diff options
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/codecs/tas571x.c | 928 |
1 files changed, 928 insertions, 0 deletions
diff --git a/sound/soc/codecs/tas571x.c b/sound/soc/codecs/tas571x.c new file mode 100644 index 000000000..354f17a2f --- /dev/null +++ b/sound/soc/codecs/tas571x.c @@ -0,0 +1,928 @@ +/* + * TAS571x amplifier audio driver + * + * Copyright (C) 2015 Google, Inc. + * Copyright (c) 2013 Daniel Mack <zonque@gmail.com> + * + * TAS5721 support: + * Copyright (C) 2016 Petr Kulhavy, Barix AG <petr@barix.com> + * + * TAS5707 support: + * Copyright (C) 2018 Jerome Brunet, Baylibre SAS <jbrunet@baylibre.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/gpio/consumer.h> +#include <linux/i2c.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/stddef.h> +#include <sound/pcm_params.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include <asm/unaligned.h> + +#include "tas571x.h" + +#define TAS571X_MAX_SUPPLIES 6 + +struct tas571x_chip { + const char *const *supply_names; + int num_supply_names; + const struct snd_kcontrol_new *controls; + int num_controls; + const struct regmap_config *regmap_config; + int vol_reg_size; +}; + +struct tas571x_private { + const struct tas571x_chip *chip; + struct regmap *regmap; + struct regulator_bulk_data supplies[TAS571X_MAX_SUPPLIES]; + struct clk *mclk; + unsigned int format; + struct gpio_desc *reset_gpio; + struct gpio_desc *pdn_gpio; + struct snd_soc_component_driver component_driver; +}; + +static int tas571x_register_size(struct tas571x_private *priv, unsigned int reg) +{ + switch (reg) { + case TAS571X_MVOL_REG: + case TAS571X_CH1_VOL_REG: + case TAS571X_CH2_VOL_REG: + return priv->chip->vol_reg_size; + case TAS571X_INPUT_MUX_REG: + case TAS571X_CH4_SRC_SELECT_REG: + case TAS571X_PWM_MUX_REG: + case TAS5717_CH1_RIGHT_CH_MIX_REG: + case TAS5717_CH1_LEFT_CH_MIX_REG: + case TAS5717_CH2_LEFT_CH_MIX_REG: + case TAS5717_CH2_RIGHT_CH_MIX_REG: + return 4; + default: + return 1; + } +} + +static int tas571x_reg_write(void *context, unsigned int reg, + unsigned int value) +{ + struct i2c_client *client = context; + struct tas571x_private *priv = i2c_get_clientdata(client); + unsigned int i, size; + uint8_t buf[5]; + int ret; + + size = tas571x_register_size(priv, reg); + buf[0] = reg; + + for (i = size; i >= 1; --i) { + buf[i] = value; + value >>= 8; + } + + ret = i2c_master_send(client, buf, size + 1); + if (ret == size + 1) + return 0; + else if (ret < 0) + return ret; + else + return -EIO; +} + +static int tas571x_reg_read(void *context, unsigned int reg, + unsigned int *value) +{ + struct i2c_client *client = context; + struct tas571x_private *priv = i2c_get_clientdata(client); + uint8_t send_buf, recv_buf[4]; + struct i2c_msg msgs[2]; + unsigned int size; + unsigned int i; + int ret; + + size = tas571x_register_size(priv, reg); + send_buf = reg; + + msgs[0].addr = client->addr; + msgs[0].len = sizeof(send_buf); + msgs[0].buf = &send_buf; + msgs[0].flags = 0; + + msgs[1].addr = client->addr; + msgs[1].len = size; + msgs[1].buf = recv_buf; + msgs[1].flags = I2C_M_RD; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) + return ret; + else if (ret != ARRAY_SIZE(msgs)) + return -EIO; + + *value = 0; + + for (i = 