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Sangbeom Kim9767ec72012-01-09 19:10:25 +09001/*
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>
Sangbeom Kim9767ec72012-01-09 19:10:25 +090015#include <linux/err.h>
16#include <linux/gpio.h>
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -080017#include <linux/of_gpio.h>
Sangbeom Kim9767ec72012-01-09 19:10:25 +090018#include <linux/slab.h>
19#include <linux/module.h>
20#include <linux/platform_device.h>
21#include <linux/regulator/driver.h>
22#include <linux/regulator/machine.h>
Sangbeom Kim54227bc2012-07-11 21:07:16 +090023#include <linux/mfd/samsung/core.h>
24#include <linux/mfd/samsung/s5m8767.h>
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -080025#include <linux/regulator/of_regulator.h>
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +010026#include <linux/regmap.h>
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -080027
28#define S5M8767_OPMODE_NORMAL_MODE 0x1
Sangbeom Kim9767ec72012-01-09 19:10:25 +090029
30struct s5m8767_info {
31 struct device *dev;
Sangbeom Kim63063bf2012-07-11 21:06:55 +090032 struct sec_pmic_dev *iodev;
Sangbeom Kim9767ec72012-01-09 19:10:25 +090033 int num_regulators;
34 struct regulator_dev **rdev;
Sangbeom Kim63063bf2012-07-11 21:06:55 +090035 struct sec_opmode_data *opmode;
Sangbeom Kim9767ec72012-01-09 19:10:25 +090036
37 int ramp_delay;
38 bool buck2_ramp;
39 bool buck3_ramp;
40 bool buck4_ramp;
41
42 bool buck2_gpiodvs;
43 bool buck3_gpiodvs;
44 bool buck4_gpiodvs;
45 u8 buck2_vol[8];
46 u8 buck3_vol[8];
47 u8 buck4_vol[8];
48 int buck_gpios[3];
Sangbeom Kimc848bc82012-06-18 09:49:20 +090049 int buck_ds[3];
Sangbeom Kim9767ec72012-01-09 19:10:25 +090050 int buck_gpioindex;
51};
52
Sangbeom Kim63063bf2012-07-11 21:06:55 +090053struct sec_voltage_desc {
Sangbeom Kim9767ec72012-01-09 19:10:25 +090054 int max;
55 int min;
56 int step;
57};
58
Sangbeom Kim63063bf2012-07-11 21:06:55 +090059static const struct sec_voltage_desc buck_voltage_val1 = {
Sangbeom Kim9767ec72012-01-09 19:10:25 +090060 .max = 2225000,
61 .min = 650000,
62 .step = 6250,
63};
64
Sangbeom Kim63063bf2012-07-11 21:06:55 +090065static const struct sec_voltage_desc buck_voltage_val2 = {
Sangbeom Kim9767ec72012-01-09 19:10:25 +090066 .max = 1600000,
67 .min = 600000,
68 .step = 6250,
69};
70
Sangbeom Kim63063bf2012-07-11 21:06:55 +090071static const struct sec_voltage_desc buck_voltage_val3 = {
Sangbeom Kim9767ec72012-01-09 19:10:25 +090072 .max = 3000000,
73 .min = 750000,
74 .step = 12500,
75};
76
Sangbeom Kim63063bf2012-07-11 21:06:55 +090077static const struct sec_voltage_desc ldo_voltage_val1 = {
Sangbeom Kim9767ec72012-01-09 19:10:25 +090078 .max = 3950000,
79 .min = 800000,
80 .step = 50000,
81};
82
Sangbeom Kim63063bf2012-07-11 21:06:55 +090083static const struct sec_voltage_desc ldo_voltage_val2 = {
Sangbeom Kim9767ec72012-01-09 19:10:25 +090084 .max = 2375000,
85 .min = 800000,
86 .step = 25000,
87};
88
Sangbeom Kim63063bf2012-07-11 21:06:55 +090089static const struct sec_voltage_desc *reg_voltage_map[] = {
Sangbeom Kim9767ec72012-01-09 19:10:25 +090090 [S5M8767_LDO1] = &ldo_voltage_val2,
91 [S5M8767_LDO2] = &ldo_voltage_val2,
92 [S5M8767_LDO3] = &ldo_voltage_val1,
93 [S5M8767_LDO4] = &ldo_voltage_val1,
94 [S5M8767_LDO5] = &ldo_voltage_val1,
95 [S5M8767_LDO6] = &ldo_voltage_val2,
96 [S5M8767_LDO7] = &ldo_voltage_val2,
97 [S5M8767_LDO8] = &ldo_voltage_val2,
98 [S5M8767_LDO9] = &ldo_voltage_val1,
99 [S5M8767_LDO10] = &ldo_voltage_val1,
100 [S5M8767_LDO11] = &ldo_voltage_val1,
101 [S5M8767_LDO12] = &ldo_voltage_val1,
102 [S5M8767_LDO13] = &ldo_voltage_val1,
103 [S5M8767_LDO14] = &ldo_voltage_val1,
104 [S5M8767_LDO15] = &ldo_voltage_val2,
105 [S5M8767_LDO16] = &ldo_voltage_val1,
106 [S5M8767_LDO17] = &ldo_voltage_val1,
107 [S5M8767_LDO18] = &ldo_voltage_val1,
108 [S5M8767_LDO19] = &ldo_voltage_val1,
109 [S5M8767_LDO20] = &ldo_voltage_val1,
110 [S5M8767_LDO21] = &ldo_voltage_val1,
111 [S5M8767_LDO22] = &ldo_voltage_val1,
112 [S5M8767_LDO23] = &ldo_voltage_val1,
113 [S5M8767_LDO24] = &ldo_voltage_val1,
114 [S5M8767_LDO25] = &ldo_voltage_val1,
115 [S5M8767_LDO26] = &ldo_voltage_val1,
116 [S5M8767_LDO27] = &ldo_voltage_val1,
117 [S5M8767_LDO28] = &ldo_voltage_val1,
118 [S5M8767_BUCK1] = &buck_voltage_val1,
119 [S5M8767_BUCK2] = &buck_voltage_val2,
120 [S5M8767_BUCK3] = &buck_voltage_val2,
121 [S5M8767_BUCK4] = &buck_voltage_val2,
122 [S5M8767_BUCK5] = &buck_voltage_val1,
123 [S5M8767_BUCK6] = &buck_voltage_val1,
Krzysztof Kozlowski463616e2013-12-10 10:09:43 +0100124 [S5M8767_BUCK7] = &buck_voltage_val3,
125 [S5M8767_BUCK8] = &buck_voltage_val3,
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900126 [S5M8767_BUCK9] = &buck_voltage_val3,
127};
128
Mark Brown5ceba7b2012-05-09 20:37:51 +0100129static unsigned int s5m8767_opmode_reg[][4] = {
Sangbeom Kim7e44bb82012-03-09 17:55:34 +0900130 /* {OFF, ON, LOWPOWER, SUSPEND} */
131 /* LDO1 ... LDO28 */
132 {0x0, 0x3, 0x2, 0x1}, /* LDO1 */
133 {0x0, 0x3, 0x2, 0x1},
134 {0x0, 0x3, 0x2, 0x1},
135 {0x0, 0x0, 0x0, 0x0},
136 {0x0, 0x3, 0x2, 0x1}, /* LDO5 */
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}, /* LDO10 */
142 {0x0, 0x3, 0x2, 0x1},
143 {0x0, 0x3, 0x2, 0x1},
144 {0x0, 0x3, 0x2, 0x1},
