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regulator: ab8500-ext: Remove *rdev from struct ab8500_ext_regulator_info
[linux-block.git] / drivers / regulator / ab8500-ext.c
CommitLineData
d1a82001
LJ		 1/*
2 * Copyright (C) ST-Ericsson SA 2010
3 *
4 * License Terms: GNU General Public License v2
5 *
6 * Authors: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
7 *
8 * This file is based on drivers/regulator/ab8500.c
9 *
10 * AB8500 external regulators
11 *
12 * ab8500-ext supports the following regulators:
13 * - VextSupply3
14 */
15#include <linux/init.h>
16#include <linux/kernel.h>
17#include <linux/err.h>
18#include <linux/module.h>
30aa4b26 19#include <linux/of.h>
d1a82001
LJ		 20#include <linux/platform_device.h>
21#include <linux/regulator/driver.h>
22#include <linux/regulator/machine.h>
30aa4b26 23#include <linux/regulator/of_regulator.h>
d1a82001
LJ		 24#include <linux/mfd/abx500.h>
25#include <linux/mfd/abx500/ab8500.h>
26#include <linux/regulator/ab8500.h>
27
79886be0
AB		 28static struct regulator_consumer_supply ab8500_vaux1_consumers[] = {
29 /* Main display, u8500 R3 uib */
30 REGULATOR_SUPPLY("vddi", "mcde_disp_sony_acx424akp.0"),
31 /* Main display, u8500 uib and ST uib */
32 REGULATOR_SUPPLY("vdd1", "samsung_s6d16d0.0"),
33 /* Secondary display, ST uib */
34 REGULATOR_SUPPLY("vdd1", "samsung_s6d16d0.1"),
35 /* SFH7741 proximity sensor */
36 REGULATOR_SUPPLY("vcc", "gpio-keys.0"),
37 /* BH1780GLS ambient light sensor */
38 REGULATOR_SUPPLY("vcc", "2-0029"),
39 /* lsm303dlh accelerometer */
40 REGULATOR_SUPPLY("vdd", "2-0018"),
41 /* lsm303dlhc accelerometer */
42 REGULATOR_SUPPLY("vdd", "2-0019"),
43 /* lsm303dlh magnetometer */
44 REGULATOR_SUPPLY("vdd", "2-001e"),
45 /* Rohm BU21013 Touchscreen devices */
46 REGULATOR_SUPPLY("avdd", "3-005c"),
47 REGULATOR_SUPPLY("avdd", "3-005d"),
48 /* Synaptics RMI4 Touchscreen device */
49 REGULATOR_SUPPLY("vdd", "3-004b"),
50 /* L3G4200D Gyroscope device */
51 REGULATOR_SUPPLY("vdd", "2-0068"),
52 /* Ambient light sensor device */
53 REGULATOR_SUPPLY("vdd", "3-0029"),
54 /* Pressure sensor device */
55 REGULATOR_SUPPLY("vdd", "2-005c"),
56 /* Cypress TrueTouch Touchscreen device */
57 REGULATOR_SUPPLY("vcpin", "spi8.0"),
58 /* Camera device */
59 REGULATOR_SUPPLY("vaux12v5", "mmio_camera"),
60};
61
62static struct regulator_consumer_supply ab8500_vaux2_consumers[] = {
63 /* On-board eMMC power */
64 REGULATOR_SUPPLY("vmmc", "sdi4"),
65 /* AB8500 audio codec */
66 REGULATOR_SUPPLY("vcc-N2158", "ab8500-codec.0"),
67 /* AB8500 accessory detect 1 */
68 REGULATOR_SUPPLY("vcc-N2158", "ab8500-acc-det.0"),
69 /* AB8500 Tv-out device */
70 REGULATOR_SUPPLY("vcc-N2158", "mcde_tv_ab8500.4"),
71 /* AV8100 HDMI device */
72 REGULATOR_SUPPLY("vcc-N2158", "av8100_hdmi.3"),
73};
74
75static struct regulator_consumer_supply ab8500_vaux3_consumers[] = {
76 REGULATOR_SUPPLY("v-SD-STM", "stm"),
77 /* External MMC slot power */
78 REGULATOR_SUPPLY("vmmc", "sdi0"),
79};
80
81static struct regulator_consumer_supply ab8500_vtvout_consumers[] = {
82 /* TV-out DENC supply */
83 REGULATOR_SUPPLY("vtvout", "ab8500-denc.0"),
84 /* Internal general-purpose ADC */
85 REGULATOR_SUPPLY("vddadc", "ab8500-gpadc.0"),
86 /* ADC for charger */
87 REGULATOR_SUPPLY("vddadc", "ab8500-charger.0"),
88 /* AB8500 Tv-out device */
89 REGULATOR_SUPPLY("vtvout", "mcde_tv_ab8500.4"),
90};
91
92static struct regulator_consumer_supply ab8500_vaud_consumers[] = {
93 /* AB8500 audio-codec main supply */
94 REGULATOR_SUPPLY("vaud", "ab8500-codec.0"),
95};
96
97static struct regulator_consumer_supply ab8500_vamic1_consumers[] = {
