• Takashi Iwai's avatar
    ALSA: hda - Drop bind-volume workaround · c2c80383
    Takashi Iwai authored
    The bind-volume workaround was introduced for simplifying the mixer
    abstraction in the case where one or more pins of multiple outputs
    lack of individual volume controls.  This was essentially the case
    like Acer Aspire 5935, which has 5.1 speakers and 5.1 (multi-io)
    jacks although there are 5 DACs, so some of them must share a DAC.
    However, the recent code rewrite changed the DAC assignment policy to
    share with the same channel instead of binding to the front, thus
    binding the volumes for all channels makes little sense now, rather
    it's confusing.  So in this patch, the ugly workaround is finally
    dropped and simply create the volume control corresponding to the
    parsed path position.
    For dual headphones or 2.1 speakers with a shared volume control, it's
    anyway bound to the same DAC if needed, so this change shouldn't bring
    any practical difference.
    And, as a good bonus, we can cut off the whole code handling the bind
    volume elements.
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>