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Commit | Line | Data |
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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 | ||
f4647037 AL |
96 | static const unsigned int tps6586x_ldo_voltages[] = { |
97 | 1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, | |
49610235 MR |
98 | }; |
99 | ||
f4647037 AL |
100 | static const unsigned int tps6586x_sm2_voltages[] = { |
101 | 3000000, 3050000, 3100000, 3150000, 3200000, 3250000, 3300000, 3350000, | |
102 | 3400000, 3450000, 3500000, 3550000, 3600000, 3650000, 3700000, 3750000, | |
103 | 3800000, 3850000, 3900000, 3950000, 4000000, 4050000, 4100000, 4150000, | |
104 | 4200000, 4250000, 4300000, 4350000, 4400000, 4450000, 4500000, 4550000, | |
4cc2e393 GK |
105 | }; |
106 | ||
f4647037 AL |
107 | static const unsigned int tps6586x_dvm_voltages[] = { |
108 | 725000, 750000, 775000, 800000, 825000, 850000, 875000, 900000, | |
109 | 925000, 950000, 975000, 1000000, 1025000, 1050000, 1075000, 1100000, | |
110 | 1125000, 1150000, 1175000, 1200000, 1225000, 1250000, 1275000, 1300000, | |
111 | 1325000, 1350000, 1375000, 1400000, 1425000, 1450000, 1475000, 1500000, | |
49610235 MR |
112 | }; |
113 | ||
7c7fac30 | 114 | #define TPS6586X_REGULATOR(_id, _pin_name, vdata, vreg, shift, nbits, \ |
d645d591 | 115 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
49610235 | 116 | .desc = { \ |
7c7fac30 | 117 | .supply_name = _pin_name, \ |
49610235 | 118 | .name = "REG-" #_id, \ |
e1816235 | 119 | .ops = &tps6586x_regulator_ops, \ |
49610235 MR |
120 | .type = REGULATOR_VOLTAGE, \ |
121 | .id = TPS6586X_ID_##_id, \ | |
122 | .n_voltages = ARRAY_SIZE(tps6586x_##vdata##_voltages), \ | |
f4647037 | 123 | .volt_table = tps6586x_##vdata##_voltages, \ |
49610235 | 124 | .owner = THIS_MODULE, \ |
7c7475c0 AL |
125 | .enable_reg = TPS6586X_SUPPLY##ereg0, \ |
126 | .enable_mask = 1 << (ebit0), \ | |
127 | .vsel_reg = TPS6586X_##vreg, \ | |
128 | .vsel_mask = ((1 << (nbits)) - 1) << (shift), \ | |
d645d591 AL |
129 | .apply_reg = (goreg), \ |
130 | .apply_bit = (gobit), \ | |
49610235 | 131 | }, \ |
49610235 MR |
132 | .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \ |
133 | .enable_bit[0] = (ebit0), \ | |
134 | .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ | |
f4647037 | 135 | .enable_bit[1] = (ebit1), |
64db657b | 136 | |
7c7fac30 | 137 | #define TPS6586X_LDO(_id, _pname, vdata, vreg, shift, nbits, \ |
49610235 | 138 | ereg0, ebit0, ereg1, ebit1) \ |
64db657b | 139 | { \ |
7c7fac30 | 140 | TPS6586X_REGULATOR(_id, _pname, vdata, vreg, shift, nbits, \ |
d645d591 | 141 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ |
64db657b | 142 | } |
49610235 | 143 | |
7c7fac30 | 144 | #define TPS6586X_DVM(_id, _pname, vdata, vreg, shift, nbits, \ |
49610235 | 145 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
64db657b | 146 | { \ |
7c7fac30 | 147 | TPS6586X_REGULATOR(_id, _pname, vdata, vreg, shift, nbits, \ |
d645d591 | 148 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