0; i < size; i++) { + *value <<= 8; + *value |= recv_buf[i]; + } + + return 0; +} + +/* + * register write for 8- and 20-byte registers + */ +static int tas571x_reg_write_multiword(struct i2c_client *client, + unsigned int reg, const long values[], size_t len) +{ + size_t i; + uint8_t *buf, *p; + int ret; + size_t send_size = 1 + len * sizeof(uint32_t); + + buf = kzalloc(send_size, GFP_KERNEL | GFP_DMA); + if (!buf) + return -ENOMEM; + buf[0] = reg; + + for (i = 0, p = buf + 1; i < len; i++, p += sizeof(uint32_t)) + put_unaligned_be32(values[i], p); + + ret = i2c_master_send(client, buf, send_size); + + kfree(buf); + + if (ret == send_size) + return 0; + else if (ret < 0) + return ret; + else + return -EIO; +} + +/* + * register read for 8- and 20-byte registers + */ +static int tas571x_reg_read_multiword(struct i2c_client *client, + unsigned int reg, long values[], size_t len) +{ + unsigned int i; + uint8_t send_buf; + uint8_t *recv_buf, *p; + struct i2c_msg msgs[2]; + unsigned int recv_size = len * sizeof(uint32_t); + int ret; + + recv_buf = kzalloc(recv_size, GFP_KERNEL | GFP_DMA); + if (!recv_buf) + return -ENOMEM; + + send_buf = reg; + + msgs[0].addr = client->addr; + msgs[0].len = sizeof(send_buf); + msgs[0].buf = &send_buf; + msgs[0].flags = 0; + + msgs[1].addr = client->addr; + msgs[1].len = recv_size; + msgs[1].buf = recv_buf; + msgs[1].flags = I2C_M_RD; + + ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) + goto err_ret; + else if (ret != ARRAY_SIZE(msgs)) { + ret = -EIO; + goto err_ret; + } + + for (i = 0, p = recv_buf; i < len; i++, p += sizeof(uint32_t)) + values[i] = get_unaligned_be32(p); + +err_ret: + kfree(recv_buf); + return ret; +} + +/* + * Integer array controls for setting biquad, mixer, DRC coefficients. + * According to the datasheet each coefficient is effectively 26bits, + * i.e. stored as 32bits, where bits [31:26] are ignored. + * TI's TAS57xx Graphical Development Environment tool however produces + * coefficients with more than 26 bits. For this reason we allow values + * in the full 32-bits reange. + * The coefficients are ordered as given in the TAS571x data sheet: + * b0, b1, b2, a1, a2 + */ + +static int tas571x_coefficient_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + int numcoef = kcontrol->private_value >> 16; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = numcoef; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0xffffffff; + return 0; +} + +static int tas571x_coefficient_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct i2c_client *i2c = to_i2c_client(component->dev); + int numcoef = kcontrol->private_value >> 16; + int index = kcontrol->private_value & 0xffff; + + return tas571x_reg_read_multiword(i2c, index, + ucontrol->value.integer.value, numcoef); +} + +static int tas571x_coefficient_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); + struct i2c_client *i2c = to_i2c_client(component->dev); + int numcoef = kcontrol->private_value >> 16; + int index = kcontrol->private_value & 0xffff; + + return tas571x_reg_write_multiword(i2c, index, + ucontrol->value.integer.value, numcoef); +} + +static int tas571x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int format) +{ + struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component); + + priv->format = format; + + return 0; +} + +static int tas571x_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *dai) +{ + struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component); + u32 val; + + switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) { + case SND_SOC_DAIFMT_RIGHT_J: + val = 0x00; + break; + case SND_SOC_DAIFMT_I2S: + val = 0x03; + break; + case SND_SOC_DAIFMT_LEFT_J: + val = 0x06; + break; + default: + return -EINVAL; + } + + if (params_width(params) >= 24) + val += 2; + else if (params_width(params) >= 20) + val += 1; + + return regmap_update_bits(priv->regmap, TAS571X_SDI_REG, + TAS571X_SDI_FMT_MASK, val); +} + +static int tas571x_mute(struct snd_soc_dai *dai, int mute) +{ + struct snd_soc_component *component = dai->component; + u8 sysctl2; + int ret; + + sysctl2 = mute ? TAS571X_SYS_CTRL_2_SDN_MASK : 0; + + ret = snd_soc_component_update_bits(component, + TAS571X_SYS_CTRL_2_REG, + TAS571X_SYS_CTRL_2_SDN_MASK, + sysctl2); + usleep_range(1000, 2000); + + return ret; +} + +static int tas571x_set_bias_level(struct snd_soc_component *component, + enum snd_soc_bias_level level) +{ + struct tas571x_private *priv = snd_soc_component_get_drvdata(component); + int ret; + + switch (level) { + case SND_SOC_BIAS_ON: + break; + case SND_SOC_BIAS_PREPARE: + break; + case SND_SOC_BIAS_STANDBY: + if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { + if (!IS_ERR(priv->mclk)) { + ret = clk_prepare_enable(priv->mclk); + if (ret) { + dev_err(component->dev, + "Failed to enable master clock: %d\n", + ret); + return ret; + } + } + } + break; + case SND_SOC_BIAS_OFF: + if (!IS_ERR(priv->mclk)) + clk_disable_unprepare(priv->mclk); + break; + } + + return 0; +} + +static const struct snd_soc_dai_ops tas571x_dai_ops = { + .set_fmt = tas571x_set_dai_fmt, + .hw_params = tas571x_hw_params, + .digital_mute = tas571x_mute, +}; + + +#define BIQUAD_COEFS(xname, reg) \ +{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ + .info = tas571x_coefficient_info, \ + .get = tas571x_coefficient_get,\ + .put = tas571x_coefficient_put, \ + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ + .private_value = reg | (5 << 16) } + +static const char *const tas5711_supply_names[] = { + "AVDD", + "DVDD", + "PVDD_A", + "PVDD_B", + "PVDD_C", + "PVDD_D", +}; + +static const DECLARE_TLV_DB_SCALE(tas5711_volume_tlv, -10350, 50, 1); + +static const struct snd_kcontrol_new tas5711_controls[] = { + SOC_SINGLE_TLV("Master Volume", + TAS571X_MVOL_REG, + 0, 0xff, 1, tas5711_volume_tlv), + SOC_DOUBLE_R_TLV("Speaker Volume", + TAS571X_CH1_VOL_REG, + TAS571X_CH2_VOL_REG, + 0, 0xff, 1, tas5711_volume_tlv), + SOC_DOUBLE("Speaker Switch", + TAS571X_SOFT_MUTE_REG, + TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, + 1, 1), +}; + +static const struct regmap_range tas571x_readonly_regs_range[] = { + regmap_reg_range(TAS571X_CLK_CTRL_REG, TAS571X_DEV_ID_REG), +}; + +static const struct regmap_range tas571x_volatile_regs_range[] = { + regmap_reg_range(TAS571X_CLK_CTRL_REG, TAS571X_ERR_STATUS_REG), + regmap_reg_range(TAS571X_OSC_TRIM_REG, TAS571X_OSC_TRIM_REG), +}; + +static const struct regmap_access_table tas571x_write_regs = { + .no_ranges = tas571x_readonly_regs_range, + .n_no_ranges = ARRAY_SIZE(tas571x_readonly_regs_range), +}; + +static const struct regmap_access_table tas571x_volatile_regs = { + .yes_ranges = tas571x_volatile_regs_range, + .n_yes_ranges = ARRAY_SIZE(tas571x_volatile_regs_range), + +}; + +static const struct reg_default tas5711_reg_defaults[] = { + { 0x04, 0x05 }, + { 0x05, 0x40 }, + { 0x06, 0x00 }, + { 0x07, 0xff }, + { 0x08, 0x30 }, + { 0x09, 0x30 }, + { 0x1b, 0x82 }, +}; + +static const struct regmap_config tas5711_regmap_config = { + .reg_bits = 8, + .val_bits = 32, + .max_register = 0xff, + .reg_read = tas571x_reg_read, + .reg_write = tas571x_reg_write, + .reg_defaults = tas5711_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tas5711_reg_defaults), + .cache_type = REGCACHE_RBTREE, + .wr_table = &tas571x_write_regs, + .volatile_table = &tas571x_volatile_regs, +}; + +static const struct tas571x_chip tas5711_chip = { + .supply_names = tas5711_supply_names, + .num_supply_names = ARRAY_SIZE(tas5711_supply_names), + .controls = tas5711_controls, + .num_controls = ARRAY_SIZE(tas5711_controls), + .regmap_config = &tas5711_regmap_config, + .vol_reg_size = 1, +}; + +static const struct regmap_range tas5707_volatile_regs_range[] = { + regmap_reg_range(TAS571X_CLK_CTRL_REG, TAS571X_ERR_STATUS_REG), + regmap_reg_range(TAS571X_OSC_TRIM_REG, TAS571X_OSC_TRIM_REG), + regmap_reg_range(TAS5707_CH1_BQ0_REG, TAS5707_CH2_BQ6_REG), +}; + +static const struct regmap_access_table tas5707_volatile_regs = { + .yes_ranges = tas5707_volatile_regs_range, + .n_yes_ranges = ARRAY_SIZE(tas5707_volatile_regs_range), + +}; + +static const DECLARE_TLV_DB_SCALE(tas5707_volume_tlv, -7900, 50, 1); + +static const char * const tas5707_volume_slew_step_txt[] = { + "256", "512", "1024", "2048", +}; + +static const unsigned int tas5707_volume_slew_step_values[] = { + 3, 0, 1, 2, +}; + +static SOC_VALUE_ENUM_SINGLE_DECL(tas5707_volume_slew_step_enum, + TAS571X_VOL_CFG_REG, 0, 0x3, + tas5707_volume_slew_step_txt, + tas5707_volume_slew_step_values); + +static const struct snd_kcontrol_new tas5707_controls[] = { + SOC_SINGLE_TLV("Master Volume", + TAS571X_MVOL_REG, + 0, 0xff, 1, tas5707_volume_tlv), + SOC_DOUBLE_R_TLV("Speaker Volume", + TAS571X_CH1_VOL_REG, + TAS571X_CH2_VOL_REG, + 0, 0xff, 1, tas5707_volume_tlv), + SOC_DOUBLE("Speaker Switch", + TAS571X_SOFT_MUTE_REG, + TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, + 1, 1), + + SOC_ENUM("Slew Rate Steps", tas5707_volume_slew_step_enum), + + BIQUAD_COEFS("CH1 - Biquad 0", TAS5707_CH1_BQ0_REG), + BIQUAD_COEFS("CH1 - Biquad 1", TAS5707_CH1_BQ1_REG), + BIQUAD_COEFS("CH1 - Biquad 2", TAS5707_CH1_BQ2_REG), + BIQUAD_COEFS("CH1 - Biquad 3", TAS5707_CH1_BQ3_REG), + BIQUAD_COEFS("CH1 - Biquad 4", TAS5707_CH1_BQ4_REG), + BIQUAD_COEFS("CH1 - Biquad 5", TAS5707_CH1_BQ5_REG), + BIQUAD_COEFS("CH1 - Biquad 6", TAS5707_CH1_BQ6_REG), + + BIQUAD_COEFS("CH2 - Biquad 0", TAS5707_CH2_BQ0_REG), + BIQUAD_COEFS("CH2 - Biquad 1", TAS5707_CH2_BQ1_REG), + BIQUAD_COEFS("CH2 - Biquad 2", TAS5707_CH2_BQ2_REG), + BIQUAD_COEFS("CH2 - Biquad 3", TAS5707_CH2_BQ3_REG), + BIQUAD_COEFS("CH2 - Biquad 4", TAS5707_CH2_BQ4_REG), + BIQUAD_COEFS("CH2 - Biquad 5", TAS5707_CH2_BQ5_REG), + BIQUAD_COEFS("CH2 - Biquad 