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97fb5e8d | 1 | // SPDX-License-Identifier: GPL-2.0-only |
e92a4047 SB |
2 | /* |
3 | * Copyright (c) 2012-2015, The Linux Foundation. All rights reserved. | |
e92a4047 SB |
4 | */ |
5 | ||
6 | #include <linux/module.h> | |
7 | #include <linux/delay.h> | |
8 | #include <linux/err.h> | |
9 | #include <linux/kernel.h> | |
10 | #include <linux/interrupt.h> | |
11 | #include <linux/bitops.h> | |
12 | #include <linux/slab.h> | |
13 | #include <linux/of.h> | |
14 | #include <linux/of_device.h> | |
15 | #include <linux/platform_device.h> | |
16 | #include <linux/ktime.h> | |
17 | #include <linux/regulator/driver.h> | |
18 | #include <linux/regmap.h> | |
19 | #include <linux/list.h> | |
0caecaa8 IL |
20 | #include <linux/mfd/syscon.h> |
21 | #include <linux/io.h> | |
e92a4047 | 22 | |
e2adfacd SB |
23 | /* Pin control enable input pins. */ |
24 | #define SPMI_REGULATOR_PIN_CTRL_ENABLE_NONE 0x00 | |
25 | #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN0 0x01 | |
26 | #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN1 0x02 | |
27 | #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN2 0x04 | |
28 | #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN3 0x08 | |
29 | #define SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT 0x10 | |
30 | ||
31 | /* Pin control high power mode input pins. */ | |
32 | #define SPMI_REGULATOR_PIN_CTRL_HPM_NONE 0x00 | |
33 | #define SPMI_REGULATOR_PIN_CTRL_HPM_EN0 0x01 | |
34 | #define SPMI_REGULATOR_PIN_CTRL_HPM_EN1 0x02 | |
35 | #define SPMI_REGULATOR_PIN_CTRL_HPM_EN2 0x04 | |
36 | #define SPMI_REGULATOR_PIN_CTRL_HPM_EN3 0x08 | |
37 | #define SPMI_REGULATOR_PIN_CTRL_HPM_SLEEP_B 0x10 | |
38 | #define SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT 0x20 | |
39 | ||
40 | /* | |
41 | * Used with enable parameters to specify that hardware default register values | |
42 | * should be left unaltered. | |
43 | */ | |
44 | #define SPMI_REGULATOR_USE_HW_DEFAULT 2 | |
45 | ||
46 | /* Soft start strength of a voltage switch type regulator */ | |
47 | enum spmi_vs_soft_start_str { | |
48 | SPMI_VS_SOFT_START_STR_0P05_UA = 0, | |
49 | SPMI_VS_SOFT_START_STR_0P25_UA, | |
50 | SPMI_VS_SOFT_START_STR_0P55_UA, | |
51 | SPMI_VS_SOFT_START_STR_0P75_UA, | |
52 | SPMI_VS_SOFT_START_STR_HW_DEFAULT, | |
53 | }; | |
54 | ||
55 | /** | |
56 | * struct spmi_regulator_init_data - spmi-regulator initialization data | |
57 | * @pin_ctrl_enable: Bit mask specifying which hardware pins should be | |
58 | * used to enable the regulator, if any | |
59 | * Value should be an ORing of | |
60 | * SPMI_REGULATOR_PIN_CTRL_ENABLE_* constants. If | |
61 | * the bit specified by | |
62 | * SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT is | |
63 | * set, then pin control enable hardware registers | |
64 | * will not be modified. | |
65 | * @pin_ctrl_hpm: Bit mask specifying which hardware pins should be | |
66 | * used to force the regulator into high power | |
67 | * mode, if any | |
68 | * Value should be an ORing of | |
69 | * SPMI_REGULATOR_PIN_CTRL_HPM_* constants. If | |
70 | * the bit specified by | |
71 | * SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT is | |
72 | * set, then pin control mode hardware registers | |
73 | * will not be modified. | |
74 | * @vs_soft_start_strength: This parameter sets the soft start strength for | |
75 | * voltage switch type regulators. Its value | |
76 | * should be one of SPMI_VS_SOFT_START_STR_*. If | |
77 | * its value is SPMI_VS_SOFT_START_STR_HW_DEFAULT, | |
78 | * then the soft start strength will be left at its | |
79 | * default hardware value. | |
80 | */ | |
81 | struct spmi_regulator_init_data { | |
82 | unsigned pin_ctrl_enable; | |
83 | unsigned pin_ctrl_hpm; | |
84 | enum spmi_vs_soft_start_str vs_soft_start_strength; | |
85 | }; | |
86 | ||
e92a4047 SB |
87 | /* These types correspond to unique register layouts. */ |
88 | enum spmi_regulator_logical_type { | |
89 | SPMI_REGULATOR_LOGICAL_TYPE_SMPS, | |
90 | SPMI_REGULATOR_LOGICAL_TYPE_LDO, | |
91 | SPMI_REGULATOR_LOGICAL_TYPE_VS, | |
92 | SPMI_REGULATOR_LOGICAL_TYPE_BOOST, | |
93 | SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS, | |
94 | SPMI_REGULATOR_LOGICAL_TYPE_BOOST_BYP, | |
95 | SPMI_REGULATOR_LOGICAL_TYPE_LN_LDO, | |
96 | SPMI_REGULATOR_LOGICAL_TYPE_ULT_LO_SMPS, | |
97 | SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS, | |
98 | SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO, | |
42ba89c8 | 99 | SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426, |
0211f68e | 100 | SPMI_REGULATOR_LOGICAL_TYPE_HFS430, |
e92a4047 SB |
101 | }; |
102 | ||
103 | enum spmi_regulator_type { | |
104 | SPMI_REGULATOR_TYPE_BUCK = 0x03, | |
105 | SPMI_REGULATOR_TYPE_LDO = 0x04, | |
106 | SPMI_REGULATOR_TYPE_VS = 0x05, | |
107 | SPMI_REGULATOR_TYPE_BOOST = 0x1b, | |
108 | SPMI_REGULATOR_TYPE_FTS = 0x1c, | |
109 | SPMI_REGULATOR_TYPE_BOOST_BYP = 0x1f, | |
110 | SPMI_REGULATOR_TYPE_ULT_LDO = 0x21, | |
111 | SPMI_REGULATOR_TYPE_ULT_BUCK = 0x22, | |
112 | }; | |
113 | ||
114 | enum spmi_regulator_subtype { | |
115 | SPMI_REGULATOR_SUBTYPE_GP_CTL = 0x08, | |
116 | SPMI_REGULATOR_SUBTYPE_RF_CTL = 0x09, | |
117 | SPMI_REGULATOR_SUBTYPE_N50 = 0x01, | |
118 | SPMI_REGULATOR_SUBTYPE_N150 = 0x02, | |
119 | SPMI_REGULATOR_SUBTYPE_N300 = 0x03, | |
120 | SPMI_REGULATOR_SUBTYPE_N600 = 0x04, | |
121 | SPMI_REGULATOR_SUBTYPE_N1200 = 0x05, | |
122 | SPMI_REGULATOR_SUBTYPE_N600_ST = 0x06, | |
123 | SPMI_REGULATOR_SUBTYPE_N1200_ST = 0x07, | |
124 | SPMI_REGULATOR_SUBTYPE_N900_ST = 0x14, | |
125 | SPMI_REGULATOR_SUBTYPE_N300_ST = 0x15, | |
126 | SPMI_REGULATOR_SUBTYPE_P50 = 0x08, | |
127 | SPMI_REGULATOR_SUBTYPE_P150 = 0x09, | |
128 | SPMI_REGULATOR_SUBTYPE_P300 = 0x0a, | |
129 | SPMI_REGULATOR_SUBTYPE_P600 = 0x0b, | |
130 | SPMI_REGULATOR_SUBTYPE_P1200 = 0x0c, | |
131 | SPMI_REGULATOR_SUBTYPE_LN = 0x10, | |
132 | SPMI_REGULATOR_SUBTYPE_LV_P50 = 0x28, | |
133 | SPMI_REGULATOR_SUBTYPE_LV_P150 = 0x29, | |
134 | SPMI_REGULATOR_SUBTYPE_LV_P300 = 0x2a, | |
135 | SPMI_REGULATOR_SUBTYPE_LV_P600 = 0x2b, | |
136 | SPMI_REGULATOR_SUBTYPE_LV_P1200 = 0x2c, | |
137 | SPMI_REGULATOR_SUBTYPE_LV_P450 = 0x2d, | |
138 | SPMI_REGULATOR_SUBTYPE_LV100 = 0x01, | |
139 | SPMI_REGULATOR_SUBTYPE_LV300 = 0x02, | |
140 | SPMI_REGULATOR_SUBTYPE_MV300 = 0x08, | |
141 | SPMI_REGULATOR_SUBTYPE_MV500 = 0x09, | |
142 | SPMI_REGULATOR_SUBTYPE_HDMI = 0x10, | |
143 | SPMI_REGULATOR_SUBTYPE_OTG = 0x11, | |
144 | SPMI_REGULATOR_SUBTYPE_5V_BOOST = 0x01, | |
145 | SPMI_REGULATOR_SUBTYPE_FTS_CTL = 0x08, | |
146 | SPMI_REGULATOR_SUBTYPE_FTS2p5_CTL = 0x09, | |
42ba89c8 | 147 | SPMI_REGULATOR_SUBTYPE_FTS426_CTL = 0x0a, |
e92a4047 SB |
148 | SPMI_REGULATOR_SUBTYPE_BB_2A = 0x01, |
149 | SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL1 = 0x0d, | |
150 | SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL2 = 0x0e, | |
151 | SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL3 = 0x0f, | |
152 | SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL4 = 0x10, | |
0211f68e | 153 | SPMI_REGULATOR_SUBTYPE_HFS430 = 0x0a, |
e92a4047 SB |
154 | }; |
155 | ||
156 | enum spmi_common_regulator_registers { | |
157 | SPMI_COMMON_REG_DIG_MAJOR_REV = 0x01, | |
158 | SPMI_COMMON_REG_TYPE = 0x04, | |
159 | SPMI_COMMON_REG_SUBTYPE = 0x05, | |
160 | SPMI_COMMON_REG_VOLTAGE_RANGE = 0x40, | |
161 | SPMI_COMMON_REG_VOLTAGE_SET = 0x41, | |
162 | SPMI_COMMON_REG_MODE = 0x45, | |
163 | SPMI_COMMON_REG_ENABLE = 0x46, | |
164 | SPMI_COMMON_REG_PULL_DOWN = 0x48, | |
165 | SPMI_COMMON_REG_SOFT_START = 0x4c, | |
166 | SPMI_COMMON_REG_STEP_CTRL = 0x61, | |
167 | }; | |
168 | ||
42ba89c8 JH |
169 | /* |
170 | * Second common register layout used by newer devices starting with ftsmps426 | |
171 | * Note that some of the registers from the first common layout remain | |
172 | * unchanged and their definition is not duplicated. | |
173 | */ | |
174 | enum spmi_ftsmps426_regulator_registers { | |
175 | SPMI_FTSMPS426_REG_VOLTAGE_LSB = 0x40, | |
176 | SPMI_FTSMPS426_REG_VOLTAGE_MSB = 0x41, | |
177 | SPMI_FTSMPS426_REG_VOLTAGE_ULS_LSB = 0x68, | |
178 | SPMI_FTSMPS426_REG_VOLTAGE_ULS_MSB = 0x69, | |
179 | }; | |
180 | ||
e92a4047 SB |
181 | enum spmi_vs_registers { |
182 | SPMI_VS_REG_OCP = 0x4a, | |
183 | SPMI_VS_REG_SOFT_START = 0x4c, | |
184 | }; | |
185 | ||
186 | enum spmi_boost_registers { | |
187 | SPMI_BOOST_REG_CURRENT_LIMIT = 0x4a, | |
188 | }; | |
189 | ||
190 | enum spmi_boost_byp_registers { | |
191 | SPMI_BOOST_BYP_REG_CURRENT_LIMIT = 0x4b, | |
192 | }; | |
193 | ||
0caecaa8 IL |
194 | enum spmi_saw3_registers { |
195 | SAW3_SECURE = 0x00, | |
196 | SAW3_ID = 0x04, | |
197 | SAW3_SPM_STS = 0x0C, | |
198 | SAW3_AVS_STS = 0x10, | |
199 | SAW3_PMIC_STS = 0x14, | |
200 | SAW3_RST = 0x18, | |
201 | SAW3_VCTL = 0x1C, | |
