From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- sound/soc/codecs/tas2770.c | 730 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 730 insertions(+) create mode 100644 sound/soc/codecs/tas2770.c (limited to 'sound/soc/codecs/tas2770.c') diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c new file mode 100644 index 000000000..8557759ac --- /dev/null +++ b/sound/soc/codecs/tas2770.c @@ -0,0 +1,730 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// ALSA SoC Texas Instruments TAS2770 20-W Digital Input Mono Class-D +// Audio Amplifier with Speaker I/V Sense +// +// Copyright (C) 2016-2017 Texas Instruments Incorporated - https://www.ti.com/ +// Author: Tracy Yi +// Frank Shi + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "tas2770.h" + +#define TAS2770_MDELAY 0xFFFFFFFE + +static void tas2770_reset(struct tas2770_priv *tas2770) +{ + if (tas2770->reset_gpio) { + gpiod_set_value_cansleep(tas2770->reset_gpio, 0); + msleep(20); + gpiod_set_value_cansleep(tas2770->reset_gpio, 1); + usleep_range(1000, 2000); + } + + snd_soc_component_write(tas2770->component, TAS2770_SW_RST, + TAS2770_RST); + usleep_range(1000, 2000); +} + +static int tas2770_update_pwr_ctrl(struct tas2770_priv *tas2770) +{ + struct snd_soc_component *component = tas2770->component; + unsigned int val; + int ret; + + if (tas2770->dac_powered) + val = tas2770->unmuted ? + TAS2770_PWR_CTRL_ACTIVE : TAS2770_PWR_CTRL_MUTE; + else + val = TAS2770_PWR_CTRL_SHUTDOWN; + + ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, + TAS2770_PWR_CTRL_MASK, val); + if (ret < 0) + return ret; + + return 0; +} + +#ifdef CONFIG_PM +static int tas2770_codec_suspend(struct snd_soc_component *component) +{ + struct tas2770_priv *tas2770 = snd_soc_component_get_drvdata(component); + int ret = 0; + + regcache_cache_only(tas2770->regmap, true); + regcache_mark_dirty(tas2770->regmap); + + if (tas2770->sdz_gpio) { + gpiod_set_value_cansleep(tas2770->sdz_gpio, 0); + } else { + ret = snd_soc_component_update_bits(component, TAS2770_PWR_CTRL, + TAS2770_PWR_CTRL_MASK, + TAS2770_PWR_CTRL_SHUTDOWN); + if (ret < 0) { + regcache_cache_only(tas2770->regmap, false); + regcache_sync(tas2770->regmap); + return ret; + } + + ret = 0; + } + + return ret; +} + +static int tas2770_codec_resume(struct snd_soc_component *component) +{ + struct tas2770_priv *tas2770 = snd_soc_component_get_drvdata(component); + int ret; + + if (tas2770->sdz_gpio) { + gpiod_set_value_cansleep(tas2770->sdz_gpio, 1); + usleep_range(1000, 2000); + } else { + ret = tas2770_update_pwr_ctrl(tas2770); + if (ret < 0) + return ret; + } + + regcache_cache_only(tas2770->regmap, false); + + return regcache_sync(tas2770->regmap); +} +#else +#define tas2770_codec_suspend NULL +#define tas2770_codec_resume NULL +#endif + +static const char * const tas2770_ASI1_src[] = { + "I2C offset", "Left", "Right", "LeftRightDiv2", +}; + +static SOC_ENUM_SINGLE_DECL( + tas2770_ASI1_src_enum, TAS2770_TDM_CFG_REG2, + 4, tas2770_ASI1_src); + +static const struct snd_kcontrol_new tas2770_asi1_mux = + SOC_DAPM_ENUM("ASI1 Source", tas2770_ASI1_src_enum); + +static int tas2770_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 tas2770_priv *tas2770 = + snd_soc_component_get_drvdata(component); + int ret; + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + tas2770->dac_powered = 1; + ret = tas2770_update_pwr_ctrl(tas2770); + break; + case SND_SOC_DAPM_PRE_PMD: + tas2770->dac_powered = 0; + ret = tas2770_update_pwr_ctrl(tas2770); + break; + default: + dev_err(tas2770->dev, "Not supported evevt\n"); + return -EINVAL; + } + + return ret; +} + +static const struct snd_kcontrol_new