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
rt5682_jd_check_handler(struct work_struct * work)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
rt5682_irq(int irq,void * data)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
rt5682_i2c_disable_regulators(void * data)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
rt5682_i2c_probe(struct i2c_client * i2c)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
rt5682_i2c_shutdown(struct i2c_client * client)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
rt5682_i2c_remove(struct i2c_client * client)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
