ALSA: hda: Fix position reporting on Poulsbo

Hans reported that his Sony VAIO VPX11S1E showed the broken sound
behavior at the start of the stream for a couple of seconds, and it
turned out that the position_fix=1 option fixes the issue.  It implies
that the position reporting is inaccurate, and very likely hitting on
all Poulsbo devices.

The patch applies the workaround for Poulsbo generically to switch to
LPIB mode instead of the default position buffer.

Reported-and-tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/3e8697e1-87c6-7a7b-d2e8-b21f1d2f181b@redhat.com
Link: https://lore.kernel.org/r/20221001142124.7241-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 2a93bc64c2d883fd42cbf8fac510f949a695a23b..6ff19dd0d10c261703ad21f9d612403f5f48de59 100644 (file)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2547,7 +2547,8 @@ static const struct pci_device_id azx_ids[] = {
          .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
        /* Poulsbo */
        { PCI_DEVICE(0x8086, 0x811b),
-         .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },
+         .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE |
+         AZX_DCAPS_POSFIX_LPIB },
        /* Oaktrail */
        { PCI_DEVICE(0x8086, 0x080a),
          .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_BASE },