From: Jeff Chang jeff_chang@richtek.com

The MT6660 is a boosted BTL class-D amplifier with V/I sensing. A built-in DC-DC step-up converter is used to provide efficient power for class-D amplifier with multi-level class-G operation. The digital audio interface supports I2S, left-justified, right-justified, TDM and DSP A/B format for audio in with a data out used for chip information like voltage sense and current sense, which are able to be monitored via DATAO through proper

Signed-off-by: Jeff Chang jeff_chang@richtek.com --- Documentation/devicetree/bindings/sound/mt6660.txt | 53 ++ sound/soc/codecs/Kconfig | 11 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/mt6660.c | 642 +++++++++++++++++++++ sound/soc/codecs/mt6660.h | 77 +++ 5 files changed, 785 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/mt6660.txt create mode 100644 sound/soc/codecs/mt6660.c create mode 100644 sound/soc/codecs/mt6660.h

changelogs between v5 & v4 - remove redundant initialization. - use packed structures. - remove useless switch case. - take care of memory allocation failures.

changelogs between v4 & v3 - remove unnecessary kcontrols. - modify copy right header. - use dev_dbg instead of dev_info. - add necessary debug message. - add DT binding documentation. - add space before } at every table.

changelogs between v3 & v2

- modify MT6660 Kconfig, remove unnecessary selection. - remove my own debug io interface. use standard regmap for debugging. - remove regmap volatile ops, we do not use cache. - remove component io read/write function, use snd_soc_component_init_regmap. - remove init setting write code. Using parsing dts to set them. - remove unnecessary pr_info log message. - remove mt6660_component_put_volsw. Using snd_soc_get_volsw.

diff --git a/Documentation/devicetree/bindings/sound/mt6660.txt b/Documentation/devicetree/bindings/sound/mt6660.txt new file mode 100644 index 0000000..2a1736b --- /dev/null +++ b/Documentation/devicetree/bindings/sound/mt6660.txt @@ -0,0 +1,53 @@ +MT6660 MediaTek Speaker Amplifier + +This device supports I2C mode only. + +Required properties: + + - compatible : "mediatek,mt6660" + + - reg : The I2C slave address + +Optional properties: + + - rt,init_setting_num : The initial register setting element number. + + - rt,init_setting_addr : the addreses array for INIT Setting table. + + - rt,init_setting_mask : the mask array for INIT Setting table. + + - rt,init_setting_val : the value array for INIT Setting table. + +Example: + + mt6660@34 { + status = "ok"; + compatible = "mediatek,mt6660"; + reg = <0x34>; + rt,init_setting_num = <26>; + rt,init_setting_addr = + <0x20 0x30 0x50 0xB1 + 0xD3 0xE0 0x98 0xB9 + 0xB7 0xB6 0x6B 0x07 + 0xBB 0x69 0xBD 0x70 + 0x7C 0x46 0x1A 0x1B + 0x51 0xA2 0x33 0x4C + 0x15 0x68>; + rt,init_setting_mask = + <0x80 0x01 0x1c 0x0c + 0x03 0x01 0x44 0xff + 0x7777 0x07 0xe0 0xff + 0xff 0xff 0xffff 0xff + 0xff 0xff 0xffffffff 0xffffffff + 0xff 0xff 0xffff 0xffff + 0x1800 0x1f>; + rt,init_setting_val = + <0x00 0x00 0x04 0x00 + 0x03 0x00 0x04 0x82 + 0x7273 0x03 0x20 0x70 + 0x20 0x40 0x17f8 0x15 + 0x00 0x1d 0x7fdb7ffe 0x7fdb7ffe + 0x58 0xce 0x7fff 0x0116 + 0x0800 0x07>; + }; + diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 229cc89..f135fbb 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -122,6 +122,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_ML26124 if I2C select SND_SOC_MT6351 if MTK_PMIC_WRAP select SND_SOC_MT6358 if MTK_PMIC_WRAP + select SND_SOC_MT6660 if I2C select SND_SOC_NAU8540 if I2C select SND_SOC_NAU8810 if I2C select SND_SOC_NAU8822 if I2C @@ -1465,6 +1466,16 @@ config SND_SOC_MT6358 Enable support for the platform which uses MT6358 as external codec device.

