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522498f8 MV |
1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | // Copyright (C) 2019 ROHM Semiconductors | |
3 | // bd71828-regulator.c ROHM BD71828GW-DS1 regulator driver | |
4 | // | |
5 | ||
6 | #include <linux/delay.h> | |
7 | #include <linux/err.h> | |
8 | #include <linux/gpio.h> | |
9 | #include <linux/interrupt.h> | |
10 | #include <linux/kernel.h> | |
11 | #include <linux/mfd/rohm-bd71828.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/of.h> | |
14 | #include <linux/platform_device.h> | |
15 | #include <linux/regmap.h> | |
16 | #include <linux/regulator/driver.h> | |
17 | #include <linux/regulator/machine.h> | |
18 | #include <linux/regulator/of_regulator.h> | |
19 | ||
20 | struct reg_init { | |
21 | unsigned int reg; | |
22 | unsigned int mask; | |
23 | unsigned int val; | |
24 | }; | |
25 | struct bd71828_regulator_data { | |
26 | struct regulator_desc desc; | |
27 | const struct rohm_dvs_config dvs; | |
28 | const struct reg_init *reg_inits; | |
29 | int reg_init_amnt; | |
30 | }; | |
31 | ||
32 | static const struct reg_init buck1_inits[] = { | |
33 | /* | |
34 | * DVS Buck voltages can be changed by register values or via GPIO. | |
35 | * Use register accesses by default. | |
36 | */ | |
37 | { | |
38 | .reg = BD71828_REG_PS_CTRL_1, | |
39 | .mask = BD71828_MASK_DVS_BUCK1_CTRL, | |
40 | .val = BD71828_DVS_BUCK1_CTRL_I2C, | |
41 | }, | |
42 | }; | |
43 | ||
44 | static const struct reg_init buck2_inits[] = { | |
45 | { | |
46 | .reg = BD71828_REG_PS_CTRL_1, | |
47 | .mask = BD71828_MASK_DVS_BUCK2_CTRL, | |
48 | .val = BD71828_DVS_BUCK2_CTRL_I2C, | |
49 | }, | |
50 | }; | |
51 | ||
52 | static const struct reg_init buck6_inits[] = { | |
53 | { | |
54 | .reg = BD71828_REG_PS_CTRL_1, | |
55 | .mask = BD71828_MASK_DVS_BUCK6_CTRL, | |
56 | .val = BD71828_DVS_BUCK6_CTRL_I2C, | |
57 | }, | |
58 | }; | |
59 | ||
60 | static const struct reg_init buck7_inits[] = { | |
61 | { | |
62 | .reg = BD71828_REG_PS_CTRL_1, | |
63 | .mask = BD71828_MASK_DVS_BUCK7_CTRL, | |
64 | .val = BD71828_DVS_BUCK7_CTRL_I2C, | |
65 | }, | |
66 | }; | |
67 | ||
60ab7f41 | 68 | static const struct linear_range bd71828_buck1267_volts[] = { |
522498f8 MV |
69 | REGULATOR_LINEAR_RANGE(500000, 0x00, 0xef, 6250), |
70 | REGULATOR_LINEAR_RANGE(2000000, 0xf0, 0xff, 0), | |
71 | }; | |
72 | ||
60ab7f41 | 73 | static const struct linear_range bd71828_buck3_volts[] = { |
522498f8 MV |
74 | REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x0f, 50000), |
75 | REGULATOR_LINEAR_RANGE(2000000, 0x10, 0x1f, 0), | |
76 | }; | |
77 | ||
60ab7f41 | 78 | static const struct linear_range bd71828_buck4_volts[] = { |
522498f8 MV |
79 | REGULATOR_LINEAR_RANGE(1000000, 0x00, 0x1f, 25000), |
80 | REGULATOR_LINEAR_RANGE(1800000, 0x20, 0x3f, 0), | |
81 | }; | |
82 | ||
60ab7f41 | 83 | static const struct linear_range bd71828_buck5_volts[] = { |
522498f8 MV |
84 | REGULATOR_LINEAR_RANGE(2500000, 0x00, 0x0f, 50000), |
85 | REGULATOR_LINEAR_RANGE(3300000, 0x10, 0x1f, 0), | |
86 | }; | |
87 | ||
60ab7f41 | 88 | static const struct linear_range bd71828_ldo_volts[] = { |
522498f8 MV |
89 | REGULATOR_LINEAR_RANGE(800000, 0x00, 0x31, 50000), |
90 | REGULATOR_LINEAR_RANGE(3300000, 0x32, 0x3f, 0), | |
91 | }; | |
92 | ||
93 | static int bd71828_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) | |
94 | { | |
95 | unsigned int val; | |
96 | ||
97 | switch (ramp_delay) { | |
98 | case 1 ... 2500: | |
99 | val = 0; | |
100 | break; | |
101 | case 2501 ... 5000: | |
102 | val = 1; | |
103 | break; | |
104 | case 5001 ... 10000: | |
105 | val = 2; | |
106 | break; | |
107 | case 10001 ... 20000: | |
108 | val = 3; | |
109 | break; | |
110 | default: | |
111 | val = 3; | |
112 | dev_err(&rdev->dev, | |
113 | "ramp_delay: %d not supported, setting 20mV/uS", | |
114 | ramp_delay); | |
115 | } | |
116 | ||
117 | /* | |
