diff options
Diffstat (limited to 'sound/soc/codecs/wm8971.c')
| -rw-r--r-- | sound/soc/codecs/wm8971.c | 484 |
1 files changed, 154 insertions, 330 deletions
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c index 032dca22dbd..09b7b420022 100644 --- a/sound/soc/codecs/wm8971.c +++ b/sound/soc/codecs/wm8971.c @@ -19,18 +19,16 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> -#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> -#include <sound/soc-dapm.h> #include <sound/initval.h> #include "wm8971.h" -#define WM8971_VERSION "0.9" - #define WM8971_REG_COUNT 43 static struct workqueue_struct *wm8971_workq = NULL; @@ -45,58 +43,53 @@ struct wm8971_priv { * We can't read the WM8971 register space when we * are using 2 wire for device control, so we cache them instead. */ -static const u16 wm8971_reg[] = { - 0x0097, 0x0097, 0x0079, 0x0079, /* 0 */ - 0x0000, 0x0008, 0x0000, 0x000a, /* 4 */ - 0x0000, 0x0000, 0x00ff, 0x00ff, /* 8 */ - 0x000f, 0x000f, 0x0000, 0x0000, /* 12 */ - 0x0000, 0x007b, 0x0000, 0x0032, /* 16 */ - 0x0000, 0x00c3, 0x00c3, 0x00c0, /* 20 */ - 0x0000, 0x0000, 0x0000, 0x0000, /* 24 */ - 0x0000, 0x0000, 0x0000, 0x0000, /* 28 */ - 0x0000, 0x0000, 0x0050, 0x0050, /* 32 */ - 0x0050, 0x0050, 0x0050, 0x0050, /* 36 */ - 0x0079, 0x0079, 0x0079, /* 40 */ +static const struct reg_default wm8971_reg_defaults[] = { + { 0, 0x0097 }, + { 1, 0x0097 }, + { 2, 0x0079 }, + { 3, 0x0079 }, + { 4, 0x0000 }, + { 5, 0x0008 }, + { 6, 0x0000 }, + { 7, 0x000a }, + { 8, 0x0000 }, + { 9, 0x0000 }, + { 10, 0x00ff }, + { 11, 0x00ff }, + { 12, 0x000f }, + { 13, 0x000f }, + { 14, 0x0000 }, + { 15, 0x0000 }, + { 16, 0x0000 }, + { 17, 0x007b }, + { 18, 0x0000 }, + { 19, 0x0032 }, + { 20, 0x0000 }, + { 21, 0x00c3 }, + { 22, 0x00c3 }, + { 23, 0x00c0 }, + { 24, 0x0000 }, + { 25, 0x0000 }, + { 26, 0x0000 }, + { 27, 0x0000 }, + { 28, 0x0000 }, + { 29, 0x0000 }, + { 30, 0x0000 }, + { 31, 0x0000 }, + { 32, 0x0000 }, + { 33, 0x0000 }, + { 34, 0x0050 }, + { 35, 0x0050 }, + { 36, 0x0050 }, + { 37, 0x0050 }, + { 38, 0x0050 }, + { 39, 0x0050 }, + { 40, 0x0079 }, + { 41, 0x0079 }, + { 42, 0x0079 }, }; -static inline unsigned int wm8971_read_reg_cache(struct snd_soc_codec *codec, - unsigned int reg) -{ - u16 *cache = codec->reg_cache; - if (reg < WM8971_REG_COUNT) - return cache[reg]; - - return -1; -} - -static inline void wm8971_write_reg_cache(struct snd_soc_codec *codec, - unsigned int reg, unsigned int value) -{ - u16 *cache = codec->reg_cache; - if (reg < WM8971_REG_COUNT) - cache[reg] = value; -} - -static int wm8971_write(struct snd_soc_codec *codec, unsigned int reg, - unsigned int value) -{ - u8 data[2]; - - /* data is - * D15..D9 WM8753 register offset - * D8...D0 register data - */ - data[0] = (reg << 1) | ((value >> 8) & 0x0001); - data[1] = value & 0x00ff; - - wm8971_write_reg_cache (codec, reg, value); - if (codec->hw_write(codec->control_data, data, 2) == 2) - return 0; - else - return -EIO; -} - -#define wm8971_reset(c) wm8971_write(c, WM8971_RESET, 0) +#define wm8971_reset(c) snd_soc_write(c, WM8971_RESET, 0) /* WM8971 Controls */ static const char *wm8971_bass[] = { "Linear Control", "Adaptive Boost" }; @@ -262,7 +255,7 @@ static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = { SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8971_PWR2, 8, 0), SND_SOC_DAPM_PGA("Mono Out 1", WM8971_PWR2, 2, 0, NULL, 0), - SND_SOC_DAPM_MICBIAS("Mic Bias", WM8971_PWR1, 1, 0), + SND_SOC_DAPM_SUPPLY("Mic Bias", WM8971_PWR1, 1, 0, NULL, 0), SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8971_PWR1, 2, 0), SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8971_PWR1, 