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 | ||
ad0b40fe | 66 | static struct regulator_ops tps6586x_rw_regulator_ops = { |
f4647037 | 67 | .list_voltage = regulator_list_voltage_table, |
4d673bbc | 68 | .map_voltage = regulator_map_voltage_ascend, |
7c7475c0 | 69 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
d645d591 | 70 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
49610235 | 71 | |
7c7475c0 AL |
72 | .is_enabled = regulator_is_enabled_regmap, |
73 | .enable = regulator_enable_regmap, | |
74 | .disable = regulator_disable_regmap, | |
49610235 MR |
75 | }; |
76 | ||
2628b100 AL |
77 | static struct regulator_ops tps6586x_rw_linear_regulator_ops = { |
78 | .list_voltage = regulator_list_voltage_linear, | |
79 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
80 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
81 | ||
82 | .is_enabled = regulator_is_enabled_regmap, | |
83 | .enable = regulator_enable_regmap, | |
84 | .disable = regulator_disable_regmap, | |
85 | }; | |
86 | ||
ad0b40fe AB |
87 | static struct regulator_ops tps6586x_ro_regulator_ops = { |
88 | .list_voltage = regulator_list_voltage_table, | |
89 | .map_voltage = regulator_map_voltage_ascend, | |
90 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
91 | ||
92 | .is_enabled = regulator_is_enabled_regmap, | |
93 | .enable = regulator_enable_regmap, | |
94 | .disable = regulator_disable_regmap, | |
95 | }; | |
96 | ||
9394b80c | 97 | static struct regulator_ops tps6586x_sys_regulator_ops = { |
49610235 MR |
98 | }; |
99 | ||
f4647037 AL |
100 | static const unsigned int tps6586x_ldo0_voltages[] = { |
101 | 1200000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, | |
102 | }; | |
103 | ||
f4647037 AL |
104 | static const unsigned int tps6586x_ldo_voltages[] = { |
105 | 1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, | |
49610235 MR |
106 | }; |
107 | ||
2628b100 | 108 | static const unsigned int tps658640_rtc_voltages[] = { |
6c46ccc8 AB |
109 | 2500000, 2850000, 3100000, 3300000, |
110 | }; | |
111 | ||
ad0b40fe | 112 | #define TPS6586X_REGULATOR(_id, _ops, _pin_name, vdata, vreg, shift, nbits, \ |
d645d591 | 113 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
49610235 | 114 | .desc = { \ |
7c7fac30 | 115 | .supply_name = _pin_name, \ |
49610235 | 116 | .name = "REG-" #_id, \ |
ad0b40fe | 117 | .ops = &tps6586x_## _ops ## _regulator_ops, \ |
49610235 MR |
118 | .type = REGULATOR_VOLTAGE, \ |
119 | .id = TPS6586X_ID_##_id, \ | |
844a4f0d SA |
120 | .n_voltages = ARRAY_SIZE(vdata##_voltages), \ |
121 | .volt_table = vdata##_voltages, \ | |
49610235 | 122 | .owner = THIS_MODULE, \ |
7c7475c0 AL |
123 | .enable_reg = TPS6586X_SUPPLY##ereg0, \ |
124 | .enable_mask = 1 << (ebit0), \ | |
125 | .vsel_reg = TPS6586X_##vreg, \ | |
126 | .vsel_mask = ((1 << (nbits)) - 1) << (shift), \ | |
d645d591 AL |
127 | .apply_reg = (goreg), \ |
128 | .apply_bit = (gobit), \ | |
49610235 | 129 | }, \ |
49610235 MR |
130 | .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \ |
131 | .enable_bit[0] = (ebit0), \ | |
132 | .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ | |
f4647037 | 133 | .enable_bit[1] = (ebit1), |
64db657b | 134 | |
2628b100 AL |
135 | #define TPS6586X_REGULATOR_LINEAR(_id, _ops, _pin_name, n_volt, min_uv, \ |
