From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- sound/soc/codecs/tas2552.c | 780 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 780 insertions(+) create mode 100644 sound/soc/codecs/tas2552.c (limited to 'sound/soc/codecs/tas2552.c') diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c new file mode 100644 index 000000000..355ecafb7 --- /dev/null +++ b/sound/soc/codecs/tas2552.c @@ -0,0 +1,780 @@ +/* + * tas2552.c - ALSA SoC Texas Instruments TAS2552 Mono Audio Amplifier + * + * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com + * + * Author: Dan Murphy + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "tas2552.h" + +static const struct reg_default tas2552_reg_defs[] = { + {TAS2552_CFG_1, 0x22}, + {TAS2552_CFG_3, 0x80}, + {TAS2552_DOUT, 0x00}, + {TAS2552_OUTPUT_DATA, 0xc0}, + {TAS2552_PDM_CFG, 0x01}, + {TAS2552_PGA_GAIN, 0x00}, + {TAS2552_BOOST_APT_CTRL, 0x0f}, + {TAS2552_RESERVED_0D, 0xbe}, + {TAS2552_LIMIT_RATE_HYS, 0x08}, + {TAS2552_CFG_2, 0xef}, + {TAS2552_SER_CTRL_1, 0x00}, + {TAS2552_SER_CTRL_2, 0x00}, + {TAS2552_PLL_CTRL_1, 0x10}, + {TAS2552_PLL_CTRL_2, 0x00}, + {TAS2552_PLL_CTRL_3, 0x00}, + {TAS2552_BTIP, 0x8f}, + {TAS2552_BTS_CTRL, 0x80}, + {TAS2552_LIMIT_RELEASE, 0x04}, + {TAS2552_LIMIT_INT_COUNT, 0x00}, + {TAS2552_EDGE_RATE_CTRL, 0x40}, + {TAS2552_VBAT_DATA, 0x00}, +}; + +#define TAS2552_NUM_SUPPLIES 3 +static const char *tas2552_supply_names[TAS2552_NUM_SUPPLIES] = { + "vbat", /* vbat voltage */ + "iovdd", /* I/O Voltage */ + "avdd", /* Analog DAC Voltage */ +}; + +struct tas2552_data { + struct snd_soc_component *component; + struct regmap *regmap; + struct i2c_client *tas2552_client; + struct regulator_bulk_data supplies[TAS2552_NUM_SUPPLIES]; + struct gpio_desc *enable_gpio; + unsigned char regs[TAS2552_VBAT_DATA]; + unsigned int pll_clkin; + int pll_clk_id; + unsigned int pdm_clk; + int pdm_clk_id; + + unsigned int dai_fmt; + unsigned int tdm_delay; +}; + +static int tas2552_post_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); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + snd_soc_component_write(component, TAS2552_RESERVED_0D, 0xc0); + snd_soc_component_update_bits(component, TAS2552_LIMIT_RATE_HYS, (1 << 5), + (1 << 5)); + snd_soc_component_update_bits(component, TAS2552_CFG_2, 1, 0); + snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_SWS, 0); + break; + case SND_SOC_DAPM_POST_PMD: + snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_SWS, + TAS2552_SWS); + snd_soc_component_update_bits(component, TAS2552_CFG_2, 1, 1); + snd_soc_component_update_bits(component, TAS2552_LIMIT_RATE_HYS, (1 << 5), 0); + snd_soc_component_write(component, TAS2552_RESERVED_0D, 0xbe); + break; + } + return 0; +} + +/* Input mux controls */ +static const char * const tas2552_input_texts[] = { + "Digital", "Analog" }; +static SOC_ENUM_SINGLE_DECL(tas2552_input_mux_enum, TAS2552_CFG_3, 7, + tas2552_input_texts); + +static const struct snd_kcontrol_new tas2552_input_mux_control = + SOC_DAPM_ENUM("Route", tas2552_input_mux_enum); + +static const struct snd_soc_dapm_widget tas2552_dapm_widgets[] = +{ + SND_SOC_DAPM_INPUT("IN"), + + /* MUX Controls */ + SND_SOC_DAPM_MUX("Input selection", SND_SOC_NOPM, 0, 0, + &tas2552_input_mux_control), + + SND_SOC_DAPM_AIF_IN("DAC IN", "DAC Playback", 0, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_DAC("DAC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_OUT_DRV("ClassD", TAS2552_CFG_2, 