// SPDX-License-Identifier: GPL-2.0
//
// Driver for the Texas Instruments TAS2562 CODEC
// Copyright (C) 2019 Texas Instruments Inc.
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/device.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/delay.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include "tas2562.h"
#define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
SNDRV_PCM_FORMAT_S32_LE)
/* DVC equation involves floating point math
* round(10^(volume in dB/20)*2^30)
* so create a lookup table for 2dB step
*/
static const unsigned int float_vol_db_lookup[] = {
0 x00000d43, 0 x000010b2, 0 x00001505, 0 x00001a67, 0 x00002151,
0 x000029f1, 0 x000034cd, 0 x00004279, 0 x000053af, 0 x0000695b,
0 x0000695b, 0 x0000a6fa, 0 x0000d236, 0 x000108a4, 0 x00014d2a,
0 x0001a36e, 0 x00021008, 0 x000298c0, 0 x000344df, 0 x00041d8f,
0 x00052e5a, 0 x000685c8, 0 x00083621, 0 x000a566d, 0 x000d03a7,
0 x0010624d, 0 x0014a050, 0 x0019f786, 0 x0020b0bc, 0 x0029279d,
0 x0033cf8d, 0 x004139d3, 0 x00521d50, 0 x00676044, 0 x0082248a,
0 x00a3d70a, 0 x00ce4328, 0 x0103ab3d, 0 x0146e75d, 0 x019b8c27,
0 x02061b89, 0 x028c423f, 0 x03352529, 0 x0409c2b0, 0 x05156d68,
0 x080e9f96, 0 x0a24b062, 0 x0cc509ab, 0 x10137987, 0 x143d1362,
0 x197a967f, 0 x2013739e, 0 x28619ae9, 0 x32d64617, 0 x40000000
};
struct tas2562_data {
struct snd_soc_component *component;
struct gpio_desc *sdz_gpio;
struct regmap *regmap;
struct device *dev;
struct i2c_client *client;
int v_sense_slot;
int i_sense_slot;
int volume_lvl;
int model_id;
bool dac_powered;
bool unmuted;
};
enum tas256x_model {
TAS2562,
TAS2564,
TAS2110,
};
static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
{
int samp_rate;
int ramp_rate;
switch (samplerate) {
case 7350 :
ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
break ;
case 8000 :
ramp_rate = 0 ;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
break ;
case 14700 :
ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
break ;
case 16000 :
ramp_rate = 0 ;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
break ;
case 22050 :
ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
break ;
case 24000 :
ramp_rate = 0 ;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
break ;
case 29400 :
ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
break ;
case 32000 :
ramp_rate = 0 ;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
break ;
case 44100 :
ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
break ;
case 48000 :
ramp_rate = 0 ;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
break ;
case 88200 :
ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
break ;
case 96000 :
ramp_rate = 0 ;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
break ;
case 176400 :
ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
break ;
case 192000 :
ramp_rate = 0 ;
samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
break ;
default :
dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n" ,
__func__, samplerate);
return -EINVAL;
}
snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
return 0 ;
}
static int tas2562_set_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 tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
int left_slot, right_slot;
int slots_cfg;
int ret;
if (!tx_mask) {
dev_err(component->dev, "tx masks must not be 0\n" );
return -EINVAL;
}
if (slots == 1 ) {
if (tx_mask != 1 )
return -EINVAL;
left_slot = 0 ;
right_slot = 0 ;
} else {
left_slot = __ffs(tx_mask);
tx_mask &= ~(1 << left_slot);
if (tx_mask == 0 ) {
right_slot = left_slot;
} else {
right_slot = __ffs(tx_mask);
}
}
slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
if (ret < 0 )
return ret;
switch (slot_width) {
case 16 :
