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ALSA: AOA: Convert onyx and tas codecs to new-style i2c drivers
The legacy i2c binding model is going away soon, so convert the AOA codec drivers to the new model or they'll break. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Johannes Berg <johannes@sipsolutions.net> Tested-by: Andreas Schwab <schwab@linux-m68k.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jean Delvare
Takashi Iwai
parent
d91dfbb41b
commit
cfbf1eecd7
2 changed files with 95 additions and 47 deletions
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@ -47,7 +47,7 @@ MODULE_DESCRIPTION("pcm3052 (onyx) codec driver for snd-aoa");
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struct onyx {
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/* cache registers 65 to 80, they are write-only! */
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u8 cache[16];
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struct i2c_client i2c;
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struct i2c_client *i2c;
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struct aoa_codec codec;
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u32 initialised:1,
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spdif_locked:1,
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@ -72,7 +72,7 @@ static int onyx_read_register(struct onyx *onyx, u8 reg, u8 *value)
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*value = onyx->cache[reg-FIRSTREGISTER];
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return 0;
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}
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v = i2c_smbus_read_byte_data(&onyx->i2c, reg);
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v = i2c_smbus_read_byte_data(onyx->i2c, reg);
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if (v < 0)
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return -1;
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*value = (u8)v;
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@ -84,7 +84,7 @@ static int onyx_write_register(struct onyx *onyx, u8 reg, u8 value)
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{
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int result;
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result = i2c_smbus_write_byte_data(&onyx->i2c, reg, value);
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result = i2c_smbus_write_byte_data(onyx->i2c, reg, value);
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if (!result)
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onyx->cache[reg-FIRSTREGISTER] = value;
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return result;
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@ -996,12 +996,45 @@ static void onyx_exit_codec(struct aoa_codec *codec)
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onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx);
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}
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static struct i2c_driver onyx_driver;
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static int onyx_create(struct i2c_adapter *adapter,
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struct device_node *node,
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int addr)
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{
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struct i2c_board_info info;
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struct i2c_client *client;
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memset(&info, 0, sizeof(struct i2c_board_info));
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strlcpy(info.type, "aoa_codec_onyx", I2C_NAME_SIZE);
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info.addr = addr;
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info.platform_data = node;
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client = i2c_new_device(adapter, &info);
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if (!client)
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return -ENODEV;
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/*
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* We know the driver is already loaded, so the device should be
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* already bound. If not it means binding failed, which suggests
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* the device doesn't really exist and should be deleted.
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* Ideally this would be replaced by better checks _before_
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* instantiating the device.
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*/
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if (!client->driver) {
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i2c_unregister_device(client);
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return -ENODEV;
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}
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/*
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* Let i2c-core delete that device on driver removal.
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* This is safe because i2c-core holds the core_lock mutex for us.
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*/
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list_add_tail(&client->detected, &client->driver->clients);
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return 0;
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}
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static int onyx_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct device_node *node = client->dev.platform_data;
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struct onyx *onyx;
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u8 dummy;
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@ -1011,20 +1044,12 @@ static int onyx_create(struct i2c_adapter *adapter,
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return -ENOMEM;
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mutex_init(&onyx->mutex);
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onyx->i2c.driver = &onyx_driver;
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onyx->i2c.adapter = adapter;
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onyx->i2c.addr = addr & 0x7f;
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strlcpy(onyx->i2c.name, "onyx audio codec", I2C_NAME_SIZE);
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if (i2c_attach_client(&onyx->i2c)) {
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printk(KERN_ERR PFX "failed to attach to i2c\n");
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goto fail;
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}
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onyx->i2c = client;
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i2c_set_clientdata(client, onyx);
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/* we try to read from register ONYX_REG_CONTROL
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* to check if the codec is present */
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if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) {
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i2c_detach_client(&onyx->i2c);
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printk(KERN_ERR PFX "failed to read control register\n");
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goto fail;
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}
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@ -1036,14 +1061,14 @@ static int onyx_create(struct i2c_adapter *adapter,
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onyx->codec.node = of_node_get(node);
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if (aoa_codec_register(&onyx->codec)) {
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i2c_detach_client(&onyx->i2c);
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goto fail;
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}
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printk(KERN_DEBUG PFX "created and attached onyx instance\n");
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return 0;
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fail:
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i2c_set_clientdata(client, NULL);
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kfree(onyx);
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return -EINVAL;
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return -ENODEV;
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}
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static int onyx_i2c_attach(struct i2c_adapter *adapter)
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@ -1080,28 +1105,33 @@ static int onyx_i2c_attach(struct i2c_adapter *adapter)
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return onyx_create(adapter, NULL, 0x47);
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}
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static int onyx_i2c_detach(struct i2c_client *client)
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static int onyx_i2c_remove(struct i2c_client *client)
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{
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struct onyx *onyx = container_of(client, struct onyx, i2c);
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int err;
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struct onyx *onyx = i2c_get_clientdata(client);
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if ((err = i2c_detach_client(client)))
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return err;
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aoa_codec_unregister(&onyx->codec);
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of_node_put(onyx->codec.node);
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if (onyx->codec_info)
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kfree(onyx->codec_info);
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i2c_set_clientdata(client, onyx);
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kfree(onyx);
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return 0;
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}