7, 0, NULL, 0), + SND_SOC_DAPM_SUPPLY("PLL", TAS2552_CFG_2, 3, 0, NULL, 0), + SND_SOC_DAPM_POST("Post Event", tas2552_post_event), + + SND_SOC_DAPM_OUTPUT("OUT") +}; + +static const struct snd_soc_dapm_route tas2552_audio_map[] = { + {"DAC", NULL, "DAC IN"}, + {"Input selection", "Digital", "DAC"}, + {"Input selection", "Analog", "IN"}, + {"ClassD", NULL, "Input selection"}, + {"OUT", NULL, "ClassD"}, + {"ClassD", NULL, "PLL"}, +}; + +#ifdef CONFIG_PM +static void tas2552_sw_shutdown(struct tas2552_data *tas2552, int sw_shutdown) +{ + u8 cfg1_reg = 0; + + if (!tas2552->component) + return; + + if (sw_shutdown) + cfg1_reg = TAS2552_SWS; + + snd_soc_component_update_bits(tas2552->component, TAS2552_CFG_1, TAS2552_SWS, + cfg1_reg); +} +#endif + +static int tas2552_setup_pll(struct snd_soc_component *component, + struct snd_pcm_hw_params *params) +{ + struct tas2552_data *tas2552 = dev_get_drvdata(component->dev); + bool bypass_pll = false; + unsigned int pll_clk = params_rate(params) * 512; + unsigned int pll_clkin = tas2552->pll_clkin; + u8 pll_enable; + + if (!pll_clkin) { + if (tas2552->pll_clk_id != TAS2552_PLL_CLKIN_BCLK) + return -EINVAL; + + pll_clkin = snd_soc_params_to_bclk(params); + pll_clkin += tas2552->tdm_delay; + } + + pll_enable = snd_soc_component_read32(component, TAS2552_CFG_2) & TAS2552_PLL_ENABLE; + snd_soc_component_update_bits(component, TAS2552_CFG_2, TAS2552_PLL_ENABLE, 0); + + if (pll_clkin == pll_clk) + bypass_pll = true; + + if (bypass_pll) { + /* By pass the PLL configuration */ + snd_soc_component_update_bits(component, TAS2552_PLL_CTRL_2, + TAS2552_PLL_BYPASS, TAS2552_PLL_BYPASS); + } else { + /* Fill in the PLL control registers for J & D + * pll_clk = (.5 * pll_clkin * J.D) / 2^p + * Need to fill in J and D here based on incoming freq + */ + unsigned int d, q, t; + u8 j; + u8 pll_sel = (tas2552->pll_clk_id << 3) & TAS2552_PLL_SRC_MASK; + u8 p = snd_soc_component_read32(component, TAS2552_PLL_CTRL_1); + + p = (p >> 7); + +recalc: + t = (pll_clk * 2) << p; + j = t / pll_clkin; + d = t % pll_clkin; + t = pll_clkin / 10000; + q = d / (t + 1); + d = q + ((9999 - pll_clkin % 10000) * (d / t - q)) / 10000; + + if (d && (pll_clkin < 512000 || pll_clkin > 9200000)) { + if (tas2552->pll_clk_id == TAS2552_PLL_CLKIN_BCLK) { + pll_clkin = 1800000; + pll_sel = (TAS2552_PLL_CLKIN_1_8_FIXED << 3) & + TAS2552_PLL_SRC_MASK; + } else { + pll_clkin = snd_soc_params_to_bclk(params); + pll_clkin += tas2552->tdm_delay; + pll_sel = (TAS2552_PLL_CLKIN_BCLK << 3) & + TAS2552_PLL_SRC_MASK; + } + goto recalc; + } + + snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_PLL_SRC_MASK, + pll_sel); + + snd_soc_component_update_bits(component, TAS2552_PLL_CTRL_1, + TAS2552_PLL_J_MASK, j); + /* Will clear the PLL_BYPASS bit */ + snd_soc_component_write(component, TAS2552_PLL_CTRL_2, + TAS2552_PLL_D_UPPER(d)); + snd_soc_component_write(component, TAS2552_PLL_CTRL_3, + TAS2552_PLL_D_LOWER(d)); + } + + /* Restore PLL status */ + snd_soc_component_update_bits(component, TAS2552_CFG_2, TAS2552_PLL_ENABLE, + pll_enable); + + return 0; +} + +static int tas2552_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 tas2552_data *tas2552 = dev_get_drvdata(component->dev); + int cpf; + u8 ser_ctrl1_reg, wclk_rate; + + switch (params_width(params)) { + case 16: + ser_ctrl1_reg = TAS2552_WORDLENGTH_16BIT; + cpf = 32 + tas2552->tdm_delay; + break; + case 20: + ser_ctrl1_reg = TAS2552_WORDLENGTH_20BIT; + cpf = 64 + tas2552->tdm_delay; + break; + case 24: + ser_ctrl1_reg = TAS2552_WORDLENGTH_24BIT; + cpf = 64 + tas2552->tdm_delay; + break; + case 32: + ser_ctrl1_reg = TAS2552_WORDLENGTH_32BIT; + cpf = 64 + tas2552->tdm_delay; + break; + default: + dev_err(component->dev, "Not supported sample size: %d\n", + params_width(params)); + return -EINVAL; + } + + if (cpf <= 32) + ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_32; + else if (cpf <= 64) + ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_64; + else if (cpf <= 128) + ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_128; + else + ser_ctrl1_reg |= TAS2552_CLKSPERFRAME_256; + + snd_soc_component_update_bits(component, TAS2552_SER_CTRL_1, + TAS2552_WORDLENGTH_MASK | TAS2552_CLKSPERFRAME_MASK, + ser_ctrl1_reg); + + switch (params_rate(params)) { + case 8000: + wclk_rate = TAS2552_WCLK_FREQ_8KHZ; + break; + case 11025: + case 12000: + wclk_rate = TAS2552_WCLK_FREQ_11_12KHZ; + break; + case 16000: + wclk_rate = TAS2552_WCLK_FREQ_16KHZ; + break; + case 22050: + case 24000: + wclk_rate = TAS2552_WCLK_FREQ_22_24KHZ; + break; + case 32000: + wclk_rate = TAS2552_WCLK_FREQ_32KHZ; + break; + case 44100: + case 48000: + wclk_rate = TAS2552_WCLK_FREQ_44_48KHZ; + break; + case 88200: + case 96000: + wclk_rate = TAS2552_WCLK_FREQ_88_96KHZ; + break; + case 176400: + case 192000: + wclk_rate = TAS2552_WCLK_FREQ_176_192KHZ; + break; + default: + dev_err(component->dev, "Not supported sample rate: %d\n", + params_rate(params)); + return -EINVAL; + } + + snd_soc_component_update_bits(component, TAS2552_CFG_3, TAS2552_WCLK_FREQ_MASK, + wclk_rate); + + return tas2552_setup_pll(component, params); +} + +#define TAS2552_DAI_FMT_MASK (TAS2552_BCLKDIR | \ + TAS2552_WCLKDIR | \ + TAS2552_DATAFORMAT_MASK) +static int tas2552_prepare(struct snd_pcm_substream *substream, + struct snd_soc_dai *dai) +{ + struct snd_soc_component *component = dai->component; + struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component); + int delay = 0; + + /* TDM slot selection only valid in DSP_A/_B mode */ + if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_A) + delay += (tas2552->tdm_delay + 1); + else if (tas2552->dai_fmt == SND_SOC_DAIFMT_DSP_B) + delay += tas2552->tdm_delay; + + /* Configure data delay */ + snd_soc_component_write(component, TAS2552_SER_CTRL_2, delay); + + return 0; +} + +static int tas2552_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{ + struct snd_soc_component *component = dai->component; + struct tas2552_data *tas2552 = dev_get_drvdata(component->dev); + u8 serial_format; + + switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBS_CFS: + serial_format = 0x00; + break; + case SND_SOC_DAIFMT_CBS_CFM: + serial_format = TAS2552_WCLKDIR; + break; + case SND_SOC_DAIFMT_CBM_CFS: + serial_format = TAS2552_BCLKDIR; + break; + case SND_SOC_DAIFMT_CBM_CFM: + serial_format = (TAS2552_BCLKDIR | TAS2552_WCLKDIR); + break; + default: + dev_vdbg(component->dev, "DAI Format master is not found\n"); + return -EINVAL; + } + + switch (fmt & (SND_SOC_DAIFMT_FORMAT_MASK | + SND_SOC_DAIFMT_INV_MASK)) { + case (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF): + break; + case (SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF): + case (SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF): + serial_format |= TAS2552_DATAFORMAT_DSP; + break; + case (SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_NB_NF): + serial_format |= TAS2552_DATAFORMAT_RIGHT_J; + break; + case (SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_NB_NF): + serial_format |= TAS2552_DATAFORMAT_LEFT_J; + break; + default: + dev_vdbg(component->dev, "DAI Format is not found\n"); + return -EINVAL; + } + tas2552->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK; + + snd_soc_component_update_bits(component, TAS2552_SER_CTRL_1, TAS2552_DAI_FMT_MASK, + serial_format); + return 0; +} + +static int tas2552_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id, + unsigned int freq, int dir) +{ + struct snd_soc_component *component = dai->component; + struct tas2552_data *tas2552 = dev_get_drvdata(component->dev); + u8 reg, mask, val; + + switch (clk_id) { + case TAS2552_PLL_CLKIN_MCLK: + case TAS2552_PLL_CLKIN_IVCLKIN: + if (freq < 512000 || freq > 24576000) { + /* out of range PLL_CLKIN, fall back to use BCLK */ + dev_warn(component->dev, "Out of range PLL_CLKIN: %u\n", + freq); + clk_id = TAS2552_PLL_CLKIN_BCLK; + freq = 0; + } + /* fall through */ + case TAS2552_PLL_CLKIN_BCLK: + case TAS2552_PLL_CLKIN_1_8_FIXED: + mask = TAS2552_PLL_SRC_MASK; + val = (clk_id << 3) & mask; /* bit 4:5 in the register */ + reg = TAS2552_CFG_1; + tas2552->pll_clk_id = clk_id; + tas2552->pll_clkin = freq; + break; + case TAS2552_PDM_CLK_PLL: + case TAS2552_PDM_CLK_IVCLKIN: + case TAS2552_PDM_CLK_BCLK: + case TAS2552_PDM_CLK_MCLK: + mask = TAS2552_PDM_CLK_SEL_MASK; + val = (clk_id >> 1) & mask; /* bit 0:1 in the register */ + reg = TAS2552_PDM_CFG; + tas2552->pdm_clk_id = clk_id; + tas2552->pdm_clk = freq; + break; + default: + dev_err(component->dev, "Invalid clk id: %d\n", clk_id); + return -EINVAL; + } + + snd_soc_component_update_bits(component, reg, mask, val); + + return 0; +} + +static int tas2552_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 tas2552_data *tas2552 = snd_soc_component_get_drvdata(component); + unsigned int lsb; + + if (unlikely(!tx_mask)) { + dev_err(component->dev, "tx masks need to be non 0\n"); + return -EINVAL; + } + + /* TDM based on DSP mode requires slots to be adjacent */ + lsb = __ffs(tx_mask); + if ((lsb + 1) != __fls(tx_mask)) { + dev_err(component->dev, "Invalid mask, slots must be adjacent\n"); + return -EINVAL; + } + + tas2552->tdm_delay = lsb * slot_width; + + /* DOUT in high-impedance on inactive bit clocks */ + snd_soc_component_update_bits(component, TAS2552_DOUT, + TAS2552_SDOUT_TRISTATE, TAS2552_SDOUT_TRISTATE); + + return 0; +} + +static int tas2552_mute(struct snd_soc_dai *dai, int mute) +{ + u8 cfg1_reg = 0; + struct snd_soc_component *component = dai->component; + + if (mute) + cfg1_reg |= TAS2552_MUTE; + + snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_MUTE, cfg1_reg); + + return 0; +} + +#ifdef CONFIG_PM +static int tas2552_runtime_suspend(struct device *dev) +{ + struct tas2552_data *tas2552 = dev_get_drvdata(dev); + + tas2552_sw_shutdown(tas2552, 1); + + regcache_cache_only(tas2552->regmap, true); + regcache_mark_dirty(tas2552->regmap); + + gpiod_set_value(tas2552->enable_gpio, 0); + + return 0; +} + +static int tas2552_runtime_resume(struct device *dev) +{ + struct tas2552_data *tas2552 = dev_get_drvdata(dev); + + gpiod_set_value(tas2552->enable_gpio, 1); + + tas2552_sw_shutdown(tas2552, 0); + + regcache_cache_only(tas2552->regmap, false); + regcache_sync(tas2552->regmap); + + return 0; +} +#endif + +static