2 * Voltage regulator support for AMS AS3722 PMIC
4 * Copyright (C) 2013 ams
6 * Author: Florian Lobmaier <florian.lobmaier@ams.com>
7 * Author: Laxman Dewangan <ldewangan@nvidia.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include <linux/err.h>
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/mfd/as3722.h>
30 #include <linux/of_platform.h>
31 #include <linux/platform_device.h>
32 #include <linux/regulator/driver.h>
33 #include <linux/regulator/machine.h>
34 #include <linux/regulator/of_regulator.h>
35 #include <linux/slab.h>
38 enum as3722_regulators_id
{
39 AS3722_REGULATOR_ID_SD0
,
40 AS3722_REGULATOR_ID_SD1
,
41 AS3722_REGULATOR_ID_SD2
,
42 AS3722_REGULATOR_ID_SD3
,
43 AS3722_REGULATOR_ID_SD4
,
44 AS3722_REGULATOR_ID_SD5
,
45 AS3722_REGULATOR_ID_SD6
,
46 AS3722_REGULATOR_ID_LDO0
,
47 AS3722_REGULATOR_ID_LDO1
,
48 AS3722_REGULATOR_ID_LDO2
,
49 AS3722_REGULATOR_ID_LDO3
,
50 AS3722_REGULATOR_ID_LDO4
,
51 AS3722_REGULATOR_ID_LDO5
,
52 AS3722_REGULATOR_ID_LDO6
,
53 AS3722_REGULATOR_ID_LDO7
,
54 AS3722_REGULATOR_ID_LDO9
,
55 AS3722_REGULATOR_ID_LDO10
,
56 AS3722_REGULATOR_ID_LDO11
,
57 AS3722_REGULATOR_ID_MAX
,
60 struct as3722_register_mapping
{
75 struct as3722_regulator_config_data
{
76 struct regulator_init_data
*reg_init
;
81 struct as3722_regulators
{
83 struct as3722
*as3722
;
84 struct regulator_dev
*rdevs
[AS3722_REGULATOR_ID_MAX
];
85 struct regulator_desc desc
[AS3722_REGULATOR_ID_MAX
];
86 struct as3722_regulator_config_data
87 reg_config_data
[AS3722_REGULATOR_ID_MAX
];
90 static const struct as3722_register_mapping as3722_reg_lookup
[] = {
92 .regulator_id
= AS3722_REGULATOR_ID_SD0
,
94 .vsel_reg
= AS3722_SD0_VOLTAGE_REG
,
95 .vsel_mask
= AS3722_SD_VSEL_MASK
,
96 .enable_reg
= AS3722_SD_CONTROL_REG
,
97 .enable_mask
= AS3722_SDn_CTRL(0),
98 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL1_REG
,
99 .sleep_ctrl_mask
= AS3722_SD0_EXT_ENABLE_MASK
,
100 .control_reg
= AS3722_SD0_CONTROL_REG
,
101 .mode_mask
= AS3722_SD0_MODE_FAST
,
102 .n_voltages
= AS3722_SD0_VSEL_MAX
+ 1,
105 .regulator_id
= AS3722_REGULATOR_ID_SD1
,
106 .name
= "as3722-sd1",
107 .vsel_reg
= AS3722_SD1_VOLTAGE_REG
,
108 .vsel_mask
= AS3722_SD_VSEL_MASK
,
109 .enable_reg
= AS3722_SD_CONTROL_REG
,
110 .enable_mask
= AS3722_SDn_CTRL(1),
111 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL1_REG
,
112 .sleep_ctrl_mask
= AS3722_SD1_EXT_ENABLE_MASK
,
113 .control_reg
= AS3722_SD1_CONTROL_REG
,
114 .mode_mask
= AS3722_SD1_MODE_FAST
,
115 .n_voltages
= AS3722_SD0_VSEL_MAX
+ 1,
118 .regulator_id
= AS3722_REGULATOR_ID_SD2
,
119 .name
= "as3722-sd2",
121 .vsel_reg
= AS3722_SD2_VOLTAGE_REG
,
122 .vsel_mask
= AS3722_SD_VSEL_MASK
,
123 .enable_reg
= AS3722_SD_CONTROL_REG
,
124 .enable_mask
= AS3722_SDn_CTRL(2),
125 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL1_REG
,
126 .sleep_ctrl_mask
= AS3722_SD2_EXT_ENABLE_MASK
,
127 .control_reg
= AS3722_SD23_CONTROL_REG
,
128 .mode_mask
= AS3722_SD2_MODE_FAST
,
129 .n_voltages
= AS3722_SD2_VSEL_MAX
+ 1,
132 .regulator_id
= AS3722_REGULATOR_ID_SD3
,
133 .name
= "as3722-sd3",
135 .vsel_reg
= AS3722_SD3_VOLTAGE_REG
,
136 .vsel_mask
= AS3722_SD_VSEL_MASK
,
137 .enable_reg
= AS3722_SD_CONTROL_REG
,
138 .enable_mask
= AS3722_SDn_CTRL(3),
