From d7ee0c722117a6a0830637a3408f2ce1b78afedd Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Wed, 8 Jul 2020 15:32:12 -0500 Subject: ASoC: codecs: max98373: split I2C and common parts To prepare support for SoundWire, let's first split the I2C and common parts. No new functionality, just indents and formatting to make checkpatch happy. Signed-off-by: Pierre-Louis Bossart Reviewed-by: Rander Wang Reviewed-by: Kai Vehmanen Link: https://lore.kernel.org/r/20200708203215.231776-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown --- sound/soc/codecs/max98373.c | 601 +------------------------------------------- 1 file changed, 7 insertions(+), 594 deletions(-) (limited to 'sound/soc/codecs/max98373.c') diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c index 96718e3a1ad0..a8ed9f12682b 100644 --- a/sound/soc/codecs/max98373.c +++ b/sound/soc/codecs/max98373.c @@ -17,388 +17,6 @@ #include #include "max98373.h" -static struct reg_default max98373_reg[] = { - {MAX98373_R2000_SW_RESET, 0x00}, - {MAX98373_R2001_INT_RAW1, 0x00}, - {MAX98373_R2002_INT_RAW2, 0x00}, - {MAX98373_R2003_INT_RAW3, 0x00}, - {MAX98373_R2004_INT_STATE1, 0x00}, - {MAX98373_R2005_INT_STATE2, 0x00}, - {MAX98373_R2006_INT_STATE3, 0x00}, - {MAX98373_R2007_INT_FLAG1, 0x00}, - {MAX98373_R2008_INT_FLAG2, 0x00}, - {MAX98373_R2009_INT_FLAG3, 0x00}, - {MAX98373_R200A_INT_EN1, 0x00}, - {MAX98373_R200B_INT_EN2, 0x00}, - {MAX98373_R200C_INT_EN3, 0x00}, - {MAX98373_R200D_INT_FLAG_CLR1, 0x00}, - {MAX98373_R200E_INT_FLAG_CLR2, 0x00}, - {MAX98373_R200F_INT_FLAG_CLR3, 0x00}, - {MAX98373_R2010_IRQ_CTRL, 0x00}, - {MAX98373_R2014_THERM_WARN_THRESH, 0x10}, - {MAX98373_R2015_THERM_SHDN_THRESH, 0x27}, - {MAX98373_R2016_THERM_HYSTERESIS, 0x01}, - {MAX98373_R2017_THERM_FOLDBACK_SET, 0xC0}, - {MAX98373_R2018_THERM_FOLDBACK_EN, 0x00}, - {MAX98373_R201E_PIN_DRIVE_STRENGTH, 0x55}, - {MAX98373_R2020_PCM_TX_HIZ_EN_1, 0xFE}, - {MAX98373_R2021_PCM_TX_HIZ_EN_2, 0xFF}, - {MAX98373_R2022_PCM_TX_SRC_1, 0x00}, - {MAX98373_R2023_PCM_TX_SRC_2, 0x00}, - {MAX98373_R2024_PCM_DATA_FMT_CFG, 0xC0}, - {MAX98373_R2025_AUDIO_IF_MODE, 0x00}, - {MAX98373_R2026_PCM_CLOCK_RATIO, 0x04}, - {MAX98373_R2027_PCM_SR_SETUP_1, 0x08}, - {MAX98373_R2028_PCM_SR_SETUP_2, 0x88}, - {MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1, 0x00}, - {MAX98373_R202A_PCM_TO_SPK_MONO_MIX_2, 0x00}, - {MAX98373_R202B_PCM_RX_EN, 0x00}, - {MAX98373_R202C_PCM_TX_EN, 0x00}, - {MAX98373_R202E_ICC_RX_CH_EN_1, 0x00}, - {MAX98373_R202F_ICC_RX_CH_EN_2, 0x00}, - {MAX98373_R2030_ICC_TX_HIZ_EN_1, 0xFF}, - {MAX98373_R2031_ICC_TX_HIZ_EN_2, 0xFF}, - {MAX98373_R2032_ICC_LINK_EN_CFG, 0x30}, - {MAX98373_R2034_ICC_TX_CNTL, 0x00}, - {MAX98373_R2035_ICC_TX_EN, 0x00}, - {MAX98373_R2036_SOUNDWIRE_CTRL, 0x05}, - {MAX98373_R203D_AMP_DIG_VOL_CTRL, 0x00}, - {MAX98373_R203E_AMP_PATH_GAIN, 