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1/*
2 * tps65023-regulator.c
3 *
4 * Supports TPS65023 Regulator
5 *
6 * Copyright (C) 2009 Texas Instrument Incorporated - https://www.ti.com/
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation version 2.
11 *
12 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
13 * whether express or implied; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 */
17
18#include <linux/kernel.h>
19#include <linux/module.h>
20#include <linux/init.h>
21#include <linux/err.h>
22#include <linux/platform_device.h>
23#include <linux/regulator/driver.h>
24#include <linux/regulator/machine.h>
25#include <linux/i2c.h>
26#include <linux/slab.h>
27#include <linux/regmap.h>
28
29/* Register definitions */
30#define TPS65023_REG_VERSION 0
31#define TPS65023_REG_PGOODZ 1
32#define TPS65023_REG_MASK 2
33#define TPS65023_REG_REG_CTRL 3
34#define TPS65023_REG_CON_CTRL 4
35#define TPS65023_REG_CON_CTRL2 5
36#define TPS65023_REG_DEF_CORE 6
37#define TPS65023_REG_DEFSLEW 7
38#define TPS65023_REG_LDO_CTRL 8
39
40/* PGOODZ bitfields */
41#define TPS65023_PGOODZ_PWRFAILZ BIT(7)
42#define TPS65023_PGOODZ_LOWBATTZ BIT(6)
43#define TPS65023_PGOODZ_VDCDC1 BIT(5)
44#define TPS65023_PGOODZ_VDCDC2 BIT(4)
45#define TPS65023_PGOODZ_VDCDC3 BIT(3)
46#define TPS65023_PGOODZ_LDO2 BIT(2)
47#define TPS65023_PGOODZ_LDO1 BIT(1)
48
49/* MASK bitfields */
50#define TPS65023_MASK_PWRFAILZ BIT(7)
51#define TPS65023_MASK_LOWBATTZ BIT(6)
52#define TPS65023_MASK_VDCDC1 BIT(5)
53#define TPS65023_MASK_VDCDC2 BIT(4)
54#define TPS65023_MASK_VDCDC3 BIT(3)
55#define TPS65023_MASK_LDO2 BIT(2)
56#define TPS65023_MASK_LDO1 BIT(1)
57
58/* REG_CTRL bitfields */
59#define TPS65023_REG_CTRL_VDCDC1_EN BIT(5)
60#define TPS65023_REG_CTRL_VDCDC2_EN BIT(4)
61#define TPS65023_REG_CTRL_VDCDC3_EN BIT(3)
62#define TPS65023_REG_CTRL_LDO2_EN BIT(2)
63#define TPS65023_REG_CTRL_LDO1_EN BIT(1)
64
65/* REG_CTRL2 bitfields */
66#define TPS65023_REG_CTRL2_GO BIT(7)
67#define TPS65023_REG_CTRL2_CORE_ADJ BIT(6)
68#define TPS65023_REG_CTRL2_DCDC2 BIT(2)
69#define TPS65023_REG_CTRL2_DCDC1 BIT(1)
70#define TPS65023_REG_CTRL2_DCDC3 BIT(0)
71
72/* Number of step-down converters available */
73#define TPS65023_NUM_DCDC 3
74/* Number of LDO voltage regulators available */
75#define TPS65023_NUM_LDO 2
76/* Number of total regulators available */
77#define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO)
78
79/* DCDCs */
80#define TPS65023_DCDC_1 0
81#define TPS65023_DCDC_2 1
82#define TPS65023_DCDC_3 2
83/* LDOs */
84#define TPS65023_LDO_1 3
85#define TPS65023_LDO_2 4
86
87#define TPS65023_MAX_REG_ID TPS65023_LDO_2
88
89#define TPS65023_REGULATOR_DCDC(_num, _t, _em) \
90 { \
91 .name = "VDCDC"#_num, \
92 .of_match = of_match_ptr("VDCDC"#_num), \
93 .regulators_node = of_match_ptr("regulators"), \
94 .id = TPS65023_DCDC_##_num, \
95 .n_voltages = ARRAY_SIZE(_t), \
