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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>
This commit is contained in:
Sascha Hauer 2014-05-14 09:37:36 +02:00 committed by Mark Brown
parent d815c703ce
commit 5cd15e29a4
1 changed files with 20 additions and 0 deletions
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20
sound/soc/codecs/ak4642.c
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@ -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[];