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Diffstat (limited to 'sound/soc/codecs/wm8988.c')
-rw-r--r--sound/soc/codecs/wm8988.c142
1 files changed, 121 insertions, 21 deletions
diff --git a/sound/soc/codecs/wm8988.c b/sound/soc/codecs/wm8988.c
index 4ef9d4cb7d7c..6cdf6a2bc283 100644
--- a/sound/soc/codecs/wm8988.c
+++ b/sound/soc/codecs/wm8988.c
@@ -33,24 +33,89 @@
* We can't read the WM8988 register space when we
* are using 2 wire for device control, so we cache them instead.
*/
-static const u16 wm8988_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 wm8988_reg_defaults[] = {
+ { 0, 0x0097 },
+ { 1, 0x0097 },
+ { 2, 0x0079 },
+ { 3, 0x0079 },
+ { 5, 0x0008 },
+ { 7, 0x000a },
+ { 8, 0x0000 },
+ { 10, 0x00ff },
+ { 11, 0x00ff },
+ { 12, 0x000f },
+ { 13, 0x000f },
+ { 16, 0x0000 },
+ { 17, 0x007b },
+ { 18, 0x0000 },
+ { 19, 0x0032 },
+ { 20, 0x0000 },
+ { 21, 0x00c3 },
+ { 22, 0x00c3 },
+ { 23, 0x00c0 },
+ { 24, 0x0000 },
+ { 25, 0x0000 },
+ { 26, 0x0000 },
+ { 27, 0x0000 },
+ { 31, 0x0000 },
+ { 32, 0x0000 },
+ { 33, 0x0000 },
+ { 34, 0x0050 },
+ { 35, 0x0050 },
+ { 36, 0x0050 },
+ { 37, 0x0050 },
+ { 40, 0x0079 },
+ { 41, 0x0079 },
+ { 42, 0x0079 },
};
+static bool wm8988_writeable(struct device *dev, unsigned int reg)
+{
+ switch (reg) {
+ case WM8988_LINVOL:
+ case WM8988_RINVOL:
+ case WM8988_LOUT1V:
+ case WM8988_ROUT1V:
+ case WM8988_ADCDAC:
+ case WM8988_IFACE:
+ case WM8988_SRATE:
+ case WM8988_LDAC:
+ case WM8988_RDAC:
+ case WM8988_BASS:
+ case WM8988_TREBLE:
+ case WM8988_RESET:
+ case WM8988_3D:
+ case WM8988_ALC1:
+ case WM8988_ALC2:
+ case WM8988_ALC3:
+ case WM8988_NGATE:
+ case WM8988_LADC:
+ case WM8988_RADC:
+ case WM8988_ADCTL1:
+ case WM8988_ADCTL2:
+ case WM8988_PWR1:
+ case WM8988_PWR2:
+ case WM8988_ADCTL3:
+ case WM8988_ADCIN:
+ case WM8988_LADCIN:
+ case WM8988_RADCIN:
+ case WM8988_LOUTM1:
+ case WM8988_LOUTM2:
+ case WM8988_ROUTM1:
+ case WM8988_ROUTM2:
+ case WM8988_LOUT2V:
+ case WM8988_ROUT2V:
+ case WM8988_LPPB:
+ return true;
+ default:
+ return false;
+ }
+}
+
/* codec private data */
struct wm8988_priv {
+ struct regmap *regmap;
unsigned int sysclk;
- enum snd_soc_control_type control_type;
struct snd_pcm_hw_constraint_list *sysclk_constraints;
};
@@ -661,6 +726,7 @@ static int wm8988_mute(struct snd_soc_dai *dai, int mute)
static int wm8988_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
+ struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec);
u16 pwr_reg = snd_soc_read(codec, WM8988_PWR1) & ~0x1c1;
switch (level) {
@@ -674,7 +740,7 @@ static int wm8988_set_bias_level(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(wm8988->regmap);
/* VREF, VMID=2x5k */
snd_soc_write(codec, WM8988_PWR1, pwr_reg | 0x1c1);
@@ -730,7 +796,10 @@ static struct snd_soc_dai_driver wm8988_dai = {
static int wm8988_suspend(struct snd_soc_codec *codec)
{
+ struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec);
+
wm8988_set_bias_level(codec, SND_SOC_BIAS_OFF);
