From 154b26aa9ec4aaeaa7258fe85a036613f3713a59 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Thu, 9 Dec 2010 12:07:44 +0000 Subject: [PATCH] ASoC: Implement WM8994/58 DAC and ADC oversampling control The oversampling rate of the DAC and ADC can be controlled to optimise for either low power consumption or maximum performance. Signed-off-by: Mark Brown Acked-by: Liam Girdwood --- sound/soc/codecs/wm8994.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index da48802340f..e59691a7b34 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -558,6 +558,16 @@ static const struct soc_enum aif2dacl_src = static const struct soc_enum aif2dacr_src = SOC_ENUM_SINGLE(WM8994_AIF2_CONTROL_2, 14, 2, aif_chan_src_text); +static const char *osr_text[] = { + "Low Power", "High Performance", +}; + +static const struct soc_enum dac_osr = + SOC_ENUM_SINGLE(WM8994_OVERSAMPLING, 0, 2, osr_text); + +static const struct soc_enum adc_osr = + SOC_ENUM_SINGLE(WM8994_OVERSAMPLING, 1, 2, osr_text); + static void wm8958_mbc_apply(struct snd_soc_codec *codec, int mbc, int start) { struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); @@ -834,6 +844,9 @@ SOC_DOUBLE("AIF1ADC2 HPF Switch", WM8994_AIF1_ADC2_FILTERS, 12, 11, 1, 0), SOC_ENUM("AIF2ADC HPF Mode", aif2adc_hpf), SOC_DOUBLE("AIF2ADC HPF Switch", WM8994_AIF2_ADC_FILTERS, 12, 11, 1, 0), +SOC_ENUM("ADC OSR", adc_osr), +SOC_ENUM("DAC OSR", dac_osr), + SOC_DOUBLE_R_TLV("DAC1 Volume", WM8994_DAC1_LEFT_VOLUME, WM8994_DAC1_RIGHT_VOLUME, 1, 96, 0, digital_tlv), SOC_DOUBLE_R("DAC1 Switch", WM8994_DAC1_LEFT_VOLUME, -- 2.20.1