mirror of https://gitee.com/openkylin/linux.git
sound: ASoC: Convert wm8510 to a new-style i2c driver
Convert the wm8510 codec driver to the new (standard) device driver binding model. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Geoffrey Wossum <gwossum@acm.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jean Delvare
Jaroslav Kysela
parent
b6471305bb
commit
41759c2eab
|
|
@ -377,6 +377,7 @@ static struct snd_soc_machine snd_soc_machine_playpaq = {
|
|||
|
||||
|
||||
static struct wm8510_setup_data playpaq_wm8510_setup = {
|
||||
.i2c_bus = 0,
|
||||
.i2c_address = 0x1a,
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -665,88 +665,86 @@ static struct snd_soc_device *wm8510_socdev;
|
|||
/*
|
||||
* WM8510 2 wire address is 0x1a
|
||||
*/
|
||||
#define I2C_DRIVERID_WM8510 0xfefe /* liam - need a proper id */
|
||||
|
||||
static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
|
||||
|
||||
/* Magic definition of all other variables and things */
|
||||
I2C_CLIENT_INSMOD;
|
||||
|
||||
static struct i2c_driver wm8510_i2c_driver;
|
||||
static struct i2c_client client_template;
|
||||
|
||||
/* If the i2c layer weren't so broken, we could pass this kind of data
|
||||
around */
|
||||
|
||||
static int wm8510_codec_probe(struct i2c_adapter *adap, int addr, int kind)
|
||||
static int wm8510_i2c_probe(struct i2c_client *i2c,
|
||||
const struct i2c_device_id *id)
|
||||
{
|
||||
struct snd_soc_device *socdev = wm8510_socdev;
|
||||
struct wm8510_setup_data *setup = socdev->codec_data;
|
||||
struct snd_soc_codec *codec = socdev->codec;
|
||||
struct i2c_client *i2c;
|
||||
int ret;
|
||||
|
||||
if (addr != setup->i2c_address)
|
||||
return -ENODEV;
|
||||
|
||||
client_template.adapter = adap;
|
||||
client_template.addr = addr;
|
||||
|
||||
i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
|
||||
if (i2c == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
i2c_set_clientdata(i2c, codec);
|
||||
codec->control_data = i2c;
|
||||
|
||||
ret = i2c_attach_client(i2c);
|
||||
if (ret < 0) {
|
||||
pr_err("failed to attach codec at addr %x\n", addr);
|
||||
goto err;
|
||||
}
|
||||
|
||||
ret = wm8510_init(socdev);
|
||||
if (ret < 0) {
|
||||
if (ret < 0)
|
||||
pr_err("failed to initialise WM8510\n");
|
||||
goto err;
|
||||
}
|
||||
return ret;
|
||||
|
||||
err:
|
||||
kfree(i2c);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int wm8510_i2c_detach(struct i2c_client *client)
|
||||
static int wm8510_i2c_remove(struct i2c_client *client)
|
||||
{
|
||||
struct snd_soc_codec *codec = i2c_get_clientdata(client);
|
||||
i2c_detach_client(client);
|
||||
kfree(codec->reg_cache);
|
||||
kfree(client);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int wm8510_i2c_attach(struct i2c_adapter *adap)
|
||||
{
|
||||
return i2c_probe(adap, &addr_data, wm8510_codec_probe);
|
||||
}
|
||||
static const struct i2c_device_id wm8510_i2c_id[] = {
|
||||
{ "wm8510", 0 },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
|
||||
|
||||
/* corgi i2c codec control layer */
|
||||
static struct i2c_driver wm8510_i2c_driver = {
|
||||
.driver = {
|
||||
.name = "WM8510 I2C Codec",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
.id = I2C_DRIVERID_WM8510,
|
||||
.attach_adapter = wm8510_i2c_attach,
|
||||
.detach_client = wm8510_i2c_detach,
|
||||
.command = NULL,
|
||||
.probe = wm8510_i2c_probe,
|
||||
.remove = wm8510_i2c_remove,
|
||||
.id_table = wm8510_i2c_id,
|
||||
};
|
||||
|
||||
static struct i2c_client client_template = {
|
||||
.name = "WM8510",
|
||||
.driver = &wm8510_i2c_driver,
|
||||
};
|
||||
static int wm8510_add_i2c_device(struct platform_device *pdev,
|
||||
const struct wm8510_setup_data *setup)
|
||||
{
|
||||
struct i2c_board_info info;
|
||||
struct i2c_adapter *adapter;
|
||||
struct i2c_client *client;
|
||||
int ret;
|
||||
|
||||
ret = i2c_add_driver(&wm8510_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, "wm8510", 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(&wm8510_i2c_driver);
|
||||
return -ENODEV;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int wm8510_probe(struct platform_device *pdev)
|
||||
|
|
@ -771,11 +769,8 @@ static int wm8510_probe(struct platform_device *pdev)
|
|||
wm8510_socdev = socdev;
|
||||
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
|
||||
if (setup->i2c_address) {
|
||||
normal_i2c[0] = setup->i2c_address;
|
||||
codec->hw_write = (hw_write_t)i2c_master_send;
|
||||
ret = i2c_add_driver(&wm8510_i2c_driver);
|
||||
if (ret != 0)
|
||||
printk(KERN_ERR "can't add i2c driver");
|
||||
ret = wm8510_add_i2c_device(pdev, setup);
|
||||
}
|
||||
#else
|
||||
/* Add other interfaces here */
|
||||
|
|
@ -798,6 +793,7 @@ static int wm8510_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(&wm8510_i2c_driver);
|
||||
#endif
|
||||
kfree(codec);
|
||||
|
|
|
|||
|
|
@ -94,6 +94,7 @@
|
|||
#define WM8510_MCLKDIV_12 (7 << 5)
|
||||
|
||||
struct wm8510_setup_data {
|
||||
int i2c_bus;
|
||||
unsigned short i2c_address;
|
||||
};
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue