1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Regulators driver for Marvell 88PM8607 |
4 | * |
5 | * Copyright (C) 2009 Marvell International Ltd. |
6 | * Haojian Zhuang <haojian.zhuang@marvell.com> |
7 | */ |
8 | #include <linux/kernel.h> |
9 | #include <linux/init.h> |
10 | #include <linux/err.h> |
11 | #include <linux/of.h> |
12 | #include <linux/regulator/of_regulator.h> |
13 | #include <linux/platform_device.h> |
14 | #include <linux/regulator/driver.h> |
15 | #include <linux/regulator/machine.h> |
16 | #include <linux/mfd/88pm860x.h> |
17 | #include <linux/module.h> |
18 | |
19 | struct pm8607_regulator_info { |
20 | struct regulator_desc desc; |
21 | |
22 | unsigned int *vol_suspend; |
23 | |
24 | int slope_double; |
25 | }; |
26 | |
27 | static const unsigned int BUCK1_table[] = { |
28 | 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, |
29 | 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, |
30 | 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, |
31 | 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, |
32 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
33 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
34 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
35 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
36 | }; |
37 | |
38 | static const unsigned int BUCK1_suspend_table[] = { |
39 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
40 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
41 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
42 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
43 | 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, |
44 | 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, |
45 | 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, |
46 | 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, |
47 | }; |
48 | |
49 | static const unsigned int BUCK2_table[] = { |
50 | 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000, |
51 | 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000, |
52 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, |
53 | 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, |
54 | 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000, |
55 | 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000, |
56 | 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000, |
57 | 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000, |
58 | }; |
59 | |
60 | static const unsigned int BUCK2_suspend_table[] = { |
61 | 0, 50000, 100000, 150000, 200000, 250000, 300000, 350000, |
62 | 400000, 450000, 500000, 550000, 600000, 650000, 700000, 750000, |
63 | 800000, 850000, 900000, 950000, 1000000, 1050000, 1100000, 1150000, |
64 | 1200000, 1250000, 1300000, 1350000, 1400000, 1450000, 1500000, 1550000, |
65 | 1600000, 1650000, 1700000, 1750000, 1800000, 1850000, 1900000, 1950000, |
66 | 2000000, 2050000, 2100000, 2150000, 2200000, 2250000, 2300000, 2350000, |
67 | 2400000, 2450000, 2500000, 2550000, 2600000, 2650000, 2700000, 2750000, |
68 | 2800000, 2850000, 2900000, 2950000, 3000000, 3000000, 3000000, 3000000, |
69 | }; |
70 | |
71 | static const unsigned int BUCK3_table[] = { |
72 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
73 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
74 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
75 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
76 | 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, |
77 | 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, |
78 | 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, |
79 | 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, |
80 | }; |
81 | |
82 | static const unsigned int BUCK3_suspend_table[] = { |
83 | 0, 25000, 50000, 75000, 100000, 125000, 150000, 175000, |
84 | 200000, 225000, 250000, 275000, 300000, 325000, 350000, 375000, |