139 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL1_REG
,
140 .sleep_ctrl_mask
= AS3722_SD3_EXT_ENABLE_MASK
,
141 .control_reg
= AS3722_SD23_CONTROL_REG
,
142 .mode_mask
= AS3722_SD3_MODE_FAST
,
143 .n_voltages
= AS3722_SD2_VSEL_MAX
+ 1,
146 .regulator_id
= AS3722_REGULATOR_ID_SD4
,
147 .name
= "as3722-sd4",
149 .vsel_reg
= AS3722_SD4_VOLTAGE_REG
,
150 .vsel_mask
= AS3722_SD_VSEL_MASK
,
151 .enable_reg
= AS3722_SD_CONTROL_REG
,
152 .enable_mask
= AS3722_SDn_CTRL(4),
153 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL2_REG
,
154 .sleep_ctrl_mask
= AS3722_SD4_EXT_ENABLE_MASK
,
155 .control_reg
= AS3722_SD4_CONTROL_REG
,
156 .mode_mask
= AS3722_SD4_MODE_FAST
,
157 .n_voltages
= AS3722_SD2_VSEL_MAX
+ 1,
160 .regulator_id
= AS3722_REGULATOR_ID_SD5
,
161 .name
= "as3722-sd5",
163 .vsel_reg
= AS3722_SD5_VOLTAGE_REG
,
164 .vsel_mask
= AS3722_SD_VSEL_MASK
,
165 .enable_reg
= AS3722_SD_CONTROL_REG
,
166 .enable_mask
= AS3722_SDn_CTRL(5),
167 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL2_REG
,
168 .sleep_ctrl_mask
= AS3722_SD5_EXT_ENABLE_MASK
,
169 .control_reg
= AS3722_SD5_CONTROL_REG
,
170 .mode_mask
= AS3722_SD5_MODE_FAST
,
171 .n_voltages
= AS3722_SD2_VSEL_MAX
+ 1,
174 .regulator_id
= AS3722_REGULATOR_ID_SD6
,
175 .name
= "as3722-sd6",
176 .vsel_reg
= AS3722_SD6_VOLTAGE_REG
,
177 .vsel_mask
= AS3722_SD_VSEL_MASK
,
178 .enable_reg
= AS3722_SD_CONTROL_REG
,
179 .enable_mask
= AS3722_SDn_CTRL(6),
180 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL2_REG
,
181 .sleep_ctrl_mask
= AS3722_SD6_EXT_ENABLE_MASK
,
182 .control_reg
= AS3722_SD6_CONTROL_REG
,
183 .mode_mask
= AS3722_SD6_MODE_FAST
,
184 .n_voltages
= AS3722_SD0_VSEL_MAX
+ 1,
187 .regulator_id
= AS3722_REGULATOR_ID_LDO0
,
188 .name
= "as3722-ldo0",
190 .vsel_reg
= AS3722_LDO0_VOLTAGE_REG
,
191 .vsel_mask
= AS3722_LDO0_VSEL_MASK
,
192 .enable_reg
= AS3722_LDOCONTROL0_REG
,
193 .enable_mask
= AS3722_LDO0_CTRL
,
194 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL3_REG
,
195 .sleep_ctrl_mask
= AS3722_LDO0_EXT_ENABLE_MASK
,
196 .n_voltages
= AS3722_LDO0_NUM_VOLT
,
199 .regulator_id
= AS3722_REGULATOR_ID_LDO1
,
200 .name
= "as3722-ldo1",
201 .sname
= "vin-ldo1-6",
202 .vsel_reg
= AS3722_LDO1_VOLTAGE_REG
,
203 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
204 .enable_reg
= AS3722_LDOCONTROL0_REG
,
205 .enable_mask
= AS3722_LDO1_CTRL
,
206 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL3_REG
,
207 .sleep_ctrl_mask
= AS3722_LDO1_EXT_ENABLE_MASK
,
208 .n_voltages
= AS3722_LDO_NUM_VOLT
,
211 .regulator_id
= AS3722_REGULATOR_ID_LDO2
,
212 .name
= "as3722-ldo2",
213 .sname
= "vin-ldo2-5-7",
214 .vsel_reg
= AS3722_LDO2_VOLTAGE_REG
,
215 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
216 .enable_reg
= AS3722_LDOCONTROL0_REG
,
217 .enable_mask
= AS3722_LDO2_CTRL
,
218 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL3_REG
,
219 .sleep_ctrl_mask
= AS3722_LDO2_EXT_ENABLE_MASK
,
220 .n_voltages
= AS3722_LDO_NUM_VOLT
,
223 .regulator_id
= AS3722_REGULATOR_ID_LDO3
,
224 .name
= "as3722-ldo3",
225 .name
= "vin-ldo3-4",
226 .vsel_reg
= AS3722_LDO3_VOLTAGE_REG
,
227 .vsel_mask
= AS3722_LDO3_VSEL_MASK
,
228 .enable_reg
= AS3722_LDOCONTROL0_REG
,
229 .enable_mask
= AS3722_LDO3_CTRL
,
