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ALSA: virtuoso: use headphone gain setting only on front DAC

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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 <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch 2011-01-10 16:11:32 +01:00 committed by Takashi Iwai
parent c97e2dc484
commit bc29e262c3
1 changed files with 2 additions and 0 deletions
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2
sound/pci/oxygen/xonar_pcm179x.c
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@ -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;
}
}