1 files changed, 165 insertions, 238 deletions

diff --git a/sound/soc/codecs/wm8750.c b/sound/soc/codecs/wm8750.c
index 9407e193fcc..33990b63d21 100644
--- a/sound/soc/codecs/wm8750.c
+++ b/sound/soc/codecs/wm8750.c
@@ -18,14 +18,14 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
-#include <linux/platform_device.h>
+#include <linux/regmap.h>
 #include <linux/spi/spi.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 "wm8750.h"
@@ -35,25 +35,55 @@
  * We can't read the WM8750 register space when we
  * are using 2 wire for device control, so we cache them instead.
  */
-static const u16 wm8750_reg[] = {
-	0x0097, 0x0097, 0x0079, 0x0079,  /*  0 */
-	0x0000, 0x0008, 0x0000, 0x000a,  /*  4 */
-	0x0000, 0x0000, 0x00ff, 0x00ff,  /*  8 */
-	0x000f, 0x000f, 0x0000, 0x0000,  /* 12 */
-	0x0000, 0x007b, 0x0000, 0x0032,  /* 16 */
-	0x0000, 0x00c3, 0x00c3, 0x00c0,  /* 20 */
-	0x0000, 0x0000, 0x0000, 0x0000,  /* 24 */
-	0x0000, 0x0000, 0x0000, 0x0000,  /* 28 */
-	0x0000, 0x0000, 0x0050, 0x0050,  /* 32 */
-	0x0050, 0x0050, 0x0050, 0x0050,  /* 36 */
-	0x0079, 0x0079, 0x0079,          /* 40 */
+static const struct reg_default wm8750_reg_defaults[] = {
+	{  0, 0x0097 },
+	{  1, 0x0097 },
+	{  2, 0x0079 },
+	{  3, 0x0079 },
+	{  4, 0x0000 },
+	{  5, 0x0008 },
+	{  6, 0x0000 },
+	{  7, 0x000a },
+	{  8, 0x0000 },
+	{  9, 0x0000 },
+	{ 10, 0x00ff },
+	{ 11, 0x00ff },
+	{ 12, 0x000f },
+	{ 13, 0x000f },
+	{ 14, 0x0000 },
+	{ 15, 0x0000 },
+	{ 16, 0x0000 },
+	{ 17, 0x007b },
+	{ 18, 0x0000 },
+	{ 19, 0x0032 },
+	{ 20, 0x0000 },
+	{ 21, 0x00c3 },
+	{ 22, 0x00c3 },
+	{ 23, 0x00c0 },
+	{ 24, 0x0000 },
+	{ 25, 0x0000 },
+	{ 26, 0x0000 },
+	{ 27, 0x0000 },
+	{ 28, 0x0000 },
+	{ 29, 0x0000 },
+	{ 30, 0x0000 },
+	{ 31, 0x0000 },
+	{ 32, 0x0000 },
+	{ 33, 0x0000 },
+	{ 34, 0x0050 },
+	{ 35, 0x0050 },
+	{ 36, 0x0050 },
+	{ 37, 0x0050 },
+	{ 38, 0x0050 },
+	{ 39, 0x0050 },
+	{ 40, 0x0079 },
+	{ 41, 0x0079 },
+	{ 42, 0x0079 },
 };
 
 /* codec private data */
 struct wm8750_priv {
 	unsigned int sysclk;
-	struct snd_soc_codec codec;
-	u16 reg_cache[ARRAY_SIZE(wm8750_reg)];
 };
 
 #define wm8750_reset(c)	snd_soc_write(c, WM8750_RESET, 0)
@@ -303,7 +333,7 @@ static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
 	SND_SOC_DAPM_INPUT("RINPUT3"),
 };
 
-static const struct snd_soc_dapm_route audio_map[] = {
+static const struct snd_soc_dapm_route wm8750_dapm_routes[] = {
 	/* left mixer */
 	{"Left Mixer", "Playback Switch", "Left DAC"},
 	{"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
@@ -397,16 +427,6 @@ static const struct snd_soc_dapm_route audio_map[] = {
 	{"Right ADC", NULL, "Right ADC Mux"},
 };
 