98 /* AB8500 audio-codec Mic1 supply */
99 REGULATOR_SUPPLY("vamic1", "ab8500-codec.0"),
100};
101
102static struct regulator_consumer_supply ab8500_vamic2_consumers[] = {
103 /* AB8500 audio-codec Mic2 supply */
104 REGULATOR_SUPPLY("vamic2", "ab8500-codec.0"),
105};
106
107static struct regulator_consumer_supply ab8500_vdmic_consumers[] = {
108 /* AB8500 audio-codec DMic supply */
109 REGULATOR_SUPPLY("vdmic", "ab8500-codec.0"),
110};
111
112static struct regulator_consumer_supply ab8500_vintcore_consumers[] = {
113 /* SoC core supply, no device */
114 REGULATOR_SUPPLY("v-intcore", NULL),
115 /* USB Transceiver */
116 REGULATOR_SUPPLY("vddulpivio18", "ab8500-usb.0"),
117 /* Handled by abx500 clk driver */
118 REGULATOR_SUPPLY("v-intcore", "abx500-clk.0"),
119};
120
121static struct regulator_consumer_supply ab8500_vana_consumers[] = {
122 /* DB8500 DSI */
123 REGULATOR_SUPPLY("vdddsi1v2", "mcde"),
124 REGULATOR_SUPPLY("vdddsi1v2", "b2r2_core"),
125 REGULATOR_SUPPLY("vdddsi1v2", "b2r2_1_core"),
126 REGULATOR_SUPPLY("vdddsi1v2", "dsilink.0"),
127 REGULATOR_SUPPLY("vdddsi1v2", "dsilink.1"),
128 REGULATOR_SUPPLY("vdddsi1v2", "dsilink.2"),
129 /* DB8500 CSI */
130 REGULATOR_SUPPLY("vddcsi1v2", "mmio_camera"),
131};
132
133/* ab8500 regulator register initialization */
134static struct ab8500_regulator_reg_init ab8500_reg_init[] = {
135 /*
136 * VanaRequestCtrl = HP/LP depending on VxRequest
137 * VextSupply1RequestCtrl = HP/LP depending on VxRequest
138 */
139 INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL2, 0xf0, 0x00),
140 /*
141 * VextSupply2RequestCtrl = HP/LP depending on VxRequest
142 * VextSupply3RequestCtrl = HP/LP depending on VxRequest
143 * Vaux1RequestCtrl = HP/LP depending on VxRequest
144 * Vaux2RequestCtrl = HP/LP depending on VxRequest
145 */
146 INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL3, 0xff, 0x00),
147 /*
148 * Vaux3RequestCtrl = HP/LP depending on VxRequest
149 * SwHPReq = Control through SWValid disabled
150 */
151 INIT_REGULATOR_REGISTER(AB8500_REGUREQUESTCTRL4, 0x07, 0x00),
152 /*
153 * VanaSysClkReq1HPValid = disabled
154 * Vaux1SysClkReq1HPValid = disabled
155 * Vaux2SysClkReq1HPValid = disabled
156 * Vaux3SysClkReq1HPValid = disabled
157 */
158 INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID1, 0xe8, 0x00),
159 /*
160 * VextSupply1SysClkReq1HPValid = disabled
161 * VextSupply2SysClkReq1HPValid = disabled
162 * VextSupply3SysClkReq1HPValid = SysClkReq1 controlled
163 */
164 INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQ1HPVALID2, 0x70, 0x40),
165 /*
166 * VanaHwHPReq1Valid = disabled
167 * Vaux1HwHPreq1Valid = disabled
168 * Vaux2HwHPReq1Valid = disabled
169 * Vaux3HwHPReqValid = disabled
170 */
171 INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID1, 0xe8, 0x00),
172 /*
173 * VextSupply1HwHPReq1Valid = disabled
174 * VextSupply2HwHPReq1Valid = disabled
175 * VextSupply3HwHPReq1Valid = disabled
176 */
177 INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ1VALID2, 0x07, 0x00),
178 /*
179 * VanaHwHPReq2Valid = disabled
180 * Vaux1HwHPReq2Valid = disabled
181 * Vaux2HwHPReq2Valid = disabled
182 * Vaux3HwHPReq2Valid = disabled
183 */
184 INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID1, 0xe8, 0x00),
185 /*
186 * VextSupply1HwHPReq2Valid = disabled
187 * VextSupply2HwHPReq2Valid = disabled
188 * VextSupply3HwHPReq2Valid = HWReq2 controlled
189 */
190 INIT_REGULATOR_REGISTER(AB8500_REGUHWHPREQ2VALID2, 0x07, 0x04),
191 /*
192 * VanaSwHPReqValid = disabled
193 * Vaux1SwHPReqValid = disabled
194 */
