ALSA: hda - Limit codec-verb retry to limited hardwares

[safe/jmp/linux-2.6] / sound / pci / hda / patch_sigmatel.c

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 48f4a36..42f944b 100644 (file)
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -5375,6 +5375,15 @@ again:
        if (get_wcaps(codec, 0xa) & AC_WCAP_IN_AMP)
                snd_hda_sequence_write_cache(codec, unmute_init);
 
+       /* Some HP machines seem to have unstable codec communications
+        * especially with ATI fglrx driver.  For recovering from the
+        * CORB/RIRB stall, allow the BUS reset and keep always sync
+        */
+       if (spec->board_config == STAC_HP_DV5) {
+               codec->bus->sync_write = 1;
+               codec->bus->allow_bus_reset = 1;
+       }
+
        spec->aloopback_ctl = stac92hd71bxx_loopback;
        spec->aloopback_mask = 0x50;
        spec->aloopback_shift = 0;