diff options
Diffstat (limited to 'sound/soc/codecs/wm8741.c')
-rw-r--r-- | sound/soc/codecs/wm8741.c | 201 |
1 files changed, 54 insertions, 147 deletions
diff --git a/sound/soc/codecs/wm8741.c b/sound/soc/codecs/wm8741.c index b9ea8904ad4..782fe539662 100644 --- a/sound/soc/codecs/wm8741.c +++ b/sound/soc/codecs/wm8741.c @@ -30,9 +30,6 @@ #include "wm8741.h" -static struct snd_soc_codec *wm8741_codec; -struct snd_soc_codec_device soc_codec_dev_wm8741; - #define WM8741_NUM_SUPPLIES 2 static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { "AVDD", @@ -43,7 +40,7 @@ static const char *wm8741_supply_names[WM8741_NUM_SUPPLIES] = { /* codec private data */ struct wm8741_priv { - struct snd_soc_codec codec; + enum snd_soc_control_type control_type; u16 reg_cache[WM8741_REGISTER_COUNT]; struct regulator_bulk_data supplies[WM8741_NUM_SUPPLIES]; unsigned int sysclk; @@ -145,8 +142,7 @@ static int wm8741_hw_params(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_device *socdev = rtd->socdev; - struct snd_soc_codec *codec = socdev->card->codec; + struct snd_soc_codec *codec = rtd->codec; struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); u16 iface = snd_soc_read(codec, WM8741_FORMAT_CONTROL) & 0x1FC; int i; @@ -314,7 +310,7 @@ static struct snd_soc_dai_ops wm8741_dai_ops = { .set_fmt = wm8741_set_dai_fmt, }; -struct snd_soc_dai wm8741_dai = { +static struct snd_soc_dai_driver wm8741_dai = { .name = "WM8741", .playback = { .stream_name = "Playback", @@ -325,13 +321,10 @@ struct snd_soc_dai wm8741_dai = { }, .ops = &wm8741_dai_ops, }; -EXPORT_SYMBOL_GPL(wm8741_dai); #ifdef CONFIG_PM -static int wm8741_resume(struct platform_device *pdev) +static int wm8741_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; u16 *cache = codec->reg_cache; int i; @@ -348,189 +341,103 @@ static int wm8741_resume(struct platform_device *pdev) #define wm8741_resume NULL #endif -static int wm8741_probe(struct platform_device *pdev) +static int wm8741_probe(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; + struct wm8741_priv *wm8741 = snd_soc_codec_get_drvdata(codec); int ret = 0; - if (wm8741_codec == NULL) { - dev_err(&pdev->dev, "Codec device not registered\n"); - return -ENODEV; + ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8741->control_type); + if (ret != 0) { + dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); + return ret; } - socdev->card->codec = wm8741_codec; - codec = wm8741_codec; - - /* register pcms */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); + ret = wm8741_reset(codec); if (ret < 0) { - dev_err(codec->dev, "failed to create pcms: %d\n", ret); - goto pcm_err; + dev_err(codec->dev, "Failed to issue reset\n"); + return ret; } + /* Change some default settings - latch VU */ + wm8741->reg_cache[WM8741_DACLLSB_ATTENUATION] |= WM8741_UPDATELL; + wm8741->reg_cache[WM8741_DACLMSB_ATTENUATION] |= WM8741_UPDATELM; + wm8741->reg_cache[WM8741_DACRLSB_ATTENUATION] |= WM8741_UPDATERL; + wm8741->reg_cache[WM8741_DACRLSB_ATTENUATION] |= WM8741_UPDATERM; + snd_soc_add_controls(codec, wm8741_snd_controls, ARRAY_SIZE(wm8741_snd_controls)); wm8741_add_widgets(codec); + dev_dbg(codec->dev, "Successful registration\n"); return ret; - -pcm_err: - return ret; -} - -static int wm8741_remove(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - - snd_soc_free_pcms(socdev); - snd_soc_dapm_free(socdev); - - return 0; } -struct snd_soc_codec_device soc_codec_dev_wm8741 = { +static struct snd_soc_codec_driver soc_codec_dev_wm8741 = { .probe = wm8741_probe, - .remove = wm8741_remove, .resume = wm8741_resume, + .reg_cache_size = sizeof(wm8741_reg_defaults), + .reg_word_size = sizeof(u16), + .reg_cache_default = &wm8741_reg_defaults, }; -EXPORT_SYMBOL_GPL(soc_codec_dev_wm8741); -static int wm8741_register(struct wm8741_priv *wm8741, - enum snd_soc_control_type control) +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +static int wm8741_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { - int ret; - struct snd_soc_codec *codec = &wm8741->codec; - int i; - - if (wm8741_codec) { - dev_err(codec->dev, "Another WM8741 is registered\n"); - return -EINVAL; - } - - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); + struct wm8741_priv *wm8741; + int ret, i; - snd_soc_codec_set_drvdata(codec, wm8741); - codec->name = "WM8741"; - codec->owner = THIS_MODULE; - codec->bias_level = SND_SOC_BIAS_OFF; - codec->set_bias_level = NULL; - codec->dai = &wm8741_dai; - codec->num_dai = 1; - codec->reg_cache_size = WM8741_REGISTER_COUNT; - codec->reg_cache = &wm8741->reg_cache; + wm8741 = kzalloc(sizeof(struct wm8741_priv), GFP_KERNEL); + if (wm8741 == NULL) + return -ENOMEM; wm8741->rate_constraint.list = &wm8741->rate_constraint_list[0]; wm8741->rate_constraint.count = ARRAY_SIZE(wm8741->rate_constraint_list); - memcpy(codec->reg_cache, wm8741_reg_defaults, - sizeof(wm8741->reg_cache)); - - ret = snd_soc_codec_set_cache_io(codec, 7, 9, control); - if (ret != 0) { - dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - goto err; - } - for (i = 0; i < ARRAY_SIZE(wm8741->supplies); i++) wm8741->supplies[i].supply = wm8741_supply_names[i]; - ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8741->supplies), + ret = regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8741->supplies), wm8741->supplies); if (ret != 0) { - dev_err(codec->dev, "Failed to request supplies: %d\n", ret); + dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); goto err; } ret = regulator_bulk_enable(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); if (ret != 0) { - dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); + dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); goto err_get; } - ret = wm8741_reset(codec); - if (ret < 0) { - dev_err(codec->dev, "Failed to issue reset\n"); - goto err_enable; - } - - wm8741_dai.dev = codec->dev; - - /* Change some default settings - latch VU */ - wm8741->reg_cache[WM8741_DACLLSB_ATTENUATION] |= WM8741_UPDATELL; - wm8741->reg_cache[WM8741_DACLMSB_ATTENUATION] |= WM8741_UPDATELM; - wm8741->reg_cache[WM8741_DACRLSB_ATTENUATION] |= WM8741_UPDATERL; - wm8741->reg_cache[WM8741_DACRLSB_ATTENUATION] |= WM8741_UPDATERM; - - wm8741_codec = codec; - - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(codec->dev, "Failed to register codec: %d\n", ret); - return ret; - } - - ret = snd_soc_register_dai(&wm8741_dai); - if (ret != 0) { - dev_err(codec->dev, "Failed to register DAI: %d\n", ret); - snd_soc_unregister_codec(codec); - return ret; - } + i2c_set_clientdata(i2c, wm8741); + wm8741->control_type = SND_SOC_I2C; - dev_dbg(codec->dev, "Successful registration\n"); - return 0; + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8741, &wm8741_dai, 1); + if (ret < 0) + goto err_enable; + return ret; err_enable: regulator_bulk_disable(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); err_get: regulator_bulk_free(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); - err: kfree(wm8741); return ret; } -static void wm8741_unregister(struct wm8741_priv *wm8741) -{ - regulator_bulk_free(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); - - snd_soc_unregister_dai(&wm8741_dai); - snd_soc_unregister_codec(&wm8741->codec); - kfree(wm8741); - wm8741_codec = NULL; -} - -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) -static __devinit int wm8741_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) -{ - struct wm8741_priv *wm8741; - struct snd_soc_codec *codec; - - wm8741 = kzalloc(sizeof(struct wm8741_priv), GFP_KERNEL); - if (wm8741 == NULL) - return -ENOMEM; - - codec = &wm8741->codec; - codec->hw_write = (hw_write_t)i2c_master_send; - - i2c_set_clientdata(i2c, wm8741); - codec->control_data = i2c; - - codec->dev = &i2c->dev; - - return wm8741_register(wm8741, SND_SOC_I2C); -} - -static __devexit int wm8741_i2c_remove(struct i2c_client *client) +static int wm8741_i2c_remove(struct i2c_client *client) { struct wm8741_priv *wm8741 = i2c_get_clientdata(client); - wm8741_unregister(wm8741); + + snd_soc_unregister_codec(&client->dev); + regulator_bulk_free(ARRAY_SIZE(wm8741->supplies), wm8741->supplies); + kfree(i2c_get_clientdata(client)); return 0; } @@ -540,29 +447,29 @@ static const struct i2c_device_id wm8741_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, wm8741_i2c_id); - static struct i2c_driver wm8741_i2c_driver = { .driver = { - .name = "WM8741", + .name = "wm8741-codec", .owner = THIS_MODULE, }, .probe = wm8741_i2c_probe, - .remove = __devexit_p(wm8741_i2c_remove), + .remove = wm8741_i2c_remove, .id_table = wm8741_i2c_id, }; #endif static int __init wm8741_modinit(void) { - int ret; + int ret = 0; + #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8741_i2c_driver); if (ret != 0) { - printk(KERN_ERR "Failed to register WM8741 I2C driver: %d\n", - ret); + pr_err("Failed to register WM8741 I2C driver: %d\n", ret); } #endif - return 0; + + return ret; } module_init(wm8741_modinit); |