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9767ec7f SK |
1 | /* |
2 | * s5m8767.c | |
3 | * | |
4 | * Copyright (c) 2011 Samsung Electronics Co., Ltd | |
5 | * http://www.samsung.com | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version 2 of the License, or (at your | |
10 | * option) any later version. | |
11 | * | |
12 | */ | |
13 | ||
14 | #include <linux/bug.h> | |
9767ec7f SK |
15 | #include <linux/err.h> |
16 | #include <linux/gpio.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/module.h> | |
19 | #include <linux/platform_device.h> | |
20 | #include <linux/regulator/driver.h> | |
21 | #include <linux/regulator/machine.h> | |
54227bcf SK |
22 | #include <linux/mfd/samsung/core.h> |
23 | #include <linux/mfd/samsung/s5m8767.h> | |
9767ec7f SK |
24 | |
25 | struct s5m8767_info { | |
26 | struct device *dev; | |
63063bfb | 27 | struct sec_pmic_dev *iodev; |
9767ec7f SK |
28 | int num_regulators; |
29 | struct regulator_dev **rdev; | |
63063bfb | 30 | struct sec_opmode_data *opmode; |
9767ec7f SK |
31 | |
32 | int ramp_delay; | |
33 | bool buck2_ramp; | |
34 | bool buck3_ramp; | |
35 | bool buck4_ramp; | |
36 | ||
37 | bool buck2_gpiodvs; | |
38 | bool buck3_gpiodvs; | |
39 | bool buck4_gpiodvs; | |
40 | u8 buck2_vol[8]; | |
41 | u8 buck3_vol[8]; | |
42 | u8 buck4_vol[8]; | |
43 | int buck_gpios[3]; | |
c848bc85 | 44 | int buck_ds[3]; |
9767ec7f SK |
45 | int buck_gpioindex; |
46 | }; | |
47 | ||
63063bfb | 48 | struct sec_voltage_desc { |
9767ec7f SK |
49 | int max; |
50 | int min; | |
51 | int step; | |
52 | }; | |
53 | ||
63063bfb | 54 | static const struct sec_voltage_desc buck_voltage_val1 = { |
9767ec7f SK |
55 | .max = 2225000, |
56 | .min = 650000, | |
57 | .step = 6250, | |
58 | }; | |
59 | ||
63063bfb | 60 | static const struct sec_voltage_desc buck_voltage_val2 = { |
9767ec7f SK |
61 | .max = 1600000, |
62 | .min = 600000, | |
63 | .step = 6250, | |
64 | }; | |
65 | ||
63063bfb | 66 | static const struct sec_voltage_desc buck_voltage_val3 = { |
9767ec7f SK |
67 | .max = 3000000, |
68 | .min = 750000, | |
69 | .step = 12500, | |
70 | }; | |
71 | ||
63063bfb | 72 | static const struct sec_voltage_desc ldo_voltage_val1 = { |
9767ec7f SK |
73 | .max = 3950000, |
74 | .min = 800000, | |
75 | .step = 50000, | |
76 | }; | |
77 | ||
63063bfb | 78 | static const struct sec_voltage_desc ldo_voltage_val2 = { |
9767ec7f SK |
79 | .max = 2375000, |
80 | .min = 800000, | |
81 | .step = 25000, | |
82 | }; | |
83 | ||
63063bfb | 84 | static const struct sec_voltage_desc *reg_voltage_map[] = { |
9767ec7f SK |
85 | [S5M8767_LDO1] = &ldo_voltage_val2, |
86 | [S5M8767_LDO2] = &ldo_voltage_val2, | |
87 | [S5M8767_LDO3] = &ldo_voltage_val1, | |
88 | [S5M8767_LDO4] = &ldo_voltage_val1, | |
89 | [S5M8767_LDO5] = &ldo_voltage_val1, | |
90 | [S5M8767_LDO6] = &ldo_voltage_val2, | |
91 | [S5M8767_LDO7] = &ldo_voltage_val2, | |
92 | [S5M8767_LDO8] = &ldo_voltage_val2, | |
93 | [S5M8767_LDO9] = &ldo_voltage_val1, | |
94 | [S5M8767_LDO10] = &ldo_voltage_val1, | |
95 | [S5M8767_LDO11] = &ldo_voltage_val1, | |
96 | [S5M8767_LDO12] = &ldo_voltage_val1, | |
97 | [S5M8767_LDO13] = &ldo_voltage_val1, | |
98 | [S5M8767_LDO14] = &ldo_voltage_val1, | |
99 | [S5M8767_LDO15] = &ldo_voltage_val2, | |
100 | [S5M8767_LDO16] = &ldo_voltage_val1, | |
101 | [S5M8767_LDO17] = &ldo_voltage_val1, | |
102 | [S5M8767_LDO18] = &ldo_voltage_val1, | |
103 | [S5M8767_LDO19] = &ldo_voltage_val1, | |
104 | [S5M8767_LDO20] = &ldo_voltage_val1, | |
105 | [S5M8767_LDO21] = &ldo_voltage_val1, | |
106 | [S5M8767_LDO22] = &ldo_voltage_val1, | |
107 | [S5M8767_LDO23] = &ldo_voltage_val1, | |
108 | [S5M8767_LDO24] = &ldo_voltage_val1, | |
109 | [S5M8767_LDO25] = &ldo_voltage_val1, | |
110 | [S5M8767_LDO26] = &ldo_voltage_val1, | |
111 | [S5M8767_LDO27] = &ldo_voltage_val1, | |
112 | [S5M8767_LDO28] = &ldo_voltage_val1, | |
113 | [S5M8767_BUCK1] = &buck_voltage_val1, | |
114 | [S5M8767_BUCK2] = &buck_voltage_val2, | |
115 | [S5M8767_BUCK3] = &buck_voltage_val2, | |
116 | [S5M8767_BUCK4] = &buck_voltage_val2, | |
117 | [S5M8767_BUCK5] = &buck_voltage_val1, | |
118 | [S5M8767_BUCK6] = &buck_voltage_val1, | |
119 | [S5M8767_BUCK7] = NULL, | |
120 | [S5M8767_BUCK8] = NULL, | |
121 | [S5M8767_BUCK9] = &buck_voltage_val3, | |
122 | }; | |
123 | ||
5ceba7ba | 124 | static unsigned int s5m8767_opmode_reg[][4] = { |
7e44bb83 SK |
125 | /* {OFF, ON, LOWPOWER, SUSPEND} */ |
126 | /* LDO1 ... LDO28 */ | |
127 | {0x0, 0x3, 0x2, 0x1}, /* LDO1 */ | |
128 | {0x0, 0x3, 0x2, 0x1}, | |
129 | {0x0, 0x3, 0x2, 0x1}, | |
130 | {0x0, 0x0, 0x0, 0x0}, | |
131 | {0x0, 0x3, 0x2, 0x1}, /* LDO5 */ | |
132 | {0x0, 0x3, 0x2, 0x1}, | |
133 | {0x0, 0x3, 0x2, 0x1}, | |
134 | {0x0, 0x3, 0x2, 0x1}, | |
135 | {0x0, 0x3, 0x2, 0x1}, | |
136 | {0x0, 0x3, 0x2, 0x1}, /* LDO10 */ | |
137 | {0x0, 0x3, 0x2, 0x1}, | |
138 | {0x0, 0x3, 0x2, 0x1}, | |
139 | {0x0, 0x3, 0x2, 0x1}, | |
140 | {0x0, 0x3, 0x2, 0x1}, | |
141 | {0x0, 0x3, 0x2, 0x1}, /* LDO15 */ | |
142 | {0x0, 0x3, 0x2, 0x1}, | |
143 | {0x0, 0x3, 0x2, 0x1}, | |
144 | {0x0, 0x0, 0x0, 0x0}, | |
145 | {0x0, 0x3, 0x2, 0x1}, | |
146 | {0x0, 0x3, 0x2, 0x1}, /* LDO20 */ | |
147 | {0x0, 0x3, 0x2, 0x1}, | |
148 | {0x0, 0x3, 0x2, 0x1}, | |
149 | {0x0, 0x0, 0x0, 0x0}, | |
150 | {0x0, 0x3, 0x2, 0x1}, | |
151 | {0x0, 0x3, 0x2, 0x1}, /* LDO25 */ | |
152 | {0x0, 0x3, 0x2, 0x1}, | |
153 | {0x0, 0x3, 0x2, 0x1}, | |
154 | {0x0, 0x3, 0x2, 0x1}, /* LDO28 */ | |
155 | ||
156 | /* BUCK1 ... BUCK9 */ | |
157 | {0x0, 0x3, 0x1, 0x1}, /* BUCK1 */ | |
158 | {0x0, 0x3, 0x1, 0x1}, | |
159 | {0x0, 0x3, 0x1, 0x1}, | |
160 | {0x0, 0x3, 0x1, 0x1}, | |
161 | {0x0, 0x3, 0x2, 0x1}, /* BUCK5 */ | |
162 | {0x0, 0x3, 0x1, 0x1}, | |
163 | {0x0, 0x3, 0x1, 0x1}, | |
164 | {0x0, 0x3, 0x1, 0x1}, | |
165 | {0x0, 0x3, 0x1, 0x1}, /* BUCK9 */ | |
166 | }; | |
167 | ||
168 | static int s5m8767_get_register(struct regulator_dev *rdev, int *reg, | |
169 | int *enable_ctrl) | |
9767ec7f | 170 | { |
9bb096ff | 171 | int i, reg_id = rdev_get_id(rdev); |
7e44bb83 SK |
172 | unsigned int mode; |
173 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); | |
9767ec7f SK |
174 | |
175 | switch (reg_id) { | |
176 | case S5M8767_LDO1 ... S5M8767_LDO2: | |
177 | *reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1); | |
178 | break; | |
179 | case S5M8767_LDO3 ... S5M8767_LDO28: | |
180 | *reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3); | |
181 | break; | |
182 | case S5M8767_BUCK1: | |
183 | *reg = S5M8767_REG_BUCK1CTRL1; | |
184 | break; | |
185 | case S5M8767_BUCK2 ... S5M8767_BUCK4: | |
186 | *reg = S5M8767_REG_BUCK2CTRL + (reg_id - S5M8767_BUCK2) * 9; | |
187 | break; | |
188 | case S5M8767_BUCK5: | |
189 | *reg = S5M8767_REG_BUCK5CTRL1; | |
190 | break; | |
191 | case S5M8767_BUCK6 ... S5M8767_BUCK9: | |
192 | *reg = S5M8767_REG_BUCK6CTRL1 + (reg_id - S5M8767_BUCK6) * 2; | |
193 | break; | |
194 | default: | |
195 | return -EINVAL; | |
196 | } | |
197 | ||
9bb096ff ADK |
198 | for (i = 0; i < s5m8767->num_regulators; i++) { |
199 | if (s5m8767->opmode[i].id == reg_id) { | |
200 | mode = s5m8767->opmode[i].mode; | |
201 | break; | |
202 | } | |
203 | } | |
204 | ||
205 | if (i < s5m8767->num_regulators) | |
206 | *enable_ctrl = | |
207 | s5m8767_opmode_reg[reg_id][mode] << S5M8767_ENCTRL_SHIFT; | |
208 | ||
9767ec7f SK |
209 | return 0; |
210 | } | |
211 | ||
212 | static int s5m8767_reg_is_enabled(struct regulator_dev *rdev) | |
213 | { | |
214 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); | |
215 | int ret, reg; | |
7e44bb83 | 216 | int mask = 0xc0, enable_ctrl; |
3ef30398 | 217 | unsigned int val; |
9767ec7f | 218 | |
7e44bb83 | 219 | ret = s5m8767_get_register(rdev, ®, &enable_ctrl); |
9767ec7f SK |
220 | if (ret == -EINVAL) |
221 | return 1; | |
222 | else if (ret) | |
223 | return ret; | |
224 | ||
63063bfb | 225 | ret = sec_reg_read(s5m8767->iodev, reg, &val); |
9767ec7f SK |
226 | if (ret) |
227 | return ret; | |
228 | ||
7e44bb83 | 229 | return (val & mask) == enable_ctrl; |
9767ec7f SK |
230 | } |
231 | ||
232 | static int s5m8767_reg_enable(struct regulator_dev *rdev) | |
233 | { | |
234 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); | |
235 | int ret, reg; | |
7e44bb83 | 236 | int mask = 0xc0, enable_ctrl; |
9767ec7f | 237 | |
7e44bb83 | 238 | ret = s5m8767_get_register(rdev, ®, &enable_ctrl); |
9767ec7f SK |
239 | if (ret) |
240 | return ret; | |
241 | ||
63063bfb | 242 | return sec_reg_update(s5m8767->iodev, reg, enable_ctrl, mask); |
9767ec7f SK |
243 | } |
244 | ||
245 | static int s5m8767_reg_disable(struct regulator_dev *rdev) | |
246 | { | |
247 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); | |
248 | int ret, reg; | |
7e44bb83 | 249 | int mask = 0xc0, enable_ctrl; |
9767ec7f | 250 | |
7e44bb83 | 251 | ret = s5m8767_get_register(rdev, ®, &enable_ctrl); |
9767ec7f SK |
252 | if (ret) |
253 | return ret; | |
254 | ||
63063bfb | 255 | return sec_reg_update(s5m8767->iodev, reg, ~mask, mask); |
9767ec7f SK |
256 | } |
257 | ||
258 | static int s5m8767_get_voltage_register(struct regulator_dev *rdev, int *_reg) | |
259 | { | |
0a41685f | 260 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); |
20a14b84 | 261 | int reg_id = rdev_get_id(rdev); |
9767ec7f SK |
262 | int reg; |
263 | ||
264 | switch (reg_id) { | |
265 | case S5M8767_LDO1 ... S5M8767_LDO2: | |
266 | reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1); | |
267 | break; | |
268 | case S5M8767_LDO3 ... S5M8767_LDO28: | |
269 | reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3); | |
270 | break; | |
271 | case S5M8767_BUCK1: | |
272 | reg = S5M8767_REG_BUCK1CTRL2; | |
273 | break; | |
274 | case S5M8767_BUCK2: | |
da130ab2 | 275 | reg = S5M8767_REG_BUCK2DVS1; |
0a41685f AL |
276 | if (s5m8767->buck2_gpiodvs) |
277 | reg += s5m8767->buck_gpioindex; | |
9767ec7f SK |
278 | break; |
279 | case S5M8767_BUCK3: | |
da130ab2 | 280 | reg = S5M8767_REG_BUCK3DVS1; |
0a41685f AL |
281 | if (s5m8767->buck3_gpiodvs) |
282 | reg += s5m8767->buck_gpioindex; | |
9767ec7f SK |
283 | break; |
284 | case S5M8767_BUCK4: | |
da130ab2 | 285 | reg = S5M8767_REG_BUCK4DVS1; |
0a41685f AL |
286 | if (s5m8767->buck4_gpiodvs) |
287 | reg += s5m8767->buck_gpioindex; | |
9767ec7f SK |
288 | break; |
289 | case S5M8767_BUCK5: | |
290 | reg = S5M8767_REG_BUCK5CTRL2; | |
291 | break; | |
292 | case S5M8767_BUCK6 ... S5M8767_BUCK9: | |
293 | reg = S5M8767_REG_BUCK6CTRL2 + (reg_id - S5M8767_BUCK6) * 2; | |
294 | break; | |
295 | default: | |
296 | return -EINVAL; | |
297 | } | |
298 | ||
299 | *_reg = reg; | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
304 | static int s5m8767_get_voltage_sel(struct regulator_dev *rdev) | |
305 | { | |
306 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); | |
0a41685f | 307 | int reg, mask, ret; |
20a14b84 | 308 | int reg_id = rdev_get_id(rdev); |
3ef30398 | 309 | unsigned int val; |
9767ec7f SK |
310 | |
311 | ret = s5m8767_get_voltage_register(rdev, ®); | |
312 | if (ret) | |
313 | return ret; | |
314 | ||
0a41685f | 315 | mask = (reg_id < S5M8767_BUCK1) ? 0x3f : 0xff; |
9767ec7f | 316 | |
63063bfb | 317 | ret = sec_reg_read(s5m8767->iodev, reg, &val); |
9767ec7f SK |
318 | if (ret) |
319 | return ret; | |
320 | ||
321 | val &= mask; | |
322 | ||
323 | return val; | |
324 | } | |
325 | ||
5b5e977c | 326 | static int s5m8767_convert_voltage_to_sel( |
63063bfb | 327 | const struct sec_voltage_desc *desc, |
9767ec7f SK |
328 | int min_vol, int max_vol) |
329 | { | |
