Commit | Line | Data |
---|---|---|
49610235 MR |
1 | /* |
2 | * Regulator driver for TI TPS6586x | |
3 | * | |
4 | * Copyright (C) 2010 Compulab Ltd. | |
5 | * Author: Mike Rapoport <mike@compulab.co.il> | |
6 | * | |
7 | * Based on da903x | |
8 | * Copyright (C) 2006-2008 Marvell International Ltd. | |
9 | * Copyright (C) 2008 Compulab Ltd. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License version 2 as | |
13 | * published by the Free Software Foundation. | |
14 | */ | |
15 | ||
49610235 | 16 | #include <linux/kernel.h> |
65602c32 | 17 | #include <linux/module.h> |
49610235 MR |
18 | #include <linux/init.h> |
19 | #include <linux/err.h> | |
64e48160 | 20 | #include <linux/of.h> |
49610235 MR |
21 | #include <linux/slab.h> |
22 | #include <linux/platform_device.h> | |
23 | #include <linux/regulator/driver.h> | |
24 | #include <linux/regulator/machine.h> | |
64e48160 | 25 | #include <linux/regulator/of_regulator.h> |
49610235 MR |
26 | #include <linux/mfd/tps6586x.h> |
27 | ||
28 | /* supply control and voltage setting */ | |
29 | #define TPS6586X_SUPPLYENA 0x10 | |
30 | #define TPS6586X_SUPPLYENB 0x11 | |
31 | #define TPS6586X_SUPPLYENC 0x12 | |
32 | #define TPS6586X_SUPPLYEND 0x13 | |
33 | #define TPS6586X_SUPPLYENE 0x14 | |
34 | #define TPS6586X_VCC1 0x20 | |
35 | #define TPS6586X_VCC2 0x21 | |
36 | #define TPS6586X_SM1V1 0x23 | |
37 | #define TPS6586X_SM1V2 0x24 | |
38 | #define TPS6586X_SM1SL 0x25 | |
39 | #define TPS6586X_SM0V1 0x26 | |
40 | #define TPS6586X_SM0V2 0x27 | |
41 | #define TPS6586X_SM0SL 0x28 | |
42 | #define TPS6586X_LDO2AV1 0x29 | |
43 | #define TPS6586X_LDO2AV2 0x2A | |
44 | #define TPS6586X_LDO2BV1 0x2F | |
45 | #define TPS6586X_LDO2BV2 0x30 | |
46 | #define TPS6586X_LDO4V1 0x32 | |
47 | #define TPS6586X_LDO4V2 0x33 | |
48 | ||
49 | /* converter settings */ | |
50 | #define TPS6586X_SUPPLYV1 0x41 | |
51 | #define TPS6586X_SUPPLYV2 0x42 | |
52 | #define TPS6586X_SUPPLYV3 0x43 | |
53 | #define TPS6586X_SUPPLYV4 0x44 | |
54 | #define TPS6586X_SUPPLYV5 0x45 | |
55 | #define TPS6586X_SUPPLYV6 0x46 | |
56 | #define TPS6586X_SMODE1 0x47 | |
57 | #define TPS6586X_SMODE2 0x48 | |
58 | ||
59 | struct tps6586x_regulator { | |
60 | struct regulator_desc desc; | |
61 | ||
49610235 MR |
62 | int enable_bit[2]; |
63 | int enable_reg[2]; | |
49610235 MR |
64 | }; |
65 | ||
66 | static inline struct device *to_tps6586x_dev(struct regulator_dev *rdev) | |
67 | { | |
7c7fac30 | 68 | return rdev_get_dev(rdev)->parent; |
49610235 MR |
69 | } |
70 | ||
e1816235 | 71 | static struct regulator_ops tps6586x_regulator_ops = { |
f4647037 | 72 | .list_voltage = regulator_list_voltage_table, |
4d673bbc | 73 | .map_voltage = regulator_map_voltage_ascend, |
7c7475c0 | 74 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
d645d591 | 75 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
49610235 | 76 | |
7c7475c0 AL |
77 | .is_enabled = regulator_is_enabled_regmap, |
78 | .enable = regulator_enable_regmap, | |
79 | .disable = regulator_disable_regmap, | |
49610235 MR |
80 | }; |
81 | ||
9394b80c | 82 | static struct regulator_ops tps6586x_sys_regulator_ops = { |
49610235 MR |
83 | }; |
84 | ||
f4647037 AL |
85 | static const unsigned int tps6586x_ldo0_voltages[] = { |
86 | 1200000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, | |
87 | }; | |
88 | ||
89 | static const unsigned int tps6586x_ldo4_voltages[] = { | |
