Loading...
1/*
2 * tps65218-regulator.c
3 *
4 * Regulator driver for TPS65218 PMIC
5 *
6 * Copyright (C) 2014 Texas Instruments 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 version 2 as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
13 * kind, whether expressed or implied; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License version 2 for more details.
16 */
17
18#include <linux/kernel.h>
19#include <linux/module.h>
20#include <linux/device.h>
21#include <linux/init.h>
22#include <linux/err.h>
23#include <linux/platform_device.h>
24#include <linux/of_device.h>
25#include <linux/regulator/of_regulator.h>
26#include <linux/regulator/driver.h>
27#include <linux/regulator/machine.h>
28#include <linux/mfd/tps65218.h>
29
30static unsigned int tps65218_ramp_delay = 4000;
31
32enum tps65218_regulators { DCDC1, DCDC2, DCDC3, DCDC4, DCDC5, DCDC6, LDO1 };
33
34#define TPS65218_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _er, _em, _t, \
35 _lr, _nlr) \
36 { \
37 .name = _name, \
38 .id = _id, \
39 .ops = &_ops, \
40 .n_voltages = _n, \
41 .type = REGULATOR_VOLTAGE, \
42 .owner = THIS_MODULE, \
43 .vsel_reg = _vr, \
44 .vsel_mask = _vm, \
45 .enable_reg = _er, \
46 .enable_mask = _em, \
47 .volt_table = _t, \
48 .linear_ranges = _lr, \
49 .n_linear_ranges = _nlr, \
50 } \
51
52#define TPS65218_INFO(_id, _nm, _min, _max) \
53 { \
54 .id = _id, \
55 .name = _nm, \
56 .min_uV = _min, \
57 .max_uV = _max, \
58 }
59
60static const struct regulator_linear_range dcdc1_dcdc2_ranges[] = {
61 REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
62 REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
63};
64
65static const struct regulator_linear_range ldo1_dcdc3_ranges[] = {
66 REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
67 REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
68};
69
70static const struct regulator_linear_range dcdc4_ranges[] = {
71 REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
72 REGULATOR_LINEAR_RANGE(1550000, 0x10, 0x34, 50000),
73};
74
75static struct tps_info tps65218_pmic_regs[] = {
76 TPS65218_INFO(0, "DCDC1", 850000, 167500),
77 TPS65218_INFO(1, "DCDC2", 850000, 1675000),
78 TPS65218_INFO(2, "DCDC3", 900000, 3400000),
79 TPS65218_INFO(3, "DCDC4", 1175000, 3400000),
80 TPS65218_INFO(4, "DCDC5", 1000000, 1000000),
81 TPS65218_INFO(5, "DCDC6", 1800000, 1800000),
82 TPS65218_INFO(6, "LDO1", 900000, 3400000),
83};
84
85#define TPS65218_OF_MATCH(comp, label) \
86 { \
87 .compatible = comp, \
88 .data = &label, \
89 }
90
91static const struct of_device_id tps65218_of_match[] = {
92 TPS65218_OF_MATCH("ti,tps65218-dcdc1", tps65218_pmic_regs[DCDC1]),
93 TPS65218_OF_MATCH("ti,tps65218-dcdc2", tps65218_pmic_regs[DCDC2]),
94 TPS65218_OF_MATCH("ti,tps65218-dcdc3", tps65218_pmic_regs[DCDC3]),
95 TPS65218_OF_MATCH("ti,tps65218-dcdc4", tps65218_pmic_regs[DCDC4]),
96 TPS65218_OF_MATCH("ti,tps65218-dcdc5", tps65218_pmic_regs[DCDC5]),
97 TPS65218_OF_MATCH("ti,tps65218-dcdc6", tps65218_pmic_regs[DCDC6]),
98 TPS65218_OF_MATCH("ti,tps65218-ldo1", tps65218_pmic_regs[LDO1]),
99 { }
100};
101MODULE_DEVICE_TABLE(of, tps65218_of_match);
102
103static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
104 unsigned selector)
105{
106 int ret;
107 struct tps65218 *tps = rdev_get_drvdata(dev);
108 unsigned int rid = rdev_get_id(dev);
109
110 /* Set the voltage based on vsel value and write protect level is 2 */