5b5e977c | 330 | int selector = 0; |
9767ec7f SK |
331 | |
332 | if (desc == NULL) | |
333 | return -EINVAL; | |
334 | ||
335 | if (max_vol < desc->min || min_vol > desc->max) | |
336 | return -EINVAL; | |
337 | ||
94e85a3c AL |
338 | if (min_vol < desc->min) |
339 | min_vol = desc->min; | |
340 | ||
341 | selector = DIV_ROUND_UP(min_vol - desc->min, desc->step); | |
9767ec7f | 342 | |
5b5e977c | 343 | if (desc->min + desc->step * selector > max_vol) |
9767ec7f SK |
344 | return -EINVAL; |
345 | ||
5b5e977c | 346 | return selector; |
9767ec7f SK |
347 | } |
348 | ||
df2643cf | 349 | static inline int s5m8767_set_high(struct s5m8767_info *s5m8767) |
321d2aba AL |
350 | { |
351 | int temp_index = s5m8767->buck_gpioindex; | |
352 | ||
353 | gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1); | |
354 | gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1); | |
355 | gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1); | |
df2643cf SK |
356 | |
357 | return 0; | |
321d2aba AL |
358 | } |
359 | ||
df2643cf | 360 | static inline int s5m8767_set_low(struct s5m8767_info *s5m8767) |
321d2aba AL |
361 | { |
362 | int temp_index = s5m8767->buck_gpioindex; | |
363 | ||
364 | gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1); | |
365 | gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1); | |
366 | gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1); | |
df2643cf SK |
367 | |
368 | return 0; | |
321d2aba AL |
369 | } |
370 | ||
df2643cf SK |
371 | static int s5m8767_set_voltage_sel(struct regulator_dev *rdev, |
372 | unsigned selector) | |
9767ec7f SK |
373 | { |
374 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); | |
20a14b84 | 375 | int reg_id = rdev_get_id(rdev); |
df2643cf | 376 | int reg, mask, ret = 0, old_index, index = 0; |
321d2aba | 377 | u8 *buck234_vol = NULL; |
9767ec7f SK |
378 | |
379 | switch (reg_id) { | |
380 | case S5M8767_LDO1 ... S5M8767_LDO28: | |
381 | mask = 0x3f; | |
382 | break; | |
383 | case S5M8767_BUCK1 ... S5M8767_BUCK6: | |
384 | mask = 0xff; | |
321d2aba AL |
385 | if (reg_id == S5M8767_BUCK2 && s5m8767->buck2_gpiodvs) |
386 | buck234_vol = &s5m8767->buck2_vol[0]; | |
387 | else if (reg_id == S5M8767_BUCK3 && s5m8767->buck3_gpiodvs) | |
388 | buck234_vol = &s5m8767->buck3_vol[0]; | |
389 | else if (reg_id == S5M8767_BUCK4 && s5m8767->buck4_gpiodvs) | |
390 | buck234_vol = &s5m8767->buck4_vol[0]; | |
9767ec7f SK |
391 | break; |
392 | case S5M8767_BUCK7 ... S5M8767_BUCK8: | |
393 | return -EINVAL; | |
394 | case S5M8767_BUCK9: | |
395 | mask = 0xff; | |
396 | break; | |
397 | default: | |
398 | return -EINVAL; | |
399 | } | |
400 | ||
321d2aba AL |
401 | /* buck234_vol != NULL means to control buck234 voltage via DVS GPIO */ |
402 | if (buck234_vol) { | |
df2643cf | 403 | while (*buck234_vol != selector) { |
321d2aba AL |
404 | buck234_vol++; |
405 | index++; | |
406 | } | |
407 | old_index = s5m8767->buck_gpioindex; | |
408 | s5m8767->buck_gpioindex = index; | |
409 | ||
410 | if (index > old_index) | |
df2643cf | 411 | return s5m8767_set_high(s5m8767); |
321d2aba | 412 | else |
df2643cf | 413 | return s5m8767_set_low(s5m8767); |
321d2aba AL |
414 | } else { |
415 | ret = s5m8767_get_voltage_register(rdev, ®); | |
416 | if (ret) | |
417 | return ret; | |
418 | ||
3e701cdf | 419 | return sec_reg_update(s5m8767->iodev, reg, selector, mask); |
321d2aba | 420 | } |
9767ec7f SK |
421 | } |
422 | ||
9767ec7f SK |
423 | static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev, |
424 | unsigned int old_sel, | |
425 | unsigned int new_sel) | |
426 | { | |
427 | struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev); | |
63063bfb | 428 | const struct sec_voltage_desc *desc; |
20a14b84 | 429 | int reg_id = rdev_get_id(rdev); |
9767ec7f | 430 | |
9767ec7f SK |
431 | desc = reg_voltage_map[reg_id]; |
