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Merge tag '6.10-rc6-smb3-server-fixes' of git://git.samba.org/ksmbd
[linux.git] / drivers / regulator / max77802-regulator.c
blob69eb6abd255148af91f78506d0e918eaf74fbff6
1 // SPDX-License-Identifier: GPL-2.0+
2 //
3 // max77802.c - Regulator driver for the Maxim 77802
4 //
5 // Copyright (C) 2013-2014 Google, Inc
6 // Simon Glass <sjg@chromium.org>
7 //
8 // Copyright (C) 2012 Samsung Electronics
9 // Chiwoong Byun <woong.byun@samsung.com>
10 // Jonghwa Lee <jonghwa3.lee@samsung.com>
11 //
12 // This driver is based on max8997.c
13
14 #include <linux/kernel.h>
15 #include <linux/bug.h>
16 #include <linux/err.h>
17 #include <linux/slab.h>
18 #include <linux/module.h>
19 #include <linux/platform_device.h>
20 #include <linux/regulator/driver.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/regulator/of_regulator.h>
23 #include <linux/mfd/max77686.h>
24 #include <linux/mfd/max77686-private.h>
25 #include <dt-bindings/regulator/maxim,max77802.h>
26
27 /* Default ramp delay in case it is not manually set */
28 #define MAX77802_RAMP_DELAY 100000 /* uV/us */
29
30 #define MAX77802_OPMODE_SHIFT_LDO 6
31 #define MAX77802_OPMODE_BUCK234_SHIFT 4
32 #define MAX77802_OPMODE_MASK 0x3
33
34 #define MAX77802_VSEL_MASK 0x3F
35 #define MAX77802_DVS_VSEL_MASK 0xFF
36
37 #define MAX77802_RAMP_RATE_MASK_2BIT 0xC0
38 #define MAX77802_RAMP_RATE_SHIFT_2BIT 6
39 #define MAX77802_RAMP_RATE_MASK_4BIT 0xF0
40 #define MAX77802_RAMP_RATE_SHIFT_4BIT 4
41
42 #define MAX77802_STATUS_OFF 0x0
43 #define MAX77802_OFF_PWRREQ 0x1
44 #define MAX77802_LP_PWRREQ 0x2
45
46 static const unsigned int max77802_buck234_ramp_table[] = {
47 12500,
48 25000,
49 50000,
50 100000,
51 };
52
53 static const unsigned int max77802_buck16_ramp_table[] = {
54 1000, 2000, 3030, 4000,
55 5000, 5880, 7140, 8330,
56 9090, 10000, 11110, 12500,
57 16670, 25000, 50000, 100000,
58 };
59
60 struct max77802_regulator_prv {
61 /* Array indexed by regulator id */
62 unsigned int opmode[MAX77802_REG_MAX];
63 };
64
65 static inline unsigned int max77802_map_mode(unsigned int mode)
66 {
67 return mode == MAX77802_OPMODE_NORMAL ?
68 REGULATOR_MODE_NORMAL : REGULATOR_MODE_STANDBY;
69 }
70
71 static int max77802_get_opmode_shift(int id)
72 {
73 if (id == MAX77802_BUCK1 || (id >= MAX77802_BUCK5 &&
74 id <= MAX77802_BUCK10))
75 return 0;
76
77 if (id >= MAX77802_BUCK2 && id <= MAX77802_BUCK4)
78 return MAX77802_OPMODE_BUCK234_SHIFT;
79
80 if (id >= MAX77802_LDO1 && id <= MAX77802_LDO35)
81 return MAX77802_OPMODE_SHIFT_LDO;
82
83 return -EINVAL;
84 }
85
86 /**
87 * max77802_set_suspend_disable - Disable the regulator during system suspend
88 * @rdev: regulator to mark as disabled
89 *
90 * All regulators expect LDO 1, 3, 20 and 21 support OFF by PWRREQ.
91 * Configure the regulator so the PMIC will turn it OFF during system suspend.