6", TAS5707_CH2_BQ6_REG), +}; + +static const struct reg_default tas5707_reg_defaults[] = { + {TAS571X_CLK_CTRL_REG, 0x6c}, + {TAS571X_DEV_ID_REG, 0x70}, + {TAS571X_ERR_STATUS_REG, 0x00}, + {TAS571X_SYS_CTRL_1_REG, 0xa0}, + {TAS571X_SDI_REG, 0x05}, + {TAS571X_SYS_CTRL_2_REG, 0x40}, + {TAS571X_SOFT_MUTE_REG, 0x00}, + {TAS571X_MVOL_REG, 0xff}, + {TAS571X_CH1_VOL_REG, 0x30}, + {TAS571X_CH2_VOL_REG, 0x30}, + {TAS571X_VOL_CFG_REG, 0x91}, + {TAS571X_MODULATION_LIMIT_REG, 0x02}, + {TAS571X_IC_DELAY_CH1_REG, 0xac}, + {TAS571X_IC_DELAY_CH2_REG, 0x54}, + {TAS571X_IC_DELAY_CH3_REG, 0xac}, + {TAS571X_IC_DELAY_CH4_REG, 0x54}, + {TAS571X_START_STOP_PERIOD_REG, 0x0f}, + {TAS571X_OSC_TRIM_REG, 0x82}, + {TAS571X_BKND_ERR_REG, 0x02}, + {TAS571X_INPUT_MUX_REG, 0x17772}, + {TAS571X_PWM_MUX_REG, 0x1021345}, +}; + +static const struct regmap_config tas5707_regmap_config = { + .reg_bits = 8, + .val_bits = 32, + .max_register = 0xff, + .reg_read = tas571x_reg_read, + .reg_write = tas571x_reg_write, + .reg_defaults = tas5707_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tas5707_reg_defaults), + .cache_type = REGCACHE_RBTREE, + .wr_table = &tas571x_write_regs, + .volatile_table = &tas5707_volatile_regs, +}; + +static const struct tas571x_chip tas5707_chip = { + .supply_names = tas5711_supply_names, + .num_supply_names = ARRAY_SIZE(tas5711_supply_names), + .controls = tas5707_controls, + .num_controls = ARRAY_SIZE(tas5707_controls), + .regmap_config = &tas5707_regmap_config, + .vol_reg_size = 1, +}; + +static const char *const tas5717_supply_names[] = { + "AVDD", + "DVDD", + "HPVDD", + "PVDD_AB", + "PVDD_CD", +}; + +static const DECLARE_TLV_DB_SCALE(tas5717_volume_tlv, -10375, 25, 0); + +static const struct snd_kcontrol_new tas5717_controls[] = { + /* MVOL LSB is ignored - see comments in tas571x_i2c_probe() */ + SOC_SINGLE_TLV("Master Volume", + TAS571X_MVOL_REG, 1, 0x1ff, 1, + tas5717_volume_tlv), + SOC_DOUBLE_R_TLV("Speaker Volume", + TAS571X_CH1_VOL_REG, TAS571X_CH2_VOL_REG, + 1, 0x1ff, 1, tas5717_volume_tlv), + SOC_DOUBLE("Speaker Switch", + TAS571X_SOFT_MUTE_REG, + TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, + 1, 1), + + SOC_DOUBLE_R_RANGE("CH1 Mixer Volume", + TAS5717_CH1_LEFT_CH_MIX_REG, + TAS5717_CH1_RIGHT_CH_MIX_REG, + 16, 0, 0x80, 0), + + SOC_DOUBLE_R_RANGE("CH2 Mixer Volume", + TAS5717_CH2_LEFT_CH_MIX_REG, + TAS5717_CH2_RIGHT_CH_MIX_REG, + 16, 0, 0x80, 0), + + /* + * The biquads are named according to the register names. + * Please note that TI's TAS57xx Graphical Development Environment + * tool names them different. + */ + BIQUAD_COEFS("CH1 - Biquad 0", TAS5717_CH1_BQ0_REG), + BIQUAD_COEFS("CH1 - Biquad 1", TAS5717_CH1_BQ1_REG), + BIQUAD_COEFS("CH1 - Biquad 2", TAS5717_CH1_BQ2_REG), + BIQUAD_COEFS("CH1 - Biquad 3", TAS5717_CH1_BQ3_REG), + BIQUAD_COEFS("CH1 - Biquad 4", TAS5717_CH1_BQ4_REG), + BIQUAD_COEFS("CH1 - Biquad 5", TAS5717_CH1_BQ5_REG), + BIQUAD_COEFS("CH1 - Biquad 6", TAS5717_CH1_BQ6_REG), + BIQUAD_COEFS("CH1 - Biquad 7", TAS5717_CH1_BQ7_REG), + BIQUAD_COEFS("CH1 - Biquad 8", TAS5717_CH1_BQ8_REG), + BIQUAD_COEFS("CH1 - Biquad 9", TAS5717_CH1_BQ9_REG), + BIQUAD_COEFS("CH1 - Biquad 10", TAS5717_CH1_BQ10_REG), + BIQUAD_COEFS("CH1 - Biquad 11", TAS5717_CH1_BQ11_REG), + + BIQUAD_COEFS("CH2 - Biquad 0", TAS5717_CH2_BQ0_REG), + BIQUAD_COEFS("CH2 - Biquad 1", TAS5717_CH2_BQ1_REG), + BIQUAD_COEFS("CH2 - Biquad 2", TAS5717_CH2_BQ2_REG), + BIQUAD_COEFS("CH2 - Biquad 3", TAS5717_CH2_BQ3_REG), + BIQUAD_COEFS("CH2 - Biquad 4", TAS5717_CH2_BQ4_REG), + BIQUAD_COEFS("CH2 - Biquad 5", TAS5717_CH2_BQ5_REG), + BIQUAD_COEFS("CH2 - Biquad 6", TAS5717_CH2_BQ6_REG), + BIQUAD_COEFS("CH2 - Biquad 7", TAS5717_CH2_BQ7_REG), + BIQUAD_COEFS("CH2 - Biquad 8", TAS5717_CH2_BQ8_REG), + BIQUAD_COEFS("CH2 - Biquad 9", TAS5717_CH2_BQ9_REG), + BIQUAD_COEFS("CH2 - Biquad 10", TAS5717_CH2_BQ10_REG), + BIQUAD_COEFS("CH2 - Biquad 11", TAS5717_CH2_BQ11_REG), + + BIQUAD_COEFS("CH3 - Biquad 0", TAS5717_CH3_BQ0_REG), + BIQUAD_COEFS("CH3 - Biquad 1", TAS5717_CH3_BQ1_REG), + + BIQUAD_COEFS("CH4 - Biquad 0", TAS5717_CH4_BQ0_REG), + BIQUAD_COEFS("CH4 - Biquad 1", TAS5717_CH4_BQ1_REG), +}; + +static const struct reg_default tas5717_reg_defaults[] = { + { 0x04, 0x05 }, + { 0x05, 0x40 }, + { 0x06, 0x00 }, + { 0x07, 0x03ff }, + { 0x08, 0x00c0 }, + { 0x09, 0x00c0 }, + { 0x1b, 0x82 }, + { TAS5717_CH1_RIGHT_CH_MIX_REG, 0x0 }, + { TAS5717_CH1_LEFT_CH_MIX_REG, 0x800000}, + { TAS5717_CH2_LEFT_CH_MIX_REG, 0x0 }, + { TAS5717_CH2_RIGHT_CH_MIX_REG, 0x800000}, +}; + +static const struct regmap_config tas5717_regmap_config = { + .reg_bits = 8, + .val_bits = 32, + .max_register = 0xff, + .reg_read = tas571x_reg_read, + .reg_write = tas571x_reg_write, + .reg_defaults = tas5717_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tas5717_reg_defaults), + .cache_type = REGCACHE_RBTREE, + .wr_table = &tas571x_write_regs, + .volatile_table = &tas571x_volatile_regs, +}; + +/* This entry is reused for tas5719 as the software interface is identical. */ +static const struct tas571x_chip tas5717_chip = { + .supply_names = tas5717_supply_names, + .num_supply_names = ARRAY_SIZE(tas5717_supply_names), + .controls = tas5717_controls, + .num_controls = ARRAY_SIZE(tas5717_controls), + .regmap_config = &tas5717_regmap_config, + .vol_reg_size = 2, +}; + +static const char *const tas5721_supply_names[] = { + "AVDD", + "DVDD", + "DRVDD", + "PVDD", +}; + +static const struct snd_kcontrol_new tas5721_controls[] = { + SOC_SINGLE_TLV("Master Volume", + TAS571X_MVOL_REG, + 0, 0xff, 1, tas5711_volume_tlv), + SOC_DOUBLE_R_TLV("Speaker Volume", + TAS571X_CH1_VOL_REG, + TAS571X_CH2_VOL_REG, + 0, 0xff, 1, tas5711_volume_tlv), + SOC_DOUBLE("Speaker Switch", + TAS571X_SOFT_MUTE_REG, + TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, + 1, 1), +}; + +static const struct reg_default tas5721_reg_defaults[] = { + {TAS571X_CLK_CTRL_REG, 0x6c}, + {TAS571X_DEV_ID_REG, 0x00}, + {TAS571X_ERR_STATUS_REG, 0x00}, + {TAS571X_SYS_CTRL_1_REG, 0xa0}, + {TAS571X_SDI_REG, 0x05}, + {TAS571X_SYS_CTRL_2_REG, 0x40}, + {TAS571X_SOFT_MUTE_REG, 0x00}, + {TAS571X_MVOL_REG, 0xff}, + {TAS571X_CH1_VOL_REG, 0x30}, + {TAS571X_CH2_VOL_REG, 0x30}, + {TAS571X_CH3_VOL_REG, 0x30}, + {TAS571X_VOL_CFG_REG, 0x91}, + {TAS571X_MODULATION_LIMIT_REG, 0x02}, + {TAS571X_IC_DELAY_CH1_REG, 0xac}, + {TAS571X_IC_DELAY_CH2_REG, 0x54}, + {TAS571X_IC_DELAY_CH3_REG, 0xac}, + {TAS571X_IC_DELAY_CH4_REG, 0x54}, + {TAS571X_PWM_CH_SDN_GROUP_REG, 0x30}, + {TAS571X_START_STOP_PERIOD_REG, 