linux-kernel - [PATCH 2/2] ASoC: amd: closing specific instance.

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Date:   Thu, 18 Jun 2020 12:56:52 +0530
From:   Ravulapati Vishnu vardhan rao 
        <Vishnuvardhanrao.Ravulapati@....com>
To:     unlisted-recipients:; (no To-header on input)
CC:     <Alexander.Deucher@....com>,
        Ravulapati Vishnu vardhan rao 
        <Vishnuvardhanrao.Ravulapati@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        "Takashi Iwai" <tiwai@...e.com>,
        Akshu Agrawal <akshu.agrawal@....com>,
        "Vijendar Mukunda" <Vijendar.Mukunda@....com>,
        Colin Ian King <colin.king@...onical.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 2/2] ASoC: amd: closing specific instance.

The steps to reproduce:

Record from the internal mic :
(arecord -D hw:1,2 -f dat /dev/null -V stereos)

Record from the headphone mic:
(arecord -D hw:1,0 -f dat /dev/null -V stereos)

Kill the recording from internal mic.
We can see the recording from the headphone mic is broken.

This patch rectifies the issue reported.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@....com>
---
 sound/soc/amd/raven/acp3x-pcm-dma.c | 30 ++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index d8f554f369a8..e6386de20ac7 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -342,11 +342,34 @@ static int acp3x_dma_close(struct snd_soc_component *component,
 {
 	struct snd_soc_pcm_runtime *prtd;
 	struct i2s_dev_data *adata;
+	struct i2s_stream_instance *ins;
 
 	prtd = substream->private_data;
 	component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
 	adata = dev_get_drvdata(component->dev);
+	ins = substream->runtime->private_data;
+	if (!ins)
+		return -EINVAL;
 
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		switch (ins->i2s_instance) {
+		case I2S_BT_INSTANCE:
+			adata->play_stream = NULL;
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			adata->i2ssp_play_stream = NULL;
+		}
+	} else {
+		switch (ins->i2s_instance) {
+		case I2S_BT_INSTANCE:
+			adata->capture_stream = NULL;
+			break;
+		case I2S_SP_INSTANCE:
+		default:
+			adata->i2ssp_capture_stream = NULL;
+		}
+	}
 
 	/* Disable ACP irq, when the current stream is being closed and
 	 * another stream is also not active.
@@ -354,13 +377,6 @@ static int acp3x_dma_close(struct snd_soc_component *component,
 	if (!adata->play_stream && !adata->capture_stream &&
 		!adata->i2ssp_play_stream && !adata->i2ssp_capture_stream)
 		rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB);
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		adata->play_stream = NULL;
-		adata->i2ssp_play_stream = NULL;
-	} else {
-		adata->capture_stream = NULL;
-		adata->i2ssp_capture_stream = NULL;
-	}
 	return 0;
 }
 
-- 
2.17.1