Add Zhaoxin SB HDAC non snoop path support.

Signed-off-by: LeoLiu-oc LeoLiu-oc@zhaoxin.com ---  sound/pci/hda/hda_intel.c | 13 +++++++++++--  1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 4c8b281c3992..8ff7902ec6e6 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -240,8 +240,8 @@ MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"               "{ATI, RV770},"               "{VIA, VT8251},"               "{VIA, VT8237A}," -             "{SiS, SIS966}," -             "{ULI, M5461}}"); +             "{ULI, M5461}," +             "{ZX, ZhaoxinHDA}}");  MODULE_DESCRIPTION("Intel HDA driver");

#if defined(CONFIG_PM) && defined(CONFIG_VGA_SWITCHEROO) @@ -1744,6 +1744,15 @@ static void azx_check_snoop_available(struct azx *chip)              snoop = false;      }

+    if (azx_get_snoop_type(chip) == AZX_SNOOP_TYPE_NONE && +        chip->driver_type == AZX_DRIVER_ZHAOXIN) { +        u8 val1; + +        pci_read_config_byte(chip->pci, 0x42, &val1); +        if (!(val1 & 0x80) && chip->pci->revision == 0x20) +            snoop = false; +    } +      if (chip->driver_caps & AZX_DCAPS_SNOOP_OFF)          snoop = false;