230 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL3_REG
,
231 .sleep_ctrl_mask
= AS3722_LDO3_EXT_ENABLE_MASK
,
232 .n_voltages
= AS3722_LDO3_NUM_VOLT
,
235 .regulator_id
= AS3722_REGULATOR_ID_LDO4
,
236 .name
= "as3722-ldo4",
237 .name
= "vin-ldo3-4",
238 .vsel_reg
= AS3722_LDO4_VOLTAGE_REG
,
239 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
240 .enable_reg
= AS3722_LDOCONTROL0_REG
,
241 .enable_mask
= AS3722_LDO4_CTRL
,
242 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL4_REG
,
243 .sleep_ctrl_mask
= AS3722_LDO4_EXT_ENABLE_MASK
,
244 .n_voltages
= AS3722_LDO_NUM_VOLT
,
247 .regulator_id
= AS3722_REGULATOR_ID_LDO5
,
248 .name
= "as3722-ldo5",
249 .sname
= "vin-ldo2-5-7",
250 .vsel_reg
= AS3722_LDO5_VOLTAGE_REG
,
251 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
252 .enable_reg
= AS3722_LDOCONTROL0_REG
,
253 .enable_mask
= AS3722_LDO5_CTRL
,
254 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL4_REG
,
255 .sleep_ctrl_mask
= AS3722_LDO5_EXT_ENABLE_MASK
,
256 .n_voltages
= AS3722_LDO_NUM_VOLT
,
259 .regulator_id
= AS3722_REGULATOR_ID_LDO6
,
260 .name
= "as3722-ldo6",
261 .sname
= "vin-ldo1-6",
262 .vsel_reg
= AS3722_LDO6_VOLTAGE_REG
,
263 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
264 .enable_reg
= AS3722_LDOCONTROL0_REG
,
265 .enable_mask
= AS3722_LDO6_CTRL
,
266 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL4_REG
,
267 .sleep_ctrl_mask
= AS3722_LDO6_EXT_ENABLE_MASK
,
268 .n_voltages
= AS3722_LDO_NUM_VOLT
,
271 .regulator_id
= AS3722_REGULATOR_ID_LDO7
,
272 .name
= "as3722-ldo7",
273 .sname
= "vin-ldo2-5-7",
274 .vsel_reg
= AS3722_LDO7_VOLTAGE_REG
,
275 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
276 .enable_reg
= AS3722_LDOCONTROL0_REG
,
277 .enable_mask
= AS3722_LDO7_CTRL
,
278 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL4_REG
,
279 .sleep_ctrl_mask
= AS3722_LDO7_EXT_ENABLE_MASK
,
280 .n_voltages
= AS3722_LDO_NUM_VOLT
,
283 .regulator_id
= AS3722_REGULATOR_ID_LDO9
,
284 .name
= "as3722-ldo9",
285 .sname
= "vin-ldo9-10",
286 .vsel_reg
= AS3722_LDO9_VOLTAGE_REG
,
287 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
288 .enable_reg
= AS3722_LDOCONTROL1_REG
,
289 .enable_mask
= AS3722_LDO9_CTRL
,
290 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL5_REG
,
291 .sleep_ctrl_mask
= AS3722_LDO9_EXT_ENABLE_MASK
,
292 .n_voltages
= AS3722_LDO_NUM_VOLT
,
295 .regulator_id
= AS3722_REGULATOR_ID_LDO10
,
296 .name
= "as3722-ldo10",
297 .sname
= "vin-ldo9-10",
298 .vsel_reg
= AS3722_LDO10_VOLTAGE_REG
,
299 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
300 .enable_reg
= AS3722_LDOCONTROL1_REG
,
301 .enable_mask
= AS3722_LDO10_CTRL
,
302 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL5_REG
,
303 .sleep_ctrl_mask
= AS3722_LDO10_EXT_ENABLE_MASK
,
304 .n_voltages
= AS3722_LDO_NUM_VOLT
,
307 .regulator_id
= AS3722_REGULATOR_ID_LDO11
,
308 .name
= "as3722-ldo11",
309 .sname
= "vin-ldo11",
310 .vsel_reg
= AS3722_LDO11_VOLTAGE_REG
,
311 .vsel_mask
= AS3722_LDO_VSEL_MASK
,
312 .enable_reg
= AS3722_LDOCONTROL1_REG
,
313 .enable_mask
= AS3722_LDO11_CTRL
,
314 .sleep_ctrl_reg
= AS3722_ENABLE_CTRL5_REG
,
315 .sleep_ctrl_mask
= AS3722_LDO11_EXT_ENABLE_MASK
,
316 .n_voltages
= AS3722_LDO_NUM_VOLT
,
321 static const int as3722_ldo_current
[] = { 150000, 300000 };
322 static const int as3722_sd016_current
[] = { 2500000, 3000000, 3500000 };
324 static int as3722_current_to_index(int min_uA
, int max_uA
,
325 const int *curr_table
, int n_currents
)
329 for (i
= n_currents
- 1; i
>= 0; i
--) {
330 if ((min_uA
<= curr_table
[i
]) && (curr_table
[i
] <= max_uA
))
336 static int as3722_ldo_get_current_limit(struct regulator_dev
*rdev
)
338 struct as3722_regulators
*as3722_regs
= rdev_get_drvdata(rdev
);
339 struct as3722
*as3722
= as3722_regs
->as3722
;
340 int id
= rdev_get_id(rdev
);
344 ret
= as3722_read(as3722
, as3722_reg_lookup
[id
].vsel_reg
, &val
);
346 dev_err(as3722_regs
->dev
, "Reg 0x%02x read failed: %d\n",
347 as3722_reg_lookup
[id
].vsel_reg
, ret
);
350 if (val
& AS3722_LDO_ILIMIT_MASK
)
355 static int as3722_ldo_set_current_limit(struct regulator_dev
*rdev
,
356 int min_uA
, int max_uA
)
358 struct as3722_regulators
*as3722_regs
= rdev_get_drvdata(rdev
);
359 struct as3722
*as3722
= as3722_regs
->as3722
;
360 int id
= rdev_get_id(rdev
);
364 ret
= as3722_current_to_index(min_uA
, max_uA
, as3722_ldo_current
,
365 ARRAY_SIZE(as3722_ldo_current
));
367 dev_err(as3722_regs
->dev
,
368 "Current range min:max = %d:%d does not support\n",
373 reg
= AS3722_LDO_ILIMIT_BIT
;
374 return as3722_update_bits(as3722
, as3722_reg_lookup
[id
].vsel_reg
,
375 AS3722_LDO_ILIMIT_MASK
, reg
);
378 static struct regulator_ops as3722_ldo0_ops
= {
379 .is_enabled
= regulator_is_enabled_regmap
,
380 .enable
= regulator_enable_regmap
,
381 .disable
= regulator_disable_regmap
,
382 .list_voltage
= regulator_list_voltage_linear
,
383 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
384 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
385 .get_current_limit
= as3722_ldo_get_current_limit
,
386 .set_current_limit
= as3722_ldo_set_current_limit
,
389 static struct regulator_ops as3722_ldo0_extcntrl_ops
= {
390 .list_voltage
= regulator_list_voltage_linear
,
391 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
392 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
393 .get_current_limit
= as3722_ldo_get_current_limit
,
394 .set_current_limit
= as3722_ldo_set_current_limit
,
397 static int as3722_ldo3_set_tracking_mode(struct as3722_regulators
*as3722_reg
,
400 struct as3722
*as3722
= as3722_reg
->as3722
;
403 case AS3722_LDO3_MODE_PMOS
:
404 case AS3722_LDO3_MODE_PMOS_TRACKING
:
405 case AS3722_LDO3_MODE_NMOS
:
406 case AS3722_LDO3_MODE_SWITCH
:
407 return as3722_update_bits(as3722
,
408 as3722_reg_lookup
[id
].vsel_reg
,
409 AS3722_LDO3_MODE_MASK
, mode
);
416 static int as3722_ldo3_get_current_limit(struct regulator_dev
*rdev
)
421 static struct regulator_ops as3722_ldo3_ops
= {
422 .is_enabled
= regulator_is_enabled_regmap
,
423 .enable
= regulator_enable_regmap
,
424 .disable
= regulator_disable_regmap
,
425 .list_voltage
= regulator_list_voltage_linear
,
426 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
427 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
428 .get_current_limit
= as3722_ldo3_get_current_limit
,
431 static struct regulator_ops as3722_ldo3_extcntrl_ops
= {
432 .list_voltage
= regulator_list_voltage_linear
,
