diff options
Diffstat (limited to 'sound/soc/codecs/ak4535.c')
| -rw-r--r-- | sound/soc/codecs/ak4535.c | 98 |
1 files changed, 58 insertions, 40 deletions
diff --git a/sound/soc/codecs/ak4535.c b/sound/soc/codecs/ak4535.c index 9e809e0..838ae8b 100644 --- a/sound/soc/codecs/ak4535.c +++ b/sound/soc/codecs/ak4535.c @@ -18,6 +18,7 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> +#include <linux/regmap.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> @@ -27,24 +28,43 @@ #include "ak4535.h" -#define AK4535_VERSION "0.3" - /* codec private data */ struct ak4535_priv { + struct regmap *regmap; unsigned int sysclk; - enum snd_soc_control_type control_type; }; /* * ak4535 register cache */ -static const u8 ak4535_reg[AK4535_CACHEREGNUM] = { - 0x00, 0x80, 0x00, 0x03, - 0x02, 0x00, 0x11, 0x01, - 0x00, 0x40, 0x36, 0x10, - 0x00, 0x00, 0x57, 0x00, +static const struct reg_default ak4535_reg_defaults[] = { + { 0, 0x00 }, + { 1, 0x80 }, + { 2, 0x00 }, + { 3, 0x03 }, + { 4, 0x02 }, + { 5, 0x00 }, + { 6, 0x11 }, + { 7, 0x01 }, + { 8, 0x00 }, + { 9, 0x40 }, + { 10, 0x36 }, + { 11, 0x10 }, + { 12, 0x00 }, + { 13, 0x00 }, + { 14, 0x57 }, }; +static bool ak4535_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case AK4535_STATUS: + return true; + default: + return false; + } +} + static const char *ak4535_mono_gain[] = {"+6dB", "-17dB"}; static const char *ak4535_mono_out[] = {"(L + R)/2", "Hi-Z"}; static const char *ak4535_hp_out[] = {"Stereo", "Mono"}; @@ -372,9 +392,8 @@ static int ak4535_probe(struct snd_soc_codec *codec) struct ak4535_priv *ak4535 = snd_soc_codec_get_drvdata(codec); int ret; - printk(KERN_INFO "AK4535 Audio Codec %s", AK4535_VERSION); - - ret = snd_soc_codec_set_cache_io(codec, 8, 8, ak4535->control_type); + codec->control_data = ak4535->regmap; + ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP); if (ret < 0) { dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); return ret; @@ -382,7 +401,7 @@ static int ak4535_probe(struct snd_soc_codec *codec) /* power on device */ ak4535_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - snd_soc_add_controls(codec, ak4535_snd_controls, + snd_soc_add_codec_controls(codec, ak4535_snd_controls, ARRAY_SIZE(ak4535_snd_controls)); return 0; } @@ -394,22 +413,30 @@ static int ak4535_remove(struct snd_soc_codec *codec) return 0; } +static const struct regmap_config ak4535_regmap = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = AK4535_STATUS, + .volatile_reg = ak4535_volatile, + + .cache_type = REGCACHE_RBTREE, + .reg_defaults = ak4535_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(ak4535_reg_defaults), +}; + static struct snd_soc_codec_driver soc_codec_dev_ak4535 = { .probe = ak4535_probe, .remove = ak4535_remove, .suspend = ak4535_suspend, .resume = ak4535_resume, .set_bias_level = ak4535_set_bias_level, - .reg_cache_size = ARRAY_SIZE(ak4535_reg), - .reg_word_size = sizeof(u8), - .reg_cache_default = ak4535_reg, .dapm_widgets = ak4535_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(ak4535_dapm_widgets), .dapm_routes = ak4535_audio_map, .num_dapm_routes = ARRAY_SIZE(ak4535_audio_map), }; -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) static __devinit int ak4535_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { @@ -421,17 +448,29 @@ static __devinit int ak4535_i2c_probe(struct i2c_client *i2c, if (ak4535 == NULL) return -ENOMEM; + ak4535->regmap = regmap_init_i2c(i2c, &ak4535_regmap); + if (IS_ERR(ak4535->regmap)) { + ret = PTR_ERR(ak4535->regmap); + dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret); + return ret; + } + i2c_set_clientdata(i2c, ak4535); - ak4535->control_type = SND_SOC_I2C; ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_ak4535, &ak4535_dai, 1); + if (ret != 0) + regmap_exit(ak4535->regmap); + return ret; } static __devexit int ak4535_i2c_remove(struct i2c_client *client) { + struct ak4535_priv *ak4535 = i2c_get_clientdata(client); + snd_soc_unregister_codec(&client->dev); + regmap_exit(ak4535->regmap); return 0; } @@ -443,36 +482,15 @@ MODULE_DEVICE_TABLE(i2c, ak4535_i2c_id); static struct i2c_driver ak4535_i2c_driver = { .driver = { - .name = "ak4535-codec", + .name = "ak4535", .owner = THIS_MODULE, }, .probe = ak4535_i2c_probe, .remove = __devexit_p(ak4535_i2c_remove), .id_table = ak4535_i2c_id, }; -#endif -static int __init ak4535_modinit(void) -{ - int ret = 0; -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - ret = i2c_add_driver(&ak4535_i2c_driver); - if (ret != 0) { - printk(KERN_ERR "Failed to register AK4535 I2C driver: %d\n", - ret); - } -#endif - return ret; -} -module_init(ak4535_modinit); - -static void __exit ak4535_exit(void) -{ -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - i2c_del_driver(&ak4535_i2c_driver); -#endif -} -module_exit(ak4535_exit); +module_i2c_driver(ak4535_i2c_driver); MODULE_DESCRIPTION("Soc AK4535 driver"); MODULE_AUTHOR("Richard Purdie"); |