This is a note to let you know that I've just added the patch titled
ALSA: ice1724: Use linear scale for AK4396 volume control.
to the 3.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
alsa-ice1724-use-linear-scale-for-ak4396-volume-control.patch
and it can be found in the queue-3.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 3737e2be505d872bf2b3c1cd4151b2d2b413d7b5 Mon Sep 17 00:00:00 2001
From: Matteo Frigo <[email protected]>
Date: Wed, 12 Sep 2012 10:12:06 -0400
Subject: ALSA: ice1724: Use linear scale for AK4396 volume control.
From: Matteo Frigo <[email protected]>
commit 3737e2be505d872bf2b3c1cd4151b2d2b413d7b5 upstream.
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 <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/pci/ice1712/prodigy_hifi.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- 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
}
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_h
.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 },
},
};
Patches currently in stable-queue which might be from [email protected] are
queue-3.5/alsa-ice1724-use-linear-scale-for-ak4396-volume-control.patch
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