Merge branch 'fix/hda' into for-linus

1 files changed, 18 insertions, 3 deletions

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 565de38a3fc..b8faa6dc5ab 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",
@@ -2043,7 +2058,7 @@ static int azx_acquire_irq(struct azx *chip, int do_disconnect)
 {
         if (request_irq(chip->pci->irq, azx_interrupt,
                         chip->msi ? 0 : IRQF_SHARED,
-                        "HDA Intel", chip)) {
+                        "hda_intel", chip)) {
                 printk(KERN_ERR "hda-intel: unable to grab IRQ %d, "
                        "disabling device\n", chip->pci->irq);
                 if (do_disconnect)