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yaml
---
r: 120300
b: refs/heads/master
c: f075233
h: refs/heads/master
v: v3
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Mark Brown committed Dec 9, 2008
1 parent c214e3f commit 54379b8
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Showing 2 changed files with 21 additions and 78 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 6b05eda6383d89bffc21da654d148733e7839540
refs/heads/master: f0752331b89ce79063f765545dd7dd5f49d9a713
97 changes: 20 additions & 77 deletions trunk/sound/soc/codecs/wm8900.c
Original file line number Diff line number Diff line change
Expand Up @@ -1382,32 +1382,21 @@ static int wm8900_init(struct snd_soc_device *socdev)
return ret;
}

static struct snd_soc_device *wm8900_socdev;
static struct i2c_client *wm8900_client;

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)

/* If the i2c layer weren't so broken, we could pass this kind of data
around */
static int wm8900_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct snd_soc_device *socdev = wm8900_socdev;
struct snd_soc_codec *codec = socdev->codec;
int ret;

i2c_set_clientdata(i2c, codec);
codec->control_data = i2c;

ret = wm8900_init(socdev);
if (ret < 0)
dev_err(&i2c->dev, "failed to initialise WM8900\n");
return ret;
wm8900_client = i2c;
wm8900_dai.dev = &i2c->dev;
return snd_soc_register_dai(&wm8900_dai);
}

static int wm8900_i2c_remove(struct i2c_client *client)
{
struct snd_soc_codec *codec = i2c_get_clientdata(client);
kfree(codec->reg_cache);
snd_soc_unregister_dai(&wm8900_dai);
wm8900_dai.dev = NULL;
wm8900_client = NULL;
return 0;
}

Expand All @@ -1427,57 +1416,17 @@ static struct i2c_driver wm8900_i2c_driver = {
.id_table = wm8900_i2c_id,
};

static int wm8900_add_i2c_device(struct platform_device *pdev,
const struct wm8900_setup_data *setup)
{
struct i2c_board_info info;
struct i2c_adapter *adapter;
struct i2c_client *client;
int ret;

ret = i2c_add_driver(&wm8900_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, "wm8900", 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(&wm8900_i2c_driver);
return -ENODEV;
}
#endif

static int wm8900_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct wm8900_setup_data *setup;
struct snd_soc_codec *codec;
int ret = 0;

dev_info(&pdev->dev, "WM8900 Audio Codec\n");
if (!wm8900_client) {
dev_err(&pdev->dev, "I2C client not yet instantiated\n");
return -ENODEV;
}

setup = socdev->codec_data;
codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
if (codec == NULL)
return -ENOMEM;
Expand All @@ -1490,15 +1439,13 @@ static int wm8900_probe(struct platform_device *pdev)

codec->set_bias_level = wm8900_set_bias_level;

wm8900_socdev = socdev;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
if (setup->i2c_address) {
codec->hw_write = (hw_write_t)i2c_master_send;
ret = wm8900_add_i2c_device(pdev, setup);
}
#else
#error Non-I2C interfaces not yet supported
#endif
codec->hw_write = (hw_write_t)i2c_master_send;
codec->control_data = wm8900_client;

ret = wm8900_init(socdev);
if (ret != 0)
kfree(codec);

return ret;
}

Expand All @@ -1513,10 +1460,6 @@ static int wm8900_remove(struct platform_device *pdev)

snd_soc_free_pcms(socdev);
snd_soc_dapm_free(socdev);
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_unregister_device(codec->control_data);
i2c_del_driver(&wm8900_i2c_driver);
#endif
kfree(codec);

return 0;
Expand All @@ -1532,13 +1475,13 @@ EXPORT_SYMBOL_GPL(soc_codec_dev_wm8900);

static int __devinit wm8900_modinit(void)
{
return snd_soc_register_dai(&wm8900_dai);
return i2c_add_driver(&wm8900_i2c_driver);
}
module_init(wm8900_modinit);

static void __exit wm8900_exit(void)
{
snd_soc_unregister_dai(&wm8900_dai);
i2c_del_driver(&wm8900_i2c_driver);
}
module_exit(wm8900_exit);

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