92 */
93 static int max77802_set_suspend_disable(struct regulator_dev *rdev)
94 {
95 unsigned int val = MAX77802_OFF_PWRREQ;
96 struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
97 unsigned int id = rdev_get_id(rdev);
98 int shift = max77802_get_opmode_shift(id);
99
100 if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))
101 return -EINVAL;
102 max77802->opmode[id] = val;
103 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
104 rdev->desc->enable_mask, val << shift);
105 }
106
107 /*
108 * Some LDOs support Low Power Mode while the system is running.
109 *
110 * LDOs 1, 3, 20, 21.
111 */
112 static int max77802_set_mode(struct regulator_dev *rdev, unsigned int mode)
113 {
114 struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
115 unsigned int id = rdev_get_id(rdev);
116 unsigned int val;
117 int shift = max77802_get_opmode_shift(id);
118
119 switch (mode) {
120 case REGULATOR_MODE_STANDBY:
121 val = MAX77802_OPMODE_LP; /* ON in Low Power Mode */
122 break;
123 case REGULATOR_MODE_NORMAL:
124 val = MAX77802_OPMODE_NORMAL; /* ON in Normal Mode */
125 break;
126 default:
127 dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",
128 rdev->desc->name, mode);
129 return -EINVAL;
130 }
131
132 if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))
133 return -EINVAL;
134
135 max77802->opmode[id] = val;
136 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
137 rdev->desc->enable_mask, val << shift);
138 }
139
140 static unsigned max77802_get_mode(struct regulator_dev *rdev)
141 {
142 struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
143 unsigned int id = rdev_get_id(rdev);
144
145 if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))
146 return -EINVAL;
147 return max77802_map_mode(max77802->opmode[id]);
148 }
149
150 /**
151 * max77802_set_suspend_mode - set regulator opmode when the system is suspended
152 * @rdev: regulator to change mode
153 * @mode: operating mode to be set
154 *
155 * Will set the operating mode for the regulators during system suspend.
156 * This function is valid for the three different enable control logics:
157 *
158 * Enable Control Logic1 by PWRREQ (BUCK 2-4 and LDOs 2, 4-19, 22-35)
159 * Enable Control Logic2 by PWRREQ (LDOs 1, 20, 21)
160 * Enable Control Logic3 by PWRREQ (LDO 3)
161 *
162 * If setting the regulator mode fails, the function only warns but does
163 * not return an error code to avoid the regulator core to stop setting
164 * the operating mode for the remaining regulators.
165 */
166 static int max77802_set_suspend_mode(struct regulator_dev *rdev,
167 unsigned int mode)
168 {
169 struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
170 unsigned int id = rdev_get_id(rdev);
171 unsigned int val;
172 int shift = max77802_get_opmode_shift(id);
173
174 if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))
175 return -EINVAL;
176
177 /*
178 * If the regulator has been disabled for suspend
179 * then is invalid to try setting a suspend mode.
180 */
181 if (max77802->opmode[id] == MAX77802_OFF_PWRREQ) {
182 dev_warn(&rdev->dev, "%s: is disabled, mode: 0x%x not set\n",
183 rdev->desc->name, mode);
184 return 0;
185 }
186
187 switch (mode) {
188 case REGULATOR_MODE_STANDBY:
189 /*
190 * If the regulator opmode is normal then enable
191 * ON in Low Power Mode by PWRREQ. If the mode is
192 * already Low Power then no action is required.
193 */
194 if (max77802->opmode[id] == MAX77802_OPMODE_NORMAL)
195 val = MAX77802_LP_PWRREQ;
196 else
197 return 0;
198 break;
199 case REGULATOR_MODE_NORMAL:
200 /*
201 * If the regulator operating mode is Low Power then
202 * normal is not a valid opmode in suspend. If the
203 * mode is already normal then no action is required.
