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d321571d GC |
1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | // | |
3 | // Copyright (C) 2020 MediaTek Inc. | |
4 | // | |
5 | // Author: Gene Chen <gene_chen@richtek.com> | |
6 | ||
7 | #include <linux/init.h> | |
8 | #include <linux/kernel.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/of.h> | |
11 | #include <linux/platform_device.h> | |
12 | #include <linux/regmap.h> | |
13 | #include <linux/regulator/driver.h> | |
14 | #include <linux/regulator/machine.h> | |
15 | ||
16 | #include <dt-bindings/regulator/mediatek,mt6360-regulator.h> | |
17 | ||
18 | enum { | |
19 | MT6360_REGULATOR_BUCK1 = 0, | |
20 | MT6360_REGULATOR_BUCK2, | |
21 | MT6360_REGULATOR_LDO6, | |
22 | MT6360_REGULATOR_LDO7, | |
23 | MT6360_REGULATOR_LDO1, | |
24 | MT6360_REGULATOR_LDO2, | |
25 | MT6360_REGULATOR_LDO3, | |
26 | MT6360_REGULATOR_LDO5, | |
27 | MT6360_REGULATOR_MAX, | |
28 | }; | |
29 | ||
30 | struct mt6360_irq_mapping { | |
31 | const char *name; | |
32 | irq_handler_t handler; | |
33 | }; | |
34 | ||
35 | struct mt6360_regulator_desc { | |
36 | const struct regulator_desc desc; | |
37 | unsigned int mode_reg; | |
38 | unsigned int mode_mask; | |
39 | unsigned int state_reg; | |
40 | unsigned int state_mask; | |
41 | const struct mt6360_irq_mapping *irq_tables; | |
42 | int irq_table_size; | |
43 | }; | |
44 | ||
45 | struct mt6360_regulator_data { | |
46 | struct device *dev; | |
47 | struct regmap *regmap; | |
48 | }; | |
49 | ||
50 | static irqreturn_t mt6360_pgb_event_handler(int irq, void *data) | |
51 | { | |
52 | struct regulator_dev *rdev = data; | |
53 | ||
54 | regulator_notifier_call_chain(rdev, REGULATOR_EVENT_FAIL, NULL); | |
55 | return IRQ_HANDLED; | |
56 | } | |
57 | ||
58 | static irqreturn_t mt6360_oc_event_handler(int irq, void *data) | |
59 | { | |
60 | struct regulator_dev *rdev = data; | |
61 | ||
62 | regulator_notifier_call_chain(rdev, REGULATOR_EVENT_OVER_CURRENT, NULL); | |
63 | return IRQ_HANDLED; | |
64 | } | |
65 | ||
66 | static irqreturn_t mt6360_ov_event_handler(int irq, void *data) | |
67 | { | |
68 | struct regulator_dev *rdev = data; | |
69 | ||
70 | regulator_notifier_call_chain(rdev, REGULATOR_EVENT_REGULATION_OUT, NULL); | |
71 | return IRQ_HANDLED; | |
72 | } | |
73 | ||
74 | static irqreturn_t mt6360_uv_event_handler(int irq, void *data) | |
75 | { | |
76 | struct regulator_dev *rdev = data; | |
77 | ||
78 | regulator_notifier_call_chain(rdev, REGULATOR_EVENT_UNDER_VOLTAGE, NULL); | |
79 | return IRQ_HANDLED; | |
80 | } | |
81 | ||
82 | static const struct mt6360_irq_mapping buck1_irq_tbls[] = { | |
