ASoC: Convert WM8753 to register via normal device probe

The base support for the only in-tree user, the GTA01, is out of tree
and will be updated separately.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 4b426888f98d58a7ef2c7fc86b7d744c32a581f3..bc29558149e9e9e8e90e3ec55d16b06df9941d86 100644 (file)
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -63,12 +63,6 @@ MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
 static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
        unsigned int mode);
 
-/* codec private data */
-struct wm8753_priv {
-       unsigned int sysclk;
-       unsigned int pcmclk;
-};
-
 /*
  * wm8753 register cache
  * We can't read the WM8753 register space when we
@@ -93,6 +87,14 @@ static const u16 wm8753_reg[] = {
        0x0000, 0x0000
 };
 
+/* codec private data */
+struct wm8753_priv {
+       unsigned int sysclk;
+       unsigned int pcmclk;
+       struct snd_soc_codec codec;
+       u16 reg_cache[ARRAY_SIZE(wm8753_reg)];
+};
+
 /*
  * read wm8753 register cache
  */
@@ -1542,36 +1544,24 @@ static int wm8753_resume(struct platform_device *pdev)
        return 0;
 }
 
-/*
- * initialise the WM8753 driver
- * register the mixer and dsp interfaces with the kernel
- */
-static int wm8753_init(struct snd_soc_device *socdev)
+static struct snd_soc_codec *wm8753_codec;
+
+static int wm8753_probe(struct platform_device *pdev)
 {
-       struct snd_soc_codec *codec = socdev->card->codec;
-       int reg, ret = 0;
+       struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+       struct snd_soc_codec *codec;
+       int ret = 0;
 
-       codec->name = "WM8753";
-       codec->owner = THIS_MODULE;
-       codec->read = wm8753_read_reg_cache;
-       codec->write = wm8753_write;
-       codec->set_bias_level = wm8753_set_bias_level;
-       codec->dai = wm8753_dai;
-       codec->num_dai = 2;
-       codec->reg_cache_size = ARRAY_SIZE(wm8753_reg);
-       codec->reg_cache = kmemdup(wm8753_reg, sizeof(wm8753_reg), GFP_KERNEL);
+       if (!wm8753_codec) {
+               dev_err(&pdev->dev, "WM8753 codec not yet registered\n");
+               return -EINVAL;
+       }
 
-       if (codec->reg_cache == NULL)
-               return -ENOMEM;
+       socdev->card->codec = wm8753_codec;
+       codec = wm8753_codec;
 
        wm8753_set_dai_mode(codec, 0);
 
-       ret = wm8753_reset(codec);
-       if (ret < 0) {
-               printk(KERN_ERR "wm8753: failed to reset device\n");
-               return ret;
-       }
-
        /* register pcms */
        ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
        if (ret < 0) {
@@ -1579,36 +1569,7 @@ static int wm8753_init(struct snd_soc_device *socdev)
                goto pcm_err;
        }
 
-       /* charge output caps */
-       wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
-       codec->bias_level = SND_SOC_BIAS_STANDBY;
-       schedule_delayed_work(&codec->delayed_work,
-               msecs_to_jiffies(caps_charge));
-
-       /* set the update bits */
-       reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
-       wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
-       wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_LADC);
-       wm8753_write(codec, WM8753_LADC, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_RADC);
-       wm8753_write(codec, WM8753_RADC, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
-       wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
-       wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
-       wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
-       wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
-       wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
-       reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
-       wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
-
-       snd_soc_add_controls(codec, wm8753_snd_controls,
-                               ARRAY_SIZE(wm8753_snd_controls));
+       wm8753_add_controls(codec);
        wm8753_add_widgets(codec);
        ret = snd_soc_init_card(socdev);
        if (ret < 0) {
@@ -1616,110 +1577,13 @@ static int wm8753_init(struct snd_soc_device *socdev)
                goto card_err;
        }
 
