1 files changed, 113 insertions, 215 deletions

diff --git a/sound/soc/codecs/wm8523.c b/sound/soc/codecs/wm8523.c
index 37242a7d307..601ee8178af 100644
--- a/sound/soc/codecs/wm8523.c
+++ b/sound/soc/codecs/wm8523.c
@@ -17,22 +17,19 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
-#include <linux/platform_device.h>
+#include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
+#include <linux/of_device.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
-#include <sound/soc-dapm.h>
 #include <sound/initval.h>
 #include <sound/tlv.h>
 
 #include "wm8523.h"
 
-static struct snd_soc_codec *wm8523_codec;
-struct snd_soc_codec_device soc_codec_dev_wm8523;
-
 #define WM8523_NUM_SUPPLIES 2
 static const char *wm8523_supply_names[WM8523_NUM_SUPPLIES] = {
 	"AVDD",
@@ -43,42 +40,34 @@ static const char *wm8523_supply_names[WM8523_NUM_SUPPLIES] = {
 
 /* codec private data */
 struct wm8523_priv {
-	struct snd_soc_codec codec;
-	u16 reg_cache[WM8523_REGISTER_COUNT];
+	struct regmap *regmap;
 	struct regulator_bulk_data supplies[WM8523_NUM_SUPPLIES];
 	unsigned int sysclk;
 	unsigned int rate_constraint_list[WM8523_NUM_RATES];
 	struct snd_pcm_hw_constraint_list rate_constraint;
 };
 
-static const u16 wm8523_reg[WM8523_REGISTER_COUNT] = {
-	0x8523,     /* R0 - DEVICE_ID */
-	0x0001,     /* R1 - REVISION */
-	0x0000,     /* R2 - PSCTRL1 */
-	0x1812,     /* R3 - AIF_CTRL1 */
-	0x0000,     /* R4 - AIF_CTRL2 */
-	0x0001,     /* R5 - DAC_CTRL3 */
-	0x0190,     /* R6 - DAC_GAINL */
-	0x0190,     /* R7 - DAC_GAINR */
-	0x0000,     /* R8 - ZERO_DETECT */
+static const struct reg_default wm8523_reg_defaults[] = {
+	{ 2, 0x0000 },     /* R2 - PSCTRL1 */
+	{ 3, 0x1812 },     /* R3 - AIF_CTRL1 */
+	{ 4, 0x0000 },     /* R4 - AIF_CTRL2 */
+	{ 5, 0x0001 },     /* R5 - DAC_CTRL3 */
+	{ 6, 0x0190 },     /* R6 - DAC_GAINL */
+	{ 7, 0x0190 },     /* R7 - DAC_GAINR */
+	{ 8, 0x0000 },     /* R8 - ZERO_DETECT */
 };
 
-static int wm8523_volatile_register(unsigned int reg)
+static bool wm8523_volatile_register(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case WM8523_DEVICE_ID:
 	case WM8523_REVISION:
-		return 1;
+		return true;
 	default:
-		return 0;
+		return false;
 	}
 }
 
-static int wm8523_reset(struct snd_soc_codec *codec)
-{
-	return snd_soc_write(codec, WM8523_DEVICE_ID, 0);
-}
-
 static const DECLARE_TLV_DB_SCALE(dac_tlv, -10000, 25, 0);
 
 static const char *wm8523_zd_count_text[] = {
@@ -86,10 +75,10 @@ static const char *wm8523_zd_count_text[] = {
 	"2048",
 };
 
-static const struct soc_enum wm8523_zc_count =
-	SOC_ENUM_SINGLE(WM8523_ZERO_DETECT, 0, 2, wm8523_zd_count_text);
+static SOC_ENUM_SINGLE_DECL(wm8523_zc_count, WM8523_ZERO_DETECT, 0,
+			    wm8523_zd_count_text);
 
-static const struct snd_kcontrol_new wm8523_snd_controls[] = {
+static const struct snd_kcontrol_new wm8523_controls[] = {
 SOC_DOUBLE_R_TLV("Playback Volume", WM8523_DAC_GAINL, WM8523_DAC_GAINR,
 		 0, 448, 0, dac_tlv),
 SOC_SINGLE("ZC Switch", WM8523_DAC_CTRL3, 4, 1, 0),
@@ -106,21 +95,11 @@ SND_SOC_DAPM_OUTPUT("LINEVOUTL"),
 SND_SOC_DAPM_OUTPUT("LINEVOUTR"),
 };
 