111 ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
112 selector, TPS65218_PROTECT_L1);
113
114 /* Set GO bit for DCDC1/2 to initiate voltage transistion */
115 switch (rid) {
116 case TPS65218_DCDC_1:
117 case TPS65218_DCDC_2:
118 ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
119 TPS65218_SLEW_RATE_GO,
120 TPS65218_SLEW_RATE_GO,
121 TPS65218_PROTECT_L1);
122 break;
123 }
124
125 return ret;
126}
127
128static int tps65218_pmic_enable(struct regulator_dev *dev)
129{
130 struct tps65218 *tps = rdev_get_drvdata(dev);
131 unsigned int rid = rdev_get_id(dev);
132
133 if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
134 return -EINVAL;
135
136 /* Enable the regulator and password protection is level 1 */
137 return tps65218_set_bits(tps, dev->desc->enable_reg,
138 dev->desc->enable_mask, dev->desc->enable_mask,
139 TPS65218_PROTECT_L1);
140}
141
142static int tps65218_pmic_disable(struct regulator_dev *dev)
143{
144 struct tps65218 *tps = rdev_get_drvdata(dev);
145 unsigned int rid = rdev_get_id(dev);
146
147 if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
148 return -EINVAL;
149
150 /* Disable the regulator and password protection is level 1 */
151 return tps65218_clear_bits(tps, dev->desc->enable_reg,
152 dev->desc->enable_mask, TPS65218_PROTECT_L1);
153}
154
155static int tps65218_set_voltage_time_sel(struct regulator_dev *rdev,
156 unsigned int old_selector, unsigned int new_selector)
157{
158 int old_uv, new_uv;
159
160 old_uv = regulator_list_voltage_linear_range(rdev, old_selector);
161 if (old_uv < 0)
162 return old_uv;
163
164 new_uv = regulator_list_voltage_linear_range(rdev, new_selector);
165 if (new_uv < 0)
166 return new_uv;
167
168 return DIV_ROUND_UP(abs(old_uv - new_uv), tps65218_ramp_delay);
169}
170
171/* Operations permitted on DCDC1, DCDC2 */
172static struct regulator_ops tps65218_dcdc12_ops = {
173 .is_enabled = regulator_is_enabled_regmap,
174 .enable = tps65218_pmic_enable,
175 .disable = tps65218_pmic_disable,
176 .get_voltage_sel = regulator_get_voltage_sel_regmap,
177 .set_voltage_sel = tps65218_pmic_set_voltage_sel,
178 .list_voltage = regulator_list_voltage_linear_range,
179 .map_voltage = regulator_map_voltage_linear_range,
180 .set_voltage_time_sel = tps65218_set_voltage_time_sel,
181};
182
183/* Operations permitted on DCDC3, DCDC4 and LDO1 */
184static struct regulator_ops tps65218_ldo1_dcdc34_ops = {
185 .is_enabled = regulator_is_enabled_regmap,
186 .enable = tps65218_pmic_enable,
187 .disable = tps65218_pmic_disable,
188 .get_voltage_sel = regulator_get_voltage_sel_regmap,
189 .set_voltage_sel = tps65218_pmic_set_voltage_sel,
190 .list_voltage = regulator_list_voltage_linear_range,
191 .map_voltage = regulator_map_voltage_linear_range,
192};
193
194/* Operations permitted on DCDC5, DCDC6 */
195static struct regulator_ops tps65218_dcdc56_pmic_ops = {
196 .is_enabled = regulator_is_enabled_regmap,
197 .enable = tps65218_pmic_enable,
198 .disable = tps65218_pmic_disable,
199};
200
201static const struct regulator_desc regulators[] = {
202 TPS65218_REGULATOR("DCDC1", TPS65218_DCDC_1, tps65218_dcdc12_ops, 64,
203 TPS65218_REG_CONTROL_DCDC1,
204 TPS65218_CONTROL_DCDC1_MASK,
205 TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC1_EN, NULL,
206 dcdc1_dcdc2_ranges, 2),
207 TPS65218_REGULATOR("DCDC2", TPS65218_DCDC_2, tps65218_dcdc12_ops, 64,
