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V4L/DVB (6464): tlv320aic23b: convert to bus-based I2C API 

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-09-14 05:03:17 -03:00 committed by Mauro Carvalho Chehab
parent 2b14e03146
commit 6235168db8
1 changed files with 13 additions and 58 deletions
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71
drivers/media/video/tlv320aic23b.c
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@ -31,6 +31,7 @@
#include <linux/i2c-id.h> #include <linux/i2c-id.h>
#include <linux/videodev.h> #include <linux/videodev.h>
#include <media/v4l2-common.h> #include <media/v4l2-common.h>
#include <media/v4l2-i2c-drv-legacy.h>
MODULE_DESCRIPTION("tlv320aic23b driver"); MODULE_DESCRIPTION("tlv320aic23b driver");
MODULE_AUTHOR("Scott Alfter, Ulf Eklund, Hans Verkuil"); MODULE_AUTHOR("Scott Alfter, Ulf Eklund, Hans Verkuil");
@ -126,31 +127,18 @@ static int tlv320aic23b_command(struct i2c_client *client, unsigned int cmd,
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1' * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
*/ */
static struct i2c_driver i2c_driver; static int tlv320aic23b_probe(struct i2c_client *client)
static int tlv320aic23b_attach(struct i2c_adapter *adapter, int address, int kind)
{ {
struct i2c_client *client;
struct tlv320aic23b_state *state; struct tlv320aic23b_state *state;
/* Check if the adapter supports the needed features */ /* Check if the adapter supports the needed features */
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return 0; return 0;
client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL); v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name);
if (client == 0)
return -ENOMEM;
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver;
snprintf(client->name, sizeof(client->name) - 1, "tlv320aic23b");
v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name);
state = kmalloc(sizeof(struct tlv320aic23b_state), GFP_KERNEL); state = kmalloc(sizeof(struct tlv320aic23b_state), GFP_KERNEL);
if (state == NULL) { if (state == NULL) {
kfree(client);
return -ENOMEM; return -ENOMEM;
} }
state->muted = 0; state->muted = 0;
@ -163,55 +151,22 @@ static int tlv320aic23b_attach(struct i2c_adapter *adapter, int address, int kin
tlv320aic23b_write(client, 0, 0x119); /* set gain on both channels to +3.0 dB */ tlv320aic23b_write(client, 0, 0x119); /* set gain on both channels to +3.0 dB */
tlv320aic23b_write(client, 8, 0x000); /* set sample rate to 48 kHz */ tlv320aic23b_write(client, 8, 0x000); /* set sample rate to 48 kHz */
tlv320aic23b_write(client, 9, 0x001); /* activate digital interface */ tlv320aic23b_write(client, 9, 0x001); /* activate digital interface */
i2c_attach_client(client);
return 0; return 0;
} }
static int tlv320aic23b_probe(struct i2c_adapter *adapter) static int tlv320aic23b_remove(struct i2c_client *client)
{ {
if (adapter->class & I2C_CLASS_TV_ANALOG) kfree(i2c_get_clientdata(client));
return i2c_probe(adapter, &addr_data, tlv320aic23b_attach);
return 0;
}
static int tlv320aic23b_detach(struct i2c_client *client)
{
int err;
err = i2c_detach_client(client);
if (err) {
return err;
}
kfree(client);
return 0; return 0;
} }
/* ----------------------------------------------------------------------- */ /* ----------------------------------------------------------------------- */
/* i2c implementation */
static struct i2c_driver i2c_driver = { static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.driver = { .name = "tlv320aic23b",
.name = "tlv320aic23b", .driverid = I2C_DRIVERID_TLV320AIC23B,
}, .command = tlv320aic23b_command,
.id = I2C_DRIVERID_TLV320AIC23B, .probe = tlv320aic23b_probe,
.attach_adapter = tlv320aic23b_probe, .remove = tlv320aic23b_remove,
.detach_client = tlv320aic23b_detach,
.command = tlv320aic23b_command,
}; };
static int __init tlv320aic23b_init_module(void)
{
return i2c_add_driver(&i2c_driver);
}
static void __exit tlv320aic23b_cleanup_module(void)
{
i2c_del_driver(&i2c_driver);
}
module_init(tlv320aic23b_init_module);
module_exit(tlv320aic23b_cleanup_module);