ret = snd_soc_component_update_bits(component,
TAS2562_TDM_CFG2,
TAS2562_TDM_CFG2_RXLEN_MASK,
TAS2562_TDM_CFG2_RXLEN_16B);
break ;
case 24 :
ret = snd_soc_component_update_bits(component,
TAS2562_TDM_CFG2,
TAS2562_TDM_CFG2_RXLEN_MASK,
TAS2562_TDM_CFG2_RXLEN_24B);
break ;
case 32 :
ret = snd_soc_component_update_bits(component,
TAS2562_TDM_CFG2,
TAS2562_TDM_CFG2_RXLEN_MASK,
TAS2562_TDM_CFG2_RXLEN_32B);
break ;
case 0 :
/* Do not change slot width */
break ;
default :
dev_err(tas2562->dev, "slot width not supported" );
ret = -EINVAL;
}
if (ret < 0 )
return ret;
ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
tas2562->v_sense_slot);
if (ret < 0 )
return ret;
ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
tas2562->i_sense_slot);
if (ret < 0 )
return ret;
return 0 ;
}
static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
{
int ret;
int val;
int sense_en;
switch (bitwidth) {
case SNDRV_PCM_FORMAT_S16_LE:
snd_soc_component_update_bits(tas2562->component,
TAS2562_TDM_CFG2,
TAS2562_TDM_CFG2_RXWLEN_MASK,
TAS2562_TDM_CFG2_RXWLEN_16B);
break ;
case SNDRV_PCM_FORMAT_S24_LE:
snd_soc_component_update_bits(tas2562->component,
TAS2562_TDM_CFG2,
TAS2562_TDM_CFG2_RXWLEN_MASK,
TAS2562_TDM_CFG2_RXWLEN_24B);
break ;
case SNDRV_PCM_FORMAT_S32_LE:
snd_soc_component_update_bits(tas2562->component,
TAS2562_TDM_CFG2,
TAS2562_TDM_CFG2_RXWLEN_MASK,
TAS2562_TDM_CFG2_RXWLEN_32B);
break ;
default :
dev_info(tas2562->dev, "Unsupported bitwidth format\n" );
return -EINVAL;
}
val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
if (val < 0 )
return val;
if (val & (1 << TAS2562_VSENSE_POWER_EN))
sense_en = 0 ;
else
sense_en = TAS2562_TDM_CFG5_VSNS_EN;
ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
TAS2562_TDM_CFG5_VSNS_EN, sense_en);
if (ret < 0 )
return ret;
if (val & (1 << TAS2562_ISENSE_POWER_EN))
sense_en = 0 ;
else
sense_en = TAS2562_TDM_CFG6_ISNS_EN;
ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
TAS2562_TDM_CFG6_ISNS_EN, sense_en);
if (ret < 0 )
return ret;
return 0 ;
}
static int tas2562_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 tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
int ret;
ret = tas2562_set_bitwidth(tas2562, params_format(params));
if (ret) {
dev_err(tas2562->dev, "set bitwidth failed, %d\n" , ret);
return ret;
}
ret = tas2562_set_samplerate(tas2562, params_rate(params));
if (ret)
dev_err(tas2562->dev, "set sample rate failed, %d\n" , ret);
return ret;
}
static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct snd_soc_component *component = dai->component;
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
u8 asi_cfg_1 = 0 ;
u8 tdm_rx_start_slot = 0 ;
int ret;
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
asi_cfg_1 = 0 ;
break ;
case SND_SOC_DAIFMT_IB_NF:
asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
break ;
default :
dev_err(tas2562->dev, "ASI format Inverse is not found\n" );
return -EINVAL;
}
ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
TAS2562_TDM_CFG1_RX_EDGE_MASK,
asi_cfg_1);
if (ret < 0 ) {
dev_err(tas2562->dev, "Failed to set RX edge\n" );
return ret;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_LEFT_J:
case SND_SOC_DAIFMT_DSP_B:
tdm_rx_start_slot = 0 ;
break ;
case SND_SOC_DAIFMT_I2S:
case SND_SOC_DAIFMT_DSP_A:
tdm_rx_start_slot = 1 ;
break ;
default :
dev_err(tas2562->dev,
"DAI Format is not found, fmt=0x%x\n" , fmt);
return -EINVAL;
}
ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1 ));
if (ret < 0 )
return ret;
return 0 ;
}
static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)
{
struct snd_soc_component *component = tas2562->component;
unsigned int val;
int ret;
if (tas2562->dac_powered)
val = tas2562->unmuted ?