isense_switch = + SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 3, 1, 1); +static const struct snd_kcontrol_new vsense_switch = + SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 2, 1, 1); + +static const struct snd_soc_dapm_widget tas2770_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, &tas2770_asi1_mux), + SND_SOC_DAPM_SWITCH("ISENSE", TAS2770_PWR_CTRL, 3, 1, &isense_switch), + SND_SOC_DAPM_SWITCH("VSENSE", TAS2770_PWR_CTRL, 2, 1, &vsense_switch), + SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2770_dac_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), + SND_SOC_DAPM_OUTPUT("OUT"), + SND_SOC_DAPM_SIGGEN("VMON"), + SND_SOC_DAPM_SIGGEN("IMON") +}; + +static const struct snd_soc_dapm_route tas2770_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 int tas2770_mute(struct snd_soc_dai *dai, int mute, int direction) +{ + struct snd_soc_component *component = dai->component; + struct tas2770_priv *tas2770 = + snd_soc_component_get_drvdata(component); + + tas2770->unmuted = !mute; + return tas2770_update_pwr_ctrl(tas2770); +} + +static int tas2770_set_bitwidth(struct tas2770_priv *tas2770, int bitwidth) +{ + int ret; + struct snd_soc_component *component = tas2770->component; + + switch (bitwidth) { + case SNDRV_PCM_FORMAT_S16_LE: + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2, + TAS2770_TDM_CFG_REG2_RXW_MASK, + TAS2770_TDM_CFG_REG2_RXW_16BITS); + tas2770->v_sense_slot = tas2770->i_sense_slot + 2; + break; + case SNDRV_PCM_FORMAT_S24_LE: + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2, + TAS2770_TDM_CFG_REG2_RXW_MASK, + TAS2770_TDM_CFG_REG2_RXW_24BITS); + tas2770->v_sense_slot = tas2770->i_sense_slot + 4; + break; + case SNDRV_PCM_FORMAT_S32_LE: + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2, + TAS2770_TDM_CFG_REG2_RXW_MASK, + TAS2770_TDM_CFG_REG2_RXW_32BITS); + tas2770->v_sense_slot = tas2770->i_sense_slot + 4; + break; + + default: + return -EINVAL; + } + + if (ret < 0) + return ret; + + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG5, + TAS2770_TDM_CFG_REG5_VSNS_MASK | + TAS2770_TDM_CFG_REG5_50_MASK, + TAS2770_TDM_CFG_REG5_VSNS_ENABLE | + tas2770->v_sense_slot); + if (ret < 0) + return ret; + + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG6, + TAS2770_TDM_CFG_REG6_ISNS_MASK | + TAS2770_TDM_CFG_REG6_50_MASK, + TAS2770_TDM_CFG_REG6_ISNS_ENABLE | + tas2770->i_sense_slot); + if (ret < 0) + return ret; + + return 0; +} + +static int tas2770_set_samplerate(struct tas2770_priv *tas2770, int samplerate) +{ + struct snd_soc_component *component = tas2770->component; + int ramp_rate_val; + int ret; + + switch (samplerate) { + case 48000: + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ | + TAS2770_TDM_CFG_REG0_31_44_1_48KHZ; + break; + case 44100: + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ | + TAS2770_TDM_CFG_REG0_31_44_1_48KHZ; + break; + case 96000: + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ | + TAS2770_TDM_CFG_REG0_31_88_2_96KHZ; + break; + case 88200: + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ | + TAS2770_TDM_CFG_REG0_31_88_2_96KHZ; + break; + case 192000: + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_48KHZ | + TAS2770_TDM_CFG_REG0_31_176_4_192KHZ; + break; + case 176400: + ramp_rate_val = TAS2770_TDM_CFG_REG0_SMP_44_1KHZ | + TAS2770_TDM_CFG_REG0_31_176_4_192KHZ; + break; + default: + return -EINVAL; + } + + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, + TAS2770_TDM_CFG_REG0_SMP_MASK | + TAS2770_TDM_CFG_REG0_31_MASK, + ramp_rate_val); + if (ret < 0) + return ret; + + return 0; +} + +static int tas2770_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 