-static int wm8750_add_widgets(struct snd_soc_codec *codec)
-{
-	snd_soc_dapm_new_controls(codec, wm8750_dapm_widgets,
-				  ARRAY_SIZE(wm8750_dapm_widgets));
-
-	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
-
-	return 0;
-}
-
 struct _coeff_div {
 	u32 mclk;
 	u32 rate;
@@ -559,9 +579,7 @@ static int wm8750_pcm_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 wm8750_priv *wm8750 = snd_soc_codec_get_drvdata(codec);
 	u16 iface = snd_soc_read(codec, WM8750_IFACE) & 0x1f3;
 	u16 srate = snd_soc_read(codec, WM8750_SRATE) & 0x1c0;
@@ -616,7 +634,9 @@ static int wm8750_set_bias_level(struct snd_soc_codec *codec,
 	case SND_SOC_BIAS_PREPARE:
 		break;
 	case SND_SOC_BIAS_STANDBY:
-		if (codec->bias_level == SND_SOC_BIAS_OFF) {
+		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
+			snd_soc_cache_sync(codec);
+
 			/* Set VMID to 5k */
 			snd_soc_write(codec, WM8750_PWR1, pwr_reg | 0x01c1);
 
@@ -631,7 +651,7 @@ static int wm8750_set_bias_level(struct snd_soc_codec *codec,
 		snd_soc_write(codec, WM8750_PWR1, 0x0001);
 		break;
 	}
-	codec->bias_level = level;
+	codec->dapm.bias_level = level;
 	return 0;
 }
 
@@ -642,15 +662,15 @@ static int wm8750_set_bias_level(struct snd_soc_codec *codec,
 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 	SNDRV_PCM_FMTBIT_S24_LE)
 
-static struct snd_soc_dai_ops wm8750_dai_ops = {
+static const struct snd_soc_dai_ops wm8750_dai_ops = {
 	.hw_params	= wm8750_pcm_hw_params,
 	.digital_mute	= wm8750_mute,
 	.set_fmt	= wm8750_set_dai_fmt,
 	.set_sysclk	= wm8750_set_dai_sysclk,
 };
 
-struct snd_soc_dai wm8750_dai = {
-	.name = "WM8750",
+static struct snd_soc_dai_driver wm8750_dai = {
+	.name = "wm8750-hifi",
 	.playback = {
 		.stream_name = "Playback",
 		.channels_min = 1,
@@ -665,233 +685,173 @@ struct snd_soc_dai wm8750_dai = {
 		.formats = WM8750_FORMATS,},
 	.ops = &wm8750_dai_ops,
 };
-EXPORT_SYMBOL_GPL(wm8750_dai);
 
-static int wm8750_suspend(struct platform_device *pdev, pm_message_t state)
+static int wm8750_suspend(struct snd_soc_codec *codec)
 {
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->card->codec;
-
 	wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
 }
 
-static int wm8750_resume(struct platform_device *pdev)
+static int wm8750_resume(struct snd_soc_codec *codec)
 {
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec = socdev->card->codec;
-	int i;
-	u8 data[2];
-	u16 *cache = codec->reg_cache;
-
-	/* Sync reg_cache with the hardware */
-	for (i = 0; i < ARRAY_SIZE(wm8750_reg); i++) {
-		if (i == WM8750_RESET)
-			continue;
-		data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001);
-		data[1] = cache[i] & 0x00ff;
-		codec->hw_write(codec->control_data, data, 2);
-	}
-
 	wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-
 	return 0;
 }
 
-static struct snd_soc_codec *wm8750_codec;
-
-static int wm8750_probe(struct platform_device *pdev)
+static int wm8750_probe(struct snd_soc_codec *codec)
 {
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec;
-	int ret = 0;
-
-	if (!wm8750_codec) {
-		dev_err(&pdev->dev, "WM8750 codec not yet registered\n");
-		return -EINVAL;
-	}
-
-	socdev->card->codec = wm8750_codec;
-	codec = wm8750_codec;
+	int ret;
 
