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Diffstat (limited to 'sound/soc/codecs/wm8960.c')
-rw-r--r--sound/soc/codecs/wm8960.c150
1 files changed, 104 insertions, 46 deletions
diff --git a/sound/soc/codecs/wm8960.c b/sound/soc/codecs/wm8960.c
index 96518ac8e24c..f0f6f6601785 100644
--- a/sound/soc/codecs/wm8960.c
+++ b/sound/soc/codecs/wm8960.c
@@ -52,25 +52,72 @@
* We can't read the WM8960 register space when we are
* using 2 wire for device control, so we cache them instead.
*/
-static const u16 wm8960_reg[WM8960_CACHEREGNUM] = {
- 0x0097, 0x0097, 0x0000, 0x0000,
- 0x0000, 0x0008, 0x0000, 0x000a,
- 0x01c0, 0x0000, 0x00ff, 0x00ff,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x007b, 0x0100, 0x0032,
- 0x0000, 0x00c3, 0x00c3, 0x01c0,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0000, 0x0000,
- 0x0100, 0x0100, 0x0050, 0x0050,
- 0x0050, 0x0050, 0x0000, 0x0000,
- 0x0000, 0x0000, 0x0040, 0x0000,
- 0x0000, 0x0050, 0x0050, 0x0000,
- 0x0002, 0x0037, 0x004d, 0x0080,
- 0x0008, 0x0031, 0x0026, 0x00e9,
+static const struct reg_default wm8960_reg_defaults[] = {
+ { 0x0, 0x0097 },
+ { 0x1, 0x0097 },
+ { 0x2, 0x0000 },
+ { 0x3, 0x0000 },
+ { 0x4, 0x0000 },
+ { 0x5, 0x0008 },
+ { 0x6, 0x0000 },
+ { 0x7, 0x000a },
+ { 0x8, 0x01c0 },
+ { 0x9, 0x0000 },
+ { 0xa, 0x00ff },
+ { 0xb, 0x00ff },
+
+ { 0x10, 0x0000 },
+ { 0x11, 0x007b },
+ { 0x12, 0x0100 },
+ { 0x13, 0x0032 },
+ { 0x14, 0x0000 },
+ { 0x15, 0x00c3 },
+ { 0x16, 0x00c3 },
+ { 0x17, 0x01c0 },
+ { 0x18, 0x0000 },
+ { 0x19, 0x0000 },
+ { 0x1a, 0x0000 },
+ { 0x1b, 0x0000 },
+ { 0x1c, 0x0000 },
+ { 0x1d, 0x0000 },
+
+ { 0x20, 0x0100 },
+ { 0x21, 0x0100 },
+ { 0x22, 0x0050 },
+
+ { 0x25, 0x0050 },
+ { 0x26, 0x0000 },
+ { 0x27, 0x0000 },
+ { 0x28, 0x0000 },
+ { 0x29, 0x0000 },
+ { 0x2a, 0x0040 },
+ { 0x2b, 0x0000 },
+ { 0x2c, 0x0000 },
+ { 0x2d, 0x0050 },
+ { 0x2e, 0x0050 },
+ { 0x2f, 0x0000 },
+ { 0x30, 0x0002 },
+ { 0x31, 0x0037 },
+
+ { 0x33, 0x0080 },
+ { 0x34, 0x0008 },
+ { 0x35, 0x0031 },
+ { 0x36, 0x0026 },
+ { 0x37, 0x00e9 },
};
+static bool wm8960_volatile(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8960_RESET:
+ return true;
+ default:
+ return false;
+ }
+}
+
struct wm8960_priv {
- enum snd_soc_control_type control_type;
+ struct regmap *regmap;
int (*set_bias_level)(struct snd_soc_codec *,
enum snd_soc_bias_level level);
struct snd_soc_dapm_widget *lout1;
@@ -510,18 +557,25 @@ static int wm8960_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_codec *codec = dai->codec;
struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
+ snd_pcm_format_t format = params_format(params);
int i;
/* bit size */
- switch (params_format(params)) {
+ switch (format) {
case SNDRV_PCM_FORMAT_S16_LE:
+ case SNDRV_PCM_FORMAT_S16_BE:
break;
case SNDRV_PCM_FORMAT_S20_3LE:
+ case SNDRV_PCM_FORMAT_S20_3BE:
iface |= 0x0004;
break;
case SNDRV_PCM_FORMAT_S24_LE:
+ case SNDRV_PCM_FORMAT_S24_BE:
iface |= 0x0008;
break;
+ default:
+ dev_err(codec->dev, "unsupported format %i\n", format);
+ return -EINVAL;
}
/* Update filters for the new rate */
@@ -555,6 +609,8 @@ static int wm8960_mute(struct snd_soc_dai *dai, int mute)