432 | ||
9d88fc0b | 433 | if ((old_sel < new_sel) && s5m8767->ramp_delay) |
89e0f0e4 | 434 | return DIV_ROUND_UP(desc->step * (new_sel - old_sel), |
0f8b9c77 | 435 | s5m8767->ramp_delay * 1000); |
89e0f0e4 | 436 | return 0; |
9767ec7f SK |
437 | } |
438 | ||
d35aad0c | 439 | static struct regulator_ops s5m8767_ops = { |
e2eb169b | 440 | .list_voltage = regulator_list_voltage_linear, |
9767ec7f SK |
441 | .is_enabled = s5m8767_reg_is_enabled, |
442 | .enable = s5m8767_reg_enable, | |
443 | .disable = s5m8767_reg_disable, | |
444 | .get_voltage_sel = s5m8767_get_voltage_sel, | |
df2643cf | 445 | .set_voltage_sel = s5m8767_set_voltage_sel, |
9767ec7f SK |
446 | .set_voltage_time_sel = s5m8767_set_voltage_time_sel, |
447 | }; | |
448 | ||
e2eb169b AL |
449 | static struct regulator_ops s5m8767_buck78_ops = { |
450 | .is_enabled = s5m8767_reg_is_enabled, | |
451 | .enable = s5m8767_reg_enable, | |
452 | .disable = s5m8767_reg_disable, | |
453 | }; | |
454 | ||
65896e73 AL |
455 | #define s5m8767_regulator_desc(_name) { \ |
456 | .name = #_name, \ | |
457 | .id = S5M8767_##_name, \ | |
458 | .ops = &s5m8767_ops, \ | |
9767ec7f SK |
459 | .type = REGULATOR_VOLTAGE, \ |
460 | .owner = THIS_MODULE, \ | |
461 | } | |
462 | ||
e2eb169b AL |
463 | #define s5m8767_regulator_buck78_desc(_name) { \ |
464 | .name = #_name, \ | |
465 | .id = S5M8767_##_name, \ | |
466 | .ops = &s5m8767_buck78_ops, \ | |
467 | .type = REGULATOR_VOLTAGE, \ | |
468 | .owner = THIS_MODULE, \ | |
469 | } | |
470 | ||
9767ec7f | 471 | static struct regulator_desc regulators[] = { |
65896e73 AL |
472 | s5m8767_regulator_desc(LDO1), |
473 | s5m8767_regulator_desc(LDO2), | |
474 | s5m8767_regulator_desc(LDO3), | |
475 | s5m8767_regulator_desc(LDO4), | |
476 | s5m8767_regulator_desc(LDO5), | |
477 | s5m8767_regulator_desc(LDO6), | |
478 | s5m8767_regulator_desc(LDO7), | |
479 | s5m8767_regulator_desc(LDO8), | |
480 | s5m8767_regulator_desc(LDO9), | |
481 | s5m8767_regulator_desc(LDO10), | |
482 | s5m8767_regulator_desc(LDO11), | |
483 | s5m8767_regulator_desc(LDO12), | |
484 | s5m8767_regulator_desc(LDO13), | |
485 | s5m8767_regulator_desc(LDO14), | |
486 | s5m8767_regulator_desc(LDO15), | |
487 | s5m8767_regulator_desc(LDO16), | |
488 | s5m8767_regulator_desc(LDO17), | |
489 | s5m8767_regulator_desc(LDO18), | |
490 | s5m8767_regulator_desc(LDO19), | |
491 | s5m8767_regulator_desc(LDO20), | |
492 | s5m8767_regulator_desc(LDO21), | |
493 | s5m8767_regulator_desc(LDO22), | |
494 | s5m8767_regulator_desc(LDO23), | |
495 | s5m8767_regulator_desc(LDO24), | |
496 | s5m8767_regulator_desc(LDO25), | |
497 | s5m8767_regulator_desc(LDO26), | |
498 | s5m8767_regulator_desc(LDO27), | |
499 | s5m8767_regulator_desc(LDO28), | |
500 | s5m8767_regulator_desc(BUCK1), | |
501 | s5m8767_regulator_desc(BUCK2), | |
502 | s5m8767_regulator_desc(BUCK3), | |
503 | s5m8767_regulator_desc(BUCK4), | |
504 | s5m8767_regulator_desc(BUCK5), | |
505 | s5m8767_regulator_desc(BUCK6), | |
e2eb169b AL |
506 | s5m8767_regulator_buck78_desc(BUCK7), |
507 | s5m8767_regulator_buck78_desc(BUCK8), | |
65896e73 | 508 | s5m8767_regulator_desc(BUCK9), |
9767ec7f SK |
509 | }; |
510 | ||
a5023574 | 511 | static int s5m8767_pmic_probe(struct platform_device *pdev) |
9767ec7f | 512 | { |
63063bfb SK |
513 | struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent); |
514 | struct sec_platform_data *pdata = dev_get_platdata(iodev->dev); | |
c172708d | 515 | struct regulator_config config = { }; |
9767ec7f SK |
516 | struct regulator_dev **rdev; |
517 | struct s5m8767_info *s5m8767; | |
c848bc85 | 518 | int i, ret, size, buck_init; |
9767ec7f SK |
519 | |
520 | if (!pdata) { | |
521 | dev_err(pdev->dev.parent, "Platform data not supplied\n"); | |
522 | return -ENODEV; | |
523 | } | |
524 | ||
6c4efe24 AL |
525 | if (pdata->buck2_gpiodvs) { |
