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Breaking the spinlock into two halves, and possible fix to spinlock issue

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This commit is contained in:
Hin-Tak Leung 2021-04-10 02:37:38 +01:00
parent eab694c170
commit 43b6034266
2 changed files with 5 additions and 4 deletions
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3
ac101.c
View file

@ -1258,6 +1258,7 @@ int ac101_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_codec *codec = dai->codec;
struct ac10x_priv *ac10x = snd_soc_codec_get_drvdata(codec);
int ret = 0;
unsigned long flags;
AC101_DBG("stream=%s cmd=%d\n",
snd_pcm_stream_str(substream),
@ -1268,6 +1269,7 @@ int ac101_trigger(struct snd_pcm_substream *substream, int cmd,
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
#if _MASTER_MULTI_CODEC == _MASTER_AC101
spin_lock_irqsave(&ac10x->lock, flags);
if (ac10x->aif1_clken == 0){
/*
* enable aif1clk, it' here due to reduce time between 'AC108 Sysclk Enable' and 'AC101 Sysclk Enable'
@ -1277,6 +1279,7 @@ int ac101_trigger(struct snd_pcm_substream *substream, int cmd,
ret = ret || ac101_update_bits(codec, MOD_CLK_ENA, (0x1<<MOD_CLK_AIF1), (0x1<<MOD_CLK_AIF1));
ret = ret || ac101_update_bits(codec, MOD_RST_CTRL, (0x1<<MOD_RESET_AIF1), (0x1<<MOD_RESET_AIF1));
}
spin_unlock_irqrestore(&ac10x->lock, flags);
#endif
break;
case SNDRV_PCM_TRIGGER_STOP:

6
ac108.c
View file

@ -1058,8 +1058,6 @@ static int ac108_trigger(struct snd_pcm_substream *substream, int cmd,
snd_pcm_stream_str(substream),
cmd);
spin_lock_irqsave(&ac10x->lock, flags);
if (ac10x->i2c101 && _MASTER_MULTI_CODEC == _MASTER_AC101) {
ac101_trigger(substream, cmd, dai);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
@ -1071,12 +1069,14 @@ static int ac108_trigger(struct snd_pcm_substream *substream, int cmd,
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
spin_lock_irqsave(&ac10x->lock, flags);
/* disable global clock if lrck disabled */
ac10x_read(I2S_CTRL, &r, ac10x->i2cmap[_MASTER_INDEX]);
if ((r & (0x01 << BCLK_IOEN)) && (r & (0x01 << LRCK_IOEN)) == 0) {
/* disable global clock */
ac108_multi_update_bits(I2S_CTRL, 0x1 << TXEN | 0x1 << GEN, 0x0 << TXEN | 0x0 << GEN, ac10x);
}
spin_unlock_irqrestore(&ac10x->lock, flags);
/* delayed clock starting, move to machine trigger() */
break;
@ -1089,8 +1089,6 @@ static int ac108_trigger(struct snd_pcm_substream *substream, int cmd,
}
__ret:
spin_unlock_irqrestore(&ac10x->lock, flags);
return ret;
}