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1// SPDX-License-Identifier: GPL-2.0-only2//3// rt5682.c -- RT5682 ALSA SoC audio component driver4//5// Copyright 2018 Realtek Semiconductor Corp.6// Author: Bard Liao <bardliao@realtek.com>7//8 9#include <linux/module.h>10#include <linux/moduleparam.h>11#include <linux/init.h>12#include <linux/delay.h>13#include <linux/pm.h>14#include <linux/i2c.h>15#include <linux/platform_device.h>16#include <linux/spi/spi.h>17#include <linux/acpi.h>18#include <linux/gpio/consumer.h>19#include <linux/mutex.h>20#include <sound/core.h>21#include <sound/pcm.h>22#include <sound/pcm_params.h>23#include <sound/jack.h>24#include <sound/soc.h>25#include <sound/soc-dapm.h>26#include <sound/initval.h>27#include <sound/tlv.h>28#include <sound/rt5682.h>29 30#include "rl6231.h"31#include "rt5682.h"32 33static const struct rt5682_platform_data i2s_default_platform_data = {34 .dmic1_data_pin = RT5682_DMIC1_DATA_GPIO2,35 .dmic1_clk_pin = RT5682_DMIC1_CLK_GPIO3,36 .jd_src = RT5682_JD1,37 .btndet_delay = 16,38 .dai_clk_names[RT5682_DAI_WCLK_IDX] = "rt5682-dai-wclk",39 .dai_clk_names[RT5682_DAI_BCLK_IDX] = "rt5682-dai-bclk",40};41 42static const struct regmap_config rt5682_regmap = {43 .reg_bits = 16,44 .val_bits = 16,45 .max_register = RT5682_I2C_MODE,46 .volatile_reg = rt5682_volatile_register,47 .readable_reg = rt5682_readable_register,48 .cache_type = REGCACHE_MAPLE,49 .reg_defaults = rt5682_reg,50 .num_reg_defaults = RT5682_REG_NUM,51 .use_single_read = true,52 .use_single_write = true,53};54 55static void rt5682_jd_check_handler(struct work_struct *work)56{57 struct rt5682_priv *rt5682 = container_of(work, struct rt5682_priv,58 jd_check_work.work);59 60 if (snd_soc_component_read(rt5682->component, RT5682_AJD1_CTRL) & RT5682_JDH_RS_MASK)61 /* jack out */62 mod_delayed_work(system_power_efficient_wq,63 &rt5682->jack_detect_work, 0);64 else65 schedule_delayed_work(&rt5682->jd_check_work, 500);66}67 68static irqreturn_t rt5682_irq(int irq, void *data)69{70 struct rt5682_priv *rt5682 = data;71 72 mod_delayed_work(system_power_efficient_wq,73 &rt5682->jack_detect_work, msecs_to_jiffies(rt5682->irq_work_delay_time));74 75 return IRQ_HANDLED;76}77 78static struct snd_soc_dai_driver rt5682_dai[] = {79 {80 .name = "rt5682-aif1",81 .id = RT5682_AIF1,82 .playback = {83 .stream_name = "AIF1 Playback",84 .channels_min = 1,85 .channels_max = 2,86 .rates = RT5682_STEREO_RATES,87 .formats = RT5682_FORMATS,88 },89 .capture = {90 .stream_name = "AIF1 Capture",91 .channels_min = 1,92 .channels_max = 2,93 .rates = RT5682_STEREO_RATES,94 .formats = RT5682_FORMATS,95 },96 .ops = &rt5682_aif1_dai_ops,97 },98 {99 .name = "rt5682-aif2",100 .id = RT5682_AIF2,101 .capture = {102 .stream_name = "AIF2 Capture",103 .channels_min = 1,104 .channels_max = 2,105 .rates = RT5682_STEREO_RATES,106 .formats = RT5682_FORMATS,107 },108 .ops = &rt5682_aif2_dai_ops,109 },110};111 112static void rt5682_i2c_disable_regulators(void *data)113{114 struct rt5682_priv *rt5682 = data;115 116 regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies);117}118 119static int rt5682_i2c_probe(struct i2c_client *i2c)120{121 struct rt5682_platform_data *pdata = dev_get_platdata(&i2c->dev);122 struct rt5682_priv *rt5682;123 int i, ret;124 