-       return ret;
+       return 0;
 
 card_err:
        snd_soc_free_pcms(socdev);
        snd_soc_dapm_free(socdev);
-pcm_err:
-       kfree(codec->reg_cache);
-       return ret;
-}
-
-/* If the i2c layer weren't so broken, we could pass this kind of data
-   around */
-static struct snd_soc_device *wm8753_socdev;
-
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-static struct i2c_driver wm8753_i2c_driver;
-
-static int wm8753_add_i2c_device(struct platform_device *pdev,
-                                const struct wm8753_setup_data *setup)
-{
-       struct i2c_board_info info;
-       struct i2c_adapter *adapter;
-       struct i2c_client *client;
-       int ret;
-
-       ret = i2c_add_driver(&wm8753_i2c_driver);
-       if (ret != 0) {
-               dev_err(&pdev->dev, "can't add i2c driver\n");
-               return ret;
-       }
-
-       memset(&info, 0, sizeof(struct i2c_board_info));
-       info.addr = setup->i2c_address;
-       strlcpy(info.type, "wm8753", I2C_NAME_SIZE);
-
-       adapter = i2c_get_adapter(setup->i2c_bus);
-       if (!adapter) {
-               dev_err(&pdev->dev, "can't get i2c adapter %d\n",
-                       setup->i2c_bus);
-               goto err_driver;
-       }
-
-       client = i2c_new_device(adapter, &info);
-       i2c_put_adapter(adapter);
-       if (!client) {
-               dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
-                       (unsigned int)info.addr);
-               goto err_driver;
-       }
-
-       return 0;
-
-err_driver:
-       i2c_del_driver(&wm8753_i2c_driver);
-       return -ENODEV;
-}
-#endif
-
-static int wm8753_probe(struct platform_device *pdev)
-{
-       struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-       struct wm8753_setup_data *setup;
-       struct snd_soc_codec *codec;
-       struct wm8753_priv *wm8753;
-       int ret = 0;
-
-       setup = socdev->codec_data;
-       codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
-       if (codec == NULL)
-               return -ENOMEM;
-
-       wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
-       if (wm8753 == NULL) {
-               kfree(codec);
-               return -ENOMEM;
-       }
-
-       codec->private_data = wm8753;
-       socdev->card->codec = codec;
-       mutex_init(&codec->mutex);
-       INIT_LIST_HEAD(&codec->dapm_widgets);
-       INIT_LIST_HEAD(&codec->dapm_paths);
-       wm8753_socdev = socdev;
-       INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
-
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-       if (setup->i2c_address) {
-               codec->hw_write = (hw_write_t)i2c_master_send;
-               ret = wm8753_add_i2c_device(pdev, setup);
-       }
-#endif
-#if defined(CONFIG_SPI_MASTER)
-       if (setup->spi) {
-               codec->hw_write = (hw_write_t)wm8753_spi_write;
-               ret = spi_register_driver(&wm8753_spi_driver);
-               if (ret != 0)
-                       printk(KERN_ERR "can't add spi driver");
-       }
-#endif
 
-       if (ret != 0) {
-               kfree(codec->private_data);
-               kfree(codec);
-       }
+pcm_err:
        return ret;
 }
 
@@ -1746,26 +1610,9 @@ static int run_delayed_work(struct delayed_work *dwork)
 static int wm8753_remove(struct platform_device *pdev)
 {
        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-       struct snd_soc_codec *codec = socdev->card->codec;
-       struct wm8753_setup_data *setup = socdev->codec_data;
 
-       if (codec->control_data)
-               wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
-       run_delayed_work(&codec->delayed_work);
        snd_soc_free_pcms(socdev);
        snd_soc_dapm_free(socdev);
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-       if (setup->i2c_address) {
-               i2c_unregister_device(codec->control_data);
-               i2c_del_driver(&wm8753_i2c_driver);
-       }
-#endif
-#if defined(CONFIG_SPI_MASTER)
-       if (setup->spi)
-               spi_unregister_driver(&wm8753_spi_driver);
-#endif
-       kfree(codec->private_data);
-       kfree(codec);
 
        return 0;
 }
@@ -1778,30 +1625,134 @@ struct snd_soc_codec_device soc_codec_dev_wm8753 = {
 };
 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
 