195 INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID1, 0xa0, 0x00),
196 /*
197 * Vaux2SwHPReqValid = disabled
198 * Vaux3SwHPReqValid = disabled
199 * VextSupply1SwHPReqValid = disabled
200 * VextSupply2SwHPReqValid = disabled
201 * VextSupply3SwHPReqValid = disabled
202 */
203 INIT_REGULATOR_REGISTER(AB8500_REGUSWHPREQVALID2, 0x1f, 0x00),
204 /*
205 * SysClkReq2Valid1 = SysClkReq2 controlled
206 * SysClkReq3Valid1 = disabled
207 * SysClkReq4Valid1 = SysClkReq4 controlled
208 * SysClkReq5Valid1 = disabled
209 * SysClkReq6Valid1 = SysClkReq6 controlled
210 * SysClkReq7Valid1 = disabled
211 * SysClkReq8Valid1 = disabled
212 */
213 INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID1, 0xfe, 0x2a),
214 /*
215 * SysClkReq2Valid2 = disabled
216 * SysClkReq3Valid2 = disabled
217 * SysClkReq4Valid2 = disabled
218 * SysClkReq5Valid2 = disabled
219 * SysClkReq6Valid2 = SysClkReq6 controlled
220 * SysClkReq7Valid2 = disabled
221 * SysClkReq8Valid2 = disabled
222 */
223 INIT_REGULATOR_REGISTER(AB8500_REGUSYSCLKREQVALID2, 0xfe, 0x20),
224 /*
225 * VTVoutEna = disabled
226 * Vintcore12Ena = disabled
227 * Vintcore12Sel = 1.25 V
228 * Vintcore12LP = inactive (HP)
229 * VTVoutLP = inactive (HP)
230 */
231 INIT_REGULATOR_REGISTER(AB8500_REGUMISC1, 0xfe, 0x10),
232 /*
233 * VaudioEna = disabled
234 * VdmicEna = disabled
235 * Vamic1Ena = disabled
236 * Vamic2Ena = disabled
237 */
238 INIT_REGULATOR_REGISTER(AB8500_VAUDIOSUPPLY, 0x1e, 0x00),
239 /*
240 * Vamic1_dzout = high-Z when Vamic1 is disabled
241 * Vamic2_dzout = high-Z when Vamic2 is disabled
242 */
243 INIT_REGULATOR_REGISTER(AB8500_REGUCTRL1VAMIC, 0x03, 0x00),
244 /*
245 * VPll = Hw controlled (NOTE! PRCMU bits)
246 * VanaRegu = force off
247 */
248 INIT_REGULATOR_REGISTER(AB8500_VPLLVANAREGU, 0x0f, 0x02),
249 /*
250 * VrefDDREna = disabled
251 * VrefDDRSleepMode = inactive (no pulldown)
252 */
253 INIT_REGULATOR_REGISTER(AB8500_VREFDDR, 0x03, 0x00),
254 /*
255 * VextSupply1Regu = force LP
256 * VextSupply2Regu = force OFF
257 * VextSupply3Regu = force HP (-> STBB2=LP and TPS=LP)
258 * ExtSupply2Bypass = ExtSupply12LPn ball is 0 when Ena is 0
259 * ExtSupply3Bypass = ExtSupply3LPn ball is 0 when Ena is 0
260 */
261 INIT_REGULATOR_REGISTER(AB8500_EXTSUPPLYREGU, 0xff, 0x13),
262 /*
263 * Vaux1Regu = force HP
264 * Vaux2Regu = force off
265 */
266 INIT_REGULATOR_REGISTER(AB8500_VAUX12REGU, 0x0f, 0x01),
267 /*
268 * Vaux3Regu = force off
269 */
270 INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3REGU, 0x03, 0x00),
271 /*
272 * Vaux1Sel = 2.8 V
273 */
274 INIT_REGULATOR_REGISTER(AB8500_VAUX1SEL, 0x0f, 0x0C),
275 /*
276 * Vaux2Sel = 2.9 V
277 */
278 INIT_REGULATOR_REGISTER(AB8500_VAUX2SEL, 0x0f, 0x0d),
279 /*
280 * Vaux3Sel = 2.91 V
281 */
282 INIT_REGULATOR_REGISTER(AB8500_VRF1VAUX3SEL, 0x07, 0x07),
283 /*
284 * VextSupply12LP = disabled (no LP)
285 */
286 INIT_REGULATOR_REGISTER(AB8500_REGUCTRL2SPARE, 0x01, 0x00),
287 /*
288 * Vaux1Disch = short discharge time
289 * Vaux2Disch = short discharge time
290 * Vaux3Disch = short discharge time
291 * Vintcore12Disch = short discharge time
292 * VTVoutDisch = short discharge time
293 * VaudioDisch = short discharge time
294 */
295 INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH, 0xfc, 0x00),
296 /*
297 * VanaDisch = short discharge time
298 * VdmicPullDownEna = pulldown disabled when Vdmic is disabled
299 * VdmicDisch = short discharge time
300 */
301 INIT_REGULATOR_REGISTER(AB8500_REGUCTRLDISCH2, 0x16, 0x00),
302};
303
304/* AB8500 regulators */
305static struct regulator_init_data ab8500_regulators[AB8500_NUM_REGULATORS] = {