3, 0), @@ -291,7 +284,7 @@ static const struct snd_soc_dapm_widget wm8971_dapm_widgets[] = { SND_SOC_DAPM_INPUT("MIC"), }; -static const struct snd_soc_dapm_route audio_map[] = { +static const struct snd_soc_dapm_route wm8971_dapm_routes[] = { /* left mixer */ {"Left Mixer", "Playback Switch", "Left DAC"}, {"Left Mixer", "Left Bypass Switch", "Left Line Mux"}, @@ -368,18 +361,6 @@ static const struct snd_soc_dapm_route audio_map[] = { {"Right ADC", NULL, "Right ADC Mux"}, }; -static int wm8971_add_widgets(struct snd_soc_codec *codec) -{ - snd_soc_dapm_new_controls(codec, wm8971_dapm_widgets, - ARRAY_SIZE(wm8971_dapm_widgets)); - - snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); - - snd_soc_dapm_new_widgets(codec); - - return 0; -} - struct _coeff_div { u32 mclk; u32 rate; @@ -453,7 +434,7 @@ static int wm8971_set_dai_sysclk(struct snd_soc_dai *codec_dai, int clk_id, unsigned int freq, int dir) { struct snd_soc_codec *codec = codec_dai->codec; - struct wm8971_priv *wm8971 = codec->private_data; + struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); switch (freq) { case 11289600: @@ -521,7 +502,7 @@ static int wm8971_set_dai_fmt(struct snd_soc_dai *codec_dai, return -EINVAL; } - wm8971_write(codec, WM8971_IFACE, iface); + snd_soc_write(codec, WM8971_IFACE, iface); return 0; } @@ -529,12 +510,10 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params, 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 wm8971_priv *wm8971 = codec->private_data; - u16 iface = wm8971_read_reg_cache(codec, WM8971_IFACE) & 0x1f3; - u16 srate = wm8971_read_reg_cache(codec, WM8971_SRATE) & 0x1c0; + struct snd_soc_codec *codec = dai->codec; + struct wm8971_priv *wm8971 = snd_soc_codec_get_drvdata(codec); + u16 iface = snd_soc_read(codec, WM8971_IFACE) & 0x1f3; + u16 srate = snd_soc_read(codec, WM8971_SRATE) & 0x1c0; int coeff = get_coeff(wm8971->sysclk, params_rate(params)); /* bit size */ @@ -553,9 +532,9 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, } /* set iface & srate */ - wm8971_write(codec, WM8971_IFACE, iface); + snd_soc_write(codec, WM8971_IFACE, iface); if (coeff >= 0) - wm8971_write(codec, WM8971_SRATE, srate | + snd_soc_write(codec, WM8971_SRATE, srate | (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb); return 0; @@ -564,36 +543,39 @@ static int wm8971_pcm_hw_params(struct snd_pcm_substream *substream, static int wm8971_mute(struct snd_soc_dai *dai, int mute) { struct snd_soc_codec *codec = dai->codec; - u16 mute_reg = wm8971_read_reg_cache(codec, WM8971_ADCDAC) & 0xfff7; + u16 mute_reg = snd_soc_read(codec, WM8971_ADCDAC) & 0xfff7; if (mute) - wm8971_write(codec, WM8971_ADCDAC, mute_reg | 0x8); + snd_soc_write(codec, WM8971_ADCDAC, mute_reg | 0x8); else - wm8971_write(codec, WM8971_ADCDAC, mute_reg); + snd_soc_write(codec, WM8971_ADCDAC, mute_reg); return 0; } static int wm8971_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { - u16 pwr_reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e; + u16 pwr_reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; switch (level) { case SND_SOC_BIAS_ON: /* set vmid to 50k and unmute dac */ - wm8971_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); + snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x00c1); break; case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: + if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) + snd_soc_cache_sync(codec); + /* mute dac and set vmid to 500k, enable VREF */ - wm8971_write(codec, WM8971_PWR1, pwr_reg | 0x0140); + snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); break; case SND_SOC_BIAS_OFF: - wm8971_write(codec, WM8971_PWR1, 0x0001); + snd_soc_write(codec, WM8971_PWR1, 0x0001); break; } - codec->bias_level = level; + codec->dapm.bias_level = level; return 0; } @@ -604,15 +586,15 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec, #define WM8971_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE) -static struct snd_soc_dai_ops wm8971_dai_ops = { +static const struct snd_soc_dai_ops wm8971_dai_ops = { .hw_params = wm8971_pcm_hw_params, .digital_mute = wm8971_mute, .set_fmt = wm8971_set_dai_fmt, .set_sysclk = wm8971_set_dai_sysclk, }; -struct snd_soc_dai wm8971_dai = { - .name = "WM8971", +static struct snd_soc_dai_driver wm8971_dai = { + .name = "wm8971-hifi", .playback = { .stream_name = "Playback", .channels_min = 1, @@ -627,157 +609,135 @@ struct snd_soc_dai wm8971_dai = { .formats = WM8971_FORMATS,}, .ops = &wm8971_dai_ops, }; -EXPORT_SYMBOL_GPL(wm8971_dai); static void wm8971_work(struct work_struct *work) { - struct snd_soc_codec *codec = - container_of(work, struct snd_soc_codec, delayed_work.work); - wm8971_set_bias_level(codec, codec->bias_level); + struct snd_soc_dapm_context *dapm = + container_of(work, struct snd_soc_dapm_context, + delayed_work.work); + struct snd_soc_codec *codec = dapm->codec; + wm8971_set_bias_level(codec, codec->dapm.bias_level); } -static int wm8971_suspend(struct platform_device *pdev, pm_message_t state) +static int wm8971_suspend(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; } -static int wm8971_resume(struct platform_device *pdev) +static int wm8971_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - int i; - u8 data[2]; - u16 *cache = codec->reg_cache; u16 reg; - /* Sync reg_cache with the hardware */ - for (i = 0; i < ARRAY_SIZE(wm8971_reg); i++) { - if (i + 1 == WM8971_RESET) - continue; - data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); - data[1] = cache[i] & 0x00ff; - codec->hw_write(codec->control_data, data, 2); - } - wm8971_set_bias_level(codec, SND_SOC_BIAS_STANDBY); /* charge wm8971 caps */ - if (codec->suspend_bias_level == SND_SOC_BIAS_ON) { - reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e; - wm8971_write(codec, WM8971_PWR1, reg | 0x01c0); - codec->bias_level = SND_SOC_BIAS_ON; - queue_delayed_work(wm8971_workq, &codec->delayed_work, + if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) { + reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; + snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); + codec->dapm.bias_level = SND_SOC_BIAS_ON; + queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, msecs_to_jiffies(1000)); } return 0; } -static int wm8971_init(struct snd_soc_device *socdev) +static int wm8971_probe(struct snd_soc_codec *codec) { - struct snd_soc_codec *codec = socdev->card->codec; - int reg, ret = 0; - - codec->name = "WM8971"; - codec->owner = THIS_MODULE; - codec->read = wm8971_read_reg_cache; - codec->write = wm8971_write; - codec->set_bias_level = wm8971_set_bias_level; - codec->dai = &wm8971_dai; - codec->reg_cache_size = ARRAY_SIZE(wm8971_reg); - codec->num_dai = 1; - codec->reg_cache = kmemdup(wm8971_reg, sizeof(wm8971_reg), GFP_KERNEL); - - if (codec->reg_cache == NULL) + int ret = 0; + u16 reg; + + INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8971_work); + wm8971_workq = create_workqueue("wm8971"); + if (wm8971_workq == NULL) return -ENOMEM; wm8971_reset(codec); - /* register pcms */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); - if (ret < 0) { - printk(KERN_ERR "wm8971: failed to create pcms\n"); - goto pcm_err; - } - /* charge output caps - set vmid to 5k for quick power up */ - reg = wm8971_read_reg_cache(codec, WM8971_PWR1) & 0xfe3e; - wm8971_write(codec, WM8971_PWR1, reg | 0x01c0); - codec->bias_level = SND_SOC_BIAS_STANDBY; - queue_delayed_work(wm8971_workq, &codec->delayed_work, + reg = snd_soc_read(codec, WM8971_PWR1) & 0xfe3e; + snd_soc_write(codec, WM8971_PWR1, reg | 0x01c0); + codec->dapm.bias_level = SND_SOC_BIAS_STANDBY; + queue_delayed_work(wm8971_workq, &codec->dapm.delayed_work, msecs_to_jiffies(1000)); /* set the update bits */ - reg = wm8971_read_reg_cache(codec, WM8971_LDAC); - wm8971_write(codec, WM8971_LDAC, reg | 0x0100); - reg = wm8971_read_reg_cache(codec, WM8971_RDAC); - wm8971_write(codec, WM8971_RDAC, reg | 0x0100); - - reg = wm8971_read_reg_cache(codec, WM8971_LOUT1V); - wm8971_write(codec, WM8971_LOUT1V, reg | 0x0100); - reg = wm8971_read_reg_cache(codec, WM8971_ROUT1V); - wm8971_write(codec, WM8971_ROUT1V, reg | 0x0100); - - reg = wm8971_read_reg_cache(codec, WM8971_LOUT2V); - wm8971_write(codec, WM8971_LOUT2V, reg | 0x0100); - reg = wm8971_read_reg_cache(codec, WM8971_ROUT2V); - wm8971_write(codec, WM8971_ROUT2V, reg | 0x0100); - - reg = wm8971_read_reg_cache(codec, WM8971_LINVOL); - wm8971_write(codec, WM8971_LINVOL, reg | 0x0100); - reg = wm8971_read_reg_cache(codec, WM8971_RINVOL); - wm8971_write(codec, WM8971_RINVOL, reg | 0x0100); - - snd_soc_add_controls(codec, wm8971_snd_controls, - ARRAY_SIZE(wm8971_snd_controls)); - wm8971_add_widgets(codec); - ret = snd_soc_init_card(socdev); - if (ret < 0) { - printk(KERN_ERR "wm8971: failed to register card\n"); - goto card_err; - } - return ret; + snd_soc_update_bits(codec, WM8971_LDAC, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8971_RDAC, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8971_LOUT1V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8971_ROUT1V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8971_LOUT2V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8971_ROUT2V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8971_LINVOL, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8971_RINVOL, 0x0100, 0x0100); -card_err: - snd_soc_free_pcms(socdev); - snd_soc_dapm_free(socdev); -pcm_err: - kfree(codec->reg_cache); return ret; } -/* If the i2c layer weren't so broken, we could pass this kind of data - around */ -static struct snd_soc_device *wm8971_socdev; -#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) +/* power down chip */ +static int wm8971_remove(struct snd_soc_codec *codec) +{ + wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); + + if (wm8971_workq) + destroy_workqueue(wm8971_workq); + return 0; +} + +static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { + .probe = wm8971_probe, + .remove = wm8971_remove, + .suspend = wm8971_suspend, + .resume = wm8971_resume, + .set_bias_level = wm8971_set_bias_level, + + .controls = wm8971_snd_controls, + .num_controls = ARRAY_SIZE(wm8971_snd_controls), + .dapm_widgets = wm8971_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wm8971_dapm_widgets), + .dapm_routes = wm8971_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(wm8971_dapm_routes), +}; + +static const struct regmap_config wm8971_regmap = { + .reg_bits = 7, + .val_bits = 9, + .max_register = WM8971_MOUTV, + + .reg_defaults = wm8971_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8971_reg_defaults), + .cache_type = REGCACHE_RBTREE, +}; static int wm8971_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { - struct snd_soc_device *socdev = wm8971_socdev; - struct snd_soc_codec *codec = socdev->card->codec; + struct wm8971_priv *wm8971; + struct regmap *regmap; int ret; - i2c_set_clientdata(i2c, codec); + wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv), + GFP_KERNEL); + if (wm8971 == NULL) + return -ENOMEM; + + regmap = devm_regmap_init_i2c(i2c, &wm8971_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); - codec->control_data = i2c; + i2c_set_clientdata(i2c, wm8971); - ret = wm8971_init(socdev); - if (ret < 0) - pr_err("failed to initialise WM8971\n"); + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm8971, &wm8971_dai, 1); return ret; } static int wm8971_i2c_remove(struct i2c_client *client) { - struct snd_soc_codec *codec = i2c_get_clientdata(client); - kfree(codec->reg_cache); + snd_soc_unregister_codec(&client->dev); return 0; } @@ -789,151 +749,15 @@ MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); static struct i2c_driver wm8971_i2c_driver = { .driver = { - .name = "WM8971 I2C Codec", + .name = "wm8971", .owner = THIS_MODULE, }, - .probe = wm8971_i2c_probe, - .remove = wm8971_i2c_remove, + .probe = wm8971_i2c_probe, + .remove = wm8971_i2c_remove, .id_table = wm8971_i2c_id, }; -static int wm8971_add_i2c_device(struct platform_device *pdev, - const struct wm8971_setup_data *setup) -{ - struct i2c_board_info info; - struct i2c_adapter *adapter; - struct i2c_client *client; - int ret; - - ret = i2c_add_driver(&wm8971_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, "wm8971", 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(&wm8971_i2c_driver); - return -ENODEV; -} - -#endif - -static int wm8971_probe(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct wm8971_setup_data *setup; - struct snd_soc_codec *codec; - struct wm8971_priv *wm8971; - int ret = 0; - - pr_info("WM8971 Audio Codec %s", WM8971_VERSION); - - setup = socdev->codec_data; - codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL); - if (codec == NULL) - return -ENOMEM; - - wm8971 = kzalloc(sizeof(struct wm8971_priv), GFP_KERNEL); - if (wm8971 == NULL) { - kfree(codec); - return -ENOMEM; - } - - codec->private_data = wm8971; - socdev->card->codec = codec; - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - wm8971_socdev = socdev; - - INIT_DELAYED_WORK(&codec->delayed_work, wm8971_work); - wm8971_workq = create_workqueue("wm8971"); - if (wm8971_workq == NULL) { - kfree(codec->private_data); - kfree(codec); - return -ENOMEM; - } - -#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE) - if (setup->i2c_address) { - codec->hw_write = (hw_write_t)i2c_master_send; - ret = wm8971_add_i2c_device(pdev, setup); - } -#endif - /* Add other interfaces here */ - - if (ret != 0) { - destroy_workqueue(wm8971_workq); - kfree(codec->private_data); - kfree(codec); - } - - return ret; -} - -/* power down chip */ -static int wm8971_remove(struct platform_device *pdev) -{ - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - - if (codec->control_data) - wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); - if (wm8971_workq) - destroy_workqueue(wm8971_workq); - 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(&wm8971_i2c_driver); -#endif - kfree(codec->private_data); - kfree(codec); - - return 0; -} - -struct snd_soc_codec_device soc_codec_dev_wm8971 = { - .probe = wm8971_probe, - .remove = wm8971_remove, - .suspend = wm8971_suspend, - .resume = wm8971_resume, -}; - -EXPORT_SYMBOL_GPL(soc_codec_dev_wm8971); - -static int __init wm8971_modinit(void) -{ - return snd_soc_register_dai(&wm8971_dai); -} -module_init(wm8971_modinit); - -static void __exit wm8971_exit(void) -{ - snd_soc_unregister_dai(&wm8971_dai); -} -module_exit(wm8971_exit); +module_i2c_driver(wm8971_i2c_driver); MODULE_DESCRIPTION("ASoC WM8971 driver"); MODULE_AUTHOR("Lab126"); |