MFD: twl4030-codec: Rename internals from codec to audio
Peter Ujfalusi [Tue, 3 May 2011 15:03:43 +0000 (18:03 +0300)]
In preparation of renaming the driver from twl4030-codec
to twl4030-audio, first do some clean ups in the driver,
which does not cause any problems outside.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/twl4030-codec.c

index 2bf4136..e1782b3 100644 (file)
@@ -1,5 +1,6 @@
 /*
- * MFD driver for twl4030 codec submodule
+ * MFD driver for twl4030 audio submodule, which contains an audio codec, and
+ * the vibra control.
  *
  * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
  *
 #include <linux/mfd/core.h>
 #include <linux/mfd/twl4030-codec.h>
 
-#define TWL4030_CODEC_CELLS    2
+#define TWL4030_AUDIO_CELLS    2
 
-static struct platform_device *twl4030_codec_dev;
+static struct platform_device *twl4030_audio_dev;
 
-struct twl4030_codec_resource {
+struct twl4030_audio_resource {
        int request_count;
        u8 reg;
        u8 mask;
 };
 
-struct twl4030_codec {
+struct twl4030_audio {
        unsigned int audio_mclk;
        struct mutex mutex;
-       struct twl4030_codec_resource resource[TWL4030_CODEC_RES_MAX];
-       struct mfd_cell cells[TWL4030_CODEC_CELLS];
+       struct twl4030_audio_resource resource[TWL4030_CODEC_RES_MAX];
+       struct mfd_cell cells[TWL4030_AUDIO_CELLS];
 };
 
 /*
  * Modify the resource, the function returns the content of the register
  * after the modification.
  */
-static int twl4030_codec_set_resource(enum twl4030_codec_res id, int enable)
+static int twl4030_audio_set_resource(enum twl4030_codec_res id, int enable)
 {
-       struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+       struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
        u8 val;
 
        twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &val,
-                       codec->resource[id].reg);
+                       audio->resource[id].reg);
 
        if (enable)
-               val |= codec->resource[id].mask;
+               val |= audio->resource[id].mask;
        else
-               val &= ~codec->resource[id].mask;
+               val &= ~audio->resource[id].mask;
 
        twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
-                                       val, codec->resource[id].reg);
+                                       val, audio->resource[id].reg);
 
        return val;
 }
 
-static inline int twl4030_codec_get_resource(enum twl4030_codec_res id)
+static inline int twl4030_audio_get_resource(enum twl4030_codec_res id)
 {
-       struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+       struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
        u8 val;
 
        twl_i2c_read_u8(TWL4030_MODULE_AUDIO_VOICE, &val,
-                       codec->resource[id].reg);
+                       audio->resource[id].reg);
 
        return val;
 }
@@ -88,24 +89,24 @@ static inline int twl4030_codec_get_resource(enum twl4030_codec_res id)
  */
 int twl4030_codec_enable_resource(enum twl4030_codec_res id)
 {
-       struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+       struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
        int val;
 
        if (id >= TWL4030_CODEC_RES_MAX) {
-               dev_err(&twl4030_codec_dev->dev,
+               dev_err(&twl4030_audio_dev->dev,
                                "Invalid resource ID (%u)\n", id);
                return -EINVAL;
        }
 
-       mutex_lock(&codec->mutex);
-       if (!codec->resource[id].request_count)
+       mutex_lock(&audio->mutex);
+       if (!audio->resource[id].request_count)
                /* Resource was disabled, enable it */
-               val = twl4030_codec_set_resource(id, 1);
+               val = twl4030_audio_set_resource(id, 1);
        else
-               val = twl4030_codec_get_resource(id);
+               val = twl4030_audio_get_resource(id);
 
-       codec->resource[id].request_count++;
-       mutex_unlock(&codec->mutex);
+       audio->resource[id].request_count++;
+       mutex_unlock(&audio->mutex);
 
        return val;
 }
@@ -117,31 +118,31 @@ EXPORT_SYMBOL_GPL(twl4030_codec_enable_resource);
  */
 int twl4030_codec_disable_resource(unsigned id)
 {
-       struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+       struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
        int val;
 
        if (id >= TWL4030_CODEC_RES_MAX) {
-               dev_err(&twl4030_codec_dev->dev,
+               dev_err(&twl4030_audio_dev->dev,
                                "Invalid resource ID (%u)\n", id);
                return -EINVAL;
        }
 
-       mutex_lock(&codec->mutex);
-       if (!codec->resource[id].request_count) {
-               dev_err(&twl4030_codec_dev->dev,
+       mutex_lock(&audio->mutex);
+       if (!audio->resource[id].request_count) {
+               dev_err(&twl4030_audio_dev->dev,
                        "Resource has been disabled already (%u)\n", id);
-               mutex_unlock(&codec->mutex);
+               mutex_unlock(&audio->mutex);
                return -EPERM;
        }
-       codec->resource[id].request_count--;
+       audio->resource[id].request_count--;
 
-       if (!codec->resource[id].request_count)
+       if (!audio->resource[id].request_count)
                /* Resource can be disabled now */
-               val = twl4030_codec_set_resource(id, 0);
+               val = twl4030_audio_set_resource(id, 0);
        else
-               val = twl4030_codec_get_resource(id);
+               val = twl4030_audio_get_resource(id);
 
-       mutex_unlock(&codec->mutex);
+       mutex_unlock(&audio->mutex);
 
        return val;
 }
@@ -149,15 +150,15 @@ EXPORT_SYMBOL_GPL(twl4030_codec_disable_resource);
 
 unsigned int twl4030_codec_get_mclk(void)
 {
-       struct twl4030_codec *codec = platform_get_drvdata(twl4030_codec_dev);
+       struct twl4030_audio *audio = platform_get_drvdata(twl4030_audio_dev);
 
