Commit | Line | Data |
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d7d8d7a2 KK |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // max77693.c - mfd core driver for the MAX 77693 | |
4 | // | |
5 | // Copyright (C) 2012 Samsung Electronics | |
6 | // SangYoung Son <hello.son@samsung.com> | |
7 | // | |
8 | // This program is not provided / owned by Maxim Integrated Products. | |
9 | // | |
10 | // This driver is based on max8997.c | |
83871c00 CC |
11 | |
12 | #include <linux/module.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/i2c.h> | |
15 | #include <linux/err.h> | |
16 | #include <linux/interrupt.h> | |
71c7f93e | 17 | #include <linux/of.h> |
83871c00 CC |
18 | #include <linux/pm_runtime.h> |
19 | #include <linux/mutex.h> | |
20 | #include <linux/mfd/core.h> | |
21 | #include <linux/mfd/max77693.h> | |
61b305cd | 22 | #include <linux/mfd/max77693-common.h> |
83871c00 CC |
23 | #include <linux/mfd/max77693-private.h> |
24 | #include <linux/regulator/machine.h> | |
25 | #include <linux/regmap.h> | |
26 | ||
27 | #define I2C_ADDR_PMIC (0xCC >> 1) /* Charger, Flash LED */ | |
28 | #define I2C_ADDR_MUIC (0x4A >> 1) | |
29 | #define I2C_ADDR_HAPTIC (0x90 >> 1) | |
30 | ||
7c0517b1 | 31 | static const struct mfd_cell max77693_devs[] = { |
83871c00 | 32 | { .name = "max77693-pmic", }, |
efa3ca41 KK |
33 | { |
34 | .name = "max77693-charger", | |
35 | .of_compatible = "maxim,max77693-charger", | |
36 | }, | |
4589515a MP |
37 | { |
38 | .name = "max77693-muic", | |
39 | .of_compatible = "maxim,max77693-muic", | |
40 | }, | |
d1bafd78 JK |
41 | { |
42 | .name = "max77693-haptic", | |
43 | .of_compatible = "maxim,max77693-haptic", | |
44 | }, | |
a0bc6072 | 45 | { |
224995d7 JA |
46 | .name = "max77693-led", |
47 | .of_compatible = "maxim,max77693-led", | |
a0bc6072 | 48 | }, |
83871c00 CC |
49 | }; |
50 | ||
83871c00 CC |
51 | static const struct regmap_config max77693_regmap_config = { |
52 | .reg_bits = 8, | |
53 | .val_bits = 8, | |
54 | .max_register = MAX77693_PMIC_REG_END, | |
55 | }; | |
56 | ||
342d669c RB |
57 | static const struct regmap_irq max77693_led_irqs[] = { |
58 | { .mask = LED_IRQ_FLED2_OPEN, }, | |
59 | { .mask = LED_IRQ_FLED2_SHORT, }, | |
60 | { .mask = LED_IRQ_FLED1_OPEN, }, | |
61 | { .mask = LED_IRQ_FLED1_SHORT, }, | |
62 | { .mask = LED_IRQ_MAX_FLASH, }, | |
63 | }; | |
64 | ||
65 | static const struct regmap_irq_chip max77693_led_irq_chip = { | |
66 | .name = "max77693-led", | |
67 | .status_base = MAX77693_LED_REG_FLASH_INT, | |
68 | .mask_base = MAX77693_LED_REG_FLASH_INT_MASK, | |
342d669c RB |
69 | .num_regs = 1, |
70 | .irqs = max77693_led_irqs, | |
71 | .num_irqs = ARRAY_SIZE(max77693_led_irqs), | |
72 | }; | |
73 | ||
74 | static const struct regmap_irq max77693_topsys_irqs[] = { | |
75 | { .mask = TOPSYS_IRQ_T120C_INT, }, | |
76 | { .mask = TOPSYS_IRQ_T140C_INT, }, | |
77 | { .mask = TOPSYS_IRQ_LOWSYS_INT, }, | |
78 | }; | |
79 | ||
80 | static const struct regmap_irq_chip max77693_topsys_irq_chip = { | |
