diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/soc/codecs/wm8804.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/soc/codecs/wm8804.c | 841 |
1 files changed, 0 insertions, 841 deletions
diff --git a/ANDROID_3.4.5/sound/soc/codecs/wm8804.c b/ANDROID_3.4.5/sound/soc/codecs/wm8804.c deleted file mode 100644 index 6bd1b767..00000000 --- a/ANDROID_3.4.5/sound/soc/codecs/wm8804.c +++ /dev/null @@ -1,841 +0,0 @@ -/* - * wm8804.c -- WM8804 S/PDIF transceiver driver - * - * Copyright 2010 Wolfson Microelectronics plc - * - * Author: Dimitris Papastamos <dp@opensource.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 - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/moduleparam.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/pm.h> -#include <linux/i2c.h> -#include <linux/of_device.h> -#include <linux/spi/spi.h> -#include <linux/regmap.h> -#include <linux/regulator/consumer.h> -#include <linux/slab.h> -#include <sound/core.h> -#include <sound/pcm.h> -#include <sound/pcm_params.h> -#include <sound/soc.h> -#include <sound/initval.h> -#include <sound/tlv.h> - -#include "wm8804.h" - -#define WM8804_NUM_SUPPLIES 2 -static const char *wm8804_supply_names[WM8804_NUM_SUPPLIES] = { - "PVDD", - "DVDD" -}; - -static const struct reg_default wm8804_reg_defaults[] = { - { 3, 0x21 }, /* R3 - PLL1 */ - { 4, 0xFD }, /* R4 - PLL2 */ - { 5, 0x36 }, /* R5 - PLL3 */ - { 6, 0x07 }, /* R6 - PLL4 */ - { 7, 0x16 }, /* R7 - PLL5 */ - { 8, 0x18 }, /* R8 - PLL6 */ - { 9, 0xFF }, /* R9 - SPDMODE */ - { 10, 0x00 }, /* R10 - INTMASK */ - { 18, 0x00 }, /* R18 - SPDTX1 */ - { 19, 0x00 }, /* R19 - SPDTX2 */ - { 20, 0x00 }, /* R20 - SPDTX3 */ - { 21, 0x71 }, /* R21 - SPDTX4 */ - { 22, 0x0B }, /* R22 - SPDTX5 */ - { 23, 0x70 }, /* R23 - GPO0 */ - { 24, 0x57 }, /* R24 - GPO1 */ - { 26, 0x42 }, /* R26 - GPO2 */ - { 27, 0x06 }, /* R27 - AIFTX */ - { 28, 0x06 }, /* R28 - AIFRX */ - { 29, 0x80 }, /* R29 - SPDRX1 */ - { 30, 0x07 }, /* R30 - PWRDN */ -}; - -struct wm8804_priv { - struct regmap *regmap; - struct regulator_bulk_data supplies[WM8804_NUM_SUPPLIES]; - struct notifier_block disable_nb[WM8804_NUM_SUPPLIES]; -}; - -static int txsrc_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol); - -static int txsrc_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol); - -/* - * We can't use the same notifier block for more than one supply and - * there's no way I can see to get from a callback to the caller - * except container_of(). - */ -#define WM8804_REGULATOR_EVENT(n) \ -static int wm8804_regulator_event_##n(struct notifier_block *nb, \ - unsigned long event, void *data) \ -{ \ - struct wm8804_priv *wm8804 = container_of(nb, struct wm8804_priv, \ - disable_nb[n]); \ - if (event & REGULATOR_EVENT_DISABLE) { \ - regcache_mark_dirty(wm8804->regmap); \ - } \ - return 0; \ -} - -WM8804_REGULATOR_EVENT(0) -WM8804_REGULATOR_EVENT(1) - -static const char *txsrc_text[] = { "S/PDIF RX", "AIF" }; -static const SOC_ENUM_SINGLE_EXT_DECL(txsrc, txsrc_text); - -static const struct snd_kcontrol_new wm8804_snd_controls[] = { - SOC_ENUM_EXT("Input Source", txsrc, txsrc_get, txsrc_put), - SOC_SINGLE("TX Playback Switch", WM8804_PWRDN, 2, 1, 1), - SOC_SINGLE("AIF Playback Switch", WM8804_PWRDN, 4, 1, 1) -}; - -static int txsrc_get(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec; - unsigned int src; - - codec = snd_kcontrol_chip(kcontrol); - src = snd_soc_read(codec, WM8804_SPDTX4); - if (src & 0x40) - ucontrol->value.integer.value[0] = 1; - else - ucontrol->value.integer.value[0] = 0; - - return 0; -} - -static int txsrc_put(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_soc_codec *codec; - unsigned int src, txpwr; - - codec = snd_kcontrol_chip(kcontrol); - - if (ucontrol->value.integer.value[0] != 0 - && ucontrol->value.integer.value[0] != 1) - return -EINVAL; - - src = snd_soc_read(codec, WM8804_SPDTX4); - switch ((src & 0x40) >> 6) { - case 0: - if (!ucontrol->value.integer.value[0]) - return 0; - break; - case 1: - if (ucontrol->value.integer.value[1]) - return 0; - break; - } - - /* save the current power state of the transmitter */ - txpwr = snd_soc_read(codec, WM8804_PWRDN) & 0x4; - /* power down the transmitter */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, 0x4); - /* set the tx source */ - snd_soc_update_bits(codec, WM8804_SPDTX4, 0x40, - ucontrol->value.integer.value[0] << 6); - - if (ucontrol->value.integer.value[0]) { - /* power down the receiver */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x2, 0x2); - /* power up the AIF */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x10, 0); - } else { - /* don't power down the AIF -- may be used as an output */ - /* power up the receiver */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x2, 0); - } - - /* restore the transmitter's configuration */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x4, txpwr); - - return 0; -} - -static bool wm8804_volatile(struct device *dev, unsigned int reg) -{ - switch (reg) { - case WM8804_RST_DEVID1: - case WM8804_DEVID2: - case WM8804_DEVREV: - case WM8804_INTSTAT: - case WM8804_SPDSTAT: - case WM8804_RXCHAN1: - case WM8804_RXCHAN2: - case WM8804_RXCHAN3: - case WM8804_RXCHAN4: - case WM8804_RXCHAN5: - return true; - default: - return false; - } -} - -static int wm8804_reset(struct snd_soc_codec *codec) -{ - return snd_soc_write(codec, WM8804_RST_DEVID1, 0x0); -} - -static int wm8804_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) -{ - struct snd_soc_codec *codec; - u16 format, master, bcp, lrp; - - codec = dai->codec; - - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - format = 0x2; - break; - case SND_SOC_DAIFMT_RIGHT_J: - format = 0x0; - break; - case SND_SOC_DAIFMT_LEFT_J: - format = 0x1; - break; - case SND_SOC_DAIFMT_DSP_A: - case SND_SOC_DAIFMT_DSP_B: - format = 0x3; - break; - default: - dev_err(dai->dev, "Unknown dai format\n"); - return -EINVAL; - } - - /* set data format */ - snd_soc_update_bits(codec, WM8804_AIFTX, 0x3, format); - snd_soc_update_bits(codec, WM8804_AIFRX, 0x3, format); - - switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - master = 1; - break; - case SND_SOC_DAIFMT_CBS_CFS: - master = 0; - break; - default: - dev_err(dai->dev, "Unknown master/slave configuration\n"); - return -EINVAL; - } - - /* set master/slave mode */ - snd_soc_update_bits(codec, WM8804_AIFRX, 0x40, master << 6); - - bcp = lrp = 0; - switch (fmt & SND_SOC_DAIFMT_INV_MASK) { - case SND_SOC_DAIFMT_NB_NF: - break; - case SND_SOC_DAIFMT_IB_IF: - bcp = lrp = 1; - break; - case SND_SOC_DAIFMT_IB_NF: - bcp = 1; - break; - case SND_SOC_DAIFMT_NB_IF: - lrp = 1; - break; - default: - dev_err(dai->dev, "Unknown polarity configuration\n"); - return -EINVAL; - } - - /* set frame inversion */ - snd_soc_update_bits(codec, WM8804_AIFTX, 0x10 | 0x20, - (bcp << 4) | (lrp << 