0x08}, - {MAX98373_R203F_AMP_DSP_CFG, 0x02}, - {MAX98373_R2040_TONE_GEN_CFG, 0x00}, - {MAX98373_R2041_AMP_CFG, 0x03}, - {MAX98373_R2042_AMP_EDGE_RATE_CFG, 0x00}, - {MAX98373_R2043_AMP_EN, 0x00}, - {MAX98373_R2046_IV_SENSE_ADC_DSP_CFG, 0x04}, - {MAX98373_R2047_IV_SENSE_ADC_EN, 0x00}, - {MAX98373_R2051_MEAS_ADC_SAMPLING_RATE, 0x00}, - {MAX98373_R2052_MEAS_ADC_PVDD_FLT_CFG, 0x00}, - {MAX98373_R2053_MEAS_ADC_THERM_FLT_CFG, 0x00}, - {MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK, 0x00}, - {MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK, 0x00}, - {MAX98373_R2056_MEAS_ADC_PVDD_CH_EN, 0x00}, - {MAX98373_R2090_BDE_LVL_HOLD, 0x00}, - {MAX98373_R2091_BDE_GAIN_ATK_REL_RATE, 0x00}, - {MAX98373_R2092_BDE_CLIPPER_MODE, 0x00}, - {MAX98373_R2097_BDE_L1_THRESH, 0x00}, - {MAX98373_R2098_BDE_L2_THRESH, 0x00}, - {MAX98373_R2099_BDE_L3_THRESH, 0x00}, - {MAX98373_R209A_BDE_L4_THRESH, 0x00}, - {MAX98373_R209B_BDE_THRESH_HYST, 0x00}, - {MAX98373_R20A8_BDE_L1_CFG_1, 0x00}, - {MAX98373_R20A9_BDE_L1_CFG_2, 0x00}, - {MAX98373_R20AA_BDE_L1_CFG_3, 0x00}, - {MAX98373_R20AB_BDE_L2_CFG_1, 0x00}, - {MAX98373_R20AC_BDE_L2_CFG_2, 0x00}, - {MAX98373_R20AD_BDE_L2_CFG_3, 0x00}, - {MAX98373_R20AE_BDE_L3_CFG_1, 0x00}, - {MAX98373_R20AF_BDE_L3_CFG_2, 0x00}, - {MAX98373_R20B0_BDE_L3_CFG_3, 0x00}, - {MAX98373_R20B1_BDE_L4_CFG_1, 0x00}, - {MAX98373_R20B2_BDE_L4_CFG_2, 0x00}, - {MAX98373_R20B3_BDE_L4_CFG_3, 0x00}, - {MAX98373_R20B4_BDE_INFINITE_HOLD_RELEASE, 0x00}, - {MAX98373_R20B5_BDE_EN, 0x00}, - {MAX98373_R20B6_BDE_CUR_STATE_READBACK, 0x00}, - {MAX98373_R20D1_DHT_CFG, 0x01}, - {MAX98373_R20D2_DHT_ATTACK_CFG, 0x02}, - {MAX98373_R20D3_DHT_RELEASE_CFG, 0x03}, - {MAX98373_R20D4_DHT_EN, 0x00}, - {MAX98373_R20E0_LIMITER_THRESH_CFG, 0x00}, - {MAX98373_R20E1_LIMITER_ATK_REL_RATES, 0x00}, - {MAX98373_R20E2_LIMITER_EN, 0x00}, - {MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG, 0x00}, - {MAX98373_R20FF_GLOBAL_SHDN, 0x00}, - {MAX98373_R21FF_REV_ID, 0x42}, -}; - -static int max98373_dai_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt) -{ - struct snd_soc_component *component = codec_dai->component; - struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); - unsigned int format = 0; - unsigned int invert = 0; - - dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt); - - switch (fmt & SND_SOC_DAIFMT_INV_MASK) { - case SND_SOC_DAIFMT_NB_NF: - break; - case SND_SOC_DAIFMT_IB_NF: - invert = MAX98373_PCM_MODE_CFG_PCM_BCLKEDGE; - break; - default: - dev_err(component->dev, "DAI invert mode unsupported\n"); - return -EINVAL; - } - - regmap_update_bits(max98373->regmap, - MAX98373_R2026_PCM_CLOCK_RATIO, - MAX98373_PCM_MODE_CFG_PCM_BCLKEDGE, - invert); - - /* interface format */ - switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { - case SND_SOC_DAIFMT_I2S: - format = MAX98373_PCM_FORMAT_I2S; - break; - case