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selftests/bpf: Add a test case for loading BPF_SK_SKB_VERDICT
[linux-2.6-block.git] / drivers / regulator / tps65217-regulator.c
CommitLineData
a493077f
AC		 1/*
2 * tps65217-regulator.c
3 *
4 * Regulator driver for TPS65217 PMIC
5 *
2ca76b3e 6 * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
a493077f
AC		 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
13 * kind, whether express or implied; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License 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
1922b0f2 25#include <linux/regulator/of_regulator.h>
a493077f
AC		 26#include <linux/regulator/driver.h>
27#include <linux/regulator/machine.h>
28#include <linux/mfd/tps65217.h>
29
7d42a7f2 30#define TPS65217_REGULATOR(_name, _id, _of_match, _ops, _n, _vr, _vm, _em, \
3de56099 31 _t, _lr, _nlr, _sr, _sm) \
a493077f
AC		 32 { \
33 .name = _name, \
34 .id = _id, \
7d42a7f2
MB		 35 .of_match = of_match_ptr(_of_match), \
36 .regulators_node= of_match_ptr("regulators"), \
a493077f
AC		 37 .ops = &_ops, \
38 .n_voltages = _n, \
39 .type = REGULATOR_VOLTAGE, \
40 .owner = THIS_MODULE, \
b4bc9ef6
AL		 41 .vsel_reg = _vr, \
42 .vsel_mask = _vm, \
43 .enable_reg = TPS65217_REG_ENABLE, \
44 .enable_mask = _em, \
d172f319 45 .volt_table = _t, \
6290d606
AL		 46 .linear_ranges = _lr, \
47 .n_linear_ranges = _nlr, \
3de56099
RD		 48 .bypass_reg = _sr, \
49 .bypass_mask = _sm, \
a493077f
AC		 50 } \
51
d172f319 52static const unsigned int LDO1_VSEL_table[] = {
a493077f
AC		 53 1000000, 1100000, 1200000, 1250000,
54 1300000, 1350000, 1400000, 1500000,
55 1600000, 1800000, 2500000, 2750000,
56 2800000, 3000000, 3100000, 3300000,
57};
58
60ab7f41 59static const struct linear_range tps65217_uv1_ranges[] = {
8828bae4 60 REGULATOR_LINEAR_RANGE(900000, 0, 24, 25000),
689b9e02 61 REGULATOR_LINEAR_RANGE(1550000, 25, 52, 50000),
8828bae4 62 REGULATOR_LINEAR_RANGE(3000000, 53, 55, 100000),
0b5e200c 63 REGULATOR_LINEAR_RANGE(3300000, 56, 63, 0),
6290d606 64};
a493077f 65
60ab7f41 66static const struct linear_range tps65217_uv2_ranges[] = {
8828bae4
AL		 67 REGULATOR_LINEAR_RANGE(1500000, 0, 8, 50000),
68 REGULATOR_LINEAR_RANGE(2000000, 9, 13, 100000),
69 REGULATOR_LINEAR_RANGE(2450000, 14, 31, 50000),
a493077f
AC		 70};
71
fc56911b 72static int tps65217_pmic_enable(struct regulator_dev *dev)
a493077f 73{
a493077f 74 struct tps65217 *tps = rdev_get_drvdata(dev);
6bdaaf0e 75 int rid = rdev_get_id(dev);
a493077f 76
fc56911b 77 if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
a493077f
AC		 78 return -EINVAL;
79
80 /* Enable the regulator and password protection is level 1 */
81 return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
b4bc9ef6
AL		 82 dev->desc->enable_mask, dev->desc->enable_mask,
83 TPS65217_PROTECT_L1);
a493077f
AC		 84}
85
fc56911b 86static int tps65217_pmic_disable(struct regulator_dev *dev)
a493077f
AC		 87{
88 struct tps65217 *tps = rdev_get_drvdata(dev);
6bdaaf0e 89 int rid = rdev_get_id(dev);
a493077f 90
fc56911b 91 if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
a493077f
AC		 92 return -EINVAL;
93
94 /* Disable the regulator and password protection is level 1 */
95 return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
b4bc9ef6 96 dev->desc->enable_mask, TPS65217_PROTECT_L1);
a493077f
AC		 97}
98
8b22285f
AL		 99static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev,
100 unsigned selector)
a493077f 101{
8b22285f 102 int ret;
a493077f 103 struct tps65217 *tps = rdev_get_drvdata(dev);
8b22285f 104 unsigned int rid = rdev_get_id(dev);
a493077f 105
8b22285f 106 /* Set the voltage based on vsel value and write protect level is 2 */
b4bc9ef6 107 ret = tps65217_set_bits(tps, dev->desc->vsel_reg, dev->desc->vsel_mask,