136 | uv_step, vreg, shift, nbits, ereg0, \ | |
137 | ebit0, ereg1, ebit1, goreg, gobit) \ | |
138 | .desc = { \ | |
139 | .supply_name = _pin_name, \ | |
140 | .name = "REG-" #_id, \ | |
141 | .ops = &tps6586x_## _ops ## _regulator_ops, \ | |
142 | .type = REGULATOR_VOLTAGE, \ | |
143 | .id = TPS6586X_ID_##_id, \ | |
144 | .n_voltages = n_volt, \ | |
145 | .min_uV = min_uv, \ | |
146 | .uV_step = uv_step, \ | |
147 | .owner = THIS_MODULE, \ | |
148 | .enable_reg = TPS6586X_SUPPLY##ereg0, \ | |
149 | .enable_mask = 1 << (ebit0), \ | |
150 | .vsel_reg = TPS6586X_##vreg, \ | |
151 | .vsel_mask = ((1 << (nbits)) - 1) << (shift), \ | |
152 | .apply_reg = (goreg), \ | |
153 | .apply_bit = (gobit), \ | |
154 | }, \ | |
155 | .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \ | |
156 | .enable_bit[0] = (ebit0), \ | |
157 | .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ | |
158 | .enable_bit[1] = (ebit1), | |
159 | ||
7c7fac30 | 160 | #define TPS6586X_LDO(_id, _pname, vdata, vreg, shift, nbits, \ |
49610235 | 161 | ereg0, ebit0, ereg1, ebit1) \ |
64db657b | 162 | { \ |
ad0b40fe AB |
163 | TPS6586X_REGULATOR(_id, rw, _pname, vdata, vreg, shift, nbits, \ |
164 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ | |
165 | } | |
166 | ||
2628b100 AL |
167 | #define TPS6586X_LDO_LINEAR(_id, _pname, n_volt, min_uv, uv_step, vreg, \ |
168 | shift, nbits, ereg0, ebit0, ereg1, ebit1) \ | |
169 | { \ | |
170 | TPS6586X_REGULATOR_LINEAR(_id, rw_linear, _pname, n_volt, \ | |
171 | min_uv, uv_step, vreg, shift, nbits, \ | |
172 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ | |
173 | } | |
174 | ||
ad0b40fe AB |
175 | #define TPS6586X_FIXED_LDO(_id, _pname, vdata, vreg, shift, nbits, \ |
176 | ereg0, ebit0, ereg1, ebit1) \ | |
177 | { \ | |
178 | TPS6586X_REGULATOR(_id, ro, _pname, vdata, vreg, shift, nbits, \ | |
d645d591 | 179 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ |
64db657b | 180 | } |
49610235 | 181 | |
2628b100 AL |
182 | #define TPS6586X_DVM(_id, _pname, n_volt, min_uv, uv_step, vreg, shift, \ |
183 | nbits, ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ | |
64db657b | 184 | { \ |
2628b100 AL |
185 | TPS6586X_REGULATOR_LINEAR(_id, rw_linear, _pname, n_volt, \ |
186 | min_uv, uv_step, vreg, shift, nbits, \ | |
187 | ereg0, ebit0, ereg1, ebit1, goreg, \ | |
188 | gobit) \ | |
64db657b | 189 | } |
49610235 | 190 | |
9394b80c LD |
191 | #define TPS6586X_SYS_REGULATOR() \ |
192 | { \ | |
193 | .desc = { \ | |
194 | .supply_name = "sys", \ | |
195 | .name = "REG-SYS", \ | |
196 | .ops = &tps6586x_sys_regulator_ops, \ | |
197 | .type = REGULATOR_VOLTAGE, \ | |
198 | .id = TPS6586X_ID_SYS, \ | |
199 | .owner = THIS_MODULE, \ | |
200 | }, \ | |
201 | } | |
202 | ||
49610235 | 203 | static struct tps6586x_regulator tps6586x_regulator[] = { |
9394b80c | 204 | TPS6586X_SYS_REGULATOR(), |
844a4f0d SA |
205 | TPS6586X_LDO(LDO_0, "vinldo01", tps6586x_ldo0, SUPPLYV1, 5, 3, ENC, 0, |
206 | END, 0), | |
207 | TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo, SUPPLYV4, 0, 3, ENC, 2, | |
208 | END, 2), | |
209 | TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo, SUPPLYV6, 0, 3, ENE, 6, | |
210 | ENE, 6), | |
211 | TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo, SUPPLYV3, 0, 3, ENC, 4, | |
212 | END, 4), | |
