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| author | Takashi Iwai <tiwai@suse.de> | 2009-06-02 01:20:22 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-06-02 01:21:30 +0200 |
| commit | b20f3b834673be9ead83a3c6f07fa3881d1a990f (patch) | |
| tree | 719597407012fca08c66ef5f4565193765a042ed /sound/pci/hda/patch_sigmatel.c | |
| parent | 8dd783304e6d0f7c2830365d63f75f08aa343e10 (diff) | |
| download | lwn-b20f3b834673be9ead83a3c6f07fa3881d1a990f.tar.gz lwn-b20f3b834673be9ead83a3c6f07fa3881d1a990f.zip | |
ALSA: hda - Limit codec-verb retry to limited hardwares
The reset of a BUS controller during operations is somehow risky and
shouldn't be done inevitably for devices that have apparently no such
codec-communication problems.
This patch adds the check of the hardware and limits the bus-reset
capability.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_sigmatel.c')
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 48f4a36c4813..42f944bb641d 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -5375,6 +5375,15 @@ again: if (get_wcaps(codec, 0xa) & AC_WCAP_IN_AMP) snd_hda_sequence_write_cache(codec, unmute_init); + /* Some HP machines seem to have unstable codec communications + * especially with ATI fglrx driver. For recovering from the + * CORB/RIRB stall, allow the BUS reset and keep always sync + */ + if (spec->board_config == STAC_HP_DV5) { + codec->bus->sync_write = 1; + codec->bus->allow_bus_reset = 1; + } + spec->aloopback_ctl = stac92hd71bxx_loopback; spec->aloopback_mask = 0x50; spec->aloopback_shift = 0; |