90 | 1700000, 1725000, 1750000, 1775000, 1800000, 1825000, 1850000, 1875000, | |
91 | 1900000, 1925000, 1950000, 1975000, 2000000, 2025000, 2050000, 2075000, | |
92 | 2100000, 2125000, 2150000, 2175000, 2200000, 2225000, 2250000, 2275000, | |
93 | 2300000, 2325000, 2350000, 2375000, 2400000, 2425000, 2450000, 2475000, | |
49610235 MR |
94 | }; |
95 | ||
844a4f0d SA |
96 | #define tps658623_sm2_voltages tps6586x_ldo4_voltages |
97 | ||
f4647037 AL |
98 | static const unsigned int tps6586x_ldo_voltages[] = { |
99 | 1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, | |
49610235 MR |
100 | }; |
101 | ||
f4647037 AL |
102 | static const unsigned int tps6586x_sm2_voltages[] = { |
103 | 3000000, 3050000, 3100000, 3150000, 3200000, 3250000, 3300000, 3350000, | |
104 | 3400000, 3450000, 3500000, 3550000, 3600000, 3650000, 3700000, 3750000, | |
105 | 3800000, 3850000, 3900000, 3950000, 4000000, 4050000, 4100000, 4150000, | |
106 | 4200000, 4250000, 4300000, 4350000, 4400000, 4450000, 4500000, 4550000, | |
4cc2e393 GK |
107 | }; |
108 | ||
844a4f0d SA |
109 | static const unsigned int tps658643_sm2_voltages[] = { |
110 | 1025000, 1050000, 1075000, 1100000, 1125000, 1150000, 1175000, 1200000, | |
111 | 1225000, 1250000, 1275000, 1300000, 1325000, 1350000, 1375000, 1400000, | |
112 | 1425000, 1450000, 1475000, 1500000, 1525000, 1550000, 1575000, 1600000, | |
113 | 1625000, 1650000, 1675000, 1700000, 1725000, 1750000, 1775000, 1800000, | |
114 | }; | |
115 | ||
f4647037 AL |
116 | static const unsigned int tps6586x_dvm_voltages[] = { |
117 | 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, | |
118 | 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, | |
119 | 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, | |
120 | 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, | |
49610235 MR |
121 | }; |
122 | ||
7c7fac30 | 123 | #define TPS6586X_REGULATOR(_id, _pin_name, vdata, vreg, shift, nbits, \ |
d645d591 | 124 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
49610235 | 125 | .desc = { \ |
7c7fac30 | 126 | .supply_name = _pin_name, \ |
49610235 | 127 | .name = "REG-" #_id, \ |
e1816235 | 128 | .ops = &tps6586x_regulator_ops, \ |
49610235 MR |
129 | .type = REGULATOR_VOLTAGE, \ |
130 | .id = TPS6586X_ID_##_id, \ | |
844a4f0d SA |
131 | .n_voltages = ARRAY_SIZE(vdata##_voltages), \ |
132 | .volt_table = vdata##_voltages, \ | |
49610235 | 133 | .owner = THIS_MODULE, \ |
7c7475c0 AL |
134 | .enable_reg = TPS6586X_SUPPLY##ereg0, \ |
135 | .enable_mask = 1 << (ebit0), \ | |
136 | .vsel_reg = TPS6586X_##vreg, \ | |
137 | .vsel_mask = ((1 << (nbits)) - 1) << (shift), \ | |
d645d591 AL |
138 | .apply_reg = (goreg), \ |
139 | .apply_bit = (gobit), \ | |
49610235 | 140 | }, \ |
49610235 MR |
141 | .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \ |
142 | .enable_bit[0] = (ebit0), \ | |
143 | .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ | |
f4647037 | 144 | .enable_bit[1] = (ebit1), |
64db657b | 145 | |
7c7fac30 | 146 | #define TPS6586X_LDO(_id, _pname, vdata, vreg, shift, nbits, \ |
49610235 | 147 | ereg0, ebit0, ereg1, ebit1) \ |
64db657b | 148 | { \ |
7c7fac30 | 149 | TPS6586X_REGULATOR(_id, _pname, vdata, vreg, shift, nbits, \ |
d645d591 | 150 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ |
64db657b | 151 | } |
49610235 | 152 | |
