[alsa-devel] [PATCH] ASoC: Convert wm8580 to a new-style i2c driver
Convert the wm8580 codec driver to the new (standard) device driver binding model.
Signed-off-by: Jean Delvare khali@linux-fr.org Cc: Mark Brown broonie@opensource.wolfsonmicro.com --- Untested, no hardware.
sound/soc/codecs/wm8580.c | 108 ++++++++++++++++++++++----------------------- sound/soc/codecs/wm8580.h | 1 2 files changed, 54 insertions(+), 55 deletions(-)
--- linux-2.6.28-rc0.orig/sound/soc/codecs/wm8580.c 2008-10-15 15:14:34.000000000 +0200 +++ linux-2.6.28-rc0/sound/soc/codecs/wm8580.c 2008-10-15 17:26:13.000000000 +0200 @@ -900,85 +900,85 @@ static struct snd_soc_device *wm8580_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 wm8580_i2c_driver; -static struct i2c_client client_template; - -static int wm8580_codec_probe(struct i2c_adapter *adap, int addr, int kind) +static int wm8580_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { struct snd_soc_device *socdev = wm8580_socdev; - struct wm8580_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 == NULL) { - kfree(codec); - return -ENOMEM; - } i2c_set_clientdata(i2c, codec); codec->control_data = i2c;
- ret = i2c_attach_client(i2c); - if (ret < 0) { - dev_err(&i2c->dev, "failed to attach codec at addr %x\n", addr); - goto err; - } - ret = wm8580_init(socdev); - if (ret < 0) { + if (ret < 0) dev_err(&i2c->dev, "failed to initialise WM8580\n"); - goto err; - } - - return ret; - -err: - kfree(codec); - kfree(i2c); return ret; }
-static int wm8580_i2c_detach(struct i2c_client *client) +static int wm8580_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 wm8580_i2c_attach(struct i2c_adapter *adap) -{ - return i2c_probe(adap, &addr_data, wm8580_codec_probe); -} +static const struct i2c_device_id wm8580_i2c_id[] = { + { "wm8580", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id);
-/* corgi i2c codec control layer */ static struct i2c_driver wm8580_i2c_driver = { .driver = { .name = "WM8580 I2C Codec", .owner = THIS_MODULE, }, - .attach_adapter = wm8580_i2c_attach, - .detach_client = wm8580_i2c_detach, - .command = NULL, + .probe = wm8580_i2c_probe, + .remove = wm8580_i2c_remove, + .id_table = wm8580_i2c_id, };
-static struct i2c_client client_template = { - .name = "WM8580", - .driver = &wm8580_i2c_driver, -}; +static int wm8580_add_i2c_device(struct platform_device *pdev, + const struct wm8580_setup_data *setup) +{ + struct i2c_board_info info; + struct i2c_adapter *adapter; + struct i2c_client *client; + int ret; + + ret = i2c_add_driver(&wm8580_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, "wm8580", 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(&wm8580_i2c_driver); + return -ENODEV; +} #endif
static int wm8580_probe(struct platform_device *pdev) @@ -1011,11 +1011,8 @@ static int wm8580_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(&wm8580_i2c_driver); - if (ret != 0) - printk(KERN_ERR "can't add i2c driver"); + ret = wm8580_add_i2c_device(pdev, setup); } #else /* Add other interfaces here */ @@ -1034,6 +1031,7 @@ static int wm8580_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(&wm8580_i2c_driver); #endif kfree(codec->private_data); --- linux-2.6.28-rc0.orig/sound/soc/codecs/wm8580.h 2008-10-15 15:14:34.000000000 +0200 +++ linux-2.6.28-rc0/sound/soc/codecs/wm8580.h 2008-10-15 17:51:18.000000000 +0200 @@ -29,6 +29,7 @@ #define WM8580_CLKSRC_NONE 5
struct wm8580_setup_data { + int i2c_bus; unsigned short i2c_address; };
On Wed, Oct 15, 2008 at 07:57:12PM +0200, Jean Delvare wrote:
Convert the wm8580 codec driver to the new (standard) device driver binding model.
Signed-off-by: Jean Delvare khali@linux-fr.org Cc: Mark Brown broonie@opensource.wolfsonmicro.com
Acked-by: Mark Brown broonie@opensource.wolfsonmicro.com
At Wed, 15 Oct 2008 19:57:12 +0200, Jean Delvare wrote:
Convert the wm8580 codec driver to the new (standard) device driver binding model.
