mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
594 lines
16 KiB
594 lines
16 KiB
// SPDX-License-Identifier: GPL-2.0-only |
|
/* |
|
* max98926.c -- ALSA SoC MAX98926 driver |
|
* Copyright 2013-15 Maxim Integrated Products |
|
*/ |
|
#include <linux/delay.h> |
|
#include <linux/i2c.h> |
|
#include <linux/module.h> |
|
#include <linux/regmap.h> |
|
#include <linux/slab.h> |
|
#include <linux/cdev.h> |
|
#include <sound/pcm.h> |
|
#include <sound/pcm_params.h> |
|
#include <sound/soc.h> |
|
#include <sound/tlv.h> |
|
#include "max98926.h" |
|
|
|
static const char * const max98926_boost_voltage_txt[] = { |
|
"8.5V", "8.25V", "8.0V", "7.75V", "7.5V", "7.25V", "7.0V", "6.75V", |
|
"6.5V", "6.5V", "6.5V", "6.5V", "6.5V", "6.5V", "6.5V", "6.5V" |
|
}; |
|
|
|
static const char *const max98926_pdm_ch_text[] = { |
|
"Current", "Voltage", |
|
}; |
|
|
|
static const char *const max98926_hpf_cutoff_txt[] = { |
|
"Disable", "DC Block", "100Hz", |
|
"200Hz", "400Hz", "800Hz", |
|
}; |
|
|
|
static const struct reg_default max98926_reg[] = { |
|
{ 0x0B, 0x00 }, /* IRQ Enable0 */ |
|
{ 0x0C, 0x00 }, /* IRQ Enable1 */ |
|
{ 0x0D, 0x00 }, /* IRQ Enable2 */ |
|
{ 0x0E, 0x00 }, /* IRQ Clear0 */ |
|
{ 0x0F, 0x00 }, /* IRQ Clear1 */ |
|
{ 0x10, 0x00 }, /* IRQ Clear2 */ |
|
{ 0x11, 0xC0 }, /* Map0 */ |
|
{ 0x12, 0x00 }, /* Map1 */ |
|
{ 0x13, 0x00 }, /* Map2 */ |
|
{ 0x14, 0xF0 }, /* Map3 */ |
|
{ 0x15, 0x00 }, /* Map4 */ |
|
{ 0x16, 0xAB }, /* Map5 */ |
|
{ 0x17, 0x89 }, /* Map6 */ |
|
{ 0x18, 0x00 }, /* Map7 */ |
|
{ 0x19, 0x00 }, /* Map8 */ |
|
{ 0x1A, 0x04 }, /* DAI Clock Mode 1 */ |
|
{ 0x1B, 0x00 }, /* DAI Clock Mode 2 */ |
|
{ 0x1C, 0x00 }, /* DAI Clock Divider Denominator MSBs */ |
|
{ 0x1D, 0x00 }, /* DAI Clock Divider Denominator LSBs */ |
|
{ 0x1E, 0xF0 }, /* DAI Clock Divider Numerator MSBs */ |
|
{ 0x1F, 0x00 }, /* DAI Clock Divider Numerator LSBs */ |
|
{ 0x20, 0x50 }, /* Format */ |
|
{ 0x21, 0x00 }, /* TDM Slot Select */ |
|
{ 0x22, 0x00 }, /* DOUT Configuration VMON */ |
|
{ 0x23, 0x00 }, /* DOUT Configuration IMON */ |
|
{ 0x24, 0x00 }, /* DOUT Configuration VBAT */ |
|
{ 0x25, 0x00 }, /* DOUT Configuration VBST */ |
|
{ 0x26, 0x00 }, /* DOUT Configuration FLAG */ |
|
{ 0x27, 0xFF }, /* DOUT HiZ Configuration 1 */ |
|
{ 0x28, 0xFF }, /* DOUT HiZ Configuration 2 */ |
|
{ 0x29, 0xFF }, /* DOUT HiZ Configuration 3 */ |
|
{ 0x2A, 0xFF }, /* DOUT HiZ Configuration 4 */ |
|
{ 0x2B, 0x02 }, /* DOUT Drive Strength */ |
|
{ 0x2C, 0x90 }, /* Filters */ |
|
{ 0x2D, 0x00 }, /* Gain */ |
|
{ 0x2E, 0x02 }, /* Gain Ramping */ |
|