static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
+ struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
+
switch (level) {
case SND_SOC_BIAS_ON:
break;
@@ -566,7 +622,7 @@ static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
case SND_SOC_BIAS_STANDBY:
if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
- snd_soc_cache_sync(codec);
+ regcache_sync(wm8960->regmap);
/* Enable anti-pop features */
snd_soc_write(codec, WM8960_APOP1,
@@ -667,7 +723,7 @@ static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
break;
case SND_SOC_BIAS_OFF:
- snd_soc_cache_sync(codec);
+ regcache_sync(wm8960->regmap);
break;
default:
break;
@@ -906,16 +962,11 @@ static int wm8960_probe(struct snd_soc_codec *codec)
if (!pdata) {
dev_warn(codec->dev, "No platform data supplied\n");
} else {
- if (pdata->dres > WM8960_DRES_MAX) {
- dev_err(codec->dev, "Invalid DRES: %d\n", pdata->dres);
- pdata->dres = 0;
- }
-
if (pdata->capless)
wm8960->set_bias_level = wm8960_set_bias_level_capless;
}
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8960->control_type);
+ ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
if (ret < 0) {
dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
return ret;
@@ -963,14 +1014,24 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
.suspend = wm8960_suspend,
.resume = wm8960_resume,
.set_bias_level = wm8960_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(wm8960_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = wm8960_reg,
+};
+
+static const struct regmap_config wm8960_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+ .max_register = WM8960_PLL4,
+
+ .reg_defaults = wm8960_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
+ .cache_type = REGCACHE_RBTREE,
+
+ .volatile_reg = wm8960_volatile,
};
static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
+ struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
struct wm8960_priv *wm8960;
int ret;
@@ -979,8 +1040,21 @@ static __devinit int wm8960_i2c_probe(struct i2c_client *i2c,
if (wm8960 == NULL)
return -ENOMEM;
+ wm8960->regmap = regmap_init_i2c(i2c, &wm8960_regmap);
+ if (IS_ERR(wm8960->regmap))
+ return PTR_ERR(wm8960->regmap);
+
+ if (pdata && pdata->shared_lrclk) {
+ ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
+ 0x4, 0x4);
+ if (ret != 0) {
+ dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
+ ret);
+ return ret;
+ }
+ }
+
i2c_set_clientdata(i2c, wm8960);
- wm8960->control_type = SND_SOC_I2C;
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8960, &wm8960_dai, 1);
@@ -1010,23 +1084,7 @@ static struct i2c_driver wm8960_i2c_driver = {
.id_table = wm8960_i2c_id,
};
-static int __init wm8960_modinit(void)
-{
- int ret = 0;
- ret = i2c_add_driver(&wm8960_i2c_driver);
- if (ret != 0) {
- printk(KERN_ERR "Failed to register WM8960 I2C driver: %d\n",
- ret);
- }
- return ret;
-}
-module_init(wm8960_modinit);
-
-static void __exit wm8960_exit(void)
-{
- i2c_del_driver(&wm8960_i2c_driver);
-}
-module_exit(wm8960_exit);
+module_i2c_driver(wm8960_i2c_driver);
MODULE_DESCRIPTION("ASoC WM8960 driver");
MODULE_AUTHOR("Liam Girdwood");
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