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.h> 19 #include <linux/of_gpio.h> 20 #include <linux/mutex.h> 21 #include <sound/core.h> 22 #include <sound/pcm.h> 23 #include <sound/pcm_params.h> 24 #include <sound/jack.h> 25 #include <sound/soc.h> 26 #include <sound/soc-dapm.h> 27 #include <sound/initval.h> 28 #include <sound/tlv.h> 29 #include <sound/rt5682.h> 30 31 #include "rl6231.h" 32 #include "rt5682.h" 33 34 static const struct rt5682_platform_data i2s_default_platform_data = { 35 .dmic1_data_pin = RT5682_DMIC1_DATA_GPIO2, 36 .dmic1_clk_pin = RT5682_DMIC1_CLK_GPIO3, 37 .jd_src = RT5682_JD1, 38 .btndet_delay = 16, 39 .dai_clk_names[RT5682_DAI_WCLK_IDX] = "rt5682-dai-wclk", 40 .dai_clk_names[RT5682_DAI_BCLK_IDX] = "rt5682-dai-bclk", 41 }; 42 43 static const struct regmap_config rt5682_regmap = { 44 .reg_bits = 16, 45 .val_bits = 16, 46 .max_register = RT5682_I2C_MODE, 47 .volatile_reg = rt5682_volatile_register, 48 .readable_reg = rt5682_readable_register, 49 .cache_type = REGCACHE_MAPLE, 50 .reg_defaults = rt5682_reg, 51 .num_reg_defaults = RT5682_REG_NUM, 52 .use_single_read = true, 53 .use_single_write = true, 54 }; 55 56 static void rt5682_jd_check_handler(struct work_struct *work) 57 { 58 struct rt5682_priv *rt5682 = container_of(work, struct rt5682_priv, 59 jd_check_work.work); 60 61 if (snd_soc_component_read(rt5682->component, RT5682_AJD1_CTRL) & RT5682_JDH_RS_MASK) 62 /* jack out */ 63 mod_delayed_work(system_power_efficient_wq, 64 &rt5682->jack_detect_work, 0); 65 else 66 schedule_delayed_work(&rt5682->jd_check_work, 500); 67 } 68 69 static irqreturn_t rt5682_irq(int irq, void *data) 70 { 71 struct rt5682_priv *rt5682 = data; 72 73 mod_delayed_work(system_power_efficient_wq, 74 &rt5682->jack_detect_work, msecs_to_jiffies(rt5682->irq_work_delay_time)); 75 76 return IRQ_HANDLED; 77 } 78 79 static struct snd_soc_dai_driver rt5682_dai[] = { 80 { 81 .name = "rt5682-aif1", 82 .id = RT5682_AIF1, 83 .playback = { 84 .stream_name = "AIF1 Playback", 85 .channels_min = 1, 86 .channels_max = 2, 87 .rates = RT5682_STEREO_RATES, 88 .formats = RT5682_FORMATS, 89 }, 90 .capture = { 91 .stream_name = "AIF1 Capture", 92 .channels_min = 1, 93 .channels_max = 2, 94 .rates = RT5682_STEREO_RATES, 95 .formats = RT5682_FORMATS, 96 }, 97 .ops = &rt5682_aif1_dai_ops, 98 }, 99 { 100 .name = "rt5682-aif2", 101 .id = RT5682_AIF2, 102 .capture = { 103 .stream_name = "AIF2 Capture", 104 .channels_min = 1, 105 .channels_max = 2, 106 .rates = RT5682_STEREO_RATES, 107 .formats = RT5682_FORMATS, 108 }, 109 .ops = &rt5682_aif2_dai_ops, 110 }, 111 }; 112 113 static void rt5682_i2c_disable_regulators(void *data) 114 { 115 struct rt5682_priv *rt5682 = data; 116 117 regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); 118 } 119 120 static int rt5682_i2c_probe(struct i2c_client *i2c) 121 { 122 struct rt5682_platform_data *pdata = dev_get_platdata(&i2c->dev); 123 struct rt5682_priv *rt5682; 124 int i, ret; 125 unsigned int val; 126 127 rt5682 = devm_kzalloc(&i2c->dev, sizeof(struct rt5682_priv), 128 GFP_KERNEL); 129 if (!rt5682) 130 return -ENOMEM; 131 132 i2c_set_clientdata(i2c, rt5682); 133 134 rt5682->i2c_dev = &i2c->dev; 135 136 rt5682->pdata = i2s_default_platform_data; 137 138 if (pdata) 139 rt5682->pdata = *pdata; 140 else 