ALSA: hda - Fix bdl_pos_adj value for ATI SB chipsets
ATI SB controllers seem to report the DMA ahead in the amount of FIFO.
Thus bdl_pos_adj should be 32 for them as default.
Also, the default value is set to -1, which means to make the driver
to choose the appropriate value.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index ddae3c47..9b2dc06 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -55,7 +55,7 @@
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static char *model[SNDRV_CARDS];
static int position_fix[SNDRV_CARDS];
-static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = 1};
+static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int single_cmd;
static int enable_msi;
@@ -2013,6 +2013,18 @@
chip->single_cmd = single_cmd;
+ if (bdl_pos_adj[dev] < 0) {
+ switch (chip->driver_type) {
+ case AZX_DRIVER_ATI:
+ case AZX_DRIVER_ATIHDMI:
+ bdl_pos_adj[dev] = 32;
+ break;
+ default:
+ bdl_pos_adj[dev] = 1;
+ break;
+ }
+ }
+
#if BITS_PER_LONG != 64
/* Fix up base address on ULI M5461 */
if (chip->driver_type == AZX_DRIVER_ULI) {