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static const struct i2c_device_id onyx_i2c_id[] = {
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{ "aoa_codec_onyx", 0 },
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{ }
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};
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static struct i2c_driver onyx_driver = {
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.driver = {
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.name = "aoa_codec_onyx",
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.owner = THIS_MODULE,
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},
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.attach_adapter = onyx_i2c_attach,
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.detach_client = onyx_i2c_detach,
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.probe = onyx_i2c_probe,
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.remove = onyx_i2c_remove,
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.id_table = onyx_i2c_id,
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};
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static int __init onyx_init(void)
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@ -82,7 +82,7 @@ MODULE_DESCRIPTION("tas codec driver for snd-aoa");
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struct tas {
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struct aoa_codec codec;
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struct i2c_client i2c;
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struct i2c_client *i2c;
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u32 mute_l:1, mute_r:1 ,
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controls_created:1 ,
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drc_enabled:1,
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@ -108,9 +108,9 @@ static struct tas *codec_to_tas(struct aoa_codec *codec)
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static inline int tas_write_reg(struct tas *tas, u8 reg, u8 len, u8 *data)
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{
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if (len == 1)
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return i2c_smbus_write_byte_data(&tas->i2c, reg, *data);
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return i2c_smbus_write_byte_data(tas->i2c, reg, *data);
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else
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return i2c_smbus_write_i2c_block_data(&tas->i2c, reg, len, data);
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return i2c_smbus_write_i2c_block_data(tas->i2c, reg, len, data);
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}
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static void tas3004_set_drc(struct tas *tas)
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@ -882,12 +882,34 @@ static void tas_exit_codec(struct aoa_codec *codec)
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}
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static struct i2c_driver tas_driver;
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static int tas_create(struct i2c_adapter *adapter,
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struct device_node *node,
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int addr)
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{
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struct i2c_board_info info;
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struct i2c_client *client;
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memset(&info, 0, sizeof(struct i2c_board_info));
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strlcpy(info.type, "aoa_codec_tas", I2C_NAME_SIZE);
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info.addr = addr;
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info.platform_data = node;
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client = i2c_new_device(adapter, &info);
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if (!client)
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return -ENODEV;
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/*
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* Let i2c-core delete that device on driver removal.
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* This is safe because i2c-core holds the core_lock mutex for us.
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*/
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list_add_tail(&client->detected, &client->driver->clients);
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return 0;
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}
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static int tas_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct device_node *node = client->dev.platform_data;
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struct tas *tas;
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tas = kzalloc(sizeof(struct tas), GFP_KERNEL);
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@ -896,17 +918,11 @@ static int tas_create(struct i2c_adapter *adapter,
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return -ENOMEM;
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mutex_init(&tas->mtx);
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tas->i2c.driver = &tas_driver;
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tas->i2c.adapter = adapter;
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tas->i2c.addr = addr;
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tas->i2c = client;
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i2c_set_clientdata(client, tas);
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/* seems that half is a saner default */
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tas->drc_range = TAS3004_DRC_MAX / 2;
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strlcpy(tas->i2c.name, "tas audio codec", I2C_NAME_SIZE);
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if (i2c_attach_client(&tas->i2c)) {
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printk(KERN_ERR PFX "failed to attach to i2c\n");
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goto fail;
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}
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strlcpy(tas->codec.name, "tas", MAX_CODEC_NAME_LEN);
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tas->codec.owner = THIS_MODULE;
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@ -915,14 +931,12 @@ static int tas_create(struct i2c_adapter *adapter,
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tas->codec.node = of_node_get(node);
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if (aoa_codec_register(&tas->codec)) {
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goto detach;
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goto fail;
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}
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printk(KERN_DEBUG
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"snd-aoa-codec-tas: tas found, addr 0x%02x on %s\n",
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addr, node->full_name);
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(unsigned int)client->addr, node->full_name);
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return 0;
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detach:
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i2c_detach_client(&tas->i2c);
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fail:
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mutex_destroy(&tas->mtx);
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kfree(tas);
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@ -970,14 +984,11 @@ static int tas_i2c_attach(struct i2c_adapter *adapter)
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return -ENODEV;
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}
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static int tas_i2c_detach(struct i2c_client *client)
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static int tas_i2c_remove(struct i2c_client *client)
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{
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struct tas *tas = container_of(client, struct tas, i2c);
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int err;
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struct tas *tas = i2c_get_clientdata(client);
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u8 tmp = TAS_ACR_ANALOG_PDOWN;
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if ((err = i2c_detach_client(client)))
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return err;
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aoa_codec_unregister(&tas->codec);
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of_node_put(tas->codec.node);
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@ -989,13 +1000,20 @@ static int tas_i2c_detach(struct i2c_client *client)
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return 0;
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}
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static const struct i2c_device_id tas_i2c_id[] = {
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{ "aoa_codec_tas", 0 },
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{ }
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};
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static struct i2c_driver tas_driver = {
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.driver = {
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.name = "aoa_codec_tas",
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.owner = THIS_MODULE,
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},
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.attach_adapter = tas_i2c_attach,
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.detach_client = tas_i2c_detach,
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.probe = tas_i2c_probe,
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.remove = tas_i2c_remove,
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.id_table = tas_i2c_id,
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};
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static int __init tas_init(void)
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