[3.19.y-ckt stable] Patch "ASoC: tas2552: Correct the Speaker Driver Playback Volume (PGA_GAIN)" has been added to staging queue

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    ASoC: tas2552: Correct the Speaker Driver Playback Volume (PGA_GAIN)

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt10.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

------

>From ee5e803791d05d2280e04eeac2815ba5383223b7 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi at ti.com>
Date: Thu, 4 Jun 2015 16:04:27 +0300
Subject: [PATCH 027/120] ASoC: tas2552: Correct the Speaker Driver Playback
 Volume (PGA_GAIN)

commit dd6ae3bcfe0fa9cf1bdb6f952c617f2070c57b37 upstream.

The last parameter for DECLARE_TLV_DB_SCALE() is to tell if the gain will
be muted or not when it is set to raw 0. IN this case it is not muted.
The PGA_GAIN is in 0-4 bits in the register. Fix the offset in the
SOC_SINGLE_TLV() for this.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi at ti.com>
Signed-off-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 sound/soc/codecs/tas2552.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c
index 8f9d1e6..6c76015 100644
--- a/sound/soc/codecs/tas2552.c
+++ b/sound/soc/codecs/tas2552.c
@@ -333,11 +333,11 @@ static struct snd_soc_dai_driver tas2552_dai[] = {
 /*
  * DAC digital volumes. From -7 to 24 dB in 1 dB steps
  */
-static DECLARE_TLV_DB_SCALE(dac_tlv, -7, 100, 24);
+static DECLARE_TLV_DB_SCALE(dac_tlv, -7, 100, 0);

 static const struct snd_kcontrol_new tas2552_snd_controls[] = {
 	SOC_SINGLE_TLV("Speaker Driver Playback Volume",
-			 TAS2552_PGA_GAIN, 0, 0x1f, 1, dac_tlv),
+			 TAS2552_PGA_GAIN, 0, 0x1f, 0, dac_tlv),
 };

 static const struct reg_default tas2552_init_regs[] = {
--
1.9.1