diff options
Diffstat (limited to 'sound/soc/codecs/wm8776.c')
| -rw-r--r-- | sound/soc/codecs/wm8776.c | 75 |
1 files changed, 60 insertions, 15 deletions
diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c index 879c356a9045..c32249ddb2e0 100644 --- a/sound/soc/codecs/wm8776.c +++ b/sound/soc/codecs/wm8776.c @@ -19,6 +19,7 @@ #include <linux/pm.h> #include <linux/i2c.h> #include <linux/of_device.h> +#include <linux/regmap.h> #include <linux/spi/spi.h> #include <linux/slab.h> #include <sound/core.h> @@ -37,18 +38,46 @@ enum wm8776_chip_type { /* codec private data */ struct wm8776_priv { - enum snd_soc_control_type control_type; + struct regmap *regmap; int sysclk[2]; }; -static const u16 wm8776_reg[WM8776_CACHEREGNUM] = { - 0x79, 0x79, 0x79, 0xff, 0xff, /* 4 */ - 0xff, 0x00, 0x90, 0x00, 0x00, /* 9 */ - 0x22, 0x22, 0x22, 0x08, 0xcf, /* 14 */ - 0xcf, 0x7b, 0x00, 0x32, 0x00, /* 19 */ - 0xa6, 0x01, 0x01 +static const struct reg_default wm8776_reg_defaults[] = { + { 0, 0x79 }, + { 1, 0x79 }, + { 2, 0x79 }, + { 3, 0xff }, + { 4, 0xff }, + { 5, 0xff }, + { 6, 0x00 }, + { 7, 0x90 }, + { 8, 0x00 }, + { 9, 0x00 }, + { 10, 0x22 }, + { 11, 0x22 }, + { 12, 0x22 }, + { 13, 0x08 }, + { 14, 0xcf }, + { 15, 0xcf }, + { 16, 0x7b }, + { 17, 0x00 }, + { 18, 0x32 }, + { 19, 0x00 }, + { 20, 0xa6 }, + { 21, 0x01 }, + { 22, 0x01 }, }; +static bool wm8776_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case WM8776_RESET: + return true; + default: + return false; + } +} + static int wm8776_reset(struct snd_soc_codec *codec) { return snd_soc_write(codec, WM8776_RESET, 0); @@ -306,6 +335,8 @@ static int wm8776_set_sysclk(struct snd_soc_dai *dai, static int wm8776_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { + struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); + switch (level) { case SND_SOC_BIAS_ON: break; @@ -313,7 +344,7 @@ static int wm8776_set_bias_level(struct snd_soc_codec *codec, break; case SND_SOC_BIAS_STANDBY: if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { - snd_soc_cache_sync(codec); + regcache_sync(wm8776->regmap); /* Disable the global powerdown; DAPM does the rest */ snd_soc_update_bits(codec, WM8776_PWRDOWN, 1, 0); @@ -396,10 +427,9 @@ static int wm8776_resume(struct snd_soc_codec *codec) static int wm8776_probe(struct snd_soc_codec *codec) { - struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec); int ret = 0; - ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8776->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; @@ -434,9 +464,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8776 = { .suspend = wm8776_suspend, .resume = wm8776_resume, .set_bias_level = wm8776_set_bias_level, - .reg_cache_size = ARRAY_SIZE(wm8776_reg), - .reg_word_size = sizeof(u16), - .reg_cache_default = wm8776_reg, .controls = wm8776_snd_controls, .num_controls = ARRAY_SIZE(wm8776_snd_controls), @@ -452,6 +479,18 @@ static const struct of_device_id wm8776_of_match[] = { }; MODULE_DEVICE_TABLE(of, wm8776_of_match); +static const struct regmap_config wm8776_regmap = { + .reg_bits = 7, + .val_bits = 9, + .max_register = WM8776_RESET, + + .reg_defaults = wm8776_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8776_reg_defaults), + .cache_type = REGCACHE_RBTREE, + + .volatile_reg = wm8776_volatile, +}; + #if defined(CONFIG_SPI_MASTER) static int __devinit wm8776_spi_probe(struct spi_device *spi) { @@ -463,7 +502,10 @@ static int __devinit wm8776_spi_probe(struct spi_device *spi) if (wm8776 == NULL) return -ENOMEM; - wm8776->control_type = SND_SOC_SPI; + wm8776->regmap = devm_regmap_init_spi(spi, &wm8776_regmap); + if (IS_ERR(wm8776->regmap)) + return PTR_ERR(wm8776->regmap); + spi_set_drvdata(spi, wm8776); ret = snd_soc_register_codec(&spi->dev, @@ -501,8 +543,11 @@ static __devinit int wm8776_i2c_probe(struct i2c_client *i2c, if (wm8776 == NULL) return -ENOMEM; + wm8776->regmap = devm_regmap_init_i2c(i2c, &wm8776_regmap); + if (IS_ERR(wm8776->regmap)) + return PTR_ERR(wm8776->regmap); + i2c_set_clientdata(i2c, wm8776); - wm8776->control_type = SND_SOC_I2C; ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8776, wm8776_dai, ARRAY_SIZE(wm8776_dai)); |