85 | 400000, 425000, 450000, 475000, 500000, 525000, 550000, 575000, |
86 | 600000, 625000, 650000, 675000, 700000, 725000, 750000, 775000, |
87 | 800000, 825000, 850000, 875000, 900000, 925000, 950000, 975000, |
88 | 1000000, 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, |
89 | 1200000, 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, |
90 | 1400000, 1425000, 1450000, 1475000, 1500000, 1500000, 1500000, 1500000, |
91 | }; |
92 | |
93 | static const unsigned int LDO1_table[] = { |
94 | 1800000, 1200000, 2800000, 0, |
95 | }; |
96 | |
97 | static const unsigned int LDO1_suspend_table[] = { |
98 | 1800000, 1200000, 0, 0, |
99 | }; |
100 | |
101 | static const unsigned int LDO2_table[] = { |
102 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
103 | }; |
104 | |
105 | static const unsigned int LDO2_suspend_table[] = { |
106 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
107 | }; |
108 | |
109 | static const unsigned int LDO3_table[] = { |
110 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
111 | }; |
112 | |
113 | static const unsigned int LDO3_suspend_table[] = { |
114 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
115 | }; |
116 | |
117 | static const unsigned int LDO4_table[] = { |
118 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 3300000, |
119 | }; |
120 | |
121 | static const unsigned int LDO4_suspend_table[] = { |
122 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2900000, 2900000, |
123 | }; |
124 | |
125 | static const unsigned int LDO5_table[] = { |
126 | 2900000, 3000000, 3100000, 3300000, |
127 | }; |
128 | |
129 | static const unsigned int LDO5_suspend_table[] = { |
130 | 2900000, 0, 0, 0, |
131 | }; |
132 | |
133 | static const unsigned int LDO6_table[] = { |
134 | 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 3300000, |
135 | }; |
136 | |
137 | static const unsigned int LDO6_suspend_table[] = { |
138 | 1800000, 1850000, 2600000, 2650000, 2700000, 2750000, 2800000, 2900000, |
139 | }; |
140 | |
141 | static const unsigned int LDO7_table[] = { |
142 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
143 | }; |
144 | |
145 | static const unsigned int LDO7_suspend_table[] = { |
146 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
147 | }; |
148 | |
149 | static const unsigned int LDO8_table[] = { |
150 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
151 | }; |
152 | |
153 | static const unsigned int LDO8_suspend_table[] = { |
154 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
155 | }; |
156 | |
157 | static const unsigned int LDO9_table[] = { |
158 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
159 | }; |
160 | |
161 | static const unsigned int LDO9_suspend_table[] = { |
162 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
163 | }; |
164 | |
165 | static const unsigned int LDO10_table[] = { |
166 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 3300000, |
167 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
168 | }; |
169 | |
170 | static const unsigned int LDO10_suspend_table[] = { |
171 | 1800000, 1850000, 1900000, 2700000, 2750000, 2800000, 2850000, 2900000, |
172 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
173 | }; |
174 | |
175 | static const unsigned int LDO12_table[] = { |
176 | 1800000, 1900000, 2700000, 2800000, 2900000, 3000000, 3100000, 3300000, |
177 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
178 | }; |
179 | |
180 | static const unsigned int LDO12_suspend_table[] = { |
181 | 1800000, 1900000, 2700000, 2800000, 2900000, 2900000, 2900000, 2900000, |
182 | 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, 1200000, |
183 | }; |
184 | |
185 | static const unsigned int LDO13_table[] = { |
186 | 1200000, 1300000, 1800000, 2000000, 2500000, 2800000, 3000000, 0, |
187 | }; |
188 | |
189 | static const unsigned int LDO13_suspend_table[] = { |
