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5e9384c7 KK |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // | |
3 | // max77686.c - Regulator driver for the Maxim 77686 | |
4 | // | |
5 | // Copyright (C) 2012 Samsung Electronics | |
6 | // Chiwoong Byun <woong.byun@samsung.com> | |
7 | // Jonghwa Lee <jonghwa3.lee@samsung.com> | |
8 | // | |
9 | // This driver is based on max8997.c | |
133d4016 JL |
10 | |
11 | #include <linux/kernel.h> | |
12 | #include <linux/bug.h> | |
133d4016 | 13 | #include <linux/err.h> |
96392c3d | 14 | #include <linux/gpio/consumer.h> |
133d4016 JL |
15 | #include <linux/slab.h> |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/regulator/driver.h> | |
18 | #include <linux/regulator/machine.h> | |
4706fcab | 19 | #include <linux/regulator/of_regulator.h> |
133d4016 JL |
20 | #include <linux/mfd/max77686.h> |
21 | #include <linux/mfd/max77686-private.h> | |
22 | ||
23 | #define MAX77686_LDO_MINUV 800000 | |
24 | #define MAX77686_LDO_UVSTEP 50000 | |
25 | #define MAX77686_LDO_LOW_MINUV 800000 | |
26 | #define MAX77686_LDO_LOW_UVSTEP 25000 | |
27 | #define MAX77686_BUCK_MINUV 750000 | |
28 | #define MAX77686_BUCK_UVSTEP 50000 | |
a9597305 KK |
29 | #define MAX77686_BUCK_ENABLE_TIME 40 /* us */ |
30 | #define MAX77686_DVS_ENABLE_TIME 22 /* us */ | |
852abad2 YSB |
31 | #define MAX77686_RAMP_DELAY 100000 /* uV/us */ |
32 | #define MAX77686_DVS_RAMP_DELAY 27500 /* uV/us */ | |
133d4016 JL |
33 | #define MAX77686_DVS_MINUV 600000 |
34 | #define MAX77686_DVS_UVSTEP 12500 | |
35 | ||
3307e902 KK |
36 | /* |
37 | * Value for configuring buck[89] and LDO{20,21,22} as GPIO control. | |
38 | * It is the same as 'off' for other regulators. | |
39 | */ | |
40 | #define MAX77686_GPIO_CONTROL 0x0 | |
7636f19c KK |
41 | /* |
42 | * Values used for configuring LDOs and bucks. | |
43 | * Forcing low power mode: LDO1, 3-5, 9, 13, 17-26 | |
44 | */ | |
45 | #define MAX77686_LDO_LOWPOWER 0x1 | |
46 | /* | |
47 | * On/off controlled by PWRREQ: | |
48 | * - LDO2, 6-8, 10-12, 14-16 | |
49 | * - buck[1234] | |
50 | */ | |
51 | #define MAX77686_OFF_PWRREQ 0x1 | |
52 | /* Low power mode controlled by PWRREQ: All LDOs */ | |
53 | #define MAX77686_LDO_LOWPOWER_PWRREQ 0x2 | |
54 | /* Forcing low power mode: buck[234] */ | |
55 | #define MAX77686_BUCK_LOWPOWER 0x2 | |
56 | #define MAX77686_NORMAL 0x3 | |
57 | ||
133d4016 JL |
58 | #define MAX77686_OPMODE_SHIFT 6 |
59 | #define MAX77686_OPMODE_BUCK234_SHIFT 4 | |
60 | #define MAX77686_OPMODE_MASK 0x3 | |
61 | ||
62 | #define MAX77686_VSEL_MASK 0x3F | |
63 | #define MAX77686_DVS_VSEL_MASK 0xFF | |
64 | ||
65 | #define MAX77686_RAMP_RATE_MASK 0xC0 | |
66 | ||
67 | #define MAX77686_REGULATORS MAX77686_REG_MAX | |
68 | #define MAX77686_LDOS 26 | |
69 | ||
70 | enum max77686_ramp_rate { | |
71 | RAMP_RATE_13P75MV, | |
72 | RAMP_RATE_27P5MV, | |
73 | RAMP_RATE_55MV, | |
74 | RAMP_RATE_NO_CTRL, /* 100mV/us */ | |
75 | }; | |
76 | ||
77 | struct max77686_data { | |
96392c3d | 78 | struct device *dev; |
c53403a3 | 79 | DECLARE_BITMAP(gpio_enabled, MAX77686_REGULATORS); |
3307e902 | 80 | |
eca29da9 | 81 | /* Array indexed by regulator id */ |
6d2c896b | 82 | unsigned int opmode[MAX77686_REGULATORS]; |
133d4016 JL |
83 | }; |
84 | ||
68c5d186 KK |
85 | static unsigned int max77686_get_opmode_shift(int id) |
86 | { | |
87 | switch (id) { | |
88 | case MAX77686_BUCK1: | |
89 | case MAX77686_BUCK5 ... MAX77686_BUCK9: | |
90 | return 0; | |
91 | case MAX77686_BUCK2 ... MAX77686_BUCK4: | |
92 | return MAX77686_OPMODE_BUCK234_SHIFT; | |
93 | default: | |
94 | /* all LDOs */ | |
95 | return MAX77686_OPMODE_SHIFT; | |
96 | } | |
97 | } | |
98 | ||
3307e902 KK |
99 | /* |
100 | * When regulator is configured for GPIO control then it | |
101 | * replaces "normal" mode. Any change from low power mode to normal | |
102 | * should actually change to GPIO control. | |
103 | * Map normal mode to proper value for such regulators. | |
104 | */ | |
105 | static unsigned int max77686_map_normal_mode(struct max77686_data *max77686, | |
106 | int id) | |
107 | { | |
108 | switch (id) { | |
109 | case MAX77686_BUCK8: | |
110 | case MAX77686_BUCK9: | |
111 | case MAX77686_LDO20 ... MAX77686_LDO22: | |
c53403a3 | 112 | if (test_bit(id, max77686->gpio_enabled)) |
3307e902 KK |
113 | return MAX77686_GPIO_CONTROL; |
114 | } | |
115 | ||
116 | return MAX77686_NORMAL; | |
117 | } | |
118 | ||
78ce6128 KK |
119 | /* Some BUCKs and LDOs supports Normal[ON/OFF] mode during suspend */ |
120 | static int max77686_set_suspend_disable(struct regulator_dev *rdev) | |
15282ba9 | 121 | { |
68c5d186 | 122 | unsigned int val, shift; |
15282ba9 | 123 | struct max77686_data *max77686 = rdev_get_drvdata(rdev); |
3ecf198e | 124 | int ret, id = rdev_get_id(rdev); |
15282ba9 | 125 | |
68c5d186 KK |
126 | shift = max77686_get_opmode_shift(id); |
127 | val = MAX77686_OFF_PWRREQ; | |
15282ba9 | 128 | |
3ecf198e | 129 | ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, |
68c5d186 | 130 | rdev->desc->enable_mask, val << shift); |
3ecf198e AL |
131 | if (ret) |
132 | return ret; | |
133 | ||
40e72149 | 134 | max77686->opmode[id] = val; |
3ecf198e | 135 | return 0; |
15282ba9 YSB |
136 | } |
137 | ||
138 | /* Some LDOs supports [LPM/Normal]ON mode during suspend state */ | |
139 | static int max77686_set_suspend_mode(struct regulator_dev *rdev, | |
140 | unsigned int mode) | |
141 | { | |
142 | struct max77686_data *max77686 = rdev_get_drvdata(rdev); | |
143 | unsigned int val; | |
3ecf198e | 144 | int ret, id = rdev_get_id(rdev); |
15282ba9 YSB |
145 | |
146 | /* BUCK[5-9] doesn't support this feature */ | |
40e72149 | 147 | if (id >= MAX77686_BUCK5) |
15282ba9 YSB |
148 | return 0; |
149 | ||
150 | switch (mode) { | |
151 | case REGULATOR_MODE_IDLE: /* ON in LP Mode */ | |
