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>

diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index b568692..3ba4c0f 100644 (file)
--- 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[];