204 */
205 if (max77802->opmode[id] == MAX77802_OPMODE_LP)
206 dev_warn(&rdev->dev, "%s: in Low Power: 0x%x invalid\n",
207 rdev->desc->name, mode);
208 return 0;
209 default:
210 dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n",
211 rdev->desc->name, mode);
212 return -EINVAL;
213 }
214
215 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
216 rdev->desc->enable_mask, val << shift);
217 }
218
219 static int max77802_enable(struct regulator_dev *rdev)
220 {
221 struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev);
222 unsigned int id = rdev_get_id(rdev);
223 int shift = max77802_get_opmode_shift(id);
224
225 if (WARN_ON_ONCE(id >= ARRAY_SIZE(max77802->opmode)))
226 return -EINVAL;
227 if (max77802->opmode[id] == MAX77802_OFF_PWRREQ)
228 max77802->opmode[id] = MAX77802_OPMODE_NORMAL;
229
230 return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg,
231 rdev->desc->enable_mask,
232 max77802->opmode[id] << shift);
233 }
234
235 /*
236 * LDOs 2, 4-19, 22-35
237 */
238 static const struct regulator_ops max77802_ldo_ops_logic1 = {
239 .list_voltage = regulator_list_voltage_linear,
240 .map_voltage = regulator_map_voltage_linear,
241 .is_enabled = regulator_is_enabled_regmap,
242 .enable = max77802_enable,
243 .disable = regulator_disable_regmap,
244 .get_voltage_sel = regulator_get_voltage_sel_regmap,
245 .set_voltage_sel = regulator_set_voltage_sel_regmap,
246 .set_voltage_time_sel = regulator_set_voltage_time_sel,
247 .set_suspend_disable = max77802_set_suspend_disable,
248 .set_suspend_mode = max77802_set_suspend_mode,
249 };
250
251 /*
252 * LDOs 1, 20, 21, 3
253 */
254 static const struct regulator_ops max77802_ldo_ops_logic2 = {
255 .list_voltage = regulator_list_voltage_linear,
256 .map_voltage = regulator_map_voltage_linear,
257 .is_enabled = regulator_is_enabled_regmap,
258 .enable = max77802_enable,
259 .disable = regulator_disable_regmap,
260 .get_voltage_sel = regulator_get_voltage_sel_regmap,
261 .set_voltage_sel = regulator_set_voltage_sel_regmap,
262 .set_voltage_time_sel = regulator_set_voltage_time_sel,
263 .set_mode = max77802_set_mode,
264 .get_mode = max77802_get_mode,
265 .set_suspend_mode = max77802_set_suspend_mode,
266 };
267
268 /* BUCKS 1, 6 */
269 static const struct regulator_ops max77802_buck_16_dvs_ops = {
270 .list_voltage = regulator_list_voltage_linear,
271 .map_voltage = regulator_map_voltage_linear,
272 .is_enabled = regulator_is_enabled_regmap,
273 .enable = max77802_enable,
274 .disable = regulator_disable_regmap,
275 .get_voltage_sel = regulator_get_voltage_sel_regmap,
276 .set_voltage_sel = regulator_set_voltage_sel_regmap,
277 .set_voltage_time_sel = regulator_set_voltage_time_sel,
278 .set_ramp_delay = regulator_set_ramp_delay_regmap,
279 .set_suspend_disable = max77802_set_suspend_disable,
280 };
281
282 /* BUCKs 2-4 */
283 static const struct regulator_ops max77802_buck_234_ops = {
284 .list_voltage = regulator_list_voltage_linear,
285 .map_voltage = regulator_map_voltage_linear,
286 .is_enabled = regulator_is_enabled_regmap,
287 .enable = max77802_enable,
288 .disable = regulator_disable_regmap,
289 .get_voltage_sel = regulator_get_voltage_sel_regmap,
290 .set_voltage_sel = regulator_set_voltage_sel_regmap,
