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authorCharles Keepax <ckeepax@opensource.wolfsonmicro.com>2014-06-06 14:14:05 +0100
committerMark Brown <broonie@linaro.org>2014-06-09 21:19:50 +0100
commitcc9e92431ee9c7fe974266e0e6533a1a68e45539 (patch)
tree531abd966bb661d7c097f8074ec9f469fe5ed3c9 /sound/soc/codecs/arizona.c
parented70f3a264e9f746eaf17c96ccc4c9b7eda742dc (diff)
ASoC: wm5102: Add controls to allow shaping of ultrasonic response
Add controls to allow custom shaping of the ultrasonic response. This custom shaping can be turned on/off at runtime, although, it should be noted that settings will not affect a currently open audio stream, they will be applied when the next audio stream is started. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/arizona.c')
-rw-r--r--sound/soc/codecs/arizona.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index e77f61c387f..41b56ee6ff5 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1127,6 +1127,31 @@ static int arizona_startup(struct snd_pcm_substream *substream,
constraint);
}
+static void arizona_wm5102_set_dac_comp(struct snd_soc_codec *codec,
+ unsigned int rate)
+{
+ struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec);
+ struct arizona *arizona = priv->arizona;
+ struct reg_default dac_comp[] = {
+ { 0x80, 0x3 },
+ { ARIZONA_DAC_COMP_1, 0 },
+ { ARIZONA_DAC_COMP_2, 0 },
+ { 0x80, 0x0 },
+ };
+
+ mutex_lock(&codec->mutex);
+
+ dac_comp[1].def = arizona->dac_comp_coeff;
+ if (rate >= 176400)
+ dac_comp[2].def = arizona->dac_comp_enabled;
+
+ mutex_unlock(&codec->mutex);
+
+ regmap_multi_reg_write(arizona->regmap,
+ dac_comp,
+ ARRAY_SIZE(dac_comp));
+}
+
static int arizona_hw_params_rate(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -1153,6 +1178,15 @@ static int arizona_hw_params_rate(struct snd_pcm_substream *substream,
switch (dai_priv->clk) {
case ARIZONA_CLK_SYSCLK:
+ switch (priv->arizona->type) {
+ case WM5102:
+ arizona_wm5102_set_dac_comp(codec,
+ params_rate(params));
+ break;
+ default:
+ break;
+ }
+
snd_soc_update_bits(codec, ARIZONA_SAMPLE_RATE_1,
ARIZONA_SAMPLE_RATE_1_MASK, sr_val);
if (base)