306 /* supplies to the display/camera */
307 [AB8500_LDO_AUX1] = {
308 .supply_regulator = "ab8500-ext-supply3",
309 .constraints = {
310 .name = "V-DISPLAY",
311 .min_uV = 2800000,
312 .max_uV = 3300000,
313 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
314 REGULATOR_CHANGE_STATUS,
315 .boot_on = 1, /* display is on at boot */
316 },
317 .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux1_consumers),
318 .consumer_supplies = ab8500_vaux1_consumers,
319 },
320 /* supplies to the on-board eMMC */
321 [AB8500_LDO_AUX2] = {
322 .supply_regulator = "ab8500-ext-supply3",
323 .constraints = {
324 .name = "V-eMMC1",
325 .min_uV = 1100000,
326 .max_uV = 3300000,
327 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
328 REGULATOR_CHANGE_STATUS |
329 REGULATOR_CHANGE_MODE,
330 .valid_modes_mask = REGULATOR_MODE_NORMAL |
331 REGULATOR_MODE_IDLE,
332 },
333 .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux2_consumers),
334 .consumer_supplies = ab8500_vaux2_consumers,
335 },
336 /* supply for VAUX3, supplies to SDcard slots */
337 [AB8500_LDO_AUX3] = {
338 .supply_regulator = "ab8500-ext-supply3",
339 .constraints = {
340 .name = "V-MMC-SD",
341 .min_uV = 1100000,
342 .max_uV = 3300000,
343 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
344 REGULATOR_CHANGE_STATUS |
345 REGULATOR_CHANGE_MODE,
346 .valid_modes_mask = REGULATOR_MODE_NORMAL |
347 REGULATOR_MODE_IDLE,
348 },
349 .num_consumer_supplies = ARRAY_SIZE(ab8500_vaux3_consumers),
350 .consumer_supplies = ab8500_vaux3_consumers,
351 },
352 /* supply for tvout, gpadc, TVOUT LDO */
353 [AB8500_LDO_TVOUT] = {
354 .constraints = {
355 .name = "V-TVOUT",
356 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
357 },
358 .num_consumer_supplies = ARRAY_SIZE(ab8500_vtvout_consumers),
359 .consumer_supplies = ab8500_vtvout_consumers,
360 },
361 /* supply for ab8500-vaudio, VAUDIO LDO */
362 [AB8500_LDO_AUDIO] = {
363 .constraints = {
364 .name = "V-AUD",
365 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
366 },
367 .num_consumer_supplies = ARRAY_SIZE(ab8500_vaud_consumers),
368 .consumer_supplies = ab8500_vaud_consumers,
369 },
370 /* supply for v-anamic1 VAMic1-LDO */
371 [AB8500_LDO_ANAMIC1] = {
372 .constraints = {
373 .name = "V-AMIC1",
374 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
375 },
376 .num_consumer_supplies = ARRAY_SIZE(ab8500_vamic1_consumers),
377 .consumer_supplies = ab8500_vamic1_consumers,
378 },
379 /* supply for v-amic2, VAMIC2 LDO, reuse constants for AMIC1 */
380 [AB8500_LDO_ANAMIC2] = {
381 .constraints = {
382 .name = "V-AMIC2",
383 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
384 },
385 .num_consumer_supplies = ARRAY_SIZE(ab8500_vamic2_consumers),
386 .consumer_supplies = ab8500_vamic2_consumers,
387 },
388 /* supply for v-dmic, VDMIC LDO */
389 [AB8500_LDO_DMIC] = {
390 .constraints = {
391 .name = "V-DMIC",
392 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
393 },
394 .num_consumer_supplies = ARRAY_SIZE(ab8500_vdmic_consumers),
395 .consumer_supplies = ab8500_vdmic_consumers,
396 },
397 /* supply for v-intcore12, VINTCORE12 LDO */
398 [AB8500_LDO_INTCORE] = {
399 .constraints = {
400 .name = "V-INTCORE",
401 .min_uV = 1250000,
402 .max_uV = 1350000,
403 .input_uV = 1800000,
404 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
405 REGULATOR_CHANGE_STATUS |
406 REGULATOR_CHANGE_MODE |
407 REGULATOR_CHANGE_DRMS,
408 .valid_modes_mask = REGULATOR_MODE_NORMAL |
409 REGULATOR_MODE_IDLE,
410 },
411 .num_consumer_supplies = ARRAY_SIZE(ab8500_vintcore_consumers),
412 .consumer_supplies = ab8500_vintcore_consumers,