7c7fac30 | 153 | #define TPS6586X_DVM(_id, _pname, vdata, vreg, shift, nbits, \ |
49610235 | 154 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
64db657b | 155 | { \ |
7c7fac30 | 156 | TPS6586X_REGULATOR(_id, _pname, vdata, vreg, shift, nbits, \ |
d645d591 | 157 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
64db657b | 158 | } |
49610235 | 159 | |
9394b80c LD |
160 | #define TPS6586X_SYS_REGULATOR() \ |
161 | { \ | |
162 | .desc = { \ | |
163 | .supply_name = "sys", \ | |
164 | .name = "REG-SYS", \ | |
165 | .ops = &tps6586x_sys_regulator_ops, \ | |
166 | .type = REGULATOR_VOLTAGE, \ | |
167 | .id = TPS6586X_ID_SYS, \ | |
168 | .owner = THIS_MODULE, \ | |
169 | }, \ | |
170 | } | |
171 | ||
49610235 | 172 | static struct tps6586x_regulator tps6586x_regulator[] = { |
9394b80c | 173 | TPS6586X_SYS_REGULATOR(), |
844a4f0d SA |
174 | TPS6586X_LDO(LDO_0, "vinldo01", tps6586x_ldo0, SUPPLYV1, 5, 3, ENC, 0, |
175 | END, 0), | |
176 | TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo, SUPPLYV4, 0, 3, ENC, 2, | |
177 | END, 2), | |
178 | TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo, SUPPLYV6, 0, 3, ENE, 6, | |
179 | ENE, 6), | |
180 | TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo, SUPPLYV3, 0, 3, ENC, 4, | |
181 | END, 4), | |
182 | TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo, SUPPLYV3, 3, 3, ENC, 5, | |
183 | END, 5), | |
184 | TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo, SUPPLYV2, 5, 3, ENC, 6, | |
185 | END, 6), | |
186 | TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo, SUPPLYV6, 3, 3, ENE, 7, | |
187 | ENE, 7), | |
188 | TPS6586X_LDO(LDO_RTC, "REG-SYS", tps6586x_ldo, SUPPLYV4, 3, 3, V4, 7, | |
189 | V4, 7), | |
190 | TPS6586X_LDO(LDO_1, "vinldo01", tps6586x_dvm, SUPPLYV1, 0, 5, ENC, 1, | |
191 | END, 1), | |
192 | TPS6586X_LDO(SM_2, "vin-sm2", tps6586x_sm2, SUPPLYV2, 0, 5, ENC, 7, | |
193 | END, 7), | |
194 | ||
195 | TPS6586X_DVM(LDO_2, "vinldo23", tps6586x_dvm, LDO2BV1, 0, 5, ENA, 3, | |
d645d591 | 196 | ENB, 3, TPS6586X_VCC2, BIT(6)), |
844a4f0d | 197 | TPS6586X_DVM(LDO_4, "vinldo4", tps6586x_ldo4, LDO4V1, 0, 5, ENC, 3, |
d645d591 | 198 | END, 3, TPS6586X_VCC1, BIT(6)), |
844a4f0d | 199 | TPS6586X_DVM(SM_0, "vin-sm0", tps6586x_dvm, SM0V1, 0, 5, ENA, 1, |
d645d591 | 200 | ENB, 1, TPS6586X_VCC1, BIT(2)), |
844a4f0d | 201 | TPS6586X_DVM(SM_1, "vin-sm1", tps6586x_dvm, SM1V1, 0, 5, ENA, 0, |
d645d591 | 202 | ENB, 0, TPS6586X_VCC1, BIT(0)), |
49610235 MR |
203 | }; |
204 | ||
844a4f0d SA |
205 | static struct tps6586x_regulator tps658623_regulator[] = { |
206 | TPS6586X_LDO(SM_2, "vin-sm2", tps658623_sm2, SUPPLYV2, 0, 5, ENC, 7, | |
207 | END, 7), | |
208 | }; | |
209 | ||
210 | static struct tps6586x_regulator tps658643_regulator[] = { | |
211 | TPS6586X_LDO(SM_2, "vin-sm2", tps658643_sm2, SUPPLYV2, 0, 5, ENC, 7, | |
212 | END, 7), | |
213 | }; | |
214 | ||
49610235 MR |
215 | /* |
216 | * TPS6586X has 2 enable bits that are OR'ed to determine the actual | |
217 | * regulator state. Clearing one of this bits allows switching | |
218 | * regulator on and of with single register write. | |
219 | */ | |
220 | static inline int tps6586x_regulator_preinit(struct device *parent, | |
221 | struct tps6586x_regulator *ri) | |
222 | { | |
223 | uint8_t val1, val2; | |
224 | int ret; | |
225 | ||
1dbcf35c DH |
226 | if (ri->enable_reg[0] == ri->enable_reg[1] && |
