lkml.org 
[lkml]   [2011]   [Jun]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[097/165] ALSA: hda - Use LPIB for ATI/AMD chipsets as default
    2.6.39-stable review patch.  If anyone has any objections, please let us know.

    ------------------
    Content-Length: 1188
    Lines: 37

    From: Takashi Iwai <tiwai@suse.de>

    commit 50e3bbf9898840eead86f90a43b3625a2b2f4112 upstream.

    ATI and AMD chipsets seem not providing the proper position-buffer
    information, and it also doesn't provide FIFO register required by
    VIACOMBO fix. It's better to use LPIB for these.

    Reported-by: David Henningsson <david.henningsson@canonical.com>
    Signed-off-by: Takashi Iwai <tiwai@suse.de>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

    ---
    sound/pci/hda/hda_intel.c | 9 ++++++++-
    1 file changed, 8 insertions(+), 1 deletion(-)

    --- a/sound/pci/hda/hda_intel.c
    +++ b/sound/pci/hda/hda_intel.c
    @@ -2349,9 +2349,16 @@ static int __devinit check_position_fix(
    /* Check VIA/ATI HD Audio Controller exist */
    switch (chip->driver_type) {
    case AZX_DRIVER_VIA:
    - case AZX_DRIVER_ATI:
    /* Use link position directly, avoid any transfer problem. */
    return POS_FIX_VIACOMBO;
    + case AZX_DRIVER_ATI:
    + /* ATI chipsets don't work well with position-buffer */
    + return POS_FIX_LPIB;
    + case AZX_DRIVER_GENERIC:
    + /* AMD chipsets also don't work with position-buffer */
    + if (chip->pci->vendor == PCI_VENDOR_ID_AMD)
    + return POS_FIX_LPIB;
    + break;
    }

    return POS_FIX_AUTO;



    \
     
     \ /
      Last update: 2011-06-01 10:27    [W:0.032 / U:187.872 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site