81 | .name = "max77693-topsys", | |
82 | .status_base = MAX77693_PMIC_REG_TOPSYS_INT, | |
83 | .mask_base = MAX77693_PMIC_REG_TOPSYS_INT_MASK, | |
342d669c RB |
84 | .num_regs = 1, |
85 | .irqs = max77693_topsys_irqs, | |
86 | .num_irqs = ARRAY_SIZE(max77693_topsys_irqs), | |
87 | }; | |
88 | ||
89 | static const struct regmap_irq max77693_charger_irqs[] = { | |
90 | { .mask = CHG_IRQ_BYP_I, }, | |
91 | { .mask = CHG_IRQ_THM_I, }, | |
92 | { .mask = CHG_IRQ_BAT_I, }, | |
93 | { .mask = CHG_IRQ_CHG_I, }, | |
94 | { .mask = CHG_IRQ_CHGIN_I, }, | |
95 | }; | |
96 | ||
97 | static const struct regmap_irq_chip max77693_charger_irq_chip = { | |
98 | .name = "max77693-charger", | |
99 | .status_base = MAX77693_CHG_REG_CHG_INT, | |
100 | .mask_base = MAX77693_CHG_REG_CHG_INT_MASK, | |
342d669c RB |
101 | .num_regs = 1, |
102 | .irqs = max77693_charger_irqs, | |
103 | .num_irqs = ARRAY_SIZE(max77693_charger_irqs), | |
104 | }; | |
105 | ||
75ad1327 KK |
106 | static const struct regmap_config max77693_regmap_muic_config = { |
107 | .reg_bits = 8, | |
108 | .val_bits = 8, | |
109 | .max_register = MAX77693_MUIC_REG_END, | |
110 | }; | |
111 | ||
342d669c RB |
112 | static const struct regmap_irq max77693_muic_irqs[] = { |
113 | { .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC, }, | |
114 | { .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_LOW, }, | |
115 | { .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC_ERR, }, | |
116 | { .reg_offset = 0, .mask = MUIC_IRQ_INT1_ADC1K, }, | |
117 | ||
118 | { .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGTYP, }, | |
119 | { .reg_offset = 1, .mask = MUIC_IRQ_INT2_CHGDETREUN, }, | |
120 | { .reg_offset = 1, .mask = MUIC_IRQ_INT2_DCDTMR, }, | |
121 | { .reg_offset = 1, .mask = MUIC_IRQ_INT2_DXOVP, }, | |
122 | { .reg_offset = 1, .mask = MUIC_IRQ_INT2_VBVOLT, }, | |
123 | { .reg_offset = 1, .mask = MUIC_IRQ_INT2_VIDRM, }, | |
124 | ||
125 | { .reg_offset = 2, .mask = MUIC_IRQ_INT3_EOC, }, | |
126 | { .reg_offset = 2, .mask = MUIC_IRQ_INT3_CGMBC, }, | |
127 | { .reg_offset = 2, .mask = MUIC_IRQ_INT3_OVP, }, | |
128 | { .reg_offset = 2, .mask = MUIC_IRQ_INT3_MBCCHG_ERR, }, | |
129 | { .reg_offset = 2, .mask = MUIC_IRQ_INT3_CHG_ENABLED, }, | |
130 | { .reg_offset = 2, .mask = MUIC_IRQ_INT3_BAT_DET, }, | |
131 | }; | |
132 | ||
133 | static const struct regmap_irq_chip max77693_muic_irq_chip = { | |
134 | .name = "max77693-muic", | |
135 | .status_base = MAX77693_MUIC_REG_INT1, | |
a5ae0a0c | 136 | .unmask_base = MAX77693_MUIC_REG_INTMASK1, |
342d669c RB |
137 | .num_regs = 3, |
138 | .irqs = max77693_muic_irqs, | |
139 | .num_irqs = ARRAY_SIZE(max77693_muic_irqs), | |
140 | }; | |
141 | ||
efbf4922 JK |
142 | static const struct regmap_config max77693_regmap_haptic_config = { |
143 | .reg_bits = 8, | |
144 | .val_bits = 8, | |
145 | .max_register = MAX77693_HAPTIC_REG_END, | |
146 | }; | |
147 | ||
317018e5 | 148 | static int max77693_i2c_probe(struct i2c_client *i2c) |
