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/consumer.h>
19 #include <linux/mutex.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/jack.h>
24 #include <sound/soc.h>
25 #include <sound/soc-dapm.h>
26 #include <sound/initval.h>
27 #include <sound/tlv.h>
28 #include <sound/rt5682.h>
29
30 #include "rl6231.h"
31 #include "rt5682.h"
32
33 static const struct rt5682_platform_data i2s_default_platform_data = {
34 .dmic1_data_pin = RT5682_DMIC1_DATA_GPIO2,
35 .dmic1_clk_pin = RT5682_DMIC1_CLK_GPIO3,
36 .jd_src = RT5682_JD1,
37 .btndet_delay = 16,
38 .dai_clk_names[RT5682_DAI_WCLK_IDX] = "rt5682-dai-wclk",
39 .dai_clk_names[RT5682_DAI_BCLK_IDX] = "rt5682-dai-bclk",
40 };
41
42 static const struct regmap_config rt5682_regmap = {
43 .reg_bits = 16,
44 .val_bits = 16,
45 .max_register = RT5682_I2C_MODE,
46 .volatile_reg = rt5682_volatile_register,
47 .readable_reg = rt5682_readable_register,
48 .cache_type = REGCACHE_MAPLE,
49 .reg_defaults = rt5682_reg,
50 .num_reg_defaults = RT5682_REG_NUM,
51 .use_single_read = true,
52 .use_single_write = true,
53 };
54
rt5682_jd_check_handler(struct work_struct * work)55 static void rt5682_jd_check_handler(struct work_struct *work)
56 {
57 struct rt5682_priv *rt5682 = container_of(work, struct rt5682_priv,
58 jd_check_work.work);
59
60 if (snd_soc_component_read(rt5682->component, RT5682_AJD1_CTRL) & RT5682_JDH_RS_MASK)
61 /* jack out */
62 mod_delayed_work(system_power_efficient_wq,
63 &rt5682->jack_detect_work, 0);
64 else
65 schedule_delayed_work(&rt5682->jd_check_work, 500);
66 }
67
rt5682_irq(int irq,void * data)68 static irqreturn_t rt5682_irq(int irq, void *data)
69 {
70 struct rt5682_priv *rt5682 = data;
71
72 mod_delayed_work(system_power_efficient_wq,
73 &rt5682->jack_detect_work, msecs_to_jiffies(rt5682->irq_work_delay_time));
74
75 return IRQ_HANDLED;
76 }
77
78 static struct snd_soc_dai_driver rt5682_dai[] = {
79 {
80 .name = "rt5682-aif1",
81 .id = RT5682_AIF1,
82 .playback = {
83 .stream_name = "AIF1 Playback",
84 .channels_min = 1,
85 .channels_max = 2,
86 .rates = RT5682_STEREO_RATES,
87 .formats = RT5682_FORMATS,
88 },
89 .capture = {
90 .stream_name = "AIF1 Capture",
91 .channels_min = 1,
92 .channels_max = 2,
93 .rates = RT5682_STEREO_RATES,
94 .formats = RT5682_FORMATS,
95 },
96 .ops = &rt5682_aif1_dai_ops,
97 },
98 {
99 .name = "rt5682-aif2",
100 .id = RT5682_AIF2,
101 .capture = {
102 .stream_name = "AIF2 Capture",
103 .channels_min = 1,
104 .channels_max = 2,
105 .rates = RT5682_STEREO_RATES,
106 .formats = RT5682_FORMATS,
107 },
108 .ops = &rt5682_aif2_dai_ops,
109 },
110 };
111
rt5682_i2c_disable_regulators(void * data)112 static void rt5682_i2c_disable_regulators(void *data)
113 {
114 struct rt5682_priv *rt5682 = data;
115
116 regulator_bulk_disable(ARRAY_SIZE(rt5682->supplies), rt5682->supplies);
117 }
118
rt5682_i2c_probe(struct i2c_client * i2c)119 static int rt5682_i2c_probe(struct i2c_client *i2c)
120 {
121 struct rt5682_platform_data *pdata = dev_get_platdata(&i2c->dev);
122 struct rt5682_priv *rt5682;
123 int i, ret;
124 unsigned int val;
125
126 rt5682 = devm_kzalloc(&i2c->dev, sizeof(struct rt5682_priv),
127 GFP_KERNEL);
128 if (!rt5682)
129 return -ENOMEM;
130
131 i2c_set_clientdata(i2c, rt5682);
132
133 rt5682->i2c_dev = &i2c->dev;
