Updated xen patches taken from suse.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.25 / patches.drivers / alsa-post-ga-hda-single-cmd-concurrent-access

diff --git a/src/patches/suse-2.6.27.25/patches.drivers/alsa-post-ga-hda-single-cmd-concurrent-access b/src/patches/suse-2.6.27.25/patches.drivers/alsa-post-ga-hda-single-cmd-concurrent-access
new file mode 100644 (file)
index 0000000..da2ca95
--- /dev/null
+++ b/src/patches/suse-2.6.27.25/patches.drivers/alsa-post-ga-hda-single-cmd-concurrent-access
@@ -0,0 +1,55 @@
+From: Takashi Iwai <tiwai@suse.de>
+Subject: ALSA: hda - Allow concurrent RIRB access in single_cmd mode
+Patch-mainline: 
+References: bnc#502903
+
+In the single_cmd mode, the current driver code doesn't do any update
+for RIRB just for any safety reason.  But, actually the RIRB and
+single_cmd mode don't conflict.  Unsolicited events can be delivered
+even while using the single_cmd mode.
+
+This patch allows the handling of unsolicited events with single_cmd
+mode, just always checking RIRB independent from single_cmd flag.
+
+Signed-off-by: Takashi Iwai <tiwai@suse.de>
+
+---
+ sound/pci/hda/hda_intel.c |   13 +++++--------
+ 1 file changed, 5 insertions(+), 8 deletions(-)
+
+--- a/sound/pci/hda/hda_intel.c
++++ b/sound/pci/hda/hda_intel.c
+@@ -868,8 +868,7 @@ static void azx_init_chip(struct azx *ch
+       azx_int_enable(chip);
+ 
+       /* initialize the codec command I/O */
+-      if (!chip->single_cmd)
+-              azx_init_cmd_io(chip);
++      azx_init_cmd_io(chip);
+ 
+       /* program the position buffer */
+       azx_writel(chip, DPLBASE, (u32)chip->posbuf.addr);
+@@ -989,7 +988,7 @@ static irqreturn_t azx_interrupt(int irq
+       /* clear rirb int */
+       status = azx_readb(chip, RIRBSTS);
+       if (status & RIRB_INT_MASK) {
+-              if (!chip->single_cmd && (status & RIRB_INT_RESPONSE))
++              if (status & RIRB_INT_RESPONSE)
+                       azx_update_rirb(chip);
+               azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
+       }
+@@ -2272,11 +2271,9 @@ static int __devinit azx_create(struct s
+               goto errout;
+       }
+       /* allocate CORB/RIRB */
+-      if (!chip->single_cmd) {
+-              err = azx_alloc_cmd_io(chip);
+-              if (err < 0)
+-                      goto errout;
+-      }
++      err = azx_alloc_cmd_io(chip);
++      if (err < 0)
++              goto errout;
+ 
+       /* initialize streams */
+       azx_init_stream(chip);