-static const struct snd_soc_dapm_route intercon[] = {
+static const struct snd_soc_dapm_route wm8523_dapm_routes[] = {
 	{ "LINEVOUTL", NULL, "DAC" },
 	{ "LINEVOUTR", NULL, "DAC" },
 };
 
-static int wm8523_add_widgets(struct snd_soc_codec *codec)
-{
-	snd_soc_dapm_new_controls(codec, wm8523_dapm_widgets,
-				  ARRAY_SIZE(wm8523_dapm_widgets));
-
-	snd_soc_dapm_add_routes(codec, intercon, ARRAY_SIZE(intercon));
-
-	return 0;
-}
-
 static struct {
 	int value;
 	int ratio;
@@ -149,7 +128,6 @@ static int wm8523_startup(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	return 0;
 	snd_pcm_hw_constraint_list(substream->runtime, 0,
 				   SNDRV_PCM_HW_PARAM_RATE,
 				   &wm8523->rate_constraint);
@@ -161,9 +139,7 @@ static int wm8523_hw_params(struct snd_pcm_substream *substream,
 			    struct snd_pcm_hw_params *params,
 			    struct snd_soc_dai *dai)
 {
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->card->codec;
+	struct snd_soc_codec *codec = dai->codec;
 	struct wm8523_priv *wm8523 = snd_soc_codec_get_drvdata(codec);
 	int i;
 	u16 aifctrl1 = snd_soc_read(codec, WM8523_AIF_CTRL1);
@@ -319,7 +295,7 @@ static int wm8523_set_bias_level(struct snd_soc_codec *codec,
 				 enum snd_soc_bias_level level)
 {
 	struct wm8523_priv *wm8523 = snd_soc_codec_get_drvdata(codec);
-	int ret, i;
+	int ret;
 
 	switch (level) {
 	case SND_SOC_BIAS_ON:
@@ -332,7 +308,7 @@ static int wm8523_set_bias_level(struct snd_soc_codec *codec,
 		break;
 
 	case SND_SOC_BIAS_STANDBY:
-		if (codec->bias_level == SND_SOC_BIAS_OFF) {
+		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
 			ret = regulator_bulk_enable(ARRAY_SIZE(wm8523->supplies),
 						    wm8523->supplies);
 			if (ret != 0) {
@@ -342,16 +318,13 @@ static int wm8523_set_bias_level(struct snd_soc_codec *codec,
 				return ret;
 			}
 
+			/* Sync back default/cached values */
+			regcache_sync(wm8523->regmap);
+
 			/* Initial power up */
 			snd_soc_update_bits(codec, WM8523_PSCTRL1,
 					    WM8523_SYS_ENA_MASK, 1);
 
-			/* Sync back default/cached values */
-			for (i = WM8523_AIF_CTRL1;
-			     i < WM8523_MAX_REGISTER; i++)
-				snd_soc_write(codec, i, wm8523->reg_cache[i]);
-
-
 			msleep(100);
 		}
 
@@ -371,7 +344,7 @@ static int wm8523_set_bias_level(struct snd_soc_codec *codec,
 				       wm8523->supplies);
 		break;
 	}
-	codec->bias_level = level;
+	codec->dapm.bias_level = level;
 	return 0;
 }
 
@@ -380,15 +353,15 @@ static int wm8523_set_bias_level(struct snd_soc_codec *codec,
 #define WM8523_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 
-static struct snd_soc_dai_ops wm8523_dai_ops = {
+static const struct snd_soc_dai_ops wm8523_dai_ops = {
 	.startup	= wm8523_startup,
 	.hw_params	= wm8523_hw_params,
 	.set_sysclk	= wm8523_set_dai_sysclk,
 	.set_fmt	= wm8523_set_dai_fmt,
 };
 
-struct snd_soc_dai wm8523_dai = {
-	.name = "WM8523",
+static struct snd_soc_dai_driver wm8523_dai = {
+	.name = "wm8523-hifi",
 	.playback = {
 		.stream_name = "Playback",
 		.channels_min = 2,  /* Mono modes not yet supported */
@@ -398,25 +371,17 @@ struct snd_soc_dai wm8523_dai = {
 	},
 	.ops = &wm8523_dai_ops,
 };
-EXPORT_SYMBOL_GPL(wm8523_dai);
 
