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perf python: Do not force closing original perf descriptor in evlist.get_pollfd()
[linux/fpc-iii.git] / drivers / regulator / axp20x-regulator.c
bloba3734039a86a7897c35d69f4f536dc94f8f27b29
1 /*
2 * AXP20x regulators driver.
3 *
4 * Copyright (C) 2013 Carlo Caione <carlo@caione.org>
5 *
6 * This file is subject to the terms and conditions of the GNU General
7 * Public License. See the file "COPYING" in the main directory of this
8 * archive for more details.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16 #include <linux/err.h>
17 #include <linux/init.h>
18 #include <linux/module.h>
19 #include <linux/of.h>
20 #include <linux/of_device.h>
21 #include <linux/platform_device.h>
22 #include <linux/regmap.h>
23 #include <linux/mfd/axp20x.h>
24 #include <linux/regulator/driver.h>
25 #include <linux/regulator/of_regulator.h>
26
27 #define AXP20X_IO_ENABLED 0x03
28 #define AXP20X_IO_DISABLED 0x07
29
30 #define AXP22X_IO_ENABLED 0x03
31 #define AXP22X_IO_DISABLED 0x04
32
33 #define AXP20X_WORKMODE_DCDC2_MASK BIT(2)
34 #define AXP20X_WORKMODE_DCDC3_MASK BIT(1)
35 #define AXP22X_WORKMODE_DCDCX_MASK(x) BIT(x)
36
37 #define AXP20X_FREQ_DCDC_MASK 0x0f
38
39 #define AXP22X_MISC_N_VBUSEN_FUNC BIT(4)
40
41 #define AXP_DESC_IO(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
42 _vmask, _ereg, _emask, _enable_val, _disable_val) \
43 [_family##_##_id] = { \
44 .name = (_match), \
45 .supply_name = (_supply), \
46 .of_match = of_match_ptr(_match), \
47 .regulators_node = of_match_ptr("regulators"), \
48 .type = REGULATOR_VOLTAGE, \
49 .id = _family##_##_id, \
50 .n_voltages = (((_max) - (_min)) / (_step) + 1), \
51 .owner = THIS_MODULE, \
52 .min_uV = (_min) * 1000, \
53 .uV_step = (_step) * 1000, \
54 .vsel_reg = (_vreg), \
55 .vsel_mask = (_vmask), \
56 .enable_reg = (_ereg), \
57 .enable_mask = (_emask), \
58 .enable_val = (_enable_val), \
59 .disable_val = (_disable_val), \
60 .ops = &axp20x_ops, \
61 }
62
63 #define AXP_DESC(_family, _id, _match, _supply, _min, _max, _step, _vreg, \
64 _vmask, _ereg, _emask) \
65 [_family##_##_id] = { \
66 .name = (_match), \
67 .supply_name = (_supply), \
68 .of_match = of_match_ptr(_match), \
69 .regulators_node = of_match_ptr("regulators"), \
70 .type = REGULATOR_VOLTAGE, \
71 .id = _family##_##_id, \
72 .n_voltages = (((_max) - (_min)) / (_step) + 1), \
73 .owner = THIS_MODULE, \
74 .min_uV = (_min) * 1000, \
75 .uV_step = (_step) * 1000, \
76 .vsel_reg = (_vreg), \
77 .vsel_mask = (_vmask), \
78 .enable_reg = (_ereg), \
79 .enable_mask = (_emask), \
80 .ops = &axp20x_ops, \
81 }
82
83 #define AXP_DESC_SW(_family, _id, _match, _supply, _ereg, _emask) \
84 [_family##_##_id] = { \
85 .name = (_match), \
86 .supply_name = (_supply), \
87 .of_match = of_match_ptr(_match), \
88 .regulators_node = of_match_ptr("regulators"), \
89 .type = REGULATOR_VOLTAGE, \
90 .id = _family##_##_id, \
91 .owner = THIS_MODULE, \
92 .enable_reg = (_ereg), \
93 .enable_mask = (_emask), \
94 .ops = &axp20x_ops_sw, \
95 }
96
97 #define AXP_DESC_FIXED(_family, _id, _match, _supply, _volt) \
98 [_family##_##_id] = { \
99 .name = (_match), \
100 .supply_name = (_supply), \
101 .of_match = of_match_ptr(_match), \
102 .regulators_node = of_match_ptr("regulators"), \
103 .type = REGULATOR_VOLTAGE, \
104 .id = _family##_##_id, \
105 .n_voltages = 1, \
106 .owner = THIS_MODULE, \
107 .min_uV = (_volt) * 1000, \
108 .ops = &axp20x_ops_fixed \
109 }
110
111 #define AXP_DESC_RANGES(_family, _id, _match, _supply, _ranges, _n_voltages, \
112 _vreg, _vmask, _ereg, _emask) \
113 [_family##_##_id] = { \
114 .name = (_match), \
115 .supply_name = (_supply), \
116 .of_match = of_match_ptr(_match), \
117 .regulators_node = of_match_ptr("regulators"), \
118 .type = REGULATOR_VOLTAGE, \
119 .id = _family##_##_id, \
120 .n_voltages = (_n_voltages), \
121 .owner = THIS_MODULE, \
122 .vsel_reg = (_vreg), \
123 .vsel_mask = (_vmask), \
124 .enable_reg = (_ereg), \
125 .enable_mask = (_emask), \
126 .linear_ranges = (_ranges), \
127 .n_linear_ranges = ARRAY_SIZE(_ranges), \
128 .ops = &axp20x_ops_range, \
129 }
130
131 static const struct regulator_ops axp20x_ops_fixed = {
132 .list_voltage = regulator_list_voltage_linear,
133 };
134
135 static const struct regulator_ops axp20x_ops_range = {
136 .set_voltage_sel = regulator_set_voltage_sel_regmap,