213 | TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo, SUPPLYV3, 3, 3, ENC, 5, | |
214 | END, 5), | |
215 | TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo, SUPPLYV2, 5, 3, ENC, 6, | |
216 | END, 6), | |
217 | TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo, SUPPLYV6, 3, 3, ENE, 7, | |
218 | ENE, 7), | |
219 | TPS6586X_LDO(LDO_RTC, "REG-SYS", tps6586x_ldo, SUPPLYV4, 3, 3, V4, 7, | |
220 | V4, 7), | |
2628b100 AL |
221 | TPS6586X_LDO_LINEAR(LDO_1, "vinldo01", 32, 725000, 25000, SUPPLYV1, |
222 | 0, 5, ENC, 1, END, 1), | |
223 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 3000000, 50000, SUPPLYV2, | |
224 | 0, 5, ENC, 7, END, 7), | |
225 | TPS6586X_DVM(LDO_2, "vinldo23", 32, 725000, 25000, LDO2BV1, 0, 5, | |
226 | ENA, 3, ENB, 3, TPS6586X_VCC2, BIT(6)), | |
227 | TPS6586X_DVM(LDO_4, "vinldo4", 32, 1700000, 25000, LDO4V1, 0, 5, | |
228 | ENC, 3, END, 3, TPS6586X_VCC1, BIT(6)), | |
229 | TPS6586X_DVM(SM_0, "vin-sm0", 32, 725000, 25000, SM0V1, 0, 5, | |
230 | ENA, 1, ENB, 1, TPS6586X_VCC1, BIT(2)), | |
231 | TPS6586X_DVM(SM_1, "vin-sm1", 32, 725000, 25000, SM1V1, 0, 5, | |
232 | ENA, 0, ENB, 0, TPS6586X_VCC1, BIT(0)), | |
49610235 MR |
233 | }; |
234 | ||
844a4f0d | 235 | static struct tps6586x_regulator tps658623_regulator[] = { |
2628b100 AL |
236 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 1700000, 25000, SUPPLYV2, |
237 | 0, 5, ENC, 7, END, 7), | |
844a4f0d SA |
238 | }; |
239 | ||
6c46ccc8 AB |
240 | static struct tps6586x_regulator tps658640_regulator[] = { |
241 | TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo0, SUPPLYV4, 0, 3, | |
242 | ENC, 2, END, 2), | |
243 | TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo0, SUPPLYV6, 0, 3, | |
244 | ENE, 6, ENE, 6), | |
245 | TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo0, SUPPLYV3, 0, 3, | |
246 | ENC, 4, END, 4), | |
247 | TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo0, SUPPLYV3, 3, 3, | |
248 | ENC, 5, END, 5), | |
249 | TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo0, SUPPLYV2, 5, 3, | |
250 | ENC, 6, END, 6), | |
251 | TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo0, SUPPLYV6, 3, 3, | |
252 | ENE, 7, ENE, 7), | |
2628b100 AL |
253 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 2150000, 50000, SUPPLYV2, |
254 | 0, 5, ENC, 7, END, 7), | |
6c46ccc8 AB |
255 | |
256 | TPS6586X_FIXED_LDO(LDO_RTC, "REG-SYS", tps658640_rtc, SUPPLYV4, 3, 2, | |
257 | V4, 7, V4, 7), | |
258 | }; | |
259 | ||
844a4f0d | 260 | static struct tps6586x_regulator tps658643_regulator[] = { |
2628b100 AL |
261 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 1025000, 25000, SUPPLYV2, |
262 | 0, 5, ENC, 7, END, 7), | |
844a4f0d SA |
263 | }; |
264 | ||
49610235 MR |
265 | /* |
266 | * TPS6586X has 2 enable bits that are OR'ed to determine the actual | |
267 | * regulator state. Clearing one of this bits allows switching | |
268 | * regulator on and of with single register write. | |
269 | */ | |
270 | static inline int tps6586x_regulator_preinit(struct device *parent, | |
271 | struct tps6586x_regulator *ri) | |
272 | { | |
273 | uint8_t val1, val2; | |
274 | int ret; | |
275 | ||
1dbcf35c DH |
276 | if (ri->enable_reg[0] == ri->enable_reg[1] && |
277 | ri->enable_bit[0] == ri->enable_bit[1]) | |
278 | return 0; | |
279 | ||