413 },
414 /* supply for U8500 CSI-DSI, VANA LDO */
415 [AB8500_LDO_ANA] = {
416 .constraints = {
417 .name = "V-CSI-DSI",
418 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
419 },
420 .num_consumer_supplies = ARRAY_SIZE(ab8500_vana_consumers),
421 .consumer_supplies = ab8500_vana_consumers,
422 },
423};
424
425/* supply for VextSupply3 */
426static struct regulator_consumer_supply ab8500_ext_supply3_consumers[] = {
427 /* SIM supply for 3 V SIM cards */
428 REGULATOR_SUPPLY("vinvsim", "sim-detect.0"),
429};
430
431/*
432 * AB8500 external regulators
433 */
434static struct regulator_init_data ab8500_ext_regulators[] = {
435 /* fixed Vbat supplies VSMPS1_EXT_1V8 */
436 [AB8500_EXT_SUPPLY1] = {
437 .constraints = {
438 .name = "ab8500-ext-supply1",
439 .min_uV = 1800000,
440 .max_uV = 1800000,
441 .initial_mode = REGULATOR_MODE_IDLE,
442 .boot_on = 1,
443 .always_on = 1,
444 },
445 },
446 /* fixed Vbat supplies VSMPS2_EXT_1V36 and VSMPS5_EXT_1V15 */
447 [AB8500_EXT_SUPPLY2] = {
448 .constraints = {
449 .name = "ab8500-ext-supply2",
450 .min_uV = 1360000,
451 .max_uV = 1360000,
452 },
453 },
454 /* fixed Vbat supplies VSMPS3_EXT_3V4 and VSMPS4_EXT_3V4 */
455 [AB8500_EXT_SUPPLY3] = {
456 .constraints = {
457 .name = "ab8500-ext-supply3",
458 .min_uV = 3400000,
459 .max_uV = 3400000,
460 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
461 .boot_on = 1,
462 },
463 .num_consumer_supplies =
464 ARRAY_SIZE(ab8500_ext_supply3_consumers),
465 .consumer_supplies = ab8500_ext_supply3_consumers,
466 },
467};
468
469static struct ab8500_regulator_platform_data ab8500_regulator_plat_data = {
470 .reg_init = ab8500_reg_init,
471 .num_reg_init = ARRAY_SIZE(ab8500_reg_init),
472 .regulator = ab8500_regulators,
473 .num_regulator = ARRAY_SIZE(ab8500_regulators),
474 .ext_regulator = ab8500_ext_regulators,
475 .num_ext_regulator = ARRAY_SIZE(ab8500_ext_regulators),
476};
477
d1a82001
LJ		 478/**
479 * struct ab8500_ext_regulator_info - ab8500 regulator information
480 * @dev: device pointer
481 * @desc: regulator description
18bc2b39 482 * @cfg: regulator configuration (extension of regulator FW configuration)
d1a82001
LJ		 483 * @update_bank: bank to control on/off
484 * @update_reg: register to control on/off
485 * @update_mask: mask to enable/disable and set mode of regulator
486 * @update_val: bits holding the regulator current mode
18bc2b39 487 * @update_val_hp: bits to set EN pin active (LPn pin deactive)
d1a82001 488 * normally this means high power mode
18bc2b39
BJ		 489 * @update_val_lp: bits to set EN pin active and LPn pin active
490 * normally this means low power mode
491 * @update_val_hw: bits to set regulator pins in HW control
492 * SysClkReq pins and logic will choose mode
d1a82001
LJ		 493 */
494struct ab8500_ext_regulator_info {
495 struct device *dev;
496 struct regulator_desc desc;
18bc2b39 497 struct ab8500_ext_regulator_cfg *cfg;
d1a82001
LJ		 498 u8 update_bank;
499 u8 update_reg;
500 u8 update_mask;
501 u8 update_val;
18bc2b39
BJ		 502 u8 update_val_hp;
503 u8 update_val_lp;
504 u8 update_val_hw;
d1a82001
LJ		 505};
506
7384744d 507static int ab8500_ext_regulator_enable(struct regulator_dev *rdev)
d1a82001
LJ		 508{
509 int ret;
7384744d
AL		 510 struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev);
511 u8 regval;
d1a82001 512
7384744d
AL		 513 if (info == NULL) {
514 dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
515 return -EINVAL;
516 }
18bc2b39
BJ		 517
518 /*
519 * To satisfy both HW high power request and SW request, the regulator
520 * must be on in high power.
