diff options
Diffstat (limited to 'sound/soc/codecs/wm8711.c')
| -rw-r--r-- | sound/soc/codecs/wm8711.c | 159 |
1 files changed, 83 insertions, 76 deletions
diff --git a/sound/soc/codecs/wm8711.c b/sound/soc/codecs/wm8711.c index 97c30382d3f..b0fbcb377ba 100644 --- a/sound/soc/codecs/wm8711.c +++ b/sound/soc/codecs/wm8711.c @@ -3,7 +3,7 @@ * * Copyright 2006 Wolfson Microelectronics * - * Author: Mike Arthur <linux@wolfsonmicro.com> + * Author: Mike Arthur <Mike.Arthur@wolfsonmicro.com> * * Based on wm8731.c by Richard Purdie * @@ -18,9 +18,10 @@ #include <linux/delay.h> #include <linux/pm.h> #include <linux/i2c.h> -#include <linux/platform_device.h> +#include <linux/regmap.h> #include <linux/spi/spi.h> #include <linux/slab.h> +#include <linux/of_device.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -32,7 +33,7 @@ /* codec private data */ struct wm8711_priv { - enum snd_soc_control_type bus_type; + struct regmap *regmap; unsigned int sysclk; }; @@ -42,11 +43,21 @@ struct wm8711_priv { * using 2 wire for device control, so we cache them instead. * There is no point in caching the reset register */ -static const u16 wm8711_reg[WM8711_CACHEREGNUM] = { - 0x0079, 0x0079, 0x000a, 0x0008, - 0x009f, 0x000a, 0x0000, 0x0000 +static const struct reg_default wm8711_reg_defaults[] = { + { 0, 0x0079 }, { 1, 0x0079 }, { 2, 0x000a }, { 3, 0x0008 }, + { 4, 0x009f }, { 5, 0x000a }, { 6, 0x0000 }, { 7, 0x0000 }, }; +static bool wm8711_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case WM8711_RESET: + return true; + default: + return false; + } +} + #define wm8711_reset(c) snd_soc_write(c, WM8711_RESET, 0) static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1); @@ -77,7 +88,7 @@ SND_SOC_DAPM_OUTPUT("ROUT"), SND_SOC_DAPM_OUTPUT("RHPOUT"), }; -static const struct snd_soc_dapm_route intercon[] = { +static const struct snd_soc_dapm_route wm8711_intercon[] = { /* output mixer */ {"Output Mixer", "Line Bypass Switch", "Line Input"}, {"Output Mixer", "HiFi Playback Switch", "DAC"}, @@ -89,17 +100,6 @@ static const struct snd_soc_dapm_route intercon[] = { {"LOUT", NULL, "Output Mixer"}, }; -static int wm8711_add_widgets(struct snd_soc_codec *codec) -{ - struct snd_soc_dapm_context *dapm = &codec->dapm; - - snd_soc_dapm_new_controls(dapm, wm8711_dapm_widgets, - ARRAY_SIZE(wm8711_dapm_widgets)); - snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon)); - - return 0; -} - struct _coeff_div { u32 mclk; u32 rate; @@ -161,7 +161,7 @@ static int wm8711_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_codec *codec = dai->codec; struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); - u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfffc; + u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0xfff3; int i = get_coeff(wm8711->sysclk, params_rate(params)); u16 srate = (coeff_div[i].sr << 2) | (coeff_div[i].bosr << 1) | coeff_div[i].usb; @@ -201,7 +201,7 @@ static void wm8711_shutdown(struct snd_pcm_substream *substream, struct snd_soc_codec *codec = dai->codec; /* deactivate */ - if (!codec->active) { + if (!snd_soc_codec_is_active(codec)) { udelay(50); snd_soc_write(codec, WM8711_ACTIVE, 0x0); } @@ -242,7 +242,7 @@ static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) { struct snd_soc_codec *codec = codec_dai->codec; - u16 iface = 0; + u16 iface = snd_soc_read(codec, WM8711_IFACE) & 0x000c; /* set master/slave audio interface */ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { @@ -297,10 +297,10 @@ static int wm8711_set_dai_fmt(struct snd_soc_dai *codec_dai, return 0; } - static int wm8711_set_bias_level(struct snd_soc_codec *codec, enum snd_soc_bias_level level) { + struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); u16 reg = snd_soc_read(codec, WM8711_PWR) & 0xff7f; switch (level) { @@ -310,6 +310,9 @@ static int wm8711_set_bias_level(struct snd_soc_codec *codec, case SND_SOC_BIAS_PREPARE: break; case SND_SOC_BIAS_STANDBY: + if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) + regcache_sync(wm8711->regmap); + snd_soc_write(codec, WM8711_PWR, reg | 0x0040); break; case SND_SOC_BIAS_OFF: @@ -326,7 +329,7 @@ static int wm8711_set_bias_level(struct snd_soc_codec *codec, #define WM8711_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ SNDRV_PCM_FMTBIT_S24_LE) -static struct snd_soc_dai_ops wm8711_ops = { +static const struct snd_soc_dai_ops wm8711_ops = { .prepare = wm8711_pcm_prepare, .hw_params = wm8711_hw_params, .shutdown = wm8711_shutdown, @@ -347,7 +350,7 @@ static struct snd_soc_dai_driver wm8711_dai = { .ops = &wm8711_ops, }; -static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state) +static int wm8711_suspend(struct snd_soc_codec *codec) { snd_soc_write(codec, WM8711_ACTIVE, 0x0); wm8711_set_bias_level(codec, SND_SOC_BIAS_OFF); @@ -356,31 +359,13 @@ static int wm8711_suspend(struct snd_soc_codec *codec, pm_message_t state) static int wm8711_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(wm8711_reg); i++) { - data[0] = (i << 1) | ((cache[i] >> 8) & 0x0001); - data[1] = cache[i] & 0x00ff; - codec->hw_write(codec->control_data, data, 2); - } wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - return 0; } static int wm8711_probe(struct snd_soc_codec *codec) { - struct wm8711_priv *wm8711 = snd_soc_codec_get_drvdata(codec); - int ret, reg; - - ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8711->bus_type); - if (ret < 0) { - dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret); - return ret; - } + int ret; ret = wm8711_reset(codec); if (ret < 0) { @@ -391,14 +376,8 @@ static int wm8711_probe(struct snd_soc_codec *codec) wm8711_set_bias_level(codec, SND_SOC_BIAS_STANDBY); /* Latch the update bits */ - reg = snd_soc_read(codec, WM8711_LOUT1V); - snd_soc_write(codec, WM8711_LOUT1V, reg | 0x0100); - reg = snd_soc_read(codec, WM8711_ROUT1V); - snd_soc_write(codec, WM8711_ROUT1V, reg | 0x0100); - - snd_soc_add_controls(codec, wm8711_snd_controls, - ARRAY_SIZE(wm8711_snd_controls)); - wm8711_add_widgets(codec); + snd_soc_update_bits(codec, WM8711_LOUT1V, 0x0100, 0x0100); + snd_soc_update_bits(codec, WM8711_ROUT1V, 0x0100, 0x0100); return ret; @@ -417,73 +396,100 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8711 = { .suspend = wm8711_suspend, .resume = wm8711_resume, .set_bias_level = wm8711_set_bias_level, - .reg_cache_size = ARRAY_SIZE(wm8711_reg), - .reg_word_size = sizeof(u16), - .reg_cache_default = wm8711_reg, + .controls = wm8711_snd_controls, + .num_controls = ARRAY_SIZE(wm8711_snd_controls), + .dapm_widgets = wm8711_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(wm8711_dapm_widgets), + .dapm_routes = wm8711_intercon, + .num_dapm_routes = ARRAY_SIZE(wm8711_intercon), +}; + +static const struct of_device_id wm8711_of_match[] = { + { .compatible = "wlf,wm8711", }, + { } +}; +MODULE_DEVICE_TABLE(of, wm8711_of_match); + +static