137 .get_voltage_sel = regulator_get_voltage_sel_regmap,
138 .list_voltage = regulator_list_voltage_linear_range,
139 .enable = regulator_enable_regmap,
140 .disable = regulator_disable_regmap,
141 .is_enabled = regulator_is_enabled_regmap,
142 };
143
144 static const struct regulator_ops axp20x_ops = {
145 .set_voltage_sel = regulator_set_voltage_sel_regmap,
146 .get_voltage_sel = regulator_get_voltage_sel_regmap,
147 .list_voltage = regulator_list_voltage_linear,
148 .enable = regulator_enable_regmap,
149 .disable = regulator_disable_regmap,
150 .is_enabled = regulator_is_enabled_regmap,
151 };
152
153 static const struct regulator_ops axp20x_ops_sw = {
154 .enable = regulator_enable_regmap,
155 .disable = regulator_disable_regmap,
156 .is_enabled = regulator_is_enabled_regmap,
157 };
158
159 static const struct regulator_linear_range axp20x_ldo4_ranges[] = {
160 REGULATOR_LINEAR_RANGE(1250000, 0x0, 0x0, 0),
161 REGULATOR_LINEAR_RANGE(1300000, 0x1, 0x8, 100000),
162 REGULATOR_LINEAR_RANGE(2500000, 0x9, 0x9, 0),
163 REGULATOR_LINEAR_RANGE(2700000, 0xa, 0xb, 100000),
164 REGULATOR_LINEAR_RANGE(3000000, 0xc, 0xf, 100000),
165 };
166
167 static const struct regulator_desc axp20x_regulators[] = {
168 AXP_DESC(AXP20X, DCDC2, "dcdc2", "vin2", 700, 2275, 25,
169 AXP20X_DCDC2_V_OUT, 0x3f, AXP20X_PWR_OUT_CTRL, 0x10),
170 AXP_DESC(AXP20X, DCDC3, "dcdc3", "vin3", 700, 3500, 25,
171 AXP20X_DCDC3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x02),
172 AXP_DESC_FIXED(AXP20X, LDO1, "ldo1", "acin", 1300),
173 AXP_DESC(AXP20X, LDO2, "ldo2", "ldo24in", 1800, 3300, 100,
174 AXP20X_LDO24_V_OUT, 0xf0, AXP20X_PWR_OUT_CTRL, 0x04),
175 AXP_DESC(AXP20X, LDO3, "ldo3", "ldo3in", 700, 3500, 25,
176 AXP20X_LDO3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x40),
177 AXP_DESC_RANGES(AXP20X, LDO4, "ldo4", "ldo24in", axp20x_ldo4_ranges,
178 16, AXP20X_LDO24_V_OUT, 0x0f, AXP20X_PWR_OUT_CTRL,
179 0x08),
180 AXP_DESC_IO(AXP20X, LDO5, "ldo5", "ldo5in", 1800, 3300, 100,
181 AXP20X_LDO5_V_OUT, 0xf0, AXP20X_GPIO0_CTRL, 0x07,
182 AXP20X_IO_ENABLED, AXP20X_IO_DISABLED),
183 };
184
185 static const struct regulator_desc axp22x_regulators[] = {
186 AXP_DESC(AXP22X, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
187 AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(1)),
188 AXP_DESC(AXP22X, DCDC2, "dcdc2", "vin2", 600, 1540, 20,
189 AXP22X_DCDC2_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(2)),
190 AXP_DESC(AXP22X, DCDC3, "dcdc3", "vin3", 600, 1860, 20,
191 AXP22X_DCDC3_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)),
192 AXP_DESC(AXP22X, DCDC4, "dcdc4", "vin4", 600, 1540, 20,
193 AXP22X_DCDC4_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(4)),
194 AXP_DESC(AXP22X, DCDC5, "dcdc5", "vin5", 1000, 2550, 50,
195 AXP22X_DCDC5_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(5)),
196 /* secondary switchable output of DCDC1 */
197 AXP_DESC_SW(AXP22X, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2,
198 BIT(7)),
199 /* LDO regulator internally chained to DCDC5 */
200 AXP_DESC(AXP22X, DC5LDO, "dc5ldo", NULL, 700, 1400, 100,
201 AXP22X_DC5LDO_V_OUT, 0x7, AXP22X_PWR_OUT_CTRL1, BIT(0)),
202 AXP_DESC(AXP22X, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
203 AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(6)),
204 AXP_DESC(AXP22X, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
205 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)),
206 AXP_DESC(AXP22X, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
207 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)),
208 AXP_DESC(AXP22X, DLDO1, "dldo1", "dldoin", 700, 3300, 100,
209 AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)),
210 AXP_DESC(AXP22X, DLDO2, "dldo2", "dldoin", 700, 3300, 100,
211 AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(4)),
212 AXP_DESC(AXP22X, DLDO3, "dldo3", "dldoin", 700, 3300, 100,
213 AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
214 AXP_DESC(AXP22X, DLDO4, "dldo4", "dldoin", 700, 3300, 100,
215 AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)),
216 AXP_DESC(AXP22X, ELDO1, "eldo1", "eldoin", 700, 3300, 100,
217 AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
218 AXP_DESC(AXP22X, ELDO2, "eldo2", "eldoin", 700, 3300, 100,
219 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
220 AXP_DESC(AXP22X, ELDO3, "eldo3", "eldoin", 700, 3300, 100,