96 .ops = &tps65023_dcdc_ops, \
97 .type = REGULATOR_VOLTAGE, \
98 .owner = THIS_MODULE, \
99 .volt_table = _t, \
100 .vsel_reg = TPS65023_REG_DEF_CORE, \
101 .vsel_mask = ARRAY_SIZE(_t) - 1, \
102 .enable_mask = _em, \
103 .enable_reg = TPS65023_REG_REG_CTRL, \
104 .apply_reg = TPS65023_REG_CON_CTRL2, \
105 .apply_bit = TPS65023_REG_CTRL2_GO, \
106 } \
107
108#define TPS65023_REGULATOR_LDO(_num, _t, _vm) \
109 { \
110 .name = "LDO"#_num, \
111 .of_match = of_match_ptr("LDO"#_num), \
112 .regulators_node = of_match_ptr("regulators"), \
113 .id = TPS65023_LDO_##_num, \
114 .n_voltages = ARRAY_SIZE(_t), \
115 .ops = &tps65023_ldo_ops, \
116 .type = REGULATOR_VOLTAGE, \
117 .owner = THIS_MODULE, \
118 .volt_table = _t, \
119 .vsel_reg = TPS65023_REG_LDO_CTRL, \
120 .vsel_mask = _vm, \
121 .enable_mask = 1 << (_num), \
122 .enable_reg = TPS65023_REG_REG_CTRL, \
123 } \
124
125/* Supported voltage values for regulators */
126static const unsigned int VCORE_VSEL_table[] = {
127 800000, 825000, 850000, 875000,
128 900000, 925000, 950000, 975000,
129 1000000, 1025000, 1050000, 1075000,
130 1100000, 1125000, 1150000, 1175000,
131 1200000, 1225000, 1250000, 1275000,
132 1300000, 1325000, 1350000, 1375000,
133 1400000, 1425000, 1450000, 1475000,
134 1500000, 1525000, 1550000, 1600000,
135};
136
137static const unsigned int DCDC_FIXED_3300000_VSEL_table[] = {
138 3300000,
139};
140
141static const unsigned int DCDC_FIXED_1800000_VSEL_table[] = {
142 1800000,
143};
144
145/* Supported voltage values for LDO regulators for tps65020 */
146static const unsigned int TPS65020_LDO_VSEL_table[] = {
147 1000000, 1050000, 1100000, 1300000,
148 1800000, 2500000, 3000000, 3300000,
149};
150
151/* Supported voltage values for LDO regulators
152 * for tps65021 and tps65023 */
153static const unsigned int TPS65023_LDO1_VSEL_table[] = {
154 1000000, 1100000, 1300000, 1800000,
155 2200000, 2600000, 2800000, 3150000,
156};
157
158static const unsigned int TPS65023_LDO2_VSEL_table[] = {
159 1050000, 1200000, 1300000, 1800000,
160 2500000, 2800000, 3000000, 3300000,
161};
162
163/* PMIC details */
164struct tps_pmic {
165 struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
166 const struct tps_driver_data *driver_data;
167 struct regmap *regmap;
168};
169
170/* Struct passed as driver data */
171struct tps_driver_data {
172 const struct regulator_desc *desc;
173 u8 core_regulator;
174};
175
176static int tps65023_dcdc_get_voltage_sel(struct regulator_dev *dev)
177{
178 struct tps_pmic *tps = rdev_get_drvdata(dev);
179 int dcdc = rdev_get_id(dev);
180
181 if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
182 return -EINVAL;
183
184 if (dcdc != tps->driver_data->core_regulator)
185 return 0;
186
187 return regulator_get_voltage_sel_regmap(dev);
188}
189
190static int tps65023_dcdc_set_voltage_sel(struct regulator_dev *dev,
191 unsigned selector)