526 | if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) { | |
527 | dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n"); | |
528 | return -EINVAL; | |
529 | } | |
530 | } | |
531 | ||
532 | if (pdata->buck3_gpiodvs) { | |
533 | if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) { | |
534 | dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n"); | |
535 | return -EINVAL; | |
536 | } | |
537 | } | |
538 | ||
539 | if (pdata->buck4_gpiodvs) { | |
540 | if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) { | |
541 | dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n"); | |
542 | return -EINVAL; | |
543 | } | |
544 | } | |
545 | ||
9767ec7f SK |
546 | s5m8767 = devm_kzalloc(&pdev->dev, sizeof(struct s5m8767_info), |
547 | GFP_KERNEL); | |
548 | if (!s5m8767) | |
549 | return -ENOMEM; | |
550 | ||
551 | size = sizeof(struct regulator_dev *) * (S5M8767_REG_MAX - 2); | |
552 | s5m8767->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); | |
553 | if (!s5m8767->rdev) | |
554 | return -ENOMEM; | |
555 | ||
556 | rdev = s5m8767->rdev; | |
557 | s5m8767->dev = &pdev->dev; | |
558 | s5m8767->iodev = iodev; | |
9bb096ff | 559 | s5m8767->num_regulators = pdata->num_regulators; |
9767ec7f | 560 | platform_set_drvdata(pdev, s5m8767); |
9767ec7f SK |
561 | |
562 | s5m8767->buck_gpioindex = pdata->buck_default_idx; | |
563 | s5m8767->buck2_gpiodvs = pdata->buck2_gpiodvs; | |
564 | s5m8767->buck3_gpiodvs = pdata->buck3_gpiodvs; | |
565 | s5m8767->buck4_gpiodvs = pdata->buck4_gpiodvs; | |
566 | s5m8767->buck_gpios[0] = pdata->buck_gpios[0]; | |
567 | s5m8767->buck_gpios[1] = pdata->buck_gpios[1]; | |
568 | s5m8767->buck_gpios[2] = pdata->buck_gpios[2]; | |
c848bc85 SK |
569 | s5m8767->buck_ds[0] = pdata->buck_ds[0]; |
570 | s5m8767->buck_ds[1] = pdata->buck_ds[1]; | |
571 | s5m8767->buck_ds[2] = pdata->buck_ds[2]; | |
572 | ||
9767ec7f SK |
573 | s5m8767->ramp_delay = pdata->buck_ramp_delay; |
574 | s5m8767->buck2_ramp = pdata->buck2_ramp_enable; | |
575 | s5m8767->buck3_ramp = pdata->buck3_ramp_enable; | |
576 | s5m8767->buck4_ramp = pdata->buck4_ramp_enable; | |
7e44bb83 | 577 | s5m8767->opmode = pdata->opmode; |
9767ec7f | 578 | |
c848bc85 SK |
579 | buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, |
580 | pdata->buck2_init, | |
581 | pdata->buck2_init + | |
582 | buck_voltage_val2.step); | |
583 | ||
938e05bf | 584 | sec_reg_write(s5m8767->iodev, S5M8767_REG_BUCK2DVS2, buck_init); |
c848bc85 SK |
585 | |
586 | buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, | |
587 | pdata->buck3_init, | |
588 | pdata->buck3_init + | |
589 | buck_voltage_val2.step); | |
590 | ||
938e05bf | 591 | sec_reg_write(s5m8767->iodev, S5M8767_REG_BUCK3DVS2, buck_init); |
c848bc85 SK |
592 | |
593 | buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2, | |
594 | pdata->buck4_init, | |
595 | pdata->buck4_init + | |
596 | buck_voltage_val2.step); | |
597 | ||
938e05bf | 598 | sec_reg_write(s5m8767->iodev, S5M8767_REG_BUCK4DVS2, buck_init); |
c848bc85 | 599 | |
9767ec7f SK |
600 | for (i = 0; i < 8; i++) { |
601 | if (s5m8767->buck2_gpiodvs) { | |
602 | s5m8767->buck2_vol[i] = | |
5b5e977c | 603 | s5m8767_convert_voltage_to_sel( |
9767ec7f SK |
604 | &buck_voltage_val2, |
605 | pdata->buck2_voltage[i], | |
606 | pdata->buck2_voltage[i] + | |
607 | buck_voltage_val2.step); | |
608 | } | |
609 | ||
610 | if (s5m8767->buck3_gpiodvs) { | |
611 | s5m8767->buck3_vol[i] = | |
5b5e977c | 612 | s5m8767_convert_voltage_to_sel( |
9767ec7f SK |
613 | &buck_voltage_val2, |
614 | pdata->buck3_voltage[i], | |
615 | pdata->buck3_voltage[i] + | |
616 | buck_voltage_val2.step); | |
617 | } | |
618 | ||
619 | if (s5m8767->buck4_gpiodvs) { | |
620 | s5m8767->buck4_vol[i] = | |
5b5e977c | 621 | s5m8767_convert_voltage_to_sel( |
9767ec7f SK |