221 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
222 /* Note the datasheet only guarantees reliable operation up to
223 * 3.3V, this needs to be enforced via dts provided constraints */
224 AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 700, 3800, 100,
225 AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
226 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
227 /* Note the datasheet only guarantees reliable operation up to
228 * 3.3V, this needs to be enforced via dts provided constraints */
229 AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 700, 3800, 100,
230 AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
231 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
232 AXP_DESC_FIXED(AXP22X, RTC_LDO, "rtc_ldo", "ips", 3000),
233 };
234
235 static const struct regulator_desc axp22x_drivevbus_regulator = {
236 .name = "drivevbus",
237 .supply_name = "drivevbus",
238 .of_match = of_match_ptr("drivevbus"),
239 .regulators_node = of_match_ptr("regulators"),
240 .type = REGULATOR_VOLTAGE,
241 .owner = THIS_MODULE,
242 .enable_reg = AXP20X_VBUS_IPSOUT_MGMT,
243 .enable_mask = BIT(2),
244 .ops = &axp20x_ops_sw,
245 };
246
247 /* DCDC ranges shared with AXP813 */
248 static const struct regulator_linear_range axp803_dcdc234_ranges[] = {
249 REGULATOR_LINEAR_RANGE(500000, 0x0, 0x46, 10000),
250 REGULATOR_LINEAR_RANGE(1220000, 0x47, 0x4b, 20000),
251 };
252
253 static const struct regulator_linear_range axp803_dcdc5_ranges[] = {
254 REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 10000),
255 REGULATOR_LINEAR_RANGE(1140000, 0x21, 0x44, 20000),
256 };
257
258 static const struct regulator_linear_range axp803_dcdc6_ranges[] = {
259 REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000),
260 REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000),
261 };
262
263 /* AXP806's CLDO2 and AXP809's DLDO1 shares the same range */
264 static const struct regulator_linear_range axp803_dldo2_ranges[] = {
265 REGULATOR_LINEAR_RANGE(700000, 0x0, 0x1a, 100000),
266 REGULATOR_LINEAR_RANGE(3400000, 0x1b, 0x1f, 200000),
267 };
268
269 static const struct regulator_desc axp803_regulators[] = {
270 AXP_DESC(AXP803, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
271 AXP803_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(0)),
272 AXP_DESC_RANGES(AXP803, DCDC2, "dcdc2", "vin2", axp803_dcdc234_ranges,
273 76, AXP803_DCDC2_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
274 BIT(1)),
275 AXP_DESC_RANGES(AXP803, DCDC3, "dcdc3", "vin3", axp803_dcdc234_ranges,
276 76, AXP803_DCDC3_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
277 BIT(2)),
278 AXP_DESC_RANGES(AXP803, DCDC4, "dcdc4", "vin4", axp803_dcdc234_ranges,
279 76, AXP803_DCDC4_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
280 BIT(3)),
281 AXP_DESC_RANGES(AXP803, DCDC5, "dcdc5", "vin5", axp803_dcdc5_ranges,
282 68, AXP803_DCDC5_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
283 BIT(4)),
284 AXP_DESC_RANGES(AXP803, DCDC6, "dcdc6", "vin6", axp803_dcdc6_ranges,
285 72, AXP803_DCDC6_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
286 BIT(5)),
287 /* secondary switchable output of DCDC1 */
288 AXP_DESC_SW(AXP803, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2,
289 BIT(7)),
290 AXP_DESC(AXP803, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
291 AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(5)),
292 AXP_DESC(AXP803, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
293 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(6)),
294 AXP_DESC(AXP803, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
295 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)),
296 AXP_DESC(AXP803, DLDO1, "dldo1", "dldoin", 700, 3300, 100,
297 AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)),
298 AXP_DESC_RANGES(AXP803, DLDO2, "dldo2", "dldoin", axp803_dldo2_ranges,
299 32, AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
300 BIT(4)),
301 AXP_DESC(AXP803, DLDO3, "dldo3", "dldoin", 700, 3300, 100,
302 AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
303 AXP_DESC(AXP803, DLDO4, "dldo4", "dldoin", 700, 3300, 100,
304 AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)),
305 AXP_DESC(AXP803, ELDO1, "eldo1", "eldoin", 700, 1900, 50,
306 AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
307 AXP_DESC(AXP803, ELDO2, "eldo2", "eldoin", 700, 1900, 50,