227 | ri->enable_bit[0] == ri->enable_bit[1]) | |
228 | return 0; | |
229 | ||
49610235 MR |
230 | ret = tps6586x_read(parent, ri->enable_reg[0], &val1); |
231 | if (ret) | |
232 | return ret; | |
233 | ||
234 | ret = tps6586x_read(parent, ri->enable_reg[1], &val2); | |
235 | if (ret) | |
236 | return ret; | |
237 | ||
4f586707 | 238 | if (!(val2 & (1 << ri->enable_bit[1]))) |
49610235 MR |
239 | return 0; |
240 | ||
241 | /* | |
242 | * The regulator is on, but it's enabled with the bit we don't | |
243 | * want to use, so we switch the enable bits | |
244 | */ | |
4f586707 | 245 | if (!(val1 & (1 << ri->enable_bit[0]))) { |
49610235 MR |
246 | ret = tps6586x_set_bits(parent, ri->enable_reg[0], |
247 | 1 << ri->enable_bit[0]); | |
248 | if (ret) | |
249 | return ret; | |
250 | } | |
251 | ||
252 | return tps6586x_clr_bits(parent, ri->enable_reg[1], | |
253 | 1 << ri->enable_bit[1]); | |
254 | } | |
255 | ||
64e48160 LD |
256 | static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev, |
257 | int id, struct regulator_init_data *p) | |
500c524a XX |
258 | { |
259 | struct device *parent = pdev->dev.parent; | |
500c524a XX |
260 | struct tps6586x_settings *setting = p->driver_data; |
261 | uint8_t reg; | |
262 | ||
263 | if (setting == NULL) | |
264 | return 0; | |
265 | ||
266 | if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET)) | |
267 | return 0; | |
268 | ||
269 | /* only SM0 and SM1 can have the slew rate settings */ | |
64e48160 | 270 | switch (id) { |
500c524a XX |
271 | case TPS6586X_ID_SM_0: |
272 | reg = TPS6586X_SM0SL; | |
273 | break; | |
274 | case TPS6586X_ID_SM_1: | |
275 | reg = TPS6586X_SM1SL; | |
276 | break; | |
277 | default: | |
6673d66e | 278 | dev_err(&pdev->dev, "Only SM0/SM1 can set slew rate\n"); |
500c524a XX |
279 | return -EINVAL; |
280 | } | |
281 | ||
282 | return tps6586x_write(parent, reg, | |
283 | setting->slew_rate & TPS6586X_SLEW_RATE_MASK); | |
284 | } | |
285 | ||
844a4f0d | 286 | static struct tps6586x_regulator *find_regulator_info(int id, int version) |
49610235 MR |
287 | { |
288 | struct tps6586x_regulator *ri; | |
844a4f0d SA |
289 | struct tps6586x_regulator *table = NULL; |
290 | int num; | |
49610235 MR |
291 | int i; |
292 | ||
844a4f0d SA |
293 | switch (version) { |
294 | case TPS658623: | |
295 | table = tps658623_regulator; | |
296 | num = ARRAY_SIZE(tps658623_regulator); | |
297 | break; | |
298 | case TPS658643: | |
299 | table = tps658643_regulator; | |
300 | num = ARRAY_SIZE(tps658643_regulator); | |
301 | break; | |
302 | } | |
303 | ||
304 | /* Search version specific table first */ | |
305 | if (table) { | |
306 | for (i = 0; i < num; i++) { | |
307 | ri = &table[i]; | |
308 | if (ri->desc.id == id) | |
309 | return ri; | |
310 | } | |
311 | } | |
312 | ||
49610235 MR |
313 | for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) { |
314 | ri = &tps6586x_regulator[i]; | |
315 | if (ri->desc.id == id) | |
316 | return ri; | |
317 | } | |
318 | return NULL; | |
319 | } | |
320 | ||
64e48160 LD |
321 | #ifdef CONFIG_OF |
322 | static struct of_regulator_match tps6586x_matches[] = { | |
323 | { .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS }, | |
324 | { .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 }, | |
325 | { .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 }, | |
326 | { .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 }, | |
