From: Clemens Ladisch Date: Sat, 14 Jan 2012 15:42:24 +0000 (+0100) Subject: ALSA: virtuoso: Xonar DS: fix polarity of front output X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f0e48b6bd4e407459715240cd241ddb6b89bdf81;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git ALSA: virtuoso: Xonar DS: fix polarity of front output The two DACs for the front output and the surround/center/LFE/back outputs are wired up out of phase, so when channels are duplicated, their sound can cancel out each other and result in a weaker bass response. To fix this, reverse the polarity of the neutron flow to the front output. Reported-any-tested-by: Daniel Hill Signed-off-by: Clemens Ladisch Cc: 2.6.34+ Signed-off-by: Takashi Iwai --- diff --git a/sound/pci/oxygen/xonar_wm87x6.c b/sound/pci/oxygen/xonar_wm87x6.c index 478303e6c2b0..63cff90706bf 100644 --- a/sound/pci/oxygen/xonar_wm87x6.c +++ b/sound/pci/oxygen/xonar_wm87x6.c @@ -177,6 +177,7 @@ static void wm8776_registers_init(struct oxygen *chip) struct xonar_wm87x6 *data = chip->model_data; wm8776_write(chip, WM8776_RESET, 0); + wm8776_write(chip, WM8776_PHASESWAP, WM8776_PH_MASK); wm8776_write(chip, WM8776_DACCTRL1, WM8776_DZCEN | WM8776_PL_LEFT_LEFT | WM8776_PL_RIGHT_RIGHT); wm8776_write(chip, WM8776_DACMUTE, chip->dac_mute ? WM8776_DMUTE : 0);