291 .set_voltage_time_sel = regulator_set_voltage_time_sel,
292 .set_ramp_delay = regulator_set_ramp_delay_regmap,
293 .set_suspend_disable = max77802_set_suspend_disable,
294 .set_suspend_mode = max77802_set_suspend_mode,
295 };
296
297 /* BUCKs 5, 7-10 */
298 static const struct regulator_ops max77802_buck_dvs_ops = {
299 .list_voltage = regulator_list_voltage_linear,
300 .map_voltage = regulator_map_voltage_linear,
301 .is_enabled = regulator_is_enabled_regmap,
302 .enable = max77802_enable,
303 .disable = regulator_disable_regmap,
304 .get_voltage_sel = regulator_get_voltage_sel_regmap,
305 .set_voltage_sel = regulator_set_voltage_sel_regmap,
306 .set_voltage_time_sel = regulator_set_voltage_time_sel,
307 .set_suspend_disable = max77802_set_suspend_disable,
308 };
309
310 /* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */
311 #define regulator_77802_desc_p_ldo(num, supply, log) { \
312 .name = "LDO"#num, \
313 .of_match = of_match_ptr("LDO"#num), \
314 .regulators_node = of_match_ptr("regulators"), \
315 .id = MAX77802_LDO##num, \
316 .supply_name = "inl"#supply, \
317 .ops = &max77802_ldo_ops_logic##log, \
318 .type = REGULATOR_VOLTAGE, \
319 .owner = THIS_MODULE, \
320 .min_uV = 800000, \
321 .uV_step = 50000, \
322 .ramp_delay = MAX77802_RAMP_DELAY, \
323 .n_voltages = 1 << 6, \
324 .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
325 .vsel_mask = MAX77802_VSEL_MASK, \
326 .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
327 .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \
328 .of_map_mode = max77802_map_mode, \
329 }
330
331 /* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */
332 #define regulator_77802_desc_n_ldo(num, supply, log) { \
333 .name = "LDO"#num, \
334 .of_match = of_match_ptr("LDO"#num), \
335 .regulators_node = of_match_ptr("regulators"), \
336 .id = MAX77802_LDO##num, \
337 .supply_name = "inl"#supply, \
338 .ops = &max77802_ldo_ops_logic##log, \
339 .type = REGULATOR_VOLTAGE, \
340 .owner = THIS_MODULE, \
341 .min_uV = 800000, \
342 .uV_step = 25000, \
343 .ramp_delay = MAX77802_RAMP_DELAY, \
344 .n_voltages = 1 << 6, \
345 .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
346 .vsel_mask = MAX77802_VSEL_MASK, \
347 .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \
348 .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \
349 .of_map_mode = max77802_map_mode, \
350 }
351
352 /* BUCKs 1, 6 */
353 #define regulator_77802_desc_16_buck(num) { \
354 .name = "BUCK"#num, \
355 .of_match = of_match_ptr("BUCK"#num), \
356 .regulators_node = of_match_ptr("regulators"), \
357 .id = MAX77802_BUCK##num, \
358 .supply_name = "inb"#num, \
359 .ops = &max77802_buck_16_dvs_ops, \
360 .type = REGULATOR_VOLTAGE, \
361 .owner = THIS_MODULE, \
362 .min_uV = 612500, \
363 .uV_step = 6250, \
364 .ramp_delay = MAX77802_RAMP_DELAY, \
365 .n_voltages = 1 << 8, \
366 .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \
367 .vsel_mask = MAX77802_DVS_VSEL_MASK, \
368 .enable_reg = MAX77802_REG_BUCK ## num ## CTRL, \
369 .enable_mask = MAX77802_OPMODE_MASK, \
370 .ramp_reg = MAX77802_REG_BUCK ## num ## CTRL, \
371 .ramp_mask = MAX77802_RAMP_RATE_MASK_4BIT, \
372 .ramp_delay_table = max77802_buck16_ramp_table, \
373 .n_ramp_values = ARRAY_SIZE(max77802_buck16_ramp_table), \