{ 0x2F, 0x00 }, /* Speaker Amplifier */ |
|
{ 0x30, 0x0A }, /* Threshold */ |
|
{ 0x31, 0x00 }, /* ALC Attack */ |
|
{ 0x32, 0x80 }, /* ALC Atten and Release */ |
|
{ 0x33, 0x00 }, /* ALC Infinite Hold Release */ |
|
{ 0x34, 0x92 }, /* ALC Configuration */ |
|
{ 0x35, 0x01 }, /* Boost Converter */ |
|
{ 0x36, 0x00 }, /* Block Enable */ |
|
{ 0x37, 0x00 }, /* Configuration */ |
|
{ 0x38, 0x00 }, /* Global Enable */ |
|
{ 0x3A, 0x00 }, /* Boost Limiter */ |
|
}; |
|
|
|
static const struct soc_enum max98926_voltage_enum[] = { |
|
SOC_ENUM_SINGLE(MAX98926_DAI_CLK_DIV_N_LSBS, 0, |
|
ARRAY_SIZE(max98926_pdm_ch_text), |
|
max98926_pdm_ch_text), |
|
}; |
|
|
|
static const struct snd_kcontrol_new max98926_voltage_control = |
|
SOC_DAPM_ENUM("Route", max98926_voltage_enum); |
|
|
|
static const struct soc_enum max98926_current_enum[] = { |
|
SOC_ENUM_SINGLE(MAX98926_DAI_CLK_DIV_N_LSBS, |
|
MAX98926_PDM_SOURCE_1_SHIFT, |
|
ARRAY_SIZE(max98926_pdm_ch_text), |
|
max98926_pdm_ch_text), |
|
}; |
|
|
|
static const struct snd_kcontrol_new max98926_current_control = |
|
SOC_DAPM_ENUM("Route", max98926_current_enum); |
|
|
|
static const struct snd_kcontrol_new max98926_mixer_controls[] = { |
|
SOC_DAPM_SINGLE("PCM Single Switch", MAX98926_SPK_AMP, |
|
MAX98926_INSELECT_MODE_SHIFT, 0, 0), |
|
SOC_DAPM_SINGLE("PDM Single Switch", MAX98926_SPK_AMP, |
|
MAX98926_INSELECT_MODE_SHIFT, 1, 0), |
|
}; |
|
|
|
static const struct snd_kcontrol_new max98926_dai_controls[] = { |
|
SOC_DAPM_SINGLE("Left", MAX98926_GAIN, |
|
MAX98926_DAC_IN_SEL_SHIFT, 0, 0), |
|
SOC_DAPM_SINGLE("Right", MAX98926_GAIN, |
|
MAX98926_DAC_IN_SEL_SHIFT, 1, 0), |
|
SOC_DAPM_SINGLE("LeftRight", MAX98926_GAIN, |
|
MAX98926_DAC_IN_SEL_SHIFT, 2, 0), |
|
SOC_DAPM_SINGLE("(Left+Right)/2 Switch", MAX98926_GAIN, |
|
MAX98926_DAC_IN_SEL_SHIFT, 3, 0), |
|
}; |
|
|
|
static const struct snd_soc_dapm_widget max98926_dapm_widgets[] = { |
|
SND_SOC_DAPM_AIF_IN("DAI_OUT", "HiFi Playback", 0, |
|
SND_SOC_NOPM, 0, 0), |
|
SND_SOC_DAPM_DAC("Amp Enable", NULL, MAX98926_BLOCK_ENABLE, |
|
MAX98926_SPK_EN_SHIFT, 0), |
|
SND_SOC_DAPM_SUPPLY("Global Enable", MAX98926_GLOBAL_ENABLE, |
|
MAX98926_EN_SHIFT, 0, NULL, 0), |
|
SND_SOC_DAPM_SUPPLY("VI Enable", MAX98926_BLOCK_ENABLE, |
|
MAX98926_ADC_IMON_EN_WIDTH | |
|
MAX98926_ADC_VMON_EN_SHIFT, |
|
0, NULL, 0), |
|
SND_SOC_DAPM_PGA("BST Enable", MAX98926_BLOCK_ENABLE, |
|
MAX98926_BST_EN_SHIFT, 0, NULL, 0), |
|
SND_SOC_DAPM_OUTPUT("BE_OUT"), |
|
SND_SOC_DAPM_MIXER("PCM Sel", MAX98926_SPK_AMP, |
|
MAX98926_INSELECT_MODE_SHIFT, 0, |
|
&max98926_mixer_controls[0], |
|
ARRAY_SIZE(max98926_mixer_controls)), |
