diff options
Diffstat (limited to 'sound/soc/codecs/wm8974.c')
| -rw-r--r-- | sound/soc/codecs/wm8974.c | 161 |
1 files changed, 58 insertions, 103 deletions
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c index ca646a82244..0627c56fa44 100644 --- a/sound/soc/codecs/wm8974.c +++ b/sound/soc/codecs/wm8974.c @@ -3,7 +3,7 @@ * * Copyright 2006-2009 Wolfson Microelectronics PLC. * - * Author: Liam Girdwood <linux@wolfsonmicro.com> + * Author: Liam Girdwood <Liam.Girdwood@wolfsonmicro.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -17,7 +17,7 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> -#include <linux/platform_device.h> +#include <linux/regmap.h> #include <linux/slab.h> #include <sound/core.h> #include <sound/pcm.h> @@ -28,31 +28,27 @@ #include "wm8974.h" -static const u16 wm8974_reg[WM8974_CACHEREGNUM] = { - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0050, 0x0000, 0x0140, 0x0000, - 0x0000, 0x0000, 0x0000, 0x00ff, - 0x0000, 0x0000, 0x0100, 0x00ff, - 0x0000, 0x0000, 0x012c, 0x002c, - 0x002c, 0x002c, 0x002c, 0x0000, - 0x0032, 0x0000, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0038, 0x000b, 0x0032, 0x0000, - 0x0008, 0x000c, 0x0093, 0x00e9, - 0x0000, 0x0000, 0x0000, 0x0000, - 0x0003, 0x0010, 0x0000, 0x0000, - 0x0000, 0x0002, 0x0000, 0x0000, - 0x0000, 0x0000, 0x0039, 0x0000, - 0x0000, +static const struct reg_default wm8974_reg_defaults[] = { + { 0, 0x0000 }, { 1, 0x0000 }, { 2, 0x0000 }, { 3, 0x0000 }, + { 4, 0x0050 }, { 5, 0x0000 }, { 6, 0x0140 }, { 7, 0x0000 }, + { 8, 0x0000 }, { 9, 0x0000 }, { 10, 0x0000 }, { 11, 0x00ff }, + { 12, 0x0000 }, { 13, 0x0000 }, { 14, 0x0100 }, { 15, 0x00ff }, + { 16, 0x0000 }, { 17, 0x0000 }, { 18, 0x012c }, { 19, 0x002c }, + { 20, 0x002c }, { 21, 0x002c }, { 22, 0x002c }, { 23, 0x0000 }, + { 24, 0x0032 }, { 25, 0x0000 }, { 26, 0x0000 }, { 27, 0x0000 }, + { 28, 0x0000 }, { 29, 0x0000 }, { 30, 0x0000 }, { 31, 0x0000 }, + { 32, 0x0038 }, { 33, 0x000b }, { 34, 0x0032 }, { 35, 0x0000 }, + { 36, 0x0008 }, { 37, 0x000c }, { 38, 0x0093 }, { 39, 0x00e9 }, + { 40, 0x0000 }, { 41, 0x0000 }, { 42, 0x0000 }, { 43, 0x0000 }, + { 44, 0x0003 }, { 45, 0x0010 }, { 46, 0x0000 }, { 47, 0x0000 }, + { 48, 0x0000 }, { 49, 0x0002 }, { 50, 0x0000 }, { 51, 0x0000 }, + { 52, 0x0000 }, { 53, 0x0000 }, { 54, 0x0039 }, { 55, 0x0000 }, + { 56, 0x0000 }, }; #define WM8974_POWER1_BIASEN 0x08 #define WM8974_POWER1_BUFIOEN 0x04 -struct wm8974_priv { - enum snd_soc_control_type control_type; -}; - #define wm8974_reset(c) snd_soc_write(c, WM8974_RESET, 0) static const char *wm8974_companding[] = {"Off", "NC", "u-law", "A-law" }; @@ -88,8 +84,8 @@ static const struct soc_enum wm8974_enum[] = { static const char *wm8974_auxmode_text[] = { "Buffer", "Mixer" }; -static const struct soc_enum wm8974_auxmode = - SOC_ENUM_SINGLE(WM8974_INPUT, 3, 2, wm8974_auxmode_text); +static SOC_ENUM_SINGLE_DECL(wm8974_auxmode, + WM8974_INPUT, 3, wm8974_auxmode_text); static const DECLARE_TLV_DB_SCALE(digital_tlv, -12750, 50, 1); static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); @@ -118,19 +114,19 @@ SOC_ENUM("Equaliser Function", wm8974_enum[3]), SOC_ENUM("EQ1 Cut Off", wm8974_enum[4]), SOC_SINGLE_TLV("EQ1 Volume", WM8974_EQ1, 0, 24, 1, eq_tlv), -SOC_ENUM("Equaliser EQ2 Bandwith", wm8974_enum[5]), +SOC_ENUM("Equaliser