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-rw-r--r--sound/pci/hda/hda_intel.c19
1 files changed, 17 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 565de38a3fc..d853e2c33bb 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -426,6 +426,7 @@ struct azx {
/* flags */
int position_fix;
+ int poll_count;
unsigned int running :1;
unsigned int initialized :1;
unsigned int single_cmd :1;
@@ -506,7 +507,7 @@ static char *driver_short_names[] __devinitdata = {
#define get_azx_dev(substream) (substream->runtime->private_data)
static int azx_acquire_irq(struct azx *chip, int do_disconnect);
-
+static int azx_send_cmd(struct hda_bus *bus, unsigned int val);
/*
* Interface for HD codec
*/
@@ -664,11 +665,12 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus,
{
struct azx *chip = bus->private_data;
unsigned long timeout;
+ int do_poll = 0;
again:
timeout = jiffies + msecs_to_jiffies(1000);
for (;;) {
- if (chip->polling_mode) {
+ if (chip->polling_mode || do_poll) {
spin_lock_irq(&chip->reg_lock);
azx_update_rirb(chip);
spin_unlock_irq(&chip->reg_lock);
@@ -676,6 +678,9 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus,
if (!chip->rirb.cmds[addr]) {
smp_rmb();
bus->rirb_error = 0;
+
+ if (!do_poll)
+ chip->poll_count = 0;
return chip->rirb.res[addr]; /* the last value */
}
if (time_after(jiffies, timeout))
@@ -688,6 +693,16 @@ static unsigned int azx_rirb_get_response(struct hda_bus *bus,
}
}
+ if (!chip->polling_mode && chip->poll_count < 2) {
+ snd_printdd(SFX "azx_get_response timeout, "
+ "polling the codec once: last cmd=0x%08x\n",
+ chip->last_cmd[addr]);
+ do_poll = 1;
+ chip->poll_count++;
+ goto again;
+ }
+
+
if (!chip->polling_mode) {
snd_printk(KERN_WARNING SFX "azx_get_response timeout, "
"switching to polling mode: last cmd=0x%08x\n",