diff options
Diffstat (limited to 'sound/soc/codecs/wm8753.c')
| -rw-r--r-- | sound/soc/codecs/wm8753.c | 195 |
1 files changed, 146 insertions, 49 deletions
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c index b114c19f530a..e27e7b62b365 100644 --- a/sound/soc/codecs/wm8753.c +++ b/sound/soc/codecs/wm8753.c @@ -39,6 +39,7 @@ #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> @@ -65,28 +66,86 @@ static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec, * We can't read the WM8753 register space when we * are using 2 wire for device control, so we cache them instead. */ -static const u16 wm8753_reg[] = { - 0x0000, 0x0008, 0x0000, 0x000a, - 0x000a, 0x0033, 0x0000, 0x0007, - 0x00ff, 0x00ff, 0x000f, 0x000f, - 0x007b, 0x0000, 0x0032, 0x0000, - 0x00c3, 0x00c3, 0x00c0, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0055, 0x0005, 0x0050, 0x0055, - 0x0050, 0x0055, 0x0050, 0x0055, - 0x0079, 0x0079, 0x0079, 0x0079, - 0x0079, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0097, 0x0097, 0x0000, - 0x0004, 0x0000, 0x0083, 0x0024, - 0x01ba, 0x0000, 0x0083, 0x0024, - 0x01ba, 0x0000, 0x0000, 0x0000 +static const struct reg_default wm8753_reg_defaults[] = { + { 0x00, 0x0000 }, + { 0x01, 0x0008 }, + { 0x02, 0x0000 }, + { 0x03, 0x000a }, + { 0x04, 0x000a }, + { 0x05, 0x0033 }, + { 0x06, 0x0000 }, + { 0x07, 0x0007 }, + { 0x08, 0x00ff }, + { 0x09, 0x00ff }, + { 0x0a, 0x000f }, + { 0x0b, 0x000f }, + { 0x0c, 0x007b }, + { 0x0d, 0x0000 }, + { 0x0e, 0x0032 }, + { 0x0f, 0x0000 }, + { 0x10, 0x00c3 }, + { 0x11, 0x00c3 }, + { 0x12, 0x00c0 }, + { 0x13, 0x0000 }, + { 0x14, 0x0000 }, + { 0x15, 0x0000 }, + { 0x16, 0x0000 }, + { 0x17, 0x0000 }, + { 0x18, 0x0000 }, + { 0x19, 0x0000 }, + { 0x1a, 0x0000 }, + { 0x1b, 0x0000 }, + { 0x1c, 0x0000 }, + { 0x1d, 0x0000 }, + { 0x1e, 0x0000 }, + { 0x1f, 0x0000 }, + { 0x20, 0x0055 }, + { 0x21, 0x0005 }, + { 0x22, 0x0050 }, + { 0x23, 0x0055 }, + { 0x24, 0x0050 }, + { 0x25, 0x0055 }, + { 0x26, 0x0050 }, + { 0x27, 0x0055 }, + { 0x28, 0x0079 }, + { 0x29, 0x0079 }, + { 0x2a, 0x0079 }, + { 0x2b, 0x0079 }, + { 0x2c, 0x0079 }, + { 0x2d, 0x0000 }, + { 0x2e, 0x0000 }, + { 0x2f, 0x0000 }, + { 0x30, 0x0000 }, + { 0x31, 0x0097 }, + { 0x32, 0x0097 }, + { 0x33, 0x0000 }, + { 0x34, 0x0004 }, + { 0x35, 0x0000 }, + { 0x36, 0x0083 }, + { 0x37, 0x0024 }, + { 0x38, 0x01ba }, + { 0x39, 0x0000 }, + { 0x3a, 0x0083 }, + { 0x3b, 0x0024 }, + { 0x3c, 0x01ba }, + { 0x3d, 0x0000 }, + { 0x3e, 0x0000 }, + { 0x3f, 0x0000 }, }; +static bool wm8753_volatile(struct device *dev, unsigned int reg) +{ + return reg == WM8753_RESET; +} + +static bool wm8753_writeable(struct device *dev, unsigned int reg) +{ + return reg <= WM8753_ADCTL2; +} + /* codec private data */ struct wm8753_priv { - enum snd_soc_control_type control_type; + struct regmap *regmap; unsigned int sysclk; unsigned int pcmclk; @@ -1383,25 +1442,15 @@ static void wm8753_work(struct work_struct *work) static int wm8753_suspend(struct snd_soc_codec *codec) { wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF); + codec->cache_sync = 1; return 0; } static int wm8753_resume(struct snd_soc_codec *codec) { - u16 *reg_cache = codec->reg_cache; - int i; - - /* Sync reg_cache with the hardware */ - for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) { - if (i == WM8753_RESET) - continue; - - /* No point in writing hardware default values back */ - if (reg_cache[i] == wm8753_reg[i]) - continue; + struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec); - snd_soc_write(codec, i, reg_cache[i]); - } + regcache_sync(wm8753->regmap); wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY); @@ -1423,7 +1472,8 @@ static int wm8753_probe(struct snd_soc_codec *codec) INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work); - ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type); + codec->control_data = wm8753->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; @@ -1473,9 +1523,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8753 = { .suspend = wm8753_suspend, .resume = wm8753_resume, .set_bias_level = wm8753_set_bias_level, - .reg_cache_size = ARRAY_SIZE(wm8753_reg), - .reg_word_size = sizeof(u16), - .reg_cache_default = wm8753_reg, .controls = wm8753_snd_controls, .num_controls = ARRAY_SIZE(wm8753_snd_controls), @@ -1491,30 +1538,62 @@ static const struct of_device_id wm8753_of_match[] = { }; MODULE_DEVICE_TABLE(of, wm8753_of_match); +static const struct regmap_config wm8753_regmap = { + .reg_bits = 7, + .val_bits = 9, + + .max_register = WM8753_ADCTL2, + .writeable_reg = wm8753_writeable, + .volatile_reg = wm8753_volatile, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = wm8753_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults), +}; + #if defined(CONFIG_SPI_MASTER) static int __devinit wm8753_spi_probe(struct spi_device *spi) { struct wm8753_priv *wm8753; int ret; - wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL); + wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv), + GFP_KERNEL); if (wm8753 == NULL) return -ENOMEM; - wm8753->control_type = SND_SOC_SPI; spi_set_drvdata(spi, wm8753); - ret = snd_soc_register_codec(&spi->dev, - &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai)); - if (ret < 0) - kfree(wm8753); + wm8753->regmap = regmap_init_spi(spi, &wm8753_regmap); + if (IS_ERR(wm8753->regmap)) { + ret = PTR_ERR(wm8753->regmap); + dev_err(&spi->dev, "Failed to allocate register map: %d\n", + ret); + goto err; + } + + ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753, + wm8753_dai, ARRAY_SIZE(wm8753_dai)); + if (ret != 0) { + dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret); + goto err_regmap; + } + + return 0; + +err_regmap: + regmap_exit(wm8753->regmap); +err: return ret; } static int __devexit wm8753_spi_remove(struct spi_device *spi) { + struct wm8753_priv *wm8753 = spi_get_drvdata(spi); + snd_soc_unregister_codec(&spi->dev); - kfree(spi_get_drvdata(spi)); + regmap_exit(wm8753->regmap); + kfree(wm8753); return 0; } @@ -1536,24 +1615,42 @@ static __devinit int wm8753_i2c_probe(struct i2c_client *i2c, struct wm8753_priv *wm8753; int ret; - wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL); + wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv), + GFP_KERNEL); if (wm8753 == NULL) return -ENOMEM; i2c_set_clientdata(i2c, wm8753); - wm8753->control_type = SND_SOC_I2C; - ret = snd_soc_register_codec(&i2c->dev, - &soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai)); - if (ret < 0) - kfree(wm8753); + wm8753->regmap = regmap_init_i2c(i2c, &wm8753_regmap); + if (IS_ERR(wm8753->regmap)) { + ret = PTR_ERR(wm8753->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + ret); + goto err; + } + + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753, + wm8753_dai, ARRAY_SIZE(wm8753_dai)); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); + goto err_regmap; + } + + return 0; + +err_regmap: + regmap_exit(wm8753->regmap); +err: return ret; } static __devexit int wm8753_i2c_remove(struct i2c_client *client) { + struct wm8753_priv *wm8753 = i2c_get_clientdata(client); + snd_soc_unregister_codec(&client->dev); - kfree(i2c_get_clientdata(client)); + regmap_exit(wm8753->regmap); return 0; } |