-	/* register pcms */
-	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+	ret = wm8750_reset(codec);
 	if (ret < 0) {
-		printk(KERN_ERR "wm8750: failed to create pcms\n");
-		goto err;
+		printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
+		return ret;
 	}
 
-	snd_soc_add_controls(codec, wm8750_snd_controls,
-				ARRAY_SIZE(wm8750_snd_controls));
-	wm8750_add_widgets(codec);
+	/* charge output caps */
+	wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	return 0;
+	/* set the update bits */
+	snd_soc_update_bits(codec, WM8750_LDAC, 0x0100, 0x0100);
+	snd_soc_update_bits(codec, WM8750_RDAC, 0x0100, 0x0100);
+	snd_soc_update_bits(codec, WM8750_LOUT1V, 0x0100, 0x0100);
+	snd_soc_update_bits(codec, WM8750_ROUT1V, 0x0100, 0x0100);
+	snd_soc_update_bits(codec, WM8750_LOUT2V, 0x0100, 0x0100);
+	snd_soc_update_bits(codec, WM8750_ROUT2V, 0x0100, 0x0100);
+	snd_soc_update_bits(codec, WM8750_LINVOL, 0x0100, 0x0100);
+	snd_soc_update_bits(codec, WM8750_RINVOL, 0x0100, 0x0100);
 
-err:
 	return ret;
 }
 
-/* power down chip */
-static int wm8750_remove(struct platform_device *pdev)
+static int wm8750_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);
-
+	wm8750_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	return 0;
 }
 
-struct snd_soc_codec_device soc_codec_dev_wm8750 = {
-	.probe		= wm8750_probe,
-	.remove		= wm8750_remove,
-	.suspend	= wm8750_suspend,
-	.resume		= wm8750_resume,
+static struct snd_soc_codec_driver soc_codec_dev_wm8750 = {
+	.probe =	wm8750_probe,
+	.remove =	wm8750_remove,
+	.suspend =	wm8750_suspend,
+	.resume =	wm8750_resume,
+	.set_bias_level = wm8750_set_bias_level,
+
+	.controls = wm8750_snd_controls,
+	.num_controls = ARRAY_SIZE(wm8750_snd_controls),
+	.dapm_widgets = wm8750_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
+	.dapm_routes = wm8750_dapm_routes,
+	.num_dapm_routes = ARRAY_SIZE(wm8750_dapm_routes),
 };
-EXPORT_SYMBOL_GPL(soc_codec_dev_wm8750);
 
-/*
- * initialise the WM8750 driver
- * register the mixer and dsp interfaces with the kernel
- */
-static int wm8750_register(struct wm8750_priv *wm8750,
-			enum snd_soc_control_type control)
-{
-	struct snd_soc_codec *codec = &wm8750->codec;
-	int reg, ret = 0;
-
-	if (wm8750_codec) {
-		dev_err(codec->dev, "Multiple WM8750 devices not supported\n");
-		ret = -EINVAL;
-		goto err;
-	}
-
-	mutex_init(&codec->mutex);
-	INIT_LIST_HEAD(&codec->dapm_widgets);
-	INIT_LIST_HEAD(&codec->dapm_paths);
-
-	codec->name = "WM8750";
-	codec->owner = THIS_MODULE;
-	codec->bias_level = SND_SOC_BIAS_STANDBY;
-	codec->set_bias_level = wm8750_set_bias_level;
-	codec->dai = &wm8750_dai;
-	codec->num_dai = 1;
-	codec->reg_cache_size = ARRAY_SIZE(wm8750->reg_cache) + 1;
-	codec->reg_cache = &wm8750->reg_cache;
-	snd_soc_codec_set_drvdata(codec, wm8750);
-
-	memcpy(codec->reg_cache, wm8750_reg, sizeof(wm8750->reg_cache));
+static const struct of_device_id wm8750_of_match[] = {
+	{ .compatible = "wlf,wm8750", },
+	{ .compatible = "wlf,wm8987", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, wm8750_of_match);
 