68c5d186 | 152 | val = MAX77686_LDO_LOWPOWER_PWRREQ; |
15282ba9 YSB |
153 | break; |
154 | case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ | |
3307e902 | 155 | val = max77686_map_normal_mode(max77686, id); |
15282ba9 YSB |
156 | break; |
157 | default: | |
158 | pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", | |
159 | rdev->desc->name, mode); | |
160 | return -EINVAL; | |
161 | } | |
162 | ||
3ecf198e | 163 | ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, |
68c5d186 KK |
164 | rdev->desc->enable_mask, |
165 | val << MAX77686_OPMODE_SHIFT); | |
3ecf198e AL |
166 | if (ret) |
167 | return ret; | |
168 | ||
40e72149 | 169 | max77686->opmode[id] = val; |
3ecf198e | 170 | return 0; |
15282ba9 YSB |
171 | } |
172 | ||
173 | /* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */ | |
174 | static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev, | |
175 | unsigned int mode) | |
176 | { | |
177 | unsigned int val; | |
178 | struct max77686_data *max77686 = rdev_get_drvdata(rdev); | |
3307e902 | 179 | int ret, id = rdev_get_id(rdev); |
15282ba9 YSB |
180 | |
181 | switch (mode) { | |
182 | case REGULATOR_MODE_STANDBY: /* switch off */ | |
68c5d186 | 183 | val = MAX77686_OFF_PWRREQ; |
15282ba9 YSB |
184 | break; |
185 | case REGULATOR_MODE_IDLE: /* ON in LP Mode */ | |
68c5d186 | 186 | val = MAX77686_LDO_LOWPOWER_PWRREQ; |
15282ba9 YSB |
187 | break; |
188 | case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ | |
3307e902 | 189 | val = max77686_map_normal_mode(max77686, id); |
15282ba9 YSB |
190 | break; |
191 | default: | |
192 | pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", | |
193 | rdev->desc->name, mode); | |
194 | return -EINVAL; | |
195 | } | |
196 | ||
3ecf198e | 197 | ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, |
68c5d186 KK |
198 | rdev->desc->enable_mask, |
199 | val << MAX77686_OPMODE_SHIFT); | |
3ecf198e AL |
200 | if (ret) |
201 | return ret; | |
202 | ||
3307e902 | 203 | max77686->opmode[id] = val; |
3ecf198e | 204 | return 0; |
15282ba9 YSB |
205 | } |
206 | ||
38d34035 | 207 | static int max77686_enable(struct regulator_dev *rdev) |
6d2c896b YSB |
208 | { |
209 | struct max77686_data *max77686 = rdev_get_drvdata(rdev); | |
68c5d186 KK |
210 | unsigned int shift; |
211 | int id = rdev_get_id(rdev); | |
212 | ||
213 | shift = max77686_get_opmode_shift(id); | |
6d2c896b | 214 | |
78ce6128 | 215 | if (max77686->opmode[id] == MAX77686_OFF_PWRREQ) |
3307e902 | 216 | max77686->opmode[id] = max77686_map_normal_mode(max77686, id); |
78ce6128 | 217 | |
6d2c896b YSB |
218 | return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, |
219 | rdev->desc->enable_mask, | |
68c5d186 | 220 | max77686->opmode[id] << shift); |
6d2c896b YSB |
221 | } |
222 | ||
f503071b YSB |
223 | static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) |
224 | { | |
225 | unsigned int ramp_value = RAMP_RATE_NO_CTRL; | |