202 | SAW3_AVS_CTL = 0x20, | |
203 | SAW3_AVS_LIMIT = 0x24, | |
204 | SAW3_AVS_DLY = 0x28, | |
205 | SAW3_AVS_HYSTERESIS = 0x2C, | |
206 | SAW3_SPM_STS2 = 0x38, | |
207 | SAW3_SPM_PMIC_DATA_3 = 0x4C, | |
208 | SAW3_VERSION = 0xFD0, | |
209 | }; | |
210 | ||
e92a4047 SB |
211 | /* Used for indexing into ctrl_reg. These are offets from 0x40 */ |
212 | enum spmi_common_control_register_index { | |
213 | SPMI_COMMON_IDX_VOLTAGE_RANGE = 0, | |
214 | SPMI_COMMON_IDX_VOLTAGE_SET = 1, | |
215 | SPMI_COMMON_IDX_MODE = 5, | |
216 | SPMI_COMMON_IDX_ENABLE = 6, | |
217 | }; | |
218 | ||
219 | /* Common regulator control register layout */ | |
220 | #define SPMI_COMMON_ENABLE_MASK 0x80 | |
221 | #define SPMI_COMMON_ENABLE 0x80 | |
222 | #define SPMI_COMMON_DISABLE 0x00 | |
223 | #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN3_MASK 0x08 | |
224 | #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN2_MASK 0x04 | |
225 | #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN1_MASK 0x02 | |
226 | #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN0_MASK 0x01 | |
227 | #define SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK 0x0f | |
228 | ||
229 | /* Common regulator mode register layout */ | |
230 | #define SPMI_COMMON_MODE_HPM_MASK 0x80 | |
231 | #define SPMI_COMMON_MODE_AUTO_MASK 0x40 | |
232 | #define SPMI_COMMON_MODE_BYPASS_MASK 0x20 | |
233 | #define SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK 0x10 | |
234 | #define SPMI_COMMON_MODE_FOLLOW_HW_EN3_MASK 0x08 | |
235 | #define SPMI_COMMON_MODE_FOLLOW_HW_EN2_MASK 0x04 | |
236 | #define SPMI_COMMON_MODE_FOLLOW_HW_EN1_MASK 0x02 | |
237 | #define SPMI_COMMON_MODE_FOLLOW_HW_EN0_MASK 0x01 | |
238 | #define SPMI_COMMON_MODE_FOLLOW_ALL_MASK 0x1f | |
239 | ||
42ba89c8 JH |
240 | #define SPMI_FTSMPS426_MODE_BYPASS_MASK 3 |
241 | #define SPMI_FTSMPS426_MODE_RETENTION_MASK 4 | |
242 | #define SPMI_FTSMPS426_MODE_LPM_MASK 5 | |
243 | #define SPMI_FTSMPS426_MODE_AUTO_MASK 6 | |
244 | #define SPMI_FTSMPS426_MODE_HPM_MASK 7 | |
245 | ||
246 | #define SPMI_FTSMPS426_MODE_MASK 0x07 | |
247 | ||
e92a4047 SB |
248 | /* Common regulator pull down control register layout */ |
249 | #define SPMI_COMMON_PULL_DOWN_ENABLE_MASK 0x80 | |
250 | ||
251 | /* LDO regulator current limit control register layout */ | |
252 | #define SPMI_LDO_CURRENT_LIMIT_ENABLE_MASK 0x80 | |
253 | ||
254 | /* LDO regulator soft start control register layout */ | |
255 | #define SPMI_LDO_SOFT_START_ENABLE_MASK 0x80 | |
256 | ||
257 | /* VS regulator over current protection control register layout */ | |
258 | #define SPMI_VS_OCP_OVERRIDE 0x01 | |
259 | #define SPMI_VS_OCP_NO_OVERRIDE 0x00 | |
260 | ||
261 | /* VS regulator soft start control register layout */ | |
262 | #define SPMI_VS_SOFT_START_ENABLE_MASK 0x80 | |
263 | #define SPMI_VS_SOFT_START_SEL_MASK 0x03 | |
264 | ||
265 | /* Boost regulator current limit control register layout */ | |
266 | #define SPMI_BOOST_CURRENT_LIMIT_ENABLE_MASK 0x80 | |
267 | #define SPMI_BOOST_CURRENT_LIMIT_MASK 0x07 | |
268 | ||
269 | #define SPMI_VS_OCP_DEFAULT_MAX_RETRIES 10 | |
270 | #define SPMI_VS_OCP_DEFAULT_RETRY_DELAY_MS 30 | |
271 | #define SPMI_VS_OCP_FALL_DELAY_US 90 | |
272 | #define SPMI_VS_OCP_FAULT_DELAY_US 20000 | |
273 | ||
274 | #define SPMI_FTSMPS_STEP_CTRL_STEP_MASK 0x18 | |
275 | #define SPMI_FTSMPS_STEP_CTRL_STEP_SHIFT 3 | |
276 | #define SPMI_FTSMPS_STEP_CTRL_DELAY_MASK 0x07 | |
277 | #define SPMI_FTSMPS_STEP_CTRL_DELAY_SHIFT 0 | |
278 | ||
279 | /* Clock rate in kHz of the FTSMPS regulator reference clock. */ | |
280 | #define SPMI_FTSMPS_CLOCK_RATE 19200 | |
281 | ||
282 | /* Minimum voltage stepper delay for each step. */ | |
283 | #define SPMI_FTSMPS_STEP_DELAY 8 | |
2cf7b99c | 284 | #define SPMI_DEFAULT_STEP_DELAY 20 |
e92a4047 SB |
285 | |
286 | /* | |
287 | * The ratio SPMI_FTSMPS_STEP_MARGIN_NUM/SPMI_FTSMPS_STEP_MARGIN_DEN is used to | |
288 | * adjust the step rate in order to account for oscillator variance. | |
289 | */ | |
290 | #define SPMI_FTSMPS_STEP_MARGIN_NUM 4 | |
291 | #define SPMI_FTSMPS_STEP_MARGIN_DEN 5 | |
292 | ||
42ba89c8 JH |
293 | #define SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK 0x03 |
294 | #define SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT 0 | |
295 | ||
296 | /* Clock rate in kHz of the FTSMPS426 regulator reference clock. */ | |
297 | #define SPMI_FTSMPS426_CLOCK_RATE 4800 | |
298 | ||
0211f68e JR |
299 | #define SPMI_HFS430_CLOCK_RATE 1600 |
300 | ||
42ba89c8 JH |
301 | /* Minimum voltage stepper delay for each step. */ |
302 | #define SPMI_FTSMPS426_STEP_DELAY 2 | |
303 | ||
304 | /* | |
305 | * The ratio SPMI_FTSMPS426_STEP_MARGIN_NUM/SPMI_FTSMPS426_STEP_MARGIN_DEN is | |
306 | * used to adjust the step rate in order to account for oscillator variance. | |
307 | */ | |
308 | #define SPMI_FTSMPS426_STEP_MARGIN_NUM 10 | |
309 | #define SPMI_FTSMPS426_STEP_MARGIN_DEN 11 | |
310 | ||
311 | ||
e92a4047 SB |
312 | /* VSET value to decide the range of ULT SMPS */ |
313 | #define ULT_SMPS_RANGE_SPLIT 0x60 | |
314 | ||
315 | /** | |
316 | * struct spmi_voltage_range - regulator set point voltage mapping description | |
317 | * @min_uV: Minimum programmable output voltage resulting from | |
318 | * set point register value 0x00 | |
319 | * @max_uV: Maximum programmable output voltage | |
320 | * @step_uV: Output voltage increase resulting from the set point | |
321 | * register value increasing by 1 | |
322 | * @set_point_min_uV: Minimum allowed voltage | |
323 | * @set_point_max_uV: Maximum allowed voltage. This may be tweaked in order | |
324 | * to pick which range should be used in the case of | |
325 | * overlapping set points. | |
326 | * @n_voltages: Number of preferred voltage set points present in this | |
327 | * range | |
328 | * @range_sel: Voltage range register value corresponding to this range | |
329 | * | |
330 | * The following relationships must be true for the values used in this struct: | |
331 | * (max_uV - min_uV) % step_uV == 0 | |
332 | * (set_point_min_uV - min_uV) % step_uV == 0* | |
333 | * (set_point_max_uV - min_uV) % step_uV == 0* | |
334 | * n_voltages = (set_point_max_uV - set_point_min_uV) / step_uV + 1 | |
335 | * | |
336 | * *Note, set_point_min_uV == set_point_max_uV == 0 is allowed in order to | |
337 | * specify that the voltage range has meaning, but is not preferred. | |
338 | */ | |
339 | struct spmi_voltage_range { | |
340 | int min_uV; | |
341 | int max_uV; | |
342 | int step_uV; | |
343 | int set_point_min_uV; | |
344 | int set_point_max_uV; | |
345 | unsigned n_voltages; | |
346 | u8 range_sel; | |
347 | }; | |
348 | ||
349 | /* | |
350 | * The ranges specified in the spmi_voltage_set_points struct must be listed | |
351 | * so that range[i].set_point_max_uV < range[i+1].set_point_min_uV. | |
352 | */ | |
353 | struct spmi_voltage_set_points { | |
354 | struct spmi_voltage_range *range; | |
355 | int count; | |
356 | unsigned n_voltages; | |
357 | }; | |
358 | ||
359 | struct spmi_regulator { | |
360 | struct regulator_desc desc; | |
361 | struct device *dev; | |
362 | struct delayed_work ocp_work; | |
363 | struct regmap *regmap; | |
364 | struct spmi_voltage_set_points *set_points; | |
365 | enum spmi_regulator_logical_type logical_type; | |
366 | int ocp_irq; | |
367 | int ocp_count; | |
368 | int ocp_max_retries; | |
369 | int ocp_retry_delay_ms; | |
370 | int hpm_min_load; | |
371 | int slew_rate; | |
372 | ktime_t vs_enable_time; | |
373 | u16 base; | |
374 | struct list_head node; | |
375 | }; | |
376 | ||
377 | struct spmi_regulator_mapping { | |
378 | enum spmi_regulator_type type; | |
379 | enum spmi_regulator_subtype subtype; | |
380 | enum spmi_regulator_logical_type logical_type; | |
381 | u32 revision_min; | |
382 | u32 revision_max; | |
383 | struct regulator_ops *ops; | |
384 | struct spmi_voltage_set_points *set_points; | |
385 | int hpm_min_load; | |
386 | }; | |
387 | ||
388 | struct spmi_regulator_data { | |
389 | const char *name; | |
390 | u16 base; | |
391 | const char *supply; | |
392 | const char *ocp; | |
393 | u16 force_type; | |
394 | }; | |
395 | ||
396 | #define SPMI_VREG(_type, _subtype, _dig_major_min, _dig_major_max, \ | |
397 | _logical_type, _ops_val, _set_points_val, _hpm_min_load) \ | |
398 | { \ | |
399 | .type = SPMI_REGULATOR_TYPE_##_type, \ | |
400 | .subtype = SPMI_REGULATOR_SUBTYPE_##_subtype, \ | |
401 | .revision_min = _dig_major_min, \ | |
402 | .revision_max = _dig_major_max, \ | |
403 | .logical_type = SPMI_REGULATOR_LOGICAL_TYPE_##_logical_type, \ | |
404 | .ops = &spmi_##_ops_val##_ops, \ | |
405 | .set_points = &_set_points_val##_set_points, \ | |
406 | .hpm_min_load = _hpm_min_load, \ | |
407 | } | |
408 | ||
409 | #define SPMI_VREG_VS(_subtype, _dig_major_min, _dig_major_max) \ | |
410 | { \ | |
