ALSA: hda - Align BDL position adjustment parameter
It seems NVidia and other hardwares require the alignment for period
update timing. For satisfying this condition, align the position
adjustment for delayed wake-up to the initial bdl_pos_adj value.
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 16715a6..ef9f072 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1047,9 +1047,13 @@
pos_adj = bdl_pos_adj[chip->dev_index];
if (pos_adj > 0) {
struct snd_pcm_runtime *runtime = substream->runtime;
+ int pos_align = pos_adj;
pos_adj = (pos_adj * runtime->rate + 47999) / 48000;
if (!pos_adj)
- pos_adj = 1;
+ pos_adj = pos_align;
+ else
+ pos_adj = ((pos_adj + pos_align - 1) / pos_align) *
+ pos_align;
pos_adj = frames_to_bytes(runtime, pos_adj);
if (pos_adj >= period_bytes) {
snd_printk(KERN_WARNING "Too big adjustment %d\n",