|
SND_SOC_DAPM_MIXER("DAI Sel", |
|
MAX98926_GAIN, MAX98926_DAC_IN_SEL_SHIFT, 0, |
|
&max98926_dai_controls[0], |
|
ARRAY_SIZE(max98926_dai_controls)), |
|
SND_SOC_DAPM_MUX("PDM CH1 Source", |
|
MAX98926_DAI_CLK_DIV_N_LSBS, |
|
MAX98926_PDM_CURRENT_SHIFT, |
|
0, &max98926_current_control), |
|
SND_SOC_DAPM_MUX("PDM CH0 Source", |
|
MAX98926_DAI_CLK_DIV_N_LSBS, |
|
MAX98926_PDM_VOLTAGE_SHIFT, |
|
0, &max98926_voltage_control), |
|
}; |
|
|
|
static const struct snd_soc_dapm_route max98926_audio_map[] = { |
|
{"VI Enable", NULL, "DAI_OUT"}, |
|
{"DAI Sel", "Left", "VI Enable"}, |
|
{"DAI Sel", "Right", "VI Enable"}, |
|
{"DAI Sel", "LeftRight", "VI Enable"}, |
|
{"DAI Sel", "LeftRightDiv2", "VI Enable"}, |
|
{"PCM Sel", "PCM", "DAI Sel"}, |
|
|
|
{"PDM CH1 Source", "Current", "DAI_OUT"}, |
|
{"PDM CH1 Source", "Voltage", "DAI_OUT"}, |
|
{"PDM CH0 Source", "Current", "DAI_OUT"}, |
|
{"PDM CH0 Source", "Voltage", "DAI_OUT"}, |
|
{"PCM Sel", "Analog", "PDM CH1 Source"}, |
|
{"PCM Sel", "Analog", "PDM CH0 Source"}, |
|
{"Amp Enable", NULL, "PCM Sel"}, |
|
|
|
{"BST Enable", NULL, "Amp Enable"}, |
|
{"BE_OUT", NULL, "BST Enable"}, |
|
}; |
|
|
|
static bool max98926_volatile_register(struct device *dev, unsigned int reg) |
|
{ |
|
switch (reg) { |
|
case MAX98926_VBAT_DATA: |
|
case MAX98926_VBST_DATA: |
|
case MAX98926_LIVE_STATUS0: |
|
case MAX98926_LIVE_STATUS1: |
|
case MAX98926_LIVE_STATUS2: |
|
case MAX98926_STATE0: |
|
case MAX98926_STATE1: |
|
case MAX98926_STATE2: |
|
case MAX98926_FLAG0: |
|
case MAX98926_FLAG1: |
|
case MAX98926_FLAG2: |
|
case MAX98926_VERSION: |
|
return true; |
|
default: |
|
return false; |
|
} |
|
} |
|
|
|
static bool max98926_readable_register(struct device *dev, unsigned int reg) |
|
{ |
|
switch (reg) { |
|
case MAX98926_IRQ_CLEAR0: |
|
case MAX98926_IRQ_CLEAR1: |
|
case MAX98926_IRQ_CLEAR2: |
|
case MAX98926_ALC_HOLD_RLS: |
|
return false; |
|
default: |
|
return true; |
|
} |
|
}; |
|
|
|
static DECLARE_TLV_DB_SCALE(max98926_spk_tlv, -600, 100, 0); |
|
static DECLARE_TLV_DB_RANGE(max98926_current_tlv, |
|
0, 11, TLV_DB_SCALE_ITEM(20, 20, 0), |
|
12, 15, TLV_DB_SCALE_ITEM(320, 40, 0), |
|
); |
|
|
|
static SOC_ENUM_SINGLE_DECL(max98926_dac_hpf_cutoff, |
|
MAX98926_FILTERS, MAX98926_DAC_HPF_SHIFT, |
|
max98926_hpf_cutoff_txt); |
|
|
|
static SOC_ENUM_SINGLE_DECL(max98926_boost_voltage, |
|
MAX98926_CONFIGURATION, MAX98926_BST_VOUT_SHIFT, |
|
max98926_boost_voltage_txt); |
|
|
|
static const struct snd_kcontrol_new max98926_snd_controls[] = { |
|
SOC_SINGLE_TLV("Speaker Volume", MAX98926_GAIN, |
