1 files changed, 49 insertions, 124 deletions

diff --git a/sound/soc/codecs/cx20442.c b/sound/soc/codecs/cx20442.c
index f07a415c753f..e8d27c8f9ba3 100644
--- a/sound/soc/codecs/cx20442.c
+++ b/sound/soc/codecs/cx20442.c
@@ -24,7 +24,8 @@
 
 
 struct cx20442_priv {
-        struct snd_soc_codec codec;
+        enum snd_soc_control_type control_type;
+        void *control_data;
         u8 reg_cache[1];
 };
 
@@ -102,7 +103,7 @@ static unsigned int cx20442_read_reg_cache(struct snd_soc_codec *codec,
 {
         u8 *reg_cache = codec->reg_cache;
 
-        if (reg >= codec->reg_cache_size)
+        if (reg >= codec->driver->reg_cache_size)
                 return -EINVAL;
 
         return reg_cache[reg];
@@ -164,16 +165,17 @@ static int cx20442_pm_to_v253_vsp(u8 value)
 static int cx20442_write(struct snd_soc_codec *codec, unsigned int reg,
                                                         unsigned int value)
 {
+        struct cx20442_priv *cx20442 = snd_soc_codec_get_drvdata(codec);
         u8 *reg_cache = codec->reg_cache;
         int vls, vsp, old, len;
         char buf[18];
 
-        if (reg >= codec->reg_cache_size)
+        if (reg >= codec->driver->reg_cache_size)
                 return -EINVAL;
 
         /* hw_write and control_data pointers required for talking to the modem
          * are expected to be set by the line discipline initialization code */
-        if (!codec->hw_write || !codec->control_data)
+        if (!codec->hw_write || !cx20442->control_data)
                 return -EIO;
 
         old = reg_cache[reg];
@@ -202,17 +204,13 @@ static int cx20442_write(struct snd_soc_codec *codec, unsigned int reg,
                 return -ENOMEM;
 
         dev_dbg(codec->dev, "%s: %s\n", __func__, buf);
-        if (codec->hw_write(codec->control_data, buf, len) != len)
+        if (codec->hw_write(cx20442->control_data, buf, len) != len)
                 return -EIO;
 
         return 0;
 }
 
 
-/* Moved up here as line discipline referres it during initialization */
-static struct snd_soc_codec *cx20442_codec;
-
-
 /*
  * Line discpline related code
  *
@@ -228,15 +226,15 @@ static const char *v253_init = "ate0m0q0+fclass=8\r";
 /* Line discipline .open() */
 static int v253_open(struct tty_struct *tty)
 {
-        struct snd_soc_codec *codec = cx20442_codec;
         int ret, len = strlen(v253_init);
 
         /* Doesn't make sense without write callback */
         if (!tty->ops->write)
                 return -EINVAL;
 
-        /* Pass the codec structure address for use by other ldisc callbacks */
-        tty->disc_data = codec;
+        /* Won't work if no codec pointer has been passed by a card driver */
+        if (!tty->disc_data)
+                return -ENODEV;
 
         if (tty->ops->write(tty, v253_init, len) != len) {
                 ret = -EIO;
@@ -253,15 +251,18 @@ err:
 static void v253_close(struct tty_struct *tty)
 {
         struct snd_soc_codec *codec = tty->disc_data;
+        struct cx20442_priv *cx20442;
 
         tty->disc_data = NULL;
 
         if (!codec)
                 return;
 
+        cx20442 = snd_soc_codec_get_drvdata(codec);
+
         /* Prevent the codec driver from further accessing the modem */
         codec->hw_write = NULL;
-        codec->control_data = NULL;
+        cx20442->control_data = NULL;
         codec->pop_time = 0;
 }
 
@@ -277,15 +278,18 @@ static void v253_receive(struct tty_struct *tty,
                                 const unsigned char *cp, char *fp, int count)
 {
         struct snd_soc_codec *codec = tty->disc_data;
+        struct cx20442_priv *cx20442;
 
         if (!codec)
                 return;
 
-        if (!codec->control_data) {
+        cx20442 = snd_soc_codec_get_drvdata(codec);
+
+        if (!cx20442->control_data) {
                 /* First modem response, complete setup procedure */
 
                 /* Set up codec driver access to modem controls */
-                codec->control_data = tty;
+                cx20442->control_data = tty;
                 codec->hw_write = (hw_write_t)tty->ops->write;
                 codec->pop_time = 1;
         }
@@ -313,8 +317,8 @@ EXPORT_SYMBOL_GPL(v253_ops);
  * Codec DAI
  */
 
-struct snd_soc_dai cx20442_dai = {
-        .name = "CX20442",
+static struct snd_soc_dai_driver cx20442_dai = {
+        .name = "cx20442-voice",
         .playback = {
                 .stream_name = "Playback",
                 .channels_min = 1,
@@ -330,142 +334,63 @@ struct snd_soc_dai cx20442_dai = {
                 .formats = SNDRV_PCM_FMTBIT_S16_LE,
         },
 };
-EXPORT_SYMBOL_GPL(cx20442_dai);
 