192{
193 struct tps_pmic *tps = rdev_get_drvdata(dev);
194 int dcdc = rdev_get_id(dev);
195
196 if (dcdc != tps->driver_data->core_regulator)
197 return -EINVAL;
198
199 return regulator_set_voltage_sel_regmap(dev, selector);
200}
201
202/* Operations permitted on VDCDCx */
203static const struct regulator_ops tps65023_dcdc_ops = {
204 .is_enabled = regulator_is_enabled_regmap,
205 .enable = regulator_enable_regmap,
206 .disable = regulator_disable_regmap,
207 .get_voltage_sel = tps65023_dcdc_get_voltage_sel,
208 .set_voltage_sel = tps65023_dcdc_set_voltage_sel,
209 .list_voltage = regulator_list_voltage_table,
210 .map_voltage = regulator_map_voltage_ascend,
211};
212
213/* Operations permitted on LDOx */
214static const struct regulator_ops tps65023_ldo_ops = {
215 .is_enabled = regulator_is_enabled_regmap,
216 .enable = regulator_enable_regmap,
217 .disable = regulator_disable_regmap,
218 .get_voltage_sel = regulator_get_voltage_sel_regmap,
219 .set_voltage_sel = regulator_set_voltage_sel_regmap,
220 .list_voltage = regulator_list_voltage_table,
221 .map_voltage = regulator_map_voltage_ascend,
222};
223
224static const struct regmap_config tps65023_regmap_config = {
225 .reg_bits = 8,
226 .val_bits = 8,
227};
228
229static const struct regulator_desc tps65020_regulators[] = {
230 TPS65023_REGULATOR_DCDC(1, DCDC_FIXED_3300000_VSEL_table, 0x20),
231 TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_1800000_VSEL_table, 0x10),
232 TPS65023_REGULATOR_DCDC(3, VCORE_VSEL_table, 0x08),
233 TPS65023_REGULATOR_LDO(1, TPS65020_LDO_VSEL_table, 0x07),
234 TPS65023_REGULATOR_LDO(2, TPS65020_LDO_VSEL_table, 0x70),
235};
236
237static const struct regulator_desc tps65021_regulators[] = {
238 TPS65023_REGULATOR_DCDC(1, DCDC_FIXED_3300000_VSEL_table, 0x20),
239 TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_1800000_VSEL_table, 0x10),
240 TPS65023_REGULATOR_DCDC(3, VCORE_VSEL_table, 0x08),
241 TPS65023_REGULATOR_LDO(1, TPS65023_LDO1_VSEL_table, 0x07),
242 TPS65023_REGULATOR_LDO(2, TPS65023_LDO2_VSEL_table, 0x70),
243};
244
245static const struct regulator_desc tps65023_regulators[] = {
246 TPS65023_REGULATOR_DCDC(1, VCORE_VSEL_table, 0x20),
247 TPS65023_REGULATOR_DCDC(2, DCDC_FIXED_3300000_VSEL_table, 0x10),
248 TPS65023_REGULATOR_DCDC(3, DCDC_FIXED_1800000_VSEL_table, 0x08),
249 TPS65023_REGULATOR_LDO(1, TPS65023_LDO1_VSEL_table, 0x07),
250 TPS65023_REGULATOR_LDO(2, TPS65023_LDO2_VSEL_table, 0x70),
251};
252
253static struct tps_driver_data tps65020_drv_data = {
254 .desc = tps65020_regulators,
255 .core_regulator = TPS65023_DCDC_3,
256};
257
258static struct tps_driver_data tps65021_drv_data = {
259 .desc = tps65021_regulators,
260 .core_regulator = TPS65023_DCDC_3,
261};
262
263static struct tps_driver_data tps65023_drv_data = {
264 .desc = tps65023_regulators,
265 .core_regulator = TPS65023_DCDC_1,
266};
267
