Commit | Line | Data |
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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
49610235 MR |
2 | /* |
3 | * Regulator driver for TI TPS6586x | |
4 | * | |
5 | * Copyright (C) 2010 Compulab Ltd. | |
6 | * Author: Mike Rapoport <mike@compulab.co.il> | |
7 | * | |
8 | * Based on da903x | |
9 | * Copyright (C) 2006-2008 Marvell International Ltd. | |
10 | * Copyright (C) 2008 Compulab Ltd. | |
49610235 MR |
11 | */ |
12 | ||
49610235 | 13 | #include <linux/kernel.h> |
65602c32 | 14 | #include <linux/module.h> |
49610235 MR |
15 | #include <linux/init.h> |
16 | #include <linux/err.h> | |
64e48160 | 17 | #include <linux/of.h> |
49610235 MR |
18 | #include <linux/slab.h> |
19 | #include <linux/platform_device.h> | |
20 | #include <linux/regulator/driver.h> | |
21 | #include <linux/regulator/machine.h> | |
64e48160 | 22 | #include <linux/regulator/of_regulator.h> |
49610235 MR |
23 | #include <linux/mfd/tps6586x.h> |
24 | ||
25 | /* supply control and voltage setting */ | |
26 | #define TPS6586X_SUPPLYENA 0x10 | |
27 | #define TPS6586X_SUPPLYENB 0x11 | |
28 | #define TPS6586X_SUPPLYENC 0x12 | |
29 | #define TPS6586X_SUPPLYEND 0x13 | |
30 | #define TPS6586X_SUPPLYENE 0x14 | |
31 | #define TPS6586X_VCC1 0x20 | |
32 | #define TPS6586X_VCC2 0x21 | |
33 | #define TPS6586X_SM1V1 0x23 | |
34 | #define TPS6586X_SM1V2 0x24 | |
35 | #define TPS6586X_SM1SL 0x25 | |
36 | #define TPS6586X_SM0V1 0x26 | |
37 | #define TPS6586X_SM0V2 0x27 | |
38 | #define TPS6586X_SM0SL 0x28 | |
39 | #define TPS6586X_LDO2AV1 0x29 | |
40 | #define TPS6586X_LDO2AV2 0x2A | |
41 | #define TPS6586X_LDO2BV1 0x2F | |
42 | #define TPS6586X_LDO2BV2 0x30 | |
43 | #define TPS6586X_LDO4V1 0x32 | |
44 | #define TPS6586X_LDO4V2 0x33 | |
45 | ||
46 | /* converter settings */ | |
47 | #define TPS6586X_SUPPLYV1 0x41 | |
48 | #define TPS6586X_SUPPLYV2 0x42 | |
49 | #define TPS6586X_SUPPLYV3 0x43 | |
50 | #define TPS6586X_SUPPLYV4 0x44 | |
51 | #define TPS6586X_SUPPLYV5 0x45 | |
52 | #define TPS6586X_SUPPLYV6 0x46 | |
53 | #define TPS6586X_SMODE1 0x47 | |
54 | #define TPS6586X_SMODE2 0x48 | |
55 | ||
56 | struct tps6586x_regulator { | |
57 | struct regulator_desc desc; | |
58 | ||
49610235 MR |
59 | int enable_bit[2]; |
60 | int enable_reg[2]; | |
49610235 MR |
61 | }; |
62 | ||
25c80445 | 63 | static const struct regulator_ops tps6586x_rw_regulator_ops = { |
f4647037 | 64 | .list_voltage = regulator_list_voltage_table, |
4d673bbc | 65 | .map_voltage = regulator_map_voltage_ascend, |
7c7475c0 | 66 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
d645d591 | 67 | .set_voltage_sel = regulator_set_voltage_sel_regmap, |
49610235 | 68 | |
7c7475c0 AL |
69 | .is_enabled = regulator_is_enabled_regmap, |
70 | .enable = regulator_enable_regmap, | |
71 | .disable = regulator_disable_regmap, | |
49610235 MR |
72 | }; |
73 | ||
25c80445 | 74 | static const struct regulator_ops tps6586x_rw_linear_regulator_ops = { |
2628b100 AL |
75 | .list_voltage = regulator_list_voltage_linear, |
76 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
77 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
78 | ||