145 {0x0, 0x3, 0x2, 0x1},
146 {0x0, 0x3, 0x2, 0x1}, /* LDO15 */
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}, /* LDO20 */
152 {0x0, 0x3, 0x2, 0x1},
153 {0x0, 0x3, 0x2, 0x1},
154 {0x0, 0x0, 0x0, 0x0},
155 {0x0, 0x3, 0x2, 0x1},
156 {0x0, 0x3, 0x2, 0x1}, /* LDO25 */
157 {0x0, 0x3, 0x2, 0x1},
158 {0x0, 0x3, 0x2, 0x1},
159 {0x0, 0x3, 0x2, 0x1}, /* LDO28 */
160
161 /* BUCK1 ... BUCK9 */
162 {0x0, 0x3, 0x1, 0x1}, /* BUCK1 */
163 {0x0, 0x3, 0x1, 0x1},
164 {0x0, 0x3, 0x1, 0x1},
165 {0x0, 0x3, 0x1, 0x1},
166 {0x0, 0x3, 0x2, 0x1}, /* BUCK5 */
167 {0x0, 0x3, 0x1, 0x1},
168 {0x0, 0x3, 0x1, 0x1},
169 {0x0, 0x3, 0x1, 0x1},
170 {0x0, 0x3, 0x1, 0x1}, /* BUCK9 */
171};
172
173static int s5m8767_get_register(struct regulator_dev *rdev, int *reg,
174 int *enable_ctrl)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900175{
Amit Daniel Kachhap9bb096f2012-12-10 18:19:39 +0530176 int i, reg_id = rdev_get_id(rdev);
Sangbeom Kim7e44bb82012-03-09 17:55:34 +0900177 unsigned int mode;
178 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900179
180 switch (reg_id) {
181 case S5M8767_LDO1 ... S5M8767_LDO2:
182 *reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
183 break;
184 case S5M8767_LDO3 ... S5M8767_LDO28:
185 *reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
186 break;
187 case S5M8767_BUCK1:
188 *reg = S5M8767_REG_BUCK1CTRL1;
189 break;
190 case S5M8767_BUCK2 ... S5M8767_BUCK4:
191 *reg = S5M8767_REG_BUCK2CTRL + (reg_id - S5M8767_BUCK2) * 9;
192 break;
193 case S5M8767_BUCK5:
194 *reg = S5M8767_REG_BUCK5CTRL1;
195 break;
196 case S5M8767_BUCK6 ... S5M8767_BUCK9:
197 *reg = S5M8767_REG_BUCK6CTRL1 + (reg_id - S5M8767_BUCK6) * 2;
198 break;
199 default:
200 return -EINVAL;
201 }
202
Amit Daniel Kachhap9bb096f2012-12-10 18:19:39 +0530203 for (i = 0; i < s5m8767->num_regulators; i++) {
204 if (s5m8767->opmode[i].id == reg_id) {
205 mode = s5m8767->opmode[i].mode;
206 break;
207 }
208 }
209
210 if (i < s5m8767->num_regulators)
211 *enable_ctrl =
212 s5m8767_opmode_reg[reg_id][mode] << S5M8767_ENCTRL_SHIFT;
213
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900214 return 0;
215}
216
217static int s5m8767_reg_is_enabled(struct regulator_dev *rdev)
218{
219 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
220 int ret, reg;
Krzysztof Kozlowski79b53d12013-12-10 10:09:42 +0100221 int enable_ctrl;
Inderpal Singh3ef30392012-12-12 08:57:00 +0530222 unsigned int val;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900223
Sangbeom Kim7e44bb82012-03-09 17:55:34 +0900224 ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900225 if (ret == -EINVAL)
226 return 1;
227 else if (ret)
228 return ret;
229
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100230 ret = regmap_read(s5m8767->iodev->regmap_pmic, reg, &val);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900231 if (ret)
232 return ret;
233
Krzysztof Kozlowski79b53d12013-12-10 10:09:42 +0100234 return (val & S5M8767_ENCTRL_MASK) == enable_ctrl;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900235}
236
237static int s5m8767_reg_enable(struct regulator_dev *rdev)
238{
239 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
240 int ret, reg;
Krzysztof Kozlowski79b53d12013-12-10 10:09:42 +0100241 int enable_ctrl;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900242
Sangbeom Kim7e44bb82012-03-09 17:55:34 +0900243 ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900244 if (ret)
245 return ret;
246
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100247 return regmap_update_bits(s5m8767->iodev->regmap_pmic, reg,
248 S5M8767_ENCTRL_MASK, enable_ctrl);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900249}
250
251static int s5m8767_reg_disable(struct regulator_dev *rdev)
252{
253 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100254 int ret, reg, enable_ctrl;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900255
Sangbeom Kim7e44bb82012-03-09 17:55:34 +0900256 ret = s5m8767_get_register(rdev, &reg, &enable_ctrl);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900257 if (ret)
258 return ret;
259
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100260 return regmap_update_bits(s5m8767->iodev->regmap_pmic, reg,
261 S5M8767_ENCTRL_MASK, ~S5M8767_ENCTRL_MASK);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900262}
263
Axel Lin31a932e2013-01-18 09:55:06 +0800264static int s5m8767_get_vsel_reg(int reg_id, struct s5m8767_info *s5m8767)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900265{
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900266 int reg;
267
268 switch (reg_id) {
269 case S5M8767_LDO1 ... S5M8767_LDO2:
270 reg = S5M8767_REG_LDO1CTRL + (reg_id - S5M8767_LDO1);
271 break;
272 case S5M8767_LDO3 ... S5M8767_LDO28:
273 reg = S5M8767_REG_LDO3CTRL + (reg_id - S5M8767_LDO3);
274 break;
275 case S5M8767_BUCK1:
276 reg = S5M8767_REG_BUCK1CTRL2;
277 break;
278 case S5M8767_BUCK2:
Amit Daniel Kachhapda130ab2012-12-10 18:19:40 +0530279 reg = S5M8767_REG_BUCK2DVS1;
Axel Lin0a416852012-03-10 10:59:43 +0800280 if (s5m8767->buck2_gpiodvs)
281 reg += s5m8767->buck_gpioindex;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900282 break;
283 case S5M8767_BUCK3:
Amit Daniel Kachhapda130ab2012-12-10 18:19:40 +0530284 reg = S5M8767_REG_BUCK3DVS1;
Axel Lin0a416852012-03-10 10:59:43 +0800285 if (s5m8767->buck3_gpiodvs)
286 reg += s5m8767->buck_gpioindex;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900287 break;
288 case S5M8767_BUCK4:
Amit Daniel Kachhapda130ab2012-12-10 18:19:40 +0530289 reg = S5M8767_REG_BUCK4DVS1;
Axel Lin0a416852012-03-10 10:59:43 +0800290 if (s5m8767->buck4_gpiodvs)
291 reg += s5m8767->buck_gpioindex;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900292 break;
293 case S5M8767_BUCK5:
294 reg = S5M8767_REG_BUCK5CTRL2;
295 break;
296 case S5M8767_BUCK6 ... S5M8767_BUCK9:
297 reg = S5M8767_REG_BUCK6CTRL2 + (reg_id - S5M8767_BUCK6) * 2;
298 break;
299 default:
300 return -EINVAL;
301 }
302
Axel Lin31a932e2013-01-18 09:55:06 +0800303 return reg;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900304}
305
Axel Lin854f73e2012-12-29 09:38:50 +0800306static int s5m8767_convert_voltage_to_sel(const struct sec_voltage_desc *desc,
307 int min_vol)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900308{
Axel Lin5b5e9772012-03-09 11:31:08 +0800309 int selector = 0;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900310
311 if (desc == NULL)
312 return -EINVAL;
313
Axel Lin854f73e2012-12-29 09:38:50 +0800314 if (min_vol > desc->max)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900315 return -EINVAL;
316
Axel Lin94e85a32012-04-13 09:30:05 +0800317 if (min_vol < desc->min)
318 min_vol = desc->min;
319
320 selector = DIV_ROUND_UP(min_vol - desc->min, desc->step);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900321
Axel Lin854f73e2012-12-29 09:38:50 +0800322 if (desc->min + desc->step * selector > desc->max)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900323 return -EINVAL;
324
Axel Lin5b5e9772012-03-09 11:31:08 +0800325 return selector;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900326}
327
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900328static inline int s5m8767_set_high(struct s5m8767_info *s5m8767)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900329{
330 int temp_index = s5m8767->buck_gpioindex;
331
332 gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
333 gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
334 gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900335
336 return 0;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900337}
338
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900339static inline int s5m8767_set_low(struct s5m8767_info *s5m8767)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900340{
341 int temp_index = s5m8767->buck_gpioindex;
342
343 gpio_set_value(s5m8767->buck_gpios[2], temp_index & 0x1);
344 gpio_set_value(s5m8767->buck_gpios[1], (temp_index >> 1) & 0x1);
345 gpio_set_value(s5m8767->buck_gpios[0], (temp_index >> 2) & 0x1);
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900346
347 return 0;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900348}
349
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900350static int s5m8767_set_voltage_sel(struct regulator_dev *rdev,
351 unsigned selector)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900352{
353 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
Axel Lin321d2ab2012-04-10 14:05:44 +0800354 int reg_id = rdev_get_id(rdev);
Axel Lin31a932e2013-01-18 09:55:06 +0800355 int old_index, index = 0;
Axel Lin321d2ab2012-04-10 14:05:44 +0800356 u8 *buck234_vol = NULL;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900357
358 switch (reg_id) {
Axel Lin321d2ab2012-04-10 14:05:44 +0800359 case S5M8767_LDO1 ... S5M8767_LDO28:
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900360 break;
Axel Lin321d2ab2012-04-10 14:05:44 +0800361 case S5M8767_BUCK1 ... S5M8767_BUCK6:
Axel Lin321d2ab2012-04-10 14:05:44 +0800362 if (reg_id == S5M8767_BUCK2 && s5m8767->buck2_gpiodvs)
363 buck234_vol = &s5m8767->buck2_vol[0];
364 else if (reg_id == S5M8767_BUCK3 && s5m8767->buck3_gpiodvs)
365 buck234_vol = &s5m8767->buck3_vol[0];
366 else if (reg_id == S5M8767_BUCK4 && s5m8767->buck4_gpiodvs)
367 buck234_vol = &s5m8767->buck4_vol[0];
368 break;
369 case S5M8767_BUCK7 ... S5M8767_BUCK8:
370 return -EINVAL;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900371 case S5M8767_BUCK9:
Axel Lin321d2ab2012-04-10 14:05:44 +0800372 break;
373 default:
374 return -EINVAL;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900375 }
376
Axel Lin321d2ab2012-04-10 14:05:44 +0800377 /* buck234_vol != NULL means to control buck234 voltage via DVS GPIO */
378 if (buck234_vol) {
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900379 while (*buck234_vol != selector) {
Axel Lin321d2ab2012-04-10 14:05:44 +0800380 buck234_vol++;
381 index++;
382 }
383 old_index = s5m8767->buck_gpioindex;
384 s5m8767->buck_gpioindex = index;
385
386 if (index > old_index)
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900387 return s5m8767_set_high(s5m8767);
Axel Lin321d2ab2012-04-10 14:05:44 +0800388 else
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900389 return s5m8767_set_low(s5m8767);
Axel Lin321d2ab2012-04-10 14:05:44 +0800390 } else {
Axel Lin31a932e2013-01-18 09:55:06 +0800391 return regulator_set_voltage_sel_regmap(rdev, selector);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900392 }