268static int tps_65023_probe(struct i2c_client *client,
269 const struct i2c_device_id *id)
270{
271 struct regulator_init_data *init_data = dev_get_platdata(&client->dev);
272 struct regulator_config config = { };
273 struct tps_pmic *tps;
274 int i;
275 int error;
276
277 tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
278 if (!tps)
279 return -ENOMEM;
280
281 tps->driver_data = (struct tps_driver_data *)id->driver_data;
282
283 tps->regmap = devm_regmap_init_i2c(client, &tps65023_regmap_config);
284 if (IS_ERR(tps->regmap)) {
285 error = PTR_ERR(tps->regmap);
286 dev_err(&client->dev, "Failed to allocate register map: %d\n",
287 error);
288 return error;
289 }
290
291 /* common for all regulators */
292 config.dev = &client->dev;
293 config.driver_data = tps;
294 config.regmap = tps->regmap;
295
296 for (i = 0; i < TPS65023_NUM_REGULATOR; i++) {
297 if (init_data)
298 config.init_data = &init_data[i];
299
300 /* Register the regulators */
301 tps->rdev[i] = devm_regulator_register(&client->dev,
302 &tps->driver_data->desc[i], &config);
303 if (IS_ERR(tps->rdev[i])) {
304 dev_err(&client->dev, "failed to register %s\n",
305 id->name);
306 return PTR_ERR(tps->rdev[i]);
307 }
308 }
309
310 i2c_set_clientdata(client, tps);
311
312 /* Enable setting output voltage by I2C */
313 regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
314 TPS65023_REG_CTRL2_CORE_ADJ, 0);
315
316 return 0;
317}
318
319static const struct of_device_id tps65023_of_match[] = {
320 { .compatible = "ti,tps65020", .data = &tps65020_drv_data},
321 { .compatible = "ti,tps65021", .data = &tps65021_drv_data},
322 { .compatible = "ti,tps65023", .data = &tps65023_drv_data},
323 {},
324};
325MODULE_DEVICE_TABLE(of, tps65023_of_match);
326
327static const struct i2c_device_id tps_65023_id[] = {
328 {
329 .name = "tps65023",
330 .driver_data = (kernel_ulong_t)&tps65023_drv_data
331 }, {
332 .name = "tps65021",
333 .driver_data = (kernel_ulong_t)&tps65021_drv_data
334 }, {
335 .name = "tps65020",
336 .driver_data = (kernel_ulong_t)&tps65020_drv_data
337 },
338 { },
339};
340MODULE_DEVICE_TABLE(i2c, tps_65023_id);
341
342static struct i2c_driver tps_65023_i2c_driver = {
343 .driver = {
344 .name = "tps65023",
345 .of_match_table = of_match_ptr(tps65023_of_match),
346 },
347 .probe = tps_65023_probe,
348 .id_table = tps_65023_id,
349};
350
351static int __init tps_65023_init(void)
352{
353 return i2c_add_driver(&tps_65023_i2c_driver);
354}
355subsys_initcall(tps_65023_init);
356
357static void __exit tps_65023_cleanup(void)
358{
359 i2c_del_driver(&tps_65023_i2c_driver);
360}
361module_exit(tps_65023_cleanup);
362
363MODULE_AUTHOR("Texas Instruments");
364MODULE_DESCRIPTION("TPS65023 voltage regulator driver");
365MODULE_LICENSE("GPL v2");
1/*
2 * tps65023-regulator.c
3 *
4 * Supports TPS65023 Regulator
5 *
6 * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation version 2.
