1// SPDX-License-Identifier: GPL-2.0-only 2// 3// rt5682.c -- RT5682 ALSA SoC audio component driver 4// 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/pm_runtime.h> 15#include <linux/i2c.h> 16#include <linux/platform_device.h> 17#include <linux/spi/spi.h> 18#include <linux/acpi.h> 19#include <linux/gpio.h> 20#include <linux/of_gpio.h> 21#include <linux/mutex.h> 22#include <sound/core.h> 23#include <sound/pcm.h> 24#include <sound/pcm_params.h> 25#include <sound/jack.h> 26#include <sound/soc.h> 27#include <sound/soc-dapm.h> 28#include <sound/initval.h> 29#include <sound/tlv.h> 30#include <sound/rt5682.h> 31 32#include "rl6231.h" 33#include "rt5682.h" 34 35static const struct rt5682_platform_data i2s_default_platform_data = { 36 .dmic1_data_pin = RT5682_DMIC1_DATA_GPIO2, 37 .dmic1_clk_pin = RT5682_DMIC1_CLK_GPIO3, 38 .jd_src = RT5682_JD1, 39 .btndet_delay = 16, 40 .dai_clk_names[RT5682_DAI_WCLK_IDX] = "rt5682-dai-wclk", 41 .dai_clk_names[RT5682_DAI_BCLK_IDX] = "rt5682-dai-bclk", 42}; 43 44static const struct regmap_config rt5682_regmap = { 45 .reg_bits = 16, 46 .val_bits = 16, 47 .max_register = RT5682_I2C_MODE, 48 .volatile_reg = rt5682_volatile_register, 49 .readable_reg = rt5682_readable_register, 50 .cache_type = REGCACHE_RBTREE, 51 .reg_defaults = rt5682_reg, 52 .num_reg_defaults = RT5682_REG_NUM, 53 .use_single_read = true, 54 .use_single_write = true, 55}; 56 57static void rt5682_jd_check_handler(struct work_struct *work) 58{ 59 struct rt5682_priv *rt5682 = container_of(work, struct rt5682_priv, 60 jd_check_work.work); 61 62 if (snd_soc_component_read(rt5682->component, RT5682_AJD1_CTRL) 63 & RT5682_JDH_RS_MASK) { 64 /* jack out */ 65 rt5682->jack_type = rt5682_headset_detect(rt5682->component, 0); 66 67 snd_soc_jack_report(rt5682->hs_jack, rt5682->jack_type, 68 SND_JACK_HEADSET | 69 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 70 SND_JACK_BTN_2 | SND_JACK_BTN_3); 71 } else { 72 schedule_delayed_work(&rt5682->jd_check_work, 500); 73 } 74} 75 76static irqreturn_t rt5682_irq(int irq, void *data) 77{ 78 struct rt5682_priv *rt5682 = data; 79 80 mod_delayed_work(system_power_efficient_wq, 81 &rt5682->jack_detect_work, msecs_to_jiffies(250)); 82 83 return IRQ_HANDLED; 84} 85 86static struct snd_soc_dai_driver rt5682_dai[] = { 87 { 88 .name = "rt5682-aif1", 89 .id = RT5682_AIF1, 90 .playback = { 91 .stream_name = "AIF1 Playback", 92 .channels_min = 1, 93 .channels_max = 2, 94 .rates = RT5682_STEREO_RATES, 95 .formats = RT5682_FORMATS, 96 }, 97 .capture = { 98 .stream_name = "AIF1 Capture", 99 .channels_min = 1, 100 .channels_max = 2, 101 .rates = RT5682_STEREO_RATES, 102 .formats = RT5682_FORMATS, 103 }, 104 .ops = &rt5682_aif1_dai_ops, 105 }, 106 { 107 .name = "rt5682-aif2", 108 .id = RT5682_AIF2, 109 .capture = { 110 .stream_name = "AIF2 Capture", 111 .channels_min = 1, 112 .channels_max = 2, 113 .rates = RT5682_STEREO_RATES, 114 .formats = RT5682_FORMATS, 115 }, 116 .ops = &rt5682_aif2_dai_ops, 117 }, 118}; 119 120static void rt5682_i2c_disable_regulators(void *data) 121{ 122 struct rt5682_priv *rt5682 = data; 123 124 regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); 125} 126 127static int rt5682_i2c_probe(struct i2c_client *i2c, 128 const struct i2c_device_id *id) 129{ 130 struct rt5682_platform_data *pdata = dev_get_platdata(&i2c->dev); 131 struct rt5682_priv *rt5682; 132 int i, ret; 133 unsigned int val; 134 135 rt5682 = devm_kzalloc(&i2c->dev, sizeof(struct rt5682_priv), 136 GFP_KERNEL); 137 if (!rt5682) 138 return -ENOMEM; 139 140 i2c_set_clientdata(i2c, rt5682); 141 142 rt5682->pdata = i2s_default_platform_data; 143 144 if (pdata) 145 rt5682->pdata = *pdata; 146 else 147 rt5682_parse_dt(rt5682, &i2c->dev); 148 149 rt5682->regmap = devm_regmap_init_i2c(i2c, &rt5682_regmap); 150 if (IS_ERR(rt5682->regmap)) { 151 ret = PTR_ERR(rt5682->regmap); 152 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 153 ret); 154 return ret; 155 } 156 157 for (i = 0; i < ARRAY_SIZE(rt5682->supplies); i++) 158 rt5682->supplies[i].supply = rt5682_supply_names[i]; 159 160 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(rt5682->supplies), 161 rt5682->supplies); 162 if (ret) { 163 dev_err(&i2c->dev, "Failed to request 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 = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies), 173 rt5682->supplies); 174 if (ret) { 175 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); 176 return ret; 177 } 178 179 if (gpio_is_valid(rt5682->pdata.ldo1_en)) { 180 if (devm_gpio_request_one(&i2c->dev, rt5682->pdata.ldo1_en, 181 GPIOF_OUT_INIT_HIGH, "rt5682")) 182 dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); 183 } 184 185 /* Sleep for 300 ms miniumum */ 186 usleep_range(300000, 350000); 