unsigned int val;125 126 rt5682 = devm_kzalloc(&i2c->dev, sizeof(struct rt5682_priv),127 GFP_KERNEL);128 if (!rt5682)129 return -ENOMEM;130 131 i2c_set_clientdata(i2c, rt5682);132 133 rt5682->i2c_dev = &i2c->dev;134 135 rt5682->pdata = i2s_default_platform_data;136 137 if (pdata)138 rt5682->pdata = *pdata;139 else140 rt5682_parse_dt(rt5682, &i2c->dev);141 142 rt5682->regmap = devm_regmap_init_i2c(i2c, &rt5682_regmap);143 if (IS_ERR(rt5682->regmap)) {144 ret = PTR_ERR(rt5682->regmap);145 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",146 ret);147 return ret;148 }149 150 for (i = 0; i < ARRAY_SIZE(rt5682->supplies); i++)151 rt5682->supplies[i].supply = rt5682_supply_names[i];152 153 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(rt5682->supplies),154 rt5682->supplies);155 if (ret) {156 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);157 return ret;158 }159 160 ret = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies),161 rt5682->supplies);162 if (ret) {163 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);164 return ret;165 }166 167 ret = devm_add_action_or_reset(&i2c->dev, rt5682_i2c_disable_regulators,168 rt5682);169 if (ret)170 return ret;171 172 ret = rt5682_get_ldo1(rt5682, &i2c->dev);173 if (ret)174 return ret;175 176 /* Sleep for 300 ms miniumum */177 usleep_range(300000, 350000);178 179 regmap_write(rt5682->regmap, RT5682_I2C_MODE, 0x1);180 usleep_range(10000, 15000);181 182 regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);183 if (val != DEVICE_ID) {184 dev_err(&i2c->dev,185 "Device with ID register %x is not rt5682\n", val);186 return -ENODEV;187 }188 189 mutex_init(&rt5682->calibrate_mutex);190 rt5682_calibrate(rt5682);191 192 rt5682_apply_patch_list(rt5682, &i2c->dev);193 194 regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000);195 196 /* DMIC pin*/197 if (rt5682->pdata.dmic1_data_pin != RT5682_DMIC1_NULL) {198 switch (rt5682->pdata.dmic1_data_pin) {199 case RT5682_DMIC1_DATA_GPIO2: /* share with LRCK2 */200 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1,201 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO2);202 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,203 RT5682_GP2_PIN_MASK, RT5682_GP2_PIN_DMIC_SDA);204 break;205 206 case RT5682_DMIC1_DATA_GPIO5: /* share with DACDAT1 */207 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1,208 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO5);209 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,210 RT5682_GP5_PIN_MASK, RT5682_GP5_PIN_DMIC_SDA);211 break;212 213 default:214 dev_warn(&i2c->dev, "invalid DMIC_DAT pin\n");215 break;216 }217 218 switch (rt5682->pdata.dmic1_clk_pin) {219 case RT5682_DMIC1_CLK_GPIO1: /* share with IRQ */220 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,221 RT5682_GP1_PIN_MASK, RT5682_GP1_PIN_DMIC_CLK);222 break;223 224 case RT5682_DMIC1_CLK_GPIO3: /* share with BCLK2 */225 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,226 RT5682_GP3_PIN_MASK, RT5682_GP3_PIN_DMIC_CLK);227 if (rt5682->pdata.dmic_clk_driving_high)228 regmap_update_bits(rt5682->regmap,229 RT5682_PAD_DRIVING_CTRL,230 RT5682_PAD_DRV_GP3_MASK,231 2 << RT5682_PAD_DRV_GP3_SFT);232 break;233 234 default:235 dev_warn(&i2c->dev, "invalid DMIC_CLK pin\n");236 break;237 }238 }239 240 regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1,241 RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK,242 RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X);243 regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080);244 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,245 RT5682_GP4_PIN_MASK | RT5682_GP5_PIN_MASK,246 RT5682_GP4_PIN_ADCDAT1 | RT5682_GP5_PIN_DACDAT1);247 regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000);248 regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8,249 RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA);250 regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1,251 RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ);252 regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1,253 RT5682_PM_HP_MASK, RT5682_PM_HP_HV);254 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1,255 RT5682_FIFO_CLK_DIV_MASK, RT5682_FIFO_CLK_DIV_2);256 257 INIT_DELAYED_WORK(&rt5682->jack_detect_work,258 rt5682_jack_detect_handler);259 INIT_DELAYED_WORK(&rt5682->jd_check_work,260 rt5682_jd_check_handler);261 262 if (i2c->irq) {263 ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,264 rt5682_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING265 | IRQF_ONESHOT, "rt5682", rt5682);266 if (!ret)267 rt5682->irq = i2c->irq;268 else269 dev_err(&i2c->dev, "Failed to request IRQ: %d\n", ret);270 }271 272#ifdef CONFIG_COMMON_CLK273 /* Check if MCLK provided */274 rt5682->mclk = devm_clk_get_optional(&i2c->dev, "mclk");275 if (IS_ERR(rt5682->mclk))276 return PTR_ERR(rt5682->mclk);277 278 /* Register CCF DAI clock control */279 ret = rt5682_register_dai_clks(rt5682);280 if (ret)281 return ret;282 283 /* Initial setup for CCF */284 rt5682->lrck[RT5682_AIF1] = 48000;285#endif286 287 return devm_snd_soc_register_component(&i2c->dev,288 &rt5682_soc_component_dev,289 rt5682_dai, ARRAY_SIZE(rt5682_dai));290}291 292static void rt5682_i2c_shutdown(struct i2c_client *client)293{294 struct rt5682_priv *rt5682 = i2c_get_clientdata(client);295 296 disable_irq(client->irq);297 cancel_delayed_work_sync(&rt5682->jack_detect_work);298 cancel_delayed_work_sync(&rt5682->jd_check_work);299 300 rt5682_reset(rt5682);301}302 303static void rt5682_i2c_remove(struct i2c_client *client)304{305 rt5682_i2c_shutdown(client);306}307 308static const struct of_device_id rt5682_of_match[] = {309 {.compatible = "realtek,rt5682i"},310 {},311};312MODULE_DEVICE_TABLE(of, rt5682_of_match);313 314static const struct acpi_device_id rt5682_acpi_match[] = {315 {"10EC5682", 0,},316 {},317};318MODULE_DEVICE_TABLE(acpi, rt5682_acpi_match);319 320static const struct i2c_device_id rt5682_i2c_id[] = {321 {"rt5682"},322 {}323};324MODULE_DEVICE_TABLE(i2c, rt5682_i2c_id);325 326static struct i2c_driver rt5682_i2c_driver = {327 .driver = {328 .name = "rt5682",329 .of_match_table = rt5682_of_match,330 .acpi_match_table = rt5682_acpi_match,331 .probe_type = PROBE_PREFER_ASYNCHRONOUS,332 },333 .probe = rt5682_i2c_probe,334 .remove = rt5682_i2c_remove,335 .shutdown = rt5682_i2c_shutdown,336 .id_table = rt5682_i2c_id,337};338module_i2c_driver(rt5682_i2c_driver);339 340MODULE_DESCRIPTION("ASoC RT5682 driver");341MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>");342MODULE_LICENSE("GPL v2");343