+config SND_SOC_MT6660 + tristate "Mediatek MT6660 Speaker Amplifier" + depends on I2C + help + MediaTek MT6660 is a smart power amplifier which contain + speaker protection, multi-band DRC, equalizer functions. + Select N if you don't have MT6660 on board. + Select M to build this as module. + + config SND_SOC_NAU8540 tristate "Nuvoton Technology Corporation NAU85L40 CODEC" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index c498373..2b6814c 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -119,6 +119,7 @@ snd-soc-msm8916-analog-objs := msm8916-wcd-analog.o snd-soc-msm8916-digital-objs := msm8916-wcd-digital.o snd-soc-mt6351-objs := mt6351.o snd-soc-mt6358-objs := mt6358.o +snd-soc-mt6660-objs := mt6660.o snd-soc-nau8540-objs := nau8540.o snd-soc-nau8810-objs := nau8810.o snd-soc-nau8822-objs := nau8822.o @@ -403,6 +404,7 @@ obj-$(CONFIG_SND_SOC_MSM8916_WCD_ANALOG) +=snd-soc-msm8916-analog.o obj-$(CONFIG_SND_SOC_MSM8916_WCD_DIGITAL) +=snd-soc-msm8916-digital.o obj-$(CONFIG_SND_SOC_MT6351) += snd-soc-mt6351.o obj-$(CONFIG_SND_SOC_MT6358) += snd-soc-mt6358.o +obj-$(CONFIG_SND_SOC_MT6660) += snd-soc-mt6660.o obj-$(CONFIG_SND_SOC_NAU8540) += snd-soc-nau8540.o obj-$(CONFIG_SND_SOC_NAU8810) += snd-soc-nau8810.o obj-$(CONFIG_SND_SOC_NAU8822) += snd-soc-nau8822.o diff --git a/sound/soc/codecs/mt6660.c b/sound/soc/codecs/mt6660.c new file mode 100644 index 0000000..5f79044 --- /dev/null +++ b/sound/soc/codecs/mt6660.c @@ -0,0 +1,642 @@ +// SPDX-License-Identifier: GPL-2.0 // + +// Copyright (c) 2019 MediaTek Inc. + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/version.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/pm_runtime.h> +#include <linux/delay.h> +#include <sound/soc.h> +#include <sound/tlv.h> +#include <sound/pcm_params.h> +#include <linux/debugfs.h> + +#include "mt6660.h" + +#pragma pack(push, 1) +struct codec_reg_val { + u32 addr; + u32 mask; + u32 data; +}; + +struct reg_size_table { + u32 addr; + u8 size; +}; +#pragma pack(pop) + +static const struct reg_size_table mt6660_reg_size_table[] = { + { MT6660_REG_HPF1_COEF, 4 }, + { MT6660_REG_HPF2_COEF, 4 }, + { MT6660_REG_TDM_CFG3, 2 }, + { MT6660_REG_RESV17, 2 }, + { MT6660_REG_RESV23, 2 }, + { MT6660_REG_SIGMAX, 2 }, + { MT6660_REG_DEVID, 2 }, + { MT6660_REG_HCLIP_CTRL, 2 }, + { MT6660_REG_DA_GAIN, 2 }, +}; + +static int mt6660_get_reg_size(uint32_t addr) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mt6660_reg_size_table); i++) { + if (mt6660_reg_size_table[i].addr == addr) + return mt6660_reg_size_table[i].size; + } + return 1; +} + +static int mt6660_reg_write(void *context, unsigned int reg, unsigned int val) +{ + struct mt6660_chip *chip = context; + int size = mt6660_get_reg_size(reg); + u8 reg_data[4]; + int i, ret; + + for (i = 0; i < size; i++) + reg_data[size - i - 1] = (val >> (8 * i)) & 0xff; + + ret = i2c_smbus_write_i2c_block_data(chip->i2c, reg, size, reg_data); + return ret; +} + +static int mt6660_reg_read(void *context, unsigned int reg, unsigned int *val) +{ + struct mt6660_chip *chip = context; + int size = mt6660_get_reg_size(reg); + int i, ret; + u8 data[4]; + u32 reg_data = 0; + + ret = i2c_smbus_read_i2c_block_data(chip->i2c, reg, size, data); + if (ret < 0) + return ret; + for (i = 0; i < size; i++) { + reg_data <<= 8; + reg_data |= data[i]; + } + *val = reg_data; + return 0; +} + +static struct regmap_config mt6660_regmap_config = { + .reg_bits = 8, + .val_bits = 32, + .reg_write = mt6660_reg_write, + .reg_read = mt6660_reg_read, +}; + +static int mt6660_codec_dac_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + + if (event == SND_SOC_DAPM_POST_PMU) + usleep_range(1000, 1100); + return 0; +} + +static int mt6660_codec_classd_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); + int ret; + + switch (event) { + case SND_SOC_DAPM_PRE_PMU: + dev_dbg(component->dev, + "%s: before classd turn on\n", __func__); + /* config to adaptive mode */ + ret = snd_soc_component_update_bits(component, + MT6660_REG_BST_CTRL, 0x03, 0x03); + if (ret < 0) { + dev_err(component->dev, "config mode adaptive fail\n"); + return ret; + } + break; + case SND_SOC_DAPM_POST_PMU: + /* voltage sensing enable */ + ret = snd_soc_component_update_bits(component, + MT6660_REG_RESV7, 0x04, 0x04); + if (ret < 0) { + dev_err(component->dev, + "enable voltage sensing fail\n"); + return ret; + } + dev_dbg(component->dev, "Amp on\n"); + break; + case SND_SOC_DAPM_PRE_PMD: + dev_dbg(component->dev, "Amp off\n"); + /* voltage sensing disable */ + ret = snd_soc_component_update_bits(component, + MT6660_REG_RESV7, 0x04, 0x00); + if (ret < 0) { + dev_err(component->dev, + "disable voltage sensing fail\n"); + return ret; + } + /* pop-noise improvement 1 */ + ret = snd_soc_component_update_bits(component, + MT6660_REG_RESV10, 0x10, 0x10); + if (ret < 0) { + dev_err(component->dev, + "pop-noise improvement 1 fail\n"); + return ret; + } + break; + case SND_SOC_DAPM_POST_PMD: + dev_dbg(component->dev, + "%s: after classd turn off\n", __func__); + /* pop-noise improvement 2 */ + ret = snd_soc_component_update_bits(component, + MT6660_REG_RESV10, 0x10, 0x00); + if (ret < 0) { + dev_err(component->dev, + "pop-noise improvement 2 fail\n"); + return ret; + } + /* config to off mode */ + ret = snd_soc_component_update_bits(component, + MT6660_REG_BST_CTRL, 0x03, 0x00); + if (ret < 0) { + dev_err(component->dev, "config mode off fail\n"); + return ret; + } + break; + } + return 0; +} + +static const struct snd_soc_dapm_widget mt6660_component_dapm_widgets[] = { + SND_SOC_DAPM_DAC_E("DAC", NULL, MT6660_REG_PLL_CFG1, + 0, 1, mt6660_codec_dac_event, SND_SOC_DAPM_POST_PMU), + SND_SOC_DAPM_ADC("VI ADC", NULL, SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_PGA("PGA", SND_SOC_NOPM, 0, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV_E("ClassD", MT6660_REG_SYSTEM_CTRL, 2, 0, + NULL, 