64db657b | 149 | } |
49610235 | 150 | |
9394b80c LD |
151 | #define TPS6586X_SYS_REGULATOR() \ |
152 | { \ | |
153 | .desc = { \ | |
154 | .supply_name = "sys", \ | |
155 | .name = "REG-SYS", \ | |
156 | .ops = &tps6586x_sys_regulator_ops, \ | |
157 | .type = REGULATOR_VOLTAGE, \ | |
158 | .id = TPS6586X_ID_SYS, \ | |
159 | .owner = THIS_MODULE, \ | |
160 | }, \ | |
161 | } | |
162 | ||
49610235 | 163 | static struct tps6586x_regulator tps6586x_regulator[] = { |
9394b80c | 164 | TPS6586X_SYS_REGULATOR(), |
7c7fac30 LD |
165 | TPS6586X_LDO(LDO_0, "vinldo01", ldo0, SUPPLYV1, 5, 3, ENC, 0, END, 0), |
166 | TPS6586X_LDO(LDO_3, "vinldo23", ldo, SUPPLYV4, 0, 3, ENC, 2, END, 2), | |
9394b80c | 167 | TPS6586X_LDO(LDO_5, "REG-SYS", ldo, SUPPLYV6, 0, 3, ENE, 6, ENE, 6), |
7c7fac30 LD |
168 | TPS6586X_LDO(LDO_6, "vinldo678", ldo, SUPPLYV3, 0, 3, ENC, 4, END, 4), |
169 | TPS6586X_LDO(LDO_7, "vinldo678", ldo, SUPPLYV3, 3, 3, ENC, 5, END, 5), | |
170 | TPS6586X_LDO(LDO_8, "vinldo678", ldo, SUPPLYV2, 5, 3, ENC, 6, END, 6), | |
171 | TPS6586X_LDO(LDO_9, "vinldo9", ldo, SUPPLYV6, 3, 3, ENE, 7, ENE, 7), | |
9394b80c | 172 | TPS6586X_LDO(LDO_RTC, "REG-SYS", ldo, SUPPLYV4, 3, 3, V4, 7, V4, 7), |
7c7fac30 | 173 | TPS6586X_LDO(LDO_1, "vinldo01", dvm, SUPPLYV1, 0, 5, ENC, 1, END, 1), |
7f852e05 | 174 | TPS6586X_LDO(SM_2, "vin-sm2", sm2, SUPPLYV2, 0, 5, ENC, 7, END, 7), |
7c7fac30 LD |
175 | |
176 | TPS6586X_DVM(LDO_2, "vinldo23", dvm, LDO2BV1, 0, 5, ENA, 3, | |
d645d591 | 177 | ENB, 3, TPS6586X_VCC2, BIT(6)), |
7c7fac30 | 178 | TPS6586X_DVM(LDO_4, "vinldo4", ldo4, LDO4V1, 0, 5, ENC, 3, |
d645d591 | 179 | END, 3, TPS6586X_VCC1, BIT(6)), |
7f852e05 | 180 | TPS6586X_DVM(SM_0, "vin-sm0", dvm, SM0V1, 0, 5, ENA, 1, |
d645d591 | 181 | ENB, 1, TPS6586X_VCC1, BIT(2)), |
7f852e05 | 182 | TPS6586X_DVM(SM_1, "vin-sm1", dvm, SM1V1, 0, 5, ENA, 0, |
d645d591 | 183 | ENB, 0, TPS6586X_VCC1, BIT(0)), |
49610235 MR |
184 | }; |
185 | ||
186 | /* | |
187 | * TPS6586X has 2 enable bits that are OR'ed to determine the actual | |
188 | * regulator state. Clearing one of this bits allows switching | |
189 | * regulator on and of with single register write. | |
190 | */ | |
191 | static inline int tps6586x_regulator_preinit(struct device *parent, | |
192 | struct tps6586x_regulator *ri) | |
193 | { | |
194 | uint8_t val1, val2; | |
195 | int ret; | |
196 | ||
1dbcf35c DH |
197 | if (ri->enable_reg[0] == ri->enable_reg[1] && |
198 | ri->enable_bit[0] == ri->enable_bit[1]) | |
199 | return 0; | |
200 | ||
49610235 MR |
201 | ret = tps6586x_read(parent, ri->enable_reg[0], &val1); |
202 | if (ret) | |
203 | return ret; | |
204 | ||
205 | ret = tps6586x_read(parent, ri->enable_reg[1], &val2); | |
206 | if (ret) | |
207 | return ret; | |
208 | ||
4f586707 | 209 | if (!(val2 & (1 << ri->enable_bit[1]))) |
49610235 MR |
210 | return 0; |
211 | ||
212 | /* | |
213 | * The regulator is on, but it's enabled with the bit we don't | |
214 | * want to use, so we switch the enable bits | |
215 | */ | |
4f586707 | 216 | if (!(val1 & (1 << ri->enable_bit[0]))) { |
