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 35 static 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 44 static 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 57 static 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) & RT5682_JDH_RS_MASK) 63 /* jack out */ 64 mod_delayed_work(system_power_efficient_wq, 65 &rt5682->jack_detect_work, 0); 66 else 67 schedule_delayed_work(&rt5682->jd_check_work, 500); 68 } 69 70 static irqreturn_t rt5682_irq(int irq, void *data) 71 { 72 struct rt5682_priv *rt5682 = data; 73 74 mod_delayed_work(system_power_efficient_wq, 75 &rt5682->jack_detect_work, msecs_to_jiffies(rt5682->irq_work_delay_time)); 76 77 return IRQ_HANDLED; 78 } 79 80 static struct snd_soc_dai_driver rt5682_dai[] = { 81 { 82 .name = "rt5682-aif1", 83 .id = RT5682_AIF1, 84 .playback = { 85 .stream_name = "AIF1 Playback", 86 .channels_min = 1, 87 .channels_max = 2, 88 .rates = RT5682_STEREO_RATES, 89 .formats = RT5682_FORMATS, 90 }, 91 .capture = { 92 .stream_name = "AIF1 Capture", 93 .channels_min = 1, 94 .channels_max = 2, 95 .rates = RT5682_STEREO_RATES, 96 .formats = RT5682_FORMATS, 97 }, 98 .ops = &rt5682_aif1_dai_ops, 99 }, 100 { 101 .name = "rt5682-aif2", 102 .id = RT5682_AIF2, 103 .capture = { 104 .stream_name = "AIF2 Capture", 105 .channels_min = 1, 106 .channels_max = 2, 107 .rates = RT5682_STEREO_RATES, 108 .formats = RT5682_FORMATS, 109 }, 110 .ops = &rt5682_aif2_dai_ops, 111 }, 112 }; 113 114 static void rt5682_i2c_disable_regulators(void *data) 115 { 116 struct rt5682_priv *rt5682 = data; 117 118 regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); 119 } 120 121 static int rt5682_i2c_probe(struct i2c_client *i2c) 122 { 123 struct rt5682_platform_data *pdata = dev_get_platdata(&i2c->dev); 124 struct rt5682_priv *rt5682; 125 int i, ret; 126 unsigned int val; 127 128 rt5682 = devm_kzalloc(&i2c->dev, sizeof(struct rt5682_priv), 129 GFP_KERNEL); 130 if (!rt5682) 131 return -ENOMEM; 132 133 i2c_set_clientdata(i2c, rt5682); 134 135 rt5682->i2c_dev = &i2c->dev; 136 137 rt5682->pdata = i2s_default_platform_data; 138 139 if (pdata) 140 rt5682->pdata = *pdata; 141 else 142 rt5682_parse_dt(rt5682, &i2c->dev); 143 144 rt5682->regmap = devm_regmap_init_i2c(i2c, &rt5682_regmap); 145 if (IS_ERR(rt5682->regmap)) { 146 ret = PTR_ERR(rt5682->regmap); 147 dev_err(&i2c->dev, "Failed to allocate register map: %d\n", 148 ret); 149 return ret; 150 } 151 152 for (i = 0; i < ARRAY_SIZE(rt5682->supplies); i++) 153 rt5682->supplies[i].supply = rt5682_supply_names[i]; 154 155 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(rt5682->supplies), 156 rt5682->supplies); 157 if (ret) { 158 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); 159 return ret; 160 } 161 162 ret = devm_add_action_or_reset(&i2c->dev, rt5682_i2c_disable_regulators, 163 rt5682); 164 if (ret) 165 return ret; 166 167 ret = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies), 168 rt5682->supplies); 169 if (ret) { 170 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); 171 return ret; 172 } 173 174 if (gpio_is_valid(rt5682->pdata.ldo1_en)) { 175 if (devm_gpio_request_one(&i2c->dev, rt5682->pdata.ldo1_en, 176 GPIOF_OUT_INIT_HIGH, "rt5682")) 177 dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); 178 } 179 180 /* Sleep for 300 ms miniumum */ 181 usleep_range(300000, 350000); 182 183 regmap_write(rt5682->regmap, RT5682_I2C_MODE, 0x1); 184 usleep_range(10000, 15000); 185 186 regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val); 187 if (val != DEVICE_ID) { 188 dev_err(&i2c->dev, 189 "Device with ID register %x is not rt5682\n", val); 190 return -ENODEV; 191 } 192 193 mutex_init(&rt5682->calibrate_mutex); 194 rt5682_calibrate(rt5682); 195 196 rt5682_apply_patch_list(rt5682, &i2c->dev); 197 198 regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000); 199 200 /* DMIC pin*/ 201 if (rt5682->pdata.dmic1_data_pin != RT5682_DMIC1_NULL) { 202 switch (rt5682->pdata.dmic1_data_pin) { 203 case RT5682_DMIC1_DATA_GPIO2: /* share with LRCK2 */ 204 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 205 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO2); 206 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 207 RT5682_GP2_PIN_MASK, RT5682_GP2_PIN_DMIC_SDA); 208 break; 209 210 case RT5682_DMIC1_DATA_GPIO5: /* share with DACDAT1 */ 211 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, 212 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO5); 213 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 214 RT5682_GP5_PIN_MASK, RT5682_GP5_PIN_DMIC_SDA); 215 break; 216 217 default: 218 dev_warn(&i2c->dev, "invalid DMIC_DAT pin\n"); 219 break; 220 } 221 222 switch (rt5682->pdata.dmic1_clk_pin) { 223 case RT5682_DMIC1_CLK_GPIO1: /* share with IRQ */ 224 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 225 RT5682_GP1_PIN_MASK, RT5682_GP1_PIN_DMIC_CLK); 226 break; 227 228 case RT5682_DMIC1_CLK_GPIO3: /* share with BCLK2 */ 229 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, 230 RT5682_GP3_PIN_MASK, RT5682_GP3_PIN_DMIC_CLK); 231 if (rt5682->pdata.dmic_clk_driving_high) 232 regmap_update_bits(rt5682->regmap, 233 RT5682_PAD_DRIVING_CTRL, 234 RT5682_PAD_DRV_GP3_MASK, 235 2 << RT5682_PAD_DRV_GP3_SFT); 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 #ifdef CONFIG_COMMON_CLK 275 /* Check if MCLK provided */ 276 rt5682->mclk = devm_clk_get_optional(&i2c->dev, "mclk"); 277 if (IS_ERR(rt5682->mclk)) 278 return PTR_ERR(rt5682->mclk); 279 280 /* Register CCF DAI clock control */ 281 ret = rt5682_register_dai_clks(rt5682); 282 if (ret) 283 return ret; 284 285 /* Initial setup for CCF */ 286 rt5682->lrck[RT5682_AIF1] = 48000; 287 #endif 288 289 return devm_snd_soc_register_component(&i2c->dev, 290 &rt5682_soc_component_dev, 291 rt5682_dai, ARRAY_SIZE(rt5682_dai)); 292 } 293 294 static void rt5682_i2c_shutdown(struct i2c_client *client) 295 { 296 struct rt5682_priv *rt5682 = i2c_get_clientdata(client); 297 298 disable_irq(client->irq); 299 cancel_delayed_work_sync(&rt5682->jack_detect_work); 300 cancel_delayed_work_sync(&rt5682->jd_check_work); 301 302 rt5682_reset(rt5682); 303 } 304 305 static void rt5682_i2c_remove(struct i2c_client *client) 306 { 307 rt5682_i2c_shutdown(client); 308 } 309 310 static const struct of_device_id rt5682_of_match[] = { 311 {.compatible = "realtek,rt5682i"}, 312 {}, 313 }; 314 MODULE_DEVICE_TABLE(of, rt5682_of_match); 315 316 static const struct acpi_device_id rt5682_acpi_match[] = { 317 {"10EC5682", 0,}, 318 {}, 319 }; 320 MODULE_DEVICE_TABLE(acpi, rt5682_acpi_match); 321 322 static const struct i2c_device_id rt5682_i2c_id[] = { 323 {"rt5682", 0}, 324 {} 325 }; 326 MODULE_DEVICE_TABLE(i2c, rt5682_i2c_id); 327 328 static struct i2c_driver rt5682_i2c_driver = { 329 .driver = { 330 .name = "rt5682", 331 .of_match_table = rt5682_of_match, 332 .acpi_match_table = rt5682_acpi_match, 333 .probe_type = PROBE_PREFER_ASYNCHRONOUS, 334 }, 335 .probe_new = rt5682_i2c_probe, 336 .remove = rt5682_i2c_remove, 337 .shutdown = rt5682_i2c_shutdown, 338 .id_table = rt5682_i2c_id, 339 }; 340 module_i2c_driver(rt5682_i2c_driver); 341 342 MODULE_DESCRIPTION("ASoC RT5682 driver"); 343 MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>"); 344 MODULE_LICENSE("GPL v2"); 345