308 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
309 AXP_DESC(AXP803, ELDO3, "eldo3", "eldoin", 700, 1900, 50,
310 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
311 AXP_DESC(AXP803, FLDO1, "fldo1", "fldoin", 700, 1450, 50,
312 AXP803_FLDO1_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(2)),
313 AXP_DESC(AXP803, FLDO2, "fldo2", "fldoin", 700, 1450, 50,
314 AXP803_FLDO2_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(3)),
315 AXP_DESC_IO(AXP803, LDO_IO0, "ldo-io0", "ips", 700, 3300, 100,
316 AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
317 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
318 AXP_DESC_IO(AXP803, LDO_IO1, "ldo-io1", "ips", 700, 3300, 100,
319 AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
320 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
321 AXP_DESC_FIXED(AXP803, RTC_LDO, "rtc-ldo", "ips", 3000),
322 };
323
324 static const struct regulator_linear_range axp806_dcdca_ranges[] = {
325 REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000),
326 REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000),
327 };
328
329 static const struct regulator_linear_range axp806_dcdcd_ranges[] = {
330 REGULATOR_LINEAR_RANGE(600000, 0x0, 0x2d, 20000),
331 REGULATOR_LINEAR_RANGE(1600000, 0x2e, 0x3f, 100000),
332 };
333
334 static const struct regulator_desc axp806_regulators[] = {
335 AXP_DESC_RANGES(AXP806, DCDCA, "dcdca", "vina", axp806_dcdca_ranges,
336 72, AXP806_DCDCA_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1,
337 BIT(0)),
338 AXP_DESC(AXP806, DCDCB, "dcdcb", "vinb", 1000, 2550, 50,
339 AXP806_DCDCB_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(1)),
340 AXP_DESC_RANGES(AXP806, DCDCC, "dcdcc", "vinc", axp806_dcdca_ranges,
341 72, AXP806_DCDCC_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1,
342 BIT(2)),
343 AXP_DESC_RANGES(AXP806, DCDCD, "dcdcd", "vind", axp806_dcdcd_ranges,
344 64, AXP806_DCDCD_V_CTRL, 0x3f, AXP806_PWR_OUT_CTRL1,
345 BIT(3)),
346 AXP_DESC(AXP806, DCDCE, "dcdce", "vine", 1100, 3400, 100,
347 AXP806_DCDCE_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(4)),
348 AXP_DESC(AXP806, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
349 AXP806_ALDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(5)),
350 AXP_DESC(AXP806, ALDO2, "aldo2", "aldoin", 700, 3400, 100,
351 AXP806_ALDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(6)),
352 AXP_DESC(AXP806, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
353 AXP806_ALDO3_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(7)),
354 AXP_DESC(AXP806, BLDO1, "bldo1", "bldoin", 700, 1900, 100,
355 AXP806_BLDO1_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(0)),
356 AXP_DESC(AXP806, BLDO2, "bldo2", "bldoin", 700, 1900, 100,
357 AXP806_BLDO2_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(1)),
358 AXP_DESC(AXP806, BLDO3, "bldo3", "bldoin", 700, 1900, 100,
359 AXP806_BLDO3_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(2)),
360 AXP_DESC(AXP806, BLDO4, "bldo4", "bldoin", 700, 1900, 100,
361 AXP806_BLDO4_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(3)),
362 AXP_DESC(AXP806, CLDO1, "cldo1", "cldoin", 700, 3300, 100,
363 AXP806_CLDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(4)),
364 AXP_DESC_RANGES(AXP806, CLDO2, "cldo2", "cldoin", axp803_dldo2_ranges,
365 32, AXP806_CLDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2,
366 BIT(5)),
367 AXP_DESC(AXP806, CLDO3, "cldo3", "cldoin", 700, 3300, 100,
368 AXP806_CLDO3_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(6)),
369 AXP_DESC_SW(AXP806, SW, "sw", "swin", AXP806_PWR_OUT_CTRL2, BIT(7)),
370 };
371
372 static const struct regulator_linear_range axp809_dcdc4_ranges[] = {
373 REGULATOR_LINEAR_RANGE(600000, 0x0, 0x2f, 20000),
374 REGULATOR_LINEAR_RANGE(1800000, 0x30, 0x38, 100000),
375 };
376
377 static const struct regulator_desc axp809_regulators[] = {
378 AXP_DESC(AXP809, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
379 AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(1)),
380 AXP_DESC(AXP809, DCDC2, "dcdc2", "vin2", 600, 1540, 20,
381 AXP22X_DCDC2_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(2)),
382 AXP_DESC(AXP809, DCDC3, "dcdc3", "vin3", 600, 1860, 20,
383 AXP22X_DCDC3_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)),
384 AXP_DESC_RANGES(AXP809, DCDC4, "dcdc4", "vin4", axp809_dcdc4_ranges,