79 | .is_enabled = regulator_is_enabled_regmap, | |
80 | .enable = regulator_enable_regmap, | |
81 | .disable = regulator_disable_regmap, | |
82 | }; | |
83 | ||
25c80445 | 84 | static const struct regulator_ops tps6586x_ro_regulator_ops = { |
ad0b40fe AB |
85 | .list_voltage = regulator_list_voltage_table, |
86 | .map_voltage = regulator_map_voltage_ascend, | |
87 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
88 | ||
89 | .is_enabled = regulator_is_enabled_regmap, | |
90 | .enable = regulator_enable_regmap, | |
91 | .disable = regulator_disable_regmap, | |
92 | }; | |
93 | ||
25c80445 | 94 | static const struct regulator_ops tps6586x_sys_regulator_ops = { |
49610235 MR |
95 | }; |
96 | ||
f4647037 AL |
97 | static const unsigned int tps6586x_ldo0_voltages[] = { |
98 | 1200000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, | |
99 | }; | |
100 | ||
f4647037 AL |
101 | static const unsigned int tps6586x_ldo_voltages[] = { |
102 | 1250000, 1500000, 1800000, 2500000, 2700000, 2850000, 3100000, 3300000, | |
49610235 MR |
103 | }; |
104 | ||
2628b100 | 105 | static const unsigned int tps658640_rtc_voltages[] = { |
6c46ccc8 AB |
106 | 2500000, 2850000, 3100000, 3300000, |
107 | }; | |
108 | ||
ad0b40fe | 109 | #define TPS6586X_REGULATOR(_id, _ops, _pin_name, vdata, vreg, shift, nbits, \ |
d645d591 | 110 | ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ |
49610235 | 111 | .desc = { \ |
7c7fac30 | 112 | .supply_name = _pin_name, \ |
49610235 | 113 | .name = "REG-" #_id, \ |
ad0b40fe | 114 | .ops = &tps6586x_## _ops ## _regulator_ops, \ |
49610235 MR |
115 | .type = REGULATOR_VOLTAGE, \ |
116 | .id = TPS6586X_ID_##_id, \ | |
844a4f0d SA |
117 | .n_voltages = ARRAY_SIZE(vdata##_voltages), \ |
118 | .volt_table = vdata##_voltages, \ | |
49610235 | 119 | .owner = THIS_MODULE, \ |
7c7475c0 AL |
120 | .enable_reg = TPS6586X_SUPPLY##ereg0, \ |
121 | .enable_mask = 1 << (ebit0), \ | |
122 | .vsel_reg = TPS6586X_##vreg, \ | |
123 | .vsel_mask = ((1 << (nbits)) - 1) << (shift), \ | |
d645d591 AL |
124 | .apply_reg = (goreg), \ |
125 | .apply_bit = (gobit), \ | |
49610235 | 126 | }, \ |
49610235 MR |
127 | .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \ |
128 | .enable_bit[0] = (ebit0), \ | |
129 | .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ | |
f4647037 | 130 | .enable_bit[1] = (ebit1), |
64db657b | 131 | |
2628b100 AL |
132 | #define TPS6586X_REGULATOR_LINEAR(_id, _ops, _pin_name, n_volt, min_uv, \ |
133 | uv_step, vreg, shift, nbits, ereg0, \ | |
134 | ebit0, ereg1, ebit1, goreg, gobit) \ | |
135 | .desc = { \ | |
136 | .supply_name = _pin_name, \ | |
137 | .name = "REG-" #_id, \ | |
138 | .ops = &tps6586x_## _ops ## _regulator_ops, \ | |
139 | .type = REGULATOR_VOLTAGE, \ | |
140 | .id = TPS6586X_ID_##_id, \ | |
141 | .n_voltages = n_volt, \ | |
142 | .min_uV = min_uv, \ | |
143 | .uV_step = uv_step, \ | |
144 | .owner = THIS_MODULE, \ | |
145 | .enable_reg = TPS6586X_SUPPLY##ereg0, \ | |
146 | .enable_mask = 1 << (ebit0), \ | |
147 | .vsel_reg = TPS6586X_##vreg, \ | |
148 | .vsel_mask = ((1 << (nbits)) - 1) << (shift), \ | |
149 | .apply_reg = (goreg), \ | |
150 | .apply_bit = (gobit), \ | |