+static int wm8753_register(struct wm8753_priv *wm8753)
+{
+       int ret, i;
+       struct snd_soc_codec *codec = &wm8753->codec;
+       u16 reg;
+
+       if (wm8753_codec) {
+               dev_err(codec->dev, "Multiple WM8753 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 = "WM8753";
+       codec->owner = THIS_MODULE;
+       codec->read = wm8753_read_reg_cache;
+       codec->write = wm8753_write;
+       codec->bias_level = SND_SOC_BIAS_STANDBY;
+       codec->set_bias_level = wm8753_set_bias_level;
+       codec->dai = wm8753_dai;
+       codec->num_dai = 2;
+       codec->reg_cache_size = ARRAY_SIZE(wm8753->reg_cache);
+       codec->reg_cache = &wm8753->reg_cache;
+       codec->private_data = wm8753;
+
+       memcpy(codec->reg_cache, wm8753_reg, sizeof(codec->reg_cache));
+       INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
+
+       ret = wm8753_reset(codec);
+       if (ret < 0) {
+               dev_err(codec->dev, "Failed to issue reset\n");
+               goto err;
+       }
+
+       /* charge output caps */
+       wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
+       schedule_delayed_work(&codec->delayed_work,
+                             msecs_to_jiffies(caps_charge));
+
+       /* set the update bits */
+       reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
+       wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
+       wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_LADC);
+       wm8753_write(codec, WM8753_LADC, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_RADC);
+       wm8753_write(codec, WM8753_RADC, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
+       wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
+       wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
+       wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
+       wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
+       wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
+       reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
+       wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
+
+       wm8753_codec = codec;
+
+       for (i = 0; i < ARRAY_SIZE(wm8753_dai); i++)
+               wm8753_dai[i].dev = codec->dev;
+
+       ret = snd_soc_register_codec(codec);
+       if (ret != 0) {
+               dev_err(codec->dev, "Failed to register codec: %d\n", ret);
+               goto err;
+       }
+
+       ret = snd_soc_register_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai));
+       if (ret != 0) {
+               dev_err(codec->dev, "Failed to register DAIs: %d\n", ret);
+               goto err_codec;
+       }
+
+       return 0;
+
+err_codec:
+       run_delayed_work(&codec->delayed_work);
+       snd_soc_unregister_codec(codec);
+err:
+       kfree(wm8753);
+       return ret;
+}
+
+static void wm8753_unregister(struct wm8753_priv *wm8753)
+{
+       wm8753_set_bias_level(&wm8753->codec, SND_SOC_BIAS_OFF);
+       run_delayed_work(&wm8753->codec.delayed_work);
+       snd_soc_unregister_dais(&wm8753_dai[0], ARRAY_SIZE(wm8753_dai));
+       snd_soc_unregister_codec(&wm8753->codec);
+       kfree(wm8753);
+       wm8753_codec = NULL;
+}
+
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 
 static int wm8753_i2c_probe(struct i2c_client *i2c,
                            const struct i2c_device_id *id)
 {
-       struct snd_soc_device *socdev = wm8753_socdev;
-       struct snd_soc_codec *codec = socdev->card->codec;
-       int ret;
+       struct snd_soc_codec *codec;
+       struct wm8753_priv *wm8753;
 
-       i2c_set_clientdata(i2c, codec);
-       codec->control_data = i2c;
+       wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
+       if (wm8753 == NULL)
+               return -ENOMEM;
 
-       ret = wm8753_init(socdev);
-       if (ret < 0)
-               pr_err("failed to initialise WM8753\n");
+        codec = &wm8753->codec;
+        codec->hw_write = (hw_write_t)i2c_master_send;
+        codec->control_data = i2c;
+        i2c_set_clientdata(i2c, wm8753);
 
