH_NUM, true);
 		}
@@ -953,11 +953,11 @@ static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 			ret = acp_dma_stop(rtd->acp_mmio,
 					ACP_TO_I2S_DMA_CH_NUM);
-			rtd->renderbytescount = 0;
+			rtd->i2ssp_renderbytescount = 0;
 		} else {
 			ret = acp_dma_stop(rtd->acp_mmio,
 					I2S_TO_ACP_DMA_CH_NUM);
-			rtd->capturebytescount = 0;
+			rtd->i2ssp_capturebytescount = 0;
 		}
 		break;
 	default:
@@ -1003,7 +1003,7 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
 	kfree(rtd);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		adata->play_stream = NULL;
+		adata->play_i2ssp_stream = NULL;
 		/* For Stoney, Memory gating is disabled,i.e SRAM Banks
 		 * won't be turned off. The default state for SRAM banks is ON.
 		 * Setting SRAM bank state code skipped for STONEY platform.
@@ -1015,7 +1015,7 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
 				false);
 		}
 	} else  {
-		adata->capture_stream = NULL;
+		adata->capture_i2ssp_stream = NULL;
 		if (adata->asic_type != CHIP_STONEY) {
 			for (bank = 5; bank <= 8; bank++)
 				acp_set_sram_bank_state(adata->acp_mmio, bank,
@@ -1026,7 +1026,7 @@ static int acp_dma_close(struct snd_pcm_substream *substream)
 	/* Disable ACP irq, when the current stream is being closed and
 	 * another stream is also not active.
 	*/
-	if (!adata->play_stream && !adata->capture_stream)
+	if (!adata->play_i2ssp_stream && !adata->capture_i2ssp_stream)
 		acp_reg_write(0, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);
 
 	return 0;
@@ -1076,8 +1076,9 @@ static int acp_audio_probe(struct platform_device *pdev)
 	 * and device doesn't generate any interrupts.
 	 */
 
-	audio_drv_data->play_stream = NULL;
-	audio_drv_data->capture_stream = NULL;
+	audio_drv_data->play_i2ssp_stream = NULL;
+	audio_drv_data->capture_i2ssp_stream = NULL;
+
 	audio_drv_data->asic_type =  *pdata;
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
@@ -1141,7 +1142,7 @@ static int acp_pcm_resume(struct device *dev)
 		return status;
 	}
 
-	if (adata->play_stream && adata->play_stream->runtime) {
+	if (adata->play_i2ssp_stream && adata->play_i2ssp_stream->runtime) {
 		/* For Stoney, Memory gating is disabled,i.e SRAM Banks
 		 * won't be turned off. The default state for SRAM banks is ON.
 		 * Setting SRAM bank state code skipped for STONEY platform.
@@ -1152,17 +1153,17 @@ static int acp_pcm_resume(struct device *dev)
 						true);
 		}
 		config_acp_dma(adata->acp_mmio,
-			adata->play_stream->runtime->private_data,
+			adata->play_i2ssp_stream->runtime->private_data,
 			adata->asic_type);
 	}
-	if (adata->capture_stream && adata->capture_stream->runtime) {
+	if (adata->capture_i2ssp_stream && adata->capture_i2ssp_stream->runtime) {
 		if (adata->asic_type != CHIP_STONEY) {
 			for (bank = 5; bank <= 8; bank++)
 				acp_set_sram_bank_state(adata->acp_mmio, bank,
 						true);
 		}
 		config_acp_dma(adata->acp_mmio,
-			adata->capture_stream->runtime->private_data,
+			adata->capture_i2ssp_stream->runtime->private_data,
 			adata->asic_type);
 	}
 	acp_reg_write(1, adata->acp_mmio, mmACP_EXTERNAL_INTR_ENB);

sound/soc/amd/acp.h

@@ -84,14 +84,14 @@ struct audio_substream_data {
 	u16 num_of_pages;
 	u16 direction;
 	uint64_t size;
-	u64 renderbytescount;
-	u64 capturebytescount;
+	u64 i2ssp_renderbytescount;
+	u64 i2ssp_capturebytescount;
 	void __iomem *acp_mmio;
 };
 
 struct audio_drv_data {
-	struct snd_pcm_substream *play_stream;
-	struct snd_pcm_substream *capture_stream;
+	struct snd_pcm_substream *play_i2ssp_stream;
+	struct snd_pcm_substream *capture_i2ssp_stream;
 	void __iomem *acp_mmio;
 	u32 asic_type;
 };