49610235 MR |
217 | ret = tps6586x_set_bits(parent, ri->enable_reg[0], |
218 | 1 << ri->enable_bit[0]); | |
219 | if (ret) | |
220 | return ret; | |
221 | } | |
222 | ||
223 | return tps6586x_clr_bits(parent, ri->enable_reg[1], | |
224 | 1 << ri->enable_bit[1]); | |
225 | } | |
226 | ||
64e48160 LD |
227 | static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev, |
228 | int id, struct regulator_init_data *p) | |
500c524a XX |
229 | { |
230 | struct device *parent = pdev->dev.parent; | |
500c524a XX |
231 | struct tps6586x_settings *setting = p->driver_data; |
232 | uint8_t reg; | |
233 | ||
234 | if (setting == NULL) | |
235 | return 0; | |
236 | ||
237 | if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET)) | |
238 | return 0; | |
239 | ||
240 | /* only SM0 and SM1 can have the slew rate settings */ | |
64e48160 | 241 | switch (id) { |
500c524a XX |
242 | case TPS6586X_ID_SM_0: |
243 | reg = TPS6586X_SM0SL; | |
244 | break; | |
245 | case TPS6586X_ID_SM_1: | |
246 | reg = TPS6586X_SM1SL; | |
247 | break; | |
248 | default: | |
6673d66e | 249 | dev_err(&pdev->dev, "Only SM0/SM1 can set slew rate\n"); |
500c524a XX |
250 | return -EINVAL; |
251 | } | |
252 | ||
253 | return tps6586x_write(parent, reg, | |
254 | setting->slew_rate & TPS6586X_SLEW_RATE_MASK); | |
255 | } | |
256 | ||
49610235 MR |
257 | static inline struct tps6586x_regulator *find_regulator_info(int id) |
258 | { | |
259 | struct tps6586x_regulator *ri; | |
260 | int i; | |
261 | ||
262 | for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) { | |
263 | ri = &tps6586x_regulator[i]; | |
264 | if (ri->desc.id == id) | |
265 | return ri; | |
266 | } | |
267 | return NULL; | |
268 | } | |
269 | ||
64e48160 LD |
270 | #ifdef CONFIG_OF |
271 | static struct of_regulator_match tps6586x_matches[] = { | |
272 | { .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS }, | |
273 | { .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 }, | |
274 | { .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 }, | |
275 | { .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 }, | |
276 | { .name = "ldo0", .driver_data = (void *)TPS6586X_ID_LDO_0 }, | |
277 | { .name = "ldo1", .driver_data = (void *)TPS6586X_ID_LDO_1 }, | |
278 | { .name = "ldo2", .driver_data = (void *)TPS6586X_ID_LDO_2 }, | |
279 | { .name = "ldo3", .driver_data = (void *)TPS6586X_ID_LDO_3 }, | |
280 | { .name = "ldo4", .driver_data = (void *)TPS6586X_ID_LDO_4 }, | |
281 | { .name = "ldo5", .driver_data = (void *)TPS6586X_ID_LDO_5 }, | |
282 | { .name = "ldo6", .driver_data = (void *)TPS6586X_ID_LDO_6 }, | |
283 | { .name = "ldo7", .driver_data = (void *)TPS6586X_ID_LDO_7 }, | |
284 | { .name = "ldo8", .driver_data = (void *)TPS6586X_ID_LDO_8 }, | |
285 | { .name = "ldo9", .driver_data = (void *)TPS6586X_ID_LDO_9 }, | |
286 | { .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC }, | |
287 | }; | |
288 | ||
289 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
290 | struct platform_device *pdev, | |
291 | struct of_regulator_match **tps6586x_reg_matches) | |
