ALSA: hda - Avoid conflicts with snd-ctxfi driver

The PCI entries of Creative with HD-audio class can be the devices
with emu20k1/emu20k2 chips.  These are supported better by snd-ctxfi
driver.  With that driver, the device will mutate from HD-audio to
its native class.

This patch adds a simple ifdef to avoid the conflict of device probe
between snd-hda-intel and snd-ctxfi drivers.  1102:0009 seems still
OK to be added as it has no emu20kx chip, and is a pure HD-audio
device.

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 04f19f8..7bb6dd2 100644 (file)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2517,10 +2517,19 @@ static struct pci_device_id azx_ids[] = {
        /* Teradici */
        { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
        /* Creative X-Fi (CA0110-IBG) */
+#if !defined(CONFIG_SND_CTXFI) && !defined(CONFIG_SND_CTXFI_MODULE)
+       /* the following entry conflicts with snd-ctxfi driver,
+        * as ctxfi driver mutates from HD-audio to native mode with
+        * a special command sequence.
+        */
        { PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
          .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
          .class_mask = 0xffffff,
          .driver_data = AZX_DRIVER_GENERIC },
+#else
+       /* this entry seems still valid -- i.e. without emu20kx chip */
+       { PCI_DEVICE(0x1102, 0x0009), .driver_data = AZX_DRIVER_GENERIC },
+#endif
        /* AMD Generic, PCI class code and Vendor ID for HD Audio */
        { PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_ANY_ID),
          .class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,