187 188 regmap_write(rt5682->regmap, RT5682_I2C_MODE, 0x1); 189 usleep_range(10000, 15000); 190 191 regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val); 192 if (val != DEVICE_ID) { 193 dev_err(&i2c->dev, 194 "Device with ID register %x is not rt5682\n", val); 195 return -ENODEV; 196 } 197 198 mutex_init(&rt5682->calibrate_mutex); 199 rt5682_calibrate(rt5682); 200 201 rt5682_apply_patch_list(rt5682, &i2c->dev); 202 203 regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000); 204 205 /* DMIC pin*/ 206 if (rt5682->pdata.dmic1_data_pin != RT5682_DMIC1_NULL) { 207 switch (rt5682->pdata.dmic1_data_pin) { 208 case RT5682_DMIC1_DATA_GPIO2: /* share with LRCK2 */ 209 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 210 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO2); 211 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 212 RT5682_GP2_PIN_MASK, RT5682_GP2_PIN_DMIC_SDA); 213 break; 214 215 case RT5682_DMIC1_DATA_GPIO5: /* share with DACDAT1 */ 216 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 217 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO5); 218 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 219 RT5682_GP5_PIN_MASK, RT5682_GP5_PIN_DMIC_SDA); 220 break; 221 222 default: 223 dev_warn(&i2c->dev, "invalid DMIC_DAT pin\n"); 224 break; 225 } 226 227 switch (rt5682->pdata.dmic1_clk_pin) { 228 case RT5682_DMIC1_CLK_GPIO1: /* share with IRQ */ 229 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 230 RT5682_GP1_PIN_MASK, RT5682_GP1_PIN_DMIC_CLK); 231 break; 232 233 case RT5682_DMIC1_CLK_GPIO3: /* share with BCLK2 */ 234 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 235 RT5682_GP3_PIN_MASK, RT5682_GP3_PIN_DMIC_CLK); 236 break; 237 238 default: 239 dev_warn(&i2c->dev, "invalid DMIC_CLK pin\n"); 240 break; 241 } 242 } 243 244 regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1, 245 RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK, 246 RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X); 247 regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080); 248 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 249 RT5682_GP4_PIN_MASK | RT5682_GP5_PIN_MASK, 250 RT5682_GP4_PIN_ADCDAT1 | RT5682_GP5_PIN_DACDAT1); 251 regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000); 252 regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8, 253 RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA); 254 regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1, 255 RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ); 256 regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1, 257 RT5682_PM_HP_MASK, RT5682_PM_HP_HV); 258 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 259 RT5682_FIFO_CLK_DIV_MASK, RT5682_FIFO_CLK_DIV_2); 260 261 INIT_DELAYED_WORK(&rt5682->jack_detect_work, 262 rt5682_jack_detect_handler); 263 INIT_DELAYED_WORK(&rt5682->jd_check_work, 264 rt5682_jd_check_handler); 265 266 if (i2c->irq) { 267 ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, 268 rt5682_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING 269 | IRQF_ONESHOT, "rt5682", rt5682); 270 if (ret) 271 dev_err(&i2c->dev, "Failed to reguest IRQ: %d\n", ret); 272 } 273 274 return devm_snd_soc_register_component(&i2c->dev, 275 &rt5682_soc_component_dev, 276 rt5682_dai, ARRAY_SIZE(rt5682_dai)); 277} 278 279static void rt5682_i2c_shutdown(struct i2c_client *client) 280{ 281 struct rt5682_priv *rt5682 = i2c_get_clientdata(client); 282 283 disable_irq(client->irq); 284 cancel_delayed_work_sync(&rt5682->jack_detect_work); 285 cancel_delayed_work_sync(&rt5682->jd_check_work); 286 287 rt5682_reset(rt5682); 288} 289 290static int rt5682_i2c_remove(struct i2c_client *client) 291{ 292 rt5682_i2c_shutdown(client); 293 294 return 0; 295} 296 297static const struct of_device_id rt5682_of_match[] = { 298 {.compatible = "realtek,rt5682i"}, 299 {}, 300}; 301MODULE_DEVICE_TABLE(of, rt5682_of_match); 302 303static const struct acpi_device_id rt5682_acpi_match[] = { 304 {"10EC5682", 0,}, 305 {}, 306}; 307MODULE_DEVICE_TABLE(acpi, rt5682_acpi_match); 308 309static const struct i2c_device_id rt5682_i2c_id[] = { 310 {"rt5682", 0}, 311 {} 312}; 313MODULE_DEVICE_TABLE(i2c, rt5682_i2c_id); 314 315static struct i2c_driver rt5682_i2c_driver = { 316 .driver = { 317 .name = "rt5682", 318 .of_match_table = rt5682_of_match, 319 .acpi_match_table = rt5682_acpi_match, 320 .probe_type = PROBE_PREFER_ASYNCHRONOUS, 321 }, 322 .probe = rt5682_i2c_probe, 323 .remove = rt5682_i2c_remove, 324 .shutdown = rt5682_i2c_shutdown, 325 .id_table = rt5682_i2c_id, 326}; 327module_i2c_driver(rt5682_i2c_driver); 328 329MODULE_DESCRIPTION("ASoC RT5682 driver"); 330MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>"); 331MODULE_LICENSE("GPL v2"); 332