5)); - snd_soc_update_bits(codec, WM8804_AIFRX, 0x10 | 0x20, - (bcp << 4) | (lrp << 5)); - return 0; -} - -static int wm8804_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct snd_soc_codec *codec; - u16 blen; - - codec = dai->codec; - - switch (params_format(params)) { - case SNDRV_PCM_FORMAT_S16_LE: - blen = 0x0; - break; - case SNDRV_PCM_FORMAT_S20_3LE: - blen = 0x1; - break; - case SNDRV_PCM_FORMAT_S24_LE: - blen = 0x2; - break; - default: - dev_err(dai->dev, "Unsupported word length: %u\n", - params_format(params)); - return -EINVAL; - } - - /* set word length */ - snd_soc_update_bits(codec, WM8804_AIFTX, 0xc, blen << 2); - snd_soc_update_bits(codec, WM8804_AIFRX, 0xc, blen << 2); - - return 0; -} - -struct pll_div { - u32 prescale:1; - u32 mclkdiv:1; - u32 freqmode:2; - u32 n:4; - u32 k:22; -}; - -/* PLL rate to output rate divisions */ -static struct { - unsigned int div; - unsigned int freqmode; - unsigned int mclkdiv; -} post_table[] = { - { 2, 0, 0 }, - { 4, 0, 1 }, - { 4, 1, 0 }, - { 8, 1, 1 }, - { 8, 2, 0 }, - { 16, 2, 1 }, - { 12, 3, 0 }, - { 24, 3, 1 } -}; - -#define FIXED_PLL_SIZE ((1ULL << 22) * 10) -static int pll_factors(struct pll_div *pll_div, unsigned int target, - unsigned int source) -{ - u64 Kpart; - unsigned long int K, Ndiv, Nmod, tmp; - int i; - - /* - * Scale the output frequency up; the PLL should run in the - * region of 90-100MHz. - */ - for (i = 0; i < ARRAY_SIZE(post_table); i++) { - tmp = target * post_table[i].div; - if (tmp >= 90000000 && tmp <= 100000000) { - pll_div->freqmode = post_table[i].freqmode; - pll_div->mclkdiv = post_table[i].mclkdiv; - target *= post_table[i].div; - break; - } - } - - if (i == ARRAY_SIZE(post_table)) { - pr_err("%s: Unable to scale output frequency: %uHz\n", - __func__, target); - return -EINVAL; - } - - pll_div->prescale = 0; - Ndiv = target / source; - if (Ndiv < 5) { - source >>= 1; - pll_div->prescale = 1; - Ndiv = target / source; - } - - if (Ndiv < 5 || Ndiv > 13) { - pr_err("%s: WM8804 N value is not within the recommended range: %lu\n", - __func__, Ndiv); - return -EINVAL; - } - pll_div->n = Ndiv; - - Nmod = target % source; - Kpart = FIXED_PLL_SIZE * (u64)Nmod; - - do_div(Kpart, source); - - K = Kpart & 0xffffffff; - if ((K % 10) >= 5) - K += 5; - K /= 10; - pll_div->k = K; - - return 0; -} - -static int wm8804_set_pll(struct snd_soc_dai *dai, int pll_id, - int source, unsigned int freq_in, - unsigned int freq_out) -{ - struct snd_soc_codec *codec; - - codec = dai->codec; - if (!freq_in || !freq_out) { - /* disable the PLL */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x1, 0x1); - return 0; - } else { - int ret; - struct pll_div pll_div; - - ret = pll_factors(&pll_div, freq_out, freq_in); - if (ret) - return ret; - - /* power down the PLL before reprogramming it */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x1, 0x1); - - if (!freq_in || !freq_out) - return 0; - - /* set PLLN and PRESCALE */ - snd_soc_update_bits(codec, WM8804_PLL4, 0xf | 0x10, - pll_div.n | (pll_div.prescale << 4)); - /* set mclkdiv and freqmode */ - snd_soc_update_bits(codec, WM8804_PLL5, 0x3 | 0x8, - pll_div.freqmode | (pll_div.mclkdiv << 3)); - /* set PLLK */ - snd_soc_write(codec, WM8804_PLL1, pll_div.k & 0xff); - snd_soc_write(codec, WM8804_PLL2, (pll_div.k >> 8) & 0xff); - snd_soc_write(codec, WM8804_PLL3, pll_div.k >> 16); - - /* power up the PLL */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x1, 