Commit | Line | Data |
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2aec85b2 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
a493077f AC |
2 | /* |
3 | * tps65217-regulator.c | |
4 | * | |
5 | * Regulator driver for TPS65217 PMIC | |
6 | * | |
2ca76b3e | 7 | * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/ |
a493077f AC |
8 | */ |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/module.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/err.h> | |
15 | #include <linux/platform_device.h> | |
16 | ||
1922b0f2 | 17 | #include <linux/regulator/of_regulator.h> |
a493077f AC |
18 | #include <linux/regulator/driver.h> |
19 | #include <linux/regulator/machine.h> | |
20 | #include <linux/mfd/tps65217.h> | |
21 | ||
7d42a7f2 | 22 | #define TPS65217_REGULATOR(_name, _id, _of_match, _ops, _n, _vr, _vm, _em, \ |
3de56099 | 23 | _t, _lr, _nlr, _sr, _sm) \ |
a493077f AC |
24 | { \ |
25 | .name = _name, \ | |
26 | .id = _id, \ | |
7d42a7f2 MB |
27 | .of_match = of_match_ptr(_of_match), \ |
28 | .regulators_node= of_match_ptr("regulators"), \ | |
a493077f AC |
29 | .ops = &_ops, \ |
30 | .n_voltages = _n, \ | |
31 | .type = REGULATOR_VOLTAGE, \ | |
32 | .owner = THIS_MODULE, \ | |
b4bc9ef6 AL |
33 | .vsel_reg = _vr, \ |
34 | .vsel_mask = _vm, \ | |
35 | .enable_reg = TPS65217_REG_ENABLE, \ | |
36 | .enable_mask = _em, \ | |
d172f319 | 37 | .volt_table = _t, \ |
6290d606 AL |
38 | .linear_ranges = _lr, \ |
39 | .n_linear_ranges = _nlr, \ | |
3de56099 RD |
40 | .bypass_reg = _sr, \ |
41 | .bypass_mask = _sm, \ | |
a493077f AC |
42 | } \ |
43 | ||
d172f319 | 44 | static const unsigned int LDO1_VSEL_table[] = { |
a493077f AC |
45 | 1000000, 1100000, 1200000, 1250000, |
46 | 1300000, 1350000, 1400000, 1500000, | |
47 | 1600000, 1800000, 2500000, 2750000, | |
48 | 2800000, 3000000, 3100000, 3300000, | |
49 | }; | |
50 | ||
60ab7f41 | 51 | static const struct linear_range tps65217_uv1_ranges[] = { |
8828bae4 | 52 | REGULATOR_LINEAR_RANGE(900000, 0, 24, 25000), |
689b9e02 | 53 | REGULATOR_LINEAR_RANGE(1550000, 25, 52, 50000), |
8828bae4 | 54 | REGULATOR_LINEAR_RANGE(3000000, 53, 55, 100000), |
0b5e200c | 55 | REGULATOR_LINEAR_RANGE(3300000, 56, 63, 0), |
6290d606 | 56 | }; |
a493077f | 57 | |
60ab7f41 | 58 | static const struct linear_range tps65217_uv2_ranges[] = { |
8828bae4 AL |
59 | REGULATOR_LINEAR_RANGE(1500000, 0, 8, 50000), |
60 | REGULATOR_LINEAR_RANGE(2000000, 9, 13, 100000), | |
61 | REGULATOR_LINEAR_RANGE(2450000, 14, 31, 50000), | |
a493077f AC |
62 | }; |
63 | ||
fc56911b | 64 | static int tps65217_pmic_enable(struct regulator_dev *dev) |
a493077f | 65 | { |
a493077f | 66 | struct tps65217 *tps = rdev_get_drvdata(dev); |
6bdaaf0e | 67 | int rid = rdev_get_id(dev); |
a493077f | 68 | |
fc56911b | 69 | if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) |
a493077f AC |
70 | return -EINVAL; |
71 | ||
72 | /* Enable the regulator and password protection is level 1 */ | |
73 | return tps65217_set_bits(tps, TPS65217_REG_ENABLE, | |
b4bc9ef6 AL |
74 | dev->desc->enable_mask, dev->desc->enable_mask, |
75 | TPS65217_PROTECT_L1); | |
a493077f AC |
76 | } |
77 | ||