433 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
434 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
435 .get_current_limit
= as3722_ldo3_get_current_limit
,
438 static const struct regulator_linear_range as3722_ldo_ranges
[] = {
439 REGULATOR_LINEAR_RANGE(825000, 0x01, 0x24, 25000),
440 REGULATOR_LINEAR_RANGE(1725000, 0x40, 0x7F, 25000),
443 static struct regulator_ops as3722_ldo_ops
= {
444 .is_enabled
= regulator_is_enabled_regmap
,
445 .enable
= regulator_enable_regmap
,
446 .disable
= regulator_disable_regmap
,
447 .map_voltage
= regulator_map_voltage_linear_range
,
448 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
449 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
450 .list_voltage
= regulator_list_voltage_linear_range
,
451 .get_current_limit
= as3722_ldo_get_current_limit
,
452 .set_current_limit
= as3722_ldo_set_current_limit
,
455 static struct regulator_ops as3722_ldo_extcntrl_ops
= {
456 .map_voltage
= regulator_map_voltage_linear_range
,
457 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
458 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
459 .list_voltage
= regulator_list_voltage_linear_range
,
460 .get_current_limit
= as3722_ldo_get_current_limit
,
461 .set_current_limit
= as3722_ldo_set_current_limit
,
464 static unsigned int as3722_sd_get_mode(struct regulator_dev
*rdev
)
466 struct as3722_regulators
*as3722_regs
= rdev_get_drvdata(rdev
);
467 struct as3722
*as3722
= as3722_regs
->as3722
;
468 int id
= rdev_get_id(rdev
);
472 if (!as3722_reg_lookup
[id
].control_reg
)
475 ret
= as3722_read(as3722
, as3722_reg_lookup
[id
].control_reg
, &val
);
477 dev_err(as3722_regs
->dev
, "Reg 0x%02x read failed: %d\n",
478 as3722_reg_lookup
[id
].control_reg
, ret
);
482 if (val
& as3722_reg_lookup
[id
].mode_mask
)
483 return REGULATOR_MODE_FAST
;
485 return REGULATOR_MODE_NORMAL
;
488 static int as3722_sd_set_mode(struct regulator_dev
*rdev
,
491 struct as3722_regulators
*as3722_regs
= rdev_get_drvdata(rdev
);
492 struct as3722
*as3722
= as3722_regs
->as3722
;
493 u8 id
= rdev_get_id(rdev
);
497 if (!as3722_reg_lookup
[id
].control_reg
)
501 case REGULATOR_MODE_FAST
:
502 val
= as3722_reg_lookup
[id
].mode_mask
;
503 case REGULATOR_MODE_NORMAL
: /* fall down */
509 ret
= as3722_update_bits(as3722
, as3722_reg_lookup
[id
].control_reg
,
510 as3722_reg_lookup
[id
].mode_mask
, val
);
512 dev_err(as3722_regs
->dev
, "Reg 0x%02x update failed: %d\n",
513 as3722_reg_lookup
[id
].control_reg
, ret
);
519 static int as3722_sd016_get_current_limit(struct regulator_dev
*rdev
)
521 struct as3722_regulators
*as3722_regs
= rdev_get_drvdata(rdev
);
522 struct as3722
*as3722
= as3722_regs
->as3722
;
523 int id
= rdev_get_id(rdev
);
529 case AS3722_REGULATOR_ID_SD0
:
530 reg
= AS3722_OVCURRENT_REG
;
531 mask
= AS3722_OVCURRENT_SD0_TRIP_MASK
;
533 case AS3722_REGULATOR_ID_SD1
:
534 reg
= AS3722_OVCURRENT_REG
;
535 mask
= AS3722_OVCURRENT_SD1_TRIP_MASK
;
537 case AS3722_REGULATOR_ID_SD6
:
538 reg
= AS3722_OVCURRENT_DEB_REG
;
539 mask
= AS3722_OVCURRENT_SD6_TRIP_MASK
;
544 ret
= as3722_read(as3722
, reg
, &val
);
546 dev_err(as3722_regs
->dev
, "Reg 0x%02x read failed: %d\n",
551 val
>>= ffs(mask
) - 1;
554 return as3722_sd016_current
[val
];