118 | * On BD71828 the ramp delay level control reg is at offset +2 to | |
119 | * enable reg | |
120 | */ | |
121 | return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg + 2, | |
122 | BD71828_MASK_RAMP_DELAY, | |
123 | val << (ffs(BD71828_MASK_RAMP_DELAY) - 1)); | |
124 | } | |
125 | ||
126 | static int buck_set_hw_dvs_levels(struct device_node *np, | |
127 | const struct regulator_desc *desc, | |
128 | struct regulator_config *cfg) | |
129 | { | |
130 | struct bd71828_regulator_data *data; | |
131 | ||
132 | data = container_of(desc, struct bd71828_regulator_data, desc); | |
133 | ||
134 | return rohm_regulator_set_dvs_levels(&data->dvs, np, desc, cfg->regmap); | |
135 | } | |
136 | ||
137 | static int ldo6_parse_dt(struct device_node *np, | |
138 | const struct regulator_desc *desc, | |
139 | struct regulator_config *cfg) | |
140 | { | |
141 | int ret, i; | |
142 | uint32_t uv = 0; | |
143 | unsigned int en; | |
144 | struct regmap *regmap = cfg->regmap; | |
145 | static const char * const props[] = { "rohm,dvs-run-voltage", | |
146 | "rohm,dvs-idle-voltage", | |
147 | "rohm,dvs-suspend-voltage", | |
148 | "rohm,dvs-lpsr-voltage" }; | |
149 | unsigned int mask[] = { BD71828_MASK_RUN_EN, BD71828_MASK_IDLE_EN, | |
150 | BD71828_MASK_SUSP_EN, BD71828_MASK_LPSR_EN }; | |
151 | ||
152 | for (i = 0; i < ARRAY_SIZE(props); i++) { | |
153 | ret = of_property_read_u32(np, props[i], &uv); | |
154 | if (ret) { | |
155 | if (ret != -EINVAL) | |
156 | return ret; | |
157 | continue; | |
158 | } | |
159 | if (uv) | |
160 | en = 0xffffffff; | |
161 | else | |
162 | en = 0; | |
163 | ||
164 | ret = regmap_update_bits(regmap, desc->enable_reg, mask[i], en); | |
165 | if (ret) | |
166 | return ret; | |
167 | } | |
168 | return 0; | |
169 | } | |
170 | ||
171 | static const struct regulator_ops bd71828_buck_ops = { | |
172 | .enable = regulator_enable_regmap, | |
173 | .disable = regulator_disable_regmap, | |
174 | .is_enabled = regulator_is_enabled_regmap, | |
175 | .list_voltage = regulator_list_voltage_linear_range, | |
176 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
177 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
178 | }; | |
179 | ||
180 | static const struct regulator_ops bd71828_dvs_buck_ops = { | |
181 | .enable = regulator_enable_regmap, | |
182 | .disable = regulator_disable_regmap, | |
183 | .is_enabled = regulator_is_enabled_regmap, | |
184 | .list_voltage = regulator_list_voltage_linear_range, | |
185 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
186 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
187 | .set_voltage_time_sel = regulator_set_voltage_time_sel, | |
188 | .set_ramp_delay = bd71828_set_ramp_delay, | |
189 | }; | |
190 | ||
191 | static const struct regulator_ops bd71828_ldo_ops = { | |
192 | .enable = regulator_enable_regmap, | |
193 | .disable = regulator_disable_regmap, | |
194 | .is_enabled = regulator_is_enabled_regmap, | |
195 | .list_voltage = regulator_list_voltage_linear_range, | |
196 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
197 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
198 | }; | |
199 | ||
522498f8 MV |
200 | static const struct regulator_ops bd71828_ldo6_ops = { |
201 | .enable = regulator_enable_regmap, | |
202 | .disable = regulator_disable_regmap, | |
522498f8 MV |
203 | .is_enabled = regulator_is_enabled_regmap, |
204 | }; | |
205 | ||
206 | static const struct bd71828_regulator_data bd71828_rdata[] = { | |
207 | { | |
208 | .desc = { | |
209 | .name = "buck1", | |
210 | .of_match = of_match_ptr("BUCK1"), | |
211 | .regulators_node = of_match_ptr("regulators"), | |
212 | .id = BD71828_BUCK1, | |
213 | .ops = &bd71828_dvs_buck_ops, | |
214 | .type = REGULATOR_VOLTAGE, | |
215 | .linear_ranges = bd71828_buck1267_volts, | |
216 | .n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), | |
217 | .n_voltages = BD71828_BUCK1267_VOLTS, | |
218 | .enable_reg = BD71828_REG_BUCK1_EN, | |
