linux-kernel - [PATCH 2/2] ASoC: tfa9879: Add bass and treble gain/freq controls.

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Date:	Thu,  6 Nov 2014 13:54:01 +0100
From:	Peter Rosin <peda@...ator.liu.se>
To:	alsa-devel@...a-project.org
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org,
	Peter Rosin <peda@...ntia.se>
Subject: [PATCH 2/2] ASoC: tfa9879: Add bass and treble gain/freq controls.

From: Peter Rosin <peda@...ntia.se>

Signed-off-by: Peter Rosin <peda@...ntia.se>
---
 sound/soc/codecs/tfa9879.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sound/soc/codecs/tfa9879.c b/sound/soc/codecs/tfa9879.c
index 90cc28f7e6ed..0d62962542e2 100644
--- a/sound/soc/codecs/tfa9879.c
+++ b/sound/soc/codecs/tfa9879.c
@@ -213,10 +213,26 @@ static bool tfa9879_volatile_register(struct device *dev, unsigned int reg)
 }
 
 static const DECLARE_TLV_DB_SCALE(volume_tlv, -7050, 50, 1);
+static const DECLARE_TLV_DB_SCALE(tb_gain_tlv, -1800, 200, 0);
+static const char * const tb_freq_text[] = {
+	"Low", "Mid", "High"
+};
+static const struct soc_enum treble_freq_enum =
+	SOC_ENUM_SINGLE(TFA9879_BASS_TREBLE, TFA9879_F_TRBLE_SHIFT,
+			ARRAY_SIZE(tb_freq_text), tb_freq_text);
+static const struct soc_enum bass_freq_enum =
+	SOC_ENUM_SINGLE(TFA9879_BASS_TREBLE, TFA9879_F_BASS_SHIFT,
+			ARRAY_SIZE(tb_freq_text), tb_freq_text);
 
 static const struct snd_kcontrol_new tfa9879_controls[] = {
 	SOC_SINGLE_TLV("PCM Playback Volume", TFA9879_VOLUME_CONTROL,
 		       TFA9879_VOL_SHIFT, 0xbd, 1, volume_tlv),
+	SOC_SINGLE_TLV("Treble Gain Volume", TFA9879_BASS_TREBLE,
+		       TFA9879_G_TRBLE_SHIFT, 18, 0, tb_gain_tlv),
+	SOC_SINGLE_TLV("Bass Gain Volume", TFA9879_BASS_TREBLE,
+		       TFA9879_G_BASS_SHIFT, 18, 0, tb_gain_tlv),
+	SOC_ENUM("Treble Corner Freq", treble_freq_enum),
+	SOC_ENUM("Bass Corner Freq", bass_freq_enum),
 };
 
 static const struct snd_soc_dapm_widget tfa9879_dapm_widgets[] = {
-- 
1.7.10.4

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