411 | .type = SPMI_REGULATOR_TYPE_VS, \ | |
412 | .subtype = SPMI_REGULATOR_SUBTYPE_##_subtype, \ | |
413 | .revision_min = _dig_major_min, \ | |
414 | .revision_max = _dig_major_max, \ | |
415 | .logical_type = SPMI_REGULATOR_LOGICAL_TYPE_VS, \ | |
416 | .ops = &spmi_vs_ops, \ | |
417 | } | |
418 | ||
419 | #define SPMI_VOLTAGE_RANGE(_range_sel, _min_uV, _set_point_min_uV, \ | |
420 | _set_point_max_uV, _max_uV, _step_uV) \ | |
421 | { \ | |
422 | .min_uV = _min_uV, \ | |
423 | .max_uV = _max_uV, \ | |
424 | .set_point_min_uV = _set_point_min_uV, \ | |
425 | .set_point_max_uV = _set_point_max_uV, \ | |
426 | .step_uV = _step_uV, \ | |
427 | .range_sel = _range_sel, \ | |
428 | } | |
429 | ||
430 | #define DEFINE_SPMI_SET_POINTS(name) \ | |
431 | struct spmi_voltage_set_points name##_set_points = { \ | |
432 | .range = name##_ranges, \ | |
433 | .count = ARRAY_SIZE(name##_ranges), \ | |
434 | } | |
435 | ||
436 | /* | |
437 | * These tables contain the physically available PMIC regulator voltage setpoint | |
438 | * ranges. Where two ranges overlap in hardware, one of the ranges is trimmed | |
439 | * to ensure that the setpoints available to software are monotonically | |
440 | * increasing and unique. The set_voltage callback functions expect these | |
441 | * properties to hold. | |
442 | */ | |
443 | static struct spmi_voltage_range pldo_ranges[] = { | |
444 | SPMI_VOLTAGE_RANGE(2, 750000, 750000, 1537500, 1537500, 12500), | |
445 | SPMI_VOLTAGE_RANGE(3, 1500000, 1550000, 3075000, 3075000, 25000), | |
446 | SPMI_VOLTAGE_RANGE(4, 1750000, 3100000, 4900000, 4900000, 50000), | |
447 | }; | |
448 | ||
449 | static struct spmi_voltage_range nldo1_ranges[] = { | |
450 | SPMI_VOLTAGE_RANGE(2, 750000, 750000, 1537500, 1537500, 12500), | |
451 | }; | |
452 | ||
453 | static struct spmi_voltage_range nldo2_ranges[] = { | |
454 | SPMI_VOLTAGE_RANGE(0, 375000, 0, 0, 1537500, 12500), | |
455 | SPMI_VOLTAGE_RANGE(1, 375000, 375000, 768750, 768750, 6250), | |
456 | SPMI_VOLTAGE_RANGE(2, 750000, 775000, 1537500, 1537500, 12500), | |
457 | }; | |
458 | ||
459 | static struct spmi_voltage_range nldo3_ranges[] = { | |
460 | SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1537500, 1537500, 12500), | |
461 | SPMI_VOLTAGE_RANGE(1, 375000, 0, 0, 1537500, 12500), | |
462 | SPMI_VOLTAGE_RANGE(2, 750000, 0, 0, 1537500, 12500), | |
463 | }; | |
464 | ||
465 | static struct spmi_voltage_range ln_ldo_ranges[] = { | |
466 | SPMI_VOLTAGE_RANGE(1, 690000, 690000, 1110000, 1110000, 60000), | |
467 | SPMI_VOLTAGE_RANGE(0, 1380000, 1380000, 2220000, 2220000, 120000), | |
468 | }; | |
469 | ||
470 | static struct spmi_voltage_range smps_ranges[] = { | |
471 | SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1562500, 1562500, 12500), | |
472 | SPMI_VOLTAGE_RANGE(1, 1550000, 1575000, 3125000, 3125000, 25000), | |
473 | }; | |
474 | ||
475 | static struct spmi_voltage_range ftsmps_ranges[] = { | |
476 | SPMI_VOLTAGE_RANGE(0, 0, 350000, 1275000, 1275000, 5000), | |
477 | SPMI_VOLTAGE_RANGE(1, 0, 1280000, 2040000, 2040000, 10000), | |
478 | }; | |
479 | ||
480 | static struct spmi_voltage_range ftsmps2p5_ranges[] = { | |
481 | SPMI_VOLTAGE_RANGE(0, 80000, 350000, 1355000, 1355000, 5000), | |
482 | SPMI_VOLTAGE_RANGE(1, 160000, 1360000, 2200000, 2200000, 10000), | |
483 | }; | |
484 | ||
42ba89c8 JH |
485 | static struct spmi_voltage_range ftsmps426_ranges[] = { |
486 | SPMI_VOLTAGE_RANGE(0, 0, 320000, 1352000, 1352000, 4000), | |
487 | }; | |
488 | ||
e92a4047 SB |
489 | static struct spmi_voltage_range boost_ranges[] = { |
490 | SPMI_VOLTAGE_RANGE(0, 4000000, 4000000, 5550000, 5550000, 50000), | |
491 | }; | |
492 | ||
493 | static struct spmi_voltage_range boost_byp_ranges[] = { | |
494 | SPMI_VOLTAGE_RANGE(0, 2500000, 2500000, 5200000, 5650000, 50000), | |
495 | }; | |
496 | ||
497 | static struct spmi_voltage_range ult_lo_smps_ranges[] = { | |
498 | SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1562500, 1562500, 12500), | |
499 | SPMI_VOLTAGE_RANGE(1, 750000, 0, 0, 1525000, 25000), | |
500 | }; | |
501 | ||
502 | static struct spmi_voltage_range ult_ho_smps_ranges[] = { | |
503 | SPMI_VOLTAGE_RANGE(0, 1550000, 1550000, 2325000, 2325000, 25000), | |
504 | }; | |
505 | ||
506 | static struct spmi_voltage_range ult_nldo_ranges[] = { | |
507 | SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1537500, 1537500, 12500), | |
508 | }; | |
509 | ||
510 | static struct spmi_voltage_range ult_pldo_ranges[] = { | |
511 | SPMI_VOLTAGE_RANGE(0, 1750000, 1750000, 3337500, 3337500, 12500), | |
512 | }; | |
513 | ||
0211f68e JR |
514 | static struct spmi_voltage_range hfs430_ranges[] = { |
515 | SPMI_VOLTAGE_RANGE(0, 320000, 320000, 2040000, 2040000, 8000), | |
516 | }; | |
517 | ||
e92a4047 SB |
518 | static DEFINE_SPMI_SET_POINTS(pldo); |
519 | static DEFINE_SPMI_SET_POINTS(nldo1); | |
520 | static DEFINE_SPMI_SET_POINTS(nldo2); | |
521 | static DEFINE_SPMI_SET_POINTS(nldo3); | |
522 | static DEFINE_SPMI_SET_POINTS(ln_ldo); | |
523 | static DEFINE_SPMI_SET_POINTS(smps); | |
524 | static DEFINE_SPMI_SET_POINTS(ftsmps); | |
525 | static DEFINE_SPMI_SET_POINTS(ftsmps2p5); | |
42ba89c8 | 526 | static DEFINE_SPMI_SET_POINTS(ftsmps426); |
e92a4047 SB |
527 | static DEFINE_SPMI_SET_POINTS(boost); |
528 | static DEFINE_SPMI_SET_POINTS(boost_byp); | |
529 | static DEFINE_SPMI_SET_POINTS(ult_lo_smps); | |
530 | static DEFINE_SPMI_SET_POINTS(ult_ho_smps); | |
531 | static DEFINE_SPMI_SET_POINTS(ult_nldo); | |
532 | static DEFINE_SPMI_SET_POINTS(ult_pldo); | |
0211f68e | 533 | static DEFINE_SPMI_SET_POINTS(hfs430); |
e92a4047 SB |
534 | |
535 | static inline int spmi_vreg_read(struct spmi_regulator *vreg, u16 addr, u8 *buf, | |
536 | int len) | |
537 | { | |
538 | return regmap_bulk_read(vreg->regmap, vreg->base + addr, buf, len); | |
539 | } | |
540 | ||
541 | static inline int spmi_vreg_write(struct spmi_regulator *vreg, u16 addr, | |
542 | u8 *buf, int len) | |
543 | { | |
544 | return regmap_bulk_write(vreg->regmap, vreg->base + addr, buf, len); | |
545 | } | |
546 | ||
547 | static int spmi_vreg_update_bits(struct spmi_regulator *vreg, u16 addr, u8 val, | |
548 | u8 mask) | |
549 | { | |
550 | return regmap_update_bits(vreg->regmap, vreg->base + addr, mask, val); | |
551 | } | |
552 | ||
e92a4047 SB |
553 | static int spmi_regulator_vs_enable(struct regulator_dev *rdev) |
554 | { | |
555 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
556 | ||
557 | if (vreg->ocp_irq) { | |
558 | vreg->ocp_count = 0; | |
559 | vreg->vs_enable_time = ktime_get(); | |
560 | } | |
561 | ||
9d485332 | 562 | return regulator_enable_regmap(rdev); |
e92a4047 SB |
563 | } |
564 | ||
e2adfacd SB |
565 | static int spmi_regulator_vs_ocp(struct regulator_dev *rdev) |
566 | { | |
567 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
568 | u8 reg = SPMI_VS_OCP_OVERRIDE; | |
569 | ||
570 | return spmi_vreg_write(vreg, SPMI_VS_REG_OCP, ®, 1); | |
571 | } | |
572 | ||
e92a4047 | 573 | static int spmi_regulator_select_voltage(struct spmi_regulator *vreg, |
1b5b1968 | 574 | int min_uV, int max_uV) |
e92a4047 SB |
575 | { |
576 | const struct spmi_voltage_range *range; | |
577 | int uV = min_uV; | |
578 | int lim_min_uV, lim_max_uV, i, range_id, range_max_uV; | |
1b5b1968 | 579 | int selector, voltage_sel; |
e92a4047 SB |
580 | |
581 | /* Check if request voltage is outside of physically settable range. */ | |
582 | lim_min_uV = vreg->set_points->range[0].set_point_min_uV; | |
583 | lim_max_uV = | |
584 | vreg->set_points->range[vreg->set_points->count - 1].set_point_max_uV; | |
585 | ||
586 | if (uV < lim_min_uV && max_uV >= lim_min_uV) | |
587 | uV = lim_min_uV; | |
588 | ||
589 | if (uV < lim_min_uV || uV > lim_max_uV) { | |
590 | dev_err(vreg->dev, | |
591 | "request v=[%d, %d] is outside possible v=[%d, %d]\n", | |
592 | min_uV, max_uV, lim_min_uV, lim_max_uV); | |
593 | return -EINVAL; | |
594 | } | |
595 | ||
596 | /* Find the range which uV is inside of. */ | |
597 | for (i = vreg->set_points->count - 1; i > 0; i--) { | |
598 | range_max_uV = vreg->set_points->range[i - 1].set_point_max_uV; | |
599 | if (uV > range_max_uV && range_max_uV > 0) | |
600 | break; | |
601 | } | |
602 | ||
603 | range_id = i; | |
604 | range = &vreg->set_points->range[range_id]; | |
e92a4047 SB |
605 | |
606 | /* | |
607 | * Force uV to be an allowed set point by applying a ceiling function to | |
608 | * the uV value. | |
609 | */ | |
1b5b1968 SB |
610 | voltage_sel = DIV_ROUND_UP(uV - range->min_uV, range->step_uV); |
611 | uV = voltage_sel * range->step_uV + range->min_uV; | |
e92a4047 SB |
612 | |
613 | if (uV > max_uV) { | |
614 | dev_err(vreg->dev, | |
615 | "request v=[%d, %d] cannot be met by any set point; " | |
616 | "next set point: %d\n", | |
617 | min_uV, max_uV, uV); | |
618 | return -EINVAL; | |
619 | } | |
620 | ||
