Moved Wolfson WM90xx CODECs to multi-component model.
This patch changes the probe() and remove() of the CODEC drivers as follows:-
o Make CODEC driver a platform driver o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core. o Removed all static codec pointers (drivers now support > 1 codec dev) o snd_soc_register_pcms() now done by core. o snd_soc_register_dai() folded into snd_soc_register_codec(). o codec cache can now be malloc()ed by core.
Signed-off-by: Liam Girdwood lrg@slimlogic.co.uk --- sound/soc/codecs/wm2000.h | 3 - sound/soc/codecs/wm9081.c | 208 +++++++++++++-------------------------------- sound/soc/codecs/wm9081.h | 3 - sound/soc/codecs/wm9090.c | 183 +++++++++++++--------------------------- sound/soc/codecs/wm9090.h | 2 - 5 files changed, 118 insertions(+), 281 deletions(-)
diff --git a/sound/soc/codecs/wm2000.h b/sound/soc/codecs/wm2000.h index c18e261..0b6f056 100644 --- a/sound/soc/codecs/wm2000.h +++ b/sound/soc/codecs/wm2000.h @@ -16,9 +16,6 @@ struct wm2000_setup_data {
extern int wm2000_add_controls(struct snd_soc_codec *codec);
-extern struct snd_soc_dai wm2000_dai; -extern struct snd_soc_codec_device soc_codec_dev_wm2000; - #define WM2000_REG_SYS_START 0x8000 #define WM2000_REG_SPEECH_CLARITY 0x8fef #define WM2000_REG_SYS_WATCHDOG 0x8ff6 diff --git a/sound/soc/codecs/wm9081.c b/sound/soc/codecs/wm9081.c index 76b37ff..00249d5 100644 --- a/sound/soc/codecs/wm9081.c +++ b/sound/soc/codecs/wm9081.c @@ -156,7 +156,8 @@ static struct { };
struct wm9081_priv { - struct snd_soc_codec codec; + enum snd_soc_control_type control_type; + void *control_data; u16 reg_cache[WM9081_MAX_REGISTER + 1]; int sysclk_source; int mclk_rate; @@ -1212,8 +1213,8 @@ static struct snd_soc_dai_ops wm9081_dai_ops = { /* We report two channels because the CODEC processes a stereo signal, even * though it is only capable of handling a mono output. */ -struct snd_soc_dai wm9081_dai = { - .name = "WM9081", +static struct snd_soc_dai_driver wm9081_dai = { + .name = "wm9081-hifi", .playback = { .stream_name = "HiFi Playback", .channels_min = 1, @@ -1223,34 +1224,42 @@ struct snd_soc_dai wm9081_dai = { }, .ops = &wm9081_dai_ops, }; -EXPORT_SYMBOL_GPL(wm9081_dai);
- -static struct snd_soc_codec *wm9081_codec; - -static int wm9081_probe(struct platform_device *pdev) +static int wm9081_probe(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; - struct wm9081_priv *wm9081; - int ret = 0; + struct wm9081_priv *wm9081 = snd_soc_codec_get_drvdata(codec); + int ret; + u16 reg;
- if (wm9081_codec == NULL) { - dev_err(&pdev->dev, "Codec device not registered\n"); - return -ENODEV; + codec->control_data = wm9081->control_data; + ret = snd_soc_codec_set_cache_io(codec, 8, 16, wm9081->control_type); + if (ret != 0) { + dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); + return ret; }
- socdev->card->codec = wm9081_codec; - codec = wm9081_codec; - wm9081 = snd_soc_codec_get_drvdata(codec); + reg = snd_soc_read(codec, WM9081_SOFTWARE_RESET); + if (reg != 0x9081) { + dev_err(codec->dev, "Device is not a WM9081: ID=0x%x\n", reg); + ret = -EINVAL; + return ret; + }
- /* register pcms */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); + ret = wm9081_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; }
+ wm9081_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + + /* Enable zero cross by default */ + reg = snd_soc_read(codec, WM9081_ANALOGUE_LINEOUT); + snd_soc_write(codec, WM9081_ANALOGUE_LINEOUT, reg | WM9081_LINEOUTZC); + reg = snd_soc_read(codec, WM9081_ANALOGUE_SPEAKER_PGA); + snd_soc_write(codec, WM9081_ANALOGUE_SPEAKER_PGA, + reg | WM9081_SPKPGAZC); + snd_soc_add_controls(codec, wm9081_snd_controls, ARRAY_SIZE(wm9081_snd_controls)); if (!wm9081->retune) { @@ -1265,40 +1274,28 @@ static int wm9081_probe(struct platform_device *pdev) snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