557 static int as3722_sd016_set_current_limit(struct regulator_dev
*rdev
,
558 int min_uA
, int max_uA
)
560 struct as3722_regulators
*as3722_regs
= rdev_get_drvdata(rdev
);
561 struct as3722
*as3722
= as3722_regs
->as3722
;
562 int id
= rdev_get_id(rdev
);
568 ret
= as3722_current_to_index(min_uA
, max_uA
, as3722_sd016_current
,
569 ARRAY_SIZE(as3722_sd016_current
));
571 dev_err(as3722_regs
->dev
,
572 "Current range min:max = %d:%d does not support\n",
578 case AS3722_REGULATOR_ID_SD0
:
579 reg
= AS3722_OVCURRENT_REG
;
580 mask
= AS3722_OVCURRENT_SD0_TRIP_MASK
;
582 case AS3722_REGULATOR_ID_SD1
:
583 reg
= AS3722_OVCURRENT_REG
;
584 mask
= AS3722_OVCURRENT_SD1_TRIP_MASK
;
586 case AS3722_REGULATOR_ID_SD6
:
587 reg
= AS3722_OVCURRENT_DEB_REG
;
588 mask
= AS3722_OVCURRENT_SD6_TRIP_MASK
;
594 val
<<= ffs(mask
) - 1;
595 return as3722_update_bits(as3722
, reg
, mask
, val
);
598 static const struct regulator_linear_range as3722_sd2345_ranges
[] = {
599 REGULATOR_LINEAR_RANGE(612500, 0x01, 0x40, 12500),
600 REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
601 REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7F, 50000),
604 static struct regulator_ops as3722_sd016_ops
= {
605 .is_enabled
= regulator_is_enabled_regmap
,
606 .enable
= regulator_enable_regmap
,
607 .disable
= regulator_disable_regmap
,
608 .list_voltage
= regulator_list_voltage_linear
,
609 .map_voltage
= regulator_map_voltage_linear
,
610 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
611 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
612 .get_current_limit
= as3722_sd016_get_current_limit
,
613 .set_current_limit
= as3722_sd016_set_current_limit
,
614 .get_mode
= as3722_sd_get_mode
,
615 .set_mode
= as3722_sd_set_mode
,
618 static struct regulator_ops as3722_sd016_extcntrl_ops
= {
619 .list_voltage
= regulator_list_voltage_linear
,
620 .map_voltage
= regulator_map_voltage_linear
,
621 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
622 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
623 .get_current_limit
= as3722_sd016_get_current_limit
,
624 .set_current_limit
= as3722_sd016_set_current_limit
,
625 .get_mode
= as3722_sd_get_mode
,
626 .set_mode
= as3722_sd_set_mode
,
629 static struct regulator_ops as3722_sd2345_ops
= {
630 .is_enabled
= regulator_is_enabled_regmap
,
631 .enable
= regulator_enable_regmap
,
632 .disable
= regulator_disable_regmap
,
633 .list_voltage
= regulator_list_voltage_linear_range
,
634 .map_voltage
= regulator_map_voltage_linear_range
,
635 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
636 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
637 .get_mode
= as3722_sd_get_mode
,
638 .set_mode
= as3722_sd_set_mode
,
641 static struct regulator_ops as3722_sd2345_extcntrl_ops
= {
642 .list_voltage
= regulator_list_voltage_linear_range
,
643 .map_voltage
= regulator_map_voltage_linear_range
,
644 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
645 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
646 .get_mode
= as3722_sd_get_mode
,
647 .set_mode
= as3722_sd_set_mode
,
650 static int as3722_extreg_init(struct as3722_regulators
*as3722_regs
, int id
,
656 if ((ext_pwr_ctrl
< AS3722_EXT_CONTROL_ENABLE1
) ||
657 (ext_pwr_ctrl
> AS3722_EXT_CONTROL_ENABLE3
