diff options
Diffstat (limited to 'sound/soc/codecs/wm8971.c')
-rw-r--r-- | sound/soc/codecs/wm8971.c | 88 |
1 files changed, 26 insertions, 62 deletions
diff --git a/sound/soc/codecs/wm8971.c b/sound/soc/codecs/wm8971.c index 572bb80627a4..28fe59e3ce01 100644 --- a/sound/soc/codecs/wm8971.c +++ b/sound/soc/codecs/wm8971.c @@ -19,7 +19,6 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> -#include <linux/platform_device.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> @@ -224,7 +223,7 @@ 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), @@ -253,7 +252,7 @@ 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"}, @@ -330,17 +329,6 @@ 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) -{ - struct snd_soc_dapm_context *dapm = &codec->dapm; - - snd_soc_dapm_new_controls(dapm, wm8971_dapm_widgets, - ARRAY_SIZE(wm8971_dapm_widgets)); - snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); - - return 0; -} - struct _coeff_div { u32 mclk; u32 rate; @@ -546,6 +534,9 @@ static int wm8971_set_bias_level(struct snd_soc_codec *codec, 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 */ snd_soc_write(codec, WM8971_PWR1, pwr_reg | 0x0140); break; @@ -564,7 +555,7 @@ 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, @@ -597,7 +588,7 @@ static void wm8971_work(struct work_struct *work) wm8971_set_bias_level(codec, codec->dapm.bias_level); } -static int wm8971_suspend(struct snd_soc_codec *codec, pm_message_t state) +static int wm8971_suspend(struct snd_soc_codec *codec) { wm8971_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; @@ -605,20 +596,8 @@ static int wm8971_suspend(struct snd_soc_codec *codec, pm_message_t state) static int wm8971_resume(struct snd_soc_codec *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 */ @@ -660,29 +639,14 @@ static int wm8971_probe(struct snd_soc_codec *codec) msecs_to_jiffies(1000)); /* set the update bits */ - reg = snd_soc_read(codec, WM8971_LDAC); - snd_soc_write(codec, WM8971_LDAC, reg | 0x0100); - reg = snd_soc_read(codec, WM8971_RDAC); - snd_soc_write(codec, WM8971_RDAC, reg | 0x0100); - - reg = snd_soc_read(codec, WM8971_LOUT1V); - snd_soc_write(codec, WM8971_LOUT1V, reg | 0x0100); - reg = snd_soc_read(codec, WM8971_ROUT1V); - snd_soc_write(codec, WM8971_ROUT1V, reg | 0x0100); - - reg = snd_soc_read(codec, WM8971_LOUT2V); - snd_soc_write(codec, WM8971_LOUT2V, reg | 0x0100); - reg = snd_soc_read(codec, WM8971_ROUT2V); - snd_soc_write(codec, WM8971_ROUT2V, reg | 0x0100); - - reg = snd_soc_read(codec, WM8971_LINVOL); - snd_soc_write(codec, WM8971_LINVOL, reg | 0x0100); - reg = snd_soc_read(codec, WM8971_RINVOL); - snd_soc_write(codec, WM8971_RINVOL, reg | 0x0100); - - snd_soc_add_controls(codec, wm8971_snd_controls, - ARRAY_SIZE(wm8971_snd_controls)); - wm8971_add_widgets(codec); + 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); return ret; } @@ -707,16 +671,23 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8971 = { .reg_cache_size = ARRAY_SIZE(wm8971_reg), .reg_word_size = sizeof(u16), .reg_cache_default = wm8971_reg, + + .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), }; -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) static __devinit int wm8971_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8971_priv *wm8971; int ret; - wm8971 = kzalloc(sizeof(struct wm8971_priv), GFP_KERNEL); + wm8971 = devm_kzalloc(&i2c->dev, sizeof(struct wm8971_priv), + GFP_KERNEL); if (wm8971 == NULL) return -ENOMEM; @@ -725,15 +696,13 @@ static __devinit int wm8971_i2c_probe(struct i2c_client *i2c, ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8971, &wm8971_dai, 1); - if (ret < 0) - kfree(wm8971); + return ret; } static __devexit int wm8971_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); - kfree(i2c_get_clientdata(client)); return 0; } @@ -745,34 +714,29 @@ MODULE_DEVICE_TABLE(i2c, wm8971_i2c_id); static struct i2c_driver wm8971_i2c_driver = { .driver = { - .name = "wm8971-codec", + .name = "wm8971", .owner = THIS_MODULE, }, .probe = wm8971_i2c_probe, .remove = __devexit_p(wm8971_i2c_remove), .id_table = wm8971_i2c_id, }; -#endif static int __init wm8971_modinit(void) { int ret = 0; -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) ret = i2c_add_driver(&wm8971_i2c_driver); if (ret != 0) { printk(KERN_ERR "Failed to register WM8971 I2C driver: %d\n", ret); } -#endif return ret; } module_init(wm8971_modinit); static void __exit wm8971_exit(void) { -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) i2c_del_driver(&wm8971_i2c_driver); -#endif } module_exit(wm8971_exit); |