208 TPS65218_REG_CONTROL_DCDC2,
209 TPS65218_CONTROL_DCDC2_MASK,
210 TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC2_EN, NULL,
211 dcdc1_dcdc2_ranges, 2),
212 TPS65218_REGULATOR("DCDC3", TPS65218_DCDC_3, tps65218_ldo1_dcdc34_ops,
213 64, TPS65218_REG_CONTROL_DCDC3,
214 TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
215 TPS65218_ENABLE1_DC3_EN, NULL,
216 ldo1_dcdc3_ranges, 2),
217 TPS65218_REGULATOR("DCDC4", TPS65218_DCDC_4, tps65218_ldo1_dcdc34_ops,
218 53, TPS65218_REG_CONTROL_DCDC4,
219 TPS65218_CONTROL_DCDC4_MASK,
220 TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC4_EN, NULL,
221 dcdc4_ranges, 2),
222 TPS65218_REGULATOR("DCDC5", TPS65218_DCDC_5, tps65218_dcdc56_pmic_ops,
223 1, -1, -1, TPS65218_REG_ENABLE1,
224 TPS65218_ENABLE1_DC5_EN, NULL, NULL, 0),
225 TPS65218_REGULATOR("DCDC6", TPS65218_DCDC_6, tps65218_dcdc56_pmic_ops,
226 1, -1, -1, TPS65218_REG_ENABLE1,
227 TPS65218_ENABLE1_DC6_EN, NULL, NULL, 0),
228 TPS65218_REGULATOR("LDO1", TPS65218_LDO_1, tps65218_ldo1_dcdc34_ops, 64,
229 TPS65218_REG_CONTROL_DCDC4,
230 TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
231 TPS65218_ENABLE2_LDO1_EN, NULL, ldo1_dcdc3_ranges,
232 2),
233};
234
235static int tps65218_regulator_probe(struct platform_device *pdev)
236{
237 struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
238 struct regulator_init_data *init_data;
239 const struct tps_info *template;
240 struct regulator_dev *rdev;
241 const struct of_device_id *match;
242 struct regulator_config config = { };
243 int id;
244
245 match = of_match_device(tps65218_of_match, &pdev->dev);
246 if (!match)
247 return -ENODEV;
248
249 template = match->data;
250 id = template->id;
251 init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node);
252
253 platform_set_drvdata(pdev, tps);
254
255 tps->info[id] = &tps65218_pmic_regs[id];
256 config.dev = &pdev->dev;
257 config.init_data = init_data;
258 config.driver_data = tps;
259 config.regmap = tps->regmap;
260
261 rdev = devm_regulator_register(&pdev->dev, ®ulators[id], &config);
262 if (IS_ERR(rdev)) {
263 dev_err(tps->dev, "failed to register %s regulator\n",
264 pdev->name);
265 return PTR_ERR(rdev);
266 }
267
268 return 0;
269}
270
271static struct platform_driver tps65218_regulator_driver = {
272 .driver = {
273 .name = "tps65218-pmic",
274 .owner = THIS_MODULE,
275 .of_match_table = tps65218_of_match,
276 },
277 .probe = tps65218_regulator_probe,
278};
279
280module_platform_driver(tps65218_regulator_driver);
281
282MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
283MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
284MODULE_ALIAS("platform:tps65218-pmic");
285MODULE_LICENSE("GPL v2");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * tps65218-regulator.c
4 *
5 * Regulator driver for TPS65218 PMIC
6 *
7 * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/
8 */
9
10#include <linux/kernel.h>
11#include <linux/mod_devicetable.h>
12#include <linux/module.h>
13#include <linux/device.h>
14#include <linux/init.h>
15#include <linux/err.h>
16#include <linux/platform_device.h>
17#include <linux/regmap.h>
18#include <linux/regulator/of_regulator.h>
19#include <linux/regulator/driver.h>
20#include <linux/regulator/machine.h>
21#include <linux/mfd/tps65218.h>
22
23#define TPS65218_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
24 _em, _cr, _cm, _lr, _nlr, _delay, _fuv, _sr, _sm, \
