Merge remote-tracking branches 'asoc/topic/max98090' and 'asoc/topic/max98095' into...

[karo-tx-linux.git] / sound / soc / codecs / max98095.c

diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 03f0536e6f6185cf72178fad877484a4eb1dc679..89ec00424880fb31d2ee2c878164d9e1b755b319 100644 (file)
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -15,6 +15,7 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
+#include <linux/clk.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -42,6 +43,7 @@ struct max98095_priv {
        struct regmap *regmap;
        enum max98095_type devtype;
        struct max98095_pdata *pdata;
+       struct clk *mclk;
        unsigned int sysclk;
        struct max98095_cdata dai[3];
        const char **eq_texts;
@@ -612,7 +614,7 @@ static SOC_ENUM_SINGLE_DECL(max98095_dai3_dac_filter_enum,
 static int max98095_mic1pre_set(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
        unsigned int sel = ucontrol->value.integer.value[0];
 
@@ -626,7 +628,7 @@ static int max98095_mic1pre_set(struct snd_kcontrol *kcontrol,
 static int max98095_mic1pre_get(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
 
        ucontrol->value.integer.value[0] = max98095->mic1pre;
@@ -636,7 +638,7 @@ static int max98095_mic1pre_get(struct snd_kcontrol *kcontrol,
 static int max98095_mic2pre_set(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
        unsigned int sel = ucontrol->value.integer.value[0];
 
@@ -650,7 +652,7 @@ static int max98095_mic2pre_set(struct snd_kcontrol *kcontrol,
 static int max98095_mic2pre_get(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
 
        ucontrol->value.integer.value[0] = max98095->mic2pre;
@@ -1395,6 +1397,11 @@ static int max98095_dai_set_sysclk(struct snd_soc_dai *dai,
        if (freq == max98095->sysclk)
                return 0;
 
+       if (!IS_ERR(max98095->mclk)) {
+               freq = clk_round_rate(max98095->mclk, freq);
+               clk_set_rate(max98095->mclk, freq);
+       }
+
        /* Setup clocks for slave mode, and using the PLL
         * PSCLK = 0x01 (when master clk is 10MHz to 20MHz)
         *         0x02 (when master clk is 20MHz to 40MHz)..
@@ -1634,6 +1641,19 @@ static int max98095_set_bias_level(struct snd_soc_codec *codec,
                break;
 
        case SND_SOC_BIAS_PREPARE:
+               /*
+                * SND_SOC_BIAS_PREPARE is called while preparing for a
+                * transition to ON or away from ON. If current bias_level
+                * is SND_SOC_BIAS_ON, then it is preparing for a transition
+                * away from ON. Disable the clock in that case, otherwise
+                * enable it.
+                */
+               if (!IS_ERR(max98095->mclk)) {
+                       if (codec->dapm.bias_level == SND_SOC_BIAS_ON)
+                               clk_disable_unprepare(max98095->mclk);
+                       else
+                               clk_prepare_enable(max98095->mclk);
+               }
                break;
 
        case SND_SOC_BIAS_STANDBY:
@@ -1737,7 +1757,7 @@ static int max98095_get_eq_channel(const char *name)
 static int max98095_put_eq_enum(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
        struct max98095_pdata *pdata = max98095->pdata;
        int channel = max98095_get_eq_channel(kcontrol->id.name);
@@ -1801,7 +1821,7 @@ static int max98095_put_eq_enum(struct snd_kcontrol *kcontrol,
 static int max98095_get_eq_enum(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
        int channel = max98095_get_eq_channel(kcontrol->id.name);
        struct max98095_cdata *cdata;
@@ -1891,7 +1911,7 @@ static int max98095_get_bq_channel(struct snd_soc_codec *codec,
 static int max98095_put_bq_enum(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
        struct max98095_pdata *pdata = max98095->pdata;
        int channel = max98095_get_bq_channel(codec, kcontrol->id.name);
@@ -1952,7 +1972,7 @@ static int max98095_put_bq_enum(struct snd_kcontrol *kcontrol,
 static int max98095_get_bq_enum(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
 {
-       struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+       struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
        int channel = max98095_get_bq_channel(codec, kcontrol->id.name);
        struct max98095_cdata *cdata;
@@ -2238,6 +2258,10 @@ static int max98095_probe(struct snd_soc_codec *codec)
        struct i2c_client *client;
        int ret = 0;
 
+       max98095->mclk = devm_clk_get(codec->dev, "mclk");
+       if (PTR_ERR(max98095->mclk) == -EPROBE_DEFER)
+               return -EPROBE_DEFER;
+
        /* reset the codec, the DSP core, and disable all interrupts */
        max98095_reset(codec);
 
@@ -2399,10 +2423,17 @@ static const struct i2c_device_id max98095_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max98095_i2c_id);
 
+static const struct of_device_id max98095_of_match[] = {
+       { .compatible = "maxim,max98095", },
+       { }
+};
+MODULE_DEVICE_TABLE(of, max98095_of_match);
+
 static struct i2c_driver max98095_i2c_driver = {
        .driver = {
                .name = "max98095",
                .owner = THIS_MODULE,
+               .of_match_table = of_match_ptr(max98095_of_match),
        },
        .probe  = max98095_i2c_probe,
        .remove = max98095_i2c_remove,