fc56911b | 78 | static int tps65217_pmic_disable(struct regulator_dev *dev) |
a493077f AC |
79 | { |
80 | struct tps65217 *tps = rdev_get_drvdata(dev); | |
6bdaaf0e | 81 | int rid = rdev_get_id(dev); |
a493077f | 82 | |
fc56911b | 83 | if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) |
a493077f AC |
84 | return -EINVAL; |
85 | ||
86 | /* Disable the regulator and password protection is level 1 */ | |
87 | return tps65217_clear_bits(tps, TPS65217_REG_ENABLE, | |
b4bc9ef6 | 88 | dev->desc->enable_mask, TPS65217_PROTECT_L1); |
a493077f AC |
89 | } |
90 | ||
8b22285f AL |
91 | static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev, |
92 | unsigned selector) | |
a493077f | 93 | { |
8b22285f | 94 | int ret; |
a493077f | 95 | struct tps65217 *tps = rdev_get_drvdata(dev); |
8b22285f | 96 | unsigned int rid = rdev_get_id(dev); |
a493077f | 97 | |
8b22285f | 98 | /* Set the voltage based on vsel value and write protect level is 2 */ |
b4bc9ef6 | 99 | ret = tps65217_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask, |
8b22285f | 100 | selector, TPS65217_PROTECT_L2); |
a493077f | 101 | |
8b22285f AL |
102 | /* Set GO bit for DCDCx to initiate voltage transistion */ |
103 | switch (rid) { | |
104 | case TPS65217_DCDC_1 ... TPS65217_DCDC_3: | |
105 | ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW, | |
106 | TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO, | |
107 | TPS65217_PROTECT_L2); | |
108 | break; | |
109 | } | |
a493077f | 110 | |
8b22285f | 111 | return ret; |
a493077f AC |
112 | } |
113 | ||
3de56099 RD |
114 | static int tps65217_pmic_set_suspend_enable(struct regulator_dev *dev) |
115 | { | |
116 | struct tps65217 *tps = rdev_get_drvdata(dev); | |
117 | unsigned int rid = rdev_get_id(dev); | |
118 | ||
f10a5e49 | 119 | if (rid > TPS65217_LDO_4) |
3de56099 RD |
120 | return -EINVAL; |
121 | ||
122 | return tps65217_clear_bits(tps, dev->desc->bypass_reg, | |
123 | dev->desc->bypass_mask, | |
124 | TPS65217_PROTECT_L1); | |
125 | } | |
126 | ||
127 | static int tps65217_pmic_set_suspend_disable(struct regulator_dev *dev) | |
128 | { | |
129 | struct tps65217 *tps = rdev_get_drvdata(dev); | |
130 | unsigned int rid = rdev_get_id(dev); | |
131 | ||
f10a5e49 | 132 | if (rid > TPS65217_LDO_4) |
3de56099 RD |
133 | return -EINVAL; |
134 | ||
135 | if (!tps->strobes[rid]) | |
136 | return -EINVAL; | |
137 | ||
138 | return tps65217_set_bits(tps, dev->desc->bypass_reg, | |
139 | dev->desc->bypass_mask, | |
140 | tps->strobes[rid], TPS65217_PROTECT_L1); | |
141 | } | |
142 | ||
fc56911b | 143 | /* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */ |
2c33b50e | 144 | static const struct regulator_ops tps65217_pmic_ops = { |
b4bc9ef6 | 145 | .is_enabled = regulator_is_enabled_regmap, |
fc56911b AL |
146 | .enable = tps65217_pmic_enable, |
147 | .disable = tps65217_pmic_disable, | |
b4bc9ef6 | 148 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
8b22285f | 149 | .set_voltage_sel = tps65217_pmic_set_voltage_sel, |
6290d606 AL |
150 | .list_voltage = regulator_list_voltage_linear_range, |
151 | .map_voltage = regulator_map_voltage_linear_range, | |
3de56099 RD |