0); - } - - return 0; -} - -static int wm8804_set_sysclk(struct snd_soc_dai *dai, - int clk_id, unsigned int freq, int dir) -{ - struct snd_soc_codec *codec; - - codec = dai->codec; - - switch (clk_id) { - case WM8804_TX_CLKSRC_MCLK: - if ((freq >= 10000000 && freq <= 14400000) - || (freq >= 16280000 && freq <= 27000000)) - snd_soc_update_bits(codec, WM8804_PLL6, 0x80, 0x80); - else { - dev_err(dai->dev, "OSCCLOCK is not within the " - "recommended range: %uHz\n", freq); - return -EINVAL; - } - break; - case WM8804_TX_CLKSRC_PLL: - snd_soc_update_bits(codec, WM8804_PLL6, 0x80, 0); - break; - case WM8804_CLKOUT_SRC_CLK1: - snd_soc_update_bits(codec, WM8804_PLL6, 0x8, 0); - break; - case WM8804_CLKOUT_SRC_OSCCLK: - snd_soc_update_bits(codec, WM8804_PLL6, 0x8, 0x8); - break; - default: - dev_err(dai->dev, "Unknown clock source: %d\n", clk_id); - return -EINVAL; - } - - return 0; -} - -static int wm8804_set_clkdiv(struct snd_soc_dai *dai, - int div_id, int div) -{ - struct snd_soc_codec *codec; - - codec = dai->codec; - switch (div_id) { - case WM8804_CLKOUT_DIV: - snd_soc_update_bits(codec, WM8804_PLL5, 0x30, - (div & 0x3) << 4); - break; - default: - dev_err(dai->dev, "Unknown clock divider: %d\n", div_id); - return -EINVAL; - } - return 0; -} - -static int wm8804_set_bias_level(struct snd_soc_codec *codec, - enum snd_soc_bias_level level) -{ - int ret; - struct wm8804_priv *wm8804; - - wm8804 = snd_soc_codec_get_drvdata(codec); - switch (level) { - case SND_SOC_BIAS_ON: - break; - case SND_SOC_BIAS_PREPARE: - /* power up the OSC and the PLL */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0); - break; - case SND_SOC_BIAS_STANDBY: - if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) { - ret = regulator_bulk_enable(ARRAY_SIZE(wm8804->supplies), - wm8804->supplies); - if (ret) { - dev_err(codec->dev, - "Failed to enable supplies: %d\n", - ret); - return ret; - } - regcache_sync(wm8804->regmap); - } - /* power down the OSC and the PLL */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0x9); - break; - case SND_SOC_BIAS_OFF: - /* power down the OSC and the PLL */ - snd_soc_update_bits(codec, WM8804_PWRDN, 0x9, 0x9); - regulator_bulk_disable(ARRAY_SIZE(wm8804->supplies), - wm8804->supplies); - break; - } - - codec->dapm.bias_level = level; - return 0; -} - -#ifdef CONFIG_PM -static int wm8804_suspend(struct snd_soc_codec *codec) -{ - wm8804_set_bias_level(codec, SND_SOC_BIAS_OFF); - return 0; -} - -static int wm8804_resume(struct snd_soc_codec *codec) -{ - wm8804_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - return 0; -} -#else -#define wm8804_suspend NULL -#define wm8804_resume NULL -#endif - -static int wm8804_remove(struct snd_soc_codec *codec) -{ - struct wm8804_priv *wm8804; - int i; - - wm8804 = snd_soc_codec_get_drvdata(codec); - wm8804_set_bias_level(codec, SND_SOC_BIAS_OFF); - - for (i = 0; i < ARRAY_SIZE(wm8804->supplies); ++i) - regulator_unregister_notifier(wm8804->supplies[i].consumer, - &wm8804->disable_nb[i]); - regulator_bulk_free(ARRAY_SIZE(wm8804->supplies), wm8804->supplies); - return 0; -} - -static int wm8804_probe(struct snd_soc_codec *codec) -{ - struct wm8804_priv *wm8804; - int i, id1, id2, ret; - - wm8804 = snd_soc_codec_get_drvdata(codec); - - codec->control_data = wm8804->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; - } - - for (i = 0; i < ARRAY_SIZE(wm8804->supplies); i++) - wm8804->supplies[i].supply = wm8804_supply_names[i]; - - ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8804->supplies), - wm8804->supplies); - if (ret) { - dev_err(codec->dev, "Failed to request supplies: %d\n", ret); - return ret; - } - - wm8804->disable_nb[0].notifier_call = wm8804_regulator_event_0; - wm8804->disable_nb[1].notifier_call = wm8804_regulator_event_1; - - /* This should really be moved into the regulator core */ - for (i = 0; i < ARRAY_SIZE(wm8804->supplies); i++) { - ret = regulator_register_notifier(wm8804->supplies[i].consumer, - &wm8804->disable_nb[i]); - if (ret != 0) { - dev_err(codec->dev, - "Failed to register regulator notifier: %d\n", - ret); - } - } - - ret = regulator_bulk_enable(ARRAY_SIZE(wm8804->supplies), - wm8804->supplies); - if (ret) { - dev_err(codec->dev, "Failed to enable supplies: %d\n", ret); - goto err_reg_get; - } - - id1 = snd_soc_read(codec, WM8804_RST_DEVID1); - if (id1 < 0) { - dev_err(codec->dev, "Failed to read device ID: %d\n", id1); - ret = id1; - goto err_reg_enable; - } - - id2 = snd_soc_read(codec, WM8804_DEVID2); - if (id2 < 0) { - dev_err(codec->dev, "Failed to read device ID: %d\n", id2); - ret = id2; - goto err_reg_enable; - } - - id2 = (id2 << 8) | id1; - - if (id2 != 0x8805) { - dev_err(codec->dev, "Invalid device ID: %#x\n", id2); - ret = -EINVAL; - goto err_reg_enable; - } - - ret = snd_soc_read(codec, WM8804_DEVREV); - if (ret < 0) { - dev_err(codec->dev, "Failed to read device revision: %d\n", - ret); - goto err_reg_enable; - } - dev_info(codec->dev, "revision %c\n", ret + 'A'); - - ret = wm8804_reset(codec); - if (ret < 0) { - dev_err(codec->dev, "Failed to issue reset: %d\n", ret); - goto err_reg_enable; - } - - wm8804_set_bias_level(codec, SND_SOC_BIAS_STANDBY); - - return 0; - -err_reg_enable: - regulator_bulk_disable(ARRAY_SIZE(wm8804->supplies), wm8804->supplies); -err_reg_get: - regulator_bulk_free(ARRAY_SIZE(wm8804->supplies), wm8804->supplies); - return ret; -} - -static const struct snd_soc_dai_ops wm8804_dai_ops = { - .hw_params = wm8804_hw_params, - .set_fmt = wm8804_set_fmt, - .set_sysclk = wm8804_set_sysclk, - .set_clkdiv = wm8804_set_clkdiv, - .set_pll = wm8804_set_pll -}; - -#define WM8804_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ - SNDRV_PCM_FMTBIT_S24_LE) - -#define WM8804_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \ - SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 | \ - SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 | \ - SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000) - -static struct snd_soc_dai_driver wm8804_dai = { - .name = "wm8804-spdif", - .playback = { - .stream_name = "Playback", - .channels_min = 2, - .channels_max = 2, - .rates = WM8804_RATES, - .formats = WM8804_FORMATS, - }, - .capture = { - .stream_name = "Capture", - .channels_min = 2, - .channels_max = 2, - .rates = WM8804_RATES, - .formats = WM8804_FORMATS, - }, - .ops = &wm8804_dai_ops, - .symmetric_rates = 1 -}; - -static struct snd_soc_codec_driver soc_codec_dev_wm8804 = { - .probe = wm8804_probe, - .remove = wm8804_remove, - .suspend = wm8804_suspend, - .resume = wm8804_resume, - .set_bias_level = wm8804_set_bias_level, - .idle_bias_off = true, - - .controls = wm8804_snd_controls, - .num_controls = ARRAY_SIZE(wm8804_snd_controls), -}; - -static const struct of_device_id wm8804_of_match[] = { - { .compatible = "wlf,wm8804", }, - { } -}; -MODULE_DEVICE_TABLE(of, wm8804_of_match); - -static