1b5b1968 | 621 | selector = 0; |
e92a4047 | 622 | for (i = 0; i < range_id; i++) |
1b5b1968 SB |
623 | selector += vreg->set_points->range[i].n_voltages; |
624 | selector += (uV - range->set_point_min_uV) / range->step_uV; | |
e92a4047 | 625 | |
1b5b1968 SB |
626 | return selector; |
627 | } | |
628 | ||
629 | static int spmi_sw_selector_to_hw(struct spmi_regulator *vreg, | |
630 | unsigned selector, u8 *range_sel, | |
631 | u8 *voltage_sel) | |
632 | { | |
633 | const struct spmi_voltage_range *range, *end; | |
ab953b9d | 634 | unsigned offset; |
1b5b1968 SB |
635 | |
636 | range = vreg->set_points->range; | |
637 | end = range + vreg->set_points->count; | |
638 | ||
639 | for (; range < end; range++) { | |
640 | if (selector < range->n_voltages) { | |
ab953b9d SB |
641 | /* |
642 | * hardware selectors between set point min and real | |
643 | * min are invalid so we ignore them | |
644 | */ | |
645 | offset = range->set_point_min_uV - range->min_uV; | |
646 | offset /= range->step_uV; | |
647 | *voltage_sel = selector + offset; | |
1b5b1968 SB |
648 | *range_sel = range->range_sel; |
649 | return 0; | |
650 | } | |
651 | ||
652 | selector -= range->n_voltages; | |
653 | } | |
654 | ||
655 | return -EINVAL; | |
656 | } | |
657 | ||
658 | static int spmi_hw_selector_to_sw(struct spmi_regulator *vreg, u8 hw_sel, | |
659 | const struct spmi_voltage_range *range) | |
660 | { | |
ab953b9d SB |
661 | unsigned sw_sel = 0; |
662 | unsigned offset, max_hw_sel; | |
1b5b1968 | 663 | const struct spmi_voltage_range *r = vreg->set_points->range; |
ab953b9d SB |
664 | const struct spmi_voltage_range *end = r + vreg->set_points->count; |
665 | ||
666 | for (; r < end; r++) { | |
667 | if (r == range && range->n_voltages) { | |
668 | /* | |
669 | * hardware selectors between set point min and real | |
670 | * min and between set point max and real max are | |
671 | * invalid so we return an error if they're | |
672 | * programmed into the hardware | |
673 | */ | |
674 | offset = range->set_point_min_uV - range->min_uV; | |
675 | offset /= range->step_uV; | |
676 | if (hw_sel < offset) | |
677 | return -EINVAL; | |
678 | ||
679 | max_hw_sel = range->set_point_max_uV - range->min_uV; | |
680 | max_hw_sel /= range->step_uV; | |
681 | if (hw_sel > max_hw_sel) | |
682 | return -EINVAL; | |
683 | ||
684 | return sw_sel + hw_sel - offset; | |
685 | } | |
1b5b1968 | 686 | sw_sel += r->n_voltages; |
1b5b1968 SB |
687 | } |
688 | ||
ab953b9d | 689 | return -EINVAL; |
e92a4047 SB |
690 | } |
691 | ||
692 | static const struct spmi_voltage_range * | |
693 | spmi_regulator_find_range(struct spmi_regulator *vreg) | |
694 | { | |
695 | u8 range_sel; | |
696 | const struct spmi_voltage_range *range, *end; | |
697 | ||
698 | range = vreg->set_points->range; | |
699 | end = range + vreg->set_points->count; | |
700 | ||
701 | spmi_vreg_read(vreg, SPMI_COMMON_REG_VOLTAGE_RANGE, &range_sel, 1); | |
702 | ||
703 | for (; range < end; range++) | |
704 | if (range->range_sel == range_sel) | |
705 | return range; | |
706 | ||
707 | return NULL; | |
708 | } | |
709 | ||
710 | static int spmi_regulator_select_voltage_same_range(struct spmi_regulator *vreg, | |
1b5b1968 | 711 | int min_uV, int max_uV) |
e92a4047 SB |
712 | { |
713 | const struct spmi_voltage_range *range; | |
714 | int uV = min_uV; | |
1b5b1968 | 715 | int i, selector; |
e92a4047 SB |
716 | |
717 | range = spmi_regulator_find_range(vreg); | |
718 | if (!range) | |
719 | goto different_range; | |
720 | ||
721 | if (uV < range->min_uV && max_uV >= range->min_uV) | |
722 | uV = range->min_uV; | |
723 | ||
724 | if (uV < range->min_uV || uV > range->max_uV) { | |
725 | /* Current range doesn't support the requested voltage. */ | |
726 | goto different_range; | |
727 | } | |
728 | ||
729 | /* | |
730 | * Force uV to be an allowed set point by applying a ceiling function to | |
731 | * the uV value. | |
732 | */ | |
1b5b1968 SB |
733 | uV = DIV_ROUND_UP(uV - range->min_uV, range->step_uV); |
734 | uV = uV * range->step_uV + range->min_uV; | |
e92a4047 SB |
735 | |
736 | if (uV > max_uV) { | |
737 | /* | |
738 | * No set point in the current voltage range is within the | |
739 | * requested min_uV to max_uV range. | |
740 | */ | |
741 | goto different_range; | |
742 | } | |
743 | ||
1b5b1968 | 744 | selector = 0; |
e92a4047 SB |
745 | for (i = 0; i < vreg->set_points->count; i++) { |
746 | if (uV >= vreg->set_points->range[i].set_point_min_uV | |
9b2dfee3 | 747 | && uV <= vreg->set_points->range[i].set_point_max_uV) { |
1b5b1968 | 748 | selector += |
e92a4047 SB |
749 | (uV - vreg->set_points->range[i].set_point_min_uV) |
750 | / vreg->set_points->range[i].step_uV; | |
751 | break; | |
9b2dfee3 | 752 | } |
e92a4047 | 753 | |
1b5b1968 | 754 | selector += vreg->set_points->range[i].n_voltages; |
e92a4047 SB |
755 | } |
756 | ||
1b5b1968 | 757 | if (selector >= vreg->set_points->n_voltages) |
e92a4047 SB |
758 | goto different_range; |
759 | ||
b1d21a24 | 760 | return selector; |
e92a4047 SB |
761 | |
762 | different_range: | |
1b5b1968 | 763 | return spmi_regulator_select_voltage(vreg, min_uV, max_uV); |
e92a4047 SB |
764 | } |
765 | ||
1b5b1968 SB |
766 | static int spmi_regulator_common_map_voltage(struct regulator_dev *rdev, |
767 | int min_uV, int max_uV) | |
e92a4047 SB |
768 | { |
769 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
e92a4047 SB |
770 | |
771 | /* | |
772 | * Favor staying in the current voltage range if possible. This avoids | |
773 | * voltage spikes that occur when changing the voltage range. | |
774 | */ | |
1b5b1968 SB |
775 | return spmi_regulator_select_voltage_same_range(vreg, min_uV, max_uV); |
776 | } | |
777 | ||
778 | static int | |
779 | spmi_regulator_common_set_voltage(struct regulator_dev *rdev, unsigned selector) | |
780 | { | |
781 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
782 | int ret; | |
783 | u8 buf[2]; | |
784 | u8 range_sel, voltage_sel; | |
785 | ||
786 | ret = spmi_sw_selector_to_hw(vreg, selector, &range_sel, &voltage_sel); | |
e92a4047 SB |
787 | if (ret) |
788 | return ret; | |
789 | ||
790 | buf[0] = range_sel; | |
791 | buf[1] = voltage_sel; | |
792 | return spmi_vreg_write(vreg, SPMI_COMMON_REG_VOLTAGE_RANGE, buf, 2); | |
793 | } | |
794 | ||
42ba89c8 JH |
795 | static int spmi_regulator_common_list_voltage(struct regulator_dev *rdev, |
796 | unsigned selector); | |
797 | ||
798 | static int spmi_regulator_ftsmps426_set_voltage(struct regulator_dev *rdev, | |
799 | unsigned selector) | |
800 | { | |
801 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
802 | u8 buf[2]; | |
803 | int mV; | |
804 | ||
805 | mV = spmi_regulator_common_list_voltage(rdev, selector) / 1000; | |
806 | ||
807 | buf[0] = mV & 0xff; | |
808 | buf[1] = mV >> 8; | |
809 | return spmi_vreg_write(vreg, SPMI_FTSMPS426_REG_VOLTAGE_LSB, buf, 2); | |
810 | } | |
811 | ||
e92a4047 SB |
812 | static int spmi_regulator_set_voltage_time_sel(struct regulator_dev *rdev, |
813 | unsigned int old_selector, unsigned int new_selector) | |
814 | { | |
815 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
e92a4047 SB |
816 | int diff_uV; |
817 | ||
61d7fdc4 JH |
818 | diff_uV = abs(spmi_regulator_common_list_voltage(rdev, new_selector) - |
819 | spmi_regulator_common_list_voltage(rdev, old_selector)); | |
e92a4047 SB |
820 | |
821 | return DIV_ROUND_UP(diff_uV, vreg->slew_rate); | |
822 | } | |
823 | ||
824 | static int spmi_regulator_common_get_voltage(struct regulator_dev *rdev) | |
825 | { | |
826 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
827 | const struct spmi_voltage_range *range; | |
828 | u8 voltage_sel; | |
829 | ||
830 | spmi_vreg_read(vreg, SPMI_COMMON_REG_VOLTAGE_SET, &voltage_sel, 1); | |
831 | ||
832 | range = spmi_regulator_find_range(vreg); | |
833 | if (!range) | |
1b5b1968 | 834 | return -EINVAL; |
e92a4047 | 835 | |
1b5b1968 | 836 | return spmi_hw_selector_to_sw(vreg, voltage_sel, range); |
e92a4047 SB |
837 | } |
838 | ||
42ba89c8 JH |
839 | static int spmi_regulator_ftsmps426_get_voltage(struct regulator_dev *rdev) |
840 | { | |
841 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
842 | const struct spmi_voltage_range *range; | |
843 | u8 buf[2]; | |
844 | int uV; | |
845 | ||
846 | spmi_vreg_read(vreg, SPMI_FTSMPS426_REG_VOLTAGE_LSB, buf, 2); | |
847 | ||
848 | uV = (((unsigned int)buf[1] << 8) | (unsigned int)buf[0]) * 1000; | |
849 | range = vreg->set_points->range; | |
850 | ||
851 | return (uV - range->set_point_min_uV) / range->step_uV; | |
852 | } | |
853 | ||
1b5b1968 SB |
854 | static int spmi_regulator_single_map_voltage(struct regulator_dev *rdev, |
855 | int min_uV, int max_uV) | |
e92a4047 SB |
856 | { |
857 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
e92a4047 | 858 | |
1b5b1968 SB |
859 | return spmi_regulator_select_voltage(vreg, min_uV, max_uV); |