))
660 val
= ext_pwr_ctrl
<< (ffs(as3722_reg_lookup
[id
].sleep_ctrl_mask
) - 1);
661 ret
= as3722_update_bits(as3722_regs
->as3722
,
662 as3722_reg_lookup
[id
].sleep_ctrl_reg
,
663 as3722_reg_lookup
[id
].sleep_ctrl_mask
, val
);
665 dev_err(as3722_regs
->dev
, "Reg 0x%02x update failed: %d\n",
666 as3722_reg_lookup
[id
].sleep_ctrl_reg
, ret
);
670 static struct of_regulator_match as3722_regulator_matches
[] = {
687 { .name
= "ldo10", },
688 { .name
= "ldo11", },
691 static int as3722_get_regulator_dt_data(struct platform_device
*pdev
,
692 struct as3722_regulators
*as3722_regs
)
694 struct device_node
*np
;
695 struct as3722_regulator_config_data
*reg_config
;
700 np
= of_get_child_by_name(pdev
->dev
.parent
->of_node
, "regulators");
702 dev_err(&pdev
->dev
, "Device is not having regulators node\n");
705 pdev
->dev
.of_node
= np
;
707 ret
= of_regulator_match(&pdev
->dev
, np
, as3722_regulator_matches
,
708 ARRAY_SIZE(as3722_regulator_matches
));
710 dev_err(&pdev
->dev
, "Parsing of regulator node failed: %d\n",
715 for (id
= 0; id
< ARRAY_SIZE(as3722_regulator_matches
); ++id
) {
716 struct device_node
*reg_node
;
718 reg_config
= &as3722_regs
->reg_config_data
[id
];
719 reg_config
->reg_init
= as3722_regulator_matches
[id
].init_data
;
720 reg_node
= as3722_regulator_matches
[id
].of_node
;
722 if (!reg_config
->reg_init
|| !reg_node
)
725 ret
= of_property_read_u32(reg_node
, "ams,ext-control", &prop
);
728 reg_config
->ext_control
= prop
;
731 "ext-control have invalid option: %u\n",
734 reg_config
->enable_tracking
=
735 of_property_read_bool(reg_node
, "ams,enable-tracking");
740 static int as3722_regulator_probe(struct platform_device
*pdev
)
742 struct as3722
*as3722
= dev_get_drvdata(pdev
->dev
.parent
);
743 struct as3722_regulators
*as3722_regs
;
744 struct as3722_regulator_config_data
*reg_config
;
745 struct regulator_dev
*rdev
;
746 struct regulator_config config
= { };
747 struct regulator_ops
*ops
;
751 as3722_regs
= devm_kzalloc(&pdev
->dev
, sizeof(*as3722_regs
),
756 as3722_regs
->dev
= &pdev
->dev
;
757 as3722_regs
->as3722
= as3722
;
758 platform_set_drvdata(pdev
, as3722_regs
);
760 ret
= as3722_get_regulator_dt_data(pdev
, as3722_regs
);
764 config
.dev
= &pdev
->dev
;
765 config
.driver_data
= as3722_regs
;
766 config
.regmap
= as3722
->regmap
;
768 for (id
= 0; id
< AS3722_REGULATOR_ID_MAX
; id
++) {
769 reg_config
= &as3722_regs
->reg_config_data
[id
];
771 as3722_regs
->desc
[id
].name
= as3722_reg_lookup
[id
].name
;
772 as3722_regs
->desc
[id
].supply_name
= as3722_reg_lookup
[id
].sname
;
773 as3722_regs
->desc
[id
].id
= as3722_reg_lookup
[id
].regulator_id
;
774 as3722_regs
->desc
[id
].n_voltages
=
775 as3722_reg_lookup
[id
].n_voltages
;
776 as3722_regs
->desc
[id
].type
= REGULATOR_VOLTAGE
;
777 as3722_regs
->desc
[id
].owner
= THIS_MODULE
;
778 as3722_regs
->desc
[id
].enable_reg
=
779 as3722_reg_lookup
[id
].enable_reg
;
780 as3722_regs
->desc
[id
].enable_mask
=
781 as3722_reg_lookup
[id
].enable_mask
;
782 as3722_regs
->desc
[id
].vsel_reg
= as3722_reg_lookup
[id
].vsel_reg
;
783 as3722_regs
->desc
[id
].vsel_mask
=
784 as3722_reg_lookup
[id
].vsel_mask
;
786 case AS3722_REGULATOR_ID_LDO0
:
787 if (reg_config
->ext_control
