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ALSA: keywest: Convert to new-style i2c driver 

The legacy i2c binding model is going away soon, so convert the ppc
keywest sound driver to the new model or it will break.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jean Delvare 2009-04-20 22:56:59 +02:00 committed by Takashi Iwai
parent cfbf1eecd7
commit 5de4155bb3
1 changed files with 41 additions and 41 deletions
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82
sound/ppc/keywest.c
View File

@ -33,26 +33,25 @@
static struct pmac_keywest *keywest_ctx;
static int keywest_attach_adapter(struct i2c_adapter *adapter);
static int keywest_detach_client(struct i2c_client *client);
struct i2c_driver keywest_driver = {
.driver = {
.name = "PMac Keywest Audio",
},
.attach_adapter = &keywest_attach_adapter,
.detach_client = &keywest_detach_client,
};
#ifndef i2c_device_name
#define i2c_device_name(x) ((x)->name)
#endif
static int keywest_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
i2c_set_clientdata(client, keywest_ctx);
return 0;
}
/*
* This is kind of a hack, best would be to turn powermac to fixed i2c
* bus numbers and declare the sound device as part of platform
* initialization
*/
static int keywest_attach_adapter(struct i2c_adapter *adapter)
{
int err;
struct i2c_client *new_client;
struct i2c_board_info info;
if (! keywest_ctx)
return -EINVAL;
@ -60,46 +59,47 @@ static int keywest_attach_adapter(struct i2c_adapter *adapter)
if (strncmp(i2c_device_name(adapter), "mac-io", 6))
return 0; /* ignored */
new_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
if (! new_client)
return -ENOMEM;
new_client->addr = keywest_ctx->addr;
i2c_set_clientdata(new_client, keywest_ctx);
new_client->adapter = adapter;
new_client->driver = &keywest_driver;
new_client->flags = 0;
strcpy(i2c_device_name(new_client), keywest_ctx->name);
keywest_ctx->client = new_client;
/* Tell the i2c layer a new client has arrived */
if (i2c_attach_client(new_client)) {
snd_printk(KERN_ERR "tumbler: cannot attach i2c client\n");
err = -ENODEV;
goto __err;
}
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, "keywest", I2C_NAME_SIZE);
info.addr = keywest_ctx->addr;
keywest_ctx->client = i2c_new_device(adapter, &info);
/*
* Let i2c-core delete that device on driver removal.
* This is safe because i2c-core holds the core_lock mutex for us.
*/
list_add_tail(&keywest_ctx->client->detected,
&keywest_ctx->client->driver->clients);
return 0;
__err:
kfree(new_client);
keywest_ctx->client = NULL;
return err;
}
static int keywest_detach_client(struct i2c_client *client)
static int keywest_remove(struct i2c_client *client)
{
i2c_set_clientdata(client, NULL);
if (! keywest_ctx)
return 0;
if (client == keywest_ctx->client)
keywest_ctx->client = NULL;
i2c_detach_client(client);
kfree(client);
return 0;
}
static const struct i2c_device_id keywest_i2c_id[] = {
{ "keywest", 0 },
{ }
};
struct i2c_driver keywest_driver = {
.driver = {
.name = "PMac Keywest Audio",
},
.attach_adapter = keywest_attach_adapter,
.probe = keywest_probe,
.remove = keywest_remove,
.id_table = keywest_i2c_id,
};
/* exported */
void snd_pmac_keywest_cleanup(struct pmac_keywest *i2c)
{