151 | }, \ | |
152 | .enable_reg[0] = TPS6586X_SUPPLY##ereg0, \ | |
153 | .enable_bit[0] = (ebit0), \ | |
154 | .enable_reg[1] = TPS6586X_SUPPLY##ereg1, \ | |
155 | .enable_bit[1] = (ebit1), | |
156 | ||
7c7fac30 | 157 | #define TPS6586X_LDO(_id, _pname, vdata, vreg, shift, nbits, \ |
49610235 | 158 | ereg0, ebit0, ereg1, ebit1) \ |
64db657b | 159 | { \ |
ad0b40fe AB |
160 | TPS6586X_REGULATOR(_id, rw, _pname, vdata, vreg, shift, nbits, \ |
161 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ | |
162 | } | |
163 | ||
2628b100 AL |
164 | #define TPS6586X_LDO_LINEAR(_id, _pname, n_volt, min_uv, uv_step, vreg, \ |
165 | shift, nbits, ereg0, ebit0, ereg1, ebit1) \ | |
166 | { \ | |
167 | TPS6586X_REGULATOR_LINEAR(_id, rw_linear, _pname, n_volt, \ | |
168 | min_uv, uv_step, vreg, shift, nbits, \ | |
169 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ | |
170 | } | |
171 | ||
ad0b40fe AB |
172 | #define TPS6586X_FIXED_LDO(_id, _pname, vdata, vreg, shift, nbits, \ |
173 | ereg0, ebit0, ereg1, ebit1) \ | |
174 | { \ | |
175 | TPS6586X_REGULATOR(_id, ro, _pname, vdata, vreg, shift, nbits, \ | |
d645d591 | 176 | ereg0, ebit0, ereg1, ebit1, 0, 0) \ |
64db657b | 177 | } |
49610235 | 178 | |
2628b100 AL |
179 | #define TPS6586X_DVM(_id, _pname, n_volt, min_uv, uv_step, vreg, shift, \ |
180 | nbits, ereg0, ebit0, ereg1, ebit1, goreg, gobit) \ | |
64db657b | 181 | { \ |
2628b100 AL |
182 | TPS6586X_REGULATOR_LINEAR(_id, rw_linear, _pname, n_volt, \ |
183 | min_uv, uv_step, vreg, shift, nbits, \ | |
184 | ereg0, ebit0, ereg1, ebit1, goreg, \ | |
185 | gobit) \ | |
64db657b | 186 | } |
49610235 | 187 | |
9394b80c LD |
188 | #define TPS6586X_SYS_REGULATOR() \ |
189 | { \ | |
190 | .desc = { \ | |
191 | .supply_name = "sys", \ | |
192 | .name = "REG-SYS", \ | |
193 | .ops = &tps6586x_sys_regulator_ops, \ | |
194 | .type = REGULATOR_VOLTAGE, \ | |
195 | .id = TPS6586X_ID_SYS, \ | |
196 | .owner = THIS_MODULE, \ | |
197 | }, \ | |
198 | } | |
199 | ||
49610235 | 200 | static struct tps6586x_regulator tps6586x_regulator[] = { |
9394b80c | 201 | TPS6586X_SYS_REGULATOR(), |
844a4f0d SA |
202 | TPS6586X_LDO(LDO_0, "vinldo01", tps6586x_ldo0, SUPPLYV1, 5, 3, ENC, 0, |
203 | END, 0), | |
204 | TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo, SUPPLYV4, 0, 3, ENC, 2, | |
205 | END, 2), | |
206 | TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo, SUPPLYV6, 0, 3, ENE, 6, | |
207 | ENE, 6), | |
208 | TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo, SUPPLYV3, 0, 3, ENC, 4, | |
209 | END, 4), | |
210 | TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo, SUPPLYV3, 3, 3, ENC, 5, | |
211 | END, 5), | |
212 | TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo, SUPPLYV2, 5, 3, ENC, 6, | |
213 | END, 6), | |
214 | TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo, SUPPLYV6, 3, 3, ENE, 7, | |
215 | ENE, 7), | |
216 | TPS6586X_LDO(LDO_RTC, "REG-SYS", tps6586x_ldo, SUPPLYV4, 3, 3, V4, 7, | |
217 | V4, 7), | |
2628b100 AL |
218 | TPS6586X_LDO_LINEAR(LDO_1, "vinldo01", 32, 725000, 25000, SUPPLYV1, |
219 | 0, 5, ENC, 1, END, 1), | |
220 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 3000000, 50000, SUPPLYV2, | |