622 | &buck_voltage_val2, |
623 | pdata->buck4_voltage[i], | |
624 | pdata->buck4_voltage[i] + | |
625 | buck_voltage_val2.step); | |
626 | } | |
627 | } | |
628 | ||
76c854d1 ADK |
629 | if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs || |
630 | pdata->buck4_gpiodvs) { | |
631 | ||
632 | if (!gpio_is_valid(pdata->buck_gpios[0]) || | |
633 | !gpio_is_valid(pdata->buck_gpios[1]) || | |
634 | !gpio_is_valid(pdata->buck_gpios[2])) { | |
635 | dev_err(&pdev->dev, "GPIO NOT VALID\n"); | |
636 | return -EINVAL; | |
637 | } | |
638 | ||
5febb3c9 AL |
639 | ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[0], |
640 | "S5M8767 SET1"); | |
641 | if (ret) | |
642 | return ret; | |
643 | ||
644 | ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[1], | |
645 | "S5M8767 SET2"); | |
646 | if (ret) | |
647 | return ret; | |
648 | ||
649 | ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[2], | |
650 | "S5M8767 SET3"); | |
651 | if (ret) | |
652 | return ret; | |
653 | ||
c848bc85 SK |
654 | /* SET1 GPIO */ |
655 | gpio_direction_output(pdata->buck_gpios[0], | |
656 | (s5m8767->buck_gpioindex >> 2) & 0x1); | |
657 | /* SET2 GPIO */ | |
658 | gpio_direction_output(pdata->buck_gpios[1], | |
659 | (s5m8767->buck_gpioindex >> 1) & 0x1); | |
660 | /* SET3 GPIO */ | |
661 | gpio_direction_output(pdata->buck_gpios[2], | |
662 | (s5m8767->buck_gpioindex >> 0) & 0x1); | |
9767ec7f SK |
663 | } |
664 | ||
5febb3c9 AL |
665 | ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[0], "S5M8767 DS2"); |
666 | if (ret) | |
667 | return ret; | |
c848bc85 | 668 | |
5febb3c9 AL |
669 | ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[1], "S5M8767 DS3"); |
670 | if (ret) | |
671 | return ret; | |
c848bc85 | 672 | |
5febb3c9 AL |
673 | ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[2], "S5M8767 DS4"); |
674 | if (ret) | |
675 | return ret; | |
c848bc85 SK |
676 | |
677 | /* DS2 GPIO */ | |
678 | gpio_direction_output(pdata->buck_ds[0], 0x0); | |
679 | /* DS3 GPIO */ | |
680 | gpio_direction_output(pdata->buck_ds[1], 0x0); | |
681 | /* DS4 GPIO */ | |
682 | gpio_direction_output(pdata->buck_ds[2], 0x0); | |
683 | ||
684 | if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs || | |
685 | pdata->buck4_gpiodvs) { | |
3e701cdf | 686 | sec_reg_update(s5m8767->iodev, S5M8767_REG_BUCK2CTRL, |
c848bc85 SK |
687 | (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1), |
688 | 1 << 1); | |
3e701cdf | 689 | sec_reg_update(s5m8767->iodev, S5M8767_REG_BUCK3CTRL, |
c848bc85 SK |
690 | (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1), |
691 | 1 << 1); | |
3e701cdf | 692 | sec_reg_update(s5m8767->iodev, S5M8767_REG_BUCK4CTRL, |
c848bc85 SK |
693 | (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1), |
694 | 1 << 1); | |
695 | } | |
9767ec7f SK |
696 | |
697 | /* Initialize GPIO DVS registers */ | |
698 | for (i = 0; i < 8; i++) { | |
699 | if (s5m8767->buck2_gpiodvs) { | |
63063bfb | 700 | sec_reg_write(s5m8767->iodev, S5M8767_REG_BUCK2DVS1 + i, |
9767ec7f SK |
701 | s5m8767->buck2_vol[i]); |
702 | } | |
703 | ||
704 | if (s5m8767->buck3_gpiodvs) { | |
63063bfb | 705 | sec_reg_write(s5m8767->iodev, S5M8767_REG_BUCK3DVS1 + i, |
9767ec7f SK |
706 | s5m8767->buck3_vol[i]); |
707 | } | |
708 | ||
709 | if (s5m8767->buck4_gpiodvs) { | |
63063bfb | 710 | sec_reg_write(s5m8767->iodev, S5M8767_REG_BUCK4DVS1 + i, |
9767ec7f SK |
711 | s5m8767->buck4_vol[i]); |
712 | } | |
713 | } | |
9767ec7f SK |
714 | |
715 | if (s5m8767->buck2_ramp) | |
63063bfb | 716 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x08, 0x08); |
9767ec7f SK |
717 | |
718 | if (s5m8767->buck3_ramp) | |
63063bfb | 719 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x04, 0x04); |
9767ec7f SK |
720 | |
721 | if (s5m8767->buck4_ramp) | |
63063bfb | 722 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, 0x02, 0x02); |