83 | { "buck1_pgb_evt", mt6360_pgb_event_handler }, | |
84 | { "buck1_oc_evt", mt6360_oc_event_handler }, | |
85 | { "buck1_ov_evt", mt6360_ov_event_handler }, | |
86 | { "buck1_uv_evt", mt6360_uv_event_handler }, | |
87 | }; | |
88 | ||
89 | static const struct mt6360_irq_mapping buck2_irq_tbls[] = { | |
90 | { "buck2_pgb_evt", mt6360_pgb_event_handler }, | |
91 | { "buck2_oc_evt", mt6360_oc_event_handler }, | |
92 | { "buck2_ov_evt", mt6360_ov_event_handler }, | |
93 | { "buck2_uv_evt", mt6360_uv_event_handler }, | |
94 | }; | |
95 | ||
96 | static const struct mt6360_irq_mapping ldo6_irq_tbls[] = { | |
97 | { "ldo6_pgb_evt", mt6360_pgb_event_handler }, | |
98 | { "ldo6_oc_evt", mt6360_oc_event_handler }, | |
99 | }; | |
100 | ||
101 | static const struct mt6360_irq_mapping ldo7_irq_tbls[] = { | |
102 | { "ldo7_pgb_evt", mt6360_pgb_event_handler }, | |
103 | { "ldo7_oc_evt", mt6360_oc_event_handler }, | |
104 | }; | |
105 | ||
106 | static const struct mt6360_irq_mapping ldo1_irq_tbls[] = { | |
107 | { "ldo1_pgb_evt", mt6360_pgb_event_handler }, | |
108 | { "ldo1_oc_evt", mt6360_oc_event_handler }, | |
109 | }; | |
110 | ||
111 | static const struct mt6360_irq_mapping ldo2_irq_tbls[] = { | |
112 | { "ldo2_pgb_evt", mt6360_pgb_event_handler }, | |
113 | { "ldo2_oc_evt", mt6360_oc_event_handler }, | |
114 | }; | |
115 | ||
116 | static const struct mt6360_irq_mapping ldo3_irq_tbls[] = { | |
117 | { "ldo3_pgb_evt", mt6360_pgb_event_handler }, | |
118 | { "ldo3_oc_evt", mt6360_oc_event_handler }, | |
119 | }; | |
120 | ||
121 | static const struct mt6360_irq_mapping ldo5_irq_tbls[] = { | |
122 | { "ldo5_pgb_evt", mt6360_pgb_event_handler }, | |
123 | { "ldo5_oc_evt", mt6360_oc_event_handler }, | |
124 | }; | |
125 | ||
126 | static const struct linear_range buck_vout_ranges[] = { | |
127 | REGULATOR_LINEAR_RANGE(300000, 0x00, 0xc7, 5000), | |
128 | REGULATOR_LINEAR_RANGE(1300000, 0xc8, 0xff, 0), | |
129 | }; | |
130 | ||
131 | static const struct linear_range ldo_vout_ranges1[] = { | |
132 | REGULATOR_LINEAR_RANGE(500000, 0x00, 0x09, 10000), | |
133 | REGULATOR_LINEAR_RANGE(600000, 0x0a, 0x10, 0), | |
134 | REGULATOR_LINEAR_RANGE(610000, 0x11, 0x19, 10000), | |
135 | REGULATOR_LINEAR_RANGE(700000, 0x1a, 0x20, 0), | |
136 | REGULATOR_LINEAR_RANGE(710000, 0x21, 0x29, 10000), | |
137 | REGULATOR_LINEAR_RANGE(800000, 0x2a, 0x30, 0), | |
138 | REGULATOR_LINEAR_RANGE(810000, 0x31, 0x39, 10000), | |
139 | REGULATOR_LINEAR_RANGE(900000, 0x3a, 0x40, 0), | |
140 | REGULATOR_LINEAR_RANGE(910000, 0x41, 0x49, 10000), | |
141 | REGULATOR_LINEAR_RANGE(1000000, 0x4a, 0x50, 0), | |
142 | REGULATOR_LINEAR_RANGE(1010000, 0x51, 0x59, 10000), | |