221 | 0, 5, ENC, 7, END, 7), | |
222 | TPS6586X_DVM(LDO_2, "vinldo23", 32, 725000, 25000, LDO2BV1, 0, 5, | |
223 | ENA, 3, ENB, 3, TPS6586X_VCC2, BIT(6)), | |
224 | TPS6586X_DVM(LDO_4, "vinldo4", 32, 1700000, 25000, LDO4V1, 0, 5, | |
225 | ENC, 3, END, 3, TPS6586X_VCC1, BIT(6)), | |
226 | TPS6586X_DVM(SM_0, "vin-sm0", 32, 725000, 25000, SM0V1, 0, 5, | |
227 | ENA, 1, ENB, 1, TPS6586X_VCC1, BIT(2)), | |
228 | TPS6586X_DVM(SM_1, "vin-sm1", 32, 725000, 25000, SM1V1, 0, 5, | |
229 | ENA, 0, ENB, 0, TPS6586X_VCC1, BIT(0)), | |
49610235 MR |
230 | }; |
231 | ||
844a4f0d | 232 | static struct tps6586x_regulator tps658623_regulator[] = { |
2628b100 AL |
233 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 1700000, 25000, SUPPLYV2, |
234 | 0, 5, ENC, 7, END, 7), | |
844a4f0d SA |
235 | }; |
236 | ||
6c46ccc8 AB |
237 | static struct tps6586x_regulator tps658640_regulator[] = { |
238 | TPS6586X_LDO(LDO_3, "vinldo23", tps6586x_ldo0, SUPPLYV4, 0, 3, | |
239 | ENC, 2, END, 2), | |
240 | TPS6586X_LDO(LDO_5, "REG-SYS", tps6586x_ldo0, SUPPLYV6, 0, 3, | |
241 | ENE, 6, ENE, 6), | |
242 | TPS6586X_LDO(LDO_6, "vinldo678", tps6586x_ldo0, SUPPLYV3, 0, 3, | |
243 | ENC, 4, END, 4), | |
244 | TPS6586X_LDO(LDO_7, "vinldo678", tps6586x_ldo0, SUPPLYV3, 3, 3, | |
245 | ENC, 5, END, 5), | |
246 | TPS6586X_LDO(LDO_8, "vinldo678", tps6586x_ldo0, SUPPLYV2, 5, 3, | |
247 | ENC, 6, END, 6), | |
248 | TPS6586X_LDO(LDO_9, "vinldo9", tps6586x_ldo0, SUPPLYV6, 3, 3, | |
249 | ENE, 7, ENE, 7), | |
2628b100 AL |
250 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 2150000, 50000, SUPPLYV2, |
251 | 0, 5, ENC, 7, END, 7), | |
6c46ccc8 AB |
252 | |
253 | TPS6586X_FIXED_LDO(LDO_RTC, "REG-SYS", tps658640_rtc, SUPPLYV4, 3, 2, | |
254 | V4, 7, V4, 7), | |
255 | }; | |
256 | ||
844a4f0d | 257 | static struct tps6586x_regulator tps658643_regulator[] = { |
2628b100 AL |
258 | TPS6586X_LDO_LINEAR(SM_2, "vin-sm2", 32, 1025000, 25000, SUPPLYV2, |
259 | 0, 5, ENC, 7, END, 7), | |
844a4f0d SA |
260 | }; |
261 | ||
49610235 MR |
262 | /* |
263 | * TPS6586X has 2 enable bits that are OR'ed to determine the actual | |
264 | * regulator state. Clearing one of this bits allows switching | |
265 | * regulator on and of with single register write. | |
266 | */ | |
267 | static inline int tps6586x_regulator_preinit(struct device *parent, | |
268 | struct tps6586x_regulator *ri) | |
269 | { | |
270 | uint8_t val1, val2; | |
271 | int ret; | |
272 | ||
1dbcf35c DH |
273 | if (ri->enable_reg[0] == ri->enable_reg[1] && |
274 | ri->enable_bit[0] == ri->enable_bit[1]) | |
275 | return 0; | |
276 | ||
49610235 MR |
277 | ret = tps6586x_read(parent, ri->enable_reg[0], &val1); |
278 | if (ret) | |
279 | return ret; | |
280 | ||
281 | ret = tps6586x_read(parent, ri->enable_reg[1], &val2); | |
282 | if (ret) | |
283 | return ret; | |
284 | ||
4f586707 | 285 | if (!(val2 & (1 << ri->enable_bit[1]))) |
49610235 MR |
286 | return 0; |
287 | ||
288 | /* | |
289 | * The regulator is on, but it's enabled with the bit we don't | |
290 | * want to use, so we switch the enable bits | |
291 | */ | |
4f586707 | 292 | if (!(val1 & (1 << ri->enable_bit[0]))) { |