219 | .enable_mask = BD71828_MASK_RUN_EN, | |
220 | .vsel_reg = BD71828_REG_BUCK1_VOLT, | |
221 | .vsel_mask = BD71828_MASK_BUCK1267_VOLT, | |
222 | .owner = THIS_MODULE, | |
223 | .of_parse_cb = buck_set_hw_dvs_levels, | |
224 | }, | |
225 | .dvs = { | |
226 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
227 | ROHM_DVS_LEVEL_SUSPEND | | |
228 | ROHM_DVS_LEVEL_LPSR, | |
229 | .run_reg = BD71828_REG_BUCK1_VOLT, | |
230 | .run_mask = BD71828_MASK_BUCK1267_VOLT, | |
231 | .idle_reg = BD71828_REG_BUCK1_IDLE_VOLT, | |
232 | .idle_mask = BD71828_MASK_BUCK1267_VOLT, | |
233 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
234 | .suspend_reg = BD71828_REG_BUCK1_SUSP_VOLT, | |
235 | .suspend_mask = BD71828_MASK_BUCK1267_VOLT, | |
236 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
237 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
238 | /* | |
239 | * LPSR voltage is same as SUSPEND voltage. Allow | |
240 | * setting it so that regulator can be set enabled at | |
241 | * LPSR state | |
242 | */ | |
243 | .lpsr_reg = BD71828_REG_BUCK1_SUSP_VOLT, | |
244 | .lpsr_mask = BD71828_MASK_BUCK1267_VOLT, | |
245 | }, | |
246 | .reg_inits = buck1_inits, | |
247 | .reg_init_amnt = ARRAY_SIZE(buck1_inits), | |
248 | }, | |
249 | { | |
250 | .desc = { | |
251 | .name = "buck2", | |
252 | .of_match = of_match_ptr("BUCK2"), | |
253 | .regulators_node = of_match_ptr("regulators"), | |
254 | .id = BD71828_BUCK2, | |
255 | .ops = &bd71828_dvs_buck_ops, | |
256 | .type = REGULATOR_VOLTAGE, | |
257 | .linear_ranges = bd71828_buck1267_volts, | |
258 | .n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), | |
259 | .n_voltages = BD71828_BUCK1267_VOLTS, | |
260 | .enable_reg = BD71828_REG_BUCK2_EN, | |
261 | .enable_mask = BD71828_MASK_RUN_EN, | |
262 | .vsel_reg = BD71828_REG_BUCK2_VOLT, | |
263 | .vsel_mask = BD71828_MASK_BUCK1267_VOLT, | |
264 | .owner = THIS_MODULE, | |
265 | .of_parse_cb = buck_set_hw_dvs_levels, | |
266 | }, | |
267 | .dvs = { | |
268 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
269 | ROHM_DVS_LEVEL_SUSPEND | | |
270 | ROHM_DVS_LEVEL_LPSR, | |
271 | .run_reg = BD71828_REG_BUCK2_VOLT, | |
272 | .run_mask = BD71828_MASK_BUCK1267_VOLT, | |
273 | .idle_reg = BD71828_REG_BUCK2_IDLE_VOLT, | |
274 | .idle_mask = BD71828_MASK_BUCK1267_VOLT, | |
275 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
276 | .suspend_reg = BD71828_REG_BUCK2_SUSP_VOLT, | |
277 | .suspend_mask = BD71828_MASK_BUCK1267_VOLT, | |
278 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
279 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
280 | .lpsr_reg = BD71828_REG_BUCK2_SUSP_VOLT, | |
281 | .lpsr_mask = BD71828_MASK_BUCK1267_VOLT, | |
282 | }, | |
283 | .reg_inits = buck2_inits, | |
284 | .reg_init_amnt = ARRAY_SIZE(buck2_inits), | |
285 | }, | |
286 | { | |
287 | .desc = { | |
288 | .name = "buck3", | |
289 | .of_match = of_match_ptr("BUCK3"), | |
290 | .regulators_node = of_match_ptr("regulators"), | |
291 | .id = BD71828_BUCK3, | |
292 | .ops = &bd71828_buck_ops, | |
293 | .type = REGULATOR_VOLTAGE, | |
294 | .linear_ranges = bd71828_buck3_volts, | |
295 | .n_linear_ranges = ARRAY_SIZE(bd71828_buck3_volts), | |
296 | .n_voltages = BD71828_BUCK3_VOLTS, | |
297 | .enable_reg = BD71828_REG_BUCK3_EN, | |
298 | .enable_mask = BD71828_MASK_RUN_EN, | |
299 | .vsel_reg = BD71828_REG_BUCK3_VOLT, | |
300 | .vsel_mask = BD71828_MASK_BUCK3_VOLT, | |
301 | .owner = THIS_MODULE, | |
302 | .of_parse_cb = buck_set_hw_dvs_levels, | |
303 | }, | |
304 | .dvs = { | |
305 | /* | |
306 | * BUCK3 only supports single voltage for all states. | |
307 | * voltage can be individually enabled for each state | |
308 | * though => allow setting all states to support | |
309 | * enabling power rail on different states. | |
310 | */ | |
311 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
312 | ROHM_DVS_LEVEL_SUSPEND | | |
313 | ROHM_DVS_LEVEL_LPSR, | |