-static int cx20442_codec_probe(struct platform_device *pdev)
+static int cx20442_codec_probe(struct snd_soc_codec *codec)
 {
-        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-        struct snd_soc_codec *codec;
-        int ret;
-
-        if (!cx20442_codec) {
-                dev_err(&pdev->dev, "cx20442 not yet discovered\n");
-                return -ENODEV;
-        }
-        codec = cx20442_codec;
-
-        socdev->card->codec = codec;
+        struct cx20442_priv *cx20442;
 
-        /* register pcms */
-        ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
-        if (ret < 0) {
-                dev_err(&pdev->dev, "failed to create pcms\n");
-                goto pcm_err;
-        }
+        cx20442 = kzalloc(sizeof(struct cx20442_priv), GFP_KERNEL);
+        if (cx20442 == NULL)
+                return -ENOMEM;
+        snd_soc_codec_set_drvdata(codec, cx20442);
 
         cx20442_add_widgets(codec);
 
-pcm_err:
-        return ret;
+        cx20442->control_data = NULL;
+        codec->hw_write = NULL;
+        codec->pop_time = 0;
+
+        return 0;
 }
 
 /* power down chip */
-static int cx20442_codec_remove(struct platform_device *pdev)
+static int cx20442_codec_remove(struct snd_soc_codec *codec)
 {
-        struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+        struct cx20442_priv *cx20442 = snd_soc_codec_get_drvdata(codec);
 
-        snd_soc_free_pcms(socdev);
-        snd_soc_dapm_free(socdev);
+        if (cx20442->control_data) {
+                        struct tty_struct *tty = cx20442->control_data;
+                        tty_hangup(tty);
+        }
 
+        kfree(cx20442);
         return 0;
 }
 
-struct snd_soc_codec_device cx20442_codec_dev = {
+static struct snd_soc_codec_driver cx20442_codec_dev = {
         .probe =        cx20442_codec_probe,
         .remove =       cx20442_codec_remove,
+        .reg_cache_size = 1,
+        .reg_word_size = sizeof(u8),
+        .read = cx20442_read_reg_cache,
+        .write = cx20442_write,
 };
-EXPORT_SYMBOL_GPL(cx20442_codec_dev);
-
-static int cx20442_register(struct cx20442_priv *cx20442)
-{
-        struct snd_soc_codec *codec = &cx20442->codec;
-        int ret;
-
-        mutex_init(&codec->mutex);
-        INIT_LIST_HEAD(&codec->dapm_widgets);
-        INIT_LIST_HEAD(&codec->dapm_paths);
-
-        codec->name = "CX20442";
-        codec->owner = THIS_MODULE;
-        snd_soc_codec_set_drvdata(codec, cx20442);
-
-        codec->dai = &cx20442_dai;
-        codec->num_dai = 1;
-
-        codec->reg_cache = &cx20442->reg_cache;
-        codec->reg_cache_size = ARRAY_SIZE(cx20442->reg_cache);
-        codec->read = cx20442_read_reg_cache;
-        codec->write = cx20442_write;
-
-        codec->bias_level = SND_SOC_BIAS_OFF;
-
-        cx20442_dai.dev = codec->dev;
-
-        cx20442_codec = codec;
-
-        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_dai(&cx20442_dai);
-        if (ret != 0) {
-                dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
-                goto err_codec;
-        }
-
-        return 0;
-
-err_codec:
-        snd_soc_unregister_codec(codec);
-err:
-        cx20442_codec = NULL;
-        kfree(cx20442);
-        return ret;
-}
-
-static void cx20442_unregister(struct cx20442_priv *cx20442)
-{
-        snd_soc_unregister_dai(&cx20442_dai);
-        snd_soc_unregister_codec(&cx20442->codec);
-
-        cx20442_codec = NULL;
-        kfree(cx20442);
-}
 
 static int cx20442_platform_probe(struct platform_device *pdev)
 {
-        struct cx20442_priv *cx20442;
-        struct snd_soc_codec *codec;
-
-        cx20442 = kzalloc(sizeof(struct cx20442_priv), GFP_KERNEL);
-        if (cx20442 == NULL)
-                return -ENOMEM;
-
-        codec = &cx20442->codec;
-
-        codec->control_data = NULL;
-        codec->hw_write = NULL;
-        codec->pop_time = 0;
-
-        codec->dev = &pdev->dev;
-        platform_set_drvdata(pdev, cx20442);
-
-        return cx20442_register(cx20442);
+        return snd_soc_register_codec(&pdev->dev,
+                        &cx20442_codec_dev, &cx20442_dai, 1);
 }
 
 static int __exit cx20442_platform_remove(struct platform_device *pdev)
 {
-        struct cx20442_priv *cx20442 = platform_get_drvdata(pdev);
-
-        cx20442_unregister(cx20442);
+        snd_soc_unregister_codec(&pdev->dev);
         return 0;
 }
 
 static struct platform_driver cx20442_platform_driver = {
         .driver = {
-                .name = "cx20442",
+                .name = "cx20442-codec",
                 .owner = THIS_MODULE,
                 },
         .probe = cx20442_platform_probe,
@@ -487,4 +412,4 @@ module_exit(cx20442_exit);
 MODULE_DESCRIPTION("ASoC CX20442-11 voice modem codec driver");
 MODULE_AUTHOR("Janusz Krzysztofik");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:cx20442");
+MODULE_ALIAS("platform:cx20442-codec");