49610235 MR |
293 | ret = tps6586x_set_bits(parent, ri->enable_reg[0], |
294 | 1 << ri->enable_bit[0]); | |
295 | if (ret) | |
296 | return ret; | |
297 | } | |
298 | ||
299 | return tps6586x_clr_bits(parent, ri->enable_reg[1], | |
300 | 1 << ri->enable_bit[1]); | |
301 | } | |
302 | ||
64e48160 LD |
303 | static int tps6586x_regulator_set_slew_rate(struct platform_device *pdev, |
304 | int id, struct regulator_init_data *p) | |
500c524a XX |
305 | { |
306 | struct device *parent = pdev->dev.parent; | |
500c524a XX |
307 | struct tps6586x_settings *setting = p->driver_data; |
308 | uint8_t reg; | |
309 | ||
310 | if (setting == NULL) | |
311 | return 0; | |
312 | ||
313 | if (!(setting->slew_rate & TPS6586X_SLEW_RATE_SET)) | |
314 | return 0; | |
315 | ||
316 | /* only SM0 and SM1 can have the slew rate settings */ | |
64e48160 | 317 | switch (id) { |
500c524a XX |
318 | case TPS6586X_ID_SM_0: |
319 | reg = TPS6586X_SM0SL; | |
320 | break; | |
321 | case TPS6586X_ID_SM_1: | |
322 | reg = TPS6586X_SM1SL; | |
323 | break; | |
324 | default: | |
6673d66e | 325 | dev_err(&pdev->dev, "Only SM0/SM1 can set slew rate\n"); |
500c524a XX |
326 | return -EINVAL; |
327 | } | |
328 | ||
329 | return tps6586x_write(parent, reg, | |
330 | setting->slew_rate & TPS6586X_SLEW_RATE_MASK); | |
331 | } | |
332 | ||
844a4f0d | 333 | static struct tps6586x_regulator *find_regulator_info(int id, int version) |
49610235 MR |
334 | { |
335 | struct tps6586x_regulator *ri; | |
844a4f0d SA |
336 | struct tps6586x_regulator *table = NULL; |
337 | int num; | |
49610235 MR |
338 | int i; |
339 | ||
844a4f0d SA |
340 | switch (version) { |
341 | case TPS658623: | |
669ca030 | 342 | case TPS658624: |
844a4f0d SA |
343 | table = tps658623_regulator; |
344 | num = ARRAY_SIZE(tps658623_regulator); | |
345 | break; | |
6c46ccc8 AB |
346 | case TPS658640: |
347 | case TPS658640v2: | |
348 | table = tps658640_regulator; | |
349 | num = ARRAY_SIZE(tps658640_regulator); | |
350 | break; | |
844a4f0d SA |
351 | case TPS658643: |
352 | table = tps658643_regulator; | |
353 | num = ARRAY_SIZE(tps658643_regulator); | |
354 | break; | |
355 | } | |
356 | ||
357 | /* Search version specific table first */ | |
358 | if (table) { | |
359 | for (i = 0; i < num; i++) { | |
360 | ri = &table[i]; | |
361 | if (ri->desc.id == id) | |
362 | return ri; | |
363 | } | |
364 | } | |
365 | ||
49610235 MR |
366 | for (i = 0; i < ARRAY_SIZE(tps6586x_regulator); i++) { |
367 | ri = &tps6586x_regulator[i]; | |
368 | if (ri->desc.id == id) | |
369 | return ri; | |
370 | } | |
371 | return NULL; | |
372 | } | |
373 | ||
64e48160 LD |
374 | #ifdef CONFIG_OF |
375 | static struct of_regulator_match tps6586x_matches[] = { | |
376 | { .name = "sys", .driver_data = (void *)TPS6586X_ID_SYS }, | |
377 | { .name = "sm0", .driver_data = (void *)TPS6586X_ID_SM_0 }, | |
378 | { .name = "sm1", .driver_data = (void *)TPS6586X_ID_SM_1 }, | |
379 | { .name = "sm2", .driver_data = (void *)TPS6586X_ID_SM_2 }, | |
380 | { .name = "ldo0", .driver_data = (void *)TPS6586X_ID_LDO_0 }, | |
381 | { .name = "ldo1", .driver_data = (void *)TPS6586X_ID_LDO_1 }, | |