|
MAX98926_SPK_GAIN_SHIFT, |
|
(1<<MAX98926_SPK_GAIN_WIDTH)-1, 0, |
|
max98926_spk_tlv), |
|
SOC_SINGLE("Ramp Switch", MAX98926_GAIN_RAMPING, |
|
MAX98926_SPK_RMP_EN_SHIFT, 1, 0), |
|
SOC_SINGLE("ZCD Switch", MAX98926_GAIN_RAMPING, |
|
MAX98926_SPK_ZCD_EN_SHIFT, 1, 0), |
|
SOC_SINGLE("ALC Switch", MAX98926_THRESHOLD, |
|
MAX98926_ALC_EN_SHIFT, 1, 0), |
|
SOC_SINGLE("ALC Threshold", MAX98926_THRESHOLD, |
|
MAX98926_ALC_TH_SHIFT, |
|
(1<<MAX98926_ALC_TH_WIDTH)-1, 0), |
|
SOC_ENUM("Boost Output Voltage", max98926_boost_voltage), |
|
SOC_SINGLE_TLV("Boost Current Limit", MAX98926_BOOST_LIMITER, |
|
MAX98926_BST_ILIM_SHIFT, |
|
(1<<MAX98926_BST_ILIM_SHIFT)-1, 0, |
|
max98926_current_tlv), |
|
SOC_ENUM("DAC HPF Cutoff", max98926_dac_hpf_cutoff), |
|
SOC_DOUBLE("PDM Channel One", MAX98926_DAI_CLK_DIV_N_LSBS, |
|
MAX98926_PDM_CHANNEL_1_SHIFT, |
|
MAX98926_PDM_CHANNEL_1_HIZ, 1, 0), |
|
SOC_DOUBLE("PDM Channel Zero", MAX98926_DAI_CLK_DIV_N_LSBS, |
|
MAX98926_PDM_CHANNEL_0_SHIFT, |
|
MAX98926_PDM_CHANNEL_0_HIZ, 1, 0), |
|
}; |
|
|
|
static const struct { |
|
int rate; |
|
int sr; |
|
} rate_table[] = { |
|
{ |
|
.rate = 8000, |
|
.sr = 0, |
|
}, |
|
{ |
|
.rate = 11025, |
|
.sr = 1, |
|
}, |
|
{ |
|
.rate = 12000, |
|
.sr = 2, |
|
}, |
|
{ |
|
.rate = 16000, |
|
.sr = 3, |
|
}, |
|
{ |
|
.rate = 22050, |
|
.sr = 4, |
|
}, |
|
{ |
|
.rate = 24000, |
|
.sr = 5, |
|
}, |
|
{ |
|
.rate = 32000, |
|
.sr = 6, |
|
}, |
|
{ |
|
.rate = 44100, |
|
.sr = 7, |
|
}, |
|
{ |
|
.rate = 48000, |
|
.sr = 8, |
|
}, |
|
}; |
|
|
|
static void max98926_set_sense_data(struct max98926_priv *max98926) |
|
{ |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DOUT_CFG_VMON, |
|
MAX98926_DAI_VMON_EN_MASK, |
|
MAX98926_DAI_VMON_EN_MASK); |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DOUT_CFG_IMON, |
|
MAX98926_DAI_IMON_EN_MASK, |
|
MAX98926_DAI_IMON_EN_MASK); |
|
|
|
if (!max98926->interleave_mode) { |
|
/* set VMON slots */ |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DOUT_CFG_VMON, |
|
MAX98926_DAI_VMON_SLOT_MASK, |
|
max98926->v_slot); |
|
/* set IMON slots */ |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DOUT_CFG_IMON, |
|
MAX98926_DAI_IMON_SLOT_MASK, |
|
max98926->i_slot); |
|
} else { |
|
/* enable interleave mode */ |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_FORMAT, |
|
MAX98926_DAI_INTERLEAVE_MASK, |
|
MAX98926_DAI_INTERLEAVE_MASK); |
|
/* set interleave slots */ |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DOUT_CFG_VBAT, |
|
MAX98926_DAI_INTERLEAVE_SLOT_MASK, |
|
max98926->v_slot); |
|
} |
|
} |
|
|
|