292 | { | |
293 | const unsigned int num = ARRAY_SIZE(tps6586x_matches); | |
294 | struct device_node *np = pdev->dev.parent->of_node; | |
295 | struct device_node *regs; | |
296 | const char *sys_rail = NULL; | |
297 | unsigned int i; | |
298 | struct tps6586x_platform_data *pdata; | |
299 | int err; | |
300 | ||
301 | regs = of_find_node_by_name(np, "regulators"); | |
302 | if (!regs) { | |
303 | dev_err(&pdev->dev, "regulator node not found\n"); | |
304 | return NULL; | |
305 | } | |
306 | ||
307 | err = of_regulator_match(&pdev->dev, regs, tps6586x_matches, num); | |
0a4cccaa | 308 | of_node_put(regs); |
64e48160 LD |
309 | if (err < 0) { |
310 | dev_err(&pdev->dev, "Regulator match failed, e %d\n", err); | |
64e48160 LD |
311 | return NULL; |
312 | } | |
313 | ||
64e48160 LD |
314 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
315 | if (!pdata) { | |
316 | dev_err(&pdev->dev, "Memory alloction failed\n"); | |
317 | return NULL; | |
318 | } | |
319 | ||
320 | for (i = 0; i < num; i++) { | |
321 | int id; | |
322 | if (!tps6586x_matches[i].init_data) | |
323 | continue; | |
324 | ||
325 | pdata->reg_init_data[i] = tps6586x_matches[i].init_data; | |
326 | id = (int)tps6586x_matches[i].driver_data; | |
327 | if (id == TPS6586X_ID_SYS) | |
328 | sys_rail = pdata->reg_init_data[i]->constraints.name; | |
329 | ||
330 | if ((id == TPS6586X_ID_LDO_5) || (id == TPS6586X_ID_LDO_RTC)) | |
331 | pdata->reg_init_data[i]->supply_regulator = sys_rail; | |
332 | } | |
333 | *tps6586x_reg_matches = tps6586x_matches; | |
334 | return pdata; | |
335 | } | |
336 | #else | |
337 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
338 | struct platform_device *pdev, | |
339 | struct of_regulator_match **tps6586x_reg_matches) | |
340 | { | |
341 | *tps6586x_reg_matches = NULL; | |
342 | return NULL; | |
343 | } | |
344 | #endif | |
345 | ||
a5023574 | 346 | static int tps6586x_regulator_probe(struct platform_device *pdev) |
49610235 MR |
347 | { |
348 | struct tps6586x_regulator *ri = NULL; | |
c172708d | 349 | struct regulator_config config = { }; |
64e48160 LD |
350 | struct regulator_dev **rdev; |
351 | struct regulator_init_data *reg_data; | |
352 | struct tps6586x_platform_data *pdata; | |
353 | struct of_regulator_match *tps6586x_reg_matches = NULL; | |
354 | int id; | |
49610235 MR |
355 | int err; |
356 | ||
10835600 | 357 | dev_dbg(&pdev->dev, "Probing regulator\n"); |
49610235 | 358 | |
64e48160 LD |
359 | pdata = dev_get_platdata(pdev->dev.parent); |
360 | if ((!pdata) && (pdev->dev.parent->of_node)) | |
361 | pdata = tps6586x_parse_regulator_dt(pdev, | |
362 | &tps6586x_reg_matches); | |
49610235 | 363 | |
64e48160 LD |
364 | if (!pdata) { |
365 | dev_err(&pdev->dev, "Platform data not available, exiting\n"); | |
366 | return -ENODEV; | |
367 | } | |
49610235 | 368 | |
64e48160 LD |
369 | rdev = devm_kzalloc(&pdev->dev, TPS6586X_ID_MAX_REGULATOR * |
370 | sizeof(*rdev), GFP_KERNEL); | |
371 | if (!rdev) { | |
372 | dev_err(&pdev->dev, "Mmemory alloc failed\n"); | |