EQ2 Bandwidth", wm8974_enum[5]), SOC_ENUM("EQ2 Cut Off", wm8974_enum[6]), SOC_SINGLE_TLV("EQ2 Volume", WM8974_EQ2, 0, 24, 1, eq_tlv), -SOC_ENUM("Equaliser EQ3 Bandwith", wm8974_enum[7]), +SOC_ENUM("Equaliser EQ3 Bandwidth", wm8974_enum[7]), SOC_ENUM("EQ3 Cut Off", wm8974_enum[8]), SOC_SINGLE_TLV("EQ3 Volume", WM8974_EQ3, 0, 24, 1, eq_tlv), -SOC_ENUM("Equaliser EQ4 Bandwith", wm8974_enum[9]), +SOC_ENUM("Equaliser EQ4 Bandwidth", wm8974_enum[9]), SOC_ENUM("EQ4 Cut Off", wm8974_enum[10]), SOC_SINGLE_TLV("EQ4 Volume", WM8974_EQ4, 0, 24, 1, eq_tlv), -SOC_ENUM("Equaliser EQ5 Bandwith", wm8974_enum[11]), +SOC_ENUM("Equaliser EQ5 Bandwidth", wm8974_enum[11]), SOC_ENUM("EQ5 Cut Off", wm8974_enum[12]), SOC_SINGLE_TLV("EQ5 Volume", WM8974_EQ5, 0, 24, 1, eq_tlv), @@ -226,7 +222,7 @@ SND_SOC_DAPM_MIXER("Input PGA", WM8974_POWER2, 2, 0, wm8974_inpga, SND_SOC_DAPM_MIXER("Boost Mixer", WM8974_POWER2, 4, 0, wm8974_boost_mixer, ARRAY_SIZE(wm8974_boost_mixer)), -SND_SOC_DAPM_MICBIAS("Mic Bias", WM8974_POWER1, 4, 0), +SND_SOC_DAPM_SUPPLY("Mic Bias", WM8974_POWER1, 4, 0, NULL, 0), SND_SOC_DAPM_INPUT("MICN"), SND_SOC_DAPM_INPUT("MICP"), @@ -236,7 +232,7 @@ SND_SOC_DAPM_OUTPUT("SPKOUTP"), SND_SOC_DAPM_OUTPUT("SPKOUTN"), }; -static const struct snd_soc_dapm_route audio_map[] = { +static const struct snd_soc_dapm_route wm8974_dapm_routes[] = { /* Mono output mixer */ {"Mono Mixer", "PCM Playback Switch", "DAC"}, {"Mono Mixer", "Aux Playback Switch", "Aux Input"}, @@ -270,17 +266,6 @@ static const struct snd_soc_dapm_route audio_map[] = { {"Aux Input", NULL, "AUX"}, }; -static int wm8974_add_widgets(struct snd_soc_codec *codec) -{ - struct snd_soc_dapm_context *dapm = &codec->dapm; - - snd_soc_dapm_new_controls(dapm, wm8974_dapm_widgets, - ARRAY_SIZE(wm8974_dapm_widgets)); - snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); - - return 0; -} - struct pll_ { unsigned int pre_div:1; unsigned int n:4; @@ -530,6 +515,8 @@ static int wm8974_set_bias_level(struct snd_soc_codec *codec, power1 |= WM8974_POWER1_BIASEN | WM8974_POWER1_BUFIOEN; if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { + regcache_sync(dev_get_regmap(codec->dev, NULL)); + /* Initial cap charge at VMID 5k */ snd_soc_write(codec, WM8974_POWER1, power1 | 0x3); mdelay(100); @@ -555,7 +542,7 @@ static int wm8974_set_bias_level(struct snd_soc_codec *codec, #define WM8974_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE) -static struct snd_soc_dai_ops wm8974_ops = { +static const struct snd_soc_dai_ops wm8974_ops = { .hw_params = wm8974_pcm_hw_params, .digital_mute = wm8974_mute, .set_fmt = wm8974_set_dai_fmt, @@ -581,7 +568,7 @@ static struct snd_soc_dai_driver wm8974_dai = { .symmetric_rates = 1, }; -static int wm8974_suspend(struct snd_soc_codec *codec, pm_message_t state) +static int wm8974_suspend(struct snd_soc_codec *codec) { wm8974_set_bias_level(codec, SND_SOC_BIAS_OFF); return 0; @@ -589,31 +576,23 @@ static int wm8974_suspend(struct snd_soc_codec *codec, pm_message_t state) static int wm8974_resume(struct snd_soc_codec *codec) { - int i; - u8 data[2]; - u16 *cache = codec->reg_cache; - - /* Sync reg_cache with the hardware */ - for (i = 0; i < ARRAY_SIZE(wm8974_reg); i++) { - data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); - data[1] = cache[i] & 