// SPDX-License-Identifier: GPL-2.0-only // // rt5682.c -- RT5682 ALSA SoC audio component driver // // Copyright 2018 Realtek Semiconductor Corp. // Author: Bard Liao // #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "rl6231.h" #include "rt5682.h" static const struct rt5682_platform_data i2s_default_platform_data = { .dmic1_data_pin = RT5682_DMIC1_DATA_GPIO2, .dmic1_clk_pin = RT5682_DMIC1_CLK_GPIO3, .jd_src = RT5682_JD1, .btndet_delay = 16, .dai_clk_names[RT5682_DAI_WCLK_IDX] = "rt5682-dai-wclk", .dai_clk_names[RT5682_DAI_BCLK_IDX] = "rt5682-dai-bclk", }; static const struct regmap_config rt5682_regmap = { .reg_bits = 16, .val_bits = 16, .max_register = RT5682_I2C_MODE, .volatile_reg = rt5682_volatile_register, .readable_reg = rt5682_readable_register, .cache_type = REGCACHE_RBTREE, .reg_defaults = rt5682_reg, .num_reg_defaults = RT5682_REG_NUM, .use_single_read = true, .use_single_write = true, }; static void rt5682_jd_check_handler(struct work_struct *work) { struct rt5682_priv *rt5682 = container_of(work, struct rt5682_priv, jd_check_work.work); if (snd_soc_component_read(rt5682->component, RT5682_AJD1_CTRL) & RT5682_JDH_RS_MASK) /* jack out */ mod_delayed_work(system_power_efficient_wq, &rt5682->jack_detect_work, 0); else schedule_delayed_work(&rt5682->jd_check_work, 500); } static irqreturn_t rt5682_irq(int irq, void *data) { struct rt5682_priv *rt5682 = data; mod_delayed_work(system_power_efficient_wq, &rt5682->jack_detect_work, msecs_to_jiffies(rt5682->irq_work_delay_time)); return IRQ_HANDLED; } static struct snd_soc_dai_driver rt5682_dai[] = { { .name = "rt5682-aif1", .id = RT5682_AIF1, .playback = { .stream_name = "AIF1 Playback", .channels_min = 1, .channels_max = 2, .rates = RT5682_STEREO_RATES, .formats = RT5682_FORMATS, }, .capture = { .stream_name = "AIF1 Capture", .channels_min = 1, .channels_max = 2, .rates = RT5682_STEREO_RATES, .formats = RT5682_FORMATS, }, .ops = &rt5682_aif1_dai_ops, }, { .name = "rt5682-aif2", .id = RT5682_AIF2, .capture = { .stream_name = "AIF2 Capture", .channels_min = 1, .channels_max = 2, .rates = RT5682_STEREO_RATES, .formats = RT5682_FORMATS, }, .ops = &rt5682_aif2_dai_ops, }, }; static void rt5682_i2c_disable_regulators(void *data) { struct rt5682_priv *rt5682 = data; regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); } static int rt5682_i2c_probe(struct i2c_client *i2c) { struct rt5682_platform_data *pdata = dev_get_platdata(&i2c->dev); struct rt5682_priv *rt5682; int i, ret; unsigned int val; rt5682 = devm_kzalloc(&i2c->dev, sizeof(struct rt5682_priv), GFP_KERNEL); if (!rt5682) return -ENOMEM; i2c_set_clientdata(i2c, rt5682); rt5682->i2c_dev = &i2c->dev; rt5682->pdata = i2s_default_platform_data; if (pdata) rt5682->pdata = *pdata; else rt5682_parse_dt(rt5682, &i2c->dev); rt5682->regmap = devm_regmap_init_i2c(i2c, &rt5682_regmap); if (IS_ERR(rt5682->regmap)) { ret = PTR_ERR(rt5682->regmap); dev_err(&i2c->dev, "Failed to allocate register map: %d\n", ret); return ret; } for (i = 0; i < ARRAY_SIZE(rt5682->supplies); i++) rt5682->supplies[i].supply = rt5682_supply_names[i]; ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(rt5682->supplies), rt5682->supplies); if (ret) { dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); return ret; } ret = devm_add_action_or_reset(&i2c->dev, rt5682_i2c_disable_regulators, rt5682); if (ret) return ret; ret = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies); if (ret) { dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); return ret; } if (gpio_is_valid(rt5682->pdata.ldo1_en)) { if (devm_gpio_request_one(&i2c->dev, rt5682->pdata.ldo1_en, GPIOF_OUT_INIT_HIGH, "rt5682")) dev_err(&i2c->dev, "Fail gpio_request gpio_ldo\n"); } /* Sleep for 300 ms miniumum */ usleep_range(300000, 350000); regmap_write(rt5682->regmap, RT5682_I2C_MODE, 0x1); usleep_range(10000, 15000); regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val); if (val != DEVICE_ID) { dev_err(&i2c->dev, "Device with ID register %x is not rt5682\n", val); return -ENODEV; } mutex_init(&rt5682->calibrate_mutex); rt5682_calibrate(rt5682); rt5682_apply_patch_list(rt5682, &i2c->dev); regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000); /* DMIC