return ret; - -pcm_err: - return ret; }
-static int wm9081_remove(struct platform_device *pdev) +static int wm9081_remove(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - - snd_soc_free_pcms(socdev); - snd_soc_dapm_free(socdev); - + wm9081_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; }
#ifdef CONFIG_PM -static int wm9081_suspend(struct platform_device *pdev, pm_message_t state) +static int wm9081_suspend(struct snd_soc_codec *codec, pm_message_t state) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - wm9081_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0; }
-static int wm9081_resume(struct platform_device *pdev) +static int wm9081_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; u16 *reg_cache = codec->reg_cache; int i;
- for (i = 0; i < codec->reg_cache_size; i++) { + for (i = 0; i < codec->driver->reg_cache_size; i++) { if (i == WM9081_SOFTWARE_RESET) continue;
@@ -1314,133 +1311,43 @@ static int wm9081_resume(struct platform_device *pdev) #define wm9081_resume NULL #endif
-struct snd_soc_codec_device soc_codec_dev_wm9081 = { +static struct snd_soc_codec_driver soc_codec_dev_wm9081 = { .probe = wm9081_probe, .remove = wm9081_remove, .suspend = wm9081_suspend, .resume = wm9081_resume, + .set_bias_level = wm9081_set_bias_level, + .reg_cache_size = sizeof(wm9081_reg_defaults), + .reg_word_size = sizeof(u16), + .reg_cache_default = wm9081_reg_defaults, + .volatile_register = wm9081_volatile_register, }; -EXPORT_SYMBOL_GPL(soc_codec_dev_wm9081); - -static int wm9081_register(struct wm9081_priv *wm9081, - enum snd_soc_control_type control) -{ - struct snd_soc_codec *codec = &wm9081->codec; - int ret; - u16 reg; - - if (wm9081_codec) { - dev_err(codec->dev, "Another WM9081 is registered\n"); - ret = -EINVAL; - goto err; - } - - mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - snd_soc_codec_set_drvdata(codec, wm9081); - codec->name = "WM9081"; - codec->owner = THIS_MODULE; - codec->dai = &wm9081_dai; - codec->num_dai = 1; - codec->reg_cache_size = ARRAY_SIZE(wm9081->reg_cache); - codec->reg_cache = &wm9081->reg_cache; - codec->bias_level = SND_SOC_BIAS_OFF; - codec->set_bias_level = wm9081_set_bias_level; - codec->volatile_register = wm9081_volatile_register; - - memcpy(codec->reg_cache, wm9081_reg_defaults, - sizeof(wm9081_reg_defaults)); - - ret = snd_soc_codec_set_cache_io(codec, 8, 16, control); - if (ret != 0) { - dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - goto err; - } - - reg = snd_soc_read(codec, WM9081_SOFTWARE_RESET); - if (reg != 0x9081) { - dev_err(codec->dev, "Device is not a WM9081: ID=0x%x\n", reg); - ret = -EINVAL; - goto err; - } - - ret = wm9081_reset(codec); - if (ret < 0) { - dev_err(codec->dev, "Failed to issue reset\n"); - goto err; - } - - wm9081_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - /* Enable zero cross by default */ - reg = snd_soc_read(codec, WM9081_ANALOGUE_LINEOUT); - snd_soc_write(codec, WM9081_ANALOGUE_LINEOUT, reg | WM9081_LINEOUTZC); - reg = snd_soc_read(codec, WM9081_ANALOGUE_SPEAKER_PGA); - snd_soc_write(codec, WM9081_ANALOGUE_SPEAKER_PGA, - reg | WM9081_SPKPGAZC); - - wm9081_dai.dev = codec->dev; - - wm9081_codec = codec; - - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(codec->dev, "Failed to register codec: %d\n", ret); - goto err; - } - - ret = snd_soc_register_dai(&wm9081_dai); - if (ret != 0) { - dev_err(codec->dev, "Failed to register DAI: %d\n", ret); - goto err_codec; - } - - return 0; - -err_codec: - snd_soc_unregister_codec(codec); -err: - kfree(wm9081); - return ret; -} - -static void wm9081_unregister(struct wm9081_priv *wm9081) -{ - wm9081_set_bias_level(&wm9081->codec, SND_SOC_BIAS_OFF); - snd_soc_unregister_dai(&wm9081_dai); - snd_soc_unregister_codec(&wm9081->codec); - kfree(wm9081); - wm9081_codec = NULL; -}