const struct regmap_config wm8711_regmap = { + .reg_bits = 7, + .val_bits = 9, + .max_register = WM8711_RESET, + + .reg_defaults = wm8711_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(wm8711_reg_defaults), + .cache_type = REGCACHE_RBTREE, + + .volatile_reg = wm8711_volatile, }; #if defined(CONFIG_SPI_MASTER) -static int __devinit wm8711_spi_probe(struct spi_device *spi) +static int wm8711_spi_probe(struct spi_device *spi) { struct wm8711_priv *wm8711; int ret; - wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); + wm8711 = devm_kzalloc(&spi->dev, sizeof(struct wm8711_priv), + GFP_KERNEL); if (wm8711 == NULL) return -ENOMEM; + wm8711->regmap = devm_regmap_init_spi(spi, &wm8711_regmap); + if (IS_ERR(wm8711->regmap)) + return PTR_ERR(wm8711->regmap); + spi_set_drvdata(spi, wm8711); - wm8711->bus_type = SND_SOC_SPI; ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8711, &wm8711_dai, 1); - if (ret < 0) - kfree(wm8711); + return ret; } -static int __devexit wm8711_spi_remove(struct spi_device *spi) +static int wm8711_spi_remove(struct spi_device *spi) { snd_soc_unregister_codec(&spi->dev); - kfree(spi_get_drvdata(spi)); + return 0; } static struct spi_driver wm8711_spi_driver = { .driver = { - .name = "wm8711-codec", + .name = "wm8711", .owner = THIS_MODULE, + .of_match_table = wm8711_of_match, }, .probe = wm8711_spi_probe, - .remove = __devexit_p(wm8711_spi_remove), + .remove = wm8711_spi_remove, }; #endif /* CONFIG_SPI_MASTER */ -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) -static __devinit int wm8711_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) +#if IS_ENABLED(CONFIG_I2C) +static int wm8711_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) { struct wm8711_priv *wm8711; int ret; - wm8711 = kzalloc(sizeof(struct wm8711_priv), GFP_KERNEL); + wm8711 = devm_kzalloc(&client->dev, sizeof(struct wm8711_priv), + GFP_KERNEL); if (wm8711 == NULL) return -ENOMEM; + wm8711->regmap = devm_regmap_init_i2c(client, &wm8711_regmap); + if (IS_ERR(wm8711->regmap)) + return PTR_ERR(wm8711->regmap); + i2c_set_clientdata(client, wm8711); - wm8711->bus_type = SND_SOC_I2C; ret = snd_soc_register_codec(&client->dev, &soc_codec_dev_wm8711, &wm8711_dai, 1); - if (ret < 0) - kfree(wm8711); + return ret; } -static __devexit int wm8711_i2c_remove(struct i2c_client *client) +static int wm8711_i2c_remove(struct i2c_client *client) { snd_soc_unregister_codec(&client->dev); - kfree(i2c_get_clientdata(client)); return 0; } @@ -495,11 +501,12 @@ MODULE_DEVICE_TABLE(i2c, wm8711_i2c_id); static struct i2c_driver wm8711_i2c_driver = { .driver = { - .name = "wm8711-codec", + .name = "wm8711", .owner = THIS_MODULE, + .of_match_table = wm8711_of_match, }, .probe = wm8711_i2c_probe, - .remove = __devexit_p(wm8711_i2c_remove), + .remove = wm8711_i2c_remove, .id_table = wm8711_i2c_id, }; #endif @@ -507,7 +514,7 @@ static struct i2c_driver wm8711_i2c_driver = { static int __init wm8711_modinit(void) { int ret; -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +#if IS_ENABLED(CONFIG_I2C) ret = i2c_add_driver(&wm8711_i2c_driver); if (ret != 0) { printk(KERN_ERR "Failed to register WM8711 I2C driver: %d\n", @@ -527,7 +534,7 @@ module_init(wm8711_modinit); static void __exit wm8711_exit(void) { -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) +#if IS_ENABLED(CONFIG_I2C) i2c_del_driver(&wm8711_i2c_driver); #endif #if defined(CONFIG_SPI_MASTER) |