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/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 else 65 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 else 140 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_FALLING 265 | IRQF_ONESHOT, "rt5682", rt5682); 266 if (!ret) 267 rt5682->irq = i2c->irq; 268 else 269 dev_err(&i2c->dev, "Failed to request IRQ: %d\n", ret); 270 } 271 272#ifdef CONFIG_COMMON_CLK 273 /* 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#endif 286 287 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", 0}, 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