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V4L/DVB (6458): cs53l23a: convert to bus-based I2C API

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Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-09-13 11:30:38 -03:00 • committed by Mauro Carvalho Chehab
parent 79518dafd5
commit e8e6b99184
1 changed files with 9 additions and 61 deletions
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68
drivers/media/video/cs53l32a.c
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@ -29,6 +29,7 @@
#include <linux/videodev.h> #include <linux/videodev.h>
#include <media/v4l2-common.h> #include <media/v4l2-common.h>
#include <media/v4l2-chip-ident.h> #include <media/v4l2-chip-ident.h>
#include <media/v4l2-i2c-drv-legacy.h>
MODULE_DESCRIPTION("i2c device driver for cs53l32a Audio ADC"); MODULE_DESCRIPTION("i2c device driver for cs53l32a Audio ADC");
MODULE_AUTHOR("Martin Vaughan"); MODULE_AUTHOR("Martin Vaughan");
@ -57,8 +58,7 @@ static int cs53l32a_read(struct i2c_client *client, u8 reg)
return i2c_smbus_read_byte_data(client, reg); return i2c_smbus_read_byte_data(client, reg);
} }
static int cs53l32a_command(struct i2c_client *client, unsigned int cmd, static int cs53l32a_command(struct i2c_client *client, unsigned int cmd, void *arg)
void *arg)
{ {
struct v4l2_routing *route = arg; struct v4l2_routing *route = arg;
struct v4l2_control *ctrl = arg; struct v4l2_control *ctrl = arg;
@ -134,27 +134,17 @@ static int cs53l32a_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 cs53l32a_probe(struct i2c_client *client)
static int cs53l32a_attach(struct i2c_adapter *adapter, int address, int kind)
{ {
struct i2c_client *client;
int i; int i;
/* 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);
if (client == 0)
return -ENOMEM;
client->addr = address;
client->adapter = adapter;
client->driver = &i2c_driver;
snprintf(client->name, sizeof(client->name) - 1, "cs53l32a"); snprintf(client->name, sizeof(client->name) - 1, "cs53l32a");
v4l_info(client, "chip found @ 0x%x (%s)\n", address << 1, adapter->name); v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name);
for (i = 1; i <= 7; i++) { for (i = 1; i <= 7; i++) {
u8 v = cs53l32a_read(client, i); u8 v = cs53l32a_read(client, i);
@ -179,55 +169,13 @@ static int cs53l32a_attach(struct i2c_adapter *adapter, int address, int kind)
v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v); v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
} }
i2c_attach_client(client);
return 0; return 0;
} }
static int cs53l32a_probe(struct i2c_adapter *adapter) static struct v4l2_i2c_driver_data v4l2_i2c_data = {
{
if (adapter->class & I2C_CLASS_TV_ANALOG)
return i2c_probe(adapter, &addr_data, cs53l32a_attach);
return 0;
}
static int cs53l32a_detach(struct i2c_client *client)
{
int err;
err = i2c_detach_client(client);
if (err) {
return err;
}
kfree(client);
return 0;
}
/* ----------------------------------------------------------------------- */
/* i2c implementation */
static struct i2c_driver i2c_driver = {
.driver = {
.name = "cs53l32a", .name = "cs53l32a",
}, .driverid = I2C_DRIVERID_CS53L32A,
.id = I2C_DRIVERID_CS53L32A,
.attach_adapter = cs53l32a_probe,
.detach_client = cs53l32a_detach,
.command = cs53l32a_command, .command = cs53l32a_command,
.probe = cs53l32a_probe,
}; };
static int __init cs53l32a_init_module(void)
{
return i2c_add_driver(&i2c_driver);
}
static void __exit cs53l32a_cleanup_module(void)
{
i2c_del_driver(&i2c_driver);
}
module_init(cs53l32a_init_module);
module_exit(cs53l32a_cleanup_module);