314 | .run_reg = BD71828_REG_BUCK3_VOLT, | |
315 | .idle_reg = BD71828_REG_BUCK3_VOLT, | |
316 | .suspend_reg = BD71828_REG_BUCK3_VOLT, | |
317 | .lpsr_reg = BD71828_REG_BUCK3_VOLT, | |
318 | .run_mask = BD71828_MASK_BUCK3_VOLT, | |
319 | .idle_mask = BD71828_MASK_BUCK3_VOLT, | |
320 | .suspend_mask = BD71828_MASK_BUCK3_VOLT, | |
321 | .lpsr_mask = BD71828_MASK_BUCK3_VOLT, | |
322 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
323 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
324 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
325 | }, | |
326 | }, | |
327 | { | |
328 | .desc = { | |
329 | .name = "buck4", | |
330 | .of_match = of_match_ptr("BUCK4"), | |
331 | .regulators_node = of_match_ptr("regulators"), | |
332 | .id = BD71828_BUCK4, | |
333 | .ops = &bd71828_buck_ops, | |
334 | .type = REGULATOR_VOLTAGE, | |
335 | .linear_ranges = bd71828_buck4_volts, | |
336 | .n_linear_ranges = ARRAY_SIZE(bd71828_buck4_volts), | |
337 | .n_voltages = BD71828_BUCK4_VOLTS, | |
338 | .enable_reg = BD71828_REG_BUCK4_EN, | |
339 | .enable_mask = BD71828_MASK_RUN_EN, | |
340 | .vsel_reg = BD71828_REG_BUCK4_VOLT, | |
341 | .vsel_mask = BD71828_MASK_BUCK4_VOLT, | |
342 | .owner = THIS_MODULE, | |
343 | .of_parse_cb = buck_set_hw_dvs_levels, | |
344 | }, | |
345 | .dvs = { | |
346 | /* | |
347 | * BUCK4 only supports single voltage for all states. | |
348 | * voltage can be individually enabled for each state | |
349 | * though => allow setting all states to support | |
350 | * enabling power rail on different states. | |
351 | */ | |
352 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
353 | ROHM_DVS_LEVEL_SUSPEND | | |
354 | ROHM_DVS_LEVEL_LPSR, | |
355 | .run_reg = BD71828_REG_BUCK4_VOLT, | |
356 | .idle_reg = BD71828_REG_BUCK4_VOLT, | |
357 | .suspend_reg = BD71828_REG_BUCK4_VOLT, | |
358 | .lpsr_reg = BD71828_REG_BUCK4_VOLT, | |
359 | .run_mask = BD71828_MASK_BUCK4_VOLT, | |
360 | .idle_mask = BD71828_MASK_BUCK4_VOLT, | |
361 | .suspend_mask = BD71828_MASK_BUCK4_VOLT, | |
362 | .lpsr_mask = BD71828_MASK_BUCK4_VOLT, | |
363 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
364 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
365 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
366 | }, | |
367 | }, | |
368 | { | |
369 | .desc = { | |
370 | .name = "buck5", | |
371 | .of_match = of_match_ptr("BUCK5"), | |
372 | .regulators_node = of_match_ptr("regulators"), | |
373 | .id = BD71828_BUCK5, | |
374 | .ops = &bd71828_buck_ops, | |
375 | .type = REGULATOR_VOLTAGE, | |
376 | .linear_ranges = bd71828_buck5_volts, | |
377 | .n_linear_ranges = ARRAY_SIZE(bd71828_buck5_volts), | |
378 | .n_voltages = BD71828_BUCK5_VOLTS, | |
379 | .enable_reg = BD71828_REG_BUCK5_EN, | |
380 | .enable_mask = BD71828_MASK_RUN_EN, | |
381 | .vsel_reg = BD71828_REG_BUCK5_VOLT, | |
382 | .vsel_mask = BD71828_MASK_BUCK5_VOLT, | |
383 | .owner = THIS_MODULE, | |
384 | .of_parse_cb = buck_set_hw_dvs_levels, | |
385 | }, | |
386 | .dvs = { | |
387 | /* | |
388 | * BUCK5 only supports single voltage for all states. | |
389 | * voltage can be individually enabled for each state | |
390 | * though => allow setting all states to support | |
391 | * enabling power rail on different states. | |
392 | */ | |
393 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
394 | ROHM_DVS_LEVEL_SUSPEND | | |
395 | ROHM_DVS_LEVEL_LPSR, | |
396 | .run_reg = BD71828_REG_BUCK5_VOLT, | |
397 | .idle_reg = BD71828_REG_BUCK5_VOLT, | |
398 | .suspend_reg = BD71828_REG_BUCK5_VOLT, | |
399 | .lpsr_reg = BD71828_REG_BUCK5_VOLT, | |
400 | .run_mask = BD71828_MASK_BUCK5_VOLT, | |
401 | .idle_mask = BD71828_MASK_BUCK5_VOLT, | |
402 | .suspend_mask = BD71828_MASK_BUCK5_VOLT, | |
403 | .lpsr_mask = BD71828_MASK_BUCK5_VOLT, | |
404 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
405 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
406 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
