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Subject[PATCH v2] ASoC: wm8960: Add DAC filter characteristics selection
Date
Support DAC filter characteristics selection: Normal mode
and Sloping stopband. Sloping stopband may have
better frequency response.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---
changes in v2:
- modify capitalise

sound/soc/codecs/wm8960.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index 366f5d769d6d..5db9b0338396 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -155,6 +155,7 @@ static const char *wm8960_adc_data_output_sel[] = {
"Left Data = Right ADC; Right Data = Left ADC",
};
static const char *wm8960_dmonomix[] = {"Stereo", "Mono"};
+static const char *wm8960_dacslope[] = {"Normal", "Sloping"};

static const struct soc_enum wm8960_enum[] = {
SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
@@ -165,6 +166,7 @@ static const struct soc_enum wm8960_enum[] = {
SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel),
SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix),
+ SOC_ENUM_SINGLE(WM8960_DACCTL2, 1, 2, wm8960_dacslope),
};

static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
@@ -307,6 +309,7 @@ SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",

SOC_ENUM("ADC Data Output Select", wm8960_enum[6]),
SOC_ENUM("DAC Mono Mix", wm8960_enum[7]),
+SOC_ENUM("DAC Filter Characteristics", wm8960_enum[8]),
};

static const struct snd_kcontrol_new wm8960_lin_boost[] = {
--
2.34.1
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