385 57, AXP22X_DCDC4_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1,
386 BIT(4)),
387 AXP_DESC(AXP809, DCDC5, "dcdc5", "vin5", 1000, 2550, 50,
388 AXP22X_DCDC5_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(5)),
389 /* secondary switchable output of DCDC1 */
390 AXP_DESC_SW(AXP809, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2,
391 BIT(7)),
392 /* LDO regulator internally chained to DCDC5 */
393 AXP_DESC(AXP809, DC5LDO, "dc5ldo", NULL, 700, 1400, 100,
394 AXP22X_DC5LDO_V_OUT, 0x7, AXP22X_PWR_OUT_CTRL1, BIT(0)),
395 AXP_DESC(AXP809, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
396 AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(6)),
397 AXP_DESC(AXP809, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
398 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)),
399 AXP_DESC(AXP809, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
400 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
401 AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp803_dldo2_ranges,
402 32, AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
403 BIT(3)),
404 AXP_DESC(AXP809, DLDO2, "dldo2", "dldoin", 700, 3300, 100,
405 AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(4)),
406 AXP_DESC(AXP809, ELDO1, "eldo1", "eldoin", 700, 3300, 100,
407 AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
408 AXP_DESC(AXP809, ELDO2, "eldo2", "eldoin", 700, 3300, 100,
409 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
410 AXP_DESC(AXP809, ELDO3, "eldo3", "eldoin", 700, 3300, 100,
411 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
412 /*
413 * Note the datasheet only guarantees reliable operation up to
414 * 3.3V, this needs to be enforced via dts provided constraints
415 */
416 AXP_DESC_IO(AXP809, LDO_IO0, "ldo_io0", "ips", 700, 3800, 100,
417 AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
418 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
419 /*
420 * Note the datasheet only guarantees reliable operation up to
421 * 3.3V, this needs to be enforced via dts provided constraints
422 */
423 AXP_DESC_IO(AXP809, LDO_IO1, "ldo_io1", "ips", 700, 3800, 100,
424 AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
425 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
426 AXP_DESC_FIXED(AXP809, RTC_LDO, "rtc_ldo", "ips", 1800),
427 AXP_DESC_SW(AXP809, SW, "sw", "swin", AXP22X_PWR_OUT_CTRL2, BIT(6)),
428 };
429
430 static const struct regulator_desc axp813_regulators[] = {
431 AXP_DESC(AXP813, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
432 AXP803_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(0)),
433 AXP_DESC_RANGES(AXP813, DCDC2, "dcdc2", "vin2", axp803_dcdc234_ranges,
434 76, AXP803_DCDC2_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
435 BIT(1)),
436 AXP_DESC_RANGES(AXP813, DCDC3, "dcdc3", "vin3", axp803_dcdc234_ranges,
437 76, AXP803_DCDC3_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
438 BIT(2)),
439 AXP_DESC_RANGES(AXP813, DCDC4, "dcdc4", "vin4", axp803_dcdc234_ranges,
440 76, AXP803_DCDC4_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
441 BIT(3)),
442 AXP_DESC_RANGES(AXP813, DCDC5, "dcdc5", "vin5", axp803_dcdc5_ranges,
443 68, AXP803_DCDC5_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
444 BIT(4)),
445 AXP_DESC_RANGES(AXP813, DCDC6, "dcdc6", "vin6", axp803_dcdc6_ranges,
446 72, AXP803_DCDC6_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
447 BIT(5)),
448 AXP_DESC_RANGES(AXP813, DCDC7, "dcdc7", "vin7", axp803_dcdc6_ranges,
449 72, AXP813_DCDC7_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
450 BIT(6)),
451 AXP_DESC(AXP813, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
452 AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(5)),
453 AXP_DESC(AXP813, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
454 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(6)),
455 AXP_DESC(AXP813, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
456 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)),
457 AXP_DESC(AXP813, DLDO1, "dldo1", "dldoin", 700, 3300, 100,
458 AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)),
459 AXP_DESC_RANGES(AXP813, DLDO2, "dldo2", "dldoin", axp803_dldo2_ranges,
460 32, AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
461 BIT(4)),
462 AXP_DESC(AXP813, DLDO3, "dldo3", "dldoin", 700, 3300, 100,
463 AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