-       return codec->audio_mclk;
+       return audio->audio_mclk;
 }
 EXPORT_SYMBOL_GPL(twl4030_codec_get_mclk);
 
-static int __devinit twl4030_codec_probe(struct platform_device *pdev)
+static int __devinit twl4030_audio_probe(struct platform_device *pdev)
 {
-       struct twl4030_codec *codec;
+       struct twl4030_audio *audio;
        struct twl4030_codec_data *pdata = pdev->dev.platform_data;
        struct mfd_cell *cell = NULL;
        int ret, childs = 0;
@@ -187,33 +188,33 @@ static int __devinit twl4030_codec_probe(struct platform_device *pdev)
        twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
                                        val, TWL4030_REG_APLL_CTL);
 
-       codec = kzalloc(sizeof(struct twl4030_codec), GFP_KERNEL);
-       if (!codec)
+       audio = kzalloc(sizeof(struct twl4030_audio), GFP_KERNEL);
+       if (!audio)
                return -ENOMEM;
 
-       platform_set_drvdata(pdev, codec);
+       platform_set_drvdata(pdev, audio);
 
-       twl4030_codec_dev = pdev;
-       mutex_init(&codec->mutex);
-       codec->audio_mclk = pdata->audio_mclk;
+       twl4030_audio_dev = pdev;
+       mutex_init(&audio->mutex);
+       audio->audio_mclk = pdata->audio_mclk;
 
        /* Codec power */
-       codec->resource[TWL4030_CODEC_RES_POWER].reg = TWL4030_REG_CODEC_MODE;
-       codec->resource[TWL4030_CODEC_RES_POWER].mask = TWL4030_CODECPDZ;
+       audio->resource[TWL4030_CODEC_RES_POWER].reg = TWL4030_REG_CODEC_MODE;
+       audio->resource[TWL4030_CODEC_RES_POWER].mask = TWL4030_CODECPDZ;
 
        /* PLL */
-       codec->resource[TWL4030_CODEC_RES_APLL].reg = TWL4030_REG_APLL_CTL;
-       codec->resource[TWL4030_CODEC_RES_APLL].mask = TWL4030_APLL_EN;
+       audio->resource[TWL4030_CODEC_RES_APLL].reg = TWL4030_REG_APLL_CTL;
+       audio->resource[TWL4030_CODEC_RES_APLL].mask = TWL4030_APLL_EN;
 
        if (pdata->audio) {
-               cell = &codec->cells[childs];
+               cell = &audio->cells[childs];
                cell->name = "twl4030-codec";
                cell->platform_data = pdata->audio;
                cell->pdata_size = sizeof(*pdata->audio);
                childs++;
        }
        if (pdata->vibra) {
-               cell = &codec->cells[childs];
+               cell = &audio->cells[childs];
                cell->name = "twl4030-vibra";
                cell->platform_data = pdata->vibra;
                cell->pdata_size = sizeof(*pdata->vibra);
@@ -221,7 +222,7 @@ static int __devinit twl4030_codec_probe(struct platform_device *pdev)
        }
 
        if (childs)
-               ret = mfd_add_devices(&pdev->dev, pdev->id, codec->cells,
+               ret = mfd_add_devices(&pdev->dev, pdev->id, audio->cells,
                                      childs, NULL, 0);
        else {
                dev_err(&pdev->dev, "No platform data found for childs\n");
@@ -232,45 +233,45 @@ static int __devinit twl4030_codec_probe(struct platform_device *pdev)
                return 0;
 
        platform_set_drvdata(pdev, NULL);
-       kfree(codec);
-       twl4030_codec_dev = NULL;
+       kfree(audio);
+       twl4030_audio_dev = NULL;
        return ret;
 }
 
-static int __devexit twl4030_codec_remove(struct platform_device *pdev)
+static int __devexit twl4030_audio_remove(struct platform_device *pdev)
 {
-       struct twl4030_codec *codec = platform_get_drvdata(pdev);
+       struct twl4030_audio *audio = platform_get_drvdata(pdev);
 
        mfd_remove_devices(&pdev->dev);
        platform_set_drvdata(pdev, NULL);
-       kfree(codec);
-       twl4030_codec_dev = NULL;
+       kfree(audio);
+       twl4030_audio_dev = NULL;
 
        return 0;
 }
 
 MODULE_ALIAS("platform:twl4030-audio");
 
-static struct platform_driver twl4030_codec_driver = {
-       .probe          = twl4030_codec_probe,
-       .remove         = __devexit_p(twl4030_codec_remove),
+static struct platform_driver twl4030_audio_driver = {
+       .probe          = twl4030_audio_probe,
+       .remove         = __devexit_p(twl4030_audio_remove),
        .driver         = {
                .owner  = THIS_MODULE,
                .name   = "twl4030-audio",
        },
 };
 
-static int __devinit twl4030_codec_init(void)
+static int __devinit twl4030_audio_init(void)
 {
-       return platform_driver_register(&twl4030_codec_driver);
+       return platform_driver_register(&twl4030_audio_driver);
 }
-module_init(twl4030_codec_init);
+module_init(twl4030_audio_init);
 
-static void __devexit twl4030_codec_exit(void)
+static void __devexit twl4030_audio_exit(void)
 {
-       platform_driver_unregister(&twl4030_codec_driver);
+       platform_driver_unregister(&twl4030_audio_driver);
 }
-module_exit(twl4030_codec_exit);
+module_exit(twl4030_audio_exit);
 
 MODULE_AUTHOR("Peter Ujfalusi <peter.ujfalusi@ti.com>");
 MODULE_LICENSE("GPL");