143 | REGULATOR_LINEAR_RANGE(1100000, 0x5a, 0x60, 0), | |
144 | REGULATOR_LINEAR_RANGE(1110000, 0x61, 0x69, 10000), | |
145 | REGULATOR_LINEAR_RANGE(1200000, 0x6a, 0x70, 0), | |
146 | REGULATOR_LINEAR_RANGE(1210000, 0x71, 0x79, 10000), | |
147 | REGULATOR_LINEAR_RANGE(1300000, 0x7a, 0x80, 0), | |
148 | REGULATOR_LINEAR_RANGE(1310000, 0x81, 0x89, 10000), | |
149 | REGULATOR_LINEAR_RANGE(1400000, 0x8a, 0x90, 0), | |
150 | REGULATOR_LINEAR_RANGE(1410000, 0x91, 0x99, 10000), | |
151 | REGULATOR_LINEAR_RANGE(1500000, 0x9a, 0xa0, 0), | |
152 | REGULATOR_LINEAR_RANGE(1510000, 0xa1, 0xa9, 10000), | |
153 | REGULATOR_LINEAR_RANGE(1600000, 0xaa, 0xb0, 0), | |
154 | REGULATOR_LINEAR_RANGE(1610000, 0xb1, 0xb9, 10000), | |
155 | REGULATOR_LINEAR_RANGE(1700000, 0xba, 0xc0, 0), | |
156 | REGULATOR_LINEAR_RANGE(1710000, 0xc1, 0xc9, 10000), | |
157 | REGULATOR_LINEAR_RANGE(1800000, 0xca, 0xd0, 0), | |
158 | REGULATOR_LINEAR_RANGE(1810000, 0xd1, 0xd9, 10000), | |
159 | REGULATOR_LINEAR_RANGE(1900000, 0xda, 0xe0, 0), | |
160 | REGULATOR_LINEAR_RANGE(1910000, 0xe1, 0xe9, 10000), | |
161 | REGULATOR_LINEAR_RANGE(2000000, 0xea, 0xf0, 0), | |
162 | REGULATOR_LINEAR_RANGE(2010000, 0xf1, 0xf9, 10000), | |
163 | REGULATOR_LINEAR_RANGE(2100000, 0xfa, 0xff, 0), | |
164 | }; | |
165 | ||
166 | static const struct linear_range ldo_vout_ranges2[] = { | |
167 | REGULATOR_LINEAR_RANGE(1200000, 0x00, 0x09, 10000), | |
168 | REGULATOR_LINEAR_RANGE(1300000, 0x0a, 0x10, 0), | |
169 | REGULATOR_LINEAR_RANGE(1310000, 0x11, 0x19, 10000), | |
170 | REGULATOR_LINEAR_RANGE(1400000, 0x1a, 0x1f, 0), | |
171 | REGULATOR_LINEAR_RANGE(1500000, 0x20, 0x29, 10000), | |
172 | REGULATOR_LINEAR_RANGE(1600000, 0x2a, 0x2f, 0), | |
173 | REGULATOR_LINEAR_RANGE(1700000, 0x30, 0x39, 10000), | |
174 | REGULATOR_LINEAR_RANGE(1800000, 0x3a, 0x40, 0), | |
175 | REGULATOR_LINEAR_RANGE(1810000, 0x41, 0x49, 10000), | |
176 | REGULATOR_LINEAR_RANGE(1900000, 0x4a, 0x4f, 0), | |
177 | REGULATOR_LINEAR_RANGE(2000000, 0x50, 0x59, 10000), | |
178 | REGULATOR_LINEAR_RANGE(2100000, 0x5a, 0x60, 0), | |
179 | REGULATOR_LINEAR_RANGE(2110000, 0x61, 0x69, 10000), | |
180 | REGULATOR_LINEAR_RANGE(2200000, 0x6a, 0x6f, 0), | |
181 | REGULATOR_LINEAR_RANGE(2500000, 0x70, 0x79, 10000), | |
182 | REGULATOR_LINEAR_RANGE(2600000, 0x7a, 0x7f, 0), | |
183 | REGULATOR_LINEAR_RANGE(2700000, 0x80, 0x89, 10000), | |
184 | REGULATOR_LINEAR_RANGE(2800000, 0x8a, 0x90, 0), | |
185 | REGULATOR_LINEAR_RANGE(2810000, 0x91, 0x99, 10000), | |
186 | REGULATOR_LINEAR_RANGE(2900000, 0x9a, 0xa0, 0), | |
187 | REGULATOR_LINEAR_RANGE(2910000, 0xa1, 0xa9, 10000), | |
188 | REGULATOR_LINEAR_RANGE(3000000, 0xaa, 0xb0, 0), | |