521 */
522 if (info->cfg && info->cfg->hwreq)
7384744d
AL		 523 regval = info->update_val_hp;
524 else
525 regval = info->update_val;
d1a82001
LJ		 526
527 ret = abx500_mask_and_set_register_interruptible(info->dev,
528 info->update_bank, info->update_reg,
7384744d 529 info->update_mask, regval);
37daa8ae 530 if (ret < 0) {
80a9c22a 531 dev_err(rdev_get_dev(rdev),
d1a82001 532 "couldn't set enable bits for regulator\n");
37daa8ae
AL		 533 return ret;
534 }
d1a82001 535
7384744d
AL		 536 dev_dbg(rdev_get_dev(rdev),
537 "%s-enable (bank, reg, mask, value): 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
538 info->desc.name, info->update_bank, info->update_reg,
539 info->update_mask, regval);
540
541 return 0;
d1a82001
LJ		 542}
543
7384744d 544static int ab8500_ext_regulator_disable(struct regulator_dev *rdev)
d1a82001
LJ		 545{
546 int ret;
547 struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev);
18bc2b39 548 u8 regval;
d1a82001
LJ		 549
550 if (info == NULL) {
551 dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
552 return -EINVAL;
553 }
554
18bc2b39
BJ		 555 /*
556 * Set the regulator in HW request mode if configured
557 */
558 if (info->cfg && info->cfg->hwreq)
7384744d
AL		 559 regval = info->update_val_hw;
560 else
561 regval = 0;
18bc2b39 562
d1a82001
LJ		 563 ret = abx500_mask_and_set_register_interruptible(info->dev,
564 info->update_bank, info->update_reg,
7384744d 565 info->update_mask, regval);
37daa8ae 566 if (ret < 0) {
80a9c22a 567 dev_err(rdev_get_dev(rdev),
d1a82001 568 "couldn't set disable bits for regulator\n");
37daa8ae
AL		 569 return ret;
570 }
d1a82001 571
d1a82001
LJ		 572 dev_dbg(rdev_get_dev(rdev), "%s-disable (bank, reg, mask, value):"
573 " 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
574 info->desc.name, info->update_bank, info->update_reg,
18bc2b39 575 info->update_mask, regval);
d1a82001 576
7384744d 577 return 0;
d1a82001
LJ		 578}
579
580static int ab8500_ext_regulator_is_enabled(struct regulator_dev *rdev)
581{
582 int ret;
583 struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev);
584 u8 regval;
585
586 if (info == NULL) {
587 dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
588 return -EINVAL;
589 }
590
591 ret = abx500_get_register_interruptible(info->dev,
592 info->update_bank, info->update_reg, &regval);
593 if (ret < 0) {
594 dev_err(rdev_get_dev(rdev),
595 "couldn't read 0x%x register\n", info->update_reg);
596 return ret;
597 }
598
599 dev_dbg(rdev_get_dev(rdev), "%s-is_enabled (bank, reg, mask, value):"
600 " 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
601 info->desc.name, info->update_bank, info->update_reg,
602 info->update_mask, regval);
603
18bc2b39
BJ		 604 if (((regval & info->update_mask) == info->update_val_lp) ||
605 ((regval & info->update_mask) == info->update_val_hp))
9ab51a0e 606 return 1;
d1a82001 607 else
9ab51a0e 608 return 0;
d1a82001
LJ		 609}
610
611static int ab8500_ext_regulator_set_mode(struct regulator_dev *rdev,
612 unsigned int mode)
613{
614 int ret = 0;
615 struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev);
66511fa4 616 u8 regval;
d1a82001
LJ		 617
618 if (info == NULL) {
619 dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
620 return -EINVAL;
621 }
622
623 switch (mode) {
624 case REGULATOR_MODE_NORMAL:
66511fa4 625 regval = info->update_val_hp;
d1a82001
LJ		 626 break;
627 case REGULATOR_MODE_IDLE:
66511fa4 628 regval = info->update_val_lp;
d1a82001
LJ		 629 break;
630
631 default:
632 return -EINVAL;
633 }
634
66511fa4
AL		 635 /* If regulator is enabled and info->cfg->hwreq is set, the regulator
636 must be on in high power, so we don't need to write the register with
637 the same value.