-	ret = snd_soc_codec_set_cache_io(codec, 7, 9, control);
-	if (ret < 0) {
-		printk(KERN_ERR "wm8750: failed to set cache I/O: %d\n", ret);
-		goto err;
-	}
+static const struct regmap_config wm8750_regmap = {
+	.reg_bits = 7,
+	.val_bits = 9,
+	.max_register = WM8750_MOUTV,
 
-	ret = wm8750_reset(codec);
-	if (ret < 0) {
-		printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
-		goto err;
-	}
+	.reg_defaults = wm8750_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(wm8750_reg_defaults),
+	.cache_type = REGCACHE_RBTREE,
+};
 
-	/* charge output caps */
-	wm8750_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
+#if defined(CONFIG_SPI_MASTER)
+static int wm8750_spi_probe(struct spi_device *spi)
+{
+	struct wm8750_priv *wm8750;
+	struct regmap *regmap;
+	int ret;
 
-	/* set the update bits */
-	reg = snd_soc_read(codec, WM8750_LDAC);
-	snd_soc_write(codec, WM8750_LDAC, reg | 0x0100);
-	reg = snd_soc_read(codec, WM8750_RDAC);
-	snd_soc_write(codec, WM8750_RDAC, reg | 0x0100);
-	reg = snd_soc_read(codec, WM8750_LOUT1V);
-	snd_soc_write(codec, WM8750_LOUT1V, reg | 0x0100);
-	reg = snd_soc_read(codec, WM8750_ROUT1V);
-	snd_soc_write(codec, WM8750_ROUT1V, reg | 0x0100);
-	reg = snd_soc_read(codec, WM8750_LOUT2V);
-	snd_soc_write(codec, WM8750_LOUT2V, reg | 0x0100);
-	reg = snd_soc_read(codec, WM8750_ROUT2V);
-	snd_soc_write(codec, WM8750_ROUT2V, reg | 0x0100);
-	reg = snd_soc_read(codec, WM8750_LINVOL);
-	snd_soc_write(codec, WM8750_LINVOL, reg | 0x0100);
-	reg = snd_soc_read(codec, WM8750_RINVOL);
-	snd_soc_write(codec, WM8750_RINVOL, reg | 0x0100);
-
-	wm8750_codec = codec;
-
-	ret = snd_soc_register_codec(codec);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to register codec: %d\n", ret);
-		goto err;
-	}
+	wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv),
+			      GFP_KERNEL);
+	if (wm8750 == NULL)
+		return -ENOMEM;
 
-	ret = snd_soc_register_dais(&wm8750_dai, 1);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to register DAIs: %d\n", ret);
-		goto err_codec;
-	}
+	regmap = devm_regmap_init_spi(spi, &wm8750_regmap);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
 
-	return 0;
+	spi_set_drvdata(spi, wm8750);
 
-err_codec:
-	snd_soc_unregister_codec(codec);
-err:
-	kfree(wm8750);
+	ret = snd_soc_register_codec(&spi->dev,
+			&soc_codec_dev_wm8750, &wm8750_dai, 1);
 	return ret;
 }
 
-static void wm8750_unregister(struct wm8750_priv *wm8750)
+static int wm8750_spi_remove(struct spi_device *spi)
 {
-	wm8750_set_bias_level(&wm8750->codec, SND_SOC_BIAS_OFF);
-	snd_soc_unregister_dais(&wm8750_dai, 1);
-	snd_soc_unregister_codec(&wm8750->codec);
-	kfree(wm8750);
-	wm8750_codec = NULL;
+	snd_soc_unregister_codec(&spi->dev);
+	return 0;
 }
 
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static const struct spi_device_id wm8750_spi_ids[] = {
+	{ "wm8750", 0 },
+	{ "wm8987", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(spi, wm8750_spi_ids);
 
-/*
- * WM8750 2 wire address is determined by GPIO5
- * state during powerup.
- *    low  = 0x1a
- *    high = 0x1b
- */
+static struct spi_driver wm8750_spi_driver = {
+	.driver = {
+		.name	= "wm8750",
+		.owner	= THIS_MODULE,
+		.of_match_table = wm8750_of_match,
+	},
+	.id_table	= wm8750_spi_ids,
+	.probe		= wm8750_spi_probe,
+	.remove		= wm8750_spi_remove,
+};
+#endif /* CONFIG_SPI_MASTER */
 