141 rt5682_parse_dt(rt5682, &i2c->dev); 142 143 rt5682->regmap = devm_regmap_init_i2c(i2c, &rt5682_regmap); 144 if (IS_ERR(rt5682->regmap)) { 145 ret = PTR_ERR(rt5682->regmap); 146 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 147 ret); 148 return ret; 149 } 150 151 for (i = 0; i < ARRAY_SIZE(rt5682->supplies); i++) 152 rt5682->supplies[i].supply = rt5682_supply_names[i]; 153 154 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(rt5682->supplies), 155 rt5682->supplies); 156 if (ret) { 157 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); 158 return ret; 159 } 160 161 ret = devm_add_action_or_reset(&i2c->dev, rt5682_i2c_disable_regulators, 162 rt5682); 163 if (ret) 164 return ret; 165 166 ret = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies), 167 rt5682->supplies); 168 if (ret) { 169 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); 170 return ret; 171 } 172 173 if (gpio_is_valid(rt5682->pdata.ldo1_en)) { 174 if (devm_gpio_request_one(&i2c->dev, rt5682->pdata.ldo1_en, 175 GPIOF_OUT_INIT_HIGH, "rt5682")) 176 dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); 177 } 178 179 /* Sleep for 300 ms miniumum */ 180 usleep_range(300000, 350000); 181 182 regmap_write(rt5682->regmap, RT5682_I2C_MODE, 0x1); 183 usleep_range(10000, 15000); 184 185 regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val); 186 if (val != DEVICE_ID) { 187 dev_err(&i2c->dev, 188 "Device with ID register %x is not rt5682\n", val); 189 return -ENODEV; 190 } 191 192 mutex_init(&rt5682->calibrate_mutex); 193 rt5682_calibrate(rt5682); 194 195 rt5682_apply_patch_list(rt5682, &i2c->dev); 196 197 regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000); 198 199 /* DMIC pin*/ 200 if (rt5682->pdata.dmic1_data_pin != RT5682_DMIC1_NULL) { 201 switch (rt5682->pdata.dmic1_data_pin) { 202 case RT5682_DMIC1_DATA_GPIO2: /* share with LRCK2 */ 203 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 204 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO2); 205 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 206 RT5682_GP2_PIN_MASK, RT5682_GP2_PIN_DMIC_SDA); 207 break; 208 209 case RT5682_DMIC1_DATA_GPIO5: /* share with DACDAT1 */ 210 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 211 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO5); 212 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 213 RT5682_GP5_PIN_MASK, RT5682_GP5_PIN_DMIC_SDA); 214 break; 215 216 default: 217 dev_warn(&i2c->dev, "invalid DMIC_DAT pin\n"); 218 break; 219 } 220 221 switch (rt5682->pdata.dmic1_clk_pin) { 222 case RT5682_DMIC1_CLK_GPIO1: /* share with IRQ */ 223 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 224 RT5682_GP1_PIN_MASK, RT5682_GP1_PIN_DMIC_CLK); 225 break; 226 227 case RT5682_DMIC1_CLK_GPIO3: /* share with BCLK2 */ 228 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 229 RT5682_GP3_PIN_MASK, RT5682_GP3_PIN_DMIC_CLK); 230 if (rt5682->pdata.dmic_clk_driving_high) 231 regmap_update_bits(rt5682->regmap, 232 RT5682_PAD_DRIVING_CTRL, 233 RT5682_PAD_DRV_GP3_MASK, 234 2 << RT5682_PAD_DRV_GP3_SFT); 235 break; 236 237 default: 238 dev_warn(&i2c->dev, "invalid DMIC_CLK pin\n"); 239 break; 240 } 241 } 242 243 regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1, 244 RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK, 