9767ec7f SK |
723 | |
724 | if (s5m8767->buck2_ramp || s5m8767->buck3_ramp | |
725 | || s5m8767->buck4_ramp) { | |
726 | switch (s5m8767->ramp_delay) { | |
1af142c6 | 727 | case 5: |
63063bfb | 728 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, |
1af142c6 SK |
729 | 0x40, 0xf0); |
730 | break; | |
731 | case 10: | |
3e701cdf | 732 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, |
1af142c6 | 733 | 0x90, 0xf0); |
047ec220 | 734 | break; |
9767ec7f | 735 | case 25: |
63063bfb | 736 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, |
9767ec7f | 737 | 0xd0, 0xf0); |
047ec220 | 738 | break; |
9767ec7f | 739 | case 50: |
63063bfb | 740 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, |
9767ec7f | 741 | 0xe0, 0xf0); |
047ec220 | 742 | break; |
9767ec7f | 743 | case 100: |
63063bfb | 744 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, |
9767ec7f | 745 | 0xf0, 0xf0); |
047ec220 | 746 | break; |
9767ec7f | 747 | default: |
63063bfb | 748 | sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP, |
9767ec7f SK |
749 | 0x90, 0xf0); |
750 | } | |
751 | } | |
752 | ||
753 | for (i = 0; i < pdata->num_regulators; i++) { | |
63063bfb | 754 | const struct sec_voltage_desc *desc; |
9767ec7f SK |
755 | int id = pdata->regulators[i].id; |
756 | ||
757 | desc = reg_voltage_map[id]; | |
e2eb169b | 758 | if (desc) { |
9767ec7f SK |
759 | regulators[id].n_voltages = |
760 | (desc->max - desc->min) / desc->step + 1; | |
e2eb169b AL |
761 | regulators[id].min_uV = desc->min; |
762 | regulators[id].uV_step = desc->step; | |
763 | } | |
9767ec7f | 764 | |
c172708d MB |
765 | config.dev = s5m8767->dev; |
766 | config.init_data = pdata->regulators[i].initdata; | |
767 | config.driver_data = s5m8767; | |
768 | ||
769 | rdev[i] = regulator_register(®ulators[id], &config); | |
9767ec7f SK |
770 | if (IS_ERR(rdev[i])) { |
771 | ret = PTR_ERR(rdev[i]); | |
772 | dev_err(s5m8767->dev, "regulator init failed for %d\n", | |
773 | id); | |
774 | rdev[i] = NULL; | |
775 | goto err; | |
776 | } | |
777 | } | |
778 | ||
779 | return 0; | |
780 | err: | |
781 | for (i = 0; i < s5m8767->num_regulators; i++) | |
782 | if (rdev[i]) | |
783 | regulator_unregister(rdev[i]); | |
784 | ||
785 | return ret; | |
786 | } | |
787 | ||
8dc995f5 | 788 | static int s5m8767_pmic_remove(struct platform_device *pdev) |
9767ec7f SK |
789 | { |
790 | struct s5m8767_info *s5m8767 = platform_get_drvdata(pdev); | |
791 | struct regulator_dev **rdev = s5m8767->rdev; | |
792 | int i; | |
793 | ||
794 | for (i = 0; i < s5m8767->num_regulators; i++) | |
795 | if (rdev[i]) | |
796 | regulator_unregister(rdev[i]); | |
797 | ||
798 | return 0; | |
799 | } | |
800 | ||
801 | static const struct platform_device_id s5m8767_pmic_id[] = { | |
802 | { "s5m8767-pmic", 0}, | |
803 | { }, | |
804 | }; | |
805 | MODULE_DEVICE_TABLE(platform, s5m8767_pmic_id); | |
806 | ||
807 | static struct platform_driver s5m8767_pmic_driver = { | |
808 | .driver = { | |
809 | .name = "s5m8767-pmic", | |
810 | .owner = THIS_MODULE, | |
811 | }, | |
812 | .probe = s5m8767_pmic_probe, | |
5eb9f2b9 | 813 | .remove = s5m8767_pmic_remove, |
9767ec7f SK |
814 | .id_table = s5m8767_pmic_id, |
815 | }; | |
816 | ||
817 | static int __init s5m8767_pmic_init(void) | |
818 | { | |
819 | return platform_driver_register(&s5m8767_pmic_driver); | |
820 | } | |
821 | subsys_initcall(s5m8767_pmic_init); | |
822 | ||
823 | static void __exit s5m8767_pmic_exit(void) | |
824 | { | |
825 | platform_driver_unregister(&s5m8767_pmic_driver); | |
826 | } | |
827 | module_exit(s5m8767_pmic_exit); | |
828 | ||
829 | /* Module information */ | |
830 | MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); | |
831 | MODULE_DESCRIPTION("SAMSUNG S5M8767 Regulator Driver"); | |
832 | MODULE_LICENSE("GPL"); |