8b22285f 108 selector, TPS65217_PROTECT_L2);
a493077f 109
8b22285f
AL		 110 /* Set GO bit for DCDCx to initiate voltage transistion */
111 switch (rid) {
112 case TPS65217_DCDC_1 ... TPS65217_DCDC_3:
113 ret = tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
114 TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
115 TPS65217_PROTECT_L2);
116 break;
117 }
a493077f 118
8b22285f 119 return ret;
a493077f
AC		 120}
121
3de56099
RD		 122static int tps65217_pmic_set_suspend_enable(struct regulator_dev *dev)
123{
124 struct tps65217 *tps = rdev_get_drvdata(dev);
125 unsigned int rid = rdev_get_id(dev);
126
f10a5e49 127 if (rid > TPS65217_LDO_4)
3de56099
RD		 128 return -EINVAL;
129
130 return tps65217_clear_bits(tps, dev->desc->bypass_reg,
131 dev->desc->bypass_mask,
132 TPS65217_PROTECT_L1);
133}
134
135static int tps65217_pmic_set_suspend_disable(struct regulator_dev *dev)
136{
137 struct tps65217 *tps = rdev_get_drvdata(dev);
138 unsigned int rid = rdev_get_id(dev);
139
f10a5e49 140 if (rid > TPS65217_LDO_4)
3de56099
RD		 141 return -EINVAL;
142
143 if (!tps->strobes[rid])
144 return -EINVAL;
145
146 return tps65217_set_bits(tps, dev->desc->bypass_reg,
147 dev->desc->bypass_mask,
148 tps->strobes[rid], TPS65217_PROTECT_L1);
149}
150
fc56911b 151/* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
2c33b50e 152static const struct regulator_ops tps65217_pmic_ops = {
b4bc9ef6 153 .is_enabled = regulator_is_enabled_regmap,
fc56911b
AL		 154 .enable = tps65217_pmic_enable,
155 .disable = tps65217_pmic_disable,
b4bc9ef6 156 .get_voltage_sel = regulator_get_voltage_sel_regmap,
8b22285f 157 .set_voltage_sel = tps65217_pmic_set_voltage_sel,
6290d606
AL		 158 .list_voltage = regulator_list_voltage_linear_range,
159 .map_voltage = regulator_map_voltage_linear_range,
3de56099
RD		 160 .set_suspend_enable = tps65217_pmic_set_suspend_enable,
161 .set_suspend_disable = tps65217_pmic_set_suspend_disable,
a493077f
AC		 162};
163
164/* Operations permitted on LDO1 */
2c33b50e 165static const struct regulator_ops tps65217_pmic_ldo1_ops = {
b4bc9ef6 166 .is_enabled = regulator_is_enabled_regmap,
fc56911b
AL		 167 .enable = tps65217_pmic_enable,
168 .disable = tps65217_pmic_disable,
b4bc9ef6 169 .get_voltage_sel = regulator_get_voltage_sel_regmap,
8b22285f 170 .set_voltage_sel = tps65217_pmic_set_voltage_sel,
d172f319 171 .list_voltage = regulator_list_voltage_table,
5957ae1f 172 .map_voltage = regulator_map_voltage_ascend,
3de56099
RD		 173 .set_suspend_enable = tps65217_pmic_set_suspend_enable,
174 .set_suspend_disable = tps65217_pmic_set_suspend_disable,
a493077f
AC		 175};
176
78637a3d 177static const struct regulator_desc regulators[] = {
7d42a7f2
MB		 178 TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, "dcdc1",
179 tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC1,
180 TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC1_EN,
b4c2e158
MA		 181 NULL, tps65217_uv1_ranges,
182 ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ1,
3de56099 183 TPS65217_SEQ1_DC1_SEQ_MASK),
7d42a7f2
MB		 184 TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, "dcdc2",
185 tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC2,
186 TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC2_EN,
187 NULL, tps65217_uv1_ranges,
3de56099
RD		 188 ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ1,
189 TPS65217_SEQ1_DC2_SEQ_MASK),
7d42a7f2
MB		 190 TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, "dcdc3",
191 tps65217_pmic_ops, 64, TPS65217_REG_DEFDCDC3,
192 TPS65217_DEFDCDCX_DCDC_MASK, TPS65217_ENABLE_DC3_EN,
b4c2e158
MA		 193 NULL, tps65217_uv1_ranges,
194 ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ2,
3de56099 195 TPS65217_SEQ2_DC3_SEQ_MASK),