11 *
12 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
13 * whether express or implied; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 */
17
18#include <linux/kernel.h>
19#include <linux/module.h>
20#include <linux/init.h>
21#include <linux/err.h>
22#include <linux/platform_device.h>
23#include <linux/regulator/driver.h>
24#include <linux/regulator/machine.h>
25#include <linux/i2c.h>
26#include <linux/slab.h>
27#include <linux/regmap.h>
28
29/* Register definitions */
30#define TPS65023_REG_VERSION 0
31#define TPS65023_REG_PGOODZ 1
32#define TPS65023_REG_MASK 2
33#define TPS65023_REG_REG_CTRL 3
34#define TPS65023_REG_CON_CTRL 4
35#define TPS65023_REG_CON_CTRL2 5
36#define TPS65023_REG_DEF_CORE 6
37#define TPS65023_REG_DEFSLEW 7
38#define TPS65023_REG_LDO_CTRL 8
39
40/* PGOODZ bitfields */
41#define TPS65023_PGOODZ_PWRFAILZ BIT(7)
42#define TPS65023_PGOODZ_LOWBATTZ BIT(6)
43#define TPS65023_PGOODZ_VDCDC1 BIT(5)
44#define TPS65023_PGOODZ_VDCDC2 BIT(4)
45#define TPS65023_PGOODZ_VDCDC3 BIT(3)
46#define TPS65023_PGOODZ_LDO2 BIT(2)
47#define TPS65023_PGOODZ_LDO1 BIT(1)
48
49/* MASK bitfields */
50#define TPS65023_MASK_PWRFAILZ BIT(7)
51#define TPS65023_MASK_LOWBATTZ BIT(6)
52#define TPS65023_MASK_VDCDC1 BIT(5)
53#define TPS65023_MASK_VDCDC2 BIT(4)
54#define TPS65023_MASK_VDCDC3 BIT(3)
55#define TPS65023_MASK_LDO2 BIT(2)
56#define TPS65023_MASK_LDO1 BIT(1)
57
58/* REG_CTRL bitfields */
59#define TPS65023_REG_CTRL_VDCDC1_EN BIT(5)
60#define TPS65023_REG_CTRL_VDCDC2_EN BIT(4)
61#define TPS65023_REG_CTRL_VDCDC3_EN BIT(3)
62#define TPS65023_REG_CTRL_LDO2_EN BIT(2)
63#define TPS65023_REG_CTRL_LDO1_EN BIT(1)
64
65/* REG_CTRL2 bitfields */
66#define TPS65023_REG_CTRL2_GO BIT(7)
67#define TPS65023_REG_CTRL2_CORE_ADJ BIT(6)
68#define TPS65023_REG_CTRL2_DCDC2 BIT(2)
69#define TPS65023_REG_CTRL2_DCDC1 BIT(1)
70#define TPS65023_REG_CTRL2_DCDC3 BIT(0)
71
72/* Number of step-down converters available */
73#define TPS65023_NUM_DCDC 3
74/* Number of LDO voltage regulators available */
75#define TPS65023_NUM_LDO 2
76/* Number of total regulators available */
77#define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO)
78
79/* DCDCs */
80#define TPS65023_DCDC_1 0
81#define TPS65023_DCDC_2 1
82#define TPS65023_DCDC_3 2
83/* LDOs */
84#define TPS65023_LDO_1 3
85#define TPS65023_LDO_2 4
86
87#define TPS65023_MAX_REG_ID TPS65023_LDO_2
88
89/* Supported voltage values for regulators */
90static const unsigned int VCORE_VSEL_table[] = {
91 800000, 825000, 850000, 875000,
92 900000, 925000, 950000, 975000,
93 1000000, 1025000, 1050000, 1075000,
94 1100000, 1125000, 1150000, 1175000,
95 1200000, 1225000, 1250000, 1275000,
96 1300000, 1325000, 1350000, 1375000,
97 1400000, 1425000, 1450000, 1475000,
98 1500000, 1525000, 1550000, 1600000,
99};
100
101static const unsigned int DCDC_FIXED_3300000_VSEL_table[] = {
102 3300000,
103};
104
105static const unsigned int DCDC_FIXED_1800000_VSEL_table[] = {
106 1800000,
107};
108
109/* Supported voltage values for LDO regulators for tps65020 */
110static const unsigned int TPS65020_LDO_VSEL_table[] = {
111 1000000, 1050000, 1100000, 1300000,
112 1800000, 2500000, 3000000, 3300000,
113};
114