83871c00 | 149 | { |
317018e5 | 150 | const struct i2c_device_id *id = i2c_client_get_device_id(i2c); |
83871c00 | 151 | struct max77693_dev *max77693; |
d0540f91 | 152 | unsigned int reg_data; |
83871c00 CC |
153 | int ret = 0; |
154 | ||
155 | max77693 = devm_kzalloc(&i2c->dev, | |
156 | sizeof(struct max77693_dev), GFP_KERNEL); | |
157 | if (max77693 == NULL) | |
158 | return -ENOMEM; | |
159 | ||
83871c00 CC |
160 | i2c_set_clientdata(i2c, max77693); |
161 | max77693->dev = &i2c->dev; | |
162 | max77693->i2c = i2c; | |
163 | max77693->irq = i2c->irq; | |
164 | max77693->type = id->driver_data; | |
165 | ||
2429d863 AL |
166 | max77693->regmap = devm_regmap_init_i2c(i2c, &max77693_regmap_config); |
167 | if (IS_ERR(max77693->regmap)) { | |
168 | ret = PTR_ERR(max77693->regmap); | |
169 | dev_err(max77693->dev, "failed to allocate register map: %d\n", | |
170 | ret); | |
171 | return ret; | |
172 | } | |
83871c00 | 173 | |
d0540f91 | 174 | ret = regmap_read(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2, |
2429d863 AL |
175 | ®_data); |
176 | if (ret < 0) { | |
83871c00 | 177 | dev_err(max77693->dev, "device not found on this channel\n"); |
2429d863 | 178 | return ret; |
83871c00 CC |
179 | } else |
180 | dev_info(max77693->dev, "device ID: 0x%x\n", reg_data); | |
181 | ||
ad28edcb WS |
182 | max77693->i2c_muic = i2c_new_dummy_device(i2c->adapter, I2C_ADDR_MUIC); |
183 | if (IS_ERR(max77693->i2c_muic)) { | |
ad09dd6a | 184 | dev_err(max77693->dev, "Failed to allocate I2C device for MUIC\n"); |
ad28edcb | 185 | return PTR_ERR(max77693->i2c_muic); |
ad09dd6a | 186 | } |
61b305cd | 187 | i2c_set_clientdata(max77693->i2c_muic, max77693); |
83871c00 | 188 | |
ad28edcb WS |
189 | max77693->i2c_haptic = i2c_new_dummy_device(i2c->adapter, I2C_ADDR_HAPTIC); |
190 | if (IS_ERR(max77693->i2c_haptic)) { | |
ad09dd6a | 191 | dev_err(max77693->dev, "Failed to allocate I2C device for Haptic\n"); |
ad28edcb | 192 | ret = PTR_ERR(max77693->i2c_haptic); |
ad09dd6a KK |
193 | goto err_i2c_haptic; |
194 | } | |
61b305cd | 195 | i2c_set_clientdata(max77693->i2c_haptic, max77693); |
83871c00 | 196 | |
61b305cd | 197 | max77693->regmap_haptic = devm_regmap_init_i2c(max77693->i2c_haptic, |
efbf4922 JK |
198 | &max77693_regmap_haptic_config); |
199 | if (IS_ERR(max77693->regmap_haptic)) { | |
200 | ret = PTR_ERR(max77693->regmap_haptic); | |
201 | dev_err(max77693->dev, | |
202 | "failed to initialize haptic register map: %d\n", ret); | |
203 | goto err_regmap; | |
204 | } | |
205 | ||
b186b124 CC |
206 | /* |
207 | * Initialize register map for MUIC device because use regmap-muic | |
208 | * instance of MUIC device when irq of max77693 is initialized | |
209 | * before call max77693-muic probe() function. | |
210 | */ | |
61b305cd | 211 | max77693->regmap_muic = devm_regmap_init_i2c(max77693->i2c_muic, |
75ad1327 | 212 | &max77693_regmap_muic_config); |
b186b124 CC |
213 | if (IS_ERR(max77693->regmap_muic)) { |
214 | ret = PTR_ERR(max77693->regmap_muic); | |