226 | ||
227 | switch (ramp_delay) { | |
228 | case 1 ... 13750: | |
229 | ramp_value = RAMP_RATE_13P75MV; | |
230 | break; | |
231 | case 13751 ... 27500: | |
232 | ramp_value = RAMP_RATE_27P5MV; | |
233 | break; | |
234 | case 27501 ... 55000: | |
235 | ramp_value = RAMP_RATE_55MV; | |
236 | break; | |
237 | case 55001 ... 100000: | |
238 | break; | |
239 | default: | |
240 | pr_warn("%s: ramp_delay: %d not supported, setting 100000\n", | |
241 | rdev->desc->name, ramp_delay); | |
242 | } | |
243 | ||
244 | return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, | |
245 | MAX77686_RAMP_RATE_MASK, ramp_value << 6); | |
246 | } | |
247 | ||
3307e902 KK |
248 | static int max77686_of_parse_cb(struct device_node *np, |
249 | const struct regulator_desc *desc, | |
250 | struct regulator_config *config) | |
251 | { | |
252 | struct max77686_data *max77686 = config->driver_data; | |
d03c63db | 253 | int ret; |
3307e902 KK |
254 | |
255 | switch (desc->id) { | |
256 | case MAX77686_BUCK8: | |
257 | case MAX77686_BUCK9: | |
258 | case MAX77686_LDO20 ... MAX77686_LDO22: | |
d03c63db | 259 | config->ena_gpiod = gpiod_get_from_of_node(np, |
96392c3d LW |
260 | "maxim,ena", |
261 | 0, | |
262 | GPIOD_OUT_HIGH | GPIOD_FLAGS_BIT_NONEXCLUSIVE, | |
263 | "max77686-regulator"); | |
264 | if (IS_ERR(config->ena_gpiod)) | |
265 | config->ena_gpiod = NULL; | |
3307e902 KK |
266 | break; |
267 | default: | |
268 | return 0; | |
269 | } | |
270 | ||
96392c3d | 271 | if (config->ena_gpiod) { |
c53403a3 | 272 | set_bit(desc->id, max77686->gpio_enabled); |
3307e902 | 273 | |
d03c63db LW |
274 | ret = regmap_update_bits(config->regmap, desc->enable_reg, |
275 | desc->enable_mask, | |
276 | MAX77686_GPIO_CONTROL); | |
277 | if (ret) { | |
278 | gpiod_put(config->ena_gpiod); | |
279 | config->ena_gpiod = NULL; | |
280 | } | |
3307e902 KK |
281 | } |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
404826cb | 286 | static const struct regulator_ops max77686_ops = { |
133d4016 | 287 | .list_voltage = regulator_list_voltage_linear, |
2e3f7f26 | 288 | .map_voltage = regulator_map_voltage_linear, |
133d4016 | 289 | .is_enabled = regulator_is_enabled_regmap, |
6d2c896b | 290 | .enable = max77686_enable, |
133d4016 JL |
291 | .disable = regulator_disable_regmap, |
292 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
293 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
852abad2 | 294 | .set_voltage_time_sel = regulator_set_voltage_time_sel, |
15282ba9 YSB |
295 | .set_suspend_mode = max77686_set_suspend_mode, |
296 | }; | |
297 | ||
404826cb | 298 | static const struct regulator_ops max77686_ldo_ops = { |
15282ba9 YSB |
299 | .list_voltage = regulator_list_voltage_linear, |
300 | .map_voltage = regulator_map_voltage_linear, | |
301 | .is_enabled = regulator_is_enabled_regmap, | |
302 | .enable = max77686_enable, | |
133d4016 JL |