245 RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X); 246 regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080); 247 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 248 RT5682_GP4_PIN_MASK | RT5682_GP5_PIN_MASK, 249 RT5682_GP4_PIN_ADCDAT1 | RT5682_GP5_PIN_DACDAT1); 250 regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000); 251 regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8, 252 RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA); 253 regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1, 254 RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ); 255 regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1, 256 RT5682_PM_HP_MASK, RT5682_PM_HP_HV); 257 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 258 RT5682_FIFO_CLK_DIV_MASK, RT5682_FIFO_CLK_DIV_2); 259 260 INIT_DELAYED_WORK(&rt5682->jack_detect_work, 261 rt5682_jack_detect_handler); 262 INIT_DELAYED_WORK(&rt5682->jd_check_work, 263 rt5682_jd_check_handler); 264 265 if (i2c->irq) { 266 ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, 267 rt5682_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING 268 | IRQF_ONESHOT, "rt5682", rt5682); 269 if (!ret) 270 rt5682->irq = i2c->irq; 271 else 272 dev_err(&i2c->dev, "Failed to reguest IRQ: %d\n", ret); 273 } 274 275 #ifdef CONFIG_COMMON_CLK 276 /* Check if MCLK provided */ 277 rt5682->mclk = devm_clk_get_optional(&i2c->dev, "mclk"); 278 if (IS_ERR(rt5682->mclk)) 279 return PTR_ERR(rt5682->mclk); 280 281 /* Register CCF DAI clock control */ 282 ret = rt5682_register_dai_clks(rt5682); 283 if (ret) 284 return ret; 285 286 /* Initial setup for CCF */ 287 rt5682->lrck[RT5682_AIF1] = 48000; 288 #endif 289 290 return devm_snd_soc_register_component(&i2c->dev, 291 &rt5682_soc_component_dev, 292 rt5682_dai, ARRAY_SIZE(rt5682_dai)); 293 } 294 295 static void rt5682_i2c_shutdown(struct i2c_client *client) 296 { 297 struct rt5682_priv *rt5682 = i2c_get_clientdata(client); 298 299 disable_irq(client->irq); 300 cancel_delayed_work_sync(&rt5682->jack_detect_work); 301 cancel_delayed_work_sync(&rt5682->jd_check_work); 302 303 rt5682_reset(rt5682); 304 } 305 306 static void rt5682_i2c_remove(struct i2c_client *client) 307 { 308 rt5682_i2c_shutdown(client); 309 } 310 311 static const struct of_device_id rt5682_of_match[] = { 312 {.compatible = "realtek,rt5682i"}, 313 {}, 314 }; 315 MODULE_DEVICE_TABLE(of, rt5682_of_match); 316 317 static const struct acpi_device_id rt5682_acpi_match[] = { 318 {"10EC5682", 0,}, 319 {}, 320 }; 321 MODULE_DEVICE_TABLE(acpi, rt5682_acpi_match); 322 323 static const struct i2c_device_id rt5682_i2c_id[] = { 324 {"rt5682", 0}, 325 {} 326 }; 327 MODULE_DEVICE_TABLE(i2c, rt5682_i2c_id); 328 329 static struct i2c_driver rt5682_i2c_driver = { 330 .driver = { 331 .name = "rt5682", 332 .of_match_table = rt5682_of_match, 333 .acpi_match_table = rt5682_acpi_match, 334 .probe_type = PROBE_PREFER_ASYNCHRONOUS, 335 }, 336 .probe = rt5682_i2c_probe, 337 .remove = rt5682_i2c_remove, 338 .shutdown = rt5682_i2c_shutdown, 339 .id_table = rt5682_i2c_id, 340 }; 341 module_i2c_driver(rt5682_i2c_driver); 342 343 MODULE_DESCRIPTION("ASoC RT5682 driver"); 344 MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>"); 345 MODULE_LICENSE("GPL v2"); 346