diff options
Diffstat (limited to 'sound/hda/hdac_stream.c')
| -rw-r--r-- | sound/hda/hdac_stream.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/sound/hda/hdac_stream.c b/sound/hda/hdac_stream.c index a38a2af1654f..abe7a1b16fe1 100644 --- a/sound/hda/hdac_stream.c +++ b/sound/hda/hdac_stream.c @@ -150,9 +150,12 @@ void snd_hdac_stream_reset(struct hdac_stream *azx_dev) { unsigned char val; int timeout; + int dma_run_state; snd_hdac_stream_clear(azx_dev); + dma_run_state = snd_hdac_stream_readb(azx_dev, SD_CTL) & SD_CTL_DMA_START; + snd_hdac_stream_updateb(azx_dev, SD_CTL, 0, SD_CTL_STREAM_RESET); udelay(3); timeout = 300; @@ -162,6 +165,10 @@ void snd_hdac_stream_reset(struct hdac_stream *azx_dev) if (val) break; } while (--timeout); + + if (azx_dev->bus->dma_stop_delay && dma_run_state) + udelay(azx_dev->bus->dma_stop_delay); + val &= ~SD_CTL_STREAM_RESET; snd_hdac_stream_writeb(azx_dev, SD_CTL, val); udelay(3); |