327 | { .name = "ldo0", .driver_data = (void *)TPS6586X_ID_LDO_0 }, | |
328 | { .name = "ldo1", .driver_data = (void *)TPS6586X_ID_LDO_1 }, | |
329 | { .name = "ldo2", .driver_data = (void *)TPS6586X_ID_LDO_2 }, | |
330 | { .name = "ldo3", .driver_data = (void *)TPS6586X_ID_LDO_3 }, | |
331 | { .name = "ldo4", .driver_data = (void *)TPS6586X_ID_LDO_4 }, | |
332 | { .name = "ldo5", .driver_data = (void *)TPS6586X_ID_LDO_5 }, | |
333 | { .name = "ldo6", .driver_data = (void *)TPS6586X_ID_LDO_6 }, | |
334 | { .name = "ldo7", .driver_data = (void *)TPS6586X_ID_LDO_7 }, | |
335 | { .name = "ldo8", .driver_data = (void *)TPS6586X_ID_LDO_8 }, | |
336 | { .name = "ldo9", .driver_data = (void *)TPS6586X_ID_LDO_9 }, | |
337 | { .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC }, | |
338 | }; | |
339 | ||
340 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
341 | struct platform_device *pdev, | |
342 | struct of_regulator_match **tps6586x_reg_matches) | |
343 | { | |
344 | const unsigned int num = ARRAY_SIZE(tps6586x_matches); | |
345 | struct device_node *np = pdev->dev.parent->of_node; | |
346 | struct device_node *regs; | |
347 | const char *sys_rail = NULL; | |
348 | unsigned int i; | |
349 | struct tps6586x_platform_data *pdata; | |
350 | int err; | |
351 | ||
712c967f | 352 | regs = of_get_child_by_name(np, "regulators"); |
64e48160 LD |
353 | if (!regs) { |
354 | dev_err(&pdev->dev, "regulator node not found\n"); | |
355 | return NULL; | |
356 | } | |
357 | ||
358 | err = of_regulator_match(&pdev->dev, regs, tps6586x_matches, num); | |
0a4cccaa | 359 | of_node_put(regs); |
64e48160 LD |
360 | if (err < 0) { |
361 | dev_err(&pdev->dev, "Regulator match failed, e %d\n", err); | |
64e48160 LD |
362 | return NULL; |
363 | } | |
364 | ||
64e48160 LD |
365 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
366 | if (!pdata) { | |
367 | dev_err(&pdev->dev, "Memory alloction failed\n"); | |
368 | return NULL; | |
369 | } | |
370 | ||
371 | for (i = 0; i < num; i++) { | |
372 | int id; | |
373 | if (!tps6586x_matches[i].init_data) | |
374 | continue; | |
375 | ||
376 | pdata->reg_init_data[i] = tps6586x_matches[i].init_data; | |
377 | id = (int)tps6586x_matches[i].driver_data; | |
378 | if (id == TPS6586X_ID_SYS) | |
379 | sys_rail = pdata->reg_init_data[i]->constraints.name; | |
380 | ||
381 | if ((id == TPS6586X_ID_LDO_5) || (id == TPS6586X_ID_LDO_RTC)) | |
382 | pdata->reg_init_data[i]->supply_regulator = sys_rail; | |
383 | } | |
384 | *tps6586x_reg_matches = tps6586x_matches; | |
385 | return pdata; | |
386 | } | |
387 | #else | |
388 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
389 | struct platform_device *pdev, | |
390 | struct of_regulator_match **tps6586x_reg_matches) | |
391 | { | |
392 | *tps6586x_reg_matches = NULL; | |
393 | return NULL; | |
394 | } | |
395 | #endif | |
396 | ||
a5023574 | 397 | static int tps6586x_regulator_probe(struct platform_device *pdev) |
49610235 MR |
398 | { |
399 | struct tps6586x_regulator *ri = NULL; | |
c172708d | 400 | struct regulator_config config = { }; |
64e48160 LD |
401 | struct regulator_dev **rdev; |
402 | struct regulator_init_data *reg_data; | |
403 | struct tps6586x_platform_data *pdata; | |
404 | struct of_regulator_match *tps6586x_reg_matches = NULL; | |
844a4f0d | 405 | int version; |
64e48160 | 406 | int id; |