pin*/ if (rt5682->pdata.dmic1_data_pin != RT5682_DMIC1_NULL) { switch (rt5682->pdata.dmic1_data_pin) { case RT5682_DMIC1_DATA_GPIO2: /* share with LRCK2 */ regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO2); regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, RT5682_GP2_PIN_MASK, RT5682_GP2_PIN_DMIC_SDA); break; case RT5682_DMIC1_DATA_GPIO5: /* share with DACDAT1 */ regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO5); regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, RT5682_GP5_PIN_MASK, RT5682_GP5_PIN_DMIC_SDA); break; default: dev_warn(&i2c->dev, "invalid DMIC_DAT pin\n"); break; } switch (rt5682->pdata.dmic1_clk_pin) { case RT5682_DMIC1_CLK_GPIO1: /* share with IRQ */ regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, RT5682_GP1_PIN_MASK, RT5682_GP1_PIN_DMIC_CLK); break; case RT5682_DMIC1_CLK_GPIO3: /* share with BCLK2 */ regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, RT5682_GP3_PIN_MASK, RT5682_GP3_PIN_DMIC_CLK); if (rt5682->pdata.dmic_clk_driving_high) regmap_update_bits(rt5682->regmap, RT5682_PAD_DRIVING_CTRL, RT5682_PAD_DRV_GP3_MASK, 2 << RT5682_PAD_DRV_GP3_SFT); break; default: dev_warn(&i2c->dev, "invalid DMIC_CLK pin\n"); break; } } regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1, RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK, RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X); regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080); regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1, RT5682_GP4_PIN_MASK | RT5682_GP5_PIN_MASK, RT5682_GP4_PIN_ADCDAT1 | RT5682_GP5_PIN_DACDAT1); regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000); regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8, RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA); regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1, RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ); regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1, RT5682_PM_HP_MASK, RT5682_PM_HP_HV); regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1, RT5682_FIFO_CLK_DIV_MASK, RT5682_FIFO_CLK_DIV_2); INIT_DELAYED_WORK(&rt5682->jack_detect_work, rt5682_jack_detect_handler); INIT_DELAYED_WORK(&rt5682->jd_check_work, rt5682_jd_check_handler); if (i2c->irq) { ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL, rt5682_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "rt5682", rt5682); if (ret) dev_err(&i2c->dev, "Failed to reguest IRQ: %d\n", ret); } #ifdef CONFIG_COMMON_CLK /* Check if MCLK provided */ rt5682->mclk = devm_clk_get_optional(&i2c->dev, "mclk"); if (IS_ERR(rt5682->mclk)) return PTR_ERR(rt5682->mclk); /* Register CCF DAI clock control */ ret = rt5682_register_dai_clks(rt5682); if (ret) return ret; /* Initial setup for CCF */ rt5682->lrck[RT5682_AIF1] = 48000; #endif return devm_snd_soc_register_component(&i2c->dev, &rt5682_soc_component_dev, rt5682_dai, ARRAY_SIZE(rt5682_dai)); } static void rt5682_i2c_shutdown(struct i2c_client *client) { struct rt5682_priv *rt5682 = i2c_get_clientdata(client); disable_irq(client->irq); cancel_delayed_work_sync(&rt5682->jack_detect_work); cancel_delayed_work_sync(&rt5682->jd_check_work); rt5682_reset(rt5682); } static void rt5682_i2c_remove(struct i2c_client *client) { rt5682_i2c_shutdown(client); } static const struct of_device_id rt5682_of_match[] = { {.compatible = "realtek,rt5682i"}, {}, }; MODULE_DEVICE_TABLE(of, rt5682_of_match); static const struct acpi_device_id rt5682_acpi_match[] = { {"10EC5682", 0,}, {}, }; MODULE_DEVICE_TABLE(acpi, rt5682_acpi_match); static const struct i2c_device_id rt5682_i2c_id[] = { {"rt5682", 0}, {} }; MODULE_DEVICE_TABLE(i2c, rt5682_i2c_id); static struct i2c_driver rt5682_i2c_driver = { .driver = { .name = "rt5682", .of_match_table = rt5682_of_match, .acpi_match_table = rt5682_acpi_match, .probe_type = PROBE_PREFER_ASYNCHRONOUS, }, .probe = rt5682_i2c_probe, .remove = rt5682_i2c_remove, .shutdown = rt5682_i2c_shutdown, .id_table = rt5682_i2c_id, }; module_i2c_driver(rt5682_i2c_driver); MODULE_DESCRIPTION("ASoC RT5682 driver"); MODULE_AUTHOR("Bard Liao "); MODULE_LICENSE("GPL v2");