ALSA: fix hda AZX_DCAPS_NO_TCSEL quirk check in driver_caps
Commit 9477c58e3308 ("ALSA: hda - Reorganize controller quriks with bit
flags") changed the driver type compares into various quirk bits.
However, the check for AZX_DCAPS_NO_TCSEL got reverted: instead of
clearing TCSEL for chipsets that have that standard capability, it
cleared then when the NO_TCSEL bit was set.
This can lead to noise and repeated sounds - a weird "echo" behavior.
As the comment just above says: "Ensuring these bits are 0 clears
playback static on some HD Audio codecs". Which is definitely true at
least on my Core i5 Westmere system.
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 3487056..486f6de 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1085,7 +1085,7 @@
* codecs.
* The PCI register TCSEL is defined in the Intel manuals.
*/
- if (chip->driver_caps & AZX_DCAPS_NO_TCSEL) {
+ if (!(chip->driver_caps & AZX_DCAPS_NO_TCSEL)) {
snd_printdd(SFX "Clearing TCSEL\n");
update_pci_byte(chip->pci, ICH6_PCIREG_TCSEL, 0x07, 0);
}