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authorSeth Heasley <seth.heasley@intel.com>2010-02-22 17:31:09 -0800
committerTakashi Iwai <tiwai@suse.de>2010-02-23 08:15:37 +0100
commit32679f95cac3b1bdf27dce8b5273e06af186fd91 (patch)
treeb2d06c8ce9c2be38f4f1783a1c10f7430400693c /sound
parentd01aecdf900574cf6be7c1c6114e708801126baf (diff)
downloadlinux-32679f95cac3b1bdf27dce8b5273e06af186fd91.tar.bz2
ALSA: hda - enable snoop for Intel Cougar Point
This patch enables snoop, eliminating static during playback. This patch supersedes the previous Cougar Point audio patch. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_intel.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 22dcdc201ede..1adac8cc9592 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -448,6 +448,7 @@ struct azx {
/* driver types */
enum {
AZX_DRIVER_ICH,
+ AZX_DRIVER_PCH,
AZX_DRIVER_SCH,
AZX_DRIVER_ATI,
AZX_DRIVER_ATIHDMI,
@@ -462,6 +463,7 @@ enum {
static char *driver_short_names[] __devinitdata = {
[AZX_DRIVER_ICH] = "HDA Intel",
+ [AZX_DRIVER_PCH] = "HDA Intel PCH",
[AZX_DRIVER_SCH] = "HDA Intel MID",
[AZX_DRIVER_ATI] = "HDA ATI SB",
[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
@@ -1064,6 +1066,7 @@ static void azx_init_pci(struct azx *chip)
0x01, NVIDIA_HDA_ENABLE_COHBIT);
break;
case AZX_DRIVER_SCH:
+ case AZX_DRIVER_PCH:
pci_read_config_word(chip->pci, INTEL_SCH_HDA_DEVC, &snoop);
if (snoop & INTEL_SCH_HDA_DEVC_NOSNOOP) {
pci_write_config_word(chip->pci, INTEL_SCH_HDA_DEVC,
@@ -2421,6 +2424,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
if (bdl_pos_adj[dev] < 0) {
switch (chip->driver_type) {
case AZX_DRIVER_ICH:
+ case AZX_DRIVER_PCH:
bdl_pos_adj[dev] = 1;
break;
default:
@@ -2700,7 +2704,7 @@ static struct pci_device_id azx_ids[] = {
/* PCH */
{ PCI_DEVICE(0x8086, 0x3b56), .driver_data = AZX_DRIVER_ICH },
/* CPT */
- { PCI_DEVICE(0x8086, 0x1c20), .driver_data = AZX_DRIVER_ICH },
+ { PCI_DEVICE(0x8086, 0x1c20), .driver_data = AZX_DRIVER_PCH },
/* SCH */
{ PCI_DEVICE(0x8086, 0x811b), .driver_data = AZX_DRIVER_SCH },
/* ATI SB 450/600 */