49610235 MR |
280 | ret = tps6586x_read(parent, ri->enable_reg[0], &val1); |
281 | if (ret) | |
282 | return ret; | |
283 | ||
284 | ret = tps6586x_read(parent, ri->enable_reg[1], &val2); | |
285 | if (ret) | |
286 | return ret; | |
287 | ||
4f586707 | 288 | if (!(val2 & (1 << ri->enable_bit[1]))) |
49610235 MR |
289 | return 0; |
290 | ||
291 | /* | |
292 | * The regulator is on, but it's enabled with the bit we don't | |
293 | * want to use, so we switch the enable bits | |
294 | */ | |
4f586707 | 295 | if (!(val1 & (1 << ri->enable_bit[0]))) { |
49610235 MR |
296 | ret = tps6586x_set_bits(parent, ri->enable_reg[0], |
297 | 1 << ri->enable_bit[0]); | |
298 | if (ret) | |
299 | return ret; | |
300 | } | |
301 | ||
302 | return tps6586x_clr_bits(parent, ri->enable_reg[1], | |
303 | 1 << ri->enable_bit[1]); | |
304 | } | |
305 | ||
64e48160 LD |
306 | static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev, |
307 | int id, struct regulator_init_data *p) | |
500c524a XX |
308 | { |
309 | struct device *parent = pdev->dev.parent; | |
500c524a XX |
310 | struct tps6586x_settings *setting = p->driver_data; |
311 | uint8_t reg; | |
312 | ||
313 | if (setting == NULL) | |
314 | return 0; | |
315 | ||
316 | if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET)) | |
317 | return 0; | |
318 | ||
319 | /* only SM0 and SM1 can have the slew rate settings */ | |
64e48160 | 320 | switch (id) { |
500c524a XX |
321 | case TPS6586X_ID_SM_0: |
322 | reg = TPS6586X_SM0SL; | |
323 | break; | |
324 | case TPS6586X_ID_SM_1: | |
325 | reg = TPS6586X_SM1SL; | |
326 | break; | |
327 | default: | |
6673d66e | 328 | dev_err(&pdev->dev, "Only SM0/SM1 can set slew rate\n"); |
500c524a XX |
329 | return -EINVAL; |
330 | } | |
331 | ||
332 | return tps6586x_write(parent, reg, | |
333 | setting->slew_rate & TPS6586X_SLEW_RATE_MASK); | |
334 | } | |
335 | ||
844a4f0d | 336 | static struct tps6586x_regulator *find_regulator_info(int id, int version) |
49610235 MR |
337 | { |
338 | struct tps6586x_regulator *ri; | |
844a4f0d SA |
339 | struct tps6586x_regulator *table = NULL; |
340 | int num; | |
49610235 MR |
341 | int i; |
342 | ||
844a4f0d SA |
343 | switch (version) { |
344 | case TPS658623: | |
345 | table = tps658623_regulator; | |
346 | num = ARRAY_SIZE(tps658623_regulator); | |
347 | break; | |
6c46ccc8 AB |
348 | case TPS658640: |
349 | case TPS658640v2: | |
350 | table = tps658640_regulator; | |
351 | num = ARRAY_SIZE(tps658640_regulator); | |
352 | break; | |
844a4f0d SA |
353 | case TPS658643: |
354 | table = tps658643_regulator; | |
355 | num = ARRAY_SIZE(tps658643_regulator); | |
356 | break; | |
357 | } | |
358 | ||
359 | /* Search version specific table first */ | |
360 | if (table) { | |
361 | for (i = 0; i < num; i++) { | |
362 | ri = &table[i]; | |
363 | if (ri->desc.id == id) | |
364 | return ri; | |
365 | } | |
366 | } | |
367 | ||
49610235 MR |
368 | for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) { |
369 | ri = &tps6586x_regulator[i]; | |
370 | if (ri->desc.id == id) | |
371 | return ri; | |
372 | } | |
373 | return NULL; | |
374 | } | |
375 | ||
64e48160 LD |
376 | #ifdef CONFIG_OF |
377 | static struct of_regulator_match tps6586x_matches[] = { | |
378 | { .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS }, | |