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900393}
394
395static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev,
396 unsigned int old_sel,
397 unsigned int new_sel)
398{
399 struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
Sangbeom Kim63063bf2012-07-11 21:06:55 +0900400 const struct sec_voltage_desc *desc;
Axel Lin20a14b82012-01-31 15:13:31 +0800401 int reg_id = rdev_get_id(rdev);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900402
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900403 desc = reg_voltage_map[reg_id];
404
Sangbeom Kim9d88fc02012-06-13 17:27:16 +0900405 if ((old_sel < new_sel) && s5m8767->ramp_delay)
Axel Lin89e0f0e2012-02-24 14:52:45 +0800406 return DIV_ROUND_UP(desc->step * (new_sel - old_sel),
Sangbeom Kim0f8b9c72012-03-09 16:28:10 +0900407 s5m8767->ramp_delay * 1000);
Axel Lin89e0f0e2012-02-24 14:52:45 +0800408 return 0;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900409}
410
Axel Lind35aad02012-04-10 14:07:15 +0800411static struct regulator_ops s5m8767_ops = {
Axel Line2eb1692012-06-18 14:25:27 +0800412 .list_voltage = regulator_list_voltage_linear,
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900413 .is_enabled = s5m8767_reg_is_enabled,
414 .enable = s5m8767_reg_enable,
415 .disable = s5m8767_reg_disable,
Axel Lin31a932e2013-01-18 09:55:06 +0800416 .get_voltage_sel = regulator_get_voltage_sel_regmap,
Sangbeom Kimdf2643c2012-06-13 17:28:18 +0900417 .set_voltage_sel = s5m8767_set_voltage_sel,
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900418 .set_voltage_time_sel = s5m8767_set_voltage_time_sel,
419};
420
Axel Line2eb1692012-06-18 14:25:27 +0800421static struct regulator_ops s5m8767_buck78_ops = {
Krzysztof Kozlowski463616e2013-12-10 10:09:43 +0100422 .list_voltage = regulator_list_voltage_linear,
Axel Line2eb1692012-06-18 14:25:27 +0800423 .is_enabled = s5m8767_reg_is_enabled,
424 .enable = s5m8767_reg_enable,
425 .disable = s5m8767_reg_disable,
Krzysztof Kozlowski463616e2013-12-10 10:09:43 +0100426 .get_voltage_sel = regulator_get_voltage_sel_regmap,
427 .set_voltage_sel = regulator_set_voltage_sel_regmap,
Axel Line2eb1692012-06-18 14:25:27 +0800428};
429
Axel Lin65896e72012-04-10 14:08:19 +0800430#define s5m8767_regulator_desc(_name) { \
431 .name = #_name, \
432 .id = S5M8767_##_name, \
433 .ops = &s5m8767_ops, \
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900434 .type = REGULATOR_VOLTAGE, \
435 .owner = THIS_MODULE, \
436}
437
Axel Line2eb1692012-06-18 14:25:27 +0800438#define s5m8767_regulator_buck78_desc(_name) { \
439 .name = #_name, \
440 .id = S5M8767_##_name, \
441 .ops = &s5m8767_buck78_ops, \
442 .type = REGULATOR_VOLTAGE, \
443 .owner = THIS_MODULE, \
444}
445
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900446static struct regulator_desc regulators[] = {
Axel Lin65896e72012-04-10 14:08:19 +0800447 s5m8767_regulator_desc(LDO1),
448 s5m8767_regulator_desc(LDO2),
449 s5m8767_regulator_desc(LDO3),
450 s5m8767_regulator_desc(LDO4),
451 s5m8767_regulator_desc(LDO5),
452 s5m8767_regulator_desc(LDO6),
453 s5m8767_regulator_desc(LDO7),
454 s5m8767_regulator_desc(LDO8),
455 s5m8767_regulator_desc(LDO9),
456 s5m8767_regulator_desc(LDO10),
457 s5m8767_regulator_desc(LDO11),
458 s5m8767_regulator_desc(LDO12),
459 s5m8767_regulator_desc(LDO13),
460 s5m8767_regulator_desc(LDO14),
461 s5m8767_regulator_desc(LDO15),
462 s5m8767_regulator_desc(LDO16),
463 s5m8767_regulator_desc(LDO17),
464 s5m8767_regulator_desc(LDO18),
465 s5m8767_regulator_desc(LDO19),
466 s5m8767_regulator_desc(LDO20),
467 s5m8767_regulator_desc(LDO21),
468 s5m8767_regulator_desc(LDO22),
469 s5m8767_regulator_desc(LDO23),
470 s5m8767_regulator_desc(LDO24),
471 s5m8767_regulator_desc(LDO25),
472 s5m8767_regulator_desc(LDO26),
473 s5m8767_regulator_desc(LDO27),
474 s5m8767_regulator_desc(LDO28),
475 s5m8767_regulator_desc(BUCK1),
476 s5m8767_regulator_desc(BUCK2),
477 s5m8767_regulator_desc(BUCK3),
478 s5m8767_regulator_desc(BUCK4),
479 s5m8767_regulator_desc(BUCK5),
480 s5m8767_regulator_desc(BUCK6),
Axel Line2eb1692012-06-18 14:25:27 +0800481 s5m8767_regulator_buck78_desc(BUCK7),
482 s5m8767_regulator_buck78_desc(BUCK8),
Axel Lin65896e72012-04-10 14:08:19 +0800483 s5m8767_regulator_desc(BUCK9),
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900484};
485
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800486#ifdef CONFIG_OF
487static int s5m8767_pmic_dt_parse_dvs_gpio(struct sec_pmic_dev *iodev,
488 struct sec_platform_data *pdata,
489 struct device_node *pmic_np)
490{
491 int i, gpio;
492
493 for (i = 0; i < 3; i++) {
494 gpio = of_get_named_gpio(pmic_np,
495 "s5m8767,pmic-buck-dvs-gpios", i);
496 if (!gpio_is_valid(gpio)) {
497 dev_err(iodev->dev, "invalid gpio[%d]: %d\n", i, gpio);
498 return -EINVAL;
499 }
500 pdata->buck_gpios[i] = gpio;
501 }
502 return 0;
503}
504
505static int s5m8767_pmic_dt_parse_ds_gpio(struct sec_pmic_dev *iodev,
506 struct sec_platform_data *pdata,
507 struct device_node *pmic_np)
508{
509 int i, gpio;
510
511 for (i = 0; i < 3; i++) {
512 gpio = of_get_named_gpio(pmic_np,
513 "s5m8767,pmic-buck-ds-gpios", i);
514 if (!gpio_is_valid(gpio)) {