TAS2562_ACTIVE : TAS2562_MUTE;
else
val = TAS2562_SHUTDOWN;
ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
TAS2562_MODE_MASK, val);
if (ret < 0 )
return ret;
return 0 ;
}
static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
{
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);
tas2562->unmuted = !mute;
return tas2562_update_pwr_ctrl(tas2562);
}
static int tas2562_codec_probe(struct snd_soc_component *component)
{
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
tas2562->component = component;
if (tas2562->sdz_gpio)
gpiod_set_value_cansleep(tas2562->sdz_gpio, 1 );
return 0 ;
}
#ifdef CONFIG_PM
static int tas2562_suspend(struct snd_soc_component *component)
{
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
regcache_cache_only(tas2562->regmap, true );
regcache_mark_dirty(tas2562->regmap);
if (tas2562->sdz_gpio)
gpiod_set_value_cansleep(tas2562->sdz_gpio, 0 );
return 0 ;
}
static int tas2562_resume(struct snd_soc_component *component)
{
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
if (tas2562->sdz_gpio)
gpiod_set_value_cansleep(tas2562->sdz_gpio, 1 );
regcache_cache_only(tas2562->regmap, false );
return regcache_sync(tas2562->regmap);
}
#else
#define tas2562_suspend NULL
#define tas2562_resume NULL
#endif
static const char * const tas2562_ASI1_src[] = {
"I2C offset" , "Left" , "Right" , "LeftRightDiv2" ,
};
static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4 ,
tas2562_ASI1_src);
static const struct snd_kcontrol_new tas2562_asi1_mux =
SOC_DAPM_ENUM("ASI1 Source" , tas2562_ASI1_src_enum);
static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
struct snd_soc_component *component =
snd_soc_dapm_to_component(w->dapm);
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
int ret = 0 ;
switch (event) {
case SND_SOC_DAPM_POST_PMU:
tas2562->dac_powered = true ;
ret = tas2562_update_pwr_ctrl(tas2562);
break ;
case SND_SOC_DAPM_PRE_PMD:
tas2562->dac_powered = false ;
ret = tas2562_update_pwr_ctrl(tas2562);
break ;
default :
dev_err(tas2562->dev, "Not supported evevt\n" );
return -EINVAL;
}
return ret;
}
static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0 ] = tas2562->volume_lvl;
return 0 ;
}
static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
int ret;
u32 reg_val;
reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0 ]/2 ];
ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
(reg_val & 0 xff));
if (ret)
return ret;
ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
((reg_val >> 8 ) & 0 xff));
if (ret)
return ret;
ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
((reg_val >> 16 ) & 0 xff));
if (ret)
return ret;
ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
((reg_val >> 24 ) & 0 xff));
if (ret)
return ret;
tas2562->volume_lvl = ucontrol->value.integer.value[0 ];
return 0 ;
}
/* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000 , 100 , 0 );
static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850 , 50 , 0 );
static const struct snd_kcontrol_new isense_switch =
SOC_DAPM_SINGLE("Switch" , TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
1 , 1 );
static const struct snd_kcontrol_new vsense_switch =
SOC_DAPM_SINGLE("Switch" , TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
1 , 1 );
static const struct snd_kcontrol_new tas2562_snd_controls[] = {
SOC_SINGLE_TLV("Amp Gain Volume" , TAS2562_PB_CFG1, 1 , 0 x1c, 0 ,
tas2562_dac_tlv),
SOC_SINGLE_EXT_TLV("Digital Volume Control" , TAS2562_DVC_CFG1, 0 , 110 , 0 ,
tas2562_volume_control_get, tas2562_volume_control_put,