+#if IS_ENABLED(CONFIG_I2C)
 static int wm8750_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
-	struct snd_soc_codec *codec;
 	struct wm8750_priv *wm8750;
+	struct regmap *regmap;
+	int ret;
 
-	wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
+	wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv),
+			      GFP_KERNEL);
 	if (wm8750 == NULL)
 		return -ENOMEM;
 
-	codec = &wm8750->codec;
-	codec->control_data = i2c;
 	i2c_set_clientdata(i2c, wm8750);
 
-	codec->dev = &i2c->dev;
+	regmap = devm_regmap_init_i2c(i2c, &wm8750_regmap);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
 
-	return wm8750_register(wm8750, SND_SOC_I2C);
+	ret =  snd_soc_register_codec(&i2c->dev,
+			&soc_codec_dev_wm8750, &wm8750_dai, 1);
+	return ret;
 }
 
 static int wm8750_i2c_remove(struct i2c_client *client)
 {
-	struct wm8750_priv *wm8750 = i2c_get_clientdata(client);
-	wm8750_unregister(wm8750);
+	snd_soc_unregister_codec(&client->dev);
 	return 0;
 }
 
 static const struct i2c_device_id wm8750_i2c_id[] = {
 	{ "wm8750", 0 },
+	{ "wm8987", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
 
 static struct i2c_driver wm8750_i2c_driver = {
 	.driver = {
-		.name = "WM8750 I2C Codec",
+		.name = "wm8750",
 		.owner = THIS_MODULE,
+		.of_match_table = wm8750_of_match,
 	},
 	.probe =    wm8750_i2c_probe,
 	.remove =   wm8750_i2c_remove,
@@ -899,63 +859,30 @@ static struct i2c_driver wm8750_i2c_driver = {
 };
 #endif
 
-#if defined(CONFIG_SPI_MASTER)
-static int __devinit wm8750_spi_probe(struct spi_device *spi)
-{
-	struct snd_soc_codec *codec;
-	struct wm8750_priv *wm8750;
-
-	wm8750 = kzalloc(sizeof(struct wm8750_priv), GFP_KERNEL);
-	if (wm8750 == NULL)
-		return -ENOMEM;
-
-	codec = &wm8750->codec;
-	codec->control_data = spi;
-	codec->dev = &spi->dev;
-
-	dev_set_drvdata(&spi->dev, wm8750);
-
-	return wm8750_register(wm8750, SND_SOC_SPI);
-}
-
-static int __devexit wm8750_spi_remove(struct spi_device *spi)
-{
-	struct wm8750_priv *wm8750 = dev_get_drvdata(&spi->dev);
-	wm8750_unregister(wm8750);
-	return 0;
-}
-
-static struct spi_driver wm8750_spi_driver = {
-	.driver = {
-		.name	= "wm8750",
-		.bus	= &spi_bus_type,
-		.owner	= THIS_MODULE,
-	},
-	.probe		= wm8750_spi_probe,
-	.remove		= __devexit_p(wm8750_spi_remove),
-};
-#endif
-
 static int __init wm8750_modinit(void)
 {
-	int ret;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	int ret = 0;
+#if IS_ENABLED(CONFIG_I2C)
 	ret = i2c_add_driver(&wm8750_i2c_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM8750 I2C driver: %d\n", ret);
+	if (ret != 0) {
+		printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n",
+		       ret);
+	}
 #endif
 #if defined(CONFIG_SPI_MASTER)
 	ret = spi_register_driver(&wm8750_spi_driver);
-	if (ret != 0)
-		pr_err("Failed to register WM8750 SPI driver: %d\n", ret);
+	if (ret != 0) {
+		printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n",
+		       ret);
+	}
 #endif
-	return 0;
+	return ret;
 }
 module_init(wm8750_modinit);
 
 static void __exit wm8750_exit(void)
 {
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+#if IS_ENABLED(CONFIG_I2C)
 	i2c_del_driver(&wm8750_i2c_driver);
 #endif
 #if defined(CONFIG_SPI_MASTER)