373 | return -ENOMEM; | |
374 | } | |
c172708d | 375 | |
64e48160 LD |
376 | for (id = 0; id < TPS6586X_ID_MAX_REGULATOR; ++id) { |
377 | reg_data = pdata->reg_init_data[id]; | |
378 | ||
379 | ri = find_regulator_info(id); | |
380 | if (!ri) { | |
381 | dev_err(&pdev->dev, "invalid regulator ID specified\n"); | |
382 | err = -EINVAL; | |
383 | goto fail; | |
384 | } | |
385 | ||
386 | err = tps6586x_regulator_preinit(pdev->dev.parent, ri); | |
387 | if (err) { | |
388 | dev_err(&pdev->dev, | |
389 | "regulator %d preinit failed, e %d\n", id, err); | |
390 | goto fail; | |
391 | } | |
392 | ||
393 | config.dev = pdev->dev.parent; | |
394 | config.init_data = reg_data; | |
395 | config.driver_data = ri; | |
396 | ||
397 | if (tps6586x_reg_matches) | |
398 | config.of_node = tps6586x_reg_matches[id].of_node; | |
399 | ||
400 | rdev[id] = regulator_register(&ri->desc, &config); | |
401 | if (IS_ERR(rdev[id])) { | |
402 | dev_err(&pdev->dev, "failed to register regulator %s\n", | |
403 | ri->desc.name); | |
404 | err = PTR_ERR(rdev[id]); | |
405 | goto fail; | |
406 | } | |
407 | ||
408 | if (reg_data) { | |
409 | err = tps6586x_regulator_set_slew_rate(pdev, id, | |
410 | reg_data); | |
411 | if (err < 0) { | |
412 | dev_err(&pdev->dev, | |
413 | "Slew rate config failed, e %d\n", err); | |
414 | regulator_unregister(rdev[id]); | |
415 | goto fail; | |
416 | } | |
417 | } | |
49610235 MR |
418 | } |
419 | ||
e7973c3c | 420 | platform_set_drvdata(pdev, rdev); |
64e48160 | 421 | return 0; |
49610235 | 422 | |
64e48160 LD |
423 | fail: |
424 | while (--id >= 0) | |
425 | regulator_unregister(rdev[id]); | |
426 | return err; | |
49610235 MR |
427 | } |
428 | ||
8dc995f5 | 429 | static int tps6586x_regulator_remove(struct platform_device *pdev) |
49610235 | 430 | { |
64e48160 LD |
431 | struct regulator_dev **rdev = platform_get_drvdata(pdev); |
432 | int id = TPS6586X_ID_MAX_REGULATOR; | |
433 | ||
434 | while (--id >= 0) | |
435 | regulator_unregister(rdev[id]); | |
e7973c3c | 436 | |
49610235 MR |
437 | return 0; |
438 | } | |
439 | ||
440 | static struct platform_driver tps6586x_regulator_driver = { | |
441 | .driver = { | |
ec8da805 | 442 | .name = "tps6586x-regulator", |
49610235 MR |
443 | .owner = THIS_MODULE, |
444 | }, | |
445 | .probe = tps6586x_regulator_probe, | |
5eb9f2b9 | 446 | .remove = tps6586x_regulator_remove, |
49610235 MR |
447 | }; |
448 | ||
449 | static int __init tps6586x_regulator_init(void) | |
450 | { | |
451 | return platform_driver_register(&tps6586x_regulator_driver); | |
452 | } | |
453 | subsys_initcall(tps6586x_regulator_init); | |
454 | ||
455 | static void __exit tps6586x_regulator_exit(void) | |
456 | { | |
457 | platform_driver_unregister(&tps6586x_regulator_driver); | |
458 | } | |
459 | module_exit(tps6586x_regulator_exit); | |
460 | ||
461 | MODULE_LICENSE("GPL"); | |
462 | MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); | |
463 | MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC"); | |
464 | MODULE_ALIAS("platform:tps6586x-regulator"); |