0x0f}, + {TAS571X_OSC_TRIM_REG, 0x82}, + {TAS571X_BKND_ERR_REG, 0x02}, + {TAS571X_INPUT_MUX_REG, 0x17772}, + {TAS571X_CH4_SRC_SELECT_REG, 0x4303}, + {TAS571X_PWM_MUX_REG, 0x1021345}, +}; + +static const struct regmap_config tas5721_regmap_config = { + .reg_bits = 8, + .val_bits = 32, + .max_register = 0xff, + .reg_read = tas571x_reg_read, + .reg_write = tas571x_reg_write, + .reg_defaults = tas5721_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(tas5721_reg_defaults), + .cache_type = REGCACHE_RBTREE, + .wr_table = &tas571x_write_regs, + .volatile_table = &tas571x_volatile_regs, +}; + + +static const struct tas571x_chip tas5721_chip = { + .supply_names = tas5721_supply_names, + .num_supply_names = ARRAY_SIZE(tas5721_supply_names), + .controls = tas5711_controls, + .num_controls = ARRAY_SIZE(tas5711_controls), + .regmap_config = &tas5721_regmap_config, + .vol_reg_size = 1, +}; + +static const struct snd_soc_dapm_widget tas571x_dapm_widgets[] = { + SND_SOC_DAPM_DAC("DACL", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("DACR", NULL, SND_SOC_NOPM, 0, 0), + + SND_SOC_DAPM_OUTPUT("OUT_A"), + SND_SOC_DAPM_OUTPUT("OUT_B"), + SND_SOC_DAPM_OUTPUT("OUT_C"), + SND_SOC_DAPM_OUTPUT("OUT_D"), +}; + +static const struct snd_soc_dapm_route tas571x_dapm_routes[] = { + { "DACL", NULL, "Playback" }, + { "DACR", NULL, "Playback" }, + + { "OUT_A", NULL, "DACL" }, + { "OUT_B", NULL, "DACL" }, + { "OUT_C", NULL, "DACR" }, + { "OUT_D", NULL, "DACR" }, +}; + +static const struct snd_soc_component_driver tas571x_component = { + .set_bias_level = tas571x_set_bias_level, + .dapm_widgets = tas571x_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tas571x_dapm_widgets), + .dapm_routes = tas571x_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(tas571x_dapm_routes), + .use_pmdown_time = 1, + .endianness = 1, + .non_legacy_dai_naming = 1, +}; + +static struct snd_soc_dai_driver tas571x_dai = { + .name = "tas571x-hifi", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_48000, + .formats = SNDRV_PCM_FMTBIT_S32_LE | + SNDRV_PCM_FMTBIT_S24_LE | + SNDRV_PCM_FMTBIT_S16_LE, + }, + .ops = &tas571x_dai_ops, +}; + +static const struct of_device_id tas571x_of_match[]; + +static int tas571x_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct tas571x_private *priv; + struct device *dev = &client->dev; + const struct of_device_id *of_id; + int i, ret; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + i2c_set_clientdata(client, priv); + + of_id = of_match_device(tas571x_of_match, dev); + if (of_id) + priv->chip = of_id->data; + else + priv->chip = (void *) id->driver_data; + + priv->mclk = devm_clk_get(dev, "mclk"); + if (IS_ERR(priv->mclk) && PTR_ERR(priv->mclk) != -ENOENT) { + dev_err(dev, "Failed to request mclk: %ld\n", + PTR_ERR(priv->mclk)); + return PTR_ERR(priv->mclk); + } + + if (WARN_ON(priv->chip->num_supply_names > TAS571X_MAX_SUPPLIES)) + return -EINVAL; + for (i = 0; i < priv->chip->num_supply_names; i++) + priv->supplies[i].supply = priv->chip->supply_names[i]; + + ret = devm_regulator_bulk_get(dev, priv->chip->num_supply_names, + priv->supplies); + if (ret) { + dev_err(dev, "Failed to get supplies: %d\n", ret); + return ret; + } + ret = regulator_bulk_enable(priv->chip->num_supply_names, + priv->supplies); + if (ret) { + dev_err(dev, "Failed to enable supplies: %d\n", ret); + return ret; + } + + priv->regmap = devm_regmap_init(dev, NULL, client, + priv->chip->regmap_config); + if (IS_ERR(priv->regmap)) { + ret = PTR_ERR(priv->regmap); + goto disable_regs; + } + + priv->pdn_gpio = devm_gpiod_get_optional(dev, "pdn", GPIOD_OUT_LOW); + if (IS_ERR(priv->pdn_gpio)) { + dev_err(dev, "error requesting pdn_gpio: %ld\n", + PTR_ERR(priv->pdn_gpio)); + return PTR_ERR(priv->pdn_gpio); + } + + priv->reset_gpio = devm_gpiod_get_optional(dev, "reset", + GPIOD_OUT_HIGH); + if (IS_ERR(priv->reset_gpio)) { + dev_err(dev, "error requesting reset_gpio: %ld\n", + PTR_ERR(priv->reset_gpio)); + return PTR_ERR(priv->reset_gpio); + } else if (priv->reset_gpio) { + /* pulse the active low reset line for ~100us */ + usleep_range(100, 200); + gpiod_set_value(priv->reset_gpio, 0); + usleep_range(13500, 20000); + } + + ret = regmap_write(priv->regmap, TAS571X_OSC_TRIM_REG, 0); + if (ret) + goto disable_regs; + + usleep_range(50000, 60000); + + memcpy(&priv->component_driver, &tas571x_component, sizeof(priv->component_driver)); + priv->component_driver.controls = priv->chip->controls; + priv->component_driver.num_controls = priv->chip->num_controls; + + if (priv->chip->vol_reg_size == 2) { + /* + * The master volume defaults to 0x3ff (mute), but we ignore + * (zero) the LSB because the hardware step size is 0.125 dB + * and TLV_DB_SCALE_ITEM has a resolution of 0.01 dB. + */ + ret = regmap_update_bits(priv->regmap, TAS571X_MVOL_REG, 1, 0); + if (ret) + goto disable_regs; + } + + ret = devm_snd_soc_register_component(&client->dev, + &priv->component_driver, + &tas571x_dai, 1); + if (ret) + goto disable_regs; + + return ret; + +disable_regs: + regulator_bulk_disable(priv->chip->num_supply_names, priv->supplies); + return ret; +} + +static int tas571x_i2c_remove(struct i2c_client *client) +{ + struct tas571x_private *priv = i2c_get_clientdata(client); + + regulator_bulk_disable(priv->chip->num_supply_names, priv->supplies); + + return 0; +} + +static const struct of_device_id tas571x_of_match[] = { + { .compatible = "ti,tas5707", .data = &tas5707_chip, }, + { .compatible = "ti,tas5711", .data = &tas5711_chip, }, + { .compatible = "ti,tas5717", .data = &tas5717_chip, }, + { .compatible = "ti,tas5719", .data = &tas5717_chip, }, + { .compatible = "ti,tas5721", .data = &tas5721_chip, }, + { } +}; +MODULE_DEVICE_TABLE(of, tas571x_of_match); + +static const struct i2c_device_id tas571x_i2c_id[] = { + { "tas5707", (kernel_ulong_t) &tas5707_chip }, + { "tas5711", (kernel_ulong_t) &tas5711_chip }, + { "tas5717", (kernel_ulong_t) &tas5717_chip }, + { "tas5719", (kernel_ulong_t) &tas5717_chip }, + { "tas5721", (kernel_ulong_t) &tas5721_chip }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tas571x_i2c_id); + +static struct i2c_driver tas571x_i2c_driver = { + .driver = { + .name = "tas571x", + .of_match_table = of_match_ptr(tas571x_of_match), + }, + .probe = tas571x_i2c_probe, + .remove = tas571x_i2c_remove, + .id_table = tas571x_i2c_id, +}; +module_i2c_driver(tas571x_i2c_driver); + +MODULE_DESCRIPTION("ASoC TAS571x driver"); +MODULE_AUTHOR("Kevin Cernekee <cernekee@chromium.org>"); +MODULE_LICENSE("GPL"); |