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) static __devinit int wm9081_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm9081_priv *wm9081; - struct snd_soc_codec *codec; + int ret;
wm9081 = kzalloc(sizeof(struct wm9081_priv), GFP_KERNEL); if (wm9081 == NULL) return -ENOMEM;
- codec = &wm9081->codec; - codec->hw_write = (hw_write_t)i2c_master_send; - wm9081->retune = i2c->dev.platform_data; - i2c_set_clientdata(i2c, wm9081); - codec->control_data = i2c; - - codec->dev = &i2c->dev; + wm9081->control_data = i2c;
- return wm9081_register(wm9081, SND_SOC_I2C); + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm9081, &wm9081_dai, 1); + if (ret < 0) + kfree(wm9081); + return ret; }
static __devexit int wm9081_i2c_remove(struct i2c_client *client) { - struct wm9081_priv *wm9081 = i2c_get_clientdata(client); - wm9081_unregister(wm9081); + snd_soc_unregister_codec(&client->dev); + kfree(i2c_get_clientdata(client)); return 0; }
@@ -1452,31 +1359,34 @@ MODULE_DEVICE_TABLE(i2c, wm9081_i2c_id);
static struct i2c_driver wm9081_i2c_driver = { .driver = { - .name = "wm9081", + .name = "wm9081-codec", .owner = THIS_MODULE, }, .probe = wm9081_i2c_probe, .remove = __devexit_p(wm9081_i2c_remove), .id_table = wm9081_i2c_id, }; +#endif
static int __init wm9081_modinit(void) { - int ret; - + int ret = 0; +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm9081_i2c_driver); if (ret != 0) { printk(KERN_ERR "Failed to register WM9081 I2C driver: %d\n", ret); } - +#endif return ret; } module_init(wm9081_modinit);
static void __exit wm9081_exit(void) { +#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&wm9081_i2c_driver); +#endif } module_exit(wm9081_exit);
diff --git a/sound/soc/codecs/wm9081.h b/sound/soc/codecs/wm9081.h index 42d3bc7..871cccb 100644 --- a/sound/soc/codecs/wm9081.h +++ b/sound/soc/codecs/wm9081.h @@ -15,9 +15,6 @@
#include <sound/soc.h>
-extern struct snd_soc_dai wm9081_dai; -extern struct snd_soc_codec_device soc_codec_dev_wm9081; - /* * SYSCLK sources */ diff --git a/sound/soc/codecs/wm9090.c b/sound/soc/codecs/wm9090.c index 1592250..7a18254 100644 --- a/sound/soc/codecs/wm9090.c +++ b/sound/soc/codecs/wm9090.c @@ -34,8 +34,6 @@
#include "wm9090.h"
-static struct snd_soc_codec *wm9090_codec; - static const u16 wm9090_reg_defaults[] = { 0x9093, /* R0 - Software Reset */ 0x0006, /* R1 - Power Management (1) */ @@ -142,15 +140,10 @@ static const u16 wm9090_reg_defaults[] = {
/* This struct is used to save the context */ struct wm9090_priv { - /* We're not really registering as a CODEC since ASoC core - * does not yet support multiple CODECs but having the CODEC - * structure means we can reuse some of the ASoC core - * features. - */ - struct snd_soc_codec codec; struct mutex mutex; u16 reg_cache[WM9090_MAX_REGISTER + 1]; struct wm9090_platform_data pdata; + void *control_data; };
static int wm9090_volatile(unsigned int reg) @@ -523,7 +516,7 @@ static int wm9090_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_STANDBY: if (codec->bias_level == SND_SOC_BIAS_OFF) { /* Restore the register cache */ - for (i = 1; i < codec->reg_cache_size; i++) { + for (i = 1; i < codec->driver->reg_cache_size; i++) { if (reg_cache[i] == wm9090_reg_defaults[i]) continue; if (wm9090_volatile(i)) @@ -556,51 +549,67 @@ static int wm9090_set_bias_level(struct snd_soc_codec *codec, return 0; }
