diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/cs4270.c | 71 |
1 files changed, 15 insertions, 56 deletions
diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c index 9deb8c74fdfd..82d94f00aa45 100644 --- a/sound/soc/codecs/cs4270.c +++ b/sound/soc/codecs/cs4270.c @@ -490,34 +490,7 @@ static int cs4270_mute(struct snd_soc_dai *dai, int mute) #endif -static int cs4270_i2c_probe(struct i2c_adapter *adap, int addr, int kind); - -/* - * Notify the driver that a new I2C bus has been found. - * - * This function is called for each I2C bus in the system. The function - * then asks the I2C subsystem to probe that bus at the addresses on which - * our device (the CS4270) could exist. If a device is found at one of - * those addresses, then our probe function (cs4270_i2c_probe) is called. - */ -static int cs4270_i2c_attach(struct i2c_adapter *adapter) -{ - return i2c_probe(adapter, &addr_data, cs4270_i2c_probe); -} - -static int cs4270_i2c_detach(struct i2c_client *client) -{ - struct snd_soc_codec *codec = i2c_get_clientdata(client); - - i2c_detach_client(client); - codec->control_data = NULL; - - kfree(codec->reg_cache); - codec->reg_cache = NULL; - - kfree(client); - return 0; -} +static int cs4270_i2c_probe(struct i2c_client *, const struct i2c_device_id *); /* A list of non-DAPM controls that the CS4270 supports */ static const struct snd_kcontrol_new cs4270_snd_controls[] = { @@ -525,14 +498,19 @@ static const struct snd_kcontrol_new cs4270_snd_controls[] = { CS4270_VOLA, CS4270_VOLB, 0, 0xFF, 1) }; +static const struct i2c_device_id cs4270_id[] = { + {"cs4270", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, cs4270_id); + static struct i2c_driver cs4270_i2c_driver = { .driver = { .name = "CS4270 I2C", .owner = THIS_MODULE, }, - .id = I2C_DRIVERID_CS4270, - .attach_adapter = cs4270_i2c_attach, - .detach_client = cs4270_i2c_detach, + .id_table = cs4270_id, + .probe = cs4270_i2c_probe, }; /* @@ -561,11 +539,11 @@ static struct snd_soc_device *cs4270_socdev; * Note: snd_soc_new_pcms() must be called before this function can be called, * because of snd_ctl_add(). */ -static int cs4270_i2c_probe(struct i2c_adapter *adapter, int addr, int kind) +static int cs4270_i2c_probe(struct i2c_client *i2c_client, + const struct i2c_device_id *id) { struct snd_soc_device *socdev = cs4270_socdev; struct snd_soc_codec *codec = socdev->codec; - struct i2c_client *i2c_client = NULL; int i; int ret = 0; @@ -578,12 +556,6 @@ static int cs4270_i2c_probe(struct i2c_adapter *adapter, int addr, int kind) /* Note: codec_dai->codec is NULL here */ - i2c_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); - if (!i2c_client) { - printk(KERN_ERR "cs4270: could not allocate I2C client\n"); - return -ENOMEM; - } - codec->reg_cache = kzalloc(CS4270_NUMREGS, GFP_KERNEL); if (!codec->reg_cache) { printk(KERN_ERR "cs4270: could not allocate register cache\n"); @@ -591,13 +563,6 @@ static int cs4270_i2c_probe(struct i2c_adapter *adapter, int addr, int kind) goto error; } - i2c_set_clientdata(i2c_client, codec); - strcpy(i2c_client->name, "CS4270"); - - i2c_client->driver = &cs4270_i2c_driver; - i2c_client->adapter = adapter; - i2c_client->addr = addr; - /* Verify that we have a CS4270 */ ret = i2c_smbus_read_byte_data(i2c_client, CS4270_CHIPID); @@ -612,18 +577,10 @@ static int cs4270_i2c_probe(struct i2c_adapter *adapter, int addr, int kind) goto error; } - printk(KERN_INFO "cs4270: found device at I2C address %X\n", addr); + printk(KERN_INFO "cs4270: found device at I2C address %X\n", + i2c_client->addr); printk(KERN_INFO "cs4270: hardware revision %X\n", ret & 0xF); - /* Tell the I2C layer a new client has arrived */ - - ret = i2c_attach_client(i2c_client); - if (ret) { - printk(KERN_ERR "cs4270: could not attach codec, " - "I2C address %x, error code %i\n", addr, ret); - goto error; - } - codec->control_data = i2c_client; codec->read = cs4270_read_reg_cache; codec->write = cs4270_i2c_write; @@ -648,6 +605,8 @@ static int cs4270_i2c_probe(struct i2c_adapter *adapter, int addr, int kind) goto error; } + i2c_set_clientdata(i2c_client, codec); + return 0; error: |