379 | { .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 }, | |
380 | { .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 }, | |
381 | { .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 }, | |
382 | { .name = "ldo0", .driver_data = (void *)TPS6586X_ID_LDO_0 }, | |
383 | { .name = "ldo1", .driver_data = (void *)TPS6586X_ID_LDO_1 }, | |
384 | { .name = "ldo2", .driver_data = (void *)TPS6586X_ID_LDO_2 }, | |
385 | { .name = "ldo3", .driver_data = (void *)TPS6586X_ID_LDO_3 }, | |
386 | { .name = "ldo4", .driver_data = (void *)TPS6586X_ID_LDO_4 }, | |
387 | { .name = "ldo5", .driver_data = (void *)TPS6586X_ID_LDO_5 }, | |
388 | { .name = "ldo6", .driver_data = (void *)TPS6586X_ID_LDO_6 }, | |
389 | { .name = "ldo7", .driver_data = (void *)TPS6586X_ID_LDO_7 }, | |
390 | { .name = "ldo8", .driver_data = (void *)TPS6586X_ID_LDO_8 }, | |
391 | { .name = "ldo9", .driver_data = (void *)TPS6586X_ID_LDO_9 }, | |
392 | { .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC }, | |
393 | }; | |
394 | ||
395 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
396 | struct platform_device *pdev, | |
397 | struct of_regulator_match **tps6586x_reg_matches) | |
398 | { | |
399 | const unsigned int num = ARRAY_SIZE(tps6586x_matches); | |
400 | struct device_node *np = pdev->dev.parent->of_node; | |
401 | struct device_node *regs; | |
402 | const char *sys_rail = NULL; | |
403 | unsigned int i; | |
404 | struct tps6586x_platform_data *pdata; | |
405 | int err; | |
406 | ||
712c967f | 407 | regs = of_get_child_by_name(np, "regulators"); |
64e48160 LD |
408 | if (!regs) { |
409 | dev_err(&pdev->dev, "regulator node not found\n"); | |
410 | return NULL; | |
411 | } | |
412 | ||
413 | err = of_regulator_match(&pdev->dev, regs, tps6586x_matches, num); | |
0a4cccaa | 414 | of_node_put(regs); |
64e48160 LD |
415 | if (err < 0) { |
416 | dev_err(&pdev->dev, "Regulator match failed, e %d\n", err); | |
64e48160 LD |
417 | return NULL; |
418 | } | |
419 | ||
64e48160 | 420 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
02e90584 | 421 | if (!pdata) |
64e48160 | 422 | return NULL; |
64e48160 LD |
423 | |
424 | for (i = 0; i < num; i++) { | |
a70f0d02 | 425 | uintptr_t id; |
64e48160 LD |
426 | if (!tps6586x_matches[i].init_data) |
427 | continue; | |
428 | ||
429 | pdata->reg_init_data[i] = tps6586x_matches[i].init_data; | |
a70f0d02 | 430 | id = (uintptr_t)tps6586x_matches[i].driver_data; |
64e48160 LD |
431 | if (id == TPS6586X_ID_SYS) |
432 | sys_rail = pdata->reg_init_data[i]->constraints.name; | |
433 | ||
434 | if ((id == TPS6586X_ID_LDO_5) || (id == TPS6586X_ID_LDO_RTC)) | |
435 | pdata->reg_init_data[i]->supply_regulator = sys_rail; | |
436 | } | |
437 | *tps6586x_reg_matches = tps6586x_matches; | |
438 | return pdata; | |
439 | } | |
440 | #else | |
441 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
442 | struct platform_device *pdev, | |
443 | struct of_regulator_match **tps6586x_reg_matches) | |
444 | { | |
445 | *tps6586x_reg_matches = NULL; | |
446 | return NULL; | |
447 | } | |
448 | #endif | |
449 | ||
a5023574 | 450 | static int tps6586x_regulator_probe(struct platform_device *pdev) |
49610235 MR |
451 | { |
452 | struct tps6586x_regulator *ri = NULL; | |
c172708d | 453 | struct regulator_config config = { }; |
