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rt2800: initialize BBP_R104 on proper subroutines
[linux/fpc-iii.git] / drivers / regulator / s2mps11.c
blobcd9ea2ea1826bc5e6b40de856b4884637eae3103
1 /*
2 * s2mps11.c
3 *
4 * Copyright (c) 2012 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>
15 #include <linux/delay.h>
16 #include <linux/err.h>
17 #include <linux/gpio.h>
18 #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>
23 #include <linux/mfd/samsung/core.h>
24 #include <linux/mfd/samsung/s2mps11.h>
25
26 struct s2mps11_info {
27 struct regulator_dev *rdev[S2MPS11_REGULATOR_MAX];
28
29 int ramp_delay2;
30 int ramp_delay34;
31 int ramp_delay5;
32 int ramp_delay16;
33 int ramp_delay7810;
34 int ramp_delay9;
35
36 bool buck6_ramp;
37 bool buck2_ramp;
38 bool buck3_ramp;
39 bool buck4_ramp;
40 };
41
42 static int get_ramp_delay(int ramp_delay)
43 {
44 unsigned char cnt = 0;
45
46 ramp_delay /= 6;
47
48 while (true) {
49 ramp_delay = ramp_delay >> 1;
50 if (ramp_delay == 0)
51 break;
52 cnt++;
53 }
54 return cnt;
55 }
56
57 static struct regulator_ops s2mps11_ldo_ops = {
58 .list_voltage = regulator_list_voltage_linear,
59 .map_voltage = regulator_map_voltage_linear,
60 .is_enabled = regulator_is_enabled_regmap,
61 .enable = regulator_enable_regmap,
62 .disable = regulator_disable_regmap,
63 .get_voltage_sel = regulator_get_voltage_sel_regmap,
64 .set_voltage_sel = regulator_set_voltage_sel_regmap,
65 .set_voltage_time_sel = regulator_set_voltage_time_sel,
66 };
67
68 static struct regulator_ops s2mps11_buck_ops = {
69 .list_voltage = regulator_list_voltage_linear,
70 .map_voltage = regulator_map_voltage_linear,
71 .is_enabled = regulator_is_enabled_regmap,
72 .enable = regulator_enable_regmap,
73 .disable = regulator_disable_regmap,
74 .get_voltage_sel = regulator_get_voltage_sel_regmap,
75 .set_voltage_sel = regulator_set_voltage_sel_regmap,
76 .set_voltage_time_sel = regulator_set_voltage_time_sel,
77 };
78
79 #define regulator_desc_ldo1(num) { \
80 .name = "LDO"#num, \
81 .id = S2MPS11_LDO##num, \
82 .ops = &s2mps11_ldo_ops, \
83 .type = REGULATOR_VOLTAGE, \
84 .owner = THIS_MODULE, \
85 .min_uV = S2MPS11_LDO_MIN, \
86 .uV_step = S2MPS11_LDO_STEP1, \
87 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
88 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
89 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
90 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
91 .enable_mask = S2MPS11_ENABLE_MASK \
92 }
93 #define regulator_desc_ldo2(num) { \
94 .name = "LDO"#num, \
95 .id = S2MPS11_LDO##num, \
96 .ops = &s2mps11_ldo_ops, \
97 .type = REGULATOR_VOLTAGE, \
98 .owner = THIS_MODULE, \
99 .min_uV = S2MPS11_LDO_MIN, \
100 .uV_step = S2MPS11_LDO_STEP2, \
101 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
102 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
103 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
104 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
105 .enable_mask = S2MPS11_ENABLE_MASK \
106 }
107
108 #define regulator_desc_buck1_4(num) { \
109 .name = "BUCK"#num, \
110 .id = S2MPS11_BUCK##num, \
111 .ops = &s2mps11_buck_ops, \
112 .type = REGULATOR_VOLTAGE, \
113 .owner = THIS_MODULE, \
114 .min_uV = S2MPS11_BUCK_MIN1, \
115 .uV_step = S2MPS11_BUCK_STEP1, \
116 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
117 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
118 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
119 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
120 .enable_mask = S2MPS11_ENABLE_MASK \
121 }
122
123 #define regulator_desc_buck5 { \
