[ALSA] hda-intel - Disable DMA position auto-correction

HDA Intel driver
Disable the auto-correction of DMA position temporarily.
It doesn't work as expected yet...

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 9590ece..6fe696e 100644 (file)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1137,6 +1137,7 @@ static snd_pcm_uframes_t azx_pcm_pointer(snd_pcm_substream_t *substream)
                pos = azx_sd_readl(azx_dev, SD_LPIB);
                if (chip->position_fix == POS_FIX_FIFO)
                        pos += azx_dev->fifo_size;
+#if 0 /* disabled temprarily, auto-correction doesn't work well... */
                else if (chip->position_fix == POS_FIX_AUTO && azx_dev->period_updating) {
                        /* check the validity of DMA position */
                        unsigned int diff = 0;
@@ -1157,6 +1158,10 @@ static snd_pcm_uframes_t azx_pcm_pointer(snd_pcm_substream_t *substream)
                        }
                        azx_dev->period_updating = 0;
                }
+#else
+               else if (chip->position_fix == POS_FIX_AUTO)
+                       pos += azx_dev->fifo_size;
+#endif
        }
        if (pos >= azx_dev->bufsize)
                pos = 0;