struct regmap_config wm8804_regmap_config = { - .reg_bits = 8, - .val_bits = 8, - - .max_register = WM8804_MAX_REGISTER, - .volatile_reg = wm8804_volatile, - - .cache_type = REGCACHE_RBTREE, - .reg_defaults = wm8804_reg_defaults, - .num_reg_defaults = ARRAY_SIZE(wm8804_reg_defaults), -}; - -#if defined(CONFIG_SPI_MASTER) -static int __devinit wm8804_spi_probe(struct spi_device *spi) -{ - struct wm8804_priv *wm8804; - int ret; - - wm8804 = devm_kzalloc(&spi->dev, sizeof *wm8804, GFP_KERNEL); - if (!wm8804) - return -ENOMEM; - - wm8804->regmap = regmap_init_spi(spi, &wm8804_regmap_config); - if (IS_ERR(wm8804->regmap)) { - ret = PTR_ERR(wm8804->regmap); - return ret; - } - - spi_set_drvdata(spi, wm8804); - - ret = snd_soc_register_codec(&spi->dev, - &soc_codec_dev_wm8804, &wm8804_dai, 1); - - return ret; -} - -static int __devexit wm8804_spi_remove(struct spi_device *spi) -{ - struct wm8804_priv *wm8804 = spi_get_drvdata(spi); - snd_soc_unregister_codec(&spi->dev); - regmap_exit(wm8804->regmap); - return 0; -} - -static struct spi_driver wm8804_spi_driver = { - .driver = { - .name = "wm8804", - .owner = THIS_MODULE, - .of_match_table = wm8804_of_match, - }, - .probe = wm8804_spi_probe, - .remove = __devexit_p(wm8804_spi_remove) -}; -#endif - -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) -static __devinit int wm8804_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) -{ - struct wm8804_priv *wm8804; - int ret; - - wm8804 = devm_kzalloc(&i2c->dev, sizeof *wm8804, GFP_KERNEL); - if (!wm8804) - return -ENOMEM; - - wm8804->regmap = regmap_init_i2c(i2c, &wm8804_regmap_config); - if (IS_ERR(wm8804->regmap)) { - ret = PTR_ERR(wm8804->regmap); - return ret; - } - - i2c_set_clientdata(i2c, wm8804); - - ret = snd_soc_register_codec(&i2c->dev, - &soc_codec_dev_wm8804, &wm8804_dai, 1); - if (ret != 0) - goto err; - - return 0; - -err: - regmap_exit(wm8804->regmap); - return ret; -} - -static __devexit int wm8804_i2c_remove(struct i2c_client *i2c) -{ - struct wm8804_priv *wm8804 = i2c_get_clientdata(i2c); - - snd_soc_unregister_codec(&i2c->dev); - regmap_exit(wm8804->regmap); - - return 0; -} - -static const struct i2c_device_id wm8804_i2c_id[] = { - { "wm8804", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id); - -static struct i2c_driver wm8804_i2c_driver = { - .driver = { - .name = "wm8804", - .owner = THIS_MODULE, - .of_match_table = wm8804_of_match, - }, - .probe = wm8804_i2c_probe, - .remove = __devexit_p(wm8804_i2c_remove), - .id_table = wm8804_i2c_id -}; -#endif - -static int __init wm8804_modinit(void) -{ - int ret = 0; - -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - ret = i2c_add_driver(&wm8804_i2c_driver); - if (ret) { - printk(KERN_ERR "Failed to register wm8804 I2C driver: %d\n", - ret); - } -#endif -#if defined(CONFIG_SPI_MASTER) - ret = spi_register_driver(&wm8804_spi_driver); - if (ret != 0) { - printk(KERN_ERR "Failed to register wm8804 SPI driver: %d\n", - ret); - } -#endif - return ret; -} -module_init(wm8804_modinit); - -static void __exit wm8804_exit(void) -{ -#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) - i2c_del_driver(&wm8804_i2c_driver); -#endif -#if defined(CONFIG_SPI_MASTER) - spi_unregister_driver(&wm8804_spi_driver); -#endif -} -module_exit(wm8804_exit); - -MODULE_DESCRIPTION("ASoC WM8804 driver"); -MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>"); -MODULE_LICENSE("GPL"); |