0, mt6660_codec_classd_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | + SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), + SND_SOC_DAPM_OUTPUT("OUTP"), + SND_SOC_DAPM_OUTPUT("OUTN"), +}; + +static const struct snd_soc_dapm_route mt6660_component_dapm_routes[] = { + { "DAC", NULL, "aif_playback" }, + { "PGA", NULL, "DAC" }, + { "ClassD", NULL, "PGA" }, + { "OUTP", NULL, "ClassD" }, + { "OUTN", NULL, "ClassD" }, + { "VI ADC", NULL, "ClassD" }, + { "aif_capture", NULL, "VI ADC" }, +}; + +static int mt6660_component_get_volsw(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_component *component = + snd_soc_kcontrol_component(kcontrol); + struct mt6660_chip *chip = (struct mt6660_chip *) + snd_soc_component_get_drvdata(component); + int ret = -EINVAL; + + if (!strcmp(kcontrol->id.name, "Chip Rev")) { + ucontrol->value.integer.value[0] = chip->chip_rev & 0x0f; + ret = 0; + } + return ret; +} + +static const DECLARE_TLV_DB_SCALE(vol_ctl_tlv, -1155, 5, 0); + +static const struct snd_kcontrol_new mt6660_component_snd_controls[] = { + SOC_SINGLE_TLV("Digital Volume", MT6660_REG_VOL_CTRL, 0, 255, + 1, vol_ctl_tlv), + SOC_SINGLE("Hard Clip Switch", MT6660_REG_HCLIP_CTRL, 8, 1, 0), + SOC_SINGLE("Clip Switch", MT6660_REG_SPS_CTRL, 0, 1, 0), + SOC_SINGLE("Boost Mode", MT6660_REG_BST_CTRL, 0, 3, 0), + SOC_SINGLE("DRE Switch", MT6660_REG_DRE_CTRL, 0, 1, 0), + SOC_SINGLE("DC Protect Switch", MT6660_REG_DC_PROTECT_CTRL, 3, 1, 0), + SOC_SINGLE("Data Output Left Channel Selection", + MT6660_REG_DATAO_SEL, 3, 7, 0), + SOC_SINGLE("Data Output Right Channel Selection", + MT6660_REG_DATAO_SEL, 0, 7, 0), + SOC_SINGLE_EXT("T0 SEL", MT6660_REG_CALI_T0, 0, 7, 0, + snd_soc_get_volsw, NULL), + SOC_SINGLE_EXT("Chip Rev", MT6660_REG_DEVID, 8, 15, 0, + mt6660_component_get_volsw, NULL), +}; + +static int _mt6660_chip_power_on(struct mt6660_chip *chip, int on_off) +{ + u8 reg_data; + int ret; + + ret = i2c_smbus_read_byte_data(chip->i2c, MT6660_REG_SYSTEM_CTRL); + if (ret < 0) + return ret; + reg_data = (u8)ret; + if (on_off) + reg_data &= (~0x01); + else + reg_data |= 0x01; + return regmap_write(chip->regmap, MT6660_REG_SYSTEM_CTRL, reg_data); +} + +static int mt6660_apply_plat_data(struct mt6660_chip *chip, + struct snd_soc_component *component) +{ + size_t i; + int num = chip->plat_data.init_setting_num; + int ret; + + ret = _mt6660_chip_power_on(chip, 1); + if (ret < 0) { + dev_err(chip->dev, "%s power on failed\n", __func__); + return ret; + } + + for (i = 0; i < num; i++) { + ret = snd_soc_component_update_bits(component, + chip->plat_data.init_setting_addr[i], + chip->plat_data.init_setting_mask[i], + chip->plat_data.init_setting_val[i]); + if (ret < 0) + return ret; + } + ret = _mt6660_chip_power_on(chip, 0); + if (ret < 0) { + dev_err(chip->dev, "%s power on failed\n", __func__); + return ret; + } + return 0; +} + +static int mt6660_component_probe(struct snd_soc_component *component) +{ + struct mt6660_chip *chip = snd_soc_component_get_drvdata(component); + int