407 | }, | |
408 | }, | |
409 | { | |
410 | .desc = { | |
411 | .name = "buck6", | |
412 | .of_match = of_match_ptr("BUCK6"), | |
413 | .regulators_node = of_match_ptr("regulators"), | |
414 | .id = BD71828_BUCK6, | |
415 | .ops = &bd71828_dvs_buck_ops, | |
416 | .type = REGULATOR_VOLTAGE, | |
417 | .linear_ranges = bd71828_buck1267_volts, | |
418 | .n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), | |
419 | .n_voltages = BD71828_BUCK1267_VOLTS, | |
420 | .enable_reg = BD71828_REG_BUCK6_EN, | |
421 | .enable_mask = BD71828_MASK_RUN_EN, | |
422 | .vsel_reg = BD71828_REG_BUCK6_VOLT, | |
423 | .vsel_mask = BD71828_MASK_BUCK1267_VOLT, | |
424 | .owner = THIS_MODULE, | |
425 | .of_parse_cb = buck_set_hw_dvs_levels, | |
426 | }, | |
427 | .dvs = { | |
428 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
429 | ROHM_DVS_LEVEL_SUSPEND | | |
430 | ROHM_DVS_LEVEL_LPSR, | |
431 | .run_reg = BD71828_REG_BUCK6_VOLT, | |
432 | .run_mask = BD71828_MASK_BUCK1267_VOLT, | |
433 | .idle_reg = BD71828_REG_BUCK6_IDLE_VOLT, | |
434 | .idle_mask = BD71828_MASK_BUCK1267_VOLT, | |
435 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
436 | .suspend_reg = BD71828_REG_BUCK6_SUSP_VOLT, | |
437 | .suspend_mask = BD71828_MASK_BUCK1267_VOLT, | |
438 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
439 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
440 | .lpsr_reg = BD71828_REG_BUCK6_SUSP_VOLT, | |
441 | .lpsr_mask = BD71828_MASK_BUCK1267_VOLT, | |
442 | }, | |
443 | .reg_inits = buck6_inits, | |
444 | .reg_init_amnt = ARRAY_SIZE(buck6_inits), | |
445 | }, | |
446 | { | |
447 | .desc = { | |
448 | .name = "buck7", | |
449 | .of_match = of_match_ptr("BUCK7"), | |
450 | .regulators_node = of_match_ptr("regulators"), | |
451 | .id = BD71828_BUCK7, | |
452 | .ops = &bd71828_dvs_buck_ops, | |
453 | .type = REGULATOR_VOLTAGE, | |
454 | .linear_ranges = bd71828_buck1267_volts, | |
455 | .n_linear_ranges = ARRAY_SIZE(bd71828_buck1267_volts), | |
456 | .n_voltages = BD71828_BUCK1267_VOLTS, | |
457 | .enable_reg = BD71828_REG_BUCK7_EN, | |
458 | .enable_mask = BD71828_MASK_RUN_EN, | |
459 | .vsel_reg = BD71828_REG_BUCK7_VOLT, | |
460 | .vsel_mask = BD71828_MASK_BUCK1267_VOLT, | |
461 | .owner = THIS_MODULE, | |
462 | .of_parse_cb = buck_set_hw_dvs_levels, | |
463 | }, | |
464 | .dvs = { | |
465 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
466 | ROHM_DVS_LEVEL_SUSPEND | | |
467 | ROHM_DVS_LEVEL_LPSR, | |
468 | .run_reg = BD71828_REG_BUCK7_VOLT, | |
469 | .run_mask = BD71828_MASK_BUCK1267_VOLT, | |
470 | .idle_reg = BD71828_REG_BUCK7_IDLE_VOLT, | |
471 | .idle_mask = BD71828_MASK_BUCK1267_VOLT, | |
472 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
473 | .suspend_reg = BD71828_REG_BUCK7_SUSP_VOLT, | |
474 | .suspend_mask = BD71828_MASK_BUCK1267_VOLT, | |
475 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
476 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
477 | .lpsr_reg = BD71828_REG_BUCK7_SUSP_VOLT, | |
478 | .lpsr_mask = BD71828_MASK_BUCK1267_VOLT, | |
479 | }, | |
480 | .reg_inits = buck7_inits, | |
481 | .reg_init_amnt = ARRAY_SIZE(buck7_inits), | |
482 | }, | |
483 | { | |
484 | .desc = { | |
485 | .name = "ldo1", | |
486 | .of_match = of_match_ptr("LDO1"), | |
487 | .regulators_node = of_match_ptr("regulators"), | |
488 | .id = BD71828_LDO1, | |
489 | .ops = &bd71828_ldo_ops, | |
490 | .type = REGULATOR_VOLTAGE, | |
491 | .linear_ranges = bd71828_ldo_volts, | |
492 | .n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), | |
493 | .n_voltages = BD71828_LDO_VOLTS, | |
494 | .enable_reg = BD71828_REG_LDO1_EN, | |
495 | .enable_mask = BD71828_MASK_RUN_EN, | |
496 | .vsel_reg = BD71828_REG_LDO1_VOLT, | |
497 | .vsel_mask = BD71828_MASK_LDO_VOLT, | |
498 | .owner = THIS_MODULE, | |
499 | .of_parse_cb = buck_set_hw_dvs_levels, | |
500 | }, | |
501 | .dvs = { | |
502 | /* | |
503 | * LDO1 only supports single voltage for all states. | |