382 | { .name = "ldo2", .driver_data = (void *)TPS6586X_ID_LDO_2 }, | |
383 | { .name = "ldo3", .driver_data = (void *)TPS6586X_ID_LDO_3 }, | |
384 | { .name = "ldo4", .driver_data = (void *)TPS6586X_ID_LDO_4 }, | |
385 | { .name = "ldo5", .driver_data = (void *)TPS6586X_ID_LDO_5 }, | |
386 | { .name = "ldo6", .driver_data = (void *)TPS6586X_ID_LDO_6 }, | |
387 | { .name = "ldo7", .driver_data = (void *)TPS6586X_ID_LDO_7 }, | |
388 | { .name = "ldo8", .driver_data = (void *)TPS6586X_ID_LDO_8 }, | |
389 | { .name = "ldo9", .driver_data = (void *)TPS6586X_ID_LDO_9 }, | |
390 | { .name = "ldo_rtc", .driver_data = (void *)TPS6586X_ID_LDO_RTC }, | |
391 | }; | |
392 | ||
393 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
394 | struct platform_device *pdev, | |
395 | struct of_regulator_match **tps6586x_reg_matches) | |
396 | { | |
397 | const unsigned int num = ARRAY_SIZE(tps6586x_matches); | |
398 | struct device_node *np = pdev->dev.parent->of_node; | |
399 | struct device_node *regs; | |
400 | const char *sys_rail = NULL; | |
401 | unsigned int i; | |
402 | struct tps6586x_platform_data *pdata; | |
403 | int err; | |
404 | ||
712c967f | 405 | regs = of_get_child_by_name(np, "regulators"); |
64e48160 LD |
406 | if (!regs) { |
407 | dev_err(&pdev->dev, "regulator node not found\n"); | |
408 | return NULL; | |
409 | } | |
410 | ||
411 | err = of_regulator_match(&pdev->dev, regs, tps6586x_matches, num); | |
0a4cccaa | 412 | of_node_put(regs); |
64e48160 LD |
413 | if (err < 0) { |
414 | dev_err(&pdev->dev, "Regulator match failed, e %d\n", err); | |
64e48160 LD |
415 | return NULL; |
416 | } | |
417 | ||
64e48160 | 418 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); |
02e90584 | 419 | if (!pdata) |
64e48160 | 420 | return NULL; |
64e48160 LD |
421 | |
422 | for (i = 0; i < num; i++) { | |
a70f0d02 | 423 | uintptr_t id; |
64e48160 LD |
424 | if (!tps6586x_matches[i].init_data) |
425 | continue; | |
426 | ||
427 | pdata->reg_init_data[i] = tps6586x_matches[i].init_data; | |
a70f0d02 | 428 | id = (uintptr_t)tps6586x_matches[i].driver_data; |
64e48160 LD |
429 | if (id == TPS6586X_ID_SYS) |
430 | sys_rail = pdata->reg_init_data[i]->constraints.name; | |
431 | ||
432 | if ((id == TPS6586X_ID_LDO_5) || (id == TPS6586X_ID_LDO_RTC)) | |
433 | pdata->reg_init_data[i]->supply_regulator = sys_rail; | |
434 | } | |
435 | *tps6586x_reg_matches = tps6586x_matches; | |
436 | return pdata; | |
437 | } | |
438 | #else | |
439 | static struct tps6586x_platform_data *tps6586x_parse_regulator_dt( | |
440 | struct platform_device *pdev, | |
441 | struct of_regulator_match **tps6586x_reg_matches) | |
442 | { | |
443 | *tps6586x_reg_matches = NULL; | |
444 | return NULL; | |
445 | } | |
446 | #endif | |
447 | ||
a5023574 | 448 | static int tps6586x_regulator_probe(struct platform_device *pdev) |
49610235 MR |
449 | { |
450 | struct tps6586x_regulator *ri = NULL; | |
c172708d | 451 | struct regulator_config config = { }; |
d6fe2c72 | 452 | struct regulator_dev *rdev; |
64e48160 LD |
453 | struct regulator_init_data *reg_data; |
454 | struct tps6586x_platform_data *pdata; | |
455 | struct of_regulator_match *tps6586x_reg_matches = NULL; | |
