From bc29e262c3062682c6099bd455ae8544916f723e Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Mon, 10 Jan 2011 16:11:32 +0100 Subject: [PATCH] ALSA: virtuoso: use headphone gain setting only on front DAC Do not apply the headphone gain offset to any but the front DAC. These DACs would not be used in headphone mode, so this saves a few register writes. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/pci/oxygen/xonar_pcm179x.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/oxygen/xonar_pcm179x.c b/sound/pci/oxygen/xonar_pcm179x.c index 2d0a634a7239..e15ecee2ccf7 100644 --- a/sound/pci/oxygen/xonar_pcm179x.c +++ b/sound/pci/oxygen/xonar_pcm179x.c @@ -319,6 +319,7 @@ static void pcm1796_registers_init(struct oxygen *chip) pcm1796_write(chip, i, 20, data->pcm1796_regs[0][20 - PCM1796_REG_BASE]); pcm1796_write(chip, i, 21, 0); + gain_offset = 0; } } @@ -615,6 +616,7 @@ static void update_pcm1796_volume(struct oxygen *chip) + gain_offset); pcm1796_write_cached(chip, i, 17, chip->dac_volume[i * 2 + 1] + gain_offset); + gain_offset = 0; } }