374 .of_map_mode = max77802_map_mode, \
375 }
376
377 /* BUCKS 2-4 */
378 #define regulator_77802_desc_234_buck(num) { \
379 .name = "BUCK"#num, \
380 .of_match = of_match_ptr("BUCK"#num), \
381 .regulators_node = of_match_ptr("regulators"), \
382 .id = MAX77802_BUCK##num, \
383 .supply_name = "inb"#num, \
384 .ops = &max77802_buck_234_ops, \
385 .type = REGULATOR_VOLTAGE, \
386 .owner = THIS_MODULE, \
387 .min_uV = 600000, \
388 .uV_step = 6250, \
389 .ramp_delay = MAX77802_RAMP_DELAY, \
390 .n_voltages = 0x91, \
391 .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \
392 .vsel_mask = MAX77802_DVS_VSEL_MASK, \
393 .enable_reg = MAX77802_REG_BUCK ## num ## CTRL1, \
394 .enable_mask = MAX77802_OPMODE_MASK << \
395 MAX77802_OPMODE_BUCK234_SHIFT, \
396 .ramp_reg = MAX77802_REG_BUCK ## num ## CTRL1, \
397 .ramp_mask = MAX77802_RAMP_RATE_MASK_2BIT, \
398 .ramp_delay_table = max77802_buck234_ramp_table, \
399 .n_ramp_values = ARRAY_SIZE(max77802_buck234_ramp_table), \
400 .of_map_mode = max77802_map_mode, \
401 }
402
403 /* BUCK 5 */
404 #define regulator_77802_desc_buck5(num) { \
405 .name = "BUCK"#num, \
406 .of_match = of_match_ptr("BUCK"#num), \
407 .regulators_node = of_match_ptr("regulators"), \
408 .id = MAX77802_BUCK##num, \
409 .supply_name = "inb"#num, \
410 .ops = &max77802_buck_dvs_ops, \
411 .type = REGULATOR_VOLTAGE, \
412 .owner = THIS_MODULE, \
413 .min_uV = 750000, \
414 .uV_step = 50000, \
415 .ramp_delay = MAX77802_RAMP_DELAY, \
416 .n_voltages = 1 << 6, \
417 .vsel_reg = MAX77802_REG_BUCK5OUT, \
418 .vsel_mask = MAX77802_VSEL_MASK, \
419 .enable_reg = MAX77802_REG_BUCK5CTRL, \
420 .enable_mask = MAX77802_OPMODE_MASK, \
421 .of_map_mode = max77802_map_mode, \
422 }
423
424 /* BUCKs 7-10 */
425 #define regulator_77802_desc_buck7_10(num) { \
426 .name = "BUCK"#num, \
427 .of_match = of_match_ptr("BUCK"#num), \
428 .regulators_node = of_match_ptr("regulators"), \
429 .id = MAX77802_BUCK##num, \
430 .supply_name = "inb"#num, \
431 .ops = &max77802_buck_dvs_ops, \
432 .type = REGULATOR_VOLTAGE, \
433 .owner = THIS_MODULE, \
434 .min_uV = 750000, \
435 .uV_step = 50000, \
436 .ramp_delay = MAX77802_RAMP_DELAY, \
437 .n_voltages = 1 << 6, \
438 .vsel_reg = MAX77802_REG_BUCK7OUT + (num - 7) * 3, \
439 .vsel_mask = MAX77802_VSEL_MASK, \
440 .enable_reg = MAX77802_REG_BUCK7CTRL + (num - 7) * 3, \
441 .enable_mask = MAX77802_OPMODE_MASK, \
442 .of_map_mode = max77802_map_mode, \
443 }
444
445 static const struct regulator_desc regulators[] = {
446 regulator_77802_desc_16_buck(1),
447 regulator_77802_desc_234_buck(2),
448 regulator_77802_desc_234_buck(3),
449 regulator_77802_desc_234_buck(4),
450 regulator_77802_desc_buck5(5),
451 regulator_77802_desc_16_buck(6),
452 regulator_77802_desc_buck7_10(7),
453 regulator_77802_desc_buck7_10(8),
454 regulator_77802_desc_buck7_10(9),
455 regulator_77802_desc_buck7_10(10),
456 regulator_77802_desc_n_ldo(1, 10, 2),
457 regulator_77802_desc_n_ldo(2, 10, 1),
458 regulator_77802_desc_p_ldo(3, 3, 2),
459 regulator_77802_desc_p_ldo(4, 6, 1),
460 regulator_77802_desc_p_ldo(5, 3, 1),
461 regulator_77802_desc_p_ldo(6, 3, 1),
462 regulator_77802_desc_p_ldo(7, 3, 1),
463 regulator_77802_desc_n_ldo(8, 1, 1),