303 | .disable = regulator_disable_regmap, |
304 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
305 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
852abad2 | 306 | .set_voltage_time_sel = regulator_set_voltage_time_sel, |
15282ba9 | 307 | .set_suspend_mode = max77686_ldo_set_suspend_mode, |
78ce6128 | 308 | .set_suspend_disable = max77686_set_suspend_disable, |
15282ba9 YSB |
309 | }; |
310 | ||
404826cb | 311 | static const struct regulator_ops max77686_buck1_ops = { |
15282ba9 YSB |
312 | .list_voltage = regulator_list_voltage_linear, |
313 | .map_voltage = regulator_map_voltage_linear, | |
314 | .is_enabled = regulator_is_enabled_regmap, | |
315 | .enable = max77686_enable, | |
316 | .disable = regulator_disable_regmap, | |
317 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
318 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
319 | .set_voltage_time_sel = regulator_set_voltage_time_sel, | |
78ce6128 | 320 | .set_suspend_disable = max77686_set_suspend_disable, |
133d4016 JL |
321 | }; |
322 | ||
404826cb | 323 | static const struct regulator_ops max77686_buck_dvs_ops = { |
133d4016 | 324 | .list_voltage = regulator_list_voltage_linear, |
2e3f7f26 | 325 | .map_voltage = regulator_map_voltage_linear, |
133d4016 | 326 | .is_enabled = regulator_is_enabled_regmap, |
6d2c896b | 327 | .enable = max77686_enable, |
133d4016 JL |
328 | .disable = regulator_disable_regmap, |
329 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
330 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
852abad2 | 331 | .set_voltage_time_sel = regulator_set_voltage_time_sel, |
f503071b | 332 | .set_ramp_delay = max77686_set_ramp_delay, |
78ce6128 | 333 | .set_suspend_disable = max77686_set_suspend_disable, |
133d4016 JL |
334 | }; |
335 | ||
336 | #define regulator_desc_ldo(num) { \ | |
337 | .name = "LDO"#num, \ | |
04803952 KK |
338 | .of_match = of_match_ptr("LDO"#num), \ |
339 | .regulators_node = of_match_ptr("voltage-regulators"), \ | |
3307e902 | 340 | .of_parse_cb = max77686_of_parse_cb, \ |
133d4016 JL |
341 | .id = MAX77686_LDO##num, \ |
342 | .ops = &max77686_ops, \ | |
343 | .type = REGULATOR_VOLTAGE, \ | |
344 | .owner = THIS_MODULE, \ | |
345 | .min_uV = MAX77686_LDO_MINUV, \ | |
346 | .uV_step = MAX77686_LDO_UVSTEP, \ | |
852abad2 | 347 | .ramp_delay = MAX77686_RAMP_DELAY, \ |
133d4016 JL |
348 | .n_voltages = MAX77686_VSEL_MASK + 1, \ |
349 | .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
350 | .vsel_mask = MAX77686_VSEL_MASK, \ | |
351 | .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
352 | .enable_mask = MAX77686_OPMODE_MASK \ | |
353 | << MAX77686_OPMODE_SHIFT, \ | |
354 | } | |
15282ba9 YSB |
355 | #define regulator_desc_lpm_ldo(num) { \ |
356 | .name = "LDO"#num, \ | |
04803952 KK |
357 | .of_match = of_match_ptr("LDO"#num), \ |
358 | .regulators_node = of_match_ptr("voltage-regulators"), \ | |