860 | } | |
861 | ||
862 | static int spmi_regulator_single_range_set_voltage(struct regulator_dev *rdev, | |
863 | unsigned selector) | |
864 | { | |
865 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
866 | u8 sel = selector; | |
e92a4047 SB |
867 | |
868 | /* | |
869 | * Certain types of regulators do not have a range select register so | |
870 | * only voltage set register needs to be written. | |
871 | */ | |
872 | return spmi_vreg_write(vreg, SPMI_COMMON_REG_VOLTAGE_SET, &sel, 1); | |
873 | } | |
874 | ||
875 | static int spmi_regulator_single_range_get_voltage(struct regulator_dev *rdev) | |
876 | { | |
877 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1b5b1968 SB |
878 | u8 selector; |
879 | int ret; | |
e92a4047 | 880 | |
1b5b1968 SB |
881 | ret = spmi_vreg_read(vreg, SPMI_COMMON_REG_VOLTAGE_SET, &selector, 1); |
882 | if (ret) | |
883 | return ret; | |
e92a4047 | 884 | |
1b5b1968 | 885 | return selector; |
e92a4047 SB |
886 | } |
887 | ||
888 | static int spmi_regulator_ult_lo_smps_set_voltage(struct regulator_dev *rdev, | |
1b5b1968 | 889 | unsigned selector) |
e92a4047 SB |
890 | { |
891 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
892 | int ret; | |
893 | u8 range_sel, voltage_sel; | |
894 | ||
1b5b1968 | 895 | ret = spmi_sw_selector_to_hw(vreg, selector, &range_sel, &voltage_sel); |
e92a4047 SB |
896 | if (ret) |
897 | return ret; | |
898 | ||
899 | /* | |
900 | * Calculate VSET based on range | |
901 | * In case of range 0: voltage_sel is a 7 bit value, can be written | |
902 | * witout any modification. | |
903 | * In case of range 1: voltage_sel is a 5 bit value, bits[7-5] set to | |
904 | * [011]. | |
905 | */ | |
906 | if (range_sel == 1) | |
907 | voltage_sel |= ULT_SMPS_RANGE_SPLIT; | |
908 | ||
0f94bffa | 909 | return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_VOLTAGE_SET, |
1b5b1968 | 910 | voltage_sel, 0xff); |
e92a4047 SB |
911 | } |
912 | ||
913 | static int spmi_regulator_ult_lo_smps_get_voltage(struct regulator_dev *rdev) | |
914 | { | |
915 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
916 | const struct spmi_voltage_range *range; | |
917 | u8 voltage_sel; | |
918 | ||
919 | spmi_vreg_read(vreg, SPMI_COMMON_REG_VOLTAGE_SET, &voltage_sel, 1); | |
920 | ||
921 | range = spmi_regulator_find_range(vreg); | |
922 | if (!range) | |
1b5b1968 | 923 | return -EINVAL; |
e92a4047 SB |
924 | |
925 | if (range->range_sel == 1) | |
926 | voltage_sel &= ~ULT_SMPS_RANGE_SPLIT; | |
927 | ||
1b5b1968 | 928 | return spmi_hw_selector_to_sw(vreg, voltage_sel, range); |
e92a4047 SB |
929 | } |
930 | ||
931 | static int spmi_regulator_common_list_voltage(struct regulator_dev *rdev, | |
932 | unsigned selector) | |
933 | { | |
934 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
935 | int uV = 0; | |
936 | int i; | |
937 | ||
938 | if (selector >= vreg->set_points->n_voltages) | |
939 | return 0; | |
940 | ||
941 | for (i = 0; i < vreg->set_points->count; i++) { | |
9b2dfee3 | 942 | if (selector < vreg->set_points->range[i].n_voltages) { |
e92a4047 SB |
943 | uV = selector * vreg->set_points->range[i].step_uV |
944 | + vreg->set_points->range[i].set_point_min_uV; | |
945 | break; | |
9b2dfee3 | 946 | } |
e92a4047 SB |
947 | |
948 | selector -= vreg->set_points->range[i].n_voltages; | |
949 | } | |
950 | ||
951 | return uV; | |
952 | } | |
953 | ||
954 | static int | |
955 | spmi_regulator_common_set_bypass(struct regulator_dev *rdev, bool enable) | |
956 | { | |
957 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
958 | u8 mask = SPMI_COMMON_MODE_BYPASS_MASK; | |
959 | u8 val = 0; | |
960 | ||
961 | if (enable) | |
962 | val = mask; | |
963 | ||
964 | return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask); | |
965 | } | |
966 | ||
967 | static int | |
968 | spmi_regulator_common_get_bypass(struct regulator_dev *rdev, bool *enable) | |
969 | { | |
970 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
971 | u8 val; | |
972 | int ret; | |
973 | ||
974 | ret = spmi_vreg_read(vreg, SPMI_COMMON_REG_MODE, &val, 1); | |
975 | *enable = val & SPMI_COMMON_MODE_BYPASS_MASK; | |
976 | ||
977 | return ret; | |
978 | } | |
979 | ||
980 | static unsigned int spmi_regulator_common_get_mode(struct regulator_dev *rdev) | |
981 | { | |
982 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
983 | u8 reg; | |
984 | ||
985 | spmi_vreg_read(vreg, SPMI_COMMON_REG_MODE, ®, 1); | |
986 | ||
ba576a62 | 987 | reg &= SPMI_COMMON_MODE_HPM_MASK | SPMI_COMMON_MODE_AUTO_MASK; |
e92a4047 | 988 | |
ba576a62 JH |
989 | switch (reg) { |
990 | case SPMI_COMMON_MODE_HPM_MASK: | |
991 | return REGULATOR_MODE_NORMAL; | |
992 | case SPMI_COMMON_MODE_AUTO_MASK: | |
e2adfacd | 993 | return REGULATOR_MODE_FAST; |
ba576a62 JH |
994 | default: |
995 | return REGULATOR_MODE_IDLE; | |
996 | } | |
e92a4047 SB |
997 | } |
998 | ||
42ba89c8 JH |
999 | static unsigned int spmi_regulator_ftsmps426_get_mode(struct regulator_dev *rdev) |
1000 | { | |
1001 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1002 | u8 reg; | |
1003 | ||
1004 | spmi_vreg_read(vreg, SPMI_COMMON_REG_MODE, ®, 1); | |
1005 | ||
1006 | switch (reg) { | |
1007 | case SPMI_FTSMPS426_MODE_HPM_MASK: | |
1008 | return REGULATOR_MODE_NORMAL; | |
1009 | case SPMI_FTSMPS426_MODE_AUTO_MASK: | |
1010 | return REGULATOR_MODE_FAST; | |
1011 | default: | |
1012 | return REGULATOR_MODE_IDLE; | |
1013 | } | |
1014 | } | |
1015 | ||
e92a4047 SB |
1016 | static int |
1017 | spmi_regulator_common_set_mode(struct regulator_dev *rdev, unsigned int mode) | |
1018 | { | |
1019 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
e2adfacd | 1020 | u8 mask = SPMI_COMMON_MODE_HPM_MASK | SPMI_COMMON_MODE_AUTO_MASK; |
ba576a62 | 1021 | u8 val; |
e92a4047 | 1022 | |
ba576a62 JH |
1023 | switch (mode) { |
1024 | case REGULATOR_MODE_NORMAL: | |
e2adfacd | 1025 | val = SPMI_COMMON_MODE_HPM_MASK; |
ba576a62 JH |
1026 | break; |
1027 | case REGULATOR_MODE_FAST: | |
e2adfacd | 1028 | val = SPMI_COMMON_MODE_AUTO_MASK; |
ba576a62 JH |
1029 | break; |
1030 | default: | |
1031 | val = 0; | |
1032 | break; | |
1033 | } | |
e92a4047 SB |
1034 | |
1035 | return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask); | |
1036 | } | |
1037 | ||
42ba89c8 JH |
1038 | static int |
1039 | spmi_regulator_ftsmps426_set_mode(struct regulator_dev *rdev, unsigned int mode) | |
1040 | { | |
1041 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1042 | u8 mask = SPMI_FTSMPS426_MODE_MASK; | |
1043 | u8 val; | |
1044 | ||
1045 | switch (mode) { | |
1046 | case REGULATOR_MODE_NORMAL: | |
1047 | val = SPMI_FTSMPS426_MODE_HPM_MASK; | |
1048 | break; | |
1049 | case REGULATOR_MODE_FAST: | |
1050 | val = SPMI_FTSMPS426_MODE_AUTO_MASK; | |
1051 | break; | |
1052 | case REGULATOR_MODE_IDLE: | |
1053 | val = SPMI_FTSMPS426_MODE_LPM_MASK; | |
1054 | break; | |
1055 | default: | |
1056 | return -EINVAL; | |
1057 | } | |
1058 | ||
1059 | return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_MODE, val, mask); | |
1060 | } | |
1061 | ||
e92a4047 SB |
1062 | static int |
1063 | spmi_regulator_common_set_load(struct regulator_dev *rdev, int load_uA) | |
1064 | { | |
1065 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1066 | unsigned int mode; | |
1067 | ||
1068 | if (load_uA >= vreg->hpm_min_load) | |
1069 | mode = REGULATOR_MODE_NORMAL; | |
1070 | else | |
1071 | mode = REGULATOR_MODE_IDLE; | |
1072 | ||
1073 | return spmi_regulator_common_set_mode(rdev, mode); | |
1074 | } | |
1075 | ||
1076 | static int spmi_regulator_common_set_pull_down(struct regulator_dev *rdev) | |
1077 | { | |
1078 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1079 | unsigned int mask = SPMI_COMMON_PULL_DOWN_ENABLE_MASK; | |
1080 | ||
1081 | return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_PULL_DOWN, | |
1082 | mask, mask); | |
1083 | } | |
1084 | ||
1085 | static int spmi_regulator_common_set_soft_start(struct regulator_dev *rdev) | |
1086 | { | |
1087 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1088 | unsigned int mask = SPMI_LDO_SOFT_START_ENABLE_MASK; | |
1089 | ||
1090 | return spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_SOFT_START, | |
1091 | mask, mask); | |
1092 | } | |
1093 | ||
1094 | static int spmi_regulator_set_ilim(struct regulator_dev *rdev, int ilim_uA) | |
1095 | { | |
1096 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1097 | enum spmi_regulator_logical_type type = vreg->logical_type; | |
1098 | unsigned int current_reg; | |
1099 | u8 reg; | |
1100 | u8 mask = SPMI_BOOST_CURRENT_LIMIT_MASK | | |
1101 | SPMI_BOOST_CURRENT_LIMIT_ENABLE_MASK; | |
1102 | int max = (SPMI_BOOST_CURRENT_LIMIT_MASK + 1) * 500; | |
1103 | ||
1104 | if (type == SPMI_REGULATOR_LOGICAL_TYPE_BOOST) | |
1105 | current_reg = SPMI_BOOST_REG_CURRENT_LIMIT; | |
1106 | else | |