7d42a7f2
MB		 196 TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, "ldo1",
197 tps65217_pmic_ldo1_ops, 16, TPS65217_REG_DEFLDO1,
198 TPS65217_DEFLDO1_LDO1_MASK, TPS65217_ENABLE_LDO1_EN,
3de56099
RD		 199 LDO1_VSEL_table, NULL, 0, TPS65217_REG_SEQ2,
200 TPS65217_SEQ2_LDO1_SEQ_MASK),
7d42a7f2
MB		 201 TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, "ldo2", tps65217_pmic_ops,
202 64, TPS65217_REG_DEFLDO2,
203 TPS65217_DEFLDO2_LDO2_MASK, TPS65217_ENABLE_LDO2_EN,
204 NULL, tps65217_uv1_ranges,
3de56099
RD		 205 ARRAY_SIZE(tps65217_uv1_ranges), TPS65217_REG_SEQ3,
206 TPS65217_SEQ3_LDO2_SEQ_MASK),
7d42a7f2
MB		 207 TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, "ldo3", tps65217_pmic_ops,
208 32, TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK,
d172f319 209 TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN,
6290d606 210 NULL, tps65217_uv2_ranges,
3de56099
RD		 211 ARRAY_SIZE(tps65217_uv2_ranges), TPS65217_REG_SEQ3,
212 TPS65217_SEQ3_LDO3_SEQ_MASK),
7d42a7f2
MB		 213 TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, "ldo4", tps65217_pmic_ops,
214 32, TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK,
d172f319 215 TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN,
6290d606 216 NULL, tps65217_uv2_ranges,
3de56099
RD		 217 ARRAY_SIZE(tps65217_uv2_ranges), TPS65217_REG_SEQ4,
218 TPS65217_SEQ4_LDO4_SEQ_MASK),
a493077f
AC		 219};
220
a5023574 221static int tps65217_regulator_probe(struct platform_device *pdev)
a493077f 222{
1922b0f2
AC		 223 struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
224 struct tps65217_board *pdata = dev_get_platdata(tps->dev);
a493077f 225 struct regulator_dev *rdev;
c172708d 226 struct regulator_config config = { };
3de56099
RD		 227 int i, ret;
228 unsigned int val;
a493077f 229
3de56099 230 /* Allocate memory for strobes */
a86854d0
KC		 231 tps->strobes = devm_kcalloc(&pdev->dev,
232 TPS65217_NUM_REGULATOR, sizeof(u8),
233 GFP_KERNEL);
4f919ca2
AV		 234 if (!tps->strobes)
235 return -ENOMEM;
3de56099 236
1922b0f2 237 platform_set_drvdata(pdev, tps);
a493077f 238
1922b0f2 239 for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
1922b0f2 240 /* Register the regulators */
1922b0f2 241 config.dev = tps->dev;
81baf9fe
MB		 242 if (pdata)
243 config.init_data = pdata->tps65217_init_data[i];
1922b0f2
AC		 244 config.driver_data = tps;
245 config.regmap = tps->regmap;
1922b0f2 246
4aac198d
SK		 247 rdev = devm_regulator_register(&pdev->dev, &regulators[i],
248 &config);
1922b0f2
AC		 249 if (IS_ERR(rdev)) {
250 dev_err(tps->dev, "failed to register %s regulator\n",
251 pdev->name);
4aac198d 252 return PTR_ERR(rdev);
1922b0f2 253 }
3de56099
RD		 254
255 /* Store default strobe info */
256 ret = tps65217_reg_read(tps, regulators[i].bypass_reg, &val);
44455a6d
LJ		 257 if (ret)
258 return ret;
259
3de56099 260 tps->strobes[i] = val & regulators[i].bypass_mask;
1922b0f2 261 }
7d42a7f2 262
a493077f 263 return 0;
a493077f
AC		 264}
265
266static struct platform_driver tps65217_regulator_driver = {
267 .driver = {
268 .name = "tps65217-pmic",
269 },
270 .probe = tps65217_regulator_probe,
a493077f
AC		 271};
272
273static int __init tps65217_regulator_init(void)
274{
275 return platform_driver_register(&tps65217_regulator_driver);
276}
277subsys_initcall(tps65217_regulator_init);
278
279static void __exit tps65217_regulator_exit(void)
280{
281 platform_driver_unregister(&tps65217_regulator_driver);
282}
283module_exit(tps65217_regulator_exit);
284
a493077f
AC		 285MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
286MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
287MODULE_ALIAS("platform:tps65217-pmic");
288MODULE_LICENSE("GPL v2");
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