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authorTakashi Iwai <tiwai@suse.de>2013-07-29 16:54:36 +0200
committerTakashi Iwai <tiwai@suse.de>2013-07-29 16:54:36 +0200
commitda96fb5b0185d27faab0746f872d22b0cee7b026 (patch)
tree17b9487ff08146e9fba2339e1465dffe65ec5e42 /lib/bitrev.c
parenteefb8be4a4fb4aa9005fc092a88d66fe7cf1adc2 (diff)
ALSA: hda - Fix invalid multi-io creation on VAIO-Z laptops
VAIO-Z laptops need to use the specific DAC for the speaker output by some unknown reason although the codec itself supports the flexible connection. So we implemented a workaround by a new flag, no_primary_hp, for assigning the speaker pin first. This worked until 3.8 kernel, but it got broken because the driver learned for a better multi-io pin mapping, and not it can assign two mic pins for multi-io. Since the multi-io requires to be the primary output, the hp and two mic pins are assigned in prior to the speaker in the end. Although the machine has two mic pins, one of them is used as a noise- canceling headphone, thus it's no real retaskable mic jack. Thus, at best, we can disable the multi-io assignment and make the parser behavior back to the state before the multi-io. This patch adds again a new flag, no_multi_io, to indicate that the device has no multi-io capability, and set it in the fixup for VAIO-Z. The no_multi_io flag itself can be used generically, added via a helper line, too. Reported-by: Tormen <my.nl.abos@gmail.com> Reported-by: Adam Williamson <awilliam@redhat.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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