1107 | current_reg = SPMI_BOOST_BYP_REG_CURRENT_LIMIT; | |
1108 | ||
1109 | if (ilim_uA > max || ilim_uA <= 0) | |
1110 | return -EINVAL; | |
1111 | ||
1112 | reg = (ilim_uA - 1) / 500; | |
1113 | reg |= SPMI_BOOST_CURRENT_LIMIT_ENABLE_MASK; | |
1114 | ||
1115 | return spmi_vreg_update_bits(vreg, current_reg, reg, mask); | |
1116 | } | |
1117 | ||
1118 | static int spmi_regulator_vs_clear_ocp(struct spmi_regulator *vreg) | |
1119 | { | |
1120 | int ret; | |
1121 | ||
1122 | ret = spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_ENABLE, | |
1123 | SPMI_COMMON_DISABLE, SPMI_COMMON_ENABLE_MASK); | |
1124 | ||
1125 | vreg->vs_enable_time = ktime_get(); | |
1126 | ||
1127 | ret = spmi_vreg_update_bits(vreg, SPMI_COMMON_REG_ENABLE, | |
1128 | SPMI_COMMON_ENABLE, SPMI_COMMON_ENABLE_MASK); | |
1129 | ||
1130 | return ret; | |
1131 | } | |
1132 | ||
1133 | static void spmi_regulator_vs_ocp_work(struct work_struct *work) | |
1134 | { | |
1135 | struct delayed_work *dwork = to_delayed_work(work); | |
1136 | struct spmi_regulator *vreg | |
1137 | = container_of(dwork, struct spmi_regulator, ocp_work); | |
1138 | ||
1139 | spmi_regulator_vs_clear_ocp(vreg); | |
1140 | } | |
1141 | ||
1142 | static irqreturn_t spmi_regulator_vs_ocp_isr(int irq, void *data) | |
1143 | { | |
1144 | struct spmi_regulator *vreg = data; | |
1145 | ktime_t ocp_irq_time; | |
1146 | s64 ocp_trigger_delay_us; | |
1147 | ||
1148 | ocp_irq_time = ktime_get(); | |
1149 | ocp_trigger_delay_us = ktime_us_delta(ocp_irq_time, | |
1150 | vreg->vs_enable_time); | |
1151 | ||
1152 | /* | |
1153 | * Reset the OCP count if there is a large delay between switch enable | |
1154 | * and when OCP triggers. This is indicative of a hotplug event as | |
1155 | * opposed to a fault. | |
1156 | */ | |
1157 | if (ocp_trigger_delay_us > SPMI_VS_OCP_FAULT_DELAY_US) | |
1158 | vreg->ocp_count = 0; | |
1159 | ||
1160 | /* Wait for switch output to settle back to 0 V after OCP triggered. */ | |
1161 | udelay(SPMI_VS_OCP_FALL_DELAY_US); | |
1162 | ||
1163 | vreg->ocp_count++; | |
1164 | ||
1165 | if (vreg->ocp_count == 1) { | |
1166 | /* Immediately clear the over current condition. */ | |
1167 | spmi_regulator_vs_clear_ocp(vreg); | |
1168 | } else if (vreg->ocp_count <= vreg->ocp_max_retries) { | |
1169 | /* Schedule the over current clear task to run later. */ | |
1170 | schedule_delayed_work(&vreg->ocp_work, | |
1171 | msecs_to_jiffies(vreg->ocp_retry_delay_ms) + 1); | |
1172 | } else { | |
1173 | dev_err(vreg->dev, | |
1174 | "OCP triggered %d times; no further retries\n", | |
1175 | vreg->ocp_count); | |
1176 | } | |
1177 | ||
1178 | return IRQ_HANDLED; | |
1179 | } | |
1180 | ||
0caecaa8 IL |
1181 | #define SAW3_VCTL_DATA_MASK 0xFF |
1182 | #define SAW3_VCTL_CLEAR_MASK 0x700FF | |
1183 | #define SAW3_AVS_CTL_EN_MASK 0x1 | |
1184 | #define SAW3_AVS_CTL_TGGL_MASK 0x8000000 | |
1185 | #define SAW3_AVS_CTL_CLEAR_MASK 0x7efc00 | |
1186 | ||
9689ca0a | 1187 | static struct regmap *saw_regmap; |
0caecaa8 IL |
1188 | |
1189 | static void spmi_saw_set_vdd(void *data) | |
1190 | { | |
1191 | u32 vctl, data3, avs_ctl, pmic_sts; | |
1192 | bool avs_enabled = false; | |
1193 | unsigned long timeout; | |
1194 | u8 voltage_sel = *(u8 *)data; | |
1195 | ||
1196 | regmap_read(saw_regmap, SAW3_AVS_CTL, &avs_ctl); | |
1197 | regmap_read(saw_regmap, SAW3_VCTL, &vctl); | |
1198 | regmap_read(saw_regmap, SAW3_SPM_PMIC_DATA_3, &data3); | |
1199 | ||
1200 | /* select the band */ | |
1201 | vctl &= ~SAW3_VCTL_CLEAR_MASK; | |
1202 | vctl |= (u32)voltage_sel; | |
1203 | ||
1204 | data3 &= ~SAW3_VCTL_CLEAR_MASK; | |
1205 | data3 |= (u32)voltage_sel; | |
1206 | ||
1207 | /* If AVS is enabled, switch it off during the voltage change */ | |
1208 | avs_enabled = SAW3_AVS_CTL_EN_MASK & avs_ctl; | |
1209 | if (avs_enabled) { | |
1210 | avs_ctl &= ~SAW3_AVS_CTL_TGGL_MASK; | |
1211 | regmap_write(saw_regmap, SAW3_AVS_CTL, avs_ctl); | |
1212 | } | |
1213 | ||
1214 | regmap_write(saw_regmap, SAW3_RST, 1); | |
1215 | regmap_write(saw_regmap, SAW3_VCTL, vctl); | |
1216 | regmap_write(saw_regmap, SAW3_SPM_PMIC_DATA_3, data3); | |
1217 | ||
1218 | timeout = jiffies + usecs_to_jiffies(100); | |
1219 | do { | |
1220 | regmap_read(saw_regmap, SAW3_PMIC_STS, &pmic_sts); | |
1221 | pmic_sts &= SAW3_VCTL_DATA_MASK; | |
1222 | if (pmic_sts == (u32)voltage_sel) | |
1223 | break; | |
1224 | ||
1225 | cpu_relax(); | |
1226 | ||
1227 | } while (time_before(jiffies, timeout)); | |
1228 | ||
1229 | /* After successful voltage change, switch the AVS back on */ | |
1230 | if (avs_enabled) { | |
1231 | pmic_sts &= 0x3f; | |
1232 | avs_ctl &= ~SAW3_AVS_CTL_CLEAR_MASK; | |
1233 | avs_ctl |= ((pmic_sts - 4) << 10); | |
1234 | avs_ctl |= (pmic_sts << 17); | |
1235 | avs_ctl |= SAW3_AVS_CTL_TGGL_MASK; | |
1236 | regmap_write(saw_regmap, SAW3_AVS_CTL, avs_ctl); | |
1237 | } | |
1238 | } | |
1239 | ||
1240 | static int | |
1241 | spmi_regulator_saw_set_voltage(struct regulator_dev *rdev, unsigned selector) | |
1242 | { | |
1243 | struct spmi_regulator *vreg = rdev_get_drvdata(rdev); | |
1244 | int ret; | |
1245 | u8 range_sel, voltage_sel; | |
1246 | ||
1247 | ret = spmi_sw_selector_to_hw(vreg, selector, &range_sel, &voltage_sel); | |
1248 | if (ret) | |
1249 | return ret; | |
1250 | ||
1251 | if (0 != range_sel) { | |
1252 | dev_dbg(&rdev->dev, "range_sel = %02X voltage_sel = %02X", \ | |
1253 | range_sel, voltage_sel); | |
1254 | return -EINVAL; | |
1255 | } | |
1256 | ||
1257 | /* Always do the SAW register writes on the first CPU */ | |
1258 | return smp_call_function_single(0, spmi_saw_set_vdd, \ | |
1259 | &voltage_sel, true); | |
1260 | } | |
1261 | ||
1262 | static struct regulator_ops spmi_saw_ops = {}; | |
1263 | ||
e92a4047 | 1264 | static struct regulator_ops spmi_smps_ops = { |
9d485332 AL |
1265 | .enable = regulator_enable_regmap, |
1266 | .disable = regulator_disable_regmap, | |
1267 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 | 1268 | .set_voltage_sel = spmi_regulator_common_set_voltage, |
2cf7b99c | 1269 | .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, |
1b5b1968 SB |
1270 | .get_voltage_sel = spmi_regulator_common_get_voltage, |
1271 | .map_voltage = spmi_regulator_common_map_voltage, | |
e92a4047 SB |
1272 | .list_voltage = spmi_regulator_common_list_voltage, |
1273 | .set_mode = spmi_regulator_common_set_mode, | |
1274 | .get_mode = spmi_regulator_common_get_mode, | |
1275 | .set_load = spmi_regulator_common_set_load, | |
1276 | .set_pull_down = spmi_regulator_common_set_pull_down, | |
1277 | }; | |
1278 | ||
1279 | static struct regulator_ops spmi_ldo_ops = { | |
9d485332 AL |
1280 | .enable = regulator_enable_regmap, |
1281 | .disable = regulator_disable_regmap, | |
1282 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 SB |
1283 | .set_voltage_sel = spmi_regulator_common_set_voltage, |
1284 | .get_voltage_sel = spmi_regulator_common_get_voltage, | |
1285 | .map_voltage = spmi_regulator_common_map_voltage, | |
e92a4047 SB |
1286 | .list_voltage = spmi_regulator_common_list_voltage, |
1287 | .set_mode = spmi_regulator_common_set_mode, | |
1288 | .get_mode = spmi_regulator_common_get_mode, | |
1289 | .set_load = spmi_regulator_common_set_load, | |
1290 | .set_bypass = spmi_regulator_common_set_bypass, | |
1291 | .get_bypass = spmi_regulator_common_get_bypass, | |
1292 | .set_pull_down = spmi_regulator_common_set_pull_down, | |
1293 | .set_soft_start = spmi_regulator_common_set_soft_start, | |
1294 | }; | |
1295 | ||
1296 | static struct regulator_ops spmi_ln_ldo_ops = { | |
9d485332 AL |
1297 | .enable = regulator_enable_regmap, |
1298 | .disable = regulator_disable_regmap, | |
1299 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 SB |
1300 | .set_voltage_sel = spmi_regulator_common_set_voltage, |
1301 | .get_voltage_sel = spmi_regulator_common_get_voltage, | |
1302 | .map_voltage = spmi_regulator_common_map_voltage, | |
e92a4047 SB |
1303 | .list_voltage = spmi_regulator_common_list_voltage, |
1304 | .set_bypass = spmi_regulator_common_set_bypass, | |
1305 | .get_bypass = spmi_regulator_common_get_bypass, | |
1306 | }; | |
1307 | ||
1308 | static struct regulator_ops spmi_vs_ops = { | |
1309 | .enable = spmi_regulator_vs_enable, | |
9d485332 AL |
1310 | .disable = regulator_disable_regmap, |
1311 | .is_enabled = regulator_is_enabled_regmap, | |
e92a4047 SB |
1312 | .set_pull_down = spmi_regulator_common_set_pull_down, |
1313 | .set_soft_start = spmi_regulator_common_set_soft_start, | |
e2adfacd | 1314 | .set_over_current_protection = spmi_regulator_vs_ocp, |
919163f6 SB |
1315 | .set_mode = spmi_regulator_common_set_mode, |
1316 | .get_mode = spmi_regulator_common_get_mode, | |
e92a4047 SB |
1317 | }; |
1318 | ||
1319 | static struct regulator_ops spmi_boost_ops = { | |
9d485332 AL |
