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| author | Matteo Frigo <athena@fftw.org> | 2012-09-12 10:12:06 -0400 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-09-12 16:17:41 +0200 |
| commit | 3737e2be505d872bf2b3c1cd4151b2d2b413d7b5 (patch) | |
| tree | cee190022e1af2b321c16fda6e67efb9ba1417ed /sound | |
| parent | c302d6133c094bda7a7ce94eac5b50c018a7ca7b (diff) | |
| download | talos-obmc-linux-3737e2be505d872bf2b3c1cd4151b2d2b413d7b5.tar.gz talos-obmc-linux-3737e2be505d872bf2b3c1cd4151b2d2b413d7b5.zip | |
ALSA: ice1724: Use linear scale for AK4396 volume control.
The AK4396 DAC has a linear-scale attentuator, but
sound/pci/ice1712/prodigy_hifi.c used a log scale instead, which is
not quite right. This patch restores the correct scale, borrowing
from the ak4396 code in sound/pci/oxygen/oxygen.c.
Signed-off-by: Matteo Frigo <athena@fftw.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/ice1712/prodigy_hifi.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/pci/ice1712/prodigy_hifi.c b/sound/pci/ice1712/prodigy_hifi.c index 764cc93dbca4..075d5aa1fee0 100644 --- a/sound/pci/ice1712/prodigy_hifi.c +++ b/sound/pci/ice1712/prodigy_hifi.c @@ -297,6 +297,7 @@ static int ak4396_dac_vol_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem } static const DECLARE_TLV_DB_SCALE(db_scale_wm_dac, -12700, 100, 1); +static const DECLARE_TLV_DB_LINEAR(ak4396_db_scale, TLV_DB_GAIN_MUTE, 0); static struct snd_kcontrol_new prodigy_hd2_controls[] __devinitdata = { { @@ -307,7 +308,7 @@ static struct snd_kcontrol_new prodigy_hd2_controls[] __devinitdata = { .info = ak4396_dac_vol_info, .get = ak4396_dac_vol_get, .put = ak4396_dac_vol_put, - .tlv = { .p = db_scale_wm_dac }, + .tlv = { .p = ak4396_db_scale }, }, }; |