152 | .set_suspend_enable = tps65217_pmic_set_suspend_enable, |
153 | .set_suspend_disable = tps65217_pmic_set_suspend_disable, | |
a493077f AC |
154 | }; |
155 | ||
156 | /* Operations permitted on LDO1 */ | |
2c33b50e | 157 | static const struct regulator_ops tps65217_pmic_ldo1_ops = { |
b4bc9ef6 | 158 | .is_enabled = regulator_is_enabled_regmap, |
fc56911b AL |
159 | .enable = tps65217_pmic_enable, |
160 | .disable = tps65217_pmic_disable, | |
b4bc9ef6 | 161 | .get_voltage_sel = regulator_get_voltage_sel_regmap, |
8b22285f | 162 | .set_voltage_sel = tps65217_pmic_set_voltage_sel, |
d172f319 | 163 | .list_voltage = regulator_list_voltage_table, |
5957ae1f | 164 | .map_voltage = regulator_map_voltage_ascend, |
3de56099 RD |
165 | .set_suspend_enable = tps65217_pmic_set_suspend_enable, |
166 | .set_suspend_disable = tps65217_pmic_set_suspend_disable, | |
a493077f AC |
167 | }; |
168 | ||
78637a3d | 169 | static const struct regulator_desc regulators[] = { |
7d42a7f2 MB |
170 | TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, "dcdc1", |
171 | tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC1, | |
172 | TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC1_EN, | |
b4c2e158 MA |
173 | NULL, tps65217_uv1_ranges, |
174 | ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ1, | |
3de56099 | 175 | TPS65217_SEQ1_DC1_SEQ_MASK), |
7d42a7f2 MB |
176 | TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, "dcdc2", |
177 | tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC2, | |
178 | TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC2_EN, | |
179 | NULL, tps65217_uv1_ranges, | |
3de56099 RD |
180 | ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ1, |
181 | TPS65217_SEQ1_DC2_SEQ_MASK), | |
7d42a7f2 MB |
182 | TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, "dcdc3", |
183 | tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC3, | |
184 | TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC3_EN, | |
b4c2e158 MA |
185 | NULL, tps65217_uv1_ranges, |
186 | ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ2, | |
3de56099 | 187 | TPS65217_SEQ2_DC3_SEQ_MASK), |
7d42a7f2 MB |
188 | TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, "ldo1", |
189 | tps65217_pmic_ldo1_ops, 16, TPS65217_REG_DEFLDO1, | |
190 | TPS65217_DEFLDO1_LDO1_MASK, TPS65217_ENABLE_LDO1_EN, | |
3de56099 RD |
191 | LDO1_VSEL_table, NULL, 0, TPS65217_REG_SEQ2, |
192 | TPS65217_SEQ2_LDO1_SEQ_MASK), | |
7d42a7f2 MB |
193 | TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, "ldo2", tps65217_pmic_ops, |
194 | 64, TPS65217_REG_DEFLDO2, | |
195 | TPS65217_DEFLDO2_LDO2_MASK, TPS65217_ENABLE_LDO2_EN, | |
196 | NULL, tps65217_uv1_ranges, | |
3de56099 RD |
197 | ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ3, |
198 | TPS65217_SEQ3_LDO2_SEQ_MASK), | |
7d42a7f2 MB |
199 | TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, "ldo3", tps65217_pmic_ops, |
200 | 32, TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK, | |
d172f319 | 201 | TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN, |
6290d606 | 202 | NULL, tps65217_uv2_ranges, |
3de56099 RD |
203 | ARRAY_SIZE(tps65217_uv2_ranges), TPS65217_REG_SEQ3, |