638 */
639 if (ab8500_ext_regulator_is_enabled(rdev) &&
640 !(info->cfg && info->cfg->hwreq)) {
641 ret = abx500_mask_and_set_register_interruptible(info->dev,
642 info->update_bank, info->update_reg,
643 info->update_mask, regval);
644 if (ret < 0) {
d1a82001
LJ		 645 dev_err(rdev_get_dev(rdev),
646 "Could not set regulator mode.\n");
66511fa4
AL		 647 return ret;
648 }
d1a82001
LJ		 649
650 dev_dbg(rdev_get_dev(rdev),
651 "%s-set_mode (bank, reg, mask, value): "
652 "0x%x, 0x%x, 0x%x, 0x%x\n",
653 info->desc.name, info->update_bank, info->update_reg,
654 info->update_mask, regval);
655 }
656
66511fa4
AL		 657 info->update_val = regval;
658
659 return 0;
d1a82001
LJ		 660}
661
662static unsigned int ab8500_ext_regulator_get_mode(struct regulator_dev *rdev)
663{
664 struct ab8500_ext_regulator_info *info = rdev_get_drvdata(rdev);
665 int ret;
666
667 if (info == NULL) {
668 dev_err(rdev_get_dev(rdev), "regulator info null pointer\n");
669 return -EINVAL;
670 }
671
672 if (info->update_val == info->update_val_hp)
673 ret = REGULATOR_MODE_NORMAL;
674 else if (info->update_val == info->update_val_lp)
675 ret = REGULATOR_MODE_IDLE;
676 else
677 ret = -EINVAL;
678
679 return ret;
680}
681
33fb8802
LJ		 682static int ab8500_ext_set_voltage(struct regulator_dev *rdev, int min_uV,
683 int max_uV, unsigned *selector)
684{
685 struct regulation_constraints *regu_constraints = rdev->constraints;
686
687 if (!regu_constraints) {
688 dev_err(rdev_get_dev(rdev), "No regulator constraints\n");
689 return -EINVAL;
690 }
691
692 if (regu_constraints->min_uV == min_uV &&
693 regu_constraints->max_uV == max_uV)
694 return 0;
695
696 dev_err(rdev_get_dev(rdev),
697 "Requested min %duV max %duV != constrained min %duV max %duV\n",
698 min_uV, max_uV,
699 regu_constraints->min_uV, regu_constraints->max_uV);
700
701 return -EINVAL;
702}
703
d1a82001
LJ		 704static int ab8500_ext_list_voltage(struct regulator_dev *rdev,
705 unsigned selector)
706{
707 struct regulation_constraints *regu_constraints = rdev->constraints;
708
709 if (regu_constraints == NULL) {
710 dev_err(rdev_get_dev(rdev), "regulator constraints null pointer\n");
711 return -EINVAL;
712 }
713 /* return the uV for the fixed regulators */
714 if (regu_constraints->min_uV && regu_constraints->max_uV) {
715 if (regu_constraints->min_uV == regu_constraints->max_uV)
716 return regu_constraints->min_uV;
717 }
718 return -EINVAL;
719}
720
721static struct regulator_ops ab8500_ext_regulator_ops = {
722 .enable = ab8500_ext_regulator_enable,
723 .disable = ab8500_ext_regulator_disable,
724 .is_enabled = ab8500_ext_regulator_is_enabled,
725 .set_mode = ab8500_ext_regulator_set_mode,
726 .get_mode = ab8500_ext_regulator_get_mode,
33fb8802 727 .set_voltage = ab8500_ext_set_voltage,
d1a82001
LJ		 728 .list_voltage = ab8500_ext_list_voltage,
729};
730
d1a82001
LJ		 731static struct ab8500_ext_regulator_info
732 ab8500_ext_regulator_info[AB8500_NUM_EXT_REGULATORS] = {
733 [AB8500_EXT_SUPPLY1] = {
734 .desc = {
735 .name = "VEXTSUPPLY1",
736 .ops = &ab8500_ext_regulator_ops,
737 .type = REGULATOR_VOLTAGE,
738 .id = AB8500_EXT_SUPPLY1,
739 .owner = THIS_MODULE,
740 .n_voltages = 1,
741 },
742 .update_bank = 0x04,
743 .update_reg = 0x08,
744 .update_mask = 0x03,
745 .update_val = 0x01,
746 .update_val_hp = 0x01,
747 .update_val_lp = 0x03,
748 .update_val_hw = 0x02,
749 },
750 [AB8500_EXT_SUPPLY2] = {
751 .desc = {
752 .name = "VEXTSUPPLY2",
753 .ops = &ab8500_ext_regulator_ops,
754 .type = REGULATOR_VOLTAGE,
755 .id = AB8500_EXT_SUPPLY2,
756 .owner = THIS_MODULE,
757 .n_voltages = 1,
758 },
759 .update_bank = 0x04,
760 .update_reg = 0x08,
761 .update_mask = 0x0c,
762 .update_val = 0x04,
763 .update_val_hp = 0x04,
764 .update_val_lp = 0x0c,
765 .update_val_hw = 0x08,
766 },
767 [AB8500_EXT_SUPPLY3] = {
768 .desc = {
769 .name = "VEXTSUPPLY3",
770 .ops = &ab8500_ext_regulator_ops,
771 .type = REGULATOR_VOLTAGE,
772 .id = AB8500_EXT_SUPPLY3,
773 .owner = THIS_MODULE,
774 .n_voltages = 1,
775 },
776 .update_bank = 0x04,