15282ba9 YSB |
359 | .id = MAX77686_LDO##num, \ |
360 | .ops = &max77686_ldo_ops, \ | |
361 | .type = REGULATOR_VOLTAGE, \ | |
362 | .owner = THIS_MODULE, \ | |
363 | .min_uV = MAX77686_LDO_MINUV, \ | |
364 | .uV_step = MAX77686_LDO_UVSTEP, \ | |
365 | .ramp_delay = MAX77686_RAMP_DELAY, \ | |
366 | .n_voltages = MAX77686_VSEL_MASK + 1, \ | |
367 | .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
368 | .vsel_mask = MAX77686_VSEL_MASK, \ | |
369 | .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
370 | .enable_mask = MAX77686_OPMODE_MASK \ | |
371 | << MAX77686_OPMODE_SHIFT, \ | |
372 | } | |
133d4016 | 373 | #define regulator_desc_ldo_low(num) { \ |
15282ba9 | 374 | .name = "LDO"#num, \ |
04803952 KK |
375 | .of_match = of_match_ptr("LDO"#num), \ |
376 | .regulators_node = of_match_ptr("voltage-regulators"), \ | |
15282ba9 YSB |
377 | .id = MAX77686_LDO##num, \ |
378 | .ops = &max77686_ldo_ops, \ | |
379 | .type = REGULATOR_VOLTAGE, \ | |
380 | .owner = THIS_MODULE, \ | |
381 | .min_uV = MAX77686_LDO_LOW_MINUV, \ | |
382 | .uV_step = MAX77686_LDO_LOW_UVSTEP, \ | |
383 | .ramp_delay = MAX77686_RAMP_DELAY, \ | |
384 | .n_voltages = MAX77686_VSEL_MASK + 1, \ | |
385 | .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
386 | .vsel_mask = MAX77686_VSEL_MASK, \ | |
387 | .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
388 | .enable_mask = MAX77686_OPMODE_MASK \ | |
389 | << MAX77686_OPMODE_SHIFT, \ | |
390 | } | |
391 | #define regulator_desc_ldo1_low(num) { \ | |
133d4016 | 392 | .name = "LDO"#num, \ |
04803952 KK |
393 | .of_match = of_match_ptr("LDO"#num), \ |
394 | .regulators_node = of_match_ptr("voltage-regulators"), \ | |
133d4016 JL |
395 | .id = MAX77686_LDO##num, \ |
396 | .ops = &max77686_ops, \ | |
397 | .type = REGULATOR_VOLTAGE, \ | |
398 | .owner = THIS_MODULE, \ | |
399 | .min_uV = MAX77686_LDO_LOW_MINUV, \ | |
400 | .uV_step = MAX77686_LDO_LOW_UVSTEP, \ | |
852abad2 | 401 | .ramp_delay = MAX77686_RAMP_DELAY, \ |
133d4016 JL |
402 | .n_voltages = MAX77686_VSEL_MASK + 1, \ |
403 | .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
404 | .vsel_mask = MAX77686_VSEL_MASK, \ | |
405 | .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ | |
406 | .enable_mask = MAX77686_OPMODE_MASK \ | |
407 | << MAX77686_OPMODE_SHIFT, \ | |
408 | } | |
409 | #define regulator_desc_buck(num) { \ | |
410 | .name = "BUCK"#num, \ | |
04803952 KK |
411 | .of_match = of_match_ptr("BUCK"#num), \ |
412 | .regulators_node = of_match_ptr("voltage-regulators"), \ | |
3307e902 | 413 | .of_parse_cb = max77686_of_parse_cb, \ |
133d4016 JL |
414 | .id = MAX77686_BUCK##num, \ |
415 | .ops = &max77686_ops, \ | |
416 | .type = REGULATOR_VOLTAGE, \ | |
417 | .owner = THIS_MODULE, \ | |
418 | .min_uV = MAX77686_BUCK_MINUV, \ | |
419 | .uV_step = MAX77686_BUCK_UVSTEP, \ | |
852abad2 | 420 | .ramp_delay = MAX77686_RAMP_DELAY, \ |