static int max98926_dai_set_fmt(struct snd_soc_dai *codec_dai, |
|
unsigned int fmt) |
|
{ |
|
struct snd_soc_component *component = codec_dai->component; |
|
struct max98926_priv *max98926 = snd_soc_component_get_drvdata(component); |
|
unsigned int invert = 0; |
|
|
|
dev_dbg(component->dev, "%s: fmt 0x%08X\n", __func__, fmt); |
|
|
|
switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { |
|
case SND_SOC_DAIFMT_CBS_CFS: |
|
max98926_set_sense_data(max98926); |
|
break; |
|
default: |
|
dev_err(component->dev, "DAI clock mode unsupported\n"); |
|
return -EINVAL; |
|
} |
|
|
|
switch (fmt & SND_SOC_DAIFMT_INV_MASK) { |
|
case SND_SOC_DAIFMT_NB_NF: |
|
break; |
|
case SND_SOC_DAIFMT_NB_IF: |
|
invert = MAX98926_DAI_WCI_MASK; |
|
break; |
|
case SND_SOC_DAIFMT_IB_NF: |
|
invert = MAX98926_DAI_BCI_MASK; |
|
break; |
|
case SND_SOC_DAIFMT_IB_IF: |
|
invert = MAX98926_DAI_BCI_MASK | MAX98926_DAI_WCI_MASK; |
|
break; |
|
default: |
|
dev_err(component->dev, "DAI invert mode unsupported\n"); |
|
return -EINVAL; |
|
} |
|
|
|
regmap_write(max98926->regmap, |
|
MAX98926_FORMAT, MAX98926_DAI_DLY_MASK); |
|
regmap_update_bits(max98926->regmap, MAX98926_FORMAT, |
|
MAX98926_DAI_BCI_MASK, invert); |
|
return 0; |
|
} |
|
|
|
static int max98926_dai_hw_params(struct snd_pcm_substream *substream, |
|
struct snd_pcm_hw_params *params, |
|
struct snd_soc_dai *dai) |
|
{ |
|
int dai_sr = -EINVAL; |
|
int rate = params_rate(params), i; |
|
struct snd_soc_component *component = dai->component; |
|
struct max98926_priv *max98926 = snd_soc_component_get_drvdata(component); |
|
int blr_clk_ratio; |
|
|
|
switch (params_format(params)) { |
|
case SNDRV_PCM_FORMAT_S16_LE: |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_FORMAT, |
|
MAX98926_DAI_CHANSZ_MASK, |
|
MAX98926_DAI_CHANSZ_16); |
|
max98926->ch_size = 16; |
|
break; |
|
case SNDRV_PCM_FORMAT_S24_LE: |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_FORMAT, |
|
MAX98926_DAI_CHANSZ_MASK, |
|
MAX98926_DAI_CHANSZ_24); |
|
max98926->ch_size = 24; |
|
break; |
|
case SNDRV_PCM_FORMAT_S32_LE: |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_FORMAT, |
|
MAX98926_DAI_CHANSZ_MASK, |
|
MAX98926_DAI_CHANSZ_32); |
|
max98926->ch_size = 32; |
|
break; |
|
default: |
|
dev_dbg(component->dev, "format unsupported %d\n", |
|
params_format(params)); |
|
return -EINVAL; |
|
} |
|
|
|
/* BCLK/LRCLK ratio calculation */ |
|
blr_clk_ratio = params_channels(params) * max98926->ch_size; |
|
|
|
switch (blr_clk_ratio) { |
|
case 32: |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DAI_CLK_MODE2, |
|
MAX98926_DAI_BSEL_MASK, |