-static int wm9090_probe(struct platform_device *pdev) +static int wm9090_probe(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec; - int ret = 0; + struct wm9090_priv *wm9090 = snd_soc_codec_get_drvdata(codec); + int ret;
- if (wm9090_codec == NULL) { - dev_err(&pdev->dev, "Codec device not registered\n"); - return -ENODEV; + codec->control_data = wm9090->control_data; + ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C); + if (ret != 0) { + dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); + return ret; }
- socdev->card->codec = wm9090_codec; - codec = wm9090_codec; - - /* register pcms */ - ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1); - if (ret < 0) { - dev_err(codec->dev, "failed to create pcms: %d\n", ret); - goto pcm_err; + ret = snd_soc_read(codec, WM9090_SOFTWARE_RESET); + if (ret < 0) + return ret; + if (ret != wm9090_reg_defaults[WM9090_SOFTWARE_RESET]) { + dev_err(codec->dev, "Device is not a WM9090, ID=%x\n", ret); + return -EINVAL; }
+ ret = snd_soc_write(codec, WM9090_SOFTWARE_RESET, 0); + if (ret < 0) + return ret; + + /* Configure some defaults; they will be written out when we + * bring the bias up. + */ + wm9090->reg_cache[WM9090_IN1_LINE_INPUT_A_VOLUME] |= WM9090_IN1_VU + | WM9090_IN1A_ZC; + wm9090->reg_cache[WM9090_IN1_LINE_INPUT_B_VOLUME] |= WM9090_IN1_VU + | WM9090_IN1B_ZC; + wm9090->reg_cache[WM9090_IN2_LINE_INPUT_A_VOLUME] |= WM9090_IN2_VU + | WM9090_IN2A_ZC; + wm9090->reg_cache[WM9090_IN2_LINE_INPUT_B_VOLUME] |= WM9090_IN2_VU + | WM9090_IN2B_ZC; + wm9090->reg_cache[WM9090_SPEAKER_VOLUME_LEFT] |= + WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC; + wm9090->reg_cache[WM9090_LEFT_OUTPUT_VOLUME] |= + WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC; + wm9090->reg_cache[WM9090_RIGHT_OUTPUT_VOLUME] |= + WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC; + + wm9090->reg_cache[WM9090_CLOCKING_1] |= WM9090_TOCLK_ENA; + + wm9090_set_bias_level(codec, SND_SOC_BIAS_STANDBY); + wm9090_add_controls(codec);
return 0; - -pcm_err: - return ret; }
#ifdef CONFIG_PM -static int wm9090_suspend(struct platform_device *pdev, pm_message_t state) +static int wm9090_suspend(struct snd_soc_codec *codec, pm_message_t state) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0; }
-static int wm9090_resume(struct platform_device *pdev) +static int wm9090_resume(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_codec *codec = socdev->card->codec; - wm9090_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
return 0; @@ -610,29 +619,29 @@ static int wm9090_resume(struct platform_device *pdev) #define wm9090_resume NULL #endif
-static int wm9090_remove(struct platform_device *pdev) +static int wm9090_remove(struct snd_soc_codec *codec) { - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - - snd_soc_free_pcms(socdev); - snd_soc_dapm_free(socdev); + wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0; }
-struct snd_soc_codec_device soc_codec_dev_wm9090 = { +static struct snd_soc_codec_driver soc_codec_dev_wm9090 = { .probe = wm9090_probe, .remove = wm9090_remove, .suspend = wm9090_suspend, .resume = wm9090_resume, + .set_bias_level = wm9090_set_bias_level, + .reg_cache_size = (WM9090_MAX_REGISTER + 1), + .reg_word_size = sizeof(u16), + .reg_cache_default = wm9090_reg_defaults, + .volatile_register = wm9090_volatile, }; -EXPORT_SYMBOL_GPL(soc_codec_dev_wm9090);
static int wm9090_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm9090_priv *wm9090; - struct snd_soc_codec *codec; int ret;