215 | dev_err(max77693->dev, | |
216 | "failed to allocate register map: %d\n", ret); | |
efbf4922 | 217 | goto err_regmap; |
b186b124 CC |
218 | } |
219 | ||
342d669c | 220 | ret = regmap_add_irq_chip(max77693->regmap, max77693->irq, |
f5f082eb | 221 | IRQF_ONESHOT | IRQF_SHARED, 0, |
342d669c RB |
222 | &max77693_led_irq_chip, |
223 | &max77693->irq_data_led); | |
224 | if (ret) { | |
225 | dev_err(max77693->dev, "failed to add irq chip: %d\n", ret); | |
efbf4922 | 226 | goto err_regmap; |
342d669c RB |
227 | } |
228 | ||
229 | ret = regmap_add_irq_chip(max77693->regmap, max77693->irq, | |
f5f082eb | 230 | IRQF_ONESHOT | IRQF_SHARED, 0, |
342d669c RB |
231 | &max77693_topsys_irq_chip, |
232 | &max77693->irq_data_topsys); | |
233 | if (ret) { | |
234 | dev_err(max77693->dev, "failed to add irq chip: %d\n", ret); | |
235 | goto err_irq_topsys; | |
236 | } | |
237 | ||
238 | ret = regmap_add_irq_chip(max77693->regmap, max77693->irq, | |
f5f082eb | 239 | IRQF_ONESHOT | IRQF_SHARED, 0, |
342d669c | 240 | &max77693_charger_irq_chip, |
61b305cd | 241 | &max77693->irq_data_chg); |
342d669c RB |
242 | if (ret) { |
243 | dev_err(max77693->dev, "failed to add irq chip: %d\n", ret); | |
244 | goto err_irq_charger; | |
245 | } | |
246 | ||
43fc9396 | 247 | ret = regmap_add_irq_chip(max77693->regmap_muic, max77693->irq, |
f5f082eb | 248 | IRQF_ONESHOT | IRQF_SHARED, 0, |
342d669c RB |
249 | &max77693_muic_irq_chip, |
250 | &max77693->irq_data_muic); | |
251 | if (ret) { | |
252 | dev_err(max77693->dev, "failed to add irq chip: %d\n", ret); | |
253 | goto err_irq_muic; | |
254 | } | |
6592ebb3 | 255 | |
c0acb814 KK |
256 | /* Unmask interrupts from all blocks in interrupt source register */ |
257 | ret = regmap_update_bits(max77693->regmap, | |
258 | MAX77693_PMIC_REG_INTSRC_MASK, | |
259 | SRC_IRQ_ALL, (unsigned int)~SRC_IRQ_ALL); | |
260 | if (ret < 0) { | |
261 | dev_err(max77693->dev, | |
262 | "Could not unmask interrupts in INTSRC: %d\n", | |
263 | ret); | |
264 | goto err_intsrc; | |
265 | } | |
266 | ||
83871c00 CC |
267 | pm_runtime_set_active(max77693->dev); |
268 | ||
269 | ret = mfd_add_devices(max77693->dev, -1, max77693_devs, | |
0848c94f | 270 | ARRAY_SIZE(max77693_devs), NULL, 0, NULL); |
83871c00 CC |
271 | if (ret < 0) |
272 | goto err_mfd; | |
273 | ||
274 | return ret; | |
275 | ||
276 | err_mfd: | |
342d669c | 277 | mfd_remove_devices(max77693->dev); |
c0acb814 | 278 | err_intsrc: |
342d669c RB |
279 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic); |
280 | err_irq_muic: | |
61b305cd | 281 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg); |
342d669c RB |
282 | err_irq_charger: |
283 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys); | |
284 | err_irq_topsys: | |
285 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_led); | |
efbf4922 | 286 | err_regmap: |
61b305cd | 287 | i2c_unregister_device(max77693->i2c_haptic); |
ad09dd6a | 288 | err_i2c_haptic: |
61b305cd | 289 | i2c_unregister_device(max77693->i2c_muic); |