464 regulator_77802_desc_p_ldo(9, 5, 1),
465 regulator_77802_desc_p_ldo(10, 4, 1),
466 regulator_77802_desc_p_ldo(11, 4, 1),
467 regulator_77802_desc_p_ldo(12, 9, 1),
468 regulator_77802_desc_p_ldo(13, 4, 1),
469 regulator_77802_desc_p_ldo(14, 4, 1),
470 regulator_77802_desc_n_ldo(15, 1, 1),
471 regulator_77802_desc_n_ldo(17, 2, 1),
472 regulator_77802_desc_p_ldo(18, 7, 1),
473 regulator_77802_desc_p_ldo(19, 5, 1),
474 regulator_77802_desc_p_ldo(20, 7, 2),
475 regulator_77802_desc_p_ldo(21, 6, 2),
476 regulator_77802_desc_p_ldo(23, 9, 1),
477 regulator_77802_desc_p_ldo(24, 6, 1),
478 regulator_77802_desc_p_ldo(25, 9, 1),
479 regulator_77802_desc_p_ldo(26, 9, 1),
480 regulator_77802_desc_n_ldo(27, 2, 1),
481 regulator_77802_desc_p_ldo(28, 7, 1),
482 regulator_77802_desc_p_ldo(29, 7, 1),
483 regulator_77802_desc_n_ldo(30, 2, 1),
484 regulator_77802_desc_p_ldo(32, 9, 1),
485 regulator_77802_desc_p_ldo(33, 6, 1),
486 regulator_77802_desc_p_ldo(34, 9, 1),
487 regulator_77802_desc_n_ldo(35, 2, 1),
488 };
489
490 static int max77802_pmic_probe(struct platform_device *pdev)
491 {
492 struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent);
493 struct max77802_regulator_prv *max77802;
494 int i, val;
495 struct regulator_config config = { };
496
497 max77802 = devm_kzalloc(&pdev->dev,
498 sizeof(struct max77802_regulator_prv),
499 GFP_KERNEL);
500 if (!max77802)
501 return -ENOMEM;
502
503 config.dev = iodev->dev;
504 config.regmap = iodev->regmap;
505 config.driver_data = max77802;
506 platform_set_drvdata(pdev, max77802);
507
508 for (i = 0; i < MAX77802_REG_MAX; i++) {
509 struct regulator_dev *rdev;
510 unsigned int id = regulators[i].id;
511 int shift = max77802_get_opmode_shift(id);
512 int ret;
513
514 ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val);
515 if (ret < 0) {
516 dev_warn(&pdev->dev,
517 "cannot read current mode for %d\n", i);
518 val = MAX77802_OPMODE_NORMAL;
519 } else {
520 val = val >> shift & MAX77802_OPMODE_MASK;
521 }
522
523 /*
524 * If the regulator is disabled and the system warm rebooted,
525 * the hardware reports OFF as the regulator operating mode.
526 * Default to operating mode NORMAL in that case.
527 */
528 if (id < ARRAY_SIZE(max77802->opmode)) {
529 if (val == MAX77802_STATUS_OFF)
530 max77802->opmode[id] = MAX77802_OPMODE_NORMAL;
531 else
532 max77802->opmode[id] = val;
533 }
534
535 rdev = devm_regulator_register(&pdev->dev,
536 &regulators[i], &config);
537 if (IS_ERR(rdev)) {
538 ret = PTR_ERR(rdev);
539 dev_err(&pdev->dev,
540 "regulator init failed for %d: %d\n", i, ret);
541 return ret;
542 }
543 }
544
545 return 0;
546 }
547
548 static const struct platform_device_id max77802_pmic_id[] = {
549 {"max77802-pmic", 0},
550 { },
551 };
552 MODULE_DEVICE_TABLE(platform, max77802_pmic_id);
553
554 static struct platform_driver max77802_pmic_driver = {
555 .driver = {
556 .name = "max77802-pmic",
557 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
558 },
559 .probe = max77802_pmic_probe,
560 .id_table = max77802_pmic_id,
561 };
562
563 module_platform_driver(max77802_pmic_driver);
564
565 MODULE_DESCRIPTION("MAXIM 77802 Regulator Driver");
566 MODULE_AUTHOR("Simon Glass <sjg@chromium.org>");
567 MODULE_LICENSE("GPL");
Linux Kernel