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linux-stable/sound/soc/codecs/tas2562.c
Shenghao Ding 645994d212
ASoC: tas2562: move tas2563 from tas2562 driver to tas2781 driver 
Move tas2563 from tas2562 driver to tas2781 driver to unbind tas2563 from
tas2562 driver code and bind it to tas2781 driver code, because tas2563
only work in bypass-DSP mode with tas2562 driver. In order to enable DSP
mode for tas2563, it has been moved to tas2781 driver. As to the hardware
part, such as register setting and DSP firmware, all these are stored in
the binary firmware. What tas2781 drivder does is to parse the firmware
and download it to the chip, then power on the chip. So, tas2781 driver
can be resued as tas2563 driver. Only attention will be paid to
downloading corresponding firmware.

Signed-off-by: Shenghao Ding <shenghao-ding@ti.com>
Link: https://msgid.link/r/20240104145721.1398-2-shenghao-ding@ti.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-01-05 13:27:16 +00:00

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// 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[] = {
0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
};
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 & 0xff));
if (ret)
return ret;
ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
((reg_val >> 8) & 0xff));
if (ret)
return ret;
ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
((reg_val >> 16) & 0xff));
if (ret)
return ret;
ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
((reg_val >> 24) & 0xff));
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, 0x1c, 0,
tas2562_dac_tlv),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Digital Volume Control",
.index = 0,
.tlv.p = dvc_tlv,
.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
.info = snd_soc_info_volsw,
.get = tas2562_volume_control_get,
.put = tas2562_volume_control_put,
.private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
},
};
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 = 0xff,
.selector_shift = 0,
.window_start = 0,
.window_len = 128,
},
};
static const struct reg_default tas2562_reg_defaults[] = {
{ TAS2562_PAGE_CTRL, 0x00 },
{ TAS2562_SW_RESET, 0x00 },
{ TAS2562_PWR_CTRL, 0x0e },
{ TAS2562_PB_CFG1, 0x20 },
{ TAS2562_TDM_CFG0, 0x09 },
{ TAS2562_TDM_CFG1, 0x02 },
{ TAS2562_DVC_CFG1, 0x40 },
{ TAS2562_DVC_CFG2, 0x40 },
{ TAS2562_DVC_CFG3, 0x00 },
{ TAS2562_DVC_CFG4, 0x00 },
};
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;
const struct i2c_device_id *id;
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
id = i2c_match_id(tas2562_id, client);
data->client = client;
data->dev = &client->dev;
data->model_id = id->driver_data;
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");
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