115/* Supported voltage values for LDO regulators
116 * for tps65021 and tps65023 */
117static const unsigned int TPS65023_LDO1_VSEL_table[] = {
118 1000000, 1100000, 1300000, 1800000,
119 2200000, 2600000, 2800000, 3150000,
120};
121
122static const unsigned int TPS65023_LDO2_VSEL_table[] = {
123 1050000, 1200000, 1300000, 1800000,
124 2500000, 2800000, 3000000, 3300000,
125};
126
127/* Regulator specific details */
128struct tps_info {
129 const char *name;
130 u8 table_len;
131 const unsigned int *table;
132};
133
134/* PMIC details */
135struct tps_pmic {
136 struct regulator_desc desc[TPS65023_NUM_REGULATOR];
137 struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
138 const struct tps_info *info[TPS65023_NUM_REGULATOR];
139 struct regmap *regmap;
140 u8 core_regulator;
141};
142
143/* Struct passed as driver data */
144struct tps_driver_data {
145 const struct tps_info *info;
146 u8 core_regulator;
147};
148
149static int tps65023_dcdc_get_voltage_sel(struct regulator_dev *dev)
150{
151 struct tps_pmic *tps = rdev_get_drvdata(dev);
152 int dcdc = rdev_get_id(dev);
153
154 if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
155 return -EINVAL;
156
157 if (dcdc != tps->core_regulator)
158 return 0;
159
160 return regulator_get_voltage_sel_regmap(dev);
161}
162
163static int tps65023_dcdc_set_voltage_sel(struct regulator_dev *dev,
164 unsigned selector)
165{
166 struct tps_pmic *tps = rdev_get_drvdata(dev);
167 int dcdc = rdev_get_id(dev);
168
169 if (dcdc != tps->core_regulator)
170 return -EINVAL;
171
172 return regulator_set_voltage_sel_regmap(dev, selector);
173}
174
175/* Operations permitted on VDCDCx */
176static struct regulator_ops tps65023_dcdc_ops = {
177 .is_enabled = regulator_is_enabled_regmap,
178 .enable = regulator_enable_regmap,
179 .disable = regulator_disable_regmap,
180 .get_voltage_sel = tps65023_dcdc_get_voltage_sel,
181 .set_voltage_sel = tps65023_dcdc_set_voltage_sel,
182 .list_voltage = regulator_list_voltage_table,
183 .map_voltage = regulator_map_voltage_ascend,
184};
185
186/* Operations permitted on LDOx */
187static struct regulator_ops tps65023_ldo_ops = {
188 .is_enabled = regulator_is_enabled_regmap,
189 .enable = regulator_enable_regmap,
190 .disable = regulator_disable_regmap,
191 .get_voltage_sel = regulator_get_voltage_sel_regmap,
192 .set_voltage_sel = regulator_set_voltage_sel_regmap,
193 .list_voltage = regulator_list_voltage_table,
194 .map_voltage = regulator_map_voltage_ascend,
195};
196
197static struct regmap_config tps65023_regmap_config = {
198 .reg_bits = 8,
199 .val_bits = 8,
200};
201
202static int tps_65023_probe(struct i2c_client *client,
203 const struct i2c_device_id *id)
204{
205 const struct tps_driver_data *drv_data = (void *)id->driver_data;
206 const struct tps_info *info = drv_data->info;
207 struct regulator_config config = { };
208 struct regulator_init_data *init_data;
209 struct regulator_dev *rdev;
210 struct tps_pmic *tps;
211 int i;
212 int error;
213
214 if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
215 return -EIO;
216
217 /**
218 * init_data points to array of regulator_init structures
219 * coming from the board-evm file.