25 _ct, _ncl) \
26 { \
27 .name = _name, \
28 .of_match = _of, \
29 .id = _id, \
30 .ops = &_ops, \
31 .n_voltages = _n, \
32 .type = _type, \
33 .owner = THIS_MODULE, \
34 .vsel_reg = _vr, \
35 .vsel_mask = _vm, \
36 .csel_reg = _cr, \
37 .csel_mask = _cm, \
38 .curr_table = _ct, \
39 .n_current_limits = _ncl, \
40 .enable_reg = _er, \
41 .enable_mask = _em, \
42 .volt_table = NULL, \
43 .linear_ranges = _lr, \
44 .n_linear_ranges = _nlr, \
45 .ramp_delay = _delay, \
46 .fixed_uV = _fuv, \
47 .bypass_reg = _sr, \
48 .bypass_mask = _sm, \
49 } \
50
51static const struct linear_range dcdc1_dcdc2_ranges[] = {
52 REGULATOR_LINEAR_RANGE(850000, 0x0, 0x32, 10000),
53 REGULATOR_LINEAR_RANGE(1375000, 0x33, 0x3f, 25000),
54};
55
56static const struct linear_range ldo1_dcdc3_ranges[] = {
57 REGULATOR_LINEAR_RANGE(900000, 0x0, 0x1a, 25000),
58 REGULATOR_LINEAR_RANGE(1600000, 0x1b, 0x3f, 50000),
59};
60
61static const struct linear_range dcdc4_ranges[] = {
62 REGULATOR_LINEAR_RANGE(1175000, 0x0, 0xf, 25000),
63 REGULATOR_LINEAR_RANGE(1600000, 0x10, 0x34, 50000),
64};
65
66static int tps65218_pmic_set_voltage_sel(struct regulator_dev *dev,
67 unsigned selector)
68{
69 int ret;
70 struct tps65218 *tps = rdev_get_drvdata(dev);
71 unsigned int rid = rdev_get_id(dev);
72
73 /* Set the voltage based on vsel value and write protect level is 2 */
74 ret = tps65218_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
75 selector, TPS65218_PROTECT_L1);
76
77 /* Set GO bit for DCDC1/2 to initiate voltage transistion */
78 switch (rid) {
79 case TPS65218_DCDC_1:
80 case TPS65218_DCDC_2:
81 ret = tps65218_set_bits(tps, TPS65218_REG_CONTRL_SLEW_RATE,
82 TPS65218_SLEW_RATE_GO,
83 TPS65218_SLEW_RATE_GO,
84 TPS65218_PROTECT_L1);
85 break;
86 }
87
88 return ret;
89}
90
91static int tps65218_pmic_enable(struct regulator_dev *dev)
92{
93 struct tps65218 *tps = rdev_get_drvdata(dev);
94 int rid = rdev_get_id(dev);
95
96 if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
97 return -EINVAL;
98
99 /* Enable the regulator and password protection is level 1 */
100 return tps65218_set_bits(tps, dev->desc->enable_reg,
101 dev->desc->enable_mask, dev->desc->enable_mask,
102 TPS65218_PROTECT_L1);
103}
104
105static int tps65218_pmic_disable(struct regulator_dev *dev)
106{
107 struct tps65218 *tps = rdev_get_drvdata(dev);
108 int rid = rdev_get_id(dev);
109
110 if (rid < TPS65218_DCDC_1 || rid > TPS65218_LDO_1)
111 return -EINVAL;
112
113 /* Disable the regulator and password protection is level 1 */
114 return tps65218_clear_bits(tps, dev->desc->enable_reg,
115 dev->desc->enable_mask, TPS65218_PROTECT_L1);
116}
117
118static int tps65218_pmic_set_suspend_enable(struct regulator_dev *dev)
119{
120 struct tps65218 *tps = rdev_get_drvdata(dev);
121 unsigned int rid = rdev_get_id(dev);
122
123 if (rid > TPS65218_LDO_1)
124 return -EINVAL;
125
126 return tps65218_clear_bits(tps, dev->desc->bypass_reg,
127 dev->desc->bypass_mask,
128 TPS65218_PROTECT_L1);
129}
130
131static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
132{
133 struct tps65218 *tps = rdev_get_drvdata(dev);
134 unsigned int rid = rdev_get_id(dev);
135
136 if (rid > TPS65218_LDO_1)
137 return -EINVAL;
138
139 /*
140 * Certain revisions of TPS65218 will need to have DCDC3 regulator
141 * enabled always, otherwise an immediate system reboot will occur
142 * during poweroff.