189 | REGULATOR_LINEAR_RANGE(3010000, 0xb1, 0xb9, 10000), | |
190 | REGULATOR_LINEAR_RANGE(3100000, 0xba, 0xc0, 0), | |
191 | REGULATOR_LINEAR_RANGE(3110000, 0xc1, 0xc9, 10000), | |
192 | REGULATOR_LINEAR_RANGE(3200000, 0xca, 0xcf, 0), | |
193 | REGULATOR_LINEAR_RANGE(3300000, 0xd0, 0xd9, 10000), | |
194 | REGULATOR_LINEAR_RANGE(3400000, 0xda, 0xe0, 0), | |
195 | REGULATOR_LINEAR_RANGE(3410000, 0xe1, 0xe9, 10000), | |
196 | REGULATOR_LINEAR_RANGE(3500000, 0xea, 0xf0, 0), | |
197 | REGULATOR_LINEAR_RANGE(3510000, 0xf1, 0xf9, 10000), | |
198 | REGULATOR_LINEAR_RANGE(3600000, 0xfa, 0xff, 0), | |
199 | }; | |
200 | ||
201 | static const struct linear_range ldo_vout_ranges3[] = { | |
202 | REGULATOR_LINEAR_RANGE(2700000, 0x00, 0x09, 10000), | |
203 | REGULATOR_LINEAR_RANGE(2800000, 0x0a, 0x10, 0), | |
204 | REGULATOR_LINEAR_RANGE(2810000, 0x11, 0x19, 10000), | |
205 | REGULATOR_LINEAR_RANGE(2900000, 0x1a, 0x20, 0), | |
206 | REGULATOR_LINEAR_RANGE(2910000, 0x21, 0x29, 10000), | |
207 | REGULATOR_LINEAR_RANGE(3000000, 0x2a, 0x30, 0), | |
208 | REGULATOR_LINEAR_RANGE(3010000, 0x31, 0x39, 10000), | |
209 | REGULATOR_LINEAR_RANGE(3100000, 0x3a, 0x40, 0), | |
210 | REGULATOR_LINEAR_RANGE(3110000, 0x41, 0x49, 10000), | |
211 | REGULATOR_LINEAR_RANGE(3200000, 0x4a, 0x4f, 0), | |
212 | REGULATOR_LINEAR_RANGE(3300000, 0x50, 0x59, 10000), | |
213 | REGULATOR_LINEAR_RANGE(3400000, 0x5a, 0x60, 0), | |
214 | REGULATOR_LINEAR_RANGE(3410000, 0x61, 0x69, 10000), | |
215 | REGULATOR_LINEAR_RANGE(3500000, 0x6a, 0x70, 0), | |
216 | REGULATOR_LINEAR_RANGE(3510000, 0x71, 0x79, 10000), | |
217 | REGULATOR_LINEAR_RANGE(3600000, 0x7a, 0x7f, 0), | |
218 | }; | |
219 | ||
220 | static int mt6360_regulator_set_mode(struct regulator_dev *rdev, | |
221 | unsigned int mode) | |
222 | { | |
223 | const struct mt6360_regulator_desc *rdesc = (struct mt6360_regulator_desc *)rdev->desc; | |
224 | struct regmap *regmap = rdev_get_regmap(rdev); | |
225 | int shift = ffs(rdesc->mode_mask) - 1; | |
226 | unsigned int val; | |
227 | int ret; | |
228 | ||
229 | switch (mode) { | |
230 | case REGULATOR_MODE_NORMAL: | |
231 | val = MT6360_OPMODE_NORMAL; | |
232 | break; | |
233 | case REGULATOR_MODE_STANDBY: | |
234 | val = MT6360_OPMODE_ULP; | |
235 | break; | |
236 | case REGULATOR_MODE_IDLE: | |
237 | val = MT6360_OPMODE_LP; | |
238 | break; | |
239 | default: | |
240 | return -EINVAL; | |
241 | } | |
242 | ||
243 | ret = regmap_update_bits(regmap, rdesc->mode_reg, rdesc->mode_mask, val << shift); | |
244 | if (ret) { | |
245 | dev_err(&rdev->dev, "%s: fail (%d)\n", __func__, ret); | |
246 | return ret; | |
247 | } | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
252 | static unsigned int mt6360_regulator_get_mode(struct regulator_dev *rdev) | |
253 | { | |
254 | const struct mt6360_regulator_desc *rdesc = (struct mt6360_regulator_desc *)rdev->desc; | |
255 | struct regmap *regmap = rdev_get_regmap(rdev); | |
256 | int shift = ffs(rdesc->mode_mask) - 1; | |
257 | unsigned int val; | |
258 | int ret; | |
259 | ||
260 | ret = regmap_read(regmap, rdesc->mode_reg, &val); | |
261 | if (ret) | |
262 | return ret; | |
263 | ||
264 | val &= rdesc->mode_mask; | |
265 | val >>= shift; | |
266 | ||
267 | switch (val) { | |
268 | case MT6360_OPMODE_LP: | |
269 | return REGULATOR_MODE_IDLE; | |
270 | case MT6360_OPMODE_ULP: | |
271 | return REGULATOR_MODE_STANDBY; | |
272 | case MT6360_OPMODE_NORMAL: | |
273 | return REGULATOR_MODE_NORMAL; | |
274 | default: | |
275 | return -EINVAL; | |
276 | } | |
277 | } | |
278 | ||
279 | static int mt6360_regulator_get_status(struct regulator_dev *rdev) | |
280 | { | |
281 | const struct mt6360_regulator_desc *rdesc = (struct mt6360_regulator_desc *)rdev->desc; | |
282 | struct regmap *regmap = rdev_get_regmap(rdev); | |
283 | unsigned int val; | |
284 | int ret; | |
285 | ||
286 | ret = regmap_read(regmap, rdesc->state_reg, &val); | |
287 | if (ret) | |
288 | return ret; | |
289 | ||
290 | if (val & rdesc->state_mask) | |
291 | return REGULATOR_STATUS_ON; | |
292 | ||
293 | return REGULATOR_STATUS_OFF; | |
294 | } | |
295 | ||
296 | static const struct regulator_ops mt6360_regulator_ops = { | |
297 | .list_voltage = regulator_list_voltage_linear_range, | |
298 | .enable = regulator_enable_regmap, | |
299 | .disable = regulator_disable_regmap, | |
300 | .is_enabled = regulator_is_enabled_regmap, | |
301 | .set_voltage_sel = regulator_set_voltage_sel_regmap, | |
302 | .get_voltage_sel = regulator_get_voltage_sel_regmap, | |
303 | .set_mode = mt6360_regulator_set_mode, | |
304 | .get_mode = mt6360_regulator_get_mode, | |
305 | .get_status = mt6360_regulator_get_status, | |
306 | }; | |
307 | ||
308 | static unsigned int mt6360_regulator_of_map_mode(unsigned int hw_mode) | |
309 | { | |
310 | switch (hw_mode) { | |
311 | case MT6360_OPMODE_NORMAL: | |
312 | return REGULATOR_MODE_NORMAL; | |
313 | case MT6360_OPMODE_LP: | |
314 | return REGULATOR_MODE_IDLE; | |
315 | case MT6360_OPMODE_ULP: | |
316 | return REGULATOR_MODE_STANDBY; | |
317 | default: | |
318 | return REGULATOR_MODE_INVALID; | |
319 | } | |
320 | } | |
321 | ||
322 | #define MT6360_REGULATOR_DESC(_name, _sname, ereg, emask, vreg, vmask, \ | |
323 | mreg, mmask, streg, stmask, vranges, \ | |
324 | vcnts, offon_delay, irq_tbls) \ | |
325 | { \ | |
326 | .desc = { \ | |
327 | .name = #_name, \ | |
328 | .supply_name = #_sname, \ | |
329 | .id = MT6360_REGULATOR_##_name, \ | |
330 | .of_match = of_match_ptr(#_name), \ | |
331 | .regulators_node = of_match_ptr("regulator"), \ | |
332 | .of_map_mode = mt6360_regulator_of_map_mode, \ | |
333 | .owner = THIS_MODULE, \ | |
334 | .ops = &mt6360_regulator_ops, \ | |
335 | .type = REGULATOR_VOLTAGE, \ | |
336 | .vsel_reg = vreg, \ | |
337 | .vsel_mask = vmask, \ | |
338 | .enable_reg = ereg, \ | |
339 | .enable_mask = emask, \ | |
340 | .linear_ranges = vranges, \ | |
341 | .n_linear_ranges = ARRAY_SIZE(vranges), \ | |
342 | .n_voltages = vcnts, \ | |
343 | .off_on_delay = offon_delay, \ | |
344 | }, \ | |
345 | .mode_reg = mreg, \ | |
346 | .mode_mask = mmask, \ | |
347 | .state_reg = streg, \ | |
348 | .state_mask = stmask, \ | |
349 | .irq_tables = irq_tbls, \ | |
350 | .irq_table_size = ARRAY_SIZE(irq_tbls), \ | |
351 | } | |
352 | ||
353 | static const struct mt6360_regulator_desc mt6360_regulator_descs[] = { | |
354 | MT6360_REGULATOR_DESC(BUCK1, BUCK1_VIN, 0x117, 0x40, 0x110, 0xff, 0x117, 0x30, 0x117, 0x04, | |
355 | buck_vout_ranges, 256, 0, buck1_irq_tbls), | |
356 | MT6360_REGULATOR_DESC(BUCK2, BUCK2_VIN, 0x127, 0x40, 0x120, 0xff, 0x127, 0x30, 0x127, 0x04, | |
357 | buck_vout_ranges, 256, 0, buck2_irq_tbls), | |
358 | MT6360_REGULATOR_DESC(LDO6, LDO_VIN3, 0x137, 0x40, 0x13B, 0xff, 0x137, 0x30, 0x137, 0x04, | |
359 | ldo_vout_ranges1, 256, 0, ldo6_irq_tbls), | |
360 | MT6360_REGULATOR_DESC(LDO7, LDO_VIN3, 0x131, 0x40, 0x135, 0xff, 0x131, 0x30, 0x131, 0x04, | |
361 | ldo_vout_ranges1, 256, 0, ldo7_irq_tbls), | |
362 | MT6360_REGULATOR_DESC(LDO1, LDO_VIN1, 0x217, 0x40, 0x21B, 0xff, 0x217, 0x30, 0x217, 0x04, | |
363 | ldo_vout_ranges2, 256, 0, ldo1_irq_tbls), | |
364 | MT6360_REGULATOR_DESC(LDO2, LDO_VIN1, 0x211, 0x40, 0x215, 0xff, 0x211, 0x30, 0x211, 0x04, | |
365 | ldo_vout_ranges2, 256, 0, ldo2_irq_tbls), | |
366 | MT6360_REGULATOR_DESC(LDO3, LDO_VIN1, 0x205, 0x40, 0x209, 0xff, 0x205, 0x30, 0x205, 0x04, | |
367 | ldo_vout_ranges2, 256, 100, ldo3_irq_tbls), | |
368 | MT6360_REGULATOR_DESC(LDO5, LDO_VIN2, 0x20B, 0x40, 0x20F, 0x7f, 0x20B, 0x30, 0x20B, 0x04, | |
369 | ldo_vout_ranges3, 128, 100, ldo5_irq_tbls), | |
370 | }; | |
371 | ||
372 | static int mt6360_regulator_irq_register(struct platform_device *pdev, | |
373 | struct regulator_dev *rdev, | |
374 | const struct mt6360_irq_mapping *tbls, | |
375 | int tbl_size) | |
376 | { | |
377 | int i, irq, ret; | |
378 | ||
379 | for (i = 0; i < tbl_size; i++) { | |
380 | const struct mt6360_irq_mapping *irq_desc = tbls + i; | |
381 | ||
382 | irq = platform_get_irq_byname(pdev, irq_desc->name); | |
f56f2b95 | 383 | if (irq < 0) |
d321571d | 384 | return irq; |
d321571d GC |
385 | |
386 | ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, irq_desc->handler, 0, | |
387 | irq_desc->name, rdev); | |
388 | if (ret) { | |
389 | dev_err(&pdev->dev, "Fail to request %s irq\n", irq_desc->name); | |
390 | return ret; | |
391 | } | |
392 | } | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
397 | static int mt6360_regulator_probe(struct platform_device *pdev) | |
398 | { | |
399 | struct mt6360_regulator_data *mrd; | |
400 | struct regulator_config config = {}; | |
401 | int i, ret; | |
402 | ||
403 | mrd = devm_kzalloc(&pdev->dev, sizeof(*mrd), GFP_KERNEL); | |
404 | if (!mrd) | |
405 | return -ENOMEM; | |
406 | ||
407 | mrd->dev = &pdev->dev; | |
408 | ||
409 | mrd->regmap = dev_get_regmap(pdev->dev.parent, NULL); | |
410 | if (!mrd->regmap) { | |
411 | dev_err(&pdev->dev, "Failed to get parent regmap\n"); | |
412 | return -ENODEV; | |
413 | } | |
414 | ||
415 | config.dev = pdev->dev.parent; | |
416 | config.driver_data = mrd; | |
417 | config.regmap = mrd->regmap; | |
418 | ||
419 | for (i = 0; i < ARRAY_SIZE(mt6360_regulator_descs); i++) { | |
420 | const struct mt6360_regulator_desc *rdesc = mt6360_regulator_descs + i; | |
421 | struct regulator_dev *rdev; | |
422 | ||
423 | rdev = devm_regulator_register(&pdev->dev, &rdesc->desc, &config); | |
424 | if (IS_ERR(rdev)) { | |
18ccf8b9 | 425 | dev_err(&pdev->dev, "Failed to register %d regulator\n", i); |
d321571d GC |
426 | return PTR_ERR(rdev); |
427 | } | |
428 | ||
429 | ret = mt6360_regulator_irq_register(pdev, rdev, rdesc->irq_tables, | |
430 | rdesc->irq_table_size); | |
431 | if (ret) { | |
18ccf8b9 | 432 | dev_err(&pdev->dev, "Failed to register %d regulator irqs\n", i); |
d321571d GC |
433 | return ret; |
434 | } | |
435 | } | |
436 | ||
437 | return 0; | |
438 | } | |
439 | ||
440 | static const struct platform_device_id mt6360_regulator_id_table[] = { | |
441 | { "mt6360-regulator", 0 }, | |
442 | {}, | |
443 | }; | |
444 | MODULE_DEVICE_TABLE(platform, mt6360_regulator_id_table); | |
445 | ||
446 | static struct platform_driver mt6360_regulator_driver = { | |
447 | .driver = { | |
448 | .name = "mt6360-regulator", | |
67dc71c6 | 449 | .probe_type = PROBE_PREFER_ASYNCHRONOUS, |
d321571d GC |
450 | }, |
451 | .probe = mt6360_regulator_probe, | |
452 | .id_table = mt6360_regulator_id_table, | |
453 | }; | |
454 | module_platform_driver(mt6360_regulator_driver); | |
455 | ||
456 | MODULE_AUTHOR("Gene Chen <gene_chen@richtek.com>"); | |
457 | MODULE_DESCRIPTION("MT6360 Regulator Driver"); | |
458 | MODULE_LICENSE("GPL v2"); |