220 */
221 init_data = dev_get_platdata(&client->dev);
222 if (!init_data)
223 return -EIO;
224
225 tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
226 if (!tps)
227 return -ENOMEM;
228
229 tps->regmap = devm_regmap_init_i2c(client, &tps65023_regmap_config);
230 if (IS_ERR(tps->regmap)) {
231 error = PTR_ERR(tps->regmap);
232 dev_err(&client->dev, "Failed to allocate register map: %d\n",
233 error);
234 return error;
235 }
236
237 /* common for all regulators */
238 tps->core_regulator = drv_data->core_regulator;
239
240 for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) {
241 /* Store regulator specific information */
242 tps->info[i] = info;
243
244 tps->desc[i].name = info->name;
245 tps->desc[i].id = i;
246 tps->desc[i].n_voltages = info->table_len;
247 tps->desc[i].volt_table = info->table;
248 tps->desc[i].ops = (i > TPS65023_DCDC_3 ?
249 &tps65023_ldo_ops : &tps65023_dcdc_ops);
250 tps->desc[i].type = REGULATOR_VOLTAGE;
251 tps->desc[i].owner = THIS_MODULE;
252
253 tps->desc[i].enable_reg = TPS65023_REG_REG_CTRL;
254 switch (i) {
255 case TPS65023_LDO_1:
256 tps->desc[i].vsel_reg = TPS65023_REG_LDO_CTRL;
257 tps->desc[i].vsel_mask = 0x07;
258 tps->desc[i].enable_mask = 1 << 1;
259 break;
260 case TPS65023_LDO_2:
261 tps->desc[i].vsel_reg = TPS65023_REG_LDO_CTRL;
262 tps->desc[i].vsel_mask = 0x70;
263 tps->desc[i].enable_mask = 1 << 2;
264 break;
265 default: /* DCDCx */
266 tps->desc[i].enable_mask =
267 1 << (TPS65023_NUM_REGULATOR - i);
268 tps->desc[i].vsel_reg = TPS65023_REG_DEF_CORE;
269 tps->desc[i].vsel_mask = info->table_len - 1;
270 tps->desc[i].apply_reg = TPS65023_REG_CON_CTRL2;
271 tps->desc[i].apply_bit = TPS65023_REG_CTRL2_GO;
272 }
273
274 config.dev = &client->dev;
275 config.init_data = init_data;
276 config.driver_data = tps;
277 config.regmap = tps->regmap;
278
279 /* Register the regulators */
280 rdev = devm_regulator_register(&client->dev, &tps->desc[i],
281 &config);
282 if (IS_ERR(rdev)) {
283 dev_err(&client->dev, "failed to register %s\n",
284 id->name);
285 return PTR_ERR(rdev);
286 }
287
288 /* Save regulator for cleanup */
289 tps->rdev[i] = rdev;
290 }
291
292 i2c_set_clientdata(client, tps);
293
294 /* Enable setting output voltage by I2C */
295 regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
296 TPS65023_REG_CTRL2_CORE_ADJ,
297 TPS65023_REG_CTRL2_CORE_ADJ);
298
299 return 0;
300}
301
302static const struct tps_info tps65020_regs[] = {
303 {
304 .name = "VDCDC1",
305 .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table),
306 .table = DCDC_FIXED_3300000_VSEL_table,
307 },
308 {
309 .name = "VDCDC2",
310 .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table),
311 .table = DCDC_FIXED_1800000_VSEL_table,
312 },
313 {
314 .name = "VDCDC3",
315 .table_len = ARRAY_SIZE(VCORE_VSEL_table),
316 .table = VCORE_VSEL_table,
317 },
318 {
319 .name = "LDO1",
320 .table_len = ARRAY_SIZE(TPS65020_LDO_VSEL_table),
321 .table = TPS65020_LDO_VSEL_table,
322 },
323 {
324 .name = "LDO2",
325 .table_len = ARRAY_SIZE(TPS65020_LDO_VSEL_table),
326 .table = TPS65020_LDO_VSEL_table,
327 },
328};
329
330static const struct tps_info tps65021_regs[] = {
331 {
332 .name = "VDCDC1",
333 .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table),
334 .table = DCDC_FIXED_3300000_VSEL_table,
335 },
336 {
337 .name = "VDCDC2",
338 .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table),
339 .table = DCDC_FIXED_1800000_VSEL_table,
340 },
341 {
342 .name = "VDCDC3",
343 .table_len = ARRAY_SIZE(VCORE_VSEL_table),
344 .table = VCORE_VSEL_table,
345 },
346 {
347 .name = "LDO1",
348 .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
349 .table = TPS65023_LDO1_VSEL_table,
350 },
351 {
352 .name = "LDO2",
353 .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
354 .table = TPS65023_LDO2_VSEL_table,
355 },
356};
357
358static const struct tps_info tps65023_regs[] = {
359 {
360 .name = "VDCDC1",
361 .table_len = ARRAY_SIZE(VCORE_VSEL_table),
362 .table = VCORE_VSEL_table,
363 },
364 {
365 .name = "VDCDC2",
366 .table_len = ARRAY_SIZE(DCDC_FIXED_3300000_VSEL_table),
367 .table = DCDC_FIXED_3300000_VSEL_table,
368 },
369 {
370 .name = "VDCDC3",
371 .table_len = ARRAY_SIZE(DCDC_FIXED_1800000_VSEL_table),
372 .table = DCDC_FIXED_1800000_VSEL_table,
373 },
374 {
375 .name = "LDO1",
376 .table_len = ARRAY_SIZE(TPS65023_LDO1_VSEL_table),
377 .table = TPS65023_LDO1_VSEL_table,
378 },
379 {
380 .name = "LDO2",
381 .table_len = ARRAY_SIZE(TPS65023_LDO2_VSEL_table),
382 .table = TPS65023_LDO2_VSEL_table,
383 },
384};
385
386static struct tps_driver_data tps65020_drv_data = {
387 .info = tps65020_regs,
388 .core_regulator = TPS65023_DCDC_3,
389};
390
391static struct tps_driver_data tps65021_drv_data = {
392 .info = tps65021_regs,
393 .core_regulator = TPS65023_DCDC_3,
394};
395
396static struct tps_driver_data tps65023_drv_data = {
397 .info = tps65023_regs,
398 .core_regulator = TPS65023_DCDC_1,
399};
400
401static const struct i2c_device_id tps_65023_id[] = {
402 {.name = "tps65023",
403 .driver_data = (unsigned long) &tps65023_drv_data},
404 {.name = "tps65021",
405 .driver_data = (unsigned long) &tps65021_drv_data,},
406 {.name = "tps65020",
407 .driver_data = (unsigned long) &tps65020_drv_data},
408 { },
409};
410
411MODULE_DEVICE_TABLE(i2c, tps_65023_id);
412
413static struct i2c_driver tps_65023_i2c_driver = {
414 .driver = {
415 .name = "tps65023",
416 .owner = THIS_MODULE,
417 },
418 .probe = tps_65023_probe,
419 .id_table = tps_65023_id,
420};
421
422static int __init tps_65023_init(void)
423{
424 return i2c_add_driver(&tps_65023_i2c_driver);
425}
426subsys_initcall(tps_65023_init);
427
428static void __exit tps_65023_cleanup(void)
429{
430 i2c_del_driver(&tps_65023_i2c_driver);
431}
432module_exit(tps_65023_cleanup);
433
434MODULE_AUTHOR("Texas Instruments");
435MODULE_DESCRIPTION("TPS65023 voltage regulator driver");
436MODULE_LICENSE("GPL v2");