 #ifdef CONFIG_PM
-static int wm8523_suspend(struct platform_device *pdev, pm_message_t state)
+static int wm8523_suspend(struct snd_soc_codec *codec)
 {
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->card->codec;
-
 	wm8523_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
 }
 
-static int wm8523_resume(struct platform_device *pdev)
+static int wm8523_resume(struct snd_soc_codec *codec)
 {
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->card->codec;
-
 	wm8523_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
 	return 0;
 }
 #else
@@ -424,209 +389,141 @@ static int wm8523_resume(struct platform_device *pdev)
 #define wm8523_resume NULL
 #endif
 
-static int wm8523_probe(struct platform_device *pdev)
+static int wm8523_probe(struct snd_soc_codec *codec)
 {
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec;
-	int ret = 0;
-
-	if (wm8523_codec == NULL) {
-		dev_err(&pdev->dev, "Codec device not registered\n");
-		return -ENODEV;
-	}
-
-	socdev->card->codec = wm8523_codec;
-	codec = wm8523_codec;
+	struct wm8523_priv *wm8523 = snd_soc_codec_get_drvdata(codec);
 
-	/* register pcms */
-	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
-	if (ret < 0) {
-		dev_err(codec->dev, "failed to create pcms: %d\n", ret);
-		goto pcm_err;
-	}
+	wm8523->rate_constraint.list = &wm8523->rate_constraint_list[0];
+	wm8523->rate_constraint.count =
+		ARRAY_SIZE(wm8523->rate_constraint_list);
 
-	snd_soc_add_controls(codec, wm8523_snd_controls,
-			     ARRAY_SIZE(wm8523_snd_controls));
-	wm8523_add_widgets(codec);
+	/* Change some default settings - latch VU and enable ZC */
+	snd_soc_update_bits(codec, WM8523_DAC_GAINR,
+			    WM8523_DACR_VU, WM8523_DACR_VU);
+	snd_soc_update_bits(codec, WM8523_DAC_CTRL3, WM8523_ZC, WM8523_ZC);
 
-	return ret;
+	wm8523_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-pcm_err:
-	return ret;
+	return 0;
 }
 
-static int wm8523_remove(struct platform_device *pdev)
+static int wm8523_remove(struct snd_soc_codec *codec)
 {
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
-	snd_soc_free_pcms(socdev);
-	snd_soc_dapm_free(socdev);
-
+	wm8523_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
 }
 
-struct snd_soc_codec_device soc_codec_dev_wm8523 = {
-	.probe = 	wm8523_probe,
-	.remove = 	wm8523_remove,
-	.suspend = 	wm8523_suspend,
+static struct snd_soc_codec_driver soc_codec_dev_wm8523 = {
+	.probe =	wm8523_probe,
+	.remove =	wm8523_remove,
+	.suspend =	wm8523_suspend,
 	.resume =	wm8523_resume,
+	.set_bias_level = wm8523_set_bias_level,
+
+	.controls = wm8523_controls,
+	.num_controls = ARRAY_SIZE(wm8523_controls),
+	.dapm_widgets = wm8523_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(wm8523_dapm_widgets),
+	.dapm_routes = wm8523_dapm_routes,
+	.num_dapm_routes = ARRAY_SIZE(wm8523_dapm_routes),
 };
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8523);
 
-static int wm8523_register(struct wm8523_priv *wm8523,
-			   enum snd_soc_control_type control)
-{
-	int ret;
-	struct snd_soc_codec *codec = &wm8523->codec;
-	int i;
+static const struct of_device_id wm8523_of_match[] = {
+	{ .compatible = "wlf,wm8523" },
+	{ },
+};
 
-	if (wm8523_codec) {
-		dev_err(codec->dev, "Another WM8523 is registered\n");
-		return -EINVAL;
-	}
+static const struct regmap_config wm8523_regmap = {
+	.reg_bits = 8,
+	.val_bits = 16,
+	.max_register = WM8523_ZERO_DETECT,
 
