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ASoC: rt5514: reset dma_offset at hw_params

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dma_offset needs reset every time otherwise for consecutive PCM
open the last dma_offset value will cause incorrect pointer position
be reported to user space.

Signed-off-by: Hsin-Yu Chao <hychao@chromium.org>
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
oder_chiou@realtek.com 2017-08-07 18:39:32 +08:00 committed by Mark Brown
parent 818010dac0
commit b56bff43a9
1 changed files with 1 additions and 1 deletions
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2
sound/soc/codecs/rt5514-spi.c
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@ -151,7 +151,6 @@ static irqreturn_t rt5514_spi_irq(int irq, void *data)
u8 buf[8];
rt5514_dsp->get_size = 0;
rt5514_dsp->dma_offset = 0;
/**
* The address area x1800XXXX is the register address, and it cannot
@ -205,6 +204,7 @@ static int rt5514_spi_hw_params(struct snd_pcm_substream *substream,
ret = snd_pcm_lib_alloc_vmalloc_buffer(substream,
params_buffer_bytes(hw_params));
rt5514_dsp->substream = substream;
rt5514_dsp->dma_offset = 0;
mutex_unlock(&rt5514_dsp->dma_lock);
return ret;