204 | TPS65217_SEQ3_LDO3_SEQ_MASK), | |
7d42a7f2 MB |
205 | TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, "ldo4", tps65217_pmic_ops, |
206 | 32, TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK, | |
d172f319 | 207 | TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN, |
6290d606 | 208 | NULL, tps65217_uv2_ranges, |
3de56099 RD |
209 | ARRAY_SIZE(tps65217_uv2_ranges), TPS65217_REG_SEQ4, |
210 | TPS65217_SEQ4_LDO4_SEQ_MASK), | |
a493077f AC |
211 | }; |
212 | ||
a5023574 | 213 | static int tps65217_regulator_probe(struct platform_device *pdev) |
a493077f | 214 | { |
1922b0f2 AC |
215 | struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent); |
216 | struct tps65217_board *pdata = dev_get_platdata(tps->dev); | |
a493077f | 217 | struct regulator_dev *rdev; |
c172708d | 218 | struct regulator_config config = { }; |
3de56099 RD |
219 | int i, ret; |
220 | unsigned int val; | |
a493077f | 221 | |
3de56099 | 222 | /* Allocate memory for strobes */ |
a86854d0 KC |
223 | tps->strobes = devm_kcalloc(&pdev->dev, |
224 | TPS65217_NUM_REGULATOR, sizeof(u8), | |
225 | GFP_KERNEL); | |
4f919ca2 AV |
226 | if (!tps->strobes) |
227 | return -ENOMEM; | |
3de56099 | 228 | |
1922b0f2 | 229 | platform_set_drvdata(pdev, tps); |
a493077f | 230 | |
1922b0f2 | 231 | for (i = 0; i < TPS65217_NUM_REGULATOR; i++) { |
1922b0f2 | 232 | /* Register the regulators */ |
1922b0f2 | 233 | config.dev = tps->dev; |
81baf9fe MB |
234 | if (pdata) |
235 | config.init_data = pdata->tps65217_init_data[i]; | |
1922b0f2 AC |
236 | config.driver_data = tps; |
237 | config.regmap = tps->regmap; | |
1922b0f2 | 238 | |
4aac198d SK |
239 | rdev = devm_regulator_register(&pdev->dev, ®ulators[i], |
240 | &config); | |
1922b0f2 AC |
241 | if (IS_ERR(rdev)) { |
242 | dev_err(tps->dev, "failed to register %s regulator\n", | |
243 | pdev->name); | |
4aac198d | 244 | return PTR_ERR(rdev); |
1922b0f2 | 245 | } |
3de56099 RD |
246 | |
247 | /* Store default strobe info */ | |
248 | ret = tps65217_reg_read(tps, regulators[i].bypass_reg, &val); | |
44455a6d LJ |
249 | if (ret) |
250 | return ret; | |
251 | ||
3de56099 | 252 | tps->strobes[i] = val & regulators[i].bypass_mask; |
1922b0f2 | 253 | } |
7d42a7f2 | 254 | |
a493077f | 255 | return 0; |
a493077f AC |
256 | } |
257 | ||
258 | static struct platform_driver tps65217_regulator_driver = { | |
259 | .driver = { | |
260 | .name = "tps65217-pmic", | |
261 | }, | |
262 | .probe = tps65217_regulator_probe, | |
a493077f AC |
263 | }; |
264 | ||
265 | static int __init tps65217_regulator_init(void) | |
266 | { | |
267 | return platform_driver_register(&tps65217_regulator_driver); | |
268 | } | |
269 | subsys_initcall(tps65217_regulator_init); | |
270 | ||
271 | static void __exit tps65217_regulator_exit(void) | |
272 | { | |
273 | platform_driver_unregister(&tps65217_regulator_driver); | |
274 | } | |
275 | module_exit(tps65217_regulator_exit); | |
276 | ||
a493077f AC |
277 | MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>"); |
278 | MODULE_DESCRIPTION("TPS65217 voltage regulator driver"); | |
279 | MODULE_ALIAS("platform:tps65217-pmic"); | |
280 | MODULE_LICENSE("GPL v2"); |