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| author | Olivier Moysan <olivier.moysan@st.com> | 2019-02-26 14:51:06 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-02-26 15:41:17 +0000 |
| commit | ebf629d502cf7aa138b86f36dc016faf6c8e39e3 (patch) | |
| tree | a12a630de5dcef07afb64901d761c56f78c5c906 /sound | |
| parent | 0c4c68d6fa1bae74d450e50823c24fcc3cd0b171 (diff) | |
| download | blackbird-op-linux-ebf629d502cf7aa138b86f36dc016faf6c8e39e3.tar.gz blackbird-op-linux-ebf629d502cf7aa138b86f36dc016faf6c8e39e3.zip | |
ASoC: stm32: i2s: fix stream count management
Move counter handling to trigger start section
to manage multiple start/stop events.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/stm/stm32_i2s.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c index 7d4c67433916..7f56d7b51ba3 100644 --- a/sound/soc/stm/stm32_i2s.c +++ b/sound/soc/stm/stm32_i2s.c @@ -554,10 +554,6 @@ static int stm32_i2s_startup(struct snd_pcm_substream *substream, return ret; } - spin_lock(&i2s->lock_fd); - i2s->refcount++; - spin_unlock(&i2s->lock_fd); - return regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG, I2S_IFCR_MASK, I2S_IFCR_MASK); } @@ -613,18 +609,19 @@ static int stm32_i2s_trigger(struct snd_pcm_substream *substream, int cmd, regmap_write_bits(i2s->regmap, STM32_I2S_IFCR_REG, I2S_IFCR_MASK, I2S_IFCR_MASK); + spin_lock(&i2s->lock_fd); + i2s->refcount++; if (playback_flg) { ier = I2S_IER_UDRIE; } else { ier = I2S_IER_OVRIE; - spin_lock(&i2s->lock_fd); if (i2s->refcount == 1) /* dummy write to trigger capture */ regmap_write(i2s->regmap, STM32_I2S_TXDR_REG, 0); - spin_unlock(&i2s->lock_fd); } + spin_unlock(&i2s->lock_fd); if (STM32_I2S_IS_SLAVE(i2s)) ier |= I2S_IER_TIFREIE; @@ -649,7 +646,6 @@ static int stm32_i2s_trigger(struct snd_pcm_substream *substream, int cmd, spin_unlock(&i2s->lock_fd); break; } - spin_unlock(&i2s->lock_fd); dev_dbg(cpu_dai->dev, "stop I2S\n"); @@ -657,8 +653,10 @@ static int stm32_i2s_trigger(struct snd_pcm_substream *substream, int cmd, I2S_CR1_SPE, 0); if (ret < 0) { dev_err(cpu_dai->dev, "Error %d disabling I2S\n", ret); + spin_unlock(&i2s->lock_fd); return ret; } + spin_unlock(&i2s->lock_fd); cfg1_mask = I2S_CFG1_RXDMAEN | I2S_CFG1_TXDMAEN; regmap_update_bits(i2s->regmap, STM32_I2S_CFG1_REG, |
