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-rw-r--r--sound/soc/codecs/rt5682-i2c.c342
1 files changed, 342 insertions, 0 deletions
diff --git a/sound/soc/codecs/rt5682-i2c.c b/sound/soc/codecs/rt5682-i2c.c
new file mode 100644
index 0000000000..fbad1ed066
--- /dev/null
+++ b/sound/soc/codecs/rt5682-i2c.c
@@ -0,0 +1,342 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// rt5682.c -- RT5682 ALSA SoC audio component driver
+//
+// Copyright 2018 Realtek Semiconductor Corp.
+// Author: Bard Liao <bardliao@realtek.com>
+//
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/acpi.h>
+#include <linux/gpio/consumer.h>
+#include <linux/mutex.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <sound/tlv.h>
+#include <sound/rt5682.h>
+
+#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_MAPLE,
+ .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 = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies),
+ rt5682->supplies);
+ if (ret) {
+ dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_add_action_or_reset(&i2c->dev, rt5682_i2c_disable_regulators,
+ rt5682);
+ if (ret)
+ return ret;
+
+ ret = rt5682_get_ldo1(rt5682, &i2c->dev);
+ if (ret)
+ return ret;
+
+ /* 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)
+ rt5682->irq = i2c->irq;
+ else
+ 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 <bardliao@realtek.com>");
+MODULE_LICENSE("GPL v2");