464 AXP_DESC(AXP813, DLDO4, "dldo4", "dldoin", 700, 3300, 100,
465 AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)),
466 AXP_DESC(AXP813, ELDO1, "eldo1", "eldoin", 700, 1900, 50,
467 AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
468 AXP_DESC(AXP813, ELDO2, "eldo2", "eldoin", 700, 1900, 50,
469 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
470 AXP_DESC(AXP813, ELDO3, "eldo3", "eldoin", 700, 1900, 50,
471 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
472 /* to do / check ... */
473 AXP_DESC(AXP813, FLDO1, "fldo1", "fldoin", 700, 1450, 50,
474 AXP803_FLDO1_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(2)),
475 AXP_DESC(AXP813, FLDO2, "fldo2", "fldoin", 700, 1450, 50,
476 AXP803_FLDO2_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(3)),
477 /*
478 * TODO: FLDO3 = {DCDC5, FLDOIN} / 2
479 *
480 * This means FLDO3 effectively switches supplies at runtime,
481 * something the regulator subsystem does not support.
482 */
483 AXP_DESC_FIXED(AXP813, RTC_LDO, "rtc-ldo", "ips", 1800),
484 AXP_DESC_IO(AXP813, LDO_IO0, "ldo-io0", "ips", 700, 3300, 100,
485 AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
486 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
487 AXP_DESC_IO(AXP813, LDO_IO1, "ldo-io1", "ips", 700, 3300, 100,
488 AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
489 AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
490 AXP_DESC_SW(AXP813, SW, "sw", "swin", AXP22X_PWR_OUT_CTRL2, BIT(7)),
491 };
492
493 static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
494 {
495 struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
496 unsigned int reg = AXP20X_DCDC_FREQ;
497 u32 min, max, def, step;
498
499 switch (axp20x->variant) {
500 case AXP202_ID:
501 case AXP209_ID:
502 min = 750;
503 max = 1875;
504 def = 1500;
505 step = 75;
506 break;
507 case AXP803_ID:
508 case AXP813_ID:
509 /*
510 * AXP803/AXP813 DCDC work frequency setting has the same
511 * range and step as AXP22X, but at a different register.
512 * (See include/linux/mfd/axp20x.h)
513 */
514 reg = AXP803_DCDC_FREQ_CTRL;
515 /* Fall through to the check below.*/
516 case AXP806_ID:
517 /*
518 * AXP806 also have DCDC work frequency setting register at a
519 * different position.
520 */
521 if (axp20x->variant == AXP806_ID)
522 reg = AXP806_DCDC_FREQ_CTRL;
523 /* Fall through */
524 case AXP221_ID:
525 case AXP223_ID:
526 case AXP809_ID:
527 min = 1800;
528 max = 4050;
529 def = 3000;
530 step = 150;
531 break;
532 default:
533 dev_err(&pdev->dev,
534 "Setting DCDC frequency for unsupported AXP variant\n");
535 return -EINVAL;
536 }
537
538 if (dcdcfreq == 0)
539 dcdcfreq = def;
540
541 if (dcdcfreq < min) {
542 dcdcfreq = min;
543 dev_warn(&pdev->dev, "DCDC frequency too low. Set to %ukHz\n",
544 min);
545 }
546
547 if (dcdcfreq > max) {
548 dcdcfreq = max;
549 dev_warn(&pdev->dev, "DCDC frequency too high. Set to %ukHz\n",
550 max);
551 }
552
553 dcdcfreq = (dcdcfreq - min) / step;
554
555 return regmap_update_bits(axp20x->regmap, reg,
556 AXP20X_FREQ_DCDC_MASK, dcdcfreq);
557 }
558
559 static int axp20x_regulator_parse_dt(struct platform_device *pdev)
560 {
561 struct device_node *np, *regulators;
562 int ret;
563 u32 dcdcfreq = 0;
564
565 np = of_node_get(pdev->dev.parent->of_node);
566 if (!np)
567 return 0;
568
569 regulators = of_get_child_by_name(np, "regulators");
570 if (!regulators) {
571 dev_warn(&pdev->dev, "regulators node not found\n");
572 } else {
573 of_property_read_u32(regulators, "x-powers,dcdc-freq", &dcdcfreq);
574 ret = axp20x_set_dcdc_freq(pdev, dcdcfreq);
575 if (ret < 0) {
576 dev_err(&pdev->dev, "Error setting dcdc frequency: %d\n", ret);
577 return ret;
578 }
579
580 of_node_put(regulators);
581 }
582
583 return 0;
584 }
585
586 static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 workmode)
587 {
588 struct axp20x_dev *axp20x = rdev_get_drvdata(rdev);
589 unsigned int reg = AXP20X_DCDC_MODE;
590 unsigned int mask;
591
592 switch (axp20x->variant) {
593 case AXP202_ID:
594 case AXP209_ID:
595 if ((id != AXP20X_DCDC2) && (id != AXP20X_DCDC3))
596 return -EINVAL;
597
598 mask = AXP20X_WORKMODE_DCDC2_MASK;
599 if (id == AXP20X_DCDC3)
600 mask = AXP20X_WORKMODE_DCDC3_MASK;
601
602 workmode <<= ffs(mask) - 1;
603 break;
604
605 case AXP806_ID:
606 reg = AXP806_DCDC_MODE_CTRL2;
607 /*
608 * AXP806 DCDC regulator IDs have the same range as AXP22X.