504 | * voltage can be individually enabled for each state | |
505 | * though => allow setting all states to support | |
506 | * enabling power rail on different states. | |
507 | */ | |
508 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
509 | ROHM_DVS_LEVEL_SUSPEND | | |
510 | ROHM_DVS_LEVEL_LPSR, | |
511 | .run_reg = BD71828_REG_LDO1_VOLT, | |
512 | .idle_reg = BD71828_REG_LDO1_VOLT, | |
513 | .suspend_reg = BD71828_REG_LDO1_VOLT, | |
514 | .lpsr_reg = BD71828_REG_LDO1_VOLT, | |
515 | .run_mask = BD71828_MASK_LDO_VOLT, | |
516 | .idle_mask = BD71828_MASK_LDO_VOLT, | |
517 | .suspend_mask = BD71828_MASK_LDO_VOLT, | |
518 | .lpsr_mask = BD71828_MASK_LDO_VOLT, | |
519 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
520 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
521 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
522 | }, | |
523 | }, { | |
524 | .desc = { | |
525 | .name = "ldo2", | |
526 | .of_match = of_match_ptr("LDO2"), | |
527 | .regulators_node = of_match_ptr("regulators"), | |
528 | .id = BD71828_LDO2, | |
529 | .ops = &bd71828_ldo_ops, | |
530 | .type = REGULATOR_VOLTAGE, | |
531 | .linear_ranges = bd71828_ldo_volts, | |
532 | .n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), | |
533 | .n_voltages = BD71828_LDO_VOLTS, | |
534 | .enable_reg = BD71828_REG_LDO2_EN, | |
535 | .enable_mask = BD71828_MASK_RUN_EN, | |
536 | .vsel_reg = BD71828_REG_LDO2_VOLT, | |
537 | .vsel_mask = BD71828_MASK_LDO_VOLT, | |
538 | .owner = THIS_MODULE, | |
539 | .of_parse_cb = buck_set_hw_dvs_levels, | |
540 | }, | |
541 | .dvs = { | |
542 | /* | |
543 | * LDO2 only supports single voltage for all states. | |
544 | * voltage can be individually enabled for each state | |
545 | * though => allow setting all states to support | |
546 | * enabling power rail on different states. | |
547 | */ | |
548 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
549 | ROHM_DVS_LEVEL_SUSPEND | | |
550 | ROHM_DVS_LEVEL_LPSR, | |
551 | .run_reg = BD71828_REG_LDO2_VOLT, | |
552 | .idle_reg = BD71828_REG_LDO2_VOLT, | |
553 | .suspend_reg = BD71828_REG_LDO2_VOLT, | |
554 | .lpsr_reg = BD71828_REG_LDO2_VOLT, | |
555 | .run_mask = BD71828_MASK_LDO_VOLT, | |
556 | .idle_mask = BD71828_MASK_LDO_VOLT, | |
557 | .suspend_mask = BD71828_MASK_LDO_VOLT, | |
558 | .lpsr_mask = BD71828_MASK_LDO_VOLT, | |
559 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
560 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
561 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
562 | }, | |
563 | }, { | |
564 | .desc = { | |
565 | .name = "ldo3", | |
566 | .of_match = of_match_ptr("LDO3"), | |
567 | .regulators_node = of_match_ptr("regulators"), | |
568 | .id = BD71828_LDO3, | |
569 | .ops = &bd71828_ldo_ops, | |
570 | .type = REGULATOR_VOLTAGE, | |
571 | .linear_ranges = bd71828_ldo_volts, | |
572 | .n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), | |
573 | .n_voltages = BD71828_LDO_VOLTS, | |
574 | .enable_reg = BD71828_REG_LDO3_EN, | |
575 | .enable_mask = BD71828_MASK_RUN_EN, | |
576 | .vsel_reg = BD71828_REG_LDO3_VOLT, | |
577 | .vsel_mask = BD71828_MASK_LDO_VOLT, | |
578 | .owner = THIS_MODULE, | |
579 | .of_parse_cb = buck_set_hw_dvs_levels, | |
580 | }, | |
581 | .dvs = { | |
582 | /* | |
583 | * LDO3 only supports single voltage for all states. | |
584 | * voltage can be individually enabled for each state | |
585 | * though => allow setting all states to support | |
586 | * enabling power rail on different states. | |
587 | */ | |
588 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
589 | ROHM_DVS_LEVEL_SUSPEND | | |
590 | ROHM_DVS_LEVEL_LPSR, | |
591 | .run_reg = BD71828_REG_LDO3_VOLT, | |
592 | .idle_reg = BD71828_REG_LDO3_VOLT, | |
593 | .suspend_reg = BD71828_REG_LDO3_VOLT, | |
594 | .lpsr_reg = BD71828_REG_LDO3_VOLT, | |
595 | .run_mask = BD71828_MASK_LDO_VOLT, | |
596 | .idle_mask = BD71828_MASK_LDO_VOLT, | |