190 | 0, |
191 | }; |
192 | |
193 | static const unsigned int LDO14_table[] = { |
194 | 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 3300000, |
195 | }; |
196 | |
197 | static const unsigned int LDO14_suspend_table[] = { |
198 | 1800000, 1850000, 2700000, 2750000, 2800000, 2850000, 2900000, 2900000, |
199 | }; |
200 | |
201 | static int pm8607_list_voltage(struct regulator_dev *rdev, unsigned index) |
202 | { |
203 | struct pm8607_regulator_info *info = rdev_get_drvdata(rdev); |
204 | int ret; |
205 | |
206 | ret = regulator_list_voltage_table(rdev, selector: index); |
207 | if (ret < 0) |
208 | return ret; |
209 | |
210 | if (info->slope_double) |
211 | ret <<= 1; |
212 | |
213 | return ret; |
214 | } |
215 | |
216 | static const struct regulator_ops pm8607_regulator_ops = { |
217 | .list_voltage = pm8607_list_voltage, |
218 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
219 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
220 | .enable = regulator_enable_regmap, |
221 | .disable = regulator_disable_regmap, |
222 | .is_enabled = regulator_is_enabled_regmap, |
223 | }; |
224 | |
225 | static const struct regulator_ops pm8606_preg_ops = { |
226 | .enable = regulator_enable_regmap, |
227 | .disable = regulator_disable_regmap, |
228 | .is_enabled = regulator_is_enabled_regmap, |
229 | }; |
230 | |
231 | #define PM8606_PREG(ereg, ebit) \ |
232 | { \ |
233 | .desc = { \ |
234 | .name = "PREG", \ |
235 | .of_match = of_match_ptr("PREG"), \ |
236 | .regulators_node = of_match_ptr("regulators"), \ |
237 | .ops = &pm8606_preg_ops, \ |
238 | .type = REGULATOR_CURRENT, \ |
239 | .id = PM8606_ID_PREG, \ |
240 | .owner = THIS_MODULE, \ |
241 | .enable_reg = PM8606_##ereg, \ |
242 | .enable_mask = (ebit), \ |
243 | .enable_is_inverted = true, \ |
244 | }, \ |
245 | } |
246 | |
247 | #define PM8607_DVC(vreg, ureg, ubit, ereg, ebit) \ |
248 | { \ |
249 | .desc = { \ |
250 | .name = #vreg, \ |
251 | .of_match = of_match_ptr(#vreg), \ |
252 | .regulators_node = of_match_ptr("regulators"), \ |
253 | .ops = &pm8607_regulator_ops, \ |
254 | .type = REGULATOR_VOLTAGE, \ |
255 | .id = PM8607_ID_##vreg, \ |
256 | .owner = THIS_MODULE, \ |
257 | .volt_table = vreg##_table, \ |
258 | .n_voltages = ARRAY_SIZE(vreg##_table), \ |
259 | .vsel_reg = PM8607_##vreg, \ |
260 | .vsel_mask = ARRAY_SIZE(vreg##_table) - 1, \ |
261 | .apply_reg = PM8607_##ureg, \ |
262 | .apply_bit = (ubit), \ |
263 | .enable_reg = PM8607_##ereg, \ |
264 | .enable_mask = 1 << (ebit), \ |
265 | }, \ |
266 | .slope_double = (0), \ |
267 | .vol_suspend = (unsigned int *)&vreg##_suspend_table, \ |
268 | } |
269 | |
270 | #define PM8607_LDO(_id, vreg, shift, ereg, ebit) \ |
271 | { \ |
272 | .desc = { \ |
273 | .name = "LDO" #_id, \ |
274 | .of_match = of_match_ptr("LDO" #_id), \ |
275 | .regulators_node = of_match_ptr("regulators"), \ |
276 | .ops = &pm8607_regulator_ops, \ |
277 | .type = REGULATOR_VOLTAGE, \ |
278 | .id = PM8607_ID_LDO##_id, \ |
279 | .owner = THIS_MODULE, \ |
280 | .volt_table = LDO##_id##_table, \ |
281 | .n_voltages = ARRAY_SIZE(LDO##_id##_table), \ |
282 | .vsel_reg = PM8607_##vreg, \ |
283 | .vsel_mask = (ARRAY_SIZE(LDO##_id##_table) - 1) << (shift), \ |
284 | .enable_reg = PM8607_##ereg, \ |
285 | .enable_mask = 1 << (ebit), \ |
286 | }, \ |
287 | .slope_double = (0), \ |
288 | .vol_suspend = (unsigned int *)&LDO##_id##_suspend_table, \ |
289 | } |
290 | |
291 | static struct pm8607_regulator_info pm8607_regulator_info[] = { |
292 | PM8607_DVC(BUCK1, GO, BIT(0), SUPPLIES_EN11, 0), |
293 | PM8607_DVC(BUCK2, GO, BIT(1), SUPPLIES_EN11, 1), |
294 | PM8607_DVC(BUCK3, GO, BIT(2), SUPPLIES_EN11, 2), |
295 | |
296 | PM8607_LDO(1, LDO1, 0, SUPPLIES_EN11, 3), |
297 | PM8607_LDO(2, LDO2, 0, SUPPLIES_EN11, 4), |
298 | PM8607_LDO(3, LDO3, 0, SUPPLIES_EN11, 5), |