a9597305 | 421 | .enable_time = MAX77686_BUCK_ENABLE_TIME, \ |
133d4016 JL |
422 | .n_voltages = MAX77686_VSEL_MASK + 1, \ |
423 | .vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \ | |
424 | .vsel_mask = MAX77686_VSEL_MASK, \ | |
425 | .enable_reg = MAX77686_REG_BUCK5CTRL + (num - 5) * 2, \ | |
426 | .enable_mask = MAX77686_OPMODE_MASK, \ | |
427 | } | |
428 | #define regulator_desc_buck1(num) { \ | |
429 | .name = "BUCK"#num, \ | |
04803952 KK |
430 | .of_match = of_match_ptr("BUCK"#num), \ |
431 | .regulators_node = of_match_ptr("voltage-regulators"), \ | |
133d4016 | 432 | .id = MAX77686_BUCK##num, \ |
15282ba9 | 433 | .ops = &max77686_buck1_ops, \ |
133d4016 JL |
434 | .type = REGULATOR_VOLTAGE, \ |
435 | .owner = THIS_MODULE, \ | |
436 | .min_uV = MAX77686_BUCK_MINUV, \ | |
437 | .uV_step = MAX77686_BUCK_UVSTEP, \ | |
852abad2 | 438 | .ramp_delay = MAX77686_RAMP_DELAY, \ |
a9597305 | 439 | .enable_time = MAX77686_BUCK_ENABLE_TIME, \ |
133d4016 JL |
440 | .n_voltages = MAX77686_VSEL_MASK + 1, \ |
441 | .vsel_reg = MAX77686_REG_BUCK1OUT, \ | |
442 | .vsel_mask = MAX77686_VSEL_MASK, \ | |
443 | .enable_reg = MAX77686_REG_BUCK1CTRL, \ | |
444 | .enable_mask = MAX77686_OPMODE_MASK, \ | |
445 | } | |
446 | #define regulator_desc_buck_dvs(num) { \ | |
447 | .name = "BUCK"#num, \ | |
04803952 KK |
448 | .of_match = of_match_ptr("BUCK"#num), \ |
449 | .regulators_node = of_match_ptr("voltage-regulators"), \ | |
133d4016 | 450 | .id = MAX77686_BUCK##num, \ |
74adfee5 | 451 | .ops = &max77686_buck_dvs_ops, \ |
133d4016 JL |
452 | .type = REGULATOR_VOLTAGE, \ |
453 | .owner = THIS_MODULE, \ | |
454 | .min_uV = MAX77686_DVS_MINUV, \ | |
455 | .uV_step = MAX77686_DVS_UVSTEP, \ | |
852abad2 | 456 | .ramp_delay = MAX77686_DVS_RAMP_DELAY, \ |
a9597305 | 457 | .enable_time = MAX77686_DVS_ENABLE_TIME, \ |
133d4016 JL |
458 | .n_voltages = MAX77686_DVS_VSEL_MASK + 1, \ |
459 | .vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \ | |
460 | .vsel_mask = MAX77686_DVS_VSEL_MASK, \ | |
461 | .enable_reg = MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10, \ | |
462 | .enable_mask = MAX77686_OPMODE_MASK \ | |
463 | << MAX77686_OPMODE_BUCK234_SHIFT, \ | |
464 | } | |
465 | ||
73dbdf8f | 466 | static const struct regulator_desc regulators[] = { |
15282ba9 | 467 | regulator_desc_ldo1_low(1), |
133d4016 JL |
468 | regulator_desc_ldo_low(2), |
469 | regulator_desc_ldo(3), | |
470 | regulator_desc_ldo(4), | |
471 | regulator_desc_ldo(5), | |
472 | regulator_desc_ldo_low(6), | |
473 | regulator_desc_ldo_low(7), | |
474 | regulator_desc_ldo_low(8), | |
475 | regulator_desc_ldo(9), | |
15282ba9 YSB |
476 | regulator_desc_lpm_ldo(10), |
477 | regulator_desc_lpm_ldo(11), | |
478 | regulator_desc_lpm_ldo(12), | |
133d4016 | 479 | regulator_desc_ldo(13), |
15282ba9 | 480 | regulator_desc_lpm_ldo(14), |
133d4016 | 481 | regulator_desc_ldo_low(15), |
15282ba9 | 482 | regulator_desc_lpm_ldo(16), |
133d4016 JL |
483 | regulator_desc_ldo(17), |
484 | regulator_desc_ldo(18), | |
485 | regulator_desc_ldo(19), | |
486 | regulator_desc_ldo(20), | |
487 | regulator_desc_ldo(21), | |
488 | regulator_desc_ldo(22), | |
489 | regulator_desc_ldo(23), | |
490 | regulator_desc_ldo(24), | |
491 | regulator_desc_ldo(25), | |
492 | regulator_desc_ldo(26), | |
493 | regulator_desc_buck1(1), | |
494 | regulator_desc_buck_dvs(2), | |
495 | regulator_desc_buck_dvs(3), | |
496 | regulator_desc_buck_dvs(4), | |
497 | regulator_desc_buck(5), | |
498 | regulator_desc_buck(6), | |
499 | regulator_desc_buck(7), | |
500 | regulator_desc_buck(8), | |
501 | regulator_desc_buck(9), | |
502 | }; | |
503 | ||
a5023574 | 504 | static int max77686_pmic_probe(struct platform_device *pdev) |
133d4016 JL |
505 | { |
506 | struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); | |
133d4016 | 507 | struct max77686_data *max77686; |
04803952 | 508 | int i; |
c59d2a6b | 509 | struct regulator_config config = { }; |
133d4016 JL |
510 | |
511 | dev_dbg(&pdev->dev, "%s\n", __func__); | |
512 | ||
513 | max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data), | |
514 | GFP_KERNEL); | |
515 | if (!max77686) | |
516 | return -ENOMEM; | |
517 | ||
96392c3d | 518 | max77686->dev = &pdev->dev; |
04803952 | 519 | config.dev = iodev->dev; |
f503071b | 520 | config.regmap = iodev->regmap; |
6d2c896b | 521 | config.driver_data = max77686; |
133d4016 JL |
522 | platform_set_drvdata(pdev, max77686); |
523 | ||
ab0d1cbe | 524 | for (i = 0; i < MAX77686_REGULATORS; i++) { |
b0c13e80 | 525 | struct regulator_dev *rdev; |
eca29da9 | 526 | int id = regulators[i].id; |
b0c13e80 | 527 | |
4524df83 | 528 | max77686->opmode[id] = MAX77686_NORMAL; |
b0c13e80 | 529 | rdev = devm_regulator_register(&pdev->dev, |
44815b4a | 530 | ®ulators[i], &config); |
b0c13e80 | 531 | if (IS_ERR(rdev)) { |
04803952 | 532 | int ret = PTR_ERR(rdev); |
f503071b | 533 | dev_err(&pdev->dev, |
04803952 KK |
534 | "regulator init failed for %d: %d\n", i, ret); |
535 | return ret; | |
133d4016 | 536 | } |
133d4016 | 537 | } |
ab0d1cbe | 538 | |
133d4016 JL |
539 | return 0; |
540 | } | |
541 | ||
542 | static const struct platform_device_id max77686_pmic_id[] = { | |
543 | {"max77686-pmic", 0}, | |
544 | { }, | |
545 | }; | |
546 | MODULE_DEVICE_TABLE(platform, max77686_pmic_id); | |
547 | ||
548 | static struct platform_driver max77686_pmic_driver = { | |
549 | .driver = { | |
550 | .name = "max77686-pmic", | |
133d4016 JL |
551 | }, |
552 | .probe = max77686_pmic_probe, | |
133d4016 JL |
553 | .id_table = max77686_pmic_id, |
554 | }; | |
555 | ||
314a8203 | 556 | module_platform_driver(max77686_pmic_driver); |
133d4016 JL |
557 | |
558 | MODULE_DESCRIPTION("MAXIM 77686 Regulator Driver"); | |
559 | MODULE_AUTHOR("Chiwoong Byun <woong.byun@samsung.com>"); | |
560 | MODULE_LICENSE("GPL"); |