ret; + + dev_dbg(component->dev, "%s\n", __func__); + snd_soc_component_init_regmap(component, chip->regmap); + + ret = mt6660_apply_plat_data(chip, component); + if (ret < 0) + dev_err(chip->dev, "mt6660 apply plat data failed\n"); + + return ret; +} + +static void mt6660_component_remove(struct snd_soc_component *component) +{ + dev_dbg(component->dev, "%s\n", __func__); + snd_soc_component_exit_regmap(component); +} + +static const struct snd_soc_component_driver mt6660_component_driver = { + .probe = mt6660_component_probe, + .remove = mt6660_component_remove, + + .controls = mt6660_component_snd_controls, + .num_controls = ARRAY_SIZE(mt6660_component_snd_controls), + .dapm_widgets = mt6660_component_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(mt6660_component_dapm_widgets), + .dapm_routes = mt6660_component_dapm_routes, + .num_dapm_routes = ARRAY_SIZE(mt6660_component_dapm_routes), + + .idle_bias_on = false, /* idle_bias_off = true */ +}; + +static int mt6660_component_aif_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params, struct snd_soc_dai *dai) +{ + int word_len = params_physical_width(hw_params); + int aud_bit = params_width(hw_params); + u16 reg_data = 0; + int ret; + + dev_dbg(dai->dev, "%s: ++\n", __func__); + dev_dbg(dai->dev, "format: 0x%08x\n", params_format(hw_params)); + dev_dbg(dai->dev, "rate: 0x%08x\n", params_rate(hw_params)); + dev_dbg(dai->dev, "word_len: %d, aud_bit: %d\n", word_len, aud_bit); + if (word_len > 32 || word_len < 16) { + dev_err(dai->dev, "not supported word length\n"); + return -ENOTSUPP; + } + switch (aud_bit) { + case 16: + reg_data = 3; + break; + case 18: + reg_data = 2; + break; + case 20: + reg_data = 1; + break; + case 24: + case 32: + reg_data = 0; + break; + default: + return -ENOTSUPP; + } + ret = snd_soc_component_update_bits(dai->component, + MT6660_REG_SERIAL_CFG1, 0xc0, (reg_data << 6)); + if (ret < 0) { + dev_err(dai->dev, "config aud bit fail\n"); + return ret; + } + ret = snd_soc_component_update_bits(dai->component, + MT6660_REG_TDM_CFG3, 0x3f0, word_len << 4); + if (ret < 0) { + dev_err(dai->dev, "config word len fail\n"); + return ret; + } + dev_dbg(dai->dev, "%s: --\n", __func__); + return 0; +} + +static const struct snd_soc_dai_ops mt6660_component_aif_ops = { + .hw_params = mt6660_component_aif_hw_params, +}; + +#define STUB_RATES SNDRV_PCM_RATE_8000_192000 +#define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_U16_LE | \ + SNDRV_PCM_FMTBIT_S24_LE | \ + SNDRV_PCM_FMTBIT_U24_LE | \ + SNDRV_PCM_FMTBIT_S32_LE | \ + SNDRV_PCM_FMTBIT_U32_LE) + +static struct snd_soc_dai_driver mt6660_codec_dai = { + .name = "mt6660-aif", + .playback = { + .stream_name = "aif_playback", + .channels_min = 1, + .channels_max = 2, + .rates = STUB_RATES, + .formats = STUB_FORMATS, + }, + .capture = { + .stream_name = "aif_capture", + .channels_min = 1, + .channels_max = 2, + .rates = STUB_RATES, + .formats = STUB_FORMATS, + }, + /* dai properties */ + .symmetric_rates = 1, + .symmetric_channels = 1, + .symmetric_samplebits = 1, + /* dai operations */ + .ops = &mt6660_component_aif_ops, +}; + +static inline int _mt6660_chip_id_check(struct mt6660_chip *chip) +{ + u8 id[2]; + int ret; + + ret = i2c_smbus_read_i2c_block_data(chip->i2c, MT6660_REG_DEVID, 2, id); + if (ret < 0) + return ret; + ret = (id[0] << 8) + id[1]; + ret &= 0x0ff0; + if (ret != 0x00e0 && ret != 0x01e0) { + dev_err(chip->dev, "%s id(%x) not match\n", __func__, ret); + return -ENODEV; + } + return ret; +} + +static inline int _mt6660_chip_sw_reset(struct mt6660_chip *chip) +{ + int ret; + + /* turn on main pll first, then trigger reset */ + ret = regmap_write(chip->regmap, 0x03, 0x00); + if (ret < 0) + return ret; + ret = regmap_write(chip->regmap, MT6660_REG_SYSTEM_CTRL, 0x80); + if (ret < 0) + return ret; + msleep(30); + return 0; +} + +static inline int _mt6660_read_chip_revision(struct mt6660_chip *chip) +{ + u8 reg_data[2]; + int ret; + + ret = i2c_smbus_read_i2c_block_data( + chip->i2c, MT6660_REG_DEVID, 2, reg_data); + if (ret < 0) { + dev_err(chip->dev, "get chip revision fail\n"); + return ret; + } + chip->chip_rev = reg_data[1]; + return 0; +} + +static int mt6660_parse_dt(struct mt6660_chip *chip, struct device *dev) +{ + struct device_node *np = dev->of_node; + u32 val; + size_t i; + + if (!np) { + dev_err(dev, "no device node\n"); + return -EINVAL; + } + + if (of_property_read_u32(np, "rt,init_setting_num", &val)) { + dev_err(dev, "no init setting\n"); + chip->plat_data.init_setting_num = 0; + } else { + chip->plat_data.init_setting_num = val; + } + + if (chip->plat_data.init_setting_num) { + chip->plat_data.init_setting_addr = + devm_kzalloc(dev, sizeof(u32) * + chip->plat_data.init_setting_num, GFP_KERNEL); + if (!chip->plat_data.init_setting_addr) { + dev_err(dev, "%s addr memory alloc failed\n", __func__); + return -ENOMEM; + } + chip->plat_data.init_setting_mask = + devm_kzalloc(dev, sizeof(u32) * + chip->plat_data.init_setting_num, GFP_KERNEL); + if (!chip->plat_data.init_setting_mask) { + dev_err(dev, "%s mask memory alloc failed\n", __func__); + return -ENOMEM; + } + chip->plat_data.init_setting_val = + devm_kzalloc(dev, sizeof(u32) * + chip->plat_data.init_setting_num, GFP_KERNEL); + if (!chip->plat_data.init_setting_val) { + dev_err(dev, "%s val memory alloc failed\n", __func__); + return -ENOMEM; + } + + if (of_property_read_u32_array(np, "rt,init_setting_addr", + chip->plat_data.init_setting_addr, + chip->plat_data.init_setting_num)) { + dev_err(dev, "no init setting addr\n"); + } + if (of_property_read_u32_array(np, "rt,init_setting_mask", + chip->plat_data.init_setting_mask, + chip->plat_data.init_setting_num)) { + dev_err(dev, "no init setting mask\n"); + } + if (of_property_read_u32_array(np, "rt,init_setting_val", + chip->plat_data.init_setting_val, + chip->plat_data.init_setting_num)) { + dev_err(dev, "no init setting val\n"); + } + } + + dev_dbg(dev, "%s, init stting table, num = %d\n", __func__, + chip->plat_data.init_setting_num); + for (i = 0; i < chip->plat_data.init_setting_num; i++) { + dev_dbg(dev, "0x%02x, 0x%08x, 0x%08x\n", + chip->plat_data.init_setting_addr[i], + chip->plat_data.init_setting_mask[i], + chip->plat_data.init_setting_val[i]); + } + return 0; +} + +static int mt6660_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct mt6660_chip *chip = NULL; + int ret; + + dev_dbg(&client->dev, "%s\n", __func__); + chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); + if (!chip) + return -ENOMEM; + chip->i2c = client; + chip->dev = &client->dev; + mutex_init(&chip->io_lock); + i2c_set_clientdata(client, chip); + + ret = mt6660_parse_dt(chip, &client->dev); + if (ret < 0) { + dev_err(&client->dev, "parsing dts failed\n"); + return ret; + } + + chip->regmap = devm_regmap_init(&client->dev, + NULL, chip, &mt6660_regmap_config); + if (IS_ERR(chip->regmap)) { + ret = PTR_ERR(chip->regmap); + dev_err(&client->dev, "failed to initialise regmap: %d\n", ret); + return ret; + } + + /* chip reset first */ + ret = _mt6660_chip_sw_reset(chip); + if (ret < 0) { + dev_err(chip->dev, "chip reset fail\n"); + goto probe_fail; + } + /* chip power on */ + ret = _mt6660_chip_power_on(chip, 1); + if (ret < 0) { + dev_err(chip->dev, "chip power on 2 fail\n"); + goto probe_fail; + } + /* chip devid check */ + ret = _mt6660_chip_id_check(chip); + if (ret < 0) { + dev_err(chip->dev, "chip id check fail\n"); + goto probe_fail; + } + /* chip revision get */ + ret = _mt6660_read_chip_revision(chip); + if (ret < 0) { + dev_err(chip->dev, "read chip revision fail\n"); + goto probe_fail; + } + pm_runtime_set_active(chip->dev); + pm_runtime_enable(chip->dev); + + ret = devm_snd_soc_register_component(chip->dev, + &mt6660_component_driver, + &mt6660_codec_dai, 1); + return ret; +probe_fail: + _mt6660_chip_power_on(chip, 0); + mutex_destroy(&chip->io_lock); + return ret; +} + +static int mt6660_i2c_remove(struct i2c_client *client) +{ + struct mt6660_chip *chip = i2c_get_clientdata(client); + + pm_runtime_disable(chip->dev); + pm_runtime_set_suspended(chip->dev); + mutex_destroy(&chip->io_lock); + return 0; +} + +static int __maybe_unused mt6660_i2c_runtime_suspend(struct device *dev) +{ + struct mt6660_chip *chip = dev_get_drvdata(dev); + + dev_dbg(dev, "enter low power mode\n"); + return regmap_update_bits(chip->regmap, + MT6660_REG_SYSTEM_CTRL, 0x01, 0x01); +} + +static int __maybe_unused mt6660_i2c_runtime_resume(struct device *dev) +{ + struct mt6660_chip *chip = dev_get_drvdata(dev); + + dev_dbg(dev, "exit low power mode\n"); + return regmap_update_bits(chip->regmap, + MT6660_REG_SYSTEM_CTRL, 0x01, 0x00); +} + +static const struct dev_pm_ops mt6660_dev_pm_ops = { + SET_RUNTIME_PM_OPS(mt6660_i2c_runtime_suspend, + mt6660_i2c_runtime_resume, NULL) +}; + +static const struct of_device_id __maybe_unused mt6660_of_id[] = { + { .compatible = "mediatek,mt6660",}, + {}, +}; +MODULE_DEVICE_TABLE(of, mt6660_of_id); + +static const