Signed-off-by: Jean Delvare khali@linux-fr.org Cc: Mark Brown broonie@opensource.wolfsonmicro.com
Thanks, both patches are applied to topic/asoc-next branch now. This won't appear in linux-next yet until rc1 or rc2.
Takashi
Untested, no hardware.
sound/soc/codecs/wm8580.c | 108 ++++++++++++++++++++++----------------------- sound/soc/codecs/wm8580.h | 1 2 files changed, 54 insertions(+), 55 deletions(-)
--- linux-2.6.28-rc0.orig/sound/soc/codecs/wm8580.c 2008-10-15 15:14:34.000000000 +0200 +++ linux-2.6.28-rc0/sound/soc/codecs/wm8580.c 2008-10-15 17:26:13.000000000 +0200 @@ -900,85 +900,85 @@ static struct snd_soc_device *wm8580_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 wm8580_i2c_driver; -static struct i2c_client client_template;
-static int wm8580_codec_probe(struct i2c_adapter *adap, int addr, int kind) +static int wm8580_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{ struct snd_soc_device *socdev = wm8580_socdev;
struct wm8580_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 == NULL) {
kfree(codec);
return -ENOMEM;
} i2c_set_clientdata(i2c, codec); codec->control_data = i2c;
ret = i2c_attach_client(i2c);
if (ret < 0) {
dev_err(&i2c->dev, "failed to attach codec at addr %x\n", addr);
goto err;
}
ret = wm8580_init(socdev);
if (ret < 0) {
- if (ret < 0) dev_err(&i2c->dev, "failed to initialise WM8580\n");
goto err;
- }
- return ret;
-err:
- kfree(codec);
- kfree(i2c); return ret;
}
-static int wm8580_i2c_detach(struct i2c_client *client) +static int wm8580_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 wm8580_i2c_attach(struct i2c_adapter *adap) -{
- return i2c_probe(adap, &addr_data, wm8580_codec_probe);
-} +static const struct i2c_device_id wm8580_i2c_id[] = {
- { "wm8580", 0 },
- { }
+}; +MODULE_DEVICE_TABLE(i2c, wm8580_i2c_id);
-/* corgi i2c codec control layer */ static struct i2c_driver wm8580_i2c_driver = { .driver = { .name = "WM8580 I2C Codec", .owner = THIS_MODULE, },
- .attach_adapter = wm8580_i2c_attach,
- .detach_client = wm8580_i2c_detach,
- .command = NULL,
- .probe = wm8580_i2c_probe,
- .remove = wm8580_i2c_remove,
- .id_table = wm8580_i2c_id,
};
-static struct i2c_client client_template = {
- .name = "WM8580",
- .driver = &wm8580_i2c_driver,
-}; +static int wm8580_add_i2c_device(struct platform_device *pdev,
const struct wm8580_setup_data *setup)
+{
- struct i2c_board_info info;
- struct i2c_adapter *adapter;
- struct i2c_client *client;
- int ret;
- ret = i2c_add_driver(&wm8580_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, "wm8580", 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(&wm8580_i2c_driver);
- return -ENODEV;
+} #endif
static int wm8580_probe(struct platform_device *pdev) @@ -1011,11 +1011,8 @@ static int wm8580_probe(struct platform_
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) if (setup->i2c_address) {
codec->hw_write = (hw_write_t)i2c_master_send;normal_i2c[0] = setup->i2c_address;
ret = i2c_add_driver(&wm8580_i2c_driver);
if (ret != 0)
printk(KERN_ERR "can't add i2c driver");
}ret = wm8580_add_i2c_device(pdev, setup);
#else /* Add other interfaces here */ @@ -1034,6 +1031,7 @@ static int wm8580_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(&wm8580_i2c_driver);
#endif kfree(codec->private_data); --- linux-2.6.28-rc0.orig/sound/soc/codecs/wm8580.h 2008-10-15 15:14:34.000000000 +0200 +++ linux-2.6.28-rc0/sound/soc/codecs/wm8580.h 2008-10-15 17:51:18.000000000 +0200 @@ -29,6 +29,7 @@ #define WM8580_CLKSRC_NONE 5
struct wm8580_setup_data {
- int i2c_bus; unsigned short i2c_address;
};
-- Jean Delvare _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
participants (3)
-
Jean Delvare
-
Mark Brown
-
Takashi Iwai