1320 | .enable = regulator_enable_regmap, |
1321 | .disable = regulator_disable_regmap, | |
1322 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 SB |
1323 | .set_voltage_sel = spmi_regulator_single_range_set_voltage, |
1324 | .get_voltage_sel = spmi_regulator_single_range_get_voltage, | |
1325 | .map_voltage = spmi_regulator_single_map_voltage, | |
e92a4047 SB |
1326 | .list_voltage = spmi_regulator_common_list_voltage, |
1327 | .set_input_current_limit = spmi_regulator_set_ilim, | |
1328 | }; | |
1329 | ||
1330 | static struct regulator_ops spmi_ftsmps_ops = { | |
9d485332 AL |
1331 | .enable = regulator_enable_regmap, |
1332 | .disable = regulator_disable_regmap, | |
1333 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 | 1334 | .set_voltage_sel = spmi_regulator_common_set_voltage, |
e92a4047 | 1335 | .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, |
1b5b1968 SB |
1336 | .get_voltage_sel = spmi_regulator_common_get_voltage, |
1337 | .map_voltage = spmi_regulator_common_map_voltage, | |
e92a4047 SB |
1338 | .list_voltage = spmi_regulator_common_list_voltage, |
1339 | .set_mode = spmi_regulator_common_set_mode, | |
1340 | .get_mode = spmi_regulator_common_get_mode, | |
1341 | .set_load = spmi_regulator_common_set_load, | |
1342 | .set_pull_down = spmi_regulator_common_set_pull_down, | |
1343 | }; | |
1344 | ||
1345 | static struct regulator_ops spmi_ult_lo_smps_ops = { | |
9d485332 AL |
1346 | .enable = regulator_enable_regmap, |
1347 | .disable = regulator_disable_regmap, | |
1348 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 | 1349 | .set_voltage_sel = spmi_regulator_ult_lo_smps_set_voltage, |
2cf7b99c | 1350 | .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, |
1b5b1968 | 1351 | .get_voltage_sel = spmi_regulator_ult_lo_smps_get_voltage, |
e92a4047 SB |
1352 | .list_voltage = spmi_regulator_common_list_voltage, |
1353 | .set_mode = spmi_regulator_common_set_mode, | |
1354 | .get_mode = spmi_regulator_common_get_mode, | |
1355 | .set_load = spmi_regulator_common_set_load, | |
1356 | .set_pull_down = spmi_regulator_common_set_pull_down, | |
1357 | }; | |
1358 | ||
1359 | static struct regulator_ops spmi_ult_ho_smps_ops = { | |
9d485332 AL |
1360 | .enable = regulator_enable_regmap, |
1361 | .disable = regulator_disable_regmap, | |
1362 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 | 1363 | .set_voltage_sel = spmi_regulator_single_range_set_voltage, |
2cf7b99c | 1364 | .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, |
1b5b1968 SB |
1365 | .get_voltage_sel = spmi_regulator_single_range_get_voltage, |
1366 | .map_voltage = spmi_regulator_single_map_voltage, | |
e92a4047 SB |
1367 | .list_voltage = spmi_regulator_common_list_voltage, |
1368 | .set_mode = spmi_regulator_common_set_mode, | |
1369 | .get_mode = spmi_regulator_common_get_mode, | |
1370 | .set_load = spmi_regulator_common_set_load, | |
1371 | .set_pull_down = spmi_regulator_common_set_pull_down, | |
1372 | }; | |
1373 | ||
1374 | static struct regulator_ops spmi_ult_ldo_ops = { | |
9d485332 AL |
1375 | .enable = regulator_enable_regmap, |
1376 | .disable = regulator_disable_regmap, | |
1377 | .is_enabled = regulator_is_enabled_regmap, | |
1b5b1968 SB |
1378 | .set_voltage_sel = spmi_regulator_single_range_set_voltage, |
1379 | .get_voltage_sel = spmi_regulator_single_range_get_voltage, | |
1380 | .map_voltage = spmi_regulator_single_map_voltage, | |
e92a4047 SB |
1381 | .list_voltage = spmi_regulator_common_list_voltage, |
1382 | .set_mode = spmi_regulator_common_set_mode, | |
1383 | .get_mode = spmi_regulator_common_get_mode, | |
1384 | .set_load = spmi_regulator_common_set_load, | |
1385 | .set_bypass = spmi_regulator_common_set_bypass, | |
1386 | .get_bypass = spmi_regulator_common_get_bypass, | |
1387 | .set_pull_down = spmi_regulator_common_set_pull_down, | |
1388 | .set_soft_start = spmi_regulator_common_set_soft_start, | |
1389 | }; | |
1390 | ||
42ba89c8 JH |
1391 | static struct regulator_ops spmi_ftsmps426_ops = { |
1392 | .enable = regulator_enable_regmap, | |
1393 | .disable = regulator_disable_regmap, | |
1394 | .is_enabled = regulator_is_enabled_regmap, | |
1395 | .set_voltage_sel = spmi_regulator_ftsmps426_set_voltage, | |
1396 | .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, | |
1397 | .get_voltage_sel = spmi_regulator_ftsmps426_get_voltage, | |
1398 | .map_voltage = spmi_regulator_single_map_voltage, | |
1399 | .list_voltage = spmi_regulator_common_list_voltage, | |
1400 | .set_mode = spmi_regulator_ftsmps426_set_mode, | |
1401 | .get_mode = spmi_regulator_ftsmps426_get_mode, | |
1402 | .set_load = spmi_regulator_common_set_load, | |
1403 | .set_pull_down = spmi_regulator_common_set_pull_down, | |
1404 | }; | |
1405 | ||
0211f68e JR |
1406 | static struct regulator_ops spmi_hfs430_ops = { |
1407 | .enable = regulator_enable_regmap, | |
1408 | .disable = regulator_disable_regmap, | |
1409 | .is_enabled = regulator_is_enabled_regmap, | |
1410 | .set_voltage_sel = spmi_regulator_ftsmps426_set_voltage, | |
1411 | .set_voltage_time_sel = spmi_regulator_set_voltage_time_sel, | |
1412 | .get_voltage_sel = spmi_regulator_ftsmps426_get_voltage, | |
1413 | .map_voltage = spmi_regulator_single_map_voltage, | |
1414 | .list_voltage = spmi_regulator_common_list_voltage, | |
1415 | .set_mode = spmi_regulator_ftsmps426_set_mode, | |
1416 | .get_mode = spmi_regulator_ftsmps426_get_mode, | |
1417 | }; | |
1418 | ||
e92a4047 SB |
1419 | /* Maximum possible digital major revision value */ |
1420 | #define INF 0xFF | |
1421 | ||
1422 | static const struct spmi_regulator_mapping supported_regulators[] = { | |
1423 | /* type subtype dig_min dig_max ltype ops setpoints hpm_min */ | |
1424 | SPMI_VREG(BUCK, GP_CTL, 0, INF, SMPS, smps, smps, 100000), | |
0211f68e | 1425 | SPMI_VREG(BUCK, HFS430, 0, INF, HFS430, hfs430, hfs430, 10000), |
e92a4047 SB |
1426 | SPMI_VREG(LDO, N300, 0, INF, LDO, ldo, nldo1, 10000), |
1427 | SPMI_VREG(LDO, N600, 0, 0, LDO, ldo, nldo2, 10000), | |
1428 | SPMI_VREG(LDO, N1200, 0, 0, LDO, ldo, nldo2, 10000), | |
1429 | SPMI_VREG(LDO, N600, 1, INF, LDO, ldo, nldo3, 10000), | |
1430 | SPMI_VREG(LDO, N1200, 1, INF, LDO, ldo, nldo3, 10000), | |
1431 | SPMI_VREG(LDO, N600_ST, 0, 0, LDO, ldo, nldo2, 10000), | |
1432 | SPMI_VREG(LDO, N1200_ST, 0, 0, LDO, ldo, nldo2, 10000), | |
1433 | SPMI_VREG(LDO, N600_ST, 1, INF, LDO, ldo, nldo3, 10000), | |
1434 | SPMI_VREG(LDO, N1200_ST, 1, INF, LDO, ldo, nldo3, 10000), | |
1435 | SPMI_VREG(LDO, P50, 0, INF, LDO, ldo, pldo, 5000), | |
1436 | SPMI_VREG(LDO, P150, 0, INF, LDO, ldo, pldo, 10000), | |
1437 | SPMI_VREG(LDO, P300, 0, INF, LDO, ldo, pldo, 10000), | |
1438 | SPMI_VREG(LDO, P600, 0, INF, LDO, ldo, pldo, 10000), | |
1439 | SPMI_VREG(LDO, P1200, 0, INF, LDO, ldo, pldo, 10000), | |
1440 | SPMI_VREG(LDO, LN, 0, INF, LN_LDO, ln_ldo, ln_ldo, 0), | |
1441 | SPMI_VREG(LDO, LV_P50, 0, INF, LDO, ldo, pldo, 5000), | |
1442 | SPMI_VREG(LDO, LV_P150, 0, INF, LDO, ldo, pldo, 10000), | |
1443 | SPMI_VREG(LDO, LV_P300, 0, INF, LDO, ldo, pldo, 10000), | |
1444 | SPMI_VREG(LDO, LV_P600, 0, INF, LDO, ldo, pldo, 10000), | |
1445 | SPMI_VREG(LDO, LV_P1200, 0, INF, LDO, ldo, pldo, 10000), | |
1446 | SPMI_VREG_VS(LV100, 0, INF), | |
1447 | SPMI_VREG_VS(LV300, 0, INF), | |
1448 | SPMI_VREG_VS(MV300, 0, INF), | |
1449 | SPMI_VREG_VS(MV500, 0, INF), | |
1450 | SPMI_VREG_VS(HDMI, 0, INF), | |
1451 | SPMI_VREG_VS(OTG, 0, INF), | |
1452 | SPMI_VREG(BOOST, 5V_BOOST, 0, INF, BOOST, boost, boost, 0), | |
1453 | SPMI_VREG(FTS, FTS_CTL, 0, INF, FTSMPS, ftsmps, ftsmps, 100000), | |
1454 | SPMI_VREG(FTS, FTS2p5_CTL, 0, INF, FTSMPS, ftsmps, ftsmps2p5, 100000), | |
42ba89c8 | 1455 | SPMI_VREG(FTS, FTS426_CTL, 0, INF, FTSMPS426, ftsmps426, ftsmps426, 100000), |
e92a4047 SB |
1456 | SPMI_VREG(BOOST_BYP, BB_2A, 0, INF, BOOST_BYP, boost, boost_byp, 0), |
1457 | SPMI_VREG(ULT_BUCK, ULT_HF_CTL1, 0, INF, ULT_LO_SMPS, ult_lo_smps, | |
1458 | ult_lo_smps, 100000), | |
1459 | SPMI_VREG(ULT_BUCK, ULT_HF_CTL2, 0, INF, ULT_LO_SMPS, ult_lo_smps, | |
1460 | ult_lo_smps, 100000), | |
1461 | SPMI_VREG(ULT_BUCK, ULT_HF_CTL3, 0, INF, ULT_LO_SMPS, ult_lo_smps, | |
1462 | ult_lo_smps, 100000), | |
1463 | SPMI_VREG(ULT_BUCK, ULT_HF_CTL4, 0, INF, ULT_HO_SMPS, ult_ho_smps, | |
1464 | ult_ho_smps, 100000), | |
1465 | SPMI_VREG(ULT_LDO, N300_ST, 0, INF, ULT_LDO, ult_ldo, ult_nldo, 10000), | |
1466 | SPMI_VREG(ULT_LDO, N600_ST, 0, INF, ULT_LDO, ult_ldo, ult_nldo, 10000), | |
1467 | SPMI_VREG(ULT_LDO, N900_ST, 0, INF, ULT_LDO, ult_ldo, ult_nldo, 10000), | |
1468 | SPMI_VREG(ULT_LDO, N1200_ST, 0, INF, ULT_LDO, ult_ldo, ult_nldo, 10000), | |
1469 | SPMI_VREG(ULT_LDO, LV_P150, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000), | |
1470 | SPMI_VREG(ULT_LDO, LV_P300, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000), | |