+ regcache_mark_dirty(wm8988->regmap);
return 0;
}
@@ -745,7 +814,8 @@ static int wm8988_probe(struct snd_soc_codec *codec)
struct wm8988_priv *wm8988 = snd_soc_codec_get_drvdata(codec);
int ret = 0;
- ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8988->control_type);
+ codec->control_data = wm8988->regmap;
+ 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;
@@ -781,9 +851,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8988 = {
.suspend = wm8988_suspend,
.resume = wm8988_resume,
.set_bias_level = wm8988_set_bias_level,
- .reg_cache_size = ARRAY_SIZE(wm8988_reg),
- .reg_word_size = sizeof(u16),
- .reg_cache_default = wm8988_reg,
.controls = wm8988_snd_controls,
.num_controls = ARRAY_SIZE(wm8988_snd_controls),
@@ -793,6 +860,18 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8988 = {
.num_dapm_routes = ARRAY_SIZE(wm8988_dapm_routes),
};
+static struct regmap_config wm8988_regmap = {
+ .reg_bits = 7,
+ .val_bits = 9,
+
+ .max_register = WM8988_LPPB,
+ .writeable_reg = wm8988_writeable,
+
+ .cache_type = REGCACHE_RBTREE,
+ .reg_defaults = wm8988_reg_defaults,
+ .num_reg_defaults = ARRAY_SIZE(wm8988_reg_defaults),
+};
+
#if defined(CONFIG_SPI_MASTER)
static int __devinit wm8988_spi_probe(struct spi_device *spi)
{
@@ -804,18 +883,28 @@ static int __devinit wm8988_spi_probe(struct spi_device *spi)
if (wm8988 == NULL)
return -ENOMEM;
- wm8988->control_type = SND_SOC_SPI;
+ wm8988->regmap = regmap_init_spi(spi, &wm8988_regmap);
+ if (IS_ERR(wm8988->regmap)) {
+ ret = PTR_ERR(wm8988->regmap);
+ dev_err(&spi->dev, "Failed to init regmap: %d\n", ret);
+ return ret;
+ }
+
spi_set_drvdata(spi, wm8988);
ret = snd_soc_register_codec(&spi->dev,
&soc_codec_dev_wm8988, &wm8988_dai, 1);
+ if (ret != 0)
+ regmap_exit(wm8988->regmap);
return ret;
}
static int __devexit wm8988_spi_remove(struct spi_device *spi)
{
+ struct wm8988_priv *wm8988 = spi_get_drvdata(spi);
snd_soc_unregister_codec(&spi->dev);
+ regmap_exit(wm8988->regmap);
return 0;
}
@@ -842,16 +931,27 @@ static __devinit int wm8988_i2c_probe(struct i2c_client *i2c,
return -ENOMEM;
i2c_set_clientdata(i2c, wm8988);
- wm8988->control_type = SND_SOC_I2C;
+
+ wm8988->regmap = regmap_init_i2c(i2c, &wm8988_regmap);
+ if (IS_ERR(wm8988->regmap)) {
+ ret = PTR_ERR(wm8988->regmap);
+ dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
+ return ret;
+ }
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_wm8988, &wm8988_dai, 1);
+ if (ret != 0)
+ regmap_exit(wm8988->regmap);
+
return ret;
}
static __devexit int wm8988_i2c_remove(struct i2c_client *client)
{
+ struct wm8988_priv *wm8988 = i2c_get_clientdata(client);
snd_soc_unregister_codec(&client->dev);
+ regmap_exit(wm8988->regmap);
return 0;
}
@@ -863,7 +963,7 @@ MODULE_DEVICE_TABLE(i2c, wm8988_i2c_id);
static struct i2c_driver wm8988_i2c_driver = {
.driver = {
- .name = "wm8988-codec",
+ .name = "wm8988",
.owner = THIS_MODULE,
},
.probe = wm8988_i2c_probe,
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-02 07:03:33 +0000