0x00ff; - codec->hw_write(codec->control_data, data, 2); - } wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - return 0; } +static const struct regmap_config wm8974_regmap = { + .reg_bits = 7, + .val_bits = 9, + + .max_register = WM8974_MONOMIX, + .reg_defaults = wm8974_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8974_reg_defaults), +}; + static int wm8974_probe(struct snd_soc_codec *codec) { int ret = 0; - ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_I2C); - if (ret < 0) { - dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - return ret; - } - ret = wm8974_reset(codec); if (ret < 0) { dev_err(codec->dev, "Failed to issue reset\n"); @@ -621,9 +600,6 @@ static int wm8974_probe(struct snd_soc_codec *codec) } wm8974_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - snd_soc_add_controls(codec, wm8974_snd_controls, - ARRAY_SIZE(wm8974_snd_controls)); - wm8974_add_widgets(codec); return ret; } @@ -641,35 +617,35 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8974 = { .suspend = wm8974_suspend, .resume = wm8974_resume, .set_bias_level = wm8974_set_bias_level, - .reg_cache_size = ARRAY_SIZE(wm8974_reg), - .reg_word_size = sizeof(u16), - .reg_cache_default = wm8974_reg, + + .controls = wm8974_snd_controls, + .num_controls = ARRAY_SIZE(wm8974_snd_controls), + .dapm_widgets = wm8974_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wm8974_dapm_widgets), + .dapm_routes = wm8974_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(wm8974_dapm_routes), }; -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) -static __devinit int wm8974_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) +static int wm8974_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) { - struct wm8974_priv *wm8974; + struct regmap *regmap; int ret; - wm8974 = kzalloc(sizeof(struct wm8974_priv), GFP_KERNEL); - if (wm8974 == NULL) - return -ENOMEM; - - i2c_set_clientdata(i2c, wm8974); + regmap = devm_regmap_init_i2c(i2c, &wm8974_regmap); + if (IS_ERR(regmap)) + return PTR_ERR(regmap); ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8974, &wm8974_dai, 1); - if (ret < 0) - kfree(wm8974); + return ret; } -static __devexit int wm8974_i2c_remove(struct i2c_client *client) +static int wm8974_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); - kfree(i2c_get_clientdata(client)); + return 0; } @@ -681,36 +657,15 @@ MODULE_DEVICE_TABLE(i2c, wm8974_i2c_id); static struct i2c_driver wm8974_i2c_driver = { .driver = { - .name = "wm8974-codec", + .name = "wm8974", .owner = THIS_MODULE, }, .probe = wm8974_i2c_probe, - .remove = __devexit_p(wm8974_i2c_remove), + .remove = wm8974_i2c_remove, .id_table = wm8974_i2c_id, }; -#endif -static int __init wm8974_modinit(void) -{ - int ret = 0; -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - ret = i2c_add_driver(&wm8974_i2c_driver); - if (ret != 0) { - printk(KERN_ERR "Failed to register wm8974 I2C driver: %d\n", - ret); - } -#endif - return ret; -} -module_init(wm8974_modinit); - -static void __exit wm8974_exit(void) -{ -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - i2c_del_driver(&wm8974_i2c_driver); -#endif -} -module_exit(wm8974_exit); +module_i2c_driver(wm8974_i2c_driver); MODULE_DESCRIPTION("ASoC WM8974 driver"); MODULE_AUTHOR("Liam Girdwood"); |