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ALSA: ppc: keywest: drop using attach adapter

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As we now have deferred probing, we can use a custom mechanism and
finally get rid of this legacy interface from the i2c core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Tested-by: Dan DeVoto <dand1972@yahoo.com>
Tested-by: Mark Elliott <txlitebeer@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Wolfram Sang 2015-05-09 19:42:22 +02:00 committed by Takashi Iwai
parent 108c5df14a
commit ac397c80de
1 changed files with 19 additions and 4 deletions
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23
sound/ppc/keywest.c
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@ -52,7 +52,7 @@ static int keywest_attach_adapter(struct i2c_adapter *adapter)
return -EINVAL;
if (strncmp(adapter->name, "mac-io", 6))
return 0; /* ignored */
return -EINVAL; /* ignored */
memset(&info, 0, sizeof(struct i2c_board_info));
strlcpy(info.type, "keywest", I2C_NAME_SIZE);
@ -100,7 +100,6 @@ static 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,
@ -132,16 +131,32 @@ int snd_pmac_tumbler_post_init(void)
/* exported */
int snd_pmac_keywest_init(struct pmac_keywest *i2c)
{
int err;
struct i2c_adapter *adap;
int err, i = 0;
if (keywest_ctx)
return -EBUSY;
adap = i2c_get_adapter(0);
if (!adap)
return -EPROBE_DEFER;
keywest_ctx = i2c;
if ((err = i2c_add_driver(&keywest_driver))) {
snd_printk(KERN_ERR "cannot register keywest i2c driver\n");
i2c_put_adapter(adap);
return err;
}
return 0;
/* We assume Macs have consecutive I2C bus numbers starting at 0 */
while (adap) {
err = keywest_attach_adapter(adap);
if (!err)
return 0;
i2c_put_adapter(adap);
adap = i2c_get_adapter(++i);
}
return -ENODEV;
}