Messages in this thread Patch in this message | | | Date | Thu, 22 Apr 2010 12:54:37 -0700 | From | Greg KH <> | Subject | [100/139] ALSA: hda - enable snoop for Intel Cougar Point |
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2.6.33-stable review patch. If anyone has any objections, please let us know.
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From: Seth Heasley <seth.heasley@intel.com>
commit 32679f95cac3b1bdf27dce8b5273e06af186fd91 upstream.
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> Cc: maximilian attems <max@stro.at> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- sound/pci/hda/hda_intel.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -450,6 +450,7 @@ struct azx { /* driver types */ enum { AZX_DRIVER_ICH, + AZX_DRIVER_PCH, AZX_DRIVER_SCH, AZX_DRIVER_ATI, AZX_DRIVER_ATIHDMI, @@ -464,6 +465,7 @@ 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", @@ -1066,6 +1068,7 @@ static void azx_init_pci(struct azx *chi 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, @@ -2434,6 +2437,7 @@ static int __devinit azx_create(struct s 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: @@ -2713,7 +2717,7 @@ 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 */
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