[PATCH v2 0/5] As the sama5d3xek and at91sam9n12ek have switch to CCF,

@@ -18,10 +18,6 @@
 #include "../codecs/wm8904.h"
 #include "atmel_ssc_dai.h"
 
-#define MCLK_RATE 32768
-
-static struct clk *mclk;
-
 static const struct snd_soc_dapm_widget atmel_asoc_wm8904_dapm_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 	SND_SOC_DAPM_MIC("Mic", NULL),

@@ -61,26 +57,6 @@ static struct snd_soc_ops atmel_asoc_wm8904_ops = {
 	.hw_params = atmel_asoc_wm8904_hw_params,
 };
 
-static int atmel_set_bias_level(struct snd_soc_card *card,
-		struct snd_soc_dapm_context *dapm,
-		enum snd_soc_bias_level level)
-{
-	if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
-		switch (level) {
-		case SND_SOC_BIAS_PREPARE:
-			clk_prepare_enable(mclk);
-			break;
-		case SND_SOC_BIAS_OFF:
-			clk_disable_unprepare(mclk);
-			break;
-		default:
-			break;
-		}
-	}
-
-	return 0;
-};
-
 static struct snd_soc_dai_link atmel_asoc_wm8904_dailink = {
 	.name = "WM8904",
 	.stream_name = "WM8904 PCM",

@@ -94,7 +70,6 @@ static struct snd_soc_dai_link atmel_asoc_wm8904_dailink = {
 static struct snd_soc_card atmel_asoc_wm8904_card = {
 	.name = "atmel_asoc_wm8904",
 	.owner = THIS_MODULE,
-	.set_bias_level = atmel_set_bias_level,
 	.dai_link = &atmel_asoc_wm8904_dailink,
 	.num_links = 1,
 	.dapm_widgets = atmel_asoc_wm8904_dapm_widgets,

@@ -153,7 +128,6 @@ static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
 {
 	struct snd_soc_card *card = &atmel_asoc_wm8904_card;
 	struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
-	struct clk *clk_src;
 	int id, ret;
 
 	card->dev = &pdev->dev;

@@ -170,30 +144,6 @@ static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	mclk = clk_get(NULL, "pck0");
-	if (IS_ERR(mclk)) {
-		dev_err(&pdev->dev, "failed to get pck0\n");
-		ret = PTR_ERR(mclk);
-		goto err_set_audio;
-	}
-
-	clk_src = clk_get(NULL, "clk32k");
-	if (IS_ERR(clk_src)) {
-		dev_err(&pdev->dev, "failed to get clk32k\n");
-		ret = PTR_ERR(clk_src);
-		goto err_set_audio;
-	}
-
-	ret = clk_set_parent(mclk, clk_src);
-	clk_put(clk_src);
-	if (ret != 0) {
-		dev_err(&pdev->dev, "failed to set MCLK parent\n");
-		goto err_set_audio;
-	}
-
-	dev_info(&pdev->dev, "setting pck0 to %dHz\n", MCLK_RATE);
-	clk_set_rate(mclk, MCLK_RATE);
-
 	ret = snd_soc_register_card(card);
 	if (ret) {
 		dev_err(&pdev->dev, "snd_soc_register_card failed\n");

@@ -11,6 +11,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/init.h>

@@ -49,6 +50,7 @@ static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = {
 /* codec private data */
 struct wm8904_priv {
 	struct regmap *regmap;
+	struct clk *mclk;
 
 	enum wm8904_type devtype;
 

@@ -1828,6 +1830,7 @@ static int wm8904_set_bias_level(struct snd_soc_codec *codec,
 
 	switch (level) {
 	case SND_SOC_BIAS_ON:
+		clk_prepare_enable(wm8904->mclk);
 		break;
 
 	case SND_SOC_BIAS_PREPARE:

@@ -1894,6 +1897,7 @@ static int wm8904_set_bias_level(struct snd_soc_codec *codec,
 
 		regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies),
 				       wm8904->supplies);
+		clk_disable_unprepare(wm8904->mclk);
 		break;
 	}
 	codec->dapm.bias_level = level;

@@ -2110,6 +2114,13 @@ static int wm8904_i2c_probe(struct i2c_client *i2c,
 	if (wm8904 == NULL)
 		return -ENOMEM;
 
+	wm8904->mclk = devm_clk_get(&i2c->dev, "mclk");
+	if (IS_ERR(wm8904->mclk)) {
+		ret = PTR_ERR(wm8904->mclk);
+		dev_err(&i2c->dev, "Failed to get MCLK\n");
+		return ret;
+	}
+
 	wm8904->regmap = devm_regmap_init_i2c(i2c, &wm8904_regmap);
 	if (IS_ERR(wm8904->regmap)) {
 		ret = PTR_ERR(wm8904->regmap);

@@ -0,0 +1,33 @@
+WM8904 audio CODEC
+
+This device supports I2C only.
+
+Required properties:
+  - compatible: "wlf,wm8904"
+  - reg: the I2C address of the device.
+  - clock-names: "mclk"
+  - clocks: reference to
+    <Documentation/devicetree/bindings/clock/clock-bindings.txt>
+
+Pins on the device (for linking into audio routes):
+
+  * IN1L
+  * IN1R
+  * IN2L
+  * IN2R
+  * IN3L
+  * IN3R
+  * HPOUTL
+  * HPOUTR
+  * LINEOUTL
+  * LINEOUTR
+  * MICBIAS
+
+Examples:
+
+codec: wm8904 at 1a {
+	compatible = "wlf,wm8904";
+	reg = <0x1a>;
+	clocks = <&pck0>;
+	clock-names = "mclk";
+};

@@ -45,6 +45,8 @@
 				wm8904: wm8904 at 1a {
 					compatible = "wm8904";
 					reg = <0x1a>;
+					clocks = <&pck0>;
+					clock-names = "mclk";
 				};
 			};
 

@@ -56,6 +56,8 @@
 				wm8904: codec at 1a {
 					compatible = "wm8904";
 					reg = <0x1a>;
+					clocks = <&pck0>;
+					clock-names = "mclk";
 				};
 
 				qt1070: keyboard at 1b {