const struct dev_pm_ops tas2552_pm = { + SET_RUNTIME_PM_OPS(tas2552_runtime_suspend, tas2552_runtime_resume, + NULL) +}; + +static const struct snd_soc_dai_ops tas2552_speaker_dai_ops = { + .hw_params = tas2552_hw_params, + .prepare = tas2552_prepare, + .set_sysclk = tas2552_set_dai_sysclk, + .set_fmt = tas2552_set_dai_fmt, + .set_tdm_slot = tas2552_set_dai_tdm_slot, + .digital_mute = tas2552_mute, +}; + +/* Formats supported by TAS2552 driver. */ +#define TAS2552_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE) + +/* TAS2552 dai structure. */ +static struct snd_soc_dai_driver tas2552_dai[] = { + { + .name = "tas2552-amplifier", + .playback = { + .stream_name = "Playback", + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_8000_192000, + .formats = TAS2552_FORMATS, + }, + .ops = &tas2552_speaker_dai_ops, + }, +}; + +/* + * DAC digital volumes. From -7 to 24 dB in 1 dB steps + */ +static DECLARE_TLV_DB_SCALE(dac_tlv, -700, 100, 0); + +static const char * const tas2552_din_source_select[] = { + "Muted", + "Left", + "Right", + "Left + Right average", +}; +static SOC_ENUM_SINGLE_DECL(tas2552_din_source_enum, + TAS2552_CFG_3, 3, + tas2552_din_source_select); + +static const struct snd_kcontrol_new tas2552_snd_controls[] = { + SOC_SINGLE_TLV("Speaker Driver Playback Volume", + TAS2552_PGA_GAIN, 0, 0x1f, 0, dac_tlv), + SOC_ENUM("DIN source", tas2552_din_source_enum), +}; + +static int tas2552_component_probe(struct snd_soc_component *component) +{ + struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component); + int ret; + + tas2552->component = component; + + ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies), + tas2552->supplies); + + if (ret != 0) { + dev_err(component->dev, "Failed to enable supplies: %d\n", + ret); + return ret; + } + + gpiod_set_value(tas2552->enable_gpio, 1); + + ret = pm_runtime_get_sync(component->dev); + if (ret < 0) { + dev_err(component->dev, "Enabling device failed: %d\n", + ret); + goto probe_fail; + } + + snd_soc_component_update_bits(component, TAS2552_CFG_1, TAS2552_MUTE, TAS2552_MUTE); + snd_soc_component_write(component, TAS2552_CFG_3, TAS2552_I2S_OUT_SEL | + TAS2552_DIN_SRC_SEL_AVG_L_R); + snd_soc_component_write(component, TAS2552_OUTPUT_DATA, + TAS2552_PDM_DATA_SEL_V_I | + TAS2552_R_DATA_OUT(TAS2552_DATA_OUT_V_DATA)); + snd_soc_component_write(component, TAS2552_BOOST_APT_CTRL, TAS2552_APT_DELAY_200 | + TAS2552_APT_THRESH_20_17); + + snd_soc_component_write(component, TAS2552_CFG_2, TAS2552_BOOST_EN | TAS2552_APT_EN | + TAS2552_LIM_EN); + + return 0; + +probe_fail: + gpiod_set_value(tas2552->enable_gpio, 0); + + regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies), + tas2552->supplies); + return ret; +} + +static void tas2552_component_remove(struct snd_soc_component *component) +{ + struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component); + + pm_runtime_put(component->dev); + + gpiod_set_value(tas2552->enable_gpio, 0); +}; + +#ifdef CONFIG_PM +static int tas2552_suspend(struct snd_soc_component *component) +{ + struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component); + int ret; + + ret = regulator_bulk_disable(ARRAY_SIZE(tas2552->supplies), + tas2552->supplies); + + if (ret != 0) + dev_err(component->dev, "Failed to disable supplies: %d\n", + ret); + return ret; +} + +static int tas2552_resume(struct snd_soc_component *component) +{ + struct tas2552_data *tas2552 = snd_soc_component_get_drvdata(component); + int ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(tas2552->supplies), + tas2552->supplies); + + if (ret != 0) { + dev_err(component->dev, "Failed to enable supplies: %d\n", + ret); + } + + return ret; +} +#else +#define tas2552_suspend NULL +#define tas2552_resume NULL +#endif + +static const struct snd_soc_component_driver soc_component_dev_tas2552 = { + .probe = tas2552_component_probe, + .remove = tas2552_component_remove, + .suspend = tas2552_suspend, + .resume = tas2552_resume, + .controls = tas2552_snd_controls, + .num_controls = ARRAY_SIZE(tas2552_snd_controls), + .dapm_widgets = tas2552_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(tas2552_dapm_widgets), + .dapm_routes = tas2552_audio_map, + .num_dapm_routes = ARRAY_SIZE(tas2552_audio_map), + .idle_bias_on = 1, + .endianness = 1, + .non_legacy_dai_naming = 1, +}; + +static const struct regmap_config tas2552_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = TAS2552_MAX_REG, + .reg_defaults = tas2552_reg_defs, + .num_reg_defaults = ARRAY_SIZE(tas2552_reg_defs), + .cache_type = REGCACHE_RBTREE, +}; + +static int tas2552_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev; + struct tas2552_data *data; + int ret; + int i; + + dev = &client->dev; + data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (data == NULL) + return -ENOMEM; + + data->enable_gpio = devm_gpiod_get_optional(dev, "enable", + GPIOD_OUT_LOW); + if (IS_ERR(data->enable_gpio)) + return PTR_ERR(data->enable_gpio); + + data->tas2552_client = client; + data->regmap = devm_regmap_init_i2c(client, &tas2552_regmap_config); + if (IS_ERR(data->regmap)) { + ret = PTR_ERR(data->regmap); + dev_err(&client->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + for (i = 0; i < ARRAY_SIZE(data->supplies); i++) + data->supplies[i].supply = tas2552_supply_names[i]; + + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies), + data->supplies); + if (ret != 0) { + dev_err(dev, "Failed to request supplies: %d\n", ret); + return ret; + } + + pm_runtime_set_active(&client->dev); + pm_runtime_set_autosuspend_delay(&client->dev, 1000); + pm_runtime_use_autosuspend(&client->dev); + pm_runtime_enable(&client->dev); + pm_runtime_mark_last_busy(&client->dev); + pm_runtime_put_sync_autosuspend(&client->dev); + + dev_set_drvdata(&client->dev, data); + + ret = devm_snd_soc_register_component(&client->dev, + &soc_component_dev_tas2552, + tas2552_dai, ARRAY_SIZE(tas2552_dai)); + if (ret < 0) + dev_err(&client->dev, "Failed to register component: %d\n", ret); + + return ret; +} + +static int tas2552_i2c_remove(struct i2c_client *client) +{ + pm_runtime_disable(&client->dev); + return 0; +} + +static const struct i2c_device_id tas2552_id[] = { + { "tas2552", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tas2552_id); + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id tas2552_of_match[] = { + { .compatible = "ti,tas2552", }, + {}, +}; +MODULE_DEVICE_TABLE(of, tas2552_of_match); +#endif + +static struct i2c_driver tas2552_i2c_driver = { + .driver = { + .name = "tas2552", + .of_match_table = of_match_ptr(tas2552_of_match), + .pm = &tas2552_pm, + }, + .probe = tas2552_probe, + .remove = tas2552_i2c_remove, + .id_table = tas2552_id, +}; + +module_i2c_driver(tas2552_i2c_driver); + +MODULE_AUTHOR("Dan Muprhy "); +MODULE_DESCRIPTION("TAS2552 Audio amplifier driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3