tas2770_priv *tas2770 = + snd_soc_component_get_drvdata(component); + int ret; + + ret = tas2770_set_bitwidth(tas2770, params_format(params)); + if (ret) + return ret; + + return tas2770_set_samplerate(tas2770, params_rate(params)); +} + +static int tas2770_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + struct tas2770_priv *tas2770 = + snd_soc_component_get_drvdata(component); + u8 tdm_rx_start_slot = 0, invert_fpol = 0, fpol_preinv = 0, asi_cfg_1 = 0; + int ret; + + switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { + case SND_SOC_DAIFMT_CBC_CFC: + break; + default: + dev_err(tas2770->dev, "ASI invalid DAI clocking\n"); + return -EINVAL; + } + + switch (fmt & SND_SOC_DAIFMT_INV_MASK) { + case SND_SOC_DAIFMT_NB_IF: + invert_fpol = 1; + fallthrough; + case SND_SOC_DAIFMT_NB_NF: + asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_RSING; + break; + case SND_SOC_DAIFMT_IB_IF: + invert_fpol = 1; + fallthrough; + case SND_SOC_DAIFMT_IB_NF: + asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_FALING; + break; + default: + dev_err(tas2770->dev, "ASI format Inverse is not found\n"); + return -EINVAL; + } + + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1, + TAS2770_TDM_CFG_REG1_RX_MASK, + asi_cfg_1); + if (ret < 0) + return ret; + + switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_I2S: + tdm_rx_start_slot = 1; + fpol_preinv = 0; + break; + case SND_SOC_DAIFMT_DSP_A: + tdm_rx_start_slot = 0; + fpol_preinv = 1; + break; + case SND_SOC_DAIFMT_DSP_B: + tdm_rx_start_slot = 1; + fpol_preinv = 1; + break; + case SND_SOC_DAIFMT_LEFT_J: + tdm_rx_start_slot = 0; + fpol_preinv = 1; + break; + default: + dev_err(tas2770->dev, + "DAI Format is not found, fmt=0x%x\n", fmt); + return -EINVAL; + } + + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1, + TAS2770_TDM_CFG_REG1_MASK, + (tdm_rx_start_slot << TAS2770_TDM_CFG_REG1_51_SHIFT)); + if (ret < 0) + return ret; + + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG0, + TAS2770_TDM_CFG_REG0_FPOL_MASK, + (fpol_preinv ^ invert_fpol) + ? TAS2770_TDM_CFG_REG0_FPOL_RSING + : TAS2770_TDM_CFG_REG0_FPOL_FALING); + if (ret < 0) + return ret; + + return 0; +} + +static int tas2770_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; + int left_slot, right_slot; + int ret; + + if (tx_mask == 0 || rx_mask != 0) + return -EINVAL; + + left_slot = __ffs(tx_mask); + tx_mask &= ~(1 << left_slot); + if (tx_mask == 0) { + right_slot = left_slot; + } else { + right_slot = __ffs(tx_mask); + tx_mask &= ~(1 << right_slot); + } + + if (tx_mask != 0 || left_slot >= slots || right_slot >= slots) + return -EINVAL; + + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3, + TAS2770_TDM_CFG_REG3_30_MASK, + (left_slot << TAS2770_TDM_CFG_REG3_30_SHIFT)); + if (ret < 0) + return ret; + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3, + TAS2770_TDM_CFG_REG3_RXS_MASK, + (right_slot << TAS2770_TDM_CFG_REG3_RXS_SHIFT)); + if (ret < 0) + return ret; + + switch (slot_width) { + case 16: + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2, + TAS2770_TDM_CFG_REG2_RXS_MASK, + TAS2770_TDM_CFG_REG2_RXS_16BITS); + break; + case 24: + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2, + TAS2770_TDM_CFG_REG2_RXS_MASK, + TAS2770_TDM_CFG_REG2_RXS_24BITS); + break; + case 32: + ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG2, + TAS2770_TDM_CFG_REG2_RXS_MASK, + TAS2770_TDM_CFG_REG2_RXS_32BITS); + break; + case 0: + /* Do not change slot width */ + ret = 0; + break; + default: + ret = -EINVAL; + } + + if (ret < 0) + return ret; + + return 0; +} + +static const struct snd_soc_dai_ops tas2770_dai_ops = { + .mute_stream = tas2770_mute, + .hw_params = tas2770_hw_params, + .set_fmt = tas2770_set_fmt, + .set_tdm_slot = tas2770_set_dai_tdm_slot, + .no_capture_mute = 1, +}; + +#define TAS2770_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +#define TAS2770_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\ + SNDRV_PCM_RATE_96000 |\ + SNDRV_PCM_RATE_192000\ + ) + +static struct snd_soc_dai_driver tas2770_dai_driver[] = { + { + .name = "tas2770 ASI1", + .id = 0, + .playback = { + .stream_name = "ASI1 Playback", + .channels_min = 1, + .channels_max = 2, + .rates = TAS2770_RATES, + .formats = TAS2770_FORMATS, + }, + .capture = { + .stream_name = "ASI1 Capture", + .channels_min = 0, + .channels_max = 2, + .rates = TAS2770_RATES, + .formats = TAS2770_FORMATS, + }, + .ops = &tas2770_dai_ops, + .symmetric_rate = 1, + }, +}; + +static const struct regmap_config tas2770_i2c_regmap; + +static int tas2770_codec_probe(struct snd_soc_component *component) +{ + struct tas2770_priv *tas2770 = + snd_soc_component_get_drvdata(component); + + tas2770->component = component; + + if (tas2770->sdz_gpio) { + gpiod_set_value_cansleep(tas2770->sdz_gpio, 1); + usleep_range(1000, 2000); + } + + tas2770_reset(tas2770); + regmap_reinit_cache(tas2770->regmap, &tas2770_i2c_regmap); + + return 0; +} + +static DECLARE_TLV_DB_SCALE(tas2770_digital_tlv, 1100, 50, 0); +static DECLARE_TLV_DB_SCALE(tas2770_playback_volume, -12750, 50, 0); + +static const struct snd_kcontrol_new tas2770_snd_controls[] = { + SOC_SINGLE_TLV("Speaker Playback Volume", TAS2770_PLAY_CFG_REG2, + 0, TAS2770_PLAY_CFG_REG2_VMAX, 1, tas2770_playback_volume), + SOC_SINGLE_TLV("Amp Gain Volume", TAS2770_PLAY_CFG_REG0, 0, 0x14, 0, + tas2770_digital_tlv), +}; + +static const struct snd_soc_component_driver soc_component_driver_tas2770 = { + .probe = tas2770_codec_probe, + .suspend = tas2770_codec_suspend, + .resume = tas2770_codec_resume, + .controls = tas2770_snd_controls, + .num_controls = ARRAY_SIZE(tas2770_snd_controls), + .dapm_widgets = tas2770_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tas2770_dapm_widgets), + .dapm_routes = tas2770_audio_map, + .num_dapm_routes = ARRAY_SIZE(tas2770_audio_map), + .idle_bias_on = 1, + .endianness = 1, +}; + +static int tas2770_register_codec(struct tas2770_priv *tas2770) +{ + return devm_snd_soc_register_component(tas2770->dev, + &soc_component_driver_tas2770, + tas2770_dai_driver, ARRAY_SIZE(tas2770_dai_driver)); +} + +static const struct reg_default tas2770_reg_defaults[] = { + { TAS2770_PAGE, 0x00 }, + { TAS2770_SW_RST, 0x00 }, + { TAS2770_PWR_CTRL, 0x0e }, + { TAS2770_PLAY_CFG_REG0, 0x10 }, + { TAS2770_PLAY_CFG_REG1, 0x01 }, + { TAS2770_PLAY_CFG_REG2, 0x00 }, + { TAS2770_MSC_CFG_REG0, 0x07 }, + { TAS2770_TDM_CFG_REG1, 0x02 }, + { TAS2770_TDM_CFG_REG2, 0x0a }, + { TAS2770_TDM_CFG_REG3, 0x10 }, + { TAS2770_INT_MASK_REG0, 0xfc }, + { TAS2770_INT_MASK_REG1, 0xb1 }, + { TAS2770_INT_CFG, 0x05 }, + { TAS2770_MISC_IRQ, 0x81 }, + { TAS2770_CLK_CGF, 0x0c }, + +}; + +static bool tas2770_volatile(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TAS2770_PAGE: /* regmap implementation requires this */ + case TAS2770_SW_RST: /* always clears after write */ + case TAS2770_BO_PRV_REG0:/* has a self clearing bit */ + case TAS2770_LVE_INT_REG0: + case TAS2770_LVE_INT_REG1: + case TAS2770_LAT_INT_REG0:/* Sticky interrupt flags */ + case TAS2770_LAT_INT_REG1:/* Sticky interrupt flags */ + case TAS2770_VBAT_MSB: + case TAS2770_VBAT_LSB: + case TAS2770_TEMP_MSB: + case TAS2770_TEMP_LSB: + return true; + } + + return false; +} + +static bool tas2770_writeable(struct device *dev, unsigned int reg) +{ + switch (reg) { + case TAS2770_LVE_INT_REG0: + case TAS2770_LVE_INT_REG1: + case TAS2770_LAT_INT_REG0: + case TAS2770_LAT_INT_REG1: + case TAS2770_VBAT_MSB: + case TAS2770_VBAT_LSB: + case TAS2770_TEMP_MSB: + case TAS2770_TEMP_LSB: + case TAS2770_TDM_CLK_DETC: + case TAS2770_REV_AND_GPID: + return false; + } + + return true; +} + +static const struct regmap_range_cfg tas2770_regmap_ranges[] = { + { + .range_min = 0, + .range_max = 1 * 128, + .selector_reg = TAS2770_PAGE, + .selector_mask = 0xff, + .selector_shift = 0, + .window_start = 0, + .window_len = 128, + }, +}; + +static const struct regmap_config tas2770_i2c_regmap = { + .reg_bits = 8, + .val_bits = 8, + .writeable_reg = tas2770_writeable, + .volatile_reg = tas2770_volatile, + .reg_defaults = tas2770_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tas2770_reg_defaults), + .cache_type = REGCACHE_RBTREE, + .ranges = tas2770_regmap_ranges, + .num_ranges = ARRAY_SIZE(tas2770_regmap_ranges), + .max_register = 1 * 128, +}; + +static int tas2770_parse_dt(struct device *dev, struct tas2770_priv *tas2770) +{ + int rc = 0; + + rc = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no", + &tas2770->i_sense_slot); + if (rc) { + dev_info(tas2770->dev, "Property %s is missing setting default slot\n", + "ti,imon-slot-no"); + + tas2770->i_sense_slot = 0; + } + + rc = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no", + &tas2770->v_sense_slot); + if (rc) { + dev_info(tas2770->dev, "Property %s is missing setting default slot\n", + "ti,vmon-slot-no"); + + tas2770->v_sense_slot = 2; + } + + tas2770->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); + if (IS_ERR(tas2770->sdz_gpio)) { + if (PTR_ERR(tas2770->sdz_gpio) == -EPROBE_DEFER) + return -EPROBE_DEFER; + + tas2770->sdz_gpio = NULL; + } + + return 0; +} + +static int tas2770_i2c_probe(struct i2c_client *client) +{ + struct tas2770_priv *tas2770; + int result; + + tas2770 = devm_kzalloc(&client->dev, sizeof(struct tas2770_priv), + GFP_KERNEL); + if (!tas2770) + return -ENOMEM; + + tas2770->dev = &client->dev; + i2c_set_clientdata(client, tas2770); + dev_set_drvdata(&client->dev, tas2770); + + tas2770->regmap = devm_regmap_init_i2c(client, &tas2770_i2c_regmap); + if (IS_ERR(tas2770->regmap)) { + result = PTR_ERR(tas2770->regmap); + dev_err(&client->dev, "Failed to allocate register map: %d\n", + result); + return result; + } + + if (client->dev.of_node) { + result = tas2770_parse_dt(&client->dev, tas2770); + if (result) { + dev_err(tas2770->dev, "%s: Failed to parse devicetree\n", + __func__); + return result; + } + } + + tas2770->reset_gpio = devm_gpiod_get_optional(tas2770->dev, "reset", + GPIOD_OUT_HIGH); + if (IS_ERR(tas2770->reset_gpio)) { + if (PTR_ERR(tas2770->reset_gpio) == -EPROBE_DEFER) { + tas2770->reset_gpio = NULL; + return -EPROBE_DEFER; + } + } + + result = tas2770_register_codec(tas2770); + if (result) + dev_err(tas2770->dev, "Register codec failed.\n"); + + return result; +} + +static const struct i2c_device_id tas2770_i2c_id[] = { + { "tas2770", 0}, + { } +}; +MODULE_DEVICE_TABLE(i2c, tas2770_i2c_id); + +#if defined(CONFIG_OF) +static const struct of_device_id tas2770_of_match[] = { + { .compatible = "ti,tas2770" }, + {}, +}; +MODULE_DEVICE_TABLE(of, tas2770_of_match); +#endif + +static struct i2c_driver tas2770_i2c_driver = { + .driver = { + .name = "tas2770", + .of_match_table = of_match_ptr(tas2770_of_match), + }, + .probe_new = tas2770_i2c_probe, + .id_table = tas2770_i2c_id, +}; +module_i2c_driver(tas2770_i2c_driver); + +MODULE_AUTHOR("Shi Fu "); +MODULE_DESCRIPTION("TAS2770 I2C Smart Amplifier driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3