299 | PM8607_LDO(4, LDO4, 0, SUPPLIES_EN11, 6), |
300 | PM8607_LDO(5, LDO5, 0, SUPPLIES_EN11, 7), |
301 | PM8607_LDO(6, LDO6, 0, SUPPLIES_EN12, 0), |
302 | PM8607_LDO(7, LDO7, 0, SUPPLIES_EN12, 1), |
303 | PM8607_LDO(8, LDO8, 0, SUPPLIES_EN12, 2), |
304 | PM8607_LDO(9, LDO9, 0, SUPPLIES_EN12, 3), |
305 | PM8607_LDO(10, LDO10, 0, SUPPLIES_EN12, 4), |
306 | PM8607_LDO(12, LDO12, 0, SUPPLIES_EN12, 5), |
307 | PM8607_LDO(13, VIBRATOR_SET, 1, VIBRATOR_SET, 0), |
308 | PM8607_LDO(14, LDO14, 0, SUPPLIES_EN12, 6), |
309 | }; |
310 | |
311 | static struct pm8607_regulator_info pm8606_regulator_info[] = { |
312 | PM8606_PREG(PREREGULATORB, 5), |
313 | }; |
314 | |
315 | static int pm8607_regulator_probe(struct platform_device *pdev) |
316 | { |
317 | struct pm860x_chip *chip = dev_get_drvdata(dev: pdev->dev.parent); |
318 | struct pm8607_regulator_info *info = NULL; |
319 | struct regulator_init_data *pdata = dev_get_platdata(dev: &pdev->dev); |
320 | struct regulator_config config = { }; |
321 | struct regulator_dev *rdev; |
322 | struct resource *res; |
323 | int i; |
324 | |
325 | res = platform_get_resource(pdev, IORESOURCE_REG, 0); |
326 | if (res) { |
327 | /* There're resources in 88PM8607 regulator driver */ |
328 | for (i = 0; i < ARRAY_SIZE(pm8607_regulator_info); i++) { |
329 | info = &pm8607_regulator_info[i]; |
330 | if (info->desc.vsel_reg == res->start) |
331 | break; |
332 | } |
333 | if (i == ARRAY_SIZE(pm8607_regulator_info)) { |
334 | dev_err(&pdev->dev, "Failed to find regulator %llu\n" , |
335 | (unsigned long long)res->start); |
336 | return -EINVAL; |
337 | } |
338 | } else { |
339 | /* There's no resource in 88PM8606 PREG regulator driver */ |
340 | info = &pm8606_regulator_info[0]; |
341 | /* i is used to check regulator ID */ |
342 | i = -1; |
343 | } |
344 | |
345 | /* check DVC ramp slope double */ |
346 | if ((i == PM8607_ID_BUCK3) && chip->buck3_double) |
347 | info->slope_double = 1; |
348 | |
349 | config.dev = chip->dev; |
350 | config.driver_data = info; |
351 | |
352 | if (pdata) |
353 | config.init_data = pdata; |
354 | |
355 | if (chip->id == CHIP_PM8607) |
356 | config.regmap = chip->regmap; |
357 | else |
358 | config.regmap = chip->regmap_companion; |
359 | |
360 | rdev = devm_regulator_register(dev: &pdev->dev, regulator_desc: &info->desc, config: &config); |
361 | if (IS_ERR(ptr: rdev)) { |
362 | dev_err(&pdev->dev, "failed to register regulator %s\n" , |
363 | info->desc.name); |
364 | return PTR_ERR(ptr: rdev); |
365 | } |
366 | |
367 | platform_set_drvdata(pdev, data: info); |
368 | return 0; |
369 | } |
370 | |
371 | static const struct platform_device_id pm8607_regulator_driver_ids[] = { |
372 | { |
373 | .name = "88pm860x-regulator" , |
374 | .driver_data = 0, |
375 | }, { |
376 | .name = "88pm860x-preg" , |
377 | .driver_data = 0, |
378 | }, |
379 | { }, |
380 | }; |
381 | MODULE_DEVICE_TABLE(platform, pm8607_regulator_driver_ids); |
382 | |
383 | static struct platform_driver pm8607_regulator_driver = { |
384 | .driver = { |
385 | .name = "88pm860x-regulator" , |
386 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
387 | }, |
388 | .probe = pm8607_regulator_probe, |
389 | .id_table = pm8607_regulator_driver_ids, |
390 | }; |
391 | |
392 | static int __init pm8607_regulator_init(void) |
393 | { |
394 | return platform_driver_register(&pm8607_regulator_driver); |
395 | } |
396 | subsys_initcall(pm8607_regulator_init); |
397 | |
398 | static void __exit pm8607_regulator_exit(void) |
399 | { |
400 | platform_driver_unregister(&pm8607_regulator_driver); |
401 | } |
402 | module_exit(pm8607_regulator_exit); |
403 | |
404 | MODULE_LICENSE("GPL" ); |
405 | MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>" ); |
406 | MODULE_DESCRIPTION("Regulator Driver for Marvell 88PM8607 PMIC" ); |
407 | MODULE_ALIAS("platform:88pm8607-regulator" ); |
408 | |