-	mutex_init(&codec->mutex);
-	INIT_LIST_HEAD(&codec->dapm_widgets);
-	INIT_LIST_HEAD(&codec->dapm_paths);
-
-	snd_soc_codec_set_drvdata(codec, wm8523);
-	codec->name = "WM8523";
-	codec->owner = THIS_MODULE;
-	codec->bias_level = SND_SOC_BIAS_OFF;
-	codec->set_bias_level = wm8523_set_bias_level;
-	codec->dai = &wm8523_dai;
-	codec->num_dai = 1;
-	codec->reg_cache_size = WM8523_REGISTER_COUNT;
-	codec->reg_cache = &wm8523->reg_cache;
-	codec->volatile_register = wm8523_volatile_register;
+	.reg_defaults = wm8523_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm8523_reg_defaults),
+	.cache_type = REGCACHE_RBTREE,
 
-	wm8523->rate_constraint.list = &wm8523->rate_constraint_list[0];
-	wm8523->rate_constraint.count =
-		ARRAY_SIZE(wm8523->rate_constraint_list);
+	.volatile_reg = wm8523_volatile_register,
+};
+
+#if IS_ENABLED(CONFIG_I2C)
+static int wm8523_i2c_probe(struct i2c_client *i2c,
+			    const struct i2c_device_id *id)
+{
+	struct wm8523_priv *wm8523;
+	unsigned int val;
+	int ret, i;
 
-	memcpy(codec->reg_cache, wm8523_reg, sizeof(wm8523_reg));
+	wm8523 = devm_kzalloc(&i2c->dev, sizeof(struct wm8523_priv),
+			      GFP_KERNEL);
+	if (wm8523 == NULL)
+		return -ENOMEM;
 
-	ret = snd_soc_codec_set_cache_io(codec, 8, 16, control);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
-		goto err;
+	wm8523->regmap = devm_regmap_init_i2c(i2c, &wm8523_regmap);
+	if (IS_ERR(wm8523->regmap)) {
+		ret = PTR_ERR(wm8523->regmap);
+		dev_err(&i2c->dev, "Failed to create regmap: %d\n", ret);
+		return ret;
 	}
 
 	for (i = 0; i < ARRAY_SIZE(wm8523->supplies); i++)
 		wm8523->supplies[i].supply = wm8523_supply_names[i];
 
-	ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8523->supplies),
-				 wm8523->supplies);
+	ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8523->supplies),
+				      wm8523->supplies);
 	if (ret != 0) {
-		dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
-		goto err;
+		dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
+		return ret;
 	}
 
 	ret = regulator_bulk_enable(ARRAY_SIZE(wm8523->supplies),
 				    wm8523->supplies);
 	if (ret != 0) {
-		dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
-		goto err_get;
+		dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
+		return ret;
 	}
 
-	ret = snd_soc_read(codec, WM8523_DEVICE_ID);
+	ret = regmap_read(wm8523->regmap, WM8523_DEVICE_ID, &val);
 	if (ret < 0) {
-		dev_err(codec->dev, "Failed to read ID register\n");
+		dev_err(&i2c->dev, "Failed to read ID register\n");
 		goto err_enable;
 	}
-	if (ret != wm8523_reg[WM8523_DEVICE_ID]) {
-		dev_err(codec->dev, "Device is not a WM8523, ID is %x\n", ret);
+	if (val != 0x8523) {
+		dev_err(&i2c->dev, "Device is not a WM8523, ID is %x\n", ret);
 		ret = -EINVAL;
 		goto err_enable;
 	}
 
-	ret = snd_soc_read(codec, WM8523_REVISION);
+	ret = regmap_read(wm8523->regmap, WM8523_REVISION, &val);
 	if (ret < 0) {
-		dev_err(codec->dev, "Failed to read revision register\n");
+		dev_err(&i2c->dev, "Failed to read revision register\n");
 		goto err_enable;
 	}
-	dev_info(codec->dev, "revision %c\n",
-		 (ret & WM8523_CHIP_REV_MASK) + 'A');
+	dev_info(&i2c->dev, "revision %c\n",
+		 (val & WM8523_CHIP_REV_MASK) + 'A');
 
-	ret = wm8523_reset(codec);
-	if (ret < 0) {
-		dev_err(codec->dev, "Failed to issue reset\n");
+	ret = regmap_write(wm8523->regmap, WM8523_DEVICE_ID, 0x8523);
+	if (ret != 0) {
+		dev_err(&i2c->dev, "Failed to reset device: %d\n", ret);
 		goto err_enable;
 	}
 