515 dev_err(iodev->dev, "invalid gpio[%d]: %d\n", i, gpio);
516 return -EINVAL;
517 }
518 pdata->buck_ds[i] = gpio;
519 }
520 return 0;
521}
522
Axel Lincbb0ed42013-02-13 09:29:45 +0800523static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800524 struct sec_platform_data *pdata)
525{
Axel Lincbb0ed42013-02-13 09:29:45 +0800526 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800527 struct device_node *pmic_np, *regulators_np, *reg_np;
528 struct sec_regulator_data *rdata;
529 struct sec_opmode_data *rmode;
Chanwoo Choi04f9f062013-10-10 10:41:36 +0900530 unsigned int i, dvs_voltage_nr = 8, ret;
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800531
532 pmic_np = iodev->dev->of_node;
533 if (!pmic_np) {
534 dev_err(iodev->dev, "could not find pmic sub-node\n");
535 return -ENODEV;
536 }
537
Sachin Kamat4e52c032014-02-13 17:05:06 +0530538 regulators_np = of_get_child_by_name(pmic_np, "regulators");
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800539 if (!regulators_np) {
540 dev_err(iodev->dev, "could not find regulators sub-node\n");
541 return -EINVAL;
542 }
543
544 /* count the number of regulators to be supported in pmic */
Axel Lin1f91b6f2013-02-06 10:55:05 +0800545 pdata->num_regulators = of_get_child_count(regulators_np);
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800546
Axel Lincbb0ed42013-02-13 09:29:45 +0800547 rdata = devm_kzalloc(&pdev->dev, sizeof(*rdata) *
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800548 pdata->num_regulators, GFP_KERNEL);
549 if (!rdata) {
550 dev_err(iodev->dev,
551 "could not allocate memory for regulator data\n");
552 return -ENOMEM;
553 }
554
Axel Lincbb0ed42013-02-13 09:29:45 +0800555 rmode = devm_kzalloc(&pdev->dev, sizeof(*rmode) *
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800556 pdata->num_regulators, GFP_KERNEL);
Julia Lawall720a9712013-02-24 12:55:34 +0100557 if (!rmode) {
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800558 dev_err(iodev->dev,
559 "could not allocate memory for regulator mode\n");
560 return -ENOMEM;
561 }
562
563 pdata->regulators = rdata;
564 pdata->opmode = rmode;
565 for_each_child_of_node(regulators_np, reg_np) {
566 for (i = 0; i < ARRAY_SIZE(regulators); i++)
567 if (!of_node_cmp(reg_np->name, regulators[i].name))
568 break;
569
570 if (i == ARRAY_SIZE(regulators)) {
571 dev_warn(iodev->dev,
572 "don't know how to configure regulator %s\n",
573 reg_np->name);
574 continue;
575 }
576
577 rdata->id = i;
578 rdata->initdata = of_get_regulator_init_data(
Axel Lincbb0ed42013-02-13 09:29:45 +0800579 &pdev->dev, reg_np);
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800580 rdata->reg_node = reg_np;
581 rdata++;
582 rmode->id = i;
583 if (of_property_read_u32(reg_np, "op_mode",
584 &rmode->mode)) {
585 dev_warn(iodev->dev,
586 "no op_mode property property at %s\n",
587 reg_np->full_name);
588
589 rmode->mode = S5M8767_OPMODE_NORMAL_MODE;
590 }
591 rmode++;
592 }
593
Sachin Kamatb7db01f2014-02-13 17:05:07 +0530594 of_node_put(regulators_np);
595
Chanwoo Choi04f9f062013-10-10 10:41:36 +0900596 if (of_get_property(pmic_np, "s5m8767,pmic-buck2-uses-gpio-dvs", NULL)) {
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800597 pdata->buck2_gpiodvs = true;
598
Chanwoo Choi04f9f062013-10-10 10:41:36 +0900599 if (of_property_read_u32_array(pmic_np,
600 "s5m8767,pmic-buck2-dvs-voltage",
601 pdata->buck2_voltage, dvs_voltage_nr)) {
602 dev_err(iodev->dev, "buck2 voltages not specified\n");
603 return -EINVAL;
604 }
605 }
606
607 if (of_get_property(pmic_np, "s5m8767,pmic-buck3-uses-gpio-dvs", NULL)) {
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800608 pdata->buck3_gpiodvs = true;
609
Chanwoo Choi04f9f062013-10-10 10:41:36 +0900610 if (of_property_read_u32_array(pmic_np,
611 "s5m8767,pmic-buck3-dvs-voltage",
612 pdata->buck3_voltage, dvs_voltage_nr)) {
613 dev_err(iodev->dev, "buck3 voltages not specified\n");
614 return -EINVAL;
615 }
616 }
617
618 if (of_get_property(pmic_np, "s5m8767,pmic-buck4-uses-gpio-dvs", NULL)) {
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800619 pdata->buck4_gpiodvs = true;
620
Chanwoo Choi04f9f062013-10-10 10:41:36 +0900621 if (of_property_read_u32_array(pmic_np,
622 "s5m8767,pmic-buck4-dvs-voltage",
623 pdata->buck4_voltage, dvs_voltage_nr)) {
624 dev_err(iodev->dev, "buck4 voltages not specified\n");
625 return -EINVAL;
626 }
627 }
628
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800629 if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
630 pdata->buck4_gpiodvs) {
631 ret = s5m8767_pmic_dt_parse_dvs_gpio(iodev, pdata, pmic_np);
632 if (ret)
633 return -EINVAL;
634
635 if (of_property_read_u32(pmic_np,
636 "s5m8767,pmic-buck-default-dvs-idx",
637 &pdata->buck_default_idx)) {
638 pdata->buck_default_idx = 0;
639 } else {
640 if (pdata->buck_default_idx >= 8) {
641 pdata->buck_default_idx = 0;
642 dev_info(iodev->dev,
643 "invalid value for default dvs index, use 0\n");
644 }
645 }
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800646 }
647
648 ret = s5m8767_pmic_dt_parse_ds_gpio(iodev, pdata, pmic_np);
649 if (ret)
650 return -EINVAL;
651
Chanwoo Choi033054e2013-10-10 10:41:35 +0900652 if (of_get_property(pmic_np, "s5m8767,pmic-buck2-ramp-enable", NULL))
653 pdata->buck2_ramp_enable = true;
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800654
Chanwoo Choi033054e2013-10-10 10:41:35 +0900655 if (of_get_property(pmic_np, "s5m8767,pmic-buck3-ramp-enable", NULL))
656 pdata->buck3_ramp_enable = true;
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800657
Chanwoo Choi033054e2013-10-10 10:41:35 +0900658 if (of_get_property(pmic_np, "s5m8767,pmic-buck4-ramp-enable", NULL))
659 pdata->buck4_ramp_enable = true;
660
661 if (pdata->buck2_ramp_enable || pdata->buck3_ramp_enable
662 || pdata->buck4_ramp_enable) {
663 if (of_property_read_u32(pmic_np, "s5m8767,pmic-buck-ramp-delay",
664 &pdata->buck_ramp_delay))
665 pdata->buck_ramp_delay = 0;
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800666 }
667
668 return 0;
669}
670#else
Axel Lincbb0ed42013-02-13 09:29:45 +0800671static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800672 struct sec_platform_data *pdata)
673{
674 return 0;
675}
676#endif /* CONFIG_OF */
677
Bill Pembertona5023572012-11-19 13:22:22 -0500678static int s5m8767_pmic_probe(struct platform_device *pdev)
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900679{
Sangbeom Kim63063bf2012-07-11 21:06:55 +0900680 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800681 struct sec_platform_data *pdata = iodev->pdata;
Mark Brownc1727082012-04-04 00:50:22 +0100682 struct regulator_config config = { };
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900683 struct regulator_dev **rdev;
684 struct s5m8767_info *s5m8767;
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900685 int i, ret, size, buck_init;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900686
Axel Line81d7bc2013-02-13 09:31:31 +0800687 if (!pdata) {
688 dev_err(pdev->dev.parent, "Platform data not supplied\n");
689 return -ENODEV;
690 }
691
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800692 if (iodev->dev->of_node) {
Axel Lincbb0ed42013-02-13 09:29:45 +0800693 ret = s5m8767_pmic_dt_parse_pdata(pdev, pdata);
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800694 if (ret)
695 return ret;
696 }
697
Axel Lin6c4efe22012-03-10 08:43:02 +0800698 if (pdata->buck2_gpiodvs) {
699 if (pdata->buck3_gpiodvs || pdata->buck4_gpiodvs) {
700 dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
701 return -EINVAL;
702 }
703 }
704
705 if (pdata->buck3_gpiodvs) {
706 if (pdata->buck2_gpiodvs || pdata->buck4_gpiodvs) {
707 dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
708 return -EINVAL;
709 }
710 }
711
712 if (pdata->buck4_gpiodvs) {
713 if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs) {
714 dev_err(&pdev->dev, "S5M8767 GPIO DVS NOT VALID\n");
715 return -EINVAL;
716 }
717 }
718
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900719 s5m8767 = devm_kzalloc(&pdev->dev, sizeof(struct s5m8767_info),
720 GFP_KERNEL);
721 if (!s5m8767)
722 return -ENOMEM;
723
724 size = sizeof(struct regulator_dev *) * (S5M8767_REG_MAX - 2);
725 s5m8767->rdev = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
726 if (!s5m8767->rdev)
727 return -ENOMEM;
728
729 rdev = s5m8767->rdev;
730 s5m8767->dev = &pdev->dev;
731 s5m8767->iodev = iodev;
Amit Daniel Kachhap9bb096f2012-12-10 18:19:39 +0530732 s5m8767->num_regulators = pdata->num_regulators;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900733 platform_set_drvdata(pdev, s5m8767);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900734
735 s5m8767->buck_gpioindex = pdata->buck_default_idx;
736 s5m8767->buck2_gpiodvs = pdata->buck2_gpiodvs;
737 s5m8767->buck3_gpiodvs = pdata->buck3_gpiodvs;
738 s5m8767->buck4_gpiodvs = pdata->buck4_gpiodvs;
739 s5m8767->buck_gpios[0] = pdata->buck_gpios[0];
740 s5m8767->buck_gpios[1] = pdata->buck_gpios[1];
741 s5m8767->buck_gpios[2] = pdata->buck_gpios[2];
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900742 s5m8767->buck_ds[0] = pdata->buck_ds[0];
743 s5m8767->buck_ds[1] = pdata->buck_ds[1];
744 s5m8767->buck_ds[2] = pdata->buck_ds[2];
745
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900746 s5m8767->ramp_delay = pdata->buck_ramp_delay;
747 s5m8767->buck2_ramp = pdata->buck2_ramp_enable;
748 s5m8767->buck3_ramp = pdata->buck3_ramp_enable;
749 s5m8767->buck4_ramp = pdata->buck4_ramp_enable;
Sangbeom Kim7e44bb82012-03-09 17:55:34 +0900750 s5m8767->opmode = pdata->opmode;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900751
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900752 buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2,
Axel Lin854f73e2012-12-29 09:38:50 +0800753 pdata->buck2_init);
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900754
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100755 regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK2DVS2,
756 buck_init);
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900757
758 buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2,
Axel Lin854f73e2012-12-29 09:38:50 +0800759 pdata->buck3_init);
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900760
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100761 regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK3DVS2,
762 buck_init);
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900763
764 buck_init = s5m8767_convert_voltage_to_sel(&buck_voltage_val2,
Axel Lin854f73e2012-12-29 09:38:50 +0800765 pdata->buck4_init);
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900766
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100767 regmap_write(s5m8767->iodev->regmap_pmic, S5M8767_REG_BUCK4DVS2,
768 buck_init);
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900769
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900770 for (i = 0; i < 8; i++) {
771 if (s5m8767->buck2_gpiodvs) {
772 s5m8767->buck2_vol[i] =
Axel Lin5b5e9772012-03-09 11:31:08 +0800773 s5m8767_convert_voltage_to_sel(
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900774 &buck_voltage_val2,
Axel Lin854f73e2012-12-29 09:38:50 +0800775 pdata->buck2_voltage[i]);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900776 }
777
778 if (s5m8767->buck3_gpiodvs) {
779 s5m8767->buck3_vol[i] =
Axel Lin5b5e9772012-03-09 11:31:08 +0800780 s5m8767_convert_voltage_to_sel(
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900781 &buck_voltage_val2,
Axel Lin854f73e2012-12-29 09:38:50 +0800782 pdata->buck3_voltage[i]);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900783 }
784
785 if (s5m8767->buck4_gpiodvs) {
786 s5m8767->buck4_vol[i] =
Axel Lin5b5e9772012-03-09 11:31:08 +0800787 s5m8767_convert_voltage_to_sel(
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900788 &buck_voltage_val2,
Axel Lin854f73e2012-12-29 09:38:50 +0800789 pdata->buck4_voltage[i]);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900790 }
791 }
792
Amit Daniel Kachhap76c854d2012-12-10 18:19:41 +0530793 if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
794 pdata->buck4_gpiodvs) {
795
796 if (!gpio_is_valid(pdata->buck_gpios[0]) ||
797 !gpio_is_valid(pdata->buck_gpios[1]) ||
798 !gpio_is_valid(pdata->buck_gpios[2])) {
799 dev_err(&pdev->dev, "GPIO NOT VALID\n");
800 return -EINVAL;
801 }
802
Axel Lin5febb3c2012-07-05 23:12:49 +0800803 ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[0],
804 "S5M8767 SET1");
805 if (ret)
806 return ret;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900807
Axel Lin5febb3c2012-07-05 23:12:49 +0800808 ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[1],
809 "S5M8767 SET2");
810 if (ret)
811 return ret;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900812
Axel Lin5febb3c2012-07-05 23:12:49 +0800813 ret = devm_gpio_request(&pdev->dev, pdata->buck_gpios[2],
814 "S5M8767 SET3");
815 if (ret)
816 return ret;
817
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900818 /* SET1 GPIO */
819 gpio_direction_output(pdata->buck_gpios[0],
820 (s5m8767->buck_gpioindex >> 2) & 0x1);
821 /* SET2 GPIO */
822 gpio_direction_output(pdata->buck_gpios[1],
823 (s5m8767->buck_gpioindex >> 1) & 0x1);
824 /* SET3 GPIO */
825 gpio_direction_output(pdata->buck_gpios[2],
826 (s5m8767->buck_gpioindex >> 0) & 0x1);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900827 }
828
Axel Lin5febb3c2012-07-05 23:12:49 +0800829 ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[0], "S5M8767 DS2");
830 if (ret)
831 return ret;
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900832
Axel Lin5febb3c2012-07-05 23:12:49 +0800833 ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[1], "S5M8767 DS3");
834 if (ret)
835 return ret;
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900836
Axel Lin5febb3c2012-07-05 23:12:49 +0800837 ret = devm_gpio_request(&pdev->dev, pdata->buck_ds[2], "S5M8767 DS4");
838 if (ret)
839 return ret;
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900840
841 /* DS2 GPIO */
842 gpio_direction_output(pdata->buck_ds[0], 0x0);
843 /* DS3 GPIO */
844 gpio_direction_output(pdata->buck_ds[1], 0x0);
845 /* DS4 GPIO */
846 gpio_direction_output(pdata->buck_ds[2], 0x0);
847
848 if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
849 pdata->buck4_gpiodvs) {
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100850 regmap_update_bits(s5m8767->iodev->regmap_pmic,
851 S5M8767_REG_BUCK2CTRL, 1 << 1,
852 (pdata->buck2_gpiodvs) ? (1 << 1) : (0 << 1));
853 regmap_update_bits(s5m8767->iodev->regmap_pmic,
854 S5M8767_REG_BUCK3CTRL, 1 << 1,
855 (pdata->buck3_gpiodvs) ? (1 << 1) : (0 << 1));
856 regmap_update_bits(s5m8767->iodev->regmap_pmic,
857 S5M8767_REG_BUCK4CTRL, 1 << 1,
858 (pdata->buck4_gpiodvs) ? (1 << 1) : (0 << 1));
Sangbeom Kimc848bc82012-06-18 09:49:20 +0900859 }
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900860
861 /* Initialize GPIO DVS registers */
862 for (i = 0; i < 8; i++) {
863 if (s5m8767->buck2_gpiodvs) {
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100864 regmap_write(s5m8767->iodev->regmap_pmic,
865 S5M8767_REG_BUCK2DVS1 + i,
866 s5m8767->buck2_vol[i]);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900867 }
868
869 if (s5m8767->buck3_gpiodvs) {
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100870 regmap_write(s5m8767->iodev->regmap_pmic,
871 S5M8767_REG_BUCK3DVS1 + i,
872 s5m8767->buck3_vol[i]);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900873 }
874
875 if (s5m8767->buck4_gpiodvs) {
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100876 regmap_write(s5m8767->iodev->regmap_pmic,
877 S5M8767_REG_BUCK4DVS1 + i,
878 s5m8767->buck4_vol[i]);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900879 }
880 }
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900881
882 if (s5m8767->buck2_ramp)
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100883 regmap_update_bits(s5m8767->iodev->regmap_pmic,
884 S5M8767_REG_DVSRAMP, 0x08, 0x08);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900885
886 if (s5m8767->buck3_ramp)
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100887 regmap_update_bits(s5m8767->iodev->regmap_pmic,
888 S5M8767_REG_DVSRAMP, 0x04, 0x04);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900889
890 if (s5m8767->buck4_ramp)
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100891 regmap_update_bits(s5m8767->iodev->regmap_pmic,
892 S5M8767_REG_DVSRAMP, 0x02, 0x02);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900893
894 if (s5m8767->buck2_ramp || s5m8767->buck3_ramp
895 || s5m8767->buck4_ramp) {
Krzysztof Kozlowskif37ff6b2013-12-17 14:23:17 +0100896 unsigned int val;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900897 switch (s5m8767->ramp_delay) {
Sangbeom Kim1af142c2012-06-13 17:27:54 +0900898 case 5:
Krzysztof Kozlowskif37ff6b2013-12-17 14:23:17 +0100899 val = S5M8767_DVS_BUCK_RAMP_5;
Sangbeom Kim1af142c2012-06-13 17:27:54 +0900900 break;
901 case 10:
Krzysztof Kozlowskif37ff6b2013-12-17 14:23:17 +0100902 val = S5M8767_DVS_BUCK_RAMP_10;
Axel Lin047ec222012-01-12 14:57:09 +0800903 break;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900904 case 25:
Krzysztof Kozlowskif37ff6b2013-12-17 14:23:17 +0100905 val = S5M8767_DVS_BUCK_RAMP_25;
Axel Lin047ec222012-01-12 14:57:09 +0800906 break;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900907 case 50:
Krzysztof Kozlowskif37ff6b2013-12-17 14:23:17 +0100908 val = S5M8767_DVS_BUCK_RAMP_50;
Axel Lin047ec222012-01-12 14:57:09 +0800909 break;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900910 case 100:
Krzysztof Kozlowskif37ff6b2013-12-17 14:23:17 +0100911 val = S5M8767_DVS_BUCK_RAMP_100;
Axel Lin047ec222012-01-12 14:57:09 +0800912 break;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900913 default:
Krzysztof Kozlowskif37ff6b2013-12-17 14:23:17 +0100914 val = S5M8767_DVS_BUCK_RAMP_10;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900915 }
Krzysztof Kozlowskid13733f2013-12-17 14:23:18 +0100916 regmap_update_bits(s5m8767->iodev->regmap_pmic,
917 S5M8767_REG_DVSRAMP,
918 S5M8767_DVS_BUCK_RAMP_MASK,
919 val << S5M8767_DVS_BUCK_RAMP_SHIFT);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900920 }
921
922 for (i = 0; i < pdata->num_regulators; i++) {
Sangbeom Kim63063bf2012-07-11 21:06:55 +0900923 const struct sec_voltage_desc *desc;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900924 int id = pdata->regulators[i].id;
925
926 desc = reg_voltage_map[id];
Axel Line2eb1692012-06-18 14:25:27 +0800927 if (desc) {
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900928 regulators[id].n_voltages =
929 (desc->max - desc->min) / desc->step + 1;
Axel Line2eb1692012-06-18 14:25:27 +0800930 regulators[id].min_uV = desc->min;
931 regulators[id].uV_step = desc->step;
Axel Lin31a932e2013-01-18 09:55:06 +0800932 regulators[id].vsel_reg =
933 s5m8767_get_vsel_reg(id, s5m8767);
934 if (id < S5M8767_BUCK1)
935 regulators[id].vsel_mask = 0x3f;
936 else
937 regulators[id].vsel_mask = 0xff;
Axel Line2eb1692012-06-18 14:25:27 +0800938 }
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900939
Mark Brownc1727082012-04-04 00:50:22 +0100940 config.dev = s5m8767->dev;
941 config.init_data = pdata->regulators[i].initdata;
942 config.driver_data = s5m8767;
Krzysztof Kozlowski3e1e4a52013-12-12 17:12:31 -0800943 config.regmap = iodev->regmap_pmic;
Amit Daniel Kachhap26aec0092013-02-03 15:49:47 -0800944 config.of_node = pdata->regulators[i].reg_node;
Mark Brownc1727082012-04-04 00:50:22 +0100945
Mark Brownf0db4752013-08-31 11:57:34 +0100946 rdev[i] = devm_regulator_register(&pdev->dev, &regulators[id],
947 &config);
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900948 if (IS_ERR(rdev[i])) {
949 ret = PTR_ERR(rdev[i]);
950 dev_err(s5m8767->dev, "regulator init failed for %d\n",
951 id);
Mark Brownf0db4752013-08-31 11:57:34 +0100952 return ret;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900953 }
954 }
955
956 return 0;
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900957}
958
959static const struct platform_device_id s5m8767_pmic_id[] = {
960 { "s5m8767-pmic", 0},
961 { },
962};
963MODULE_DEVICE_TABLE(platform, s5m8767_pmic_id);
964
965static struct platform_driver s5m8767_pmic_driver = {
966 .driver = {
967 .name = "s5m8767-pmic",
968 .owner = THIS_MODULE,
969 },
970 .probe = s5m8767_pmic_probe,
Sangbeom Kim9767ec72012-01-09 19:10:25 +0900971 .id_table = s5m8767_pmic_id,
972};
973
974static int __init s5m8767_pmic_init(void)
975{
976 return platform_driver_register(&s5m8767_pmic_driver);
977}
978subsys_initcall(s5m8767_pmic_init);
979
980static void __exit s5m8767_pmic_exit(void)
981{
982 platform_driver_unregister(&s5m8767_pmic_driver);
983}
984module_exit(s5m8767_pmic_exit);
985
986/* Module information */
987MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
988MODULE_DESCRIPTION("SAMSUNG S5M8767 Regulator Driver");
989MODULE_LICENSE("GPL");