609 * Fall through to the check below.
610 * (See include/linux/mfd/axp20x.h)
611 */
612 case AXP221_ID:
613 case AXP223_ID:
614 case AXP809_ID:
615 if (id < AXP22X_DCDC1 || id > AXP22X_DCDC5)
616 return -EINVAL;
617
618 mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP22X_DCDC1);
619 workmode <<= id - AXP22X_DCDC1;
620 break;
621
622 case AXP803_ID:
623 if (id < AXP803_DCDC1 || id > AXP803_DCDC6)
624 return -EINVAL;
625
626 mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP803_DCDC1);
627 workmode <<= id - AXP803_DCDC1;
628 break;
629
630 case AXP813_ID:
631 if (id < AXP813_DCDC1 || id > AXP813_DCDC7)
632 return -EINVAL;
633
634 mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP813_DCDC1);
635 workmode <<= id - AXP813_DCDC1;
636 break;
637
638 default:
639 /* should not happen */
640 WARN_ON(1);
641 return -EINVAL;
642 }
643
644 return regmap_update_bits(rdev->regmap, reg, mask, workmode);
645 }
646
647 /*
648 * This function checks whether a regulator is part of a poly-phase
649 * output setup based on the registers settings. Returns true if it is.
650 */
651 static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id)
652 {
653 u32 reg = 0;
654
655 /*
656 * Currently in our supported AXP variants, only AXP803, AXP806,
657 * and AXP813 have polyphase regulators.
658 */
659 switch (axp20x->variant) {
660 case AXP803_ID:
661 case AXP813_ID:
662 regmap_read(axp20x->regmap, AXP803_POLYPHASE_CTRL, &reg);
663
664 switch (id) {
665 case AXP803_DCDC3:
666 return !!(reg & BIT(6));
667 case AXP803_DCDC6:
668 return !!(reg & BIT(5));
669 }
670 break;
671
672 case AXP806_ID:
673 regmap_read(axp20x->regmap, AXP806_DCDC_MODE_CTRL2, &reg);
674
675 switch (id) {
676 case AXP806_DCDCB:
677 return (((reg & GENMASK(7, 6)) == BIT(6)) ||
678 ((reg & GENMASK(7, 6)) == BIT(7)));
679 case AXP806_DCDCC:
680 return ((reg & GENMASK(7, 6)) == BIT(7));
681 case AXP806_DCDCE:
682 return !!(reg & BIT(5));
683 }
684 break;
685
686 default:
687 return false;
688 }
689
690 return false;
691 }
692
693 static int axp20x_regulator_probe(struct platform_device *pdev)
694 {
695 struct regulator_dev *rdev;
696 struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
697 const struct regulator_desc *regulators;
698 struct regulator_config config = {
699 .dev = pdev->dev.parent,
700 .regmap = axp20x->regmap,
701 .driver_data = axp20x,
702 };
703 int ret, i, nregulators;
704 u32 workmode;
705 const char *dcdc1_name = axp22x_regulators[AXP22X_DCDC1].name;
706 const char *dcdc5_name = axp22x_regulators[AXP22X_DCDC5].name;
707 bool drivevbus = false;
708
709 switch (axp20x->variant) {
710 case AXP202_ID:
711 case AXP209_ID:
712 regulators = axp20x_regulators;
713 nregulators = AXP20X_REG_ID_MAX;
714 break;
715 case AXP221_ID:
716 case AXP223_ID:
717 regulators = axp22x_regulators;
718 nregulators = AXP22X_REG_ID_MAX;
719 drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
720 "x-powers,drive-vbus-en");
721 break;
722 case AXP803_ID:
723 regulators = axp803_regulators;
724 nregulators = AXP803_REG_ID_MAX;
725 drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
726 "x-powers,drive-vbus-en");
727 break;
728 case AXP806_ID:
729 regulators = axp806_regulators;
730 nregulators = AXP806_REG_ID_MAX;
731 break;
732 case AXP809_ID:
733 regulators = axp809_regulators;
734 nregulators = AXP809_REG_ID_MAX;
735 break;
736 case AXP813_ID:
737 regulators = axp813_regulators;
738 nregulators = AXP813_REG_ID_MAX;
739 drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
740 "x-powers,drive-vbus-en");
741 break;
742 default:
743 dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n",
744 axp20x->variant);
745 return -EINVAL;
746 }
747
748 /* This only sets the dcdc freq. Ignore any errors */
749 axp20x_regulator_parse_dt(pdev);
750
751 for (i = 0; i < nregulators; i++) {
752 const struct regulator_desc *desc = &regulators[i];
753 struct regulator_desc *new_desc;
754
755 /*
756 * If this regulator is a slave in a poly-phase setup,
757 * skip it, as its controls are bound to the master
758 * regulator and won't work.
