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| author | Takashi Iwai <tiwai@suse.de> | 2006-02-16 17:17:58 (GMT) |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-03-22 09:29:53 (GMT) |
| commit | 111d3af5f5fbf0e28570f1c01e83444d73c68a25 (patch) | |
| tree | 4679b8c2336c475016cd19c81263df0347741684 /sound/pci/hda/hda_codec.c | |
| parent | 353b9e667042d6faa15a41df022bf38c949a7b2f (diff) | |
| download | linux-fsl-qoriq-111d3af5f5fbf0e28570f1c01e83444d73c68a25.tar.xz | |
[ALSA] hda-intel - Automatic correction to single_cmd mode
Modules: HDA Codec driver,HDA Intel driver
Switch to single_cmd mode automatically as a fallback when CORB/RIRB
communication doesn't work well. It may make the driver working on
some devices with broken BIOS/ACPI support.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 208a334..0d1566a 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -531,6 +531,12 @@ int snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr, bus->caddr_tbl[codec_addr] = codec; codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_VENDOR_ID); + if (codec->vendor_id == -1) + /* read again, hopefully the access method was corrected + * in the last read... + */ + codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT, + AC_PAR_VENDOR_ID); codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_SUBSYSTEM_ID); codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT, AC_PAR_REV_ID); |