124 .name = "BUCK5", \
125 .id = S2MPS11_BUCK5, \
126 .ops = &s2mps11_buck_ops, \
127 .type = REGULATOR_VOLTAGE, \
128 .owner = THIS_MODULE, \
129 .min_uV = S2MPS11_BUCK_MIN1, \
130 .uV_step = S2MPS11_BUCK_STEP1, \
131 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
132 .vsel_reg = S2MPS11_REG_B5CTRL2, \
133 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
134 .enable_reg = S2MPS11_REG_B5CTRL1, \
135 .enable_mask = S2MPS11_ENABLE_MASK \
136 }
137
138 #define regulator_desc_buck6_8(num) { \
139 .name = "BUCK"#num, \
140 .id = S2MPS11_BUCK##num, \
141 .ops = &s2mps11_buck_ops, \
142 .type = REGULATOR_VOLTAGE, \
143 .owner = THIS_MODULE, \
144 .min_uV = S2MPS11_BUCK_MIN1, \
145 .uV_step = S2MPS11_BUCK_STEP1, \
146 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
147 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
148 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
149 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
150 .enable_mask = S2MPS11_ENABLE_MASK \
151 }
152
153 #define regulator_desc_buck9 { \
154 .name = "BUCK9", \
155 .id = S2MPS11_BUCK9, \
156 .ops = &s2mps11_buck_ops, \
157 .type = REGULATOR_VOLTAGE, \
158 .owner = THIS_MODULE, \
159 .min_uV = S2MPS11_BUCK_MIN3, \
160 .uV_step = S2MPS11_BUCK_STEP3, \
161 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
162 .vsel_reg = S2MPS11_REG_B9CTRL2, \
163 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
164 .enable_reg = S2MPS11_REG_B9CTRL1, \
165 .enable_mask = S2MPS11_ENABLE_MASK \
166 }
167
168 #define regulator_desc_buck10 { \
169 .name = "BUCK10", \
170 .id = S2MPS11_BUCK10, \
171 .ops = &s2mps11_buck_ops, \
172 .type = REGULATOR_VOLTAGE, \
173 .owner = THIS_MODULE, \
174 .min_uV = S2MPS11_BUCK_MIN2, \
175 .uV_step = S2MPS11_BUCK_STEP2, \
176 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
177 .vsel_reg = S2MPS11_REG_B10CTRL2, \
178 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
179 .enable_reg = S2MPS11_REG_B10CTRL1, \
180 .enable_mask = S2MPS11_ENABLE_MASK \
181 }
182
183 static struct regulator_desc regulators[] = {
184 regulator_desc_ldo2(1),
185 regulator_desc_ldo1(2),
186 regulator_desc_ldo1(3),
187 regulator_desc_ldo1(4),
188 regulator_desc_ldo1(5),
189 regulator_desc_ldo2(6),
190 regulator_desc_ldo1(7),
191 regulator_desc_ldo1(8),
192 regulator_desc_ldo1(9),
193 regulator_desc_ldo1(10),
194 regulator_desc_ldo2(11),
195 regulator_desc_ldo1(12),
196 regulator_desc_ldo1(13),
197 regulator_desc_ldo1(14),
198 regulator_desc_ldo1(15),
199 regulator_desc_ldo1(16),
200 regulator_desc_ldo1(17),
201 regulator_desc_ldo1(18),
202 regulator_desc_ldo1(19),
203 regulator_desc_ldo1(20),
204 regulator_desc_ldo1(21),
205 regulator_desc_ldo2(22),
206 regulator_desc_ldo2(23),
207 regulator_desc_ldo1(24),
208 regulator_desc_ldo1(25),
209 regulator_desc_ldo1(26),
210 regulator_desc_ldo2(27),
211 regulator_desc_ldo1(28),
212 regulator_desc_ldo1(29),
213 regulator_desc_ldo1(30),
214 regulator_desc_ldo1(31),
215 regulator_desc_ldo1(32),
216 regulator_desc_ldo1(33),
217 regulator_desc_ldo1(34),
218 regulator_desc_ldo1(35),
219 regulator_desc_ldo1(36),
220 regulator_desc_ldo1(37),
221 regulator_desc_ldo1(38),
222 regulator_desc_buck1_4(1),
223 regulator_desc_buck1_4(2),
224 regulator_desc_buck1_4(3),
225 regulator_desc_buck1_4(4),
226 regulator_desc_buck5,
227 regulator_desc_buck6_8(6),
228 regulator_desc_buck6_8(7),
229 regulator_desc_buck6_8(8),
230 regulator_desc_buck9,
231 regulator_desc_buck10,
232 };
233
234 static int s2mps11_pmic_probe(struct platform_device *pdev)
235 {
236 struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
237 struct sec_platform_data *pdata = dev_get_platdata(iodev->dev);
238 struct regulator_config config = { };
239 struct s2mps11_info *s2mps11;
240 int i, ret;
241 unsigned char ramp_enable, ramp_reg = 0;
242
243 if (!pdata) {
244 dev_err(pdev->dev.parent, "Platform data not supplied\n");
245 return -ENODEV;
246 }
247
248 s2mps11 = devm_kzalloc(&pdev->dev, sizeof(struct s2mps11_info),
249 GFP_KERNEL);
250 if (!s2mps11)
251 return -ENOMEM;
252
253 platform_set_drvdata(pdev, s2mps11);
254
255 s2mps11->ramp_delay2 = pdata->buck2_ramp_delay;
256 s2mps11->ramp_delay34 = pdata->buck34_ramp_delay;
257 s2mps11->ramp_delay5 = pdata->buck5_ramp_delay;
258 s2mps11->ramp_delay16 = pdata->buck16_ramp_delay;
259 s2mps11->ramp_delay7810 = pdata->buck7810_ramp_delay;
260 s2mps11->ramp_delay9 = pdata->buck9_ramp_delay;
261
262 s2mps11->buck6_ramp = pdata->buck6_ramp_enable;
263 s2mps11->buck2_ramp = pdata->buck2_ramp_enable;
264 s2mps11->buck3_ramp = pdata->buck3_ramp_enable;
265 s2mps11->buck4_ramp = pdata->buck4_ramp_enable;
266
267 ramp_enable = (s2mps11->buck2_ramp << 3) | (s2mps11->buck3_ramp << 2) |
268 (s2mps11->buck4_ramp << 1) | s2mps11->buck6_ramp ;
269
270 if (ramp_enable) {
271 if (s2mps11->buck2_ramp)
272 ramp_reg |= get_ramp_delay(s2mps11->ramp_delay2) << 6;
273 if (s2mps11->buck3_ramp || s2mps11->buck4_ramp)
274 ramp_reg |= get_ramp_delay(s2mps11->ramp_delay34) << 4;
275 sec_reg_write(iodev, S2MPS11_REG_RAMP, ramp_reg | ramp_enable);
276 }
277
278 ramp_reg &= 0x00;
279 ramp_reg |= get_ramp_delay(s2mps11->ramp_delay5) << 6;
280 ramp_reg |= get_ramp_delay(s2mps11->ramp_delay16) << 4;
281 ramp_reg |= get_ramp_delay(s2mps11->ramp_delay7810) << 2;
282 ramp_reg |= get_ramp_delay(s2mps11->ramp_delay9);
283 sec_reg_write(iodev, S2MPS11_REG_RAMP_BUCK, ramp_reg);
284
285 for (i = 0; i < S2MPS11_REGULATOR_MAX; i++) {
286
287 config.dev = &pdev->dev;
288 config.regmap = iodev->regmap;
289 config.init_data = pdata->regulators[i].initdata;
290 config.driver_data = s2mps11;
291
292 s2mps11->rdev[i] = regulator_register(&regulators[i], &config);
293 if (IS_ERR(s2mps11->rdev[i])) {
294 ret = PTR_ERR(s2mps11->rdev[i]);
295 dev_err(&pdev->dev, "regulator init failed for %d\n",
296 i);
297 s2mps11->rdev[i] = NULL;
298 goto err;
299 }
300 }
301
302 return 0;
303 err:
304 for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
305 regulator_unregister(s2mps11->rdev[i]);
306
307 return ret;
308 }
309
310 static int s2mps11_pmic_remove(struct platform_device *pdev)
311 {
312 struct s2mps11_info *s2mps11 = platform_get_drvdata(pdev);
313 int i;
314
315 for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
316 regulator_unregister(s2mps11->rdev[i]);
317
318 return 0;
319 }
320
321 static const struct platform_device_id s2mps11_pmic_id[] = {
322 { "s2mps11-pmic", 0},
323 { },
324 };
325 MODULE_DEVICE_TABLE(platform, s2mps11_pmic_id);
326
327 static struct platform_driver s2mps11_pmic_driver = {
328 .driver = {
329 .name = "s2mps11-pmic",
330 .owner = THIS_MODULE,
331 },
332 .probe = s2mps11_pmic_probe,
333 .remove = s2mps11_pmic_remove,
334 .id_table = s2mps11_pmic_id,
335 };
336
337 static int __init s2mps11_pmic_init(void)
338 {
339 return platform_driver_register(&s2mps11_pmic_driver);
340 }
341 subsys_initcall(s2mps11_pmic_init);
342
343 static void __exit s2mps11_pmic_exit(void)
344 {
345 platform_driver_unregister(&s2mps11_pmic_driver);
346 }
347 module_exit(s2mps11_pmic_exit);
348
349 /* Module information */
350 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
351 MODULE_DESCRIPTION("SAMSUNG S2MPS11 Regulator Driver");
352 MODULE_LICENSE("GPL");
Linux with added FPC-III support