-       return ret;
+        codec->dev = &i2c->dev;
+
+       return wm8753_register(wm8753);
 }
 
 static int wm8753_i2c_remove(struct i2c_client *client)
 {
-       struct snd_soc_codec *codec = i2c_get_clientdata(client);
-       kfree(codec->reg_cache);
-       return 0;
+        struct wm8753_priv *wm8753 = i2c_get_clientdata(client);
+        wm8753_unregister(wm8753);
+        return 0;
 }
 
 static const struct i2c_device_id wm8753_i2c_id[] = {
@@ -1812,7 +1763,7 @@ MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
 
 static struct i2c_driver wm8753_i2c_driver = {
        .driver = {
-               .name = "WM8753 I2C Codec",
+               .name = "wm8753",
                .owner = THIS_MODULE,
        },
        .probe =    wm8753_i2c_probe,
@@ -1848,21 +1799,27 @@ static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
 
 static int __devinit wm8753_spi_probe(struct spi_device *spi)
 {
-       struct snd_soc_device *socdev = wm8753_socdev;
-       struct snd_soc_codec *codec = socdev->card->codec;
-       int ret;
+       struct snd_soc_codec *codec;
+       struct wm8753_priv *wm8753;
+
+       wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
+       if (wm8753 == NULL)
+               return -ENOMEM;
 
+       codec = &wm8753->codec;
        codec->control_data = spi;
+       codec->hw_write = (hw_write_t)wm8753_spi_write;
+       codec->dev = &spi->dev;
 
-       ret = wm8753_init(socdev);
-       if (ret < 0)
-               dev_err(&spi->dev, "failed to initialise WM8753\n");
+       spi->dev.driver_data = wm8753;
 
-       return ret;
+       return wm8753_register(wm8753);
 }
 
 static int __devexit wm8753_spi_remove(struct spi_device *spi)
 {
+       struct wm8753_priv *wm8753 = spi->dev.driver_data;
+       wm8753_unregister(wm8753);
        return 0;
 }
 
@@ -1879,13 +1836,29 @@ static struct spi_driver wm8753_spi_driver = {
 
 static int __init wm8753_modinit(void)
 {
-       return snd_soc_register_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
+       int ret;
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+       ret = i2c_add_driver(&wm8753_i2c_driver);
+       if (ret != 0)
+               pr_err("Failed to register WM8753 I2C driver: %d\n", ret);
+#endif
+#if defined(CONFIG_SPI_MASTER)
+       ret = spi_register_driver(&wm8753_spi_driver);
+       if (ret != 0)
+               pr_err("Failed to register WM8753 SPI driver: %d\n", ret);
+#endif
+       return 0;
 }
 module_init(wm8753_modinit);
 
 static void __exit wm8753_exit(void)
 {
-       snd_soc_unregister_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+       i2c_del_driver(&wm8753_i2c_driver);
+#endif
+#if defined(CONFIG_SPI_MASTER)
+       spi_unregister_driver(&wm8753_spi_driver);
+#endif
 }
 module_exit(wm8753_exit);
 

diff --git a/sound/soc/codecs/wm8753.h b/sound/soc/codecs/wm8753.h
index f55704ce931b44e135b8038967eaebf751dbf632..57b2ba244040dea6a26e806c57401cd22a27ebf3 100644 (file)
--- a/sound/soc/codecs/wm8753.h
+++ b/sound/soc/codecs/wm8753.h
@@ -77,12 +77,6 @@
 #define WM8753_BIASCTL         0x3d
 #define WM8753_ADCTL2          0x3f
 
-struct wm8753_setup_data {
-       int spi;
-       int i2c_bus;
-       unsigned short i2c_address;
-};
-
 #define WM8753_PLL1                    0
 #define WM8753_PLL2                    1
 

diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c
index 45bb12e8ea447df922a5f99c02d9479569bd632d..286e11ad50ea9d0d56f6e28ab6578a091e88651d 100644 (file)
--- a/sound/soc/s3c24xx/neo1973_wm8753.c
+++ b/sound/soc/s3c24xx/neo1973_wm8753.c
@@ -585,15 +585,9 @@ static struct snd_soc_card neo1973 = {
        .num_links = ARRAY_SIZE(neo1973_dai),
 };
 
-static struct wm8753_setup_data neo1973_wm8753_setup = {
-       .i2c_bus = 0,
-       .i2c_address = 0x1a,
-};
-
 static struct snd_soc_device neo1973_snd_devdata = {
        .card = &neo1973,
        .codec_dev = &soc_codec_dev_wm8753,
-       .codec_data = &neo1973_wm8753_setup,
 };
 
 static int lm4857_i2c_probe(struct i2c_client *client,