-	wm8523_dai.dev = codec->dev;
-
-	/* Change some default settings - latch VU and enable ZC */
-	wm8523->reg_cache[WM8523_DAC_GAINR] |= WM8523_DACR_VU;
-	wm8523->reg_cache[WM8523_DAC_CTRL3] |= WM8523_ZC;
-
-	wm8523_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
-	/* Bias level configuration will have done an extra enable */
 	regulator_bulk_disable(ARRAY_SIZE(wm8523->supplies), wm8523->supplies);
 
-	wm8523_codec = codec;
-
-	ret = snd_soc_register_codec(codec);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to register codec: %d\n", ret);
-		return ret;
-	}
+	i2c_set_clientdata(i2c, wm8523);
 
-	ret = snd_soc_register_dai(&wm8523_dai);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
-		snd_soc_unregister_codec(codec);
-		return ret;
-	}
+	ret =  snd_soc_register_codec(&i2c->dev,
+			&soc_codec_dev_wm8523, &wm8523_dai, 1);
 
-	return 0;
+	return ret;
 
 err_enable:
 	regulator_bulk_disable(ARRAY_SIZE(wm8523->supplies), wm8523->supplies);
-err_get:
-	regulator_bulk_free(ARRAY_SIZE(wm8523->supplies), wm8523->supplies);
-err:
-	kfree(wm8523);
 	return ret;
 }
 
-static void wm8523_unregister(struct wm8523_priv *wm8523)
-{
-	wm8523_set_bias_level(&wm8523->codec, SND_SOC_BIAS_OFF);
-	regulator_bulk_free(ARRAY_SIZE(wm8523->supplies), wm8523->supplies);
-	snd_soc_unregister_dai(&wm8523_dai);
-	snd_soc_unregister_codec(&wm8523->codec);
-	kfree(wm8523);
-	wm8523_codec = NULL;
-}
-
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static __devinit int wm8523_i2c_probe(struct i2c_client *i2c,
-				      const struct i2c_device_id *id)
-{
-	struct wm8523_priv *wm8523;
-	struct snd_soc_codec *codec;
-
-	wm8523 = kzalloc(sizeof(struct wm8523_priv), GFP_KERNEL);
-	if (wm8523 == NULL)
-		return -ENOMEM;
-
-	codec = &wm8523->codec;
-	codec->hw_write = (hw_write_t)i2c_master_send;
-
-	i2c_set_clientdata(i2c, wm8523);
-	codec->control_data = i2c;
-
-	codec->dev = &i2c->dev;
-
-	return wm8523_register(wm8523, SND_SOC_I2C);
-}
-
-static __devexit int wm8523_i2c_remove(struct i2c_client *client)
+static int wm8523_i2c_remove(struct i2c_client *client)
 {
-	struct wm8523_priv *wm8523 = i2c_get_clientdata(client);
-	wm8523_unregister(wm8523);
+	snd_soc_unregister_codec(&client->dev);
 	return 0;
 }
 
@@ -638,11 +535,12 @@ MODULE_DEVICE_TABLE(i2c, wm8523_i2c_id);
 
 static struct i2c_driver wm8523_i2c_driver = {
 	.driver = {
-		.name = "WM8523",
+		.name = "wm8523",
 		.owner = THIS_MODULE,
+		.of_match_table = wm8523_of_match,
 	},
 	.probe =    wm8523_i2c_probe,
-	.remove =   __devexit_p(wm8523_i2c_remove),
+	.remove =   wm8523_i2c_remove,
 	.id_table = wm8523_i2c_id,
 };
 #endif
@@ -650,7 +548,7 @@ static struct i2c_driver wm8523_i2c_driver = {
 static int __init wm8523_modinit(void)
 {
 	int ret;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
 	ret = i2c_add_driver(&wm8523_i2c_driver);
 	if (ret != 0) {
 		printk(KERN_ERR "Failed to register WM8523 I2C driver: %d\n",
@@ -663,7 +561,7 @@ module_init(wm8523_modinit);
 
 static void __exit wm8523_exit(void)
 {
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
 	i2c_del_driver(&wm8523_i2c_driver);
 #endif
 }