143 */
144 if (rid == TPS65218_DCDC_3 && tps->rev == TPS65218_REV_2_1)
145 return 0;
146
147 if (!tps->strobes[rid]) {
148 if (rid == TPS65218_DCDC_3)
149 tps->strobes[rid] = 3;
150 else
151 return -EINVAL;
152 }
153
154 return tps65218_set_bits(tps, dev->desc->bypass_reg,
155 dev->desc->bypass_mask,
156 tps->strobes[rid], TPS65218_PROTECT_L1);
157}
158
159/* Operations permitted on DCDC1, DCDC2 */
160static const struct regulator_ops tps65218_dcdc12_ops = {
161 .is_enabled = regulator_is_enabled_regmap,
162 .enable = tps65218_pmic_enable,
163 .disable = tps65218_pmic_disable,
164 .get_voltage_sel = regulator_get_voltage_sel_regmap,
165 .set_voltage_sel = tps65218_pmic_set_voltage_sel,
166 .list_voltage = regulator_list_voltage_linear_range,
167 .map_voltage = regulator_map_voltage_linear_range,
168 .set_voltage_time_sel = regulator_set_voltage_time_sel,
169 .set_suspend_enable = tps65218_pmic_set_suspend_enable,
170 .set_suspend_disable = tps65218_pmic_set_suspend_disable,
171};
172
173/* Operations permitted on DCDC3, DCDC4 and LDO1 */
174static const struct regulator_ops tps65218_ldo1_dcdc34_ops = {
175 .is_enabled = regulator_is_enabled_regmap,
176 .enable = tps65218_pmic_enable,
177 .disable = tps65218_pmic_disable,
178 .get_voltage_sel = regulator_get_voltage_sel_regmap,
179 .set_voltage_sel = tps65218_pmic_set_voltage_sel,
180 .list_voltage = regulator_list_voltage_linear_range,
181 .map_voltage = regulator_map_voltage_linear_range,
182 .set_suspend_enable = tps65218_pmic_set_suspend_enable,
183 .set_suspend_disable = tps65218_pmic_set_suspend_disable,
184};
185
186static const unsigned int ls3_currents[] = { 100000, 200000, 500000, 1000000 };
187
188static int tps65218_pmic_set_input_current_lim(struct regulator_dev *dev,
189 int lim_uA)
190{
191 unsigned int index = 0;
192 unsigned int num_currents = ARRAY_SIZE(ls3_currents);
193 struct tps65218 *tps = rdev_get_drvdata(dev);
194
195 while (index < num_currents && ls3_currents[index] != lim_uA)
196 index++;
197
198 if (index == num_currents)
199 return -EINVAL;
200
201 return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
202 index << __builtin_ctz(dev->desc->csel_mask),
203 TPS65218_PROTECT_L1);
204}
205
206static int tps65218_pmic_set_current_limit(struct regulator_dev *dev,
207 int min_uA, int max_uA)
208{
209 int index = 0;
210 unsigned int num_currents = ARRAY_SIZE(ls3_currents);
211 struct tps65218 *tps = rdev_get_drvdata(dev);
212
213 while (index < num_currents && ls3_currents[index] <= max_uA)
214 index++;
215
216 index--;
217
218 if (index < 0 || ls3_currents[index] < min_uA)
219 return -EINVAL;
220
221 return tps65218_set_bits(tps, dev->desc->csel_reg, dev->desc->csel_mask,
222 index << __builtin_ctz(dev->desc->csel_mask),
223 TPS65218_PROTECT_L1);
224}
225
226static const struct regulator_ops tps65218_ls23_ops = {
227 .is_enabled = regulator_is_enabled_regmap,
228 .enable = tps65218_pmic_enable,
229 .disable = tps65218_pmic_disable,
230 .set_input_current_limit = tps65218_pmic_set_input_current_lim,
231 .set_current_limit = tps65218_pmic_set_current_limit,
232 .get_current_limit = regulator_get_current_limit_regmap,
233};
234
235/* Operations permitted on DCDC5, DCDC6 */
236static const struct regulator_ops tps65218_dcdc56_pmic_ops = {
237 .is_enabled = regulator_is_enabled_regmap,
238 .enable = tps65218_pmic_enable,
239 .disable = tps65218_pmic_disable,
240 .set_suspend_enable = tps65218_pmic_set_suspend_enable,
241 .set_suspend_disable = tps65218_pmic_set_suspend_disable,
242};
243
244static const struct regulator_desc regulators[] = {
245 TPS65218_REGULATOR("DCDC1", "regulator-dcdc1", TPS65218_DCDC_1,
246 REGULATOR_VOLTAGE, tps65218_dcdc12_ops, 64,
247 TPS65218_REG_CONTROL_DCDC1,
248 TPS65218_CONTROL_DCDC1_MASK, TPS65218_REG_ENABLE1,
249 TPS65218_ENABLE1_DC1_EN, 0, 0, dcdc1_dcdc2_ranges,
250 2, 4000, 0, TPS65218_REG_SEQ3,
251 TPS65218_SEQ3_DC1_SEQ_MASK, NULL, 0),
252 TPS65218_REGULATOR("DCDC2", "regulator-dcdc2", TPS65218_DCDC_2,
253 REGULATOR_VOLTAGE, tps65218_dcdc12_ops, 64,
254 TPS65218_REG_CONTROL_DCDC2,
255 TPS65218_CONTROL_DCDC2_MASK, TPS65218_REG_ENABLE1,
256 TPS65218_ENABLE1_DC2_EN, 0, 0, dcdc1_dcdc2_ranges,
257 2, 4000, 0, TPS65218_REG_SEQ3,
258 TPS65218_SEQ3_DC2_SEQ_MASK, NULL, 0),
259 TPS65218_REGULATOR("DCDC3", "regulator-dcdc3", TPS65218_DCDC_3,
260 REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 64,
261 TPS65218_REG_CONTROL_DCDC3,
262 TPS65218_CONTROL_DCDC3_MASK, TPS65218_REG_ENABLE1,
263 TPS65218_ENABLE1_DC3_EN, 0, 0, ldo1_dcdc3_ranges, 2,
264 0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC3_SEQ_MASK,
265 NULL, 0),
266 TPS65218_REGULATOR("DCDC4", "regulator-dcdc4", TPS65218_DCDC_4,
267 REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 53,
268 TPS65218_REG_CONTROL_DCDC4,
269 TPS65218_CONTROL_DCDC4_MASK, TPS65218_REG_ENABLE1,
270 TPS65218_ENABLE1_DC4_EN, 0, 0, dcdc4_ranges, 2,
271 0, 0, TPS65218_REG_SEQ4, TPS65218_SEQ4_DC4_SEQ_MASK,
272 NULL, 0),
273 TPS65218_REGULATOR("DCDC5", "regulator-dcdc5", TPS65218_DCDC_5,
274 REGULATOR_VOLTAGE, tps65218_dcdc56_pmic_ops, 1, -1,
275 -1, TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC5_EN, 0,
276 0, NULL, 0, 0, 1000000, TPS65218_REG_SEQ5,
277 TPS65218_SEQ5_DC5_SEQ_MASK, NULL, 0),
278 TPS65218_REGULATOR("DCDC6", "regulator-dcdc6", TPS65218_DCDC_6,
279 REGULATOR_VOLTAGE, tps65218_dcdc56_pmic_ops, 1, -1,
280 -1, TPS65218_REG_ENABLE1, TPS65218_ENABLE1_DC6_EN, 0,