|
MAX98926_DAI_BSEL_32); |
|
break; |
|
case 48: |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DAI_CLK_MODE2, |
|
MAX98926_DAI_BSEL_MASK, |
|
MAX98926_DAI_BSEL_48); |
|
break; |
|
case 64: |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DAI_CLK_MODE2, |
|
MAX98926_DAI_BSEL_MASK, |
|
MAX98926_DAI_BSEL_64); |
|
break; |
|
default: |
|
return -EINVAL; |
|
} |
|
|
|
/* find the closest rate */ |
|
for (i = 0; i < ARRAY_SIZE(rate_table); i++) { |
|
if (rate_table[i].rate >= rate) { |
|
dai_sr = rate_table[i].sr; |
|
break; |
|
} |
|
} |
|
if (dai_sr < 0) |
|
return -EINVAL; |
|
|
|
/* set DAI_SR to correct LRCLK frequency */ |
|
regmap_update_bits(max98926->regmap, |
|
MAX98926_DAI_CLK_MODE2, |
|
MAX98926_DAI_SR_MASK, dai_sr << MAX98926_DAI_SR_SHIFT); |
|
return 0; |
|
} |
|
|
|
#define MAX98926_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ |
|
SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) |
|
|
|
static const struct snd_soc_dai_ops max98926_dai_ops = { |
|
.set_fmt = max98926_dai_set_fmt, |
|
.hw_params = max98926_dai_hw_params, |
|
}; |
|
|
|
static struct snd_soc_dai_driver max98926_dai[] = { |
|
{ |
|
.name = "max98926-aif1", |
|
.playback = { |
|
.stream_name = "HiFi Playback", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = SNDRV_PCM_RATE_8000_48000, |
|
.formats = MAX98926_FORMATS, |
|
}, |
|
.capture = { |
|
.stream_name = "HiFi Capture", |
|
.channels_min = 1, |
|
.channels_max = 2, |
|
.rates = SNDRV_PCM_RATE_8000_48000, |
|
.formats = MAX98926_FORMATS, |
|
}, |
|
.ops = &max98926_dai_ops, |
|
} |
|
}; |
|
|
|
static int max98926_probe(struct snd_soc_component *component) |
|
{ |
|
struct max98926_priv *max98926 = snd_soc_component_get_drvdata(component); |
|
|
|
max98926->component = component; |
|
|
|
/* Hi-Z all the slots */ |
|
regmap_write(max98926->regmap, MAX98926_DOUT_HIZ_CFG4, 0xF0); |
|
return 0; |
|
} |
|
|
|
static const struct snd_soc_component_driver soc_component_dev_max98926 = { |
|
.probe = max98926_probe, |
|
.controls = max98926_snd_controls, |
|
.num_controls = ARRAY_SIZE(max98926_snd_controls), |
|
.dapm_routes = max98926_audio_map, |
|
.num_dapm_routes = ARRAY_SIZE(max98926_audio_map), |
|
.dapm_widgets = max98926_dapm_widgets, |
|
.num_dapm_widgets = ARRAY_SIZE(max98926_dapm_widgets), |
|
.idle_bias_on = 1, |
|
.use_pmdown_time = 1, |
|
.endianness = 1, |
|
.non_legacy_dai_naming = 1, |
|
}; |
|
|
|
static const struct regmap_config max98926_regmap = { |
|
.reg_bits = 8, |
|
.val_bits = 8, |
|
.max_register = MAX98926_VERSION, |
|
.reg_defaults = max98926_reg, |
|
.num_reg_defaults = ARRAY_SIZE(max98926_reg), |
|
.volatile_reg = max98926_volatile_register, |
|
.readable_reg = max98926_readable_register, |
|
.cache_type = REGCACHE_RBTREE, |
|
}; |
|
|
|
static int max98926_i2c_probe(struct i2c_client *i2c, |
|
const struct i2c_device_id *id) |
|
{ |
|
int ret, reg; |
|
u32 value; |
|
struct max98926_priv *max98926; |
|
|
|
max98926 = devm_kzalloc(&i2c->dev, |
|
sizeof(*max98926), GFP_KERNEL); |
|
if (!max98926) |
|
return -ENOMEM; |
|
|
|
i2c_set_clientdata(i2c, max98926); |
|
max98926->regmap = devm_regmap_init_i2c(i2c, &max98926_regmap); |
|
if (IS_ERR(max98926->regmap)) { |
|
ret = PTR_ERR(max98926->regmap); |
|
dev_err(&i2c->dev, |
|
"Failed to allocate regmap: %d\n", ret); |
|
goto err_out; |
|
} |
|
if (of_property_read_bool(i2c->dev.of_node, "interleave-mode")) |
|
max98926->interleave_mode = true; |
|
|
|
if (!of_property_read_u32(i2c->dev.of_node, "vmon-slot-no", &value)) { |
|
if (value > MAX98926_DAI_VMON_SLOT_1E_1F) { |
|
dev_err(&i2c->dev, "vmon slot number is wrong:\n"); |
|
return -EINVAL; |
|
} |
|
max98926->v_slot = value; |
|
} |
|
if (!of_property_read_u32(i2c->dev.of_node, "imon-slot-no", &value)) { |
|
if (value > MAX98926_DAI_IMON_SLOT_1E_1F) { |
|
dev_err(&i2c->dev, "imon slot number is wrong:\n"); |
|
return -EINVAL; |
|
} |
|
max98926->i_slot = value; |
|
} |
|
ret = regmap_read(max98926->regmap, |
|
MAX98926_VERSION, ®); |
|
if (ret < 0) { |
|
dev_err(&i2c->dev, "Failed to read: %x\n", reg); |
|
return ret; |
|
} |
|
|
|
ret = devm_snd_soc_register_component(&i2c->dev, |
|
&soc_component_dev_max98926, |
|
max98926_dai, ARRAY_SIZE(max98926_dai)); |
|
if (ret < 0) |
|
dev_err(&i2c->dev, |
|
"Failed to register component: %d\n", ret); |
|
dev_info(&i2c->dev, "device version: %x\n", reg); |
|
err_out: |
|
return ret; |
|
} |
|
|
|
static const struct i2c_device_id max98926_i2c_id[] = { |
|
{ "max98926", 0 }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, max98926_i2c_id); |
|
|
|
#ifdef CONFIG_OF |
|
static const struct of_device_id max98926_of_match[] = { |
|
{ .compatible = "maxim,max98926", }, |
|
{ } |
|
}; |
|
MODULE_DEVICE_TABLE(of, max98926_of_match); |
|
#endif |
|
|
|
static struct i2c_driver max98926_i2c_driver = { |
|
.driver = { |
|
.name = "max98926", |
|
.of_match_table = of_match_ptr(max98926_of_match), |
|
}, |
|
.probe = max98926_i2c_probe, |
|
.id_table = max98926_i2c_id, |
|
}; |
|
|
|
module_i2c_driver(max98926_i2c_driver) |
|
MODULE_DESCRIPTION("ALSA SoC MAX98926 driver"); |
|
MODULE_AUTHOR("Anish kumar <[email protected]>"); |
|
MODULE_LICENSE("GPL");
|
|
|