83871c00 CC |
290 | return ret; |
291 | } | |
292 | ||
ed5c2f5f | 293 | static void max77693_i2c_remove(struct i2c_client *i2c) |
83871c00 CC |
294 | { |
295 | struct max77693_dev *max77693 = i2c_get_clientdata(i2c); | |
296 | ||
297 | mfd_remove_devices(max77693->dev); | |
342d669c RB |
298 | |
299 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_muic); | |
61b305cd | 300 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_chg); |
342d669c RB |
301 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_topsys); |
302 | regmap_del_irq_chip(max77693->irq, max77693->irq_data_led); | |
303 | ||
61b305cd KK |
304 | i2c_unregister_device(max77693->i2c_muic); |
305 | i2c_unregister_device(max77693->i2c_haptic); | |
83871c00 CC |
306 | } |
307 | ||
308 | static const struct i2c_device_id max77693_i2c_id[] = { | |
309 | { "max77693", TYPE_MAX77693 }, | |
310 | { } | |
311 | }; | |
312 | MODULE_DEVICE_TABLE(i2c, max77693_i2c_id); | |
313 | ||
6592ebb3 CC |
314 | static int max77693_suspend(struct device *dev) |
315 | { | |
1b5420e1 | 316 | struct i2c_client *i2c = to_i2c_client(dev); |
6592ebb3 CC |
317 | struct max77693_dev *max77693 = i2c_get_clientdata(i2c); |
318 | ||
342d669c RB |
319 | if (device_may_wakeup(dev)) { |
320 | enable_irq_wake(max77693->irq); | |
321 | disable_irq(max77693->irq); | |
322 | } | |
323 | ||
6592ebb3 CC |
324 | return 0; |
325 | } | |
326 | ||
327 | static int max77693_resume(struct device *dev) | |
328 | { | |
1b5420e1 | 329 | struct i2c_client *i2c = to_i2c_client(dev); |
6592ebb3 CC |
330 | struct max77693_dev *max77693 = i2c_get_clientdata(i2c); |
331 | ||
342d669c RB |
332 | if (device_may_wakeup(dev)) { |
333 | disable_irq_wake(max77693->irq); | |
334 | enable_irq(max77693->irq); | |
335 | } | |
336 | ||
337 | return 0; | |
6592ebb3 CC |
338 | } |
339 | ||
12477a32 | 340 | static const struct dev_pm_ops max77693_pm = { |
6592ebb3 CC |
341 | .suspend = max77693_suspend, |
342 | .resume = max77693_resume, | |
343 | }; | |
344 | ||
4657185c | 345 | #ifdef CONFIG_OF |
5ce9a55b | 346 | static const struct of_device_id max77693_dt_match[] = { |
4657185c AH |
347 | { .compatible = "maxim,max77693" }, |
348 | {}, | |
349 | }; | |
073d4aca | 350 | MODULE_DEVICE_TABLE(of, max77693_dt_match); |
4657185c AH |
351 | #endif |
352 | ||
83871c00 CC |
353 | static struct i2c_driver max77693_i2c_driver = { |
354 | .driver = { | |
355 | .name = "max77693", | |
6592ebb3 | 356 | .pm = &max77693_pm, |
4657185c | 357 | .of_match_table = of_match_ptr(max77693_dt_match), |
83871c00 | 358 | }, |
317018e5 | 359 | .probe_new = max77693_i2c_probe, |
83871c00 CC |
360 | .remove = max77693_i2c_remove, |
361 | .id_table = max77693_i2c_id, | |
362 | }; | |
363 | ||
073d4aca | 364 | module_i2c_driver(max77693_i2c_driver); |
83871c00 CC |
365 | |
366 | MODULE_DESCRIPTION("MAXIM 77693 multi-function core driver"); | |
367 | MODULE_AUTHOR("SangYoung, Son <hello.son@samsung.com>"); | |
368 | MODULE_LICENSE("GPL"); |