844a4f0d | 456 | int version; |
64e48160 | 457 | int id; |
49610235 MR |
458 | int err; |
459 | ||
10835600 | 460 | dev_dbg(&pdev->dev, "Probing regulator\n"); |
49610235 | 461 | |
64e48160 LD |
462 | pdata = dev_get_platdata(pdev->dev.parent); |
463 | if ((!pdata) && (pdev->dev.parent->of_node)) | |
464 | pdata = tps6586x_parse_regulator_dt(pdev, | |
465 | &tps6586x_reg_matches); | |
49610235 | 466 | |
64e48160 LD |
467 | if (!pdata) { |
468 | dev_err(&pdev->dev, "Platform data not available, exiting\n"); | |
469 | return -ENODEV; | |
470 | } | |
49610235 | 471 | |
844a4f0d SA |
472 | version = tps6586x_get_version(pdev->dev.parent); |
473 | ||
64e48160 LD |
474 | for (id = 0; id < TPS6586X_ID_MAX_REGULATOR; ++id) { |
475 | reg_data = pdata->reg_init_data[id]; | |
476 | ||
844a4f0d SA |
477 | ri = find_regulator_info(id, version); |
478 | ||
64e48160 LD |
479 | if (!ri) { |
480 | dev_err(&pdev->dev, "invalid regulator ID specified\n"); | |
884ea557 | 481 | return -EINVAL; |
64e48160 LD |
482 | } |
483 | ||
484 | err = tps6586x_regulator_preinit(pdev->dev.parent, ri); | |
485 | if (err) { | |
486 | dev_err(&pdev->dev, | |
487 | "regulator %d preinit failed, e %d\n", id, err); | |
884ea557 | 488 | return err; |
64e48160 LD |
489 | } |
490 | ||
491 | config.dev = pdev->dev.parent; | |
492 | config.init_data = reg_data; | |
493 | config.driver_data = ri; | |
494 | ||
495 | if (tps6586x_reg_matches) | |
496 | config.of_node = tps6586x_reg_matches[id].of_node; | |
497 | ||
d6fe2c72 AL |
498 | rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config); |
499 | if (IS_ERR(rdev)) { | |
64e48160 LD |
500 | dev_err(&pdev->dev, "failed to register regulator %s\n", |
501 | ri->desc.name); | |
d6fe2c72 | 502 | return PTR_ERR(rdev); |
64e48160 LD |
503 | } |
504 | ||
505 | if (reg_data) { | |
506 | err = tps6586x_regulator_set_slew_rate(pdev, id, | |
507 | reg_data); | |
508 | if (err < 0) { | |
509 | dev_err(&pdev->dev, | |
510 | "Slew rate config failed, e %d\n", err); | |
884ea557 | 511 | return err; |
64e48160 LD |
512 | } |
513 | } | |
49610235 MR |
514 | } |
515 | ||
e7973c3c | 516 | platform_set_drvdata(pdev, rdev); |
64e48160 | 517 | return 0; |
49610235 MR |
518 | } |
519 | ||
520 | static struct platform_driver tps6586x_regulator_driver = { | |
521 | .driver = { | |
ec8da805 | 522 | .name = "tps6586x-regulator", |
259b93b2 | 523 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
49610235 MR |
524 | }, |
525 | .probe = tps6586x_regulator_probe, | |
49610235 MR |
526 | }; |
527 | ||
528 | static int __init tps6586x_regulator_init(void) | |
529 | { | |
530 | return platform_driver_register(&tps6586x_regulator_driver); | |
531 | } | |
532 | subsys_initcall(tps6586x_regulator_init); | |
533 | ||
534 | static void __exit tps6586x_regulator_exit(void) | |
535 | { | |
536 | platform_driver_unregister(&tps6586x_regulator_driver); | |
537 | } | |
538 | module_exit(tps6586x_regulator_exit); | |
539 | ||
540 | MODULE_LICENSE("GPL"); | |
541 | MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>"); | |
542 | MODULE_DESCRIPTION("Regulator Driver for TI TPS6586X PMIC"); | |
543 | MODULE_ALIAS("platform:tps6586x-regulator"); |