wm9090 = kzalloc(sizeof(*wm9090), GFP_KERNEL); @@ -640,102 +649,28 @@ static int wm9090_i2c_probe(struct i2c_client *i2c, dev_err(&i2c->dev, "Can not allocate memory\n"); return -ENOMEM; } - codec = &wm9090->codec;
if (i2c->dev.platform_data) memcpy(&wm9090->pdata, i2c->dev.platform_data, sizeof(wm9090->pdata));
- wm9090_codec = codec; - i2c_set_clientdata(i2c, wm9090); + wm9090->control_data = i2c; + mutex_init(&wm9090->mutex);
- mutex_init(&codec->mutex); - INIT_LIST_HEAD(&codec->dapm_widgets); - INIT_LIST_HEAD(&codec->dapm_paths); - - codec->control_data = i2c; - snd_soc_codec_set_drvdata(codec, wm9090); - codec->dev = &i2c->dev; - codec->name = "WM9090"; - codec->owner = THIS_MODULE; - codec->bias_level = SND_SOC_BIAS_OFF; - codec->set_bias_level = wm9090_set_bias_level, - codec->reg_cache_size = WM9090_MAX_REGISTER + 1; - codec->reg_cache = &wm9090->reg_cache; - codec->volatile_register = wm9090_volatile; - - ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C); - if (ret != 0) { - dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - goto err; - } - - memcpy(&wm9090->reg_cache, wm9090_reg_defaults, - sizeof(wm9090->reg_cache)); - - ret = snd_soc_read(codec, WM9090_SOFTWARE_RESET); - if (ret < 0) - goto err; - if (ret != wm9090_reg_defaults[WM9090_SOFTWARE_RESET]) { - dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", ret); - ret = -EINVAL; - goto err; - } - - ret = snd_soc_write(codec, WM9090_SOFTWARE_RESET, 0); + ret = snd_soc_register_codec(&i2c->dev, + &soc_codec_dev_wm9090, NULL, 0); if (ret < 0) - goto err; - - /* Configure some defaults; they will be written out when we - * bring the bias up. - */ - wm9090->reg_cache[WM9090_IN1_LINE_INPUT_A_VOLUME] |= WM9090_IN1_VU - | WM9090_IN1A_ZC; - wm9090->reg_cache[WM9090_IN1_LINE_INPUT_B_VOLUME] |= WM9090_IN1_VU - | WM9090_IN1B_ZC; - wm9090->reg_cache[WM9090_IN2_LINE_INPUT_A_VOLUME] |= WM9090_IN2_VU - | WM9090_IN2A_ZC; - wm9090->reg_cache[WM9090_IN2_LINE_INPUT_B_VOLUME] |= WM9090_IN2_VU - | WM9090_IN2B_ZC; - wm9090->reg_cache[WM9090_SPEAKER_VOLUME_LEFT] |= - WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC; - wm9090->reg_cache[WM9090_LEFT_OUTPUT_VOLUME] |= - WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC; - wm9090->reg_cache[WM9090_RIGHT_OUTPUT_VOLUME] |= - WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC; - - wm9090->reg_cache[WM9090_CLOCKING_1] |= WM9090_TOCLK_ENA; - - wm9090_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - ret = snd_soc_register_codec(codec); - if (ret != 0) { - dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); - goto err_bias; - } - - return 0; - -err_bias: - wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF); -err: - kfree(wm9090); - i2c_set_clientdata(i2c, NULL); - wm9090_codec = NULL; - + kfree(wm9090); return ret; }
static int wm9090_i2c_remove(struct i2c_client *i2c) { struct wm9090_priv *wm9090 = i2c_get_clientdata(i2c); - struct snd_soc_codec *codec = &wm9090->codec;
- snd_soc_unregister_codec(codec); - wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF); + snd_soc_unregister_codec(&i2c->dev); kfree(wm9090); - wm9090_codec = NULL;
return 0; } @@ -748,7 +683,7 @@ MODULE_DEVICE_TABLE(i2c, wm9090_id);
static struct i2c_driver wm9090_i2c_driver = { .driver = { - .name = "wm9090", + .name = "wm9090-codec", .owner = THIS_MODULE, }, .probe = wm9090_i2c_probe, diff --git a/sound/soc/codecs/wm9090.h b/sound/soc/codecs/wm9090.h index b08eab9..29b9d9f 100644 --- a/sound/soc/codecs/wm9090.h +++ b/sound/soc/codecs/wm9090.h @@ -23,8 +23,6 @@ #ifndef __WM9090_H #define __WM9090_H
-extern struct snd_soc_codec_device soc_codec_dev_wm9090; - /* * Register values. */