597 | .suspend_mask = BD71828_MASK_LDO_VOLT, | |
598 | .lpsr_mask = BD71828_MASK_LDO_VOLT, | |
599 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
600 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
601 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
602 | }, | |
603 | ||
604 | }, { | |
605 | .desc = { | |
606 | .name = "ldo4", | |
607 | .of_match = of_match_ptr("LDO4"), | |
608 | .regulators_node = of_match_ptr("regulators"), | |
609 | .id = BD71828_LDO4, | |
610 | .ops = &bd71828_ldo_ops, | |
611 | .type = REGULATOR_VOLTAGE, | |
612 | .linear_ranges = bd71828_ldo_volts, | |
613 | .n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), | |
614 | .n_voltages = BD71828_LDO_VOLTS, | |
615 | .enable_reg = BD71828_REG_LDO4_EN, | |
616 | .enable_mask = BD71828_MASK_RUN_EN, | |
617 | .vsel_reg = BD71828_REG_LDO4_VOLT, | |
618 | .vsel_mask = BD71828_MASK_LDO_VOLT, | |
619 | .owner = THIS_MODULE, | |
620 | .of_parse_cb = buck_set_hw_dvs_levels, | |
621 | }, | |
622 | .dvs = { | |
623 | /* | |
624 | * LDO1 only supports single voltage for all states. | |
625 | * voltage can be individually enabled for each state | |
626 | * though => allow setting all states to support | |
627 | * enabling power rail on different states. | |
628 | */ | |
629 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
630 | ROHM_DVS_LEVEL_SUSPEND | | |
631 | ROHM_DVS_LEVEL_LPSR, | |
632 | .run_reg = BD71828_REG_LDO4_VOLT, | |
633 | .idle_reg = BD71828_REG_LDO4_VOLT, | |
634 | .suspend_reg = BD71828_REG_LDO4_VOLT, | |
635 | .lpsr_reg = BD71828_REG_LDO4_VOLT, | |
636 | .run_mask = BD71828_MASK_LDO_VOLT, | |
637 | .idle_mask = BD71828_MASK_LDO_VOLT, | |
638 | .suspend_mask = BD71828_MASK_LDO_VOLT, | |
639 | .lpsr_mask = BD71828_MASK_LDO_VOLT, | |
640 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
641 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
642 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
643 | }, | |
644 | }, { | |
645 | .desc = { | |
646 | .name = "ldo5", | |
647 | .of_match = of_match_ptr("LDO5"), | |
648 | .regulators_node = of_match_ptr("regulators"), | |
649 | .id = BD71828_LDO5, | |
650 | .ops = &bd71828_ldo_ops, | |
651 | .type = REGULATOR_VOLTAGE, | |
652 | .linear_ranges = bd71828_ldo_volts, | |
653 | .n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), | |
654 | .n_voltages = BD71828_LDO_VOLTS, | |
655 | .enable_reg = BD71828_REG_LDO5_EN, | |
656 | .enable_mask = BD71828_MASK_RUN_EN, | |
657 | .vsel_reg = BD71828_REG_LDO5_VOLT, | |
658 | .vsel_mask = BD71828_MASK_LDO_VOLT, | |
659 | .of_parse_cb = buck_set_hw_dvs_levels, | |
660 | .owner = THIS_MODULE, | |
661 | }, | |
662 | /* | |
663 | * LDO5 is special. It can choose vsel settings to be configured | |
664 | * from 2 different registers (by GPIO). | |
665 | * | |
666 | * This driver supports only configuration where | |
667 | * BD71828_REG_LDO5_VOLT_L is used. | |
668 | */ | |
669 | .dvs = { | |
670 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
671 | ROHM_DVS_LEVEL_SUSPEND | | |
672 | ROHM_DVS_LEVEL_LPSR, | |
673 | .run_reg = BD71828_REG_LDO5_VOLT, | |
674 | .idle_reg = BD71828_REG_LDO5_VOLT, | |
675 | .suspend_reg = BD71828_REG_LDO5_VOLT, | |
676 | .lpsr_reg = BD71828_REG_LDO5_VOLT, | |
677 | .run_mask = BD71828_MASK_LDO_VOLT, | |
678 | .idle_mask = BD71828_MASK_LDO_VOLT, | |
679 | .suspend_mask = BD71828_MASK_LDO_VOLT, | |
680 | .lpsr_mask = BD71828_MASK_LDO_VOLT, | |
681 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
682 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
683 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
684 | }, | |
685 | ||
686 | }, { | |
687 | .desc = { | |
688 | .name = "ldo6", | |
689 | .of_match = of_match_ptr("LDO6"), | |
690 | .regulators_node = of_match_ptr("regulators"), | |
691 | .id = BD71828_LDO6, | |
692 | .ops = &bd71828_ldo6_ops, | |
693 | .type = REGULATOR_VOLTAGE, | |