777 .update_reg = 0x08,
778 .update_mask = 0x30,
779 .update_val = 0x10,
18bc2b39
BJ		 780 .update_val_hp = 0x10,
781 .update_val_lp = 0x30,
782 .update_val_hw = 0x20,
d1a82001
LJ		 783 },
784};
785
30aa4b26
LJ		 786static struct of_regulator_match ab8500_ext_regulator_match[] = {
787 { .name = "ab8500_ext1", .driver_data = (void *) AB8500_EXT_SUPPLY1, },
788 { .name = "ab8500_ext2", .driver_data = (void *) AB8500_EXT_SUPPLY2, },
789 { .name = "ab8500_ext3", .driver_data = (void *) AB8500_EXT_SUPPLY3, },
790};
791
08d49f43 792static int ab8500_ext_regulator_probe(struct platform_device *pdev)
d1a82001
LJ		 793{
794 struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
79886be0 795 struct ab8500_regulator_platform_data *pdata = &ab8500_regulator_plat_data;
30aa4b26 796 struct device_node *np = pdev->dev.of_node;
d1a82001 797 struct regulator_config config = { };
80a9c22a 798 struct regulator_dev *rdev;
d1a82001
LJ		 799 int i, err;
800
30aa4b26
LJ		 801 if (np) {
802 err = of_regulator_match(&pdev->dev, np,
803 ab8500_ext_regulator_match,
804 ARRAY_SIZE(ab8500_ext_regulator_match));
805 if (err < 0) {
806 dev_err(&pdev->dev,
807 "Error parsing regulator init data: %d\n", err);
808 return err;
809 }
810 }
811
d1a82001
LJ		 812 if (!ab8500) {
813 dev_err(&pdev->dev, "null mfd parent\n");
814 return -EINVAL;
815 }
30aa4b26 816
d1a82001
LJ		 817 /* make sure the platform data has the correct size */
818 if (pdata->num_ext_regulator != ARRAY_SIZE(ab8500_ext_regulator_info)) {
819 dev_err(&pdev->dev, "Configuration error: size mismatch.\n");
820 return -EINVAL;
821 }
822
823 /* check for AB8500 2.x */
a6324709 824 if (is_ab8500_2p0_or_earlier(ab8500)) {
d1a82001
LJ		 825 struct ab8500_ext_regulator_info *info;
826
827 /* VextSupply3LPn is inverted on AB8500 2.x */
828 info = &ab8500_ext_regulator_info[AB8500_EXT_SUPPLY3];
829 info->update_val = 0x30;
18bc2b39
BJ		 830 info->update_val_hp = 0x30;
831 info->update_val_lp = 0x10;
d1a82001
LJ		 832 }
833
834 /* register all regulators */
835 for (i = 0; i < ARRAY_SIZE(ab8500_ext_regulator_info); i++) {
836 struct ab8500_ext_regulator_info *info = NULL;
837
838 /* assign per-regulator data */
839 info = &ab8500_ext_regulator_info[i];
840 info->dev = &pdev->dev;
18bc2b39
BJ		 841 info->cfg = (struct ab8500_ext_regulator_cfg *)
842 pdata->ext_regulator[i].driver_data;
d1a82001
LJ		 843
844 config.dev = &pdev->dev;
d1a82001 845 config.driver_data = info;
30aa4b26
LJ		 846 config.of_node = ab8500_ext_regulator_match[i].of_node;
847 config.init_data = (np) ?
848 ab8500_ext_regulator_match[i].init_data :
849 &pdata->ext_regulator[i];
d1a82001
LJ		 850
851 /* register regulator with framework */
80a9c22a
AL		 852 rdev = devm_regulator_register(&pdev->dev, &info->desc,
853 &config);
854 if (IS_ERR(rdev)) {
d1a82001
LJ		 855 dev_err(&pdev->dev, "failed to register regulator %s\n",
856 info->desc.name);
80a9c22a 857 return PTR_ERR(rdev);
d1a82001
LJ		 858 }
859
80a9c22a 860 dev_dbg(&pdev->dev, "%s-probed\n", info->desc.name);
d1a82001
LJ		 861 }
862
863 return 0;
864}
865
5a49b4a5
LJ		 866static struct platform_driver ab8500_ext_regulator_driver = {
867 .probe = ab8500_ext_regulator_probe,
5a49b4a5
LJ		 868 .driver = {
869 .name = "ab8500-ext-regulator",
5a49b4a5
LJ		 870 },
871};
872
873static int __init ab8500_ext_regulator_init(void)
874{
875 int ret;
876
877 ret = platform_driver_register(&ab8500_ext_regulator_driver);
878 if (ret)
879 pr_err("Failed to register ab8500 ext regulator: %d\n", ret);
880
881 return ret;
882}
883subsys_initcall(ab8500_ext_regulator_init);
884
885static void __exit ab8500_ext_regulator_exit(void)
886{
887 platform_driver_unregister(&ab8500_ext_regulator_driver);
d1a82001 888}
5a49b4a5 889module_exit(ab8500_ext_regulator_exit);
d1a82001
LJ		 890
891MODULE_LICENSE("GPL v2");
892MODULE_AUTHOR("Bengt Jonsson <bengt.g.jonsson@stericsson.com>");
893MODULE_DESCRIPTION("AB8500 external regulator driver");
894MODULE_ALIAS("platform:ab8500-ext-regulator");
Linux 6.x block layer and io_uring tree(s)