Convert the wm8753 codec driver to the new (standard) i2c device driver binding model.
Signed-off-by: Jean Delvare khali@linux-fr.org Cc: Ville Syrjala syrjala@sci.fi Cc: Frank Mandarino fmandarino@endrelia.com Cc: Mark Brown broonie@opensource.wolfsonmicro.com --- Warning: this assumes that the neo1973 has its codec chip on I2C bus 0, which may or may not be the case. Someone with this machine please test and report.
include/linux/i2c-id.h | 1 sound/soc/codecs/wm8753.c | 106 ++++++++++++++++++------------------ sound/soc/codecs/wm8753.h | 1 sound/soc/s3c24xx/neo1973_wm8753.c | 1 4 files changed, 55 insertions(+), 54 deletions(-)
--- linux-2.6.27-rc5.orig/include/linux/i2c-id.h 2008-09-01 11:06:04.000000000 +0200 +++ linux-2.6.27-rc5/include/linux/i2c-id.h 2008-09-01 12:46:57.000000000 +0200 @@ -64,7 +64,6 @@ #define I2C_DRIVERID_SAA717X 80 /* saa717x video encoder */ #define I2C_DRIVERID_DS1672 81 /* Dallas/Maxim DS1672 RTC */ #define I2C_DRIVERID_TLV320AIC23B 87 /* TI TLV320AIC23B audio codec */ -#define I2C_DRIVERID_WM8753 91 /* Wolfson WM8753 audio codec */ #define I2C_DRIVERID_LM4857 92 /* LM4857 Audio Amplifier */ #define I2C_DRIVERID_VP27SMPX 93 /* Panasonic VP27s tuner internal MPX */ #define I2C_DRIVERID_CS4270 94 /* Cirrus Logic 4270 audio codec */ --- linux-2.6.27-rc5.orig/sound/soc/codecs/wm8753.c 2008-08-29 09:32:25.000000000 +0200 +++ linux-2.6.27-rc5/sound/soc/codecs/wm8753.c 2008-09-01 12:49:46.000000000 +0200 @@ -1637,84 +1637,86 @@ static struct snd_soc_device *wm8753_soc * low = 0x1a * high = 0x1b */ -static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
-/* Magic definition of all other variables and things */ -I2C_CLIENT_INSMOD; - -static struct i2c_driver wm8753_i2c_driver; -static struct i2c_client client_template; - -static int wm8753_codec_probe(struct i2c_adapter *adap, int addr, int kind) +static int wm8753_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { struct snd_soc_device *socdev = wm8753_socdev; - struct wm8753_setup_data *setup = socdev->codec_data; struct snd_soc_codec *codec = socdev->codec; - struct i2c_client *i2c; int ret;
- if (addr != setup->i2c_address) - return -ENODEV; - - client_template.adapter = adap; - client_template.addr = addr; - - i2c = kmemdup(&client_template, sizeof(client_template), GFP_KERNEL); - if (!i2c) - return -ENOMEM; - i2c_set_clientdata(i2c, codec); codec->control_data = i2c;
- ret = i2c_attach_client(i2c); - if (ret < 0) { - pr_err("failed to attach codec at addr %x\n", addr); - goto err; - } - ret = wm8753_init(socdev); - if (ret < 0) { + if (ret < 0) pr_err("failed to initialise WM8753\n"); - goto err; - } - - return ret;
-err: - kfree(i2c); return ret; }
-static int wm8753_i2c_detach(struct i2c_client *client) +static int wm8753_i2c_remove(struct i2c_client *client) { struct snd_soc_codec *codec = i2c_get_clientdata(client); - i2c_detach_client(client); kfree(codec->reg_cache); - kfree(client); return 0; }
-static int wm8753_i2c_attach(struct i2c_adapter *adap) -{ - return i2c_probe(adap, &addr_data, wm8753_codec_probe); -} +static const struct i2c_device_id wm8753_i2c_id[] = { + { "wm8753", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
-/* corgi i2c codec control layer */ static struct i2c_driver wm8753_i2c_driver = { .driver = { .name = "WM8753 I2C Codec", .owner = THIS_MODULE, }, - .id = I2C_DRIVERID_WM8753, - .attach_adapter = wm8753_i2c_attach, - .detach_client = wm8753_i2c_detach, - .command = NULL, + .probe = wm8753_i2c_probe, + .remove = wm8753_i2c_remove, + .id_table = wm8753_i2c_id, };
-static struct i2c_client client_template = { - .name = "WM8753", - .driver = &wm8753_i2c_driver, -}; +static int wm8753_add_i2c_device(struct platform_device *pdev, + const struct wm8753_setup_data *setup) +{ + struct i2c_board_info info; + struct i2c_adapter *adapter; + struct i2c_client *client; + int ret; + + ret = i2c_add_driver(&wm8753_i2c_driver); + if (ret != 0) { + dev_err(&pdev->dev, "can't add i2c driver\n"); + return ret; + } + + memset(&info, 0, sizeof(struct i2c_board_info)); + info.addr = setup->i2c_address; + strlcpy(info.type, "wm8753", I2C_NAME_SIZE); + + adapter = i2c_get_adapter(setup->i2c_bus); + if (!adapter) { + dev_err(&pdev->dev, "can't get i2c adapter %d\n", + setup->i2c_bus); + goto err_driver; + } + + client = i2c_new_device(adapter, &info); + i2c_put_adapter(adapter); + if (!client) { + dev_err(&pdev->dev, "can't add i2c device at 0x%x\n", + (unsigned int)info.addr); + goto err_driver; + } + + return 0; + +err_driver: + i2c_del_driver(&wm8753_i2c_driver); + return -ENODEV; +} #endif
static int wm8753_probe(struct platform_device *pdev) @@ -1748,11 +1750,8 @@ static int wm8753_probe(struct platform_
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) if (setup->i2c_address) { - normal_i2c[0] = setup->i2c_address; codec->hw_write = (hw_write_t)i2c_master_send; - ret = i2c_add_driver(&wm8753_i2c_driver); - if (ret != 0) - printk(KERN_ERR "can't add i2c driver"); + ret = wm8753_add_i2c_device(pdev, setup); } #else /* Add other interfaces here */ @@ -1796,6 +1795,7 @@ static int wm8753_remove(struct platform snd_soc_free_pcms(socdev); snd_soc_dapm_free(socdev); #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) + i2c_unregister_device(codec->control_data); i2c_del_driver(&wm8753_i2c_driver); #endif kfree(codec->private_data); --- linux-2.6.27-rc5.orig/sound/soc/codecs/wm8753.h 2008-08-05 18:18:18.000000000 +0200 +++ linux-2.6.27-rc5/sound/soc/codecs/wm8753.h 2008-09-01 12:44:52.000000000 +0200 @@ -79,6 +79,7 @@ #define WM8753_ADCTL2 0x3f
struct wm8753_setup_data { + int i2c_bus; unsigned short i2c_address; };
--- linux-2.6.27-rc5.orig/sound/soc/s3c24xx/neo1973_wm8753.c 2008-08-23 22:18:36.000000000 +0200 +++ linux-2.6.27-rc5/sound/soc/s3c24xx/neo1973_wm8753.c 2008-09-01 12:45:10.000000000 +0200 @@ -586,6 +586,7 @@ static struct snd_soc_machine neo1973 = };
static struct wm8753_setup_data neo1973_wm8753_setup = { + .i2c_bus = 0, .i2c_address = 0x1a, };