SND_SOC_DAIFMT_LEFT_J: - format = MAX98373_PCM_FORMAT_LJ; - break; - case SND_SOC_DAIFMT_DSP_A: - format = MAX98373_PCM_FORMAT_TDM_MODE1; - break; - case SND_SOC_DAIFMT_DSP_B: - format = MAX98373_PCM_FORMAT_TDM_MODE0; - break; - default: - return -EINVAL; - } - - regmap_update_bits(max98373->regmap, - MAX98373_R2024_PCM_DATA_FMT_CFG, - MAX98373_PCM_MODE_CFG_FORMAT_MASK, - format << MAX98373_PCM_MODE_CFG_FORMAT_SHIFT); - - return 0; -} - -/* BCLKs per LRCLK */ -static const int bclk_sel_table[] = { - 32, 48, 64, 96, 128, 192, 256, 384, 512, 320, -}; - -static int max98373_get_bclk_sel(int bclk) -{ - int i; - /* match BCLKs per LRCLK */ - for (i = 0; i < ARRAY_SIZE(bclk_sel_table); i++) { - if (bclk_sel_table[i] == bclk) - return i + 2; - } - return 0; -} - -static int max98373_set_clock(struct snd_soc_component *component, - struct snd_pcm_hw_params *params) -{ - struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); - /* BCLK/LRCLK ratio calculation */ - int blr_clk_ratio = params_channels(params) * max98373->ch_size; - int value; - - if (!max98373->tdm_mode) { - /* BCLK configuration */ - value = max98373_get_bclk_sel(blr_clk_ratio); - if (!value) { - dev_err(component->dev, "format unsupported %d\n", - params_format(params)); - return -EINVAL; - } - - regmap_update_bits(max98373->regmap, - MAX98373_R2026_PCM_CLOCK_RATIO, - MAX98373_PCM_CLK_SETUP_BSEL_MASK, - value); - } - return 0; -} - -static int max98373_dai_hw_params(struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params, - struct snd_soc_dai *dai) -{ - struct snd_soc_component *component = dai->component; - struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); - unsigned int sampling_rate = 0; - unsigned int chan_sz = 0; - - /* pcm mode configuration */ - switch (snd_pcm_format_width(params_format(params))) { - case 16: - chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_16; - break; - case 24: - chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_24; - break; - case 32: - chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_32; - break; - default: - dev_err(component->dev, "format unsupported %d\n", - params_format(params)); - goto err; - } - - max98373->ch_size = snd_pcm_format_width(params_format(params)); - - regmap_update_bits(max98373->regmap, - MAX98373_R2024_PCM_DATA_FMT_CFG, - MAX98373_PCM_MODE_CFG_CHANSZ_MASK, chan_sz); - - dev_dbg(component->dev, "format supported %d", - params_format(params)); - - /* sampling rate configuration */ - switch (params_rate(params)) { - case 8000: - sampling_rate = MAX98373_PCM_SR_SET1_SR_8000; - break; - case 11025: - sampling_rate = MAX98373_PCM_SR_SET1_SR_11025; - break; - case 12000: - sampling_rate = MAX98373_PCM_SR_SET1_SR_12000; - break; - case 16000: - sampling_rate = MAX98373_PCM_SR_SET1_SR_16000; - break; - case 22050: - sampling_rate = MAX98373_PCM_SR_SET1_SR_22050; - break; - case 24000: - sampling_rate = MAX98373_PCM_SR_SET1_SR_24000; - break; - case 32000: - sampling_rate = MAX98373_PCM_SR_SET1_SR_32000; - break; - case 44100: - sampling_rate = MAX98373_PCM_SR_SET1_SR_44100; - break; - case 48000: - sampling_rate = MAX98373_PCM_SR_SET1_SR_48000; - break; - case 88200: - sampling_rate = MAX98373_PCM_SR_SET1_SR_88200; - break; - case 96000: - sampling_rate = MAX98373_PCM_SR_SET1_SR_96000; - break; - default: - dev_err(component->dev, "rate %d not supported\n", - params_rate(params)); - goto err; - } - - /* set DAI_SR to correct LRCLK frequency */ - regmap_update_bits(max98373->regmap, - MAX98373_R2027_PCM_SR_SETUP_1, - MAX98373_PCM_SR_SET1_SR_MASK, - sampling_rate); - regmap_update_bits(max98373->regmap, - MAX98373_R2028_PCM_SR_SETUP_2, - MAX98373_PCM_SR_SET2_SR_MASK, - sampling_rate << MAX98373_PCM_SR_SET2_SR_SHIFT); - - /* set sampling rate of IV */ - if (max98373->interleave_mode && - sampling_rate > MAX98373_PCM_SR_SET1_SR_16000) - regmap_update_bits(max98373->regmap, - MAX98373_R2028_PCM_SR_SETUP_2, - MAX98373_PCM_SR_SET2_IVADC_SR_MASK, - sampling_rate - 3); - else - regmap_update_bits(max98373->regmap, - MAX98373_R2028_PCM_SR_SETUP_2, - MAX98373_PCM_SR_SET2_IVADC_SR_MASK, - sampling_rate); - - return max98373_set_clock(component, params); -err: - return -EINVAL; -} - -static int max98373_dai_tdm_slot(struct snd_soc_dai *dai, - unsigned int tx_mask, unsigned int rx_mask, - int slots, int slot_width) -{ - struct snd_soc_component *component = dai->component; - struct max98373_priv *max98373 = snd_soc_component_get_drvdata(component); - int bsel = 0; - unsigned int chan_sz = 0; - unsigned int mask; - int x, slot_found; - - if (!tx_mask && !rx_mask && !slots && !slot_width) - max98373->tdm_mode = false; - else - max98373->tdm_mode = true; - - /* BCLK configuration */ - bsel = max98373_get_bclk_sel(slots * slot_width); - if (bsel == 0) { - dev_err(component->dev, "BCLK %d not supported\n", - slots * slot_width); - return -EINVAL; - } - - regmap_update_bits(max98373->regmap, - MAX98373_R2026_PCM_CLOCK_RATIO, - MAX98373_PCM_CLK_SETUP_BSEL_MASK, - bsel); - - /* Channel size configuration */ - switch (slot_width) { - case 16: - chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_16; - break; - case 24: - chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_24; - break; - case 32: - chan_sz = MAX98373_PCM_MODE_CFG_CHANSZ_32; - break; - default: - dev_err(component->dev, "format unsupported %d\n", - slot_width); - return -EINVAL; - } - - regmap_update_bits(max98373->regmap, - MAX98373_R2024_PCM_DATA_FMT_CFG, - MAX98373_PCM_MODE_CFG_CHANSZ_MASK, chan_sz); - - /* Rx slot configuration */ - slot_found = 0; - mask = rx_mask; - for (x = 0 ; x < 16 ; x++, mask >>= 1) { - if (mask & 0x1) { - if (slot_found == 0) - regmap_update_bits(max98373->regmap, - MAX98373_R2029_PCM_TO_SPK_MONO_MIX_1, - MAX98373_PCM_TO_SPK_CH0_SRC_MASK, x); - else - regmap_write(max98373->regmap, - MAX98373_R202A_PCM_TO_SPK_MONO_MIX_2, - x); - slot_found++; - if (slot_found > 1) - break; - } - } - - /* Tx slot Hi-Z configuration */ - regmap_write(max98373->regmap, - MAX98373_R2020_PCM_TX_HIZ_EN_1, - ~tx_mask & 0xFF); - regmap_write(max98373->regmap, - MAX98373_R2021_PCM_TX_HIZ_EN_2, - (~tx_mask & 0xFF00) >> 8); - - return 0; -} - -#define MAX98373_RATES SNDRV_PCM_RATE_8000_96000 - -#define MAX98373_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ - SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) - -static const struct snd_soc_dai_ops max98373_dai_ops = { - .set_fmt = max98373_dai_set_fmt, - .hw_params = max98373_dai_hw_params, - .set_tdm_slot = max98373_dai_tdm_slot, -}; - static int max98373_dac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { @@ -493,52 +111,6 @@ static const DECLARE_TLV_DB_RANGE(max98373_bde_gain_tlv, 0, 60, TLV_DB_SCALE_ITEM(-1500, 25, 0), ); -static bool max98373_readable_register(struct device *dev, unsigned int reg) -{ - switch (reg) { - case MAX98373_R2000_SW_RESET: - case MAX98373_R2001_INT_RAW1 ... MAX98373_R200C_INT_EN3: - case MAX98373_R2010_IRQ_CTRL: - case MAX98373_R2014_THERM_WARN_THRESH - ... MAX98373_R2018_THERM_FOLDBACK_EN: - case MAX98373_R201E_PIN_DRIVE_STRENGTH - ... MAX98373_R2036_SOUNDWIRE_CTRL: - case MAX98373_R203D_AMP_DIG_VOL_CTRL ... MAX98373_R2043_AMP_EN: - case MAX98373_R2046_IV_SENSE_ADC_DSP_CFG - ... MAX98373_R2047_IV_SENSE_ADC_EN: - case MAX98373_R2051_MEAS_ADC_SAMPLING_RATE - ... MAX98373_R2056_MEAS_ADC_PVDD_CH_EN: - case MAX98373_R2090_BDE_LVL_HOLD ... MAX98373_R2092_BDE_CLIPPER_MODE: - case MAX98373_R2097_BDE_L1_THRESH - ... MAX98373_R209B_BDE_THRESH_HYST: - case MAX98373_R20A8_BDE_L1_CFG_1 ... MAX98373_R20B3_BDE_L4_CFG_3: - case MAX98373_R20B5_BDE_EN ... MAX98373_R20B6_BDE_CUR_STATE_READBACK: - case MAX98373_R20D1_DHT_CFG ... MAX98373_R20D4_DHT_EN: - case MAX98373_R20E0_LIMITER_THRESH_CFG ... MAX98373_R20E2_LIMITER_EN: - case MAX98373_R20FE_DEVICE_AUTO_RESTART_CFG - ... MAX98373_R20FF_GLOBAL_SHDN: - case MAX98373_R21FF_REV_ID: - return true; - default: - return false; - } -}; - -static bool max98373_volatile_reg(struct device *dev, unsigned int reg) -{ - switch (reg) { - case MAX98373_R2000_SW_RESET ... MAX98373_R2009_INT_FLAG3: - case MAX98373_R203E_AMP_PATH_GAIN: - case MAX98373_R2054_MEAS_ADC_PVDD_CH_READBACK: - case MAX98373_R2055_MEAS_ADC_THERM_CH_READBACK: - case MAX98373_R20B6_BDE_CUR_STATE_READBACK: - case MAX98373_R21FF_REV_ID: - return true; - default: - return false; - } -} - static const char * const max98373_output_voltage_lvl_text[] = { "5.43V", "6.09V", "6.83V", "7.67V", "8.60V", "9.65V", "10.83V", "12.15V", "13.63V", "15.29V" @@ -710,28 +282,7 @@ static const struct snd_soc_dapm_route max98373_audio_map[] = { { "Speaker FB Sense", NULL, "SpkFB Sense" }, }; -static struct snd_soc_dai_driver max98373_dai[] = { - { - .name = "max98373-aif1", - .playback = { - .stream_name = "HiFi Playback", - .channels_min = 1, - .channels_max = 2, - .rates = MAX98373_RATES, - .formats = MAX98373_FORMATS, - }, - .capture = { - .stream_name = "HiFi Capture", - .channels_min = 1, - .channels_max = 2, - .rates = MAX98373_RATES, - .formats = MAX98373_FORMATS, - }, - .ops = &max98373_dai_ops, - } -}; - -static void max98373_reset(struct max98373_priv *max98373, struct device *dev) +void max98373_reset(struct max98373_priv *max98373, struct device *dev) { int ret, reg, count; @@ -757,6 +308,7 @@ static void max98373_reset(struct max98373_priv *max98373, struct device *dev) } dev_err(dev, "Reset failed. (ret:%d)\n", ret); } +EXPORT_SYMBOL_GPL(max98373_reset); static int max98373_probe(struct snd_soc_component *component) { @@ -837,31 +389,7 @@ static int max98373_probe(struct snd_soc_component *component) return 0; } -#ifdef CONFIG_PM_SLEEP -static int max98373_suspend(struct device *dev) -{ - struct max98373_priv *max98373 = dev_get_drvdata(dev); - - regcache_cache_only(max98373->regmap, true); - regcache_mark_dirty(max98373->regmap); - return 0; -} -static int max98373_resume(struct device *dev) -{ - struct max98373_priv *max98373 = dev_get_drvdata(dev); - - regcache_cache_only(max98373->regmap, false); - max98373_reset(max98373, dev); - regcache_sync(max98373->regmap); - return 0; -} -#endif - -static const struct dev_pm_ops max98373_pm = { - SET_SYSTEM_SLEEP_PM_OPS(max98373_suspend, max98373_resume) -}; - -static const struct snd_soc_component_driver soc_codec_dev_max98373 = { +const struct snd_soc_component_driver soc_codec_dev_max98373 = { .probe = max98373_probe, .controls = max98373_snd_controls, .num_controls = ARRAY_SIZE(max98373_snd_controls), @@ -874,23 +402,12 @@ static const struct snd_soc_component_driver soc_codec_dev_max98373 = { .endianness = 1, .non_legacy_dai_naming = 1, }; +EXPORT_SYMBOL_GPL(soc_codec_dev_max98373); -static const struct regmap_config max98373_regmap = { - .reg_bits = 16, - .val_bits = 8, - .max_register = MAX98373_R21FF_REV_ID, - .reg_defaults = max98373_reg, - .num_reg_defaults = ARRAY_SIZE(max98373_reg), - .readable_reg = max98373_readable_register, - .volatile_reg = max98373_volatile_reg, - .cache_type = REGCACHE_RBTREE, -}; - -static void max98373_slot_config(struct i2c_client *i2c, - struct max98373_priv *max98373) +void max98373_slot_config(struct device *dev, + struct max98373_priv *max98373) { int value; - struct device *dev = &i2c->dev; if (!device_property_read_u32(dev, "maxim,vmon-slot-no", &value)) max98373->v_slot = value & 0xF; @@ -922,111 +439,7 @@ static void max98373_slot_config(struct i2c_client *i2c, else max98373->spkfb_slot = 2; } - -static int max98373_i2c_probe(struct i2c_client *i2c, - const struct i2c_device_id *id) -{ - - int ret = 0; - int reg = 0; - struct max98373_priv *max98373 = NULL; - - max98373 = devm_kzalloc(&i2c->dev, sizeof(*max98373), GFP_KERNEL); - - if (!max98373) { - ret = -ENOMEM; - return ret; - } - i2c_set_clientdata(i2c, max98373); - - /* update interleave mode info */ - if (device_property_read_bool(&i2c->dev, "maxim,interleave_mode")) - max98373->interleave_mode = true; - else - max98373->interleave_mode = false; - - /* regmap initialization */ - max98373->regmap - = devm_regmap_init_i2c(i2c, &max98373_regmap); - if (IS_ERR(max98373->regmap)) { - ret = PTR_ERR(max98373->regmap); - dev_err(&i2c->dev, - "Failed to allocate regmap: %d\n", ret); - return ret; - } - - /* voltage/current slot & gpio configuration */ - max98373_slot_config(i2c, max98373); - - /* Power on device */ - if (gpio_is_valid(max98373->reset_gpio)) { - ret = devm_gpio_request(&i2c->dev, max98373->reset_gpio, - "MAX98373_RESET"); - if (ret) { - dev_err(&i2c->dev, "%s: Failed to request gpio %d\n", - __func__, max98373->reset_gpio); - return -EINVAL; - } - gpio_direction_output(max98373->reset_gpio, 0); - msleep(50); - gpio_direction_output(max98373->reset_gpio, 1); - msleep(20); - } - - /* Check Revision ID */ - ret = regmap_read(max98373->regmap, - MAX98373_R21FF_REV_ID, ®); - if (ret < 0) { - dev_err(&i2c->dev, - "Failed to read: 0x%02X\n", MAX98373_R21FF_REV_ID); - return ret; - } - dev_info(&i2c->dev, "MAX98373 revisionID: 0x%02X\n", reg); - - /* codec registeration */ - ret = devm_snd_soc_register_component(&i2c->dev, &soc_codec_dev_max98373, - max98373_dai, ARRAY_SIZE(max98373_dai)); - if (ret < 0) - dev_err(&i2c->dev, "Failed to register codec: %d\n", ret); - - return ret; -} - -static const struct i2c_device_id max98373_i2c_id[] = { - { "max98373", 0}, - { }, -}; - -MODULE_DEVICE_TABLE(i2c, max98373_i2c_id); - -#if defined(CONFIG_OF) -static const struct of_device_id max98373_of_match[] = { - { .compatible = "maxim,max98373", }, - { } -}; -MODULE_DEVICE_TABLE(of, max98373_of_match); -#endif - -#ifdef CONFIG_ACPI -static const struct acpi_device_id max98373_acpi_match[] = { - { "MX98373", 0 }, - {}, -}; -MODULE_DEVICE_TABLE(acpi, max98373_acpi_match); -#endif - -static struct i2c_driver max98373_i2c_driver = { - .driver = { - .name = "max98373", - .of_match_table = of_match_ptr(max98373_of_match), - .acpi_match_table = ACPI_PTR(max98373_acpi_match), - .pm = &max98373_pm, - }, - .probe = max98373_i2c_probe, - .id_table = max98373_i2c_id, -}; - -module_i2c_driver(max98373_i2c_driver) +EXPORT_SYMBOL_GPL(max98373_slot_config); MODULE_DESCRIPTION("ALSA SoC MAX98373 driver"); MODULE_AUTHOR("Ryan Lee "); -- cgit v1.2.3