281 0, NULL, 0, 0, 1800000, TPS65218_REG_SEQ5,
282 TPS65218_SEQ5_DC6_SEQ_MASK, NULL, 0),
283 TPS65218_REGULATOR("LDO1", "regulator-ldo1", TPS65218_LDO_1,
284 REGULATOR_VOLTAGE, tps65218_ldo1_dcdc34_ops, 64,
285 TPS65218_REG_CONTROL_LDO1,
286 TPS65218_CONTROL_LDO1_MASK, TPS65218_REG_ENABLE2,
287 TPS65218_ENABLE2_LDO1_EN, 0, 0, ldo1_dcdc3_ranges,
288 2, 0, 0, TPS65218_REG_SEQ6,
289 TPS65218_SEQ6_LDO1_SEQ_MASK, NULL, 0),
290 TPS65218_REGULATOR("LS2", "regulator-ls2", TPS65218_LS_2,
291 REGULATOR_CURRENT, tps65218_ls23_ops, 0, 0, 0,
292 TPS65218_REG_ENABLE2, TPS65218_ENABLE2_LS2_EN,
293 TPS65218_REG_CONFIG2, TPS65218_CONFIG2_LS2ILIM_MASK,
294 NULL, 0, 0, 0, 0, 0, ls3_currents,
295 ARRAY_SIZE(ls3_currents)),
296 TPS65218_REGULATOR("LS3", "regulator-ls3", TPS65218_LS_3,
297 REGULATOR_CURRENT, tps65218_ls23_ops, 0, 0, 0,
298 TPS65218_REG_ENABLE2, TPS65218_ENABLE2_LS3_EN,
299 TPS65218_REG_CONFIG2, TPS65218_CONFIG2_LS3ILIM_MASK,
300 NULL, 0, 0, 0, 0, 0, ls3_currents,
301 ARRAY_SIZE(ls3_currents)),
302};
303
304static int tps65218_regulator_probe(struct platform_device *pdev)
305{
306 struct tps65218 *tps = dev_get_drvdata(pdev->dev.parent);
307 struct regulator_dev *rdev;
308 struct regulator_config config = { };
309 int i, ret;
310 unsigned int val;
311
312 config.dev = &pdev->dev;
313 config.dev->of_node = tps->dev->of_node;
314 config.driver_data = tps;
315 config.regmap = tps->regmap;
316
317 /* Allocate memory for strobes */
318 tps->strobes = devm_kcalloc(&pdev->dev,
319 TPS65218_NUM_REGULATOR, sizeof(u8),
320 GFP_KERNEL);
321 if (!tps->strobes)
322 return -ENOMEM;
323
324 for (i = 0; i < ARRAY_SIZE(regulators); i++) {
325 rdev = devm_regulator_register(&pdev->dev, ®ulators[i],
326 &config);
327 if (IS_ERR(rdev)) {
328 dev_err(tps->dev, "failed to register %s regulator\n",
329 pdev->name);
330 return PTR_ERR(rdev);
331 }
332
333 ret = regmap_read(tps->regmap, regulators[i].bypass_reg, &val);
334 if (ret)
335 return ret;
336
337 tps->strobes[i] = val & regulators[i].bypass_mask;
338 }
339
340 return 0;
341}
342
343static const struct platform_device_id tps65218_regulator_id_table[] = {
344 { "tps65218-regulator", },
345 { /* sentinel */ }
346};
347MODULE_DEVICE_TABLE(platform, tps65218_regulator_id_table);
348
349static struct platform_driver tps65218_regulator_driver = {
350 .driver = {
351 .name = "tps65218-pmic",
352 .probe_type = PROBE_PREFER_ASYNCHRONOUS,
353 },
354 .probe = tps65218_regulator_probe,
355 .id_table = tps65218_regulator_id_table,
356};
357
358module_platform_driver(tps65218_regulator_driver);
359
360MODULE_AUTHOR("J Keerthy <j-keerthy@ti.com>");
361MODULE_DESCRIPTION("TPS65218 voltage regulator driver");
362MODULE_ALIAS("platform:tps65218-pmic");
363MODULE_LICENSE("GPL v2");