struct i2c_device_id mt6660_i2c_id[] = { + {"mt6660", 0 }, + {}, +}; +MODULE_DEVICE_TABLE(i2c, mt6660_i2c_id); + +static struct i2c_driver mt6660_i2c_driver = { + .driver = { + .name = "mt6660", + .of_match_table = of_match_ptr(mt6660_of_id), + .pm = &mt6660_dev_pm_ops, + }, + .probe = mt6660_i2c_probe, + .remove = mt6660_i2c_remove, + .id_table = mt6660_i2c_id, +}; +module_i2c_driver(mt6660_i2c_driver); + +MODULE_AUTHOR("Jeff Chang jeff_chang@richtek.com"); +MODULE_DESCRIPTION("MT6660 SPKAMP Driver"); +MODULE_LICENSE("GPL"); +MODULE_VERSION("1.0.7_G"); diff --git a/sound/soc/codecs/mt6660.h b/sound/soc/codecs/mt6660.h new file mode 100644 index 0000000..054a3c5 --- /dev/null +++ b/sound/soc/codecs/mt6660.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2019 MediaTek Inc. + */ + +#ifndef __SND_SOC_MT6660_H +#define __SND_SOC_MT6660_H + +#include <linux/mutex.h> +#include <linux/regmap.h> + +#pragma pack(push, 1) +struct mt6660_platform_data { + u8 init_setting_num; + u32 *init_setting_addr; + u32 *init_setting_mask; + u32 *init_setting_val; +}; + +struct mt6660_chip { + struct i2c_client *i2c; + struct device *dev; + struct platform_device *param_dev; + struct mt6660_platform_data plat_data; + struct mutex io_lock; + struct regmap *regmap; + u16 chip_rev; +}; +#pragma pack(pop) + +#define MT6660_REG_DEVID (0x00) +#define MT6660_REG_SYSTEM_CTRL (0x03) +#define MT6660_REG_IRQ_STATUS1 (0x05) +#define MT6660_REG_ADDA_CLOCK (0x07) +#define MT6660_REG_SERIAL_CFG1 (0x10) +#define MT6660_REG_DATAO_SEL (0x12) +#define MT6660_REG_TDM_CFG3 (0x15) +#define MT6660_REG_HPF_CTRL (0x18) +#define MT6660_REG_HPF1_COEF (0x1A) +#define MT6660_REG_HPF2_COEF (0x1B) +#define MT6660_REG_PATH_BYPASS (0x1E) +#define MT6660_REG_WDT_CTRL (0x20) +#define MT6660_REG_HCLIP_CTRL (0x24) +#define MT6660_REG_VOL_CTRL (0x29) +#define MT6660_REG_SPS_CTRL (0x30) +#define MT6660_REG_SIGMAX (0x33) +#define MT6660_REG_CALI_T0 (0x3F) +#define MT6660_REG_BST_CTRL (0x40) +#define MT6660_REG_PROTECTION_CFG (0x46) +#define MT6660_REG_DA_GAIN (0x4c) +#define MT6660_REG_AUDIO_IN2_SEL (0x50) +#define MT6660_REG_SIG_GAIN (0x51) +#define MT6660_REG_PLL_CFG1 (0x60) +#define MT6660_REG_DRE_CTRL (0x68) +#define MT6660_REG_DRE_THDMODE (0x69) +#define MT6660_REG_DRE_CORASE (0x6B) +#define MT6660_REG_PWM_CTRL (0x70) +#define MT6660_REG_DC_PROTECT_CTRL (0x74) +#define MT6660_REG_ADC_USB_MODE (0x7c) +#define MT6660_REG_INTERNAL_CFG (0x88) +#define MT6660_REG_RESV0 (0x98) +#define MT6660_REG_RESV1 (0x99) +#define MT6660_REG_RESV2 (0x9A) +#define MT6660_REG_RESV3 (0x9B) +#define MT6660_REG_RESV6 (0xA2) +#define MT6660_REG_RESV7 (0xA3) +#define MT6660_REG_RESV10 (0xB0) +#define MT6660_REG_RESV11 (0xB1) +#define MT6660_REG_RESV16 (0xB6) +#define MT6660_REG_RESV17 (0xB7) +#define MT6660_REG_RESV19 (0xB9) +#define MT6660_REG_RESV21 (0xBB) +#define MT6660_REG_RESV23 (0xBD) +#define MT6660_REG_RESV31 (0xD3) +#define MT6660_REG_RESV40 (0xE0) + +#endif /* __SND_SOC_MT6660_H */