1471 | SPMI_VREG(ULT_LDO, LV_P450, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000), | |
1472 | SPMI_VREG(ULT_LDO, P600, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000), | |
1473 | SPMI_VREG(ULT_LDO, P150, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 10000), | |
1474 | SPMI_VREG(ULT_LDO, P50, 0, INF, ULT_LDO, ult_ldo, ult_pldo, 5000), | |
1475 | }; | |
1476 | ||
1477 | static void spmi_calculate_num_voltages(struct spmi_voltage_set_points *points) | |
1478 | { | |
1479 | unsigned int n; | |
1480 | struct spmi_voltage_range *range = points->range; | |
1481 | ||
1482 | for (; range < points->range + points->count; range++) { | |
1483 | n = 0; | |
1484 | if (range->set_point_max_uV) { | |
1485 | n = range->set_point_max_uV - range->set_point_min_uV; | |
419d06a1 | 1486 | n = (n / range->step_uV) + 1; |
e92a4047 SB |
1487 | } |
1488 | range->n_voltages = n; | |
1489 | points->n_voltages += n; | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | static int spmi_regulator_match(struct spmi_regulator *vreg, u16 force_type) | |
1494 | { | |
1495 | const struct spmi_regulator_mapping *mapping; | |
1496 | int ret, i; | |
1497 | u32 dig_major_rev; | |
1498 | u8 version[SPMI_COMMON_REG_SUBTYPE - SPMI_COMMON_REG_DIG_MAJOR_REV + 1]; | |
1499 | u8 type, subtype; | |
1500 | ||
1501 | ret = spmi_vreg_read(vreg, SPMI_COMMON_REG_DIG_MAJOR_REV, version, | |
1502 | ARRAY_SIZE(version)); | |
1503 | if (ret) { | |
6ee5c044 | 1504 | dev_dbg(vreg->dev, "could not read version registers\n"); |
e92a4047 SB |
1505 | return ret; |
1506 | } | |
1507 | dig_major_rev = version[SPMI_COMMON_REG_DIG_MAJOR_REV | |
1508 | - SPMI_COMMON_REG_DIG_MAJOR_REV]; | |
0caecaa8 | 1509 | |
e92a4047 SB |
1510 | if (!force_type) { |
1511 | type = version[SPMI_COMMON_REG_TYPE - | |
1512 | SPMI_COMMON_REG_DIG_MAJOR_REV]; | |
1513 | subtype = version[SPMI_COMMON_REG_SUBTYPE - | |
1514 | SPMI_COMMON_REG_DIG_MAJOR_REV]; | |
1515 | } else { | |
1516 | type = force_type >> 8; | |
1517 | subtype = force_type; | |
1518 | } | |
1519 | ||
1520 | for (i = 0; i < ARRAY_SIZE(supported_regulators); i++) { | |
1521 | mapping = &supported_regulators[i]; | |
1522 | if (mapping->type == type && mapping->subtype == subtype | |
1523 | && mapping->revision_min <= dig_major_rev | |
1524 | && mapping->revision_max >= dig_major_rev) | |
1525 | goto found; | |
1526 | } | |
1527 | ||
1528 | dev_err(vreg->dev, | |
1529 | "unsupported regulator: name=%s type=0x%02X, subtype=0x%02X, dig major rev=0x%02X\n", | |
1530 | vreg->desc.name, type, subtype, dig_major_rev); | |
1531 | ||
1532 | return -ENODEV; | |
1533 | ||
1534 | found: | |
1535 | vreg->logical_type = mapping->logical_type; | |
1536 | vreg->set_points = mapping->set_points; | |
1537 | vreg->hpm_min_load = mapping->hpm_min_load; | |
1538 | vreg->desc.ops = mapping->ops; | |
1539 | ||
1540 | if (mapping->set_points) { | |
1541 | if (!mapping->set_points->n_voltages) | |
1542 | spmi_calculate_num_voltages(mapping->set_points); | |
1543 | vreg->desc.n_voltages = mapping->set_points->n_voltages; | |
1544 | } | |
1545 | ||
1546 | return 0; | |
1547 | } | |
1548 | ||
2cf7b99c | 1549 | static int spmi_regulator_init_slew_rate(struct spmi_regulator *vreg) |
e92a4047 SB |
1550 | { |
1551 | int ret; | |
1552 | u8 reg = 0; | |
2cf7b99c | 1553 | int step, delay, slew_rate, step_delay; |
e92a4047 SB |
1554 | const struct spmi_voltage_range *range; |
1555 | ||
1556 | ret = spmi_vreg_read(vreg, SPMI_COMMON_REG_STEP_CTRL, ®, 1); | |
1557 | if (ret) { | |
1558 | dev_err(vreg->dev, "spmi read failed, ret=%d\n", ret); | |
1559 | return ret; | |
1560 | } | |
1561 | ||
1562 | range = spmi_regulator_find_range(vreg); | |
1563 | if (!range) | |
1564 | return -EINVAL; | |
1565 | ||
2cf7b99c SB |
1566 | switch (vreg->logical_type) { |
1567 | case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS: | |
1568 | step_delay = SPMI_FTSMPS_STEP_DELAY; | |
1569 | break; | |
1570 | default: | |
1571 | step_delay = SPMI_DEFAULT_STEP_DELAY; | |
1572 | break; | |
1573 | } | |
1574 | ||
e92a4047 SB |
1575 | step = reg & SPMI_FTSMPS_STEP_CTRL_STEP_MASK; |
1576 | step >>= SPMI_FTSMPS_STEP_CTRL_STEP_SHIFT; | |
1577 | ||
1578 | delay = reg & SPMI_FTSMPS_STEP_CTRL_DELAY_MASK; | |
1579 | delay >>= SPMI_FTSMPS_STEP_CTRL_DELAY_SHIFT; | |
1580 | ||
1581 | /* slew_rate has units of uV/us */ | |
1582 | slew_rate = SPMI_FTSMPS_CLOCK_RATE * range->step_uV * (1 << step); | |
2cf7b99c | 1583 | slew_rate /= 1000 * (step_delay << delay); |
e92a4047 SB |
1584 | slew_rate *= SPMI_FTSMPS_STEP_MARGIN_NUM; |
1585 | slew_rate /= SPMI_FTSMPS_STEP_MARGIN_DEN; | |
1586 | ||
1587 | /* Ensure that the slew rate is greater than 0 */ | |
1588 | vreg->slew_rate = max(slew_rate, 1); | |
1589 | ||
1590 | return ret; | |
1591 | } | |
1592 | ||
0211f68e JR |
1593 | static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator *vreg, |
1594 | int clock_rate) | |
42ba89c8 JH |
1595 | { |
1596 | int ret; | |
1597 | u8 reg = 0; | |
1598 | int delay, slew_rate; | |
1599 | const struct spmi_voltage_range *range = &vreg->set_points->range[0]; | |
1600 | ||
1601 | ret = spmi_vreg_read(vreg, SPMI_COMMON_REG_STEP_CTRL, ®, 1); | |
1602 | if (ret) { | |
1603 | dev_err(vreg->dev, "spmi read failed, ret=%d\n", ret); | |
1604 | return ret; | |
1605 | } | |
1606 | ||
1607 | delay = reg & SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK; | |
1608 | delay >>= SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT; | |
1609 | ||
1610 | /* slew_rate has units of uV/us */ | |
0211f68e | 1611 | slew_rate = clock_rate * range->step_uV; |
42ba89c8 JH |
1612 | slew_rate /= 1000 * (SPMI_FTSMPS426_STEP_DELAY << delay); |
1613 | slew_rate *= SPMI_FTSMPS426_STEP_MARGIN_NUM; | |
1614 | slew_rate /= SPMI_FTSMPS426_STEP_MARGIN_DEN; | |
1615 | ||
1616 | /* Ensure that the slew rate is greater than 0 */ | |
1617 | vreg->slew_rate = max(slew_rate, 1); | |
1618 | ||
1619 | return ret; | |
1620 | } | |
1621 | ||
e2adfacd SB |
1622 | static int spmi_regulator_init_registers(struct spmi_regulator *vreg, |
1623 | const struct spmi_regulator_init_data *data) | |
1624 | { | |
1625 | int ret; | |
1626 | enum spmi_regulator_logical_type type; | |
1627 | u8 ctrl_reg[8], reg, mask; | |
1628 | ||
1629 | type = vreg->logical_type; | |
1630 | ||
1631 | ret = spmi_vreg_read(vreg, SPMI_COMMON_REG_VOLTAGE_RANGE, ctrl_reg, 8); | |
1632 | if (ret) | |
1633 | return ret; | |
1634 | ||
1635 | /* Set up enable pin control. */ | |
1636 | if ((type == SPMI_REGULATOR_LOGICAL_TYPE_SMPS | |
1637 | || type == SPMI_REGULATOR_LOGICAL_TYPE_LDO | |
1638 | || type == SPMI_REGULATOR_LOGICAL_TYPE_VS) | |
1639 | && !(data->pin_ctrl_enable | |
1640 | & SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT)) { | |
1641 | ctrl_reg[SPMI_COMMON_IDX_ENABLE] &= | |
1642 | ~SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK; | |
1643 | ctrl_reg[SPMI_COMMON_IDX_ENABLE] |= | |
1644 | data->pin_ctrl_enable & SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK; | |
1645 | } | |
1646 | ||
1647 | /* Set up mode pin control. */ | |
1648 | if ((type == SPMI_REGULATOR_LOGICAL_TYPE_SMPS | |
1649 | || type == SPMI_REGULATOR_LOGICAL_TYPE_LDO) | |
1650 | && !(data->pin_ctrl_hpm | |
1651 | & SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT)) { | |
1652 | ctrl_reg[SPMI_COMMON_IDX_MODE] &= | |
1653 | ~SPMI_COMMON_MODE_FOLLOW_ALL_MASK; | |
1654 | ctrl_reg[SPMI_COMMON_IDX_MODE] |= | |
1655 | data->pin_ctrl_hpm & SPMI_COMMON_MODE_FOLLOW_ALL_MASK; | |
1656 | } | |
1657 | ||
1658 | if (type == SPMI_REGULATOR_LOGICAL_TYPE_VS | |
1659 | && !(data->pin_ctrl_hpm & SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT)) { | |
1660 | ctrl_reg[SPMI_COMMON_IDX_MODE] &= | |
1661 | ~SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; | |
1662 | ctrl_reg[SPMI_COMMON_IDX_MODE] |= | |
1663 | data->pin_ctrl_hpm & SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; | |
1664 | } | |
1665 | ||
1666 | if ((type == SPMI_REGULATOR_LOGICAL_TYPE_ULT_LO_SMPS | |
1667 | || type == SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS | |
1668 | || type == SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO) | |
1669 | && !(data->pin_ctrl_hpm | |
1670 | & SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT)) { | |
1671 | ctrl_reg[SPMI_COMMON_IDX_MODE] &= | |
1672 | ~SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; | |
1673 | ctrl_reg[SPMI_COMMON_IDX_MODE] |= | |
1674 | data->pin_ctrl_hpm & SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK; | |
1675 | } | |
1676 | ||
1677 | /* Write back any control register values that were modified. */ | |
1678 | ret = spmi_vreg_write(vreg, SPMI_COMMON_REG_VOLTAGE_RANGE, ctrl_reg, 8); | |
1679 | if (ret) | |
1680 | return ret; | |
1681 | ||
1682 | /* Set soft start strength and over current protection for VS. */ | |
1683 | if (type == SPMI_REGULATOR_LