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authorSascha Hauer <s.hauer@pengutronix.de>2014-05-14 11:37:36 +0400
committerMark Brown <broonie@linaro.org>2014-05-14 15:32:04 +0400
commit5cd15e29a45a18b9a744af61a7d90f26f730eb97 (patch)
treeda6b02f5006d3e509f48d9e8b892ad30f9e99633 /sound/soc/codecs/ak4642.c
parentd815c703cedbc783ae09ac65eef5c4aa18e06128 (diff)
downloadlinux-5cd15e29a45a18b9a744af61a7d90f26f730eb97.tar.xz
ASoC: ak4642: Add support for extended sysclk frequencies of the ak4648
Additionally to the ak4642 pll frequencies the ak4648 also supports 13MHz, 19.2MHz and 26MHz. This adds support for these frequencies. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/codecs/ak4642.c')
-rw-r--r--sound/soc/codecs/ak4642.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index b568692a256b..3ba4c0f11418 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -136,6 +136,7 @@
struct ak4642_drvdata {
const struct regmap_config *regmap_config;
+ int extended_frequencies;
};
struct ak4642_priv {
@@ -297,7 +298,9 @@ static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai,
int clk_id, unsigned int freq, int dir)
{
struct snd_soc_codec *codec = codec_dai->codec;
+ struct ak4642_priv *priv = snd_soc_codec_get_drvdata(codec);
u8 pll;
+ int extended_freq = 0;
switch (freq) {
case 11289600:
@@ -318,9 +321,25 @@ static int ak4642_dai_set_sysclk(struct snd_soc_dai *codec_dai,
case 27000000:
pll = PLL3 | PLL2 | PLL0;
break;
+ case 19200000:
+ pll = PLL3;
+ extended_freq = 1;
+ break;
+ case 13000000:
+ pll = PLL3 | PLL2 | PLL1;
+ extended_freq = 1;
+ break;
+ case 26000000:
+ pll = PLL3 | PLL2 | PLL1 | PLL0;
+ extended_freq = 1;
+ break;
default:
return -EINVAL;
}
+
+ if (extended_freq && !priv->drvdata->extended_frequencies)
+ return -EINVAL;
+
snd_soc_update_bits(codec, MD_CTL1, PLL_MASK, pll);
return 0;
@@ -525,6 +544,7 @@ static const struct ak4642_drvdata ak4643_drvdata = {
static const struct ak4642_drvdata ak4648_drvdata = {
.regmap_config = &ak4648_regmap,
+ .extended_frequencies = 1,
};
static struct of_device_id ak4642_of_match[];