49610235 MR |
407 | int err; |
408 | ||
10835600 | 409 | dev_dbg(&pdev->dev, "Probing regulator\n"); |
49610235 | 410 | |
64e48160 LD |
411 | pdata = dev_get_platdata(pdev->dev.parent); |
412 | if ((!pdata) && (pdev->dev.parent->of_node)) | |
413 | pdata = tps6586x_parse_regulator_dt(pdev, | |
414 | &tps6586x_reg_matches); | |
49610235 | 415 | |
64e48160 LD |
416 | if (!pdata) { |
417 | dev_err(&pdev->dev, "Platform data not available, exiting\n"); | |
418 | return -ENODEV; | |
419 | } | |
49610235 | 420 | |
64e48160 LD |
421 | rdev = devm_kzalloc(&pdev->dev, TPS6586X_ID_MAX_REGULATOR * |
422 | sizeof(*rdev), GFP_KERNEL); | |
423 | if (!rdev) { | |
424 | dev_err(&pdev->dev, "Mmemory alloc failed\n"); | |
425 | return -ENOMEM; | |
426 | } | |
c172708d | 427 | |
844a4f0d SA |
428 | version = tps6586x_get_version(pdev->dev.parent); |
429 | ||
64e48160 LD |
430 | for (id = 0; id < TPS6586X_ID_MAX_REGULATOR; ++id) { |
431 | reg_data = pdata->reg_init_data[id]; | |
432 | ||
844a4f0d SA |
433 | ri = find_regulator_info(id, version); |
434 | ||
64e48160 LD |
435 | if (!ri) { |
436 | dev_err(&pdev->dev, "invalid regulator ID specified\n"); | |
884ea557 | 437 | return -EINVAL; |
64e48160 LD |
438 | } |
439 | ||
440 | err = tps6586x_regulator_preinit(pdev->dev.parent, ri); | |
441 | if (err) { | |
442 | dev_err(&pdev->dev, | |
443 | "regulator %d preinit failed, e %d\n", id, err); | |
884ea557 | 444 | return err; |
64e48160 LD |
445 | } |
446 | ||
447 | config.dev = pdev->dev.parent; | |
448 | config.init_data = reg_data; | |
449 | config.driver_data = ri; | |
450 | ||
451 | if (tps6586x_reg_matches) | |
452 | config.of_node = tps6586x_reg_matches[id].of_node; | |
453 | ||
884ea557 SK |
454 | rdev[id] = devm_regulator_register(&pdev->dev, &ri->desc, |
455 | &config); | |
64e48160 LD |
456 | if (IS_ERR(rdev[id])) { |
457 | dev_err(&pdev->dev, "failed to register regulator %s\n", | |
458 | ri->desc.name); | |
884ea557 | 459 | return PTR_ERR(rdev[id]); |
64e48160 LD |
460 | } |
461 | ||
462 | if (reg_data) { | |
463 | err = tps6586x_regulator_set_slew_rate(pdev, id, | |
464 | reg_data); | |
465 | if (err < 0) { | |
466 | dev_err(&pdev->dev, | |
467 | "Slew rate config failed, e %d\n", err); | |
884ea557 | 468 | return err; |
64e48160 LD |
469 | } |
470 | } | |
49610235 MR |
471 | } |
472 | ||
e7973c3c | 473 | platform_set_drvdata(pdev, rdev); |
64e48160 | 474 | return 0; |
49610235 MR |
475 | } |
476 | ||
477 | static struct platform_driver tps6586x_regulator_driver = { | |
478 | .driver = { | |
ec8da805 | 479 | .name = "tps6586x-regulator", |
49610235 MR |
480 | .owner = THIS_MODULE, |
481 | }, | |
482 | .probe = tps6586x_regulator_probe, | |
49610235 MR |
483 | }; |
484 | ||
485 | static int __init tps6586x_regulator_init(void) | |
486 | { | |
487 | return platform_driver_register(&tps6586x_regulator_driver); | |
488 | } | |
489 | subsys_initcall(tps6586x_regulator_init); | |
490 | ||
491 | static void __exit tps6586x_regulator_exit(void) | |
492 | { | |
493 | platform_driver_unregister(&tps6586x_regulator_driver); | |
494 | } | |
495 | module_exit(tps6586x_regulator_exit); | |
496 | ||
497 | MODULE_LICENSE("GPL"); | |
498 | MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); | |
499 | MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC"); | |
500 | MODULE_ALIAS("platform:tps6586x-regulator"); |