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yaml
---
r: 110976
b: refs/heads/master
c: b647130
h: refs/heads/master
v: v3
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Jean Delvare authored and Jaroslav Kysela committed Sep 9, 2008
1 parent 240efb8 commit f19e2bf
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Showing 2 changed files with 59 additions and 53 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: ad4503d8a0636ddae8175bd05b652264c4260e96
refs/heads/master: b6471305bbda16fd0d8d96a5cfb01fa6aec87eb5
110 changes: 58 additions & 52 deletions trunk/sound/soc/s3c24xx/neo1973_wm8753.c
Original file line number Diff line number Diff line change
Expand Up @@ -597,54 +597,20 @@ static struct snd_soc_device neo1973_snd_devdata = {
.codec_data = &neo1973_wm8753_setup,
};

static struct i2c_client client_template;

static const unsigned short normal_i2c[] = { 0x7C, I2C_CLIENT_END };

/* Magic definition of all other variables and things */
I2C_CLIENT_INSMOD;

static int lm4857_amp_probe(struct i2c_adapter *adap, int addr, int kind)
static int lm4857_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int ret;

DBG("Entered %s\n", __func__);

client_template.adapter = adap;
client_template.addr = addr;

i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL);
if (i2c == NULL)
return -ENOMEM;

ret = i2c_attach_client(i2c);
if (ret < 0) {
printk(KERN_ERR "LM4857 failed to attach at addr %x\n", addr);
goto exit_err;
}

lm4857_write_regs();
return ret;

exit_err:
kfree(i2c);
return ret;
}

static int lm4857_i2c_detach(struct i2c_client *client)
{
DBG("Entered %s\n", __func__);

i2c_detach_client(client);
kfree(client);
return 0;
}

static int lm4857_i2c_attach(struct i2c_adapter *adap)
static int lm4857_i2c_remove(struct i2c_client *client)
{
DBG("Entered %s\n", __func__);

return i2c_probe(adap, &addr_data, lm4857_amp_probe);
return 0;
}

static u8 lm4857_state;
Expand Down Expand Up @@ -682,27 +648,67 @@ static void lm4857_shutdown(struct i2c_client *dev)
lm4857_write_regs();
}

/* corgi i2c codec control layer */
static const struct i2c_device_id lm4857_i2c_id[] = {
{ "neo1973_lm4857", 0 }
{ }
};

static struct i2c_driver lm4857_i2c_driver = {
.driver = {
.name = "LM4857 I2C Amp",
.owner = THIS_MODULE,
},
.id = I2C_DRIVERID_LM4857,
.suspend = lm4857_suspend,
.resume = lm4857_resume,
.shutdown = lm4857_shutdown,
.attach_adapter = lm4857_i2c_attach,
.detach_client = lm4857_i2c_detach,
.command = NULL,
};

static struct i2c_client client_template = {
.name = "LM4857",
.driver = &lm4857_i2c_driver,
.probe = lm4857_i2c_probe,
.remove = lm4857_i2c_remove,
.id_table = lm4857_i2c_id,
};

static struct platform_device *neo1973_snd_device;
static struct i2c_client *lm4857_client;

static int __init neo1973_add_lm4857_device(struct platform_device *pdev,
int i2c_bus,
unsigned short i2c_address)
{
struct i2c_board_info info;
struct i2c_adapter *adapter;
struct i2c_client *client;
int ret;

ret = i2c_add_driver(&lm4857_i2c_driver);
if (ret != 0) {
dev_err(&pdev->dev, "can't add lm4857 driver\n");
return ret;
}

memset(&info, 0, sizeof(struct i2c_board_info));
info.addr = i2c_address;
strlcpy(info.type, "neo1973_lm4857", I2C_NAME_SIZE);

adapter = i2c_get_adapter(i2c_bus);
if (!adapter) {
dev_err(&pdev->dev, "can't get i2c adapter %d\n", i2c_bus);
goto err_driver;
}

client = i2c_new_device(adapter, &info);
i2c_put_adapter(adapter);
if (!client) {
dev_err(&pdev->dev, "can't add lm4857 device at 0x%x\n",
(unsigned int)info.addr);
goto err_driver;
}

lm4857_client = client;
return 0;

err_driver:
i2c_del_driver(&lm4857_i2c_driver);
return -ENODEV;
}

static int __init neo1973_init(void)
{
Expand All @@ -723,11 +729,10 @@ static int __init neo1973_init(void)
return ret;
}

ret = i2c_add_driver(&lm4857_i2c_driver);
if (ret != 0) {
printk(KERN_ERR "can't add i2c driver");
ret = neo1973_add_lm4857_device(neo1973_snd_device,
neo1973_wm8753_setup, 0x7C);
if (ret != 0)
platform_device_unregister(neo1973_snd_device);
}

return ret;
}
Expand All @@ -736,6 +741,7 @@ static void __exit neo1973_exit(void)
{
DBG("Entered %s\n", __func__);

i2c_unregister_device(lm4857_client);
i2c_del_driver(&lm4857_i2c_driver);
platform_device_unregister(neo1973_snd_device);
}
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