a14a0b5f | 694 | .fixed_uV = BD71828_LDO_6_VOLTAGE, |
522498f8 MV |
695 | .n_voltages = 1, |
696 | .enable_reg = BD71828_REG_LDO6_EN, | |
697 | .enable_mask = BD71828_MASK_RUN_EN, | |
698 | .owner = THIS_MODULE, | |
699 | /* | |
700 | * LDO6 only supports enable/disable for all states. | |
701 | * Voltage for LDO6 is fixed. | |
702 | */ | |
703 | .of_parse_cb = ldo6_parse_dt, | |
704 | }, | |
705 | }, { | |
706 | .desc = { | |
707 | /* SNVS LDO in data-sheet */ | |
708 | .name = "ldo7", | |
709 | .of_match = of_match_ptr("LDO7"), | |
710 | .regulators_node = of_match_ptr("regulators"), | |
711 | .id = BD71828_LDO_SNVS, | |
712 | .ops = &bd71828_ldo_ops, | |
713 | .type = REGULATOR_VOLTAGE, | |
714 | .linear_ranges = bd71828_ldo_volts, | |
715 | .n_linear_ranges = ARRAY_SIZE(bd71828_ldo_volts), | |
716 | .n_voltages = BD71828_LDO_VOLTS, | |
717 | .enable_reg = BD71828_REG_LDO7_EN, | |
718 | .enable_mask = BD71828_MASK_RUN_EN, | |
719 | .vsel_reg = BD71828_REG_LDO7_VOLT, | |
720 | .vsel_mask = BD71828_MASK_LDO_VOLT, | |
721 | .owner = THIS_MODULE, | |
722 | .of_parse_cb = buck_set_hw_dvs_levels, | |
723 | }, | |
724 | .dvs = { | |
725 | /* | |
726 | * LDO7 only supports single voltage for all states. | |
727 | * voltage can be individually enabled for each state | |
728 | * though => allow setting all states to support | |
729 | * enabling power rail on different states. | |
730 | */ | |
731 | .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_IDLE | | |
732 | ROHM_DVS_LEVEL_SUSPEND | | |
733 | ROHM_DVS_LEVEL_LPSR, | |
734 | .run_reg = BD71828_REG_LDO7_VOLT, | |
735 | .idle_reg = BD71828_REG_LDO7_VOLT, | |
736 | .suspend_reg = BD71828_REG_LDO7_VOLT, | |
737 | .lpsr_reg = BD71828_REG_LDO7_VOLT, | |
738 | .run_mask = BD71828_MASK_LDO_VOLT, | |
739 | .idle_mask = BD71828_MASK_LDO_VOLT, | |
740 | .suspend_mask = BD71828_MASK_LDO_VOLT, | |
741 | .lpsr_mask = BD71828_MASK_LDO_VOLT, | |
742 | .idle_on_mask = BD71828_MASK_IDLE_EN, | |
743 | .suspend_on_mask = BD71828_MASK_SUSP_EN, | |
744 | .lpsr_on_mask = BD71828_MASK_LPSR_EN, | |
745 | }, | |
746 | ||
747 | }, | |
748 | }; | |
749 | ||
750 | static int bd71828_probe(struct platform_device *pdev) | |
751 | { | |
752 | struct rohm_regmap_dev *bd71828; | |
753 | int i, j, ret; | |
754 | struct regulator_config config = { | |
755 | .dev = pdev->dev.parent, | |
756 | }; | |
757 | ||
758 | bd71828 = dev_get_drvdata(pdev->dev.parent); | |
759 | if (!bd71828) { | |
760 | dev_err(&pdev->dev, "No MFD driver data\n"); | |
761 | return -EINVAL; | |
762 | } | |
763 | ||
764 | config.regmap = bd71828->regmap; | |
765 | ||
766 | for (i = 0; i < ARRAY_SIZE(bd71828_rdata); i++) { | |
767 | struct regulator_dev *rdev; | |
768 | const struct bd71828_regulator_data *rd; | |
769 | ||
770 | rd = &bd71828_rdata[i]; | |
771 | rdev = devm_regulator_register(&pdev->dev, | |
772 | &rd->desc, &config); | |
773 | if (IS_ERR(rdev)) { | |
774 | dev_err(&pdev->dev, | |
775 | "failed to register %s regulator\n", | |
776 | rd->desc.name); | |
777 | return PTR_ERR(rdev); | |
778 | } | |
779 | for (j = 0; j < rd->reg_init_amnt; j++) { | |
780 | ret = regmap_update_bits(bd71828->regmap, | |
781 | rd->reg_inits[j].reg, | |
782 | rd->reg_inits[j].mask, | |
783 | rd->reg_inits[j].val); | |
784 | if (ret) { | |
785 | dev_err(&pdev->dev, | |
786 | "regulator %s init failed\n", | |
787 | rd->desc.name); | |
788 | return ret; | |
789 | } | |
790 | } | |
791 | } | |
792 | return 0; | |
793 | } | |
794 | ||
795 | static struct platform_driver bd71828_regulator = { | |
796 | .driver = { | |
797 | .name = "bd71828-pmic" | |
798 | }, | |
799 | .probe = bd71828_probe, | |
800 | }; | |
801 | ||
802 | module_platform_driver(bd71828_regulator); | |
803 | ||
804 | MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>"); | |
805 | MODULE_DESCRIPTION("BD71828 voltage regulator driver"); | |
806 | MODULE_LICENSE("GPL"); | |
807 | MODULE_ALIAS("platform:bd71828-pmic"); |