d6fe2c72 | 454 | struct regulator_dev *rdev; |
64e48160 LD |
455 | struct regulator_init_data *reg_data; |
456 | struct tps6586x_platform_data *pdata; | |
457 | struct of_regulator_match *tps6586x_reg_matches = NULL; | |
844a4f0d | 458 | int version; |
64e48160 | 459 | int id; |
49610235 MR |
460 | int err; |
461 | ||
10835600 | 462 | dev_dbg(&pdev->dev, "Probing regulator\n"); |
49610235 | 463 | |
64e48160 LD |
464 | pdata = dev_get_platdata(pdev->dev.parent); |
465 | if ((!pdata) && (pdev->dev.parent->of_node)) | |
466 | pdata = tps6586x_parse_regulator_dt(pdev, | |
467 | &tps6586x_reg_matches); | |
49610235 | 468 | |
64e48160 LD |
469 | if (!pdata) { |
470 | dev_err(&pdev->dev, "Platform data not available, exiting\n"); | |
471 | return -ENODEV; | |
472 | } | |
49610235 | 473 | |
844a4f0d SA |
474 | version = tps6586x_get_version(pdev->dev.parent); |
475 | ||
64e48160 LD |
476 | for (id = 0; id < TPS6586X_ID_MAX_REGULATOR; ++id) { |
477 | reg_data = pdata->reg_init_data[id]; | |
478 | ||
844a4f0d SA |
479 | ri = find_regulator_info(id, version); |
480 | ||
64e48160 LD |
481 | if (!ri) { |
482 | dev_err(&pdev->dev, "invalid regulator ID specified\n"); | |
884ea557 | 483 | return -EINVAL; |
64e48160 LD |
484 | } |
485 | ||
486 | err = tps6586x_regulator_preinit(pdev->dev.parent, ri); | |
487 | if (err) { | |
488 | dev_err(&pdev->dev, | |
489 | "regulator %d preinit failed, e %d\n", id, err); | |
884ea557 | 490 | return err; |
64e48160 LD |
491 | } |
492 | ||
493 | config.dev = pdev->dev.parent; | |
494 | config.init_data = reg_data; | |
495 | config.driver_data = ri; | |
496 | ||
497 | if (tps6586x_reg_matches) | |
498 | config.of_node = tps6586x_reg_matches[id].of_node; | |
499 | ||
d6fe2c72 AL |
500 | rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config); |
501 | if (IS_ERR(rdev)) { | |
64e48160 LD |
502 | dev_err(&pdev->dev, "failed to register regulator %s\n", |
503 | ri->desc.name); | |
d6fe2c72 | 504 | return PTR_ERR(rdev); |
64e48160 LD |
505 | } |
506 | ||
507 | if (reg_data) { | |
508 | err = tps6586x_regulator_set_slew_rate(pdev, id, | |
509 | reg_data); | |
510 | if (err < 0) { | |
511 | dev_err(&pdev->dev, | |
512 | "Slew rate config failed, e %d\n", err); | |
884ea557 | 513 | return err; |
64e48160 LD |
514 | } |
515 | } | |
49610235 MR |
516 | } |
517 | ||
e7973c3c | 518 | platform_set_drvdata(pdev, rdev); |
64e48160 | 519 | return 0; |
49610235 MR |
520 | } |
521 | ||
522 | static struct platform_driver tps6586x_regulator_driver = { | |
523 | .driver = { | |
ec8da805 | 524 | .name = "tps6586x-regulator", |
49610235 MR |
525 | }, |
526 | .probe = tps6586x_regulator_probe, | |
49610235 MR |
527 | }; |
528 | ||
529 | static int __init tps6586x_regulator_init(void) | |
530 | { | |
531 | return platform_driver_register(&tps6586x_regulator_driver); | |
532 | } | |
533 | subsys_initcall(tps6586x_regulator_init); | |
534 | ||
535 | static void __exit tps6586x_regulator_exit(void) | |
536 | { | |
537 | platform_driver_unregister(&tps6586x_regulator_driver); | |
538 | } | |
539 | module_exit(tps6586x_regulator_exit); | |
540 | ||
541 | MODULE_LICENSE("GPL"); | |
542 | MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); | |
543 | MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC"); | |
544 | MODULE_ALIAS("platform:tps6586x-regulator"); |