759 */
760 if (axp20x_is_polyphase_slave(axp20x, i))
761 continue;
762
763 /* Support for AXP813's FLDO3 is not implemented */
764 if (axp20x->variant == AXP813_ID && i == AXP813_FLDO3)
765 continue;
766
767 /*
768 * Regulators DC1SW and DC5LDO are connected internally,
769 * so we have to handle their supply names separately.
770 *
771 * We always register the regulators in proper sequence,
772 * so the supply names are correctly read. See the last
773 * part of this loop to see where we save the DT defined
774 * name.
775 */
776 if ((regulators == axp22x_regulators && i == AXP22X_DC1SW) ||
777 (regulators == axp803_regulators && i == AXP803_DC1SW) ||
778 (regulators == axp809_regulators && i == AXP809_DC1SW)) {
779 new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
780 GFP_KERNEL);
781 if (!new_desc)
782 return -ENOMEM;
783
784 *new_desc = regulators[i];
785 new_desc->supply_name = dcdc1_name;
786 desc = new_desc;
787 }
788
789 if ((regulators == axp22x_regulators && i == AXP22X_DC5LDO) ||
790 (regulators == axp809_regulators && i == AXP809_DC5LDO)) {
791 new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc),
792 GFP_KERNEL);
793 if (!new_desc)
794 return -ENOMEM;
795
796 *new_desc = regulators[i];
797 new_desc->supply_name = dcdc5_name;
798 desc = new_desc;
799 }
800
801 rdev = devm_regulator_register(&pdev->dev, desc, &config);
802 if (IS_ERR(rdev)) {
803 dev_err(&pdev->dev, "Failed to register %s\n",
804 regulators[i].name);
805
806 return PTR_ERR(rdev);
807 }
808
809 ret = of_property_read_u32(rdev->dev.of_node,
810 "x-powers,dcdc-workmode",
811 &workmode);
812 if (!ret) {
813 if (axp20x_set_dcdc_workmode(rdev, i, workmode))
814 dev_err(&pdev->dev, "Failed to set workmode on %s\n",
815 rdev->desc->name);
816 }
817
818 /*
819 * Save AXP22X DCDC1 / DCDC5 regulator names for later.
820 */
821 if ((regulators == axp22x_regulators && i == AXP22X_DCDC1) ||
822 (regulators == axp809_regulators && i == AXP809_DCDC1))
823 of_property_read_string(rdev->dev.of_node,
824 "regulator-name",
825 &dcdc1_name);
826
827 if ((regulators == axp22x_regulators && i == AXP22X_DCDC5) ||
828 (regulators == axp809_regulators && i == AXP809_DCDC5))
829 of_property_read_string(rdev->dev.of_node,
830 "regulator-name",
831 &dcdc5_name);
832 }
833
834 if (drivevbus) {
835 /* Change N_VBUSEN sense pin to DRIVEVBUS output pin */
836 regmap_update_bits(axp20x->regmap, AXP20X_OVER_TMP,
837 AXP22X_MISC_N_VBUSEN_FUNC, 0);
838 rdev = devm_regulator_register(&pdev->dev,
839 &axp22x_drivevbus_regulator,
840 &config);
841 if (IS_ERR(rdev)) {
842 dev_err(&pdev->dev, "Failed to register drivevbus\n");
843 return PTR_ERR(rdev);
844 }
845 }
846
847 return 0;
848 }
849
850 static struct platform_driver axp20x_regulator_driver = {
851 .probe = axp20x_regulator_probe,
852 .driver = {
853 .name = "axp20x-regulator",
854 },
855 };
856
857 module_platform_driver(axp20x_regulator_driver);
858
859 MODULE_LICENSE("GPL v2");
860 MODULE_AUTHOR("Carlo Caione <carlo@caione.org>");
861 MODULE_DESCRIPTION("Regulator Driver for AXP20X PMIC");
862 MODULE_ALIAS("platform:axp20x-regulator");
Linux with added FPC-III support