On Thu, 9 Apr 2009 14:19:45 +0200, Jean Delvare wrote: > From: Jean Delvare <kh...@linux-fr.org> > Subject: 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 <kh...@linux-fr.org> > Cc: Johannes Berg <johan...@sipsolutions.net> > Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> > --- > sound/aoa/codecs/onyx.c | 71 > +++++++++++++++++++++++++++++------------------ > sound/aoa/codecs/tas.c | 63 +++++++++++++++++++++++++---------------- > 2 files changed, 84 insertions(+), 50 deletions(-)
Note to potential testers of this patch: you need to apply this i2c patch first: ftp://ftp.kernel.org/pub/linux/kernel/people/jdelvare/linux-2.6/jdelvare-i2c/i2c-loosen-driver-check.patch > > --- linux-2.6.30-rc1.orig/sound/aoa/codecs/onyx.c 2009-04-09 > 11:53:11.000000000 +0200 > +++ linux-2.6.30-rc1/sound/aoa/codecs/onyx.c 2009-04-09 13:58:44.000000000 > +0200 > @@ -47,7 +47,7 @@ MODULE_DESCRIPTION("pcm3052 (onyx) codec > struct onyx { > /* cache registers 65 to 80, they are write-only! */ > u8 cache[16]; > - struct i2c_client i2c; > + struct i2c_client *i2c; > struct aoa_codec codec; > u32 initialised:1, > spdif_locked:1, > @@ -72,7 +72,7 @@ static int onyx_read_register(struct ony > *value = onyx->cache[reg-FIRSTREGISTER]; > return 0; > } > - v = i2c_smbus_read_byte_data(&onyx->i2c, reg); > + v = i2c_smbus_read_byte_data(onyx->i2c, reg); > if (v < 0) > return -1; > *value = (u8)v; > @@ -84,7 +84,7 @@ static int onyx_write_register(struct on > { > int result; > > - result = i2c_smbus_write_byte_data(&onyx->i2c, reg, value); > + result = i2c_smbus_write_byte_data(onyx->i2c, reg, value); > if (!result) > onyx->cache[reg-FIRSTREGISTER] = value; > return result; > @@ -996,12 +996,38 @@ static void onyx_exit_codec(struct aoa_c > onyx->codec.soundbus_dev->detach_codec(onyx->codec.soundbus_dev, onyx); > } > > -static struct i2c_driver onyx_driver; > - > static int onyx_create(struct i2c_adapter *adapter, > struct device_node *node, > int addr) > { > + struct i2c_board_info info; > + struct i2c_client *client; > + > + memset(&info, 0, sizeof(struct i2c_board_info)); > + strlcpy(info.type, "aoa_codec_onyx", I2C_NAME_SIZE); > + if (node) { > + info.addr = addr; > + info.platform_data = node; > + client = i2c_new_device(adapter, &info); > + } else { > + /* probe both possible addresses for the onyx chip */ > + unsigned short probe_onyx[] = { > + 0x46, 0x47, I2C_CLIENT_END > + }; > + > + client = i2c_new_probed_device(adapter, &info, probe_onyx); > + } > + if (!client) > + return -ENODEV; > + > + list_add_tail(&client->detected, &client->driver->clients); > + return 0; > +} > + > +static int onyx_i2c_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device_node *node = client->dev.platform_data; > struct onyx *onyx; > u8 dummy; > > @@ -1011,20 +1037,12 @@ static int onyx_create(struct i2c_adapte > return -ENOMEM; > > mutex_init(&onyx->mutex); > - onyx->i2c.driver = &onyx_driver; > - onyx->i2c.adapter = adapter; > - onyx->i2c.addr = addr & 0x7f; > - strlcpy(onyx->i2c.name, "onyx audio codec", I2C_NAME_SIZE); > - > - if (i2c_attach_client(&onyx->i2c)) { > - printk(KERN_ERR PFX "failed to attach to i2c\n"); > - goto fail; > - } > + onyx->i2c = client; > + i2c_set_clientdata(client, onyx); > > /* we try to read from register ONYX_REG_CONTROL > * to check if the codec is present */ > if (onyx_read_register(onyx, ONYX_REG_CONTROL, &dummy) != 0) { > - i2c_detach_client(&onyx->i2c); > printk(KERN_ERR PFX "failed to read control register\n"); > goto fail; > } > @@ -1036,7 +1054,6 @@ static int onyx_create(struct i2c_adapte > onyx->codec.node = of_node_get(node); > > if (aoa_codec_register(&onyx->codec)) { > - i2c_detach_client(&onyx->i2c); > goto fail; > } > printk(KERN_DEBUG PFX "created and attached onyx instance\n"); > @@ -1074,19 +1091,13 @@ static int onyx_i2c_attach(struct i2c_ad > return -ENODEV; > > printk(KERN_DEBUG PFX "found k2-i2c, checking if onyx chip is on it\n"); > - /* probe both possible addresses for the onyx chip */ > - if (onyx_create(adapter, NULL, 0x46) == 0) > - return 0; > - return onyx_create(adapter, NULL, 0x47); > + return onyx_create(adapter, NULL, 0); > } > > -static int onyx_i2c_detach(struct i2c_client *client) > +static int onyx_i2c_remove(struct i2c_client *client) > { > - struct onyx *onyx = container_of(client, struct onyx, i2c); > - int err; > + struct onyx *onyx = i2c_get_clientdata(client); > > - if ((err = i2c_detach_client(client))) > - return err; > aoa_codec_unregister(&onyx->codec); > of_node_put(onyx->codec.node); > if (onyx->codec_info) > @@ -1095,13 +1106,21 @@ static int onyx_i2c_detach(struct i2c_cl > return 0; > } > > +static const struct i2c_device_id onyx_i2c_id[] = { > + { "aoa_codec_onyx", 0 }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, onyx_i2c_id); > + > static struct i2c_driver onyx_driver = { > .driver = { > .name = "aoa_codec_onyx", > .owner = THIS_MODULE, > }, > .attach_adapter = onyx_i2c_attach, > - .detach_client = onyx_i2c_detach, > + .probe = onyx_i2c_probe, > + .remove = onyx_i2c_remove, > + .id_table = onyx_i2c_id, > }; > > static int __init onyx_init(void) > --- linux-2.6.30-rc1.orig/sound/aoa/codecs/tas.c 2009-04-09 > 11:53:11.000000000 +0200 > +++ linux-2.6.30-rc1/sound/aoa/codecs/tas.c 2009-04-09 13:58:41.000000000 > +0200 > @@ -82,7 +82,7 @@ MODULE_DESCRIPTION("tas codec driver for > > struct tas { > struct aoa_codec codec; > - struct i2c_client i2c; > + struct i2c_client *i2c; > u32 mute_l:1, mute_r:1 , > controls_created:1 , > drc_enabled:1, > @@ -108,9 +108,9 @@ static struct tas *codec_to_tas(struct a > static inline int tas_write_reg(struct tas *tas, u8 reg, u8 len, u8 *data) > { > if (len == 1) > - return i2c_smbus_write_byte_data(&tas->i2c, reg, *data); > + return i2c_smbus_write_byte_data(tas->i2c, reg, *data); > else > - return i2c_smbus_write_i2c_block_data(&tas->i2c, reg, len, > data); > + return i2c_smbus_write_i2c_block_data(tas->i2c, reg, len, data); > } > > static void tas3004_set_drc(struct tas *tas) > @@ -882,12 +882,30 @@ static void tas_exit_codec(struct aoa_co > } > > > -static struct i2c_driver tas_driver; > - > static int tas_create(struct i2c_adapter *adapter, > struct device_node *node, > int addr) > { > + struct i2c_board_info info; > + struct i2c_client *client; > + > + memset(&info, 0, sizeof(struct i2c_board_info)); > + strlcpy(info.type, "aoa_codec_tas", I2C_NAME_SIZE); > + info.addr = addr; > + info.platform_data = node; > + > + client = i2c_new_device(adapter, &info); > + if (!client) > + return -ENODEV; > + > + list_add_tail(&client->detected, &client->driver->clients); > + return 0; > +} > + > +static int tas_i2c_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device_node *node = client->dev.platform_data; > struct tas *tas; > > tas = kzalloc(sizeof(struct tas), GFP_KERNEL); > @@ -896,17 +914,11 @@ static int tas_create(struct i2c_adapter > return -ENOMEM; > > mutex_init(&tas->mtx); > - tas->i2c.driver = &tas_driver; > - tas->i2c.adapter = adapter; > - tas->i2c.addr = addr; > + tas->i2c = client; > + i2c_set_clientdata(client, tas); > + > /* seems that half is a saner default */ > tas->drc_range = TAS3004_DRC_MAX / 2; > - strlcpy(tas->i2c.name, "tas audio codec", I2C_NAME_SIZE); > - > - if (i2c_attach_client(&tas->i2c)) { > - printk(KERN_ERR PFX "failed to attach to i2c\n"); > - goto fail; > - } > > strlcpy(tas->codec.name, "tas", MAX_CODEC_NAME_LEN); > tas->codec.owner = THIS_MODULE; > @@ -915,14 +927,12 @@ static int tas_create(struct i2c_adapter > tas->codec.node = of_node_get(node); > > if (aoa_codec_register(&tas->codec)) { > - goto detach; > + goto fail; > } > printk(KERN_DEBUG > "snd-aoa-codec-tas: tas found, addr 0x%02x on %s\n", > - addr, node->full_name); > + (unsigned int)client->addr, node->full_name); > return 0; > - detach: > - i2c_detach_client(&tas->i2c); > fail: > mutex_destroy(&tas->mtx); > kfree(tas); > @@ -970,14 +980,11 @@ static int tas_i2c_attach(struct i2c_ada > return -ENODEV; > } > > -static int tas_i2c_detach(struct i2c_client *client) > +static int tas_i2c_remove(struct i2c_client *client) > { > - struct tas *tas = container_of(client, struct tas, i2c); > - int err; > + struct tas *tas = i2c_get_clientdata(client); > u8 tmp = TAS_ACR_ANALOG_PDOWN; > > - if ((err = i2c_detach_client(client))) > - return err; > aoa_codec_unregister(&tas->codec); > of_node_put(tas->codec.node); > > @@ -989,13 +996,21 @@ static int tas_i2c_detach(struct i2c_cli > return 0; > } > > +static const struct i2c_device_id tas_i2c_id[] = { > + { "aoa_codec_tas", 0 }, > + { } > +}; > +MODULE_DEVICE_TABLE(i2c, tas_i2c_id); > + > static struct i2c_driver tas_driver = { > .driver = { > .name = "aoa_codec_tas", > .owner = THIS_MODULE, > }, > .attach_adapter = tas_i2c_attach, > - .detach_client = tas_i2c_detach, > + .probe = tas_i2c_probe, > + .remove = tas_i2c_remove, > + .id_table = tas_i2c_id, > }; > > static int __init tas_init(void) > > -- Jean Delvare _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
