ALSA: ASoC: TLV320AIC3X: Add mixer control for ADC highpass filter

Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

2 files changed, 8 insertions, 0 deletions

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 4f0bf26f170b..d13830623db1 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -223,6 +223,8 @@ static const char *aic3x_right_hpcom_mux[] =
     { "differential of HPROUT", "constant VCM", "single-ended",
       "differential of HPLCOM", "external feedback" };
 static const char *aic3x_linein_mode_mux[] = { "single-ended", "differential" };
+static const char *aic3x_adc_hpf[] =
+    { "Disabled", "0.0045xFs", "0.0125xFs", "0.025xFs" };
 
 #define LDAC_ENUM       0
 #define RDAC_ENUM       1
@@ -232,6 +234,7 @@ static const char *aic3x_linein_mode_mux[] = { "single-ended", "differential" };
 #define LINE1R_ENUM     5
 #define LINE2L_ENUM     6
 #define LINE2R_ENUM     7
+#define ADC_HPF_ENUM    8
 
 static const struct soc_enum aic3x_enum[] = {
         SOC_ENUM_SINGLE(DAC_LINE_MUX, 6, 3, aic3x_left_dac_mux),
@@ -242,6 +245,7 @@ static const struct soc_enum aic3x_enum[] = {
         SOC_ENUM_SINGLE(LINE1R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux),
         SOC_ENUM_SINGLE(LINE2L_2_LADC_CTRL, 7, 2, aic3x_linein_mode_mux),
         SOC_ENUM_SINGLE(LINE2R_2_RADC_CTRL, 7, 2, aic3x_linein_mode_mux),
+        SOC_ENUM_DOUBLE(AIC3X_CODEC_DFILT_CTRL, 6, 4, 4, aic3x_adc_hpf),
 };
 
 static const struct snd_kcontrol_new aic3x_snd_controls[] = {
@@ -292,6 +296,8 @@ static const struct snd_kcontrol_new aic3x_snd_controls[] = {
         /* Input */
         SOC_DOUBLE_R("PGA Capture Volume", LADC_VOL, RADC_VOL, 0, 0x7f, 0),
         SOC_DOUBLE_R("PGA Capture Switch", LADC_VOL, RADC_VOL, 7, 0x01, 1),
+
+        SOC_ENUM("ADC HPF Cut-off", aic3x_enum[ADC_HPF_ENUM]),
 };
 
 /* add non dapm controls */
diff --git a/sound/soc/codecs/tlv320aic3x.h b/sound/soc/codecs/tlv320aic3x.h
index c1dd1ac0ceac..e6009461063f 100644
--- a/sound/soc/codecs/tlv320aic3x.h
+++ b/sound/soc/codecs/tlv320aic3x.h
@@ -37,6 +37,8 @@
 #define AIC3X_ASD_INTF_CTRLB            9
 /* Audio overflow status and PLL R value programming register */
 #define AIC3X_OVRF_STATUS_AND_PLLR_REG  11
+/* Audio codec digital filter control register */
+#define AIC3X_CODEC_DFILT_CTRL          12
 
 /* ADC PGA Gain control registers */
 #define LADC_VOL                        15