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    Subject[143/197] ALSA: hda - enable snoop for Intel Cougar Point
    2.6.32-stable review patch.  If anyone has any objections, please let us know.

    ------------------

    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
    @@ -438,6 +438,7 @@ struct azx {
    /* driver types */
    enum {
    AZX_DRIVER_ICH,
    + AZX_DRIVER_PCH,
    AZX_DRIVER_SCH,
    AZX_DRIVER_ATI,
    AZX_DRIVER_ATIHDMI,
    @@ -452,6 +453,7 @@ 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",
    @@ -1040,6 +1042,7 @@ 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,
    @@ -2393,6 +2396,7 @@ 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:
    @@ -2668,7 +2672,7 @@ 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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