134
135 rt5682->pdata = i2s_default_platform_data;
136
137 if (pdata)
138 rt5682->pdata = *pdata;
139 else
140 rt5682_parse_dt(rt5682, &i2c->dev);
141
142 rt5682->regmap = devm_regmap_init_i2c(i2c, &rt5682_regmap);
143 if (IS_ERR(rt5682->regmap)) {
144 ret = PTR_ERR(rt5682->regmap);
145 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
146 ret);
147 return ret;
148 }
149
150 for (i = 0; i < ARRAY_SIZE(rt5682->supplies); i++)
151 rt5682->supplies[i].supply = rt5682_supply_names[i];
152
153 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(rt5682->supplies),
154 rt5682->supplies);
155 if (ret) {
156 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
157 return ret;
158 }
159
160 ret = regulator_bulk_enable(ARRAY_SIZE(rt5682->supplies),
161 rt5682->supplies);
162 if (ret) {
163 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
164 return ret;
165 }
166
167 ret = devm_add_action_or_reset(&i2c->dev, rt5682_i2c_disable_regulators,
168 rt5682);
169 if (ret)
170 return ret;
171
172 ret = rt5682_get_ldo1(rt5682, &i2c->dev);
173 if (ret)
174 return ret;
175
176 /* Sleep for 300 ms miniumum */
177 usleep_range(300000, 350000);
178
179 regmap_write(rt5682->regmap, RT5682_I2C_MODE, 0x1);
180 usleep_range(10000, 15000);
181
182 regmap_read(rt5682->regmap, RT5682_DEVICE_ID, &val);
183 if (val != DEVICE_ID) {
184 dev_err(&i2c->dev,
185 "Device with ID register %x is not rt5682\n", val);
186 return -ENODEV;
187 }
188
189 mutex_init(&rt5682->calibrate_mutex);
190 rt5682_calibrate(rt5682);
191
192 rt5682_apply_patch_list(rt5682, &i2c->dev);
193
194 regmap_write(rt5682->regmap, RT5682_DEPOP_1, 0x0000);
195
196 /* DMIC pin*/
197 if (rt5682->pdata.dmic1_data_pin != RT5682_DMIC1_NULL) {
198 switch (rt5682->pdata.dmic1_data_pin) {
199 case RT5682_DMIC1_DATA_GPIO2: /* share with LRCK2 */
200 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1,
201 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO2);
202 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,
203 RT5682_GP2_PIN_MASK, RT5682_GP2_PIN_DMIC_SDA);
204 break;
205
206 case RT5682_DMIC1_DATA_GPIO5: /* share with DACDAT1 */
207 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1,
208 RT5682_DMIC_1_DP_MASK, RT5682_DMIC_1_DP_GPIO5);
209 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,
210 RT5682_GP5_PIN_MASK, RT5682_GP5_PIN_DMIC_SDA);
211 break;
212
213 default:
214 dev_warn(&i2c->dev, "invalid DMIC_DAT pin\n");
215 break;
216 }
217
218 switch (rt5682->pdata.dmic1_clk_pin) {
219 case RT5682_DMIC1_CLK_GPIO1: /* share with IRQ */
220 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,
221 RT5682_GP1_PIN_MASK, RT5682_GP1_PIN_DMIC_CLK);
222 break;
223
224 case RT5682_DMIC1_CLK_GPIO3: /* share with BCLK2 */
225 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,
226 RT5682_GP3_PIN_MASK, RT5682_GP3_PIN_DMIC_CLK);
227 if (rt5682->pdata.dmic_clk_driving_high)
228 regmap_update_bits(rt5682->regmap,
229 RT5682_PAD_DRIVING_CTRL,
230 RT5682_PAD_DRV_GP3_MASK,
231 2 << RT5682_PAD_DRV_GP3_SFT);
232 break;
233
234 default:
235 dev_warn(&i2c->dev, "invalid DMIC_CLK pin\n");
236 break;
237 }
238 }
239
240 regmap_update_bits(rt5682->regmap, RT5682_PWR_ANLG_1,
241 RT5682_LDO1_DVO_MASK | RT5682_HP_DRIVER_MASK,
242 RT5682_LDO1_DVO_12 | RT5682_HP_DRIVER_5X);
