ALSA: hda - support detecting HD Audio devices with PCI class code

The patch uses HD Audio PCI class code to detect AMD HD Audio cards.

Signed-off-by: Libin Yang <libin.yang@amd.com>
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 3e112df1c0dc79fa05e8df0287773bbbd0ea781c..f73c13fdd40903d2e2707f64a5baa520c6f5b262 100644 (file)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -292,6 +292,8 @@ enum {
 /* Define VIA HD Audio Device ID*/
 #define VIA_HDAC_DEVICE_ID             0x3288
 
+/* HD Audio class code */
+#define PCI_CLASS_MULTIMEDIA_HD_AUDIO  0x0403
 
 /*
  */
@@ -415,6 +417,7 @@ enum {
        AZX_DRIVER_ULI,
        AZX_DRIVER_NVIDIA,
        AZX_DRIVER_TERA,
+       AZX_DRIVER_GENERIC,
        AZX_NUM_DRIVERS, /* keep this as last entry */
 };
 
@@ -428,6 +431,7 @@ static char *driver_short_names[] __devinitdata = {
        [AZX_DRIVER_ULI] = "HDA ULI M5461",
        [AZX_DRIVER_NVIDIA] = "HDA NVidia",
        [AZX_DRIVER_TERA] = "HDA Teradici", 
+       [AZX_DRIVER_GENERIC] = "HD-Audio Generic",
 };
 
 /*
@@ -2203,6 +2207,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
                        chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
                        chip->capture_streams = ATIHDMI_NUM_CAPTURE;
                        break;
+               case AZX_DRIVER_GENERIC:
                default:
                        chip->playback_streams = ICH6_NUM_PLAYBACK;
                        chip->capture_streams = ICH6_NUM_CAPTURE;
@@ -2427,6 +2432,11 @@ static struct pci_device_id azx_ids[] = {
        { PCI_DEVICE(0x10de, 0x0bd7), .driver_data = AZX_DRIVER_NVIDIA },
        /* Teradici */
        { PCI_DEVICE(0x6549, 0x1200), .driver_data = AZX_DRIVER_TERA },
+       /* 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,
+         .class_mask = 0xffffff,
+         .driver_data = AZX_DRIVER_GENERIC },
        { 0, }
 };
 MODULE_DEVICE_TABLE(pci, azx_ids);