The value of period_bytes will get the zero before the hw_params() is not
run completely. Move the function snd_pcm_lib_period_bytes() to copy work,
and make sure that is not zero.
Signed-off-by: Oder Chiou <oder_chiou@xxxxxxxxxxx>
---
sound/soc/codecs/rt5514-spi.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c
index 6478d10..4d46f45 100644
--- a/sound/soc/codecs/rt5514-spi.c
+++ b/sound/soc/codecs/rt5514-spi.c
@@ -91,6 +91,14 @@ static void rt5514_spi_copy_work(struct work_struct *work)
runtime = rt5514_dsp->substream->runtime;
period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream);
+ if (!period_bytes) {
+ schedule_delayed_work(&rt5514_dsp->copy_work, 5);
+ goto done;
+ }
+
+ if (rt5514_dsp->buf_size % period_bytes)
+ rt5514_dsp->buf_size = (rt5514_dsp->buf_size / period_bytes) *
+ period_bytes;
if (rt5514_dsp->get_size >= rt5514_dsp->buf_size) {
rt5514_spi_burst_read(RT5514_BUFFER_VOICE_WP, (u8 *)&buf,
@@ -149,13 +157,11 @@ static void rt5514_spi_copy_work(struct work_struct *work)
static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp)
{
- size_t period_bytes;
u8 buf[8];
if (!rt5514_dsp->substream)
return;
- period_bytes = snd_pcm_lib_period_bytes(rt5514_dsp->substream);
rt5514_dsp->get_size = 0;
/**
@@ -183,10 +189,6 @@ static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp)
rt5514_dsp->buf_size = rt5514_dsp->buf_limit - rt5514_dsp->buf_base;
- if (rt5514_dsp->buf_size % period_bytes)
- rt5514_dsp->buf_size = (rt5514_dsp->buf_size / period_bytes) *
- period_bytes;
-
if (rt5514_dsp->buf_base && rt5514_dsp->buf_limit &&
rt5514_dsp->buf_rp && rt5514_dsp->buf_size)
schedule_delayed_work(&rt5514_dsp->copy_work, 0);
--
2.7.4
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