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| author | Takashi Iwai <tiwai@suse.de> | 2011-04-26 15:25:02 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-04-26 15:33:43 +0200 |
| commit | d507cd668a3f6d07b31e914722b453c454b03204 (patch) | |
| tree | 9fd9abef757ac53c5223c4565825b3f5b13982ce /sound/pci/hda/hda_intel.c | |
| parent | 0da2692256ed65bec588f7797c77f9c84ef4274e (diff) | |
| download | op-kernel-dev-d507cd668a3f6d07b31e914722b453c454b03204.zip op-kernel-dev-d507cd668a3f6d07b31e914722b453c454b03204.tar.gz | |
ALSA: hda - Enable sync_write workaround for AMD generically
The workaround for AMD chipset via sync_write flag seems needed for
machines with Realtek codecs. So, it's better to activate it
generically in hda_intel.c from the beginning.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 6f891ee8..f95ff6e 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1447,6 +1447,17 @@ static int __devinit azx_codec_create(struct azx *chip, const char *model) } } + /* AMD chipsets often cause the communication stalls upon certain + * sequence like the pin-detection. It seems that forcing the synced + * access works around the stall. Grrr... + */ + if (chip->pci->vendor == PCI_VENDOR_ID_AMD || + chip->pci->vendor == PCI_VENDOR_ID_ATI) { + snd_printk(KERN_INFO SFX "Enable sync_write for AMD chipset\n"); + chip->bus->sync_write = 1; + chip->bus->allow_bus_reset = 1; + } + /* Then create codec instances */ for (c = 0; c < max_slots; c++) { if ((chip->codec_mask & (1 << c)) & chip->codec_probe_mask) { |