243 regmap_write(rt5682->regmap, RT5682_MICBIAS_2, 0x0080);
244 regmap_update_bits(rt5682->regmap, RT5682_GPIO_CTRL_1,
245 RT5682_GP4_PIN_MASK | RT5682_GP5_PIN_MASK,
246 RT5682_GP4_PIN_ADCDAT1 | RT5682_GP5_PIN_DACDAT1);
247 regmap_write(rt5682->regmap, RT5682_TEST_MODE_CTRL_1, 0x0000);
248 regmap_update_bits(rt5682->regmap, RT5682_BIAS_CUR_CTRL_8,
249 RT5682_HPA_CP_BIAS_CTRL_MASK, RT5682_HPA_CP_BIAS_3UA);
250 regmap_update_bits(rt5682->regmap, RT5682_CHARGE_PUMP_1,
251 RT5682_CP_CLK_HP_MASK, RT5682_CP_CLK_HP_300KHZ);
252 regmap_update_bits(rt5682->regmap, RT5682_HP_CHARGE_PUMP_1,
253 RT5682_PM_HP_MASK, RT5682_PM_HP_HV);
254 regmap_update_bits(rt5682->regmap, RT5682_DMIC_CTRL_1,
255 RT5682_FIFO_CLK_DIV_MASK, RT5682_FIFO_CLK_DIV_2);
256
257 INIT_DELAYED_WORK(&rt5682->jack_detect_work,
258 rt5682_jack_detect_handler);
259 INIT_DELAYED_WORK(&rt5682->jd_check_work,
260 rt5682_jd_check_handler);
261
262 if (i2c->irq) {
263 ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
264 rt5682_irq, IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING
265 | IRQF_ONESHOT, "rt5682", rt5682);
266 if (!ret)
267 rt5682->irq = i2c->irq;
268 else
269 dev_err(&i2c->dev, "Failed to request IRQ: %d\n", ret);
270 }
271
272 #ifdef CONFIG_COMMON_CLK
273 /* Check if MCLK provided */
274 rt5682->mclk = devm_clk_get_optional(&i2c->dev, "mclk");
275 if (IS_ERR(rt5682->mclk))
276 return PTR_ERR(rt5682->mclk);
277
278 /* Register CCF DAI clock control */
279 ret = rt5682_register_dai_clks(rt5682);
280 if (ret)
281 return ret;
282
283 /* Initial setup for CCF */
284 rt5682->lrck[RT5682_AIF1] = 48000;
285 #endif
286
287 return devm_snd_soc_register_component(&i2c->dev,
288 &rt5682_soc_component_dev,
289 rt5682_dai, ARRAY_SIZE(rt5682_dai));
290 }
291
rt5682_i2c_shutdown(struct i2c_client * client)292 static void rt5682_i2c_shutdown(struct i2c_client *client)
293 {
294 struct rt5682_priv *rt5682 = i2c_get_clientdata(client);
295
296 disable_irq(client->irq);
297 cancel_delayed_work_sync(&rt5682->jack_detect_work);
298 cancel_delayed_work_sync(&rt5682->jd_check_work);
299
300 rt5682_reset(rt5682);
301 }
302
rt5682_i2c_remove(struct i2c_client * client)303 static void rt5682_i2c_remove(struct i2c_client *client)
304 {
305 rt5682_i2c_shutdown(client);
306 }
307
308 static const struct of_device_id rt5682_of_match[] = {
309 {.compatible = "realtek,rt5682i"},
310 {},
311 };
312 MODULE_DEVICE_TABLE(of, rt5682_of_match);
313
314 static const struct acpi_device_id rt5682_acpi_match[] = {
315 {"10EC5682", 0,},
316 {},
317 };
318 MODULE_DEVICE_TABLE(acpi, rt5682_acpi_match);
319
320 static const struct i2c_device_id rt5682_i2c_id[] = {
321 {"rt5682"},
322 {}
323 };
324 MODULE_DEVICE_TABLE(i2c, rt5682_i2c_id);
325
326 static struct i2c_driver rt5682_i2c_driver = {
327 .driver = {
328 .name = "rt5682",
329 .of_match_table = rt5682_of_match,
330 .acpi_match_table = rt5682_acpi_match,
331 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
332 },
333 .probe = rt5682_i2c_probe,
334 .remove = rt5682_i2c_remove,
335 .shutdown = rt5682_i2c_shutdown,
336 .id_table = rt5682_i2c_id,
337 };
338 module_i2c_driver(rt5682_i2c_driver);
339
340 MODULE_DESCRIPTION("ASoC RT5682 driver");
341 MODULE_AUTHOR("Bard Liao <bardliao@realtek.com>");
342 MODULE_LICENSE("GPL v2");
343