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Diffstat (limited to 'sound/soc/codecs/wm8971.c')
-rw-r--r--sound/soc/codecs/wm8971.c88
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);