diff options
Diffstat (limited to 'sound/soc/codecs/wm8731.c')
| -rw-r--r-- | sound/soc/codecs/wm8731.c | 109 |
1 files changed, 86 insertions, 23 deletions
diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c index 8821af70e660..a32caa72bd7d 100644 --- a/sound/soc/codecs/wm8731.c +++ b/sound/soc/codecs/wm8731.c @@ -19,6 +19,7 @@ #include <linux/pm.h> #include <linux/i2c.h> #include <linux/slab.h> +#include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/spi/spi.h> #include <linux/of_device.h> @@ -41,7 +42,7 @@ static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = { /* codec private data */ struct wm8731_priv { - enum snd_soc_control_type control_type; + struct regmap *regmap; struct regulator_bulk_data supplies[WM8731_NUM_SUPPLIES]; unsigned int sysclk; int sysclk_type; @@ -52,16 +53,30 @@ struct wm8731_priv { /* * wm8731 register cache - * We can't read the WM8731 register space when we are - * using 2 wire for device control, so we cache them instead. - * There is no point in caching the reset register */ -static const u16 wm8731_reg[WM8731_CACHEREGNUM] = { - 0x0097, 0x0097, 0x0079, 0x0079, - 0x000a, 0x0008, 0x009f, 0x000a, - 0x0000, 0x0000 +static const struct reg_default wm8731_reg_defaults[] = { + { 0, 0x0097 }, + { 1, 0x0097 }, + { 2, 0x0079 }, + { 3, 0x0079 }, + { 4, 0x000a }, + { 5, 0x0008 }, + { 6, 0x009f }, + { 7, 0x000a }, + { 8, 0x0000 }, + { 9, 0x0000 }, }; +static bool wm8731_volatile(struct device *dev, unsigned int reg) +{ + return reg == WM8731_RESET; +} + +static bool wm8731_writeable(struct device *dev, unsigned int reg) +{ + return reg <= WM8731_RESET; +} + #define wm8731_reset(c) snd_soc_write(c, WM8731_RESET, 0) static const char *wm8731_input_select[] = {"Line In", "Mic"}; @@ -441,7 +456,7 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec, if (ret != 0) return ret; - snd_soc_cache_sync(codec); + regcache_sync(wm8731->regmap); } /* Clear PWROFF, gate CLKOUT, everything else as-is */ @@ -452,7 +467,7 @@ static int wm8731_set_bias_level(struct snd_soc_codec *codec, snd_soc_write(codec, WM8731_PWR, 0xffff); regulator_bulk_disable(ARRAY_SIZE(wm8731->supplies), wm8731->supplies); - codec->cache_sync = 1; + regcache_mark_dirty(wm8731->regmap); break; } codec->dapm.bias_level = level; @@ -513,7 +528,8 @@ static int wm8731_probe(struct snd_soc_codec *codec) struct wm8731_priv *wm8731 = snd_soc_codec_get_drvdata(codec); int ret = 0, i; - ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8731->control_type); + codec->control_data = wm8731->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; @@ -585,9 +601,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8731 = { .suspend = wm8731_suspend, .resume = wm8731_resume, .set_bias_level = wm8731_set_bias_level, - .reg_cache_size = ARRAY_SIZE(wm8731_reg), - .reg_word_size = sizeof(u16), - .reg_cache_default = wm8731_reg, .dapm_widgets = wm8731_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(wm8731_dapm_widgets), .dapm_routes = wm8731_intercon, @@ -603,6 +616,19 @@ static const struct of_device_id wm8731_of_match[] = { MODULE_DEVICE_TABLE(of, wm8731_of_match); +static const struct regmap_config wm8731_regmap = { + .reg_bits = 7, + .val_bits = 9, + + .max_register = WM8731_RESET, + .volatile_reg = wm8731_volatile, + .writeable_reg = wm8731_writeable, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = wm8731_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8731_reg_defaults), +}; + #if defined(CONFIG_SPI_MASTER) static int __devinit wm8731_spi_probe(struct spi_device *spi) { @@ -613,20 +639,39 @@ static int __devinit wm8731_spi_probe(struct spi_device *spi) if (wm8731 == NULL) return -ENOMEM; - wm8731->control_type = SND_SOC_SPI; + wm8731->regmap = regmap_init_spi(spi, &wm8731_regmap); + if (IS_ERR(wm8731->regmap)) { + ret = PTR_ERR(wm8731->regmap); + dev_err(&spi->dev, "Failed to allocate register map: %d\n", + ret); + goto err; + } + spi_set_drvdata(spi, wm8731); ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8731, &wm8731_dai, 1); - if (ret < 0) - kfree(wm8731); + if (ret != 0) { + dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret); + goto err_regmap; + } + + return 0; + +err_regmap: + regmap_exit(wm8731->regmap); +err: + kfree(wm8731); return ret; } static int __devexit wm8731_spi_remove(struct spi_device *spi) { + struct wm8731_priv *wm8731 = spi_get_drvdata(spi); + snd_soc_unregister_codec(&spi->dev); - kfree(spi_get_drvdata(spi)); + regmap_exit(wm8731->regmap); + kfree(wm8731); return 0; } @@ -652,20 +697,38 @@ static __devinit int wm8731_i2c_probe(struct i2c_client *i2c, if (wm8731 == NULL) return -ENOMEM; + wm8731->regmap = regmap_init_i2c(i2c, &wm8731_regmap); + if (IS_ERR(wm8731->regmap)) { + ret = PTR_ERR(wm8731->regmap); + dev_err(&i2c->dev, "Failed to allocate register map: %d\n", + ret); + goto err; + } + i2c_set_clientdata(i2c, wm8731); - wm8731->control_type = SND_SOC_I2C; - ret = snd_soc_register_codec(&i2c->dev, + ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8731, &wm8731_dai, 1); - if (ret < 0) - kfree(wm8731); + if (ret != 0) { + dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); + goto err_regmap; + } + + return 0; + +err_regmap: + regmap_exit(wm8731->regmap); +err: + kfree(wm8731); return ret; } static __devexit int wm8731_i2c_remove(struct i2c_client *client) { + struct wm8731_priv *wm8731 = i2c_get_clientdata(client); snd_soc_unregister_codec(&client->dev); - kfree(i2c_get_clientdata(client)); + regmap_exit(wm8731->regmap); + kfree(wm8731); return 0; } |