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Subject[PATCH 1/8] MFD: twl4030-codec: Rename internals from codec to audio
Date
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>
---
drivers/mfd/twl4030-codec.c | 135 ++++++++++++++++++++++---------------------
1 files changed, 68 insertions(+), 67 deletions(-)
diff --git a/drivers/mfd/twl4030-codec.c b/drivers/mfd/twl4030-codec.c
index 2bf4136..e1782b3 100644
--- a/drivers/mfd/twl4030-codec.c
+++ b/drivers/mfd/twl4030-codec.c
@@ -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>
*
@@ -31,53 +32,53 @@
#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");
--
1.7.5.3


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