)
788 ops
= &as3722_ldo0_extcntrl_ops
;
790 ops
= &as3722_ldo0_ops
;
791 as3722_regs
->desc
[id
].min_uV
= 825000;
792 as3722_regs
->desc
[id
].uV_step
= 25000;
793 as3722_regs
->desc
[id
].linear_min_sel
= 1;
794 as3722_regs
->desc
[id
].enable_time
= 500;
796 case AS3722_REGULATOR_ID_LDO3
:
797 if (reg_config
->ext_control
)
798 ops
= &as3722_ldo3_extcntrl_ops
;
800 ops
= &as3722_ldo3_ops
;
801 as3722_regs
->desc
[id
].min_uV
= 620000;
802 as3722_regs
->desc
[id
].uV_step
= 20000;
803 as3722_regs
->desc
[id
].linear_min_sel
= 1;
804 as3722_regs
->desc
[id
].enable_time
= 500;
805 if (reg_config
->enable_tracking
) {
806 ret
= as3722_ldo3_set_tracking_mode(as3722_regs
,
807 id
, AS3722_LDO3_MODE_PMOS_TRACKING
);
810 "LDO3 tracking failed: %d\n",
816 case AS3722_REGULATOR_ID_SD0
:
817 case AS3722_REGULATOR_ID_SD1
:
818 case AS3722_REGULATOR_ID_SD6
:
819 if (reg_config
->ext_control
)
820 ops
= &as3722_sd016_extcntrl_ops
;
822 ops
= &as3722_sd016_ops
;
823 as3722_regs
->desc
[id
].min_uV
= 610000;
824 as3722_regs
->desc
[id
].uV_step
= 10000;
825 as3722_regs
->desc
[id
].linear_min_sel
= 1;
827 case AS3722_REGULATOR_ID_SD2
:
828 case AS3722_REGULATOR_ID_SD3
:
829 case AS3722_REGULATOR_ID_SD4
:
830 case AS3722_REGULATOR_ID_SD5
:
831 if (reg_config
->ext_control
)
832 ops
= &as3722_sd2345_extcntrl_ops
;
834 ops
= &as3722_sd2345_ops
;
835 as3722_regs
->desc
[id
].linear_ranges
=
836 as3722_sd2345_ranges
;
837 as3722_regs
->desc
[id
].n_linear_ranges
=
838 ARRAY_SIZE(as3722_sd2345_ranges
);
841 if (reg_config
->ext_control
)
842 ops
= &as3722_ldo_extcntrl_ops
;
844 ops
= &as3722_ldo_ops
;
845 as3722_regs
->desc
[id
].min_uV
= 825000;
846 as3722_regs
->desc
[id
].uV_step
= 25000;
847 as3722_regs
->desc
[id
].linear_min_sel
= 1;
848 as3722_regs
->desc
[id
].enable_time
= 500;
849 as3722_regs
->desc
[id
].linear_ranges
= as3722_ldo_ranges
;
850 as3722_regs
->desc
[id
].n_linear_ranges
=
851 ARRAY_SIZE(as3722_ldo_ranges
);
854 as3722_regs
->desc
[id
].ops
= ops
;
855 config
.init_data
= reg_config
->reg_init
;
856 config
.of_node
= as3722_regulator_matches
[id
].of_node
;
857 rdev
= devm_regulator_register(&pdev
->dev
,
858 &as3722_regs
->desc
[id
], &config
);
861 dev_err(&pdev
->dev
, "regulator %d register failed %d\n",
866 as3722_regs
->rdevs
[id
] = rdev
;
867 if (reg_config
->ext_control
) {
868 ret
= regulator_enable_regmap(rdev
);
871 "Regulator %d enable failed: %d\n",
875 ret
= as3722_extreg_init(as3722_regs
, id
,
876 reg_config
->ext_control
);
879 "AS3722 ext control failed: %d", ret
);
887 static const struct of_device_id of_as3722_regulator_match
[] = {
888 { .compatible
= "ams,as3722-regulator", },
891 MODULE_DEVICE_TABLE(of
, of_as3722_regulator_match
);
893 static struct platform_driver as3722_regulator_driver
= {
895 .name
= "as3722-regulator",
896 .owner
= THIS_MODULE
,
897 .of_match_table
= of_as3722_regulator_match
,
899 .probe
= as3722_regulator_probe
,
902 module_platform_driver(as3722_regulator_driver
);
904 MODULE_ALIAS("platform:as3722-regulator");
905 MODULE_DESCRIPTION("AS3722 regulator driver");
906 MODULE_AUTHOR("Florian Lobmaier <florian.lobmaier@ams.com>");
907 MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
908 MODULE_LICENSE("GPL");