dvc_tlv),
};
static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
SND_SOC_DAPM_AIF_IN("ASI1" , "ASI1 Playback" , 0 , SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_MUX("ASI1 Sel" , SND_SOC_NOPM, 0 , 0 , &tas2562_asi1_mux),
SND_SOC_DAPM_DAC_E("DAC" , NULL, SND_SOC_NOPM, 0 , 0 , tas2562_dac_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_OUTPUT("OUT" ),
};
static const struct snd_soc_dapm_route tas2110_audio_map[] = {
{"ASI1 Sel" , "I2C offset" , "ASI1" },
{"ASI1 Sel" , "Left" , "ASI1" },
{"ASI1 Sel" , "Right" , "ASI1" },
{"ASI1 Sel" , "LeftRightDiv2" , "ASI1" },
{ "DAC" , NULL, "ASI1 Sel" },
{ "OUT" , NULL, "DAC" },
};
static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
.probe = tas2562_codec_probe,
.suspend = tas2562_suspend,
.resume = tas2562_resume,
.controls = tas2562_snd_controls,
.num_controls = ARRAY_SIZE(tas2562_snd_controls),
.dapm_widgets = tas2110_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets),
.dapm_routes = tas2110_audio_map,
.num_dapm_routes = ARRAY_SIZE(tas2110_audio_map),
.idle_bias_on = 1 ,
.use_pmdown_time = 1 ,
.endianness = 1 ,
};
static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
SND_SOC_DAPM_AIF_IN("ASI1" , "ASI1 Playback" , 0 , SND_SOC_NOPM, 0 , 0 ),
SND_SOC_DAPM_MUX("ASI1 Sel" , SND_SOC_NOPM, 0 , 0 , &tas2562_asi1_mux),
SND_SOC_DAPM_DAC_E("DAC" , NULL, SND_SOC_NOPM, 0 , 0 , tas2562_dac_event,
SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
SND_SOC_DAPM_SWITCH("ISENSE" , TAS2562_PWR_CTRL, 3 , 1 , &isense_switch),
SND_SOC_DAPM_SWITCH("VSENSE" , TAS2562_PWR_CTRL, 2 , 1 , &vsense_switch),
SND_SOC_DAPM_SIGGEN("VMON" ),
SND_SOC_DAPM_SIGGEN("IMON" ),
SND_SOC_DAPM_OUTPUT("OUT" ),
};
static const struct snd_soc_dapm_route tas2562_audio_map[] = {
{"ASI1 Sel" , "I2C offset" , "ASI1" },
{"ASI1 Sel" , "Left" , "ASI1" },
{"ASI1 Sel" , "Right" , "ASI1" },
{"ASI1 Sel" , "LeftRightDiv2" , "ASI1" },
{ "DAC" , NULL, "ASI1 Sel" },
{ "OUT" , NULL, "DAC" },
{"ISENSE" , "Switch" , "IMON" },
{"VSENSE" , "Switch" , "VMON" },
};
static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
.probe = tas2562_codec_probe,
.suspend = tas2562_suspend,
.resume = tas2562_resume,
.controls = tas2562_snd_controls,
.num_controls = ARRAY_SIZE(tas2562_snd_controls),
.dapm_widgets = tas2562_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets),
.dapm_routes = tas2562_audio_map,
.num_dapm_routes = ARRAY_SIZE(tas2562_audio_map),
.idle_bias_on = 1 ,
.use_pmdown_time = 1 ,
.endianness = 1 ,
};
static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
.hw_params = tas2562_hw_params,
.set_fmt = tas2562_set_dai_fmt,
.set_tdm_slot = tas2562_set_dai_tdm_slot,
.mute_stream = tas2562_mute,
.no_capture_mute = 1 ,
};
static struct snd_soc_dai_driver tas2562_dai[] = {
{
.name = "tas2562-amplifier" ,
.id = 0 ,
.playback = {
.stream_name = "ASI1 Playback" ,
.channels_min = 2 ,
.channels_max = 2 ,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = TAS2562_FORMATS,
},
.capture = {
.stream_name = "ASI1 Capture" ,
.channels_min = 0 ,
.channels_max = 2 ,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = TAS2562_FORMATS,
},
.ops = &tas2562_speaker_dai_ops,
},
};
static const struct regmap_range_cfg tas2562_ranges[] = {
{
.range_min = 0 ,
.range_max = 5 * 128 ,
.selector_reg = TAS2562_PAGE_CTRL,
.selector_mask = 0 xff,
.selector_shift = 0 ,
.window_start = 0 ,
.window_len = 128 ,
},
};
static const struct reg_default tas2562_reg_defaults[] = {
{ TAS2562_PAGE_CTRL, 0 x00 },
{ TAS2562_SW_RESET, 0 x00 },
{ TAS2562_PWR_CTRL, 0 x0e },
{ TAS2562_PB_CFG1, 0 x20 },
{ TAS2562_TDM_CFG0, 0 x09 },
{ TAS2562_TDM_CFG1, 0 x02 },
{ TAS2562_DVC_CFG1, 0 x40 },
{ TAS2562_DVC_CFG2, 0 x40 },
{ TAS2562_DVC_CFG3, 0 x00 },
{ TAS2562_DVC_CFG4, 0 x00 },
};
static const struct regmap_config tas2562_regmap_config = {
.reg_bits = 8 ,
.val_bits = 8 ,
.max_register = 5 * 128 ,
.cache_type = REGCACHE_RBTREE,
.reg_defaults = tas2562_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
.ranges = tas2562_ranges,
.num_ranges = ARRAY_SIZE(tas2562_ranges),
};
static int tas2562_parse_dt(struct tas2562_data *tas2562)
{
struct device *dev = tas2562->dev;
int ret = 0 ;
tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown" , GPIOD_OUT_HIGH);
if (IS_ERR(tas2562->sdz_gpio)) {
if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
return -EPROBE_DEFER;
tas2562->sdz_gpio = NULL;
}
/*
* The shut-down property is deprecated but needs to be checked for
* backwards compatibility.
*/
if (tas2562->sdz_gpio == NULL) {
tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down" ,
GPIOD_OUT_HIGH);
if (IS_ERR(tas2562->sdz_gpio))
if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
return -EPROBE_DEFER;
tas2562->sdz_gpio = NULL;
}
if (tas2562->model_id == TAS2110)
return ret;
ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no" ,
&tas2562->i_sense_slot);
if (ret) {
dev_err(dev, "Property %s is missing setting default slot\n" ,
"ti,imon-slot-no" );
tas2562->i_sense_slot = 0 ;
}
ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no" ,
&tas2562->v_sense_slot);
if (ret) {
dev_info(dev, "Property %s is missing setting default slot\n" ,
"ti,vmon-slot-no" );
tas2562->v_sense_slot = 2 ;
}
if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
dev_err(dev, "Vsense slot must be greater than Isense slot\n" );
return -EINVAL;
}
return ret;
}
static const struct i2c_device_id tas2562_id[] = {
{ "tas2562" , TAS2562 },
{ "tas2564" , TAS2564 },
{ "tas2110" , TAS2110 },
{ }
};
MODULE_DEVICE_TABLE(i2c, tas2562_id);
static int tas2562_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct tas2562_data *data;
int ret;
data = devm_kzalloc(dev, sizeof (*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->client = client;
data->dev = &client->dev;
data->model_id = (uintptr_t)i2c_get_match_data(client);
tas2562_parse_dt(data);
data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
if (IS_ERR(data->regmap)) {
ret = PTR_ERR(data->regmap);
dev_err(dev, "failed to allocate register map: %d\n" , ret);
return ret;
}
dev_set_drvdata(&client->dev, data);
if (data->model_id == TAS2110)
return devm_snd_soc_register_component(dev,
&soc_component_dev_tas2110,
tas2562_dai,
ARRAY_SIZE(tas2562_dai));
return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
tas2562_dai,
ARRAY_SIZE(tas2562_dai));
}
#ifdef CONFIG_OF
static const struct of_device_id tas2562_of_match[] = {
{ .compatible = "ti,tas2562" , },
{ .compatible = "ti,tas2564" , },
{ .compatible = "ti,tas2110" , },
{ },
};
MODULE_DEVICE_TABLE(of, tas2562_of_match);
#endif
static struct i2c_driver tas2562_i2c_driver = {
.driver = {
.name = "tas2562" ,
.of_match_table = of_match_ptr(tas2562_of_match),
},
.probe = tas2562_probe,
.id_table = tas2562_id,
};
module_i2c_driver(tas2562_i2c_driver);
MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>" );
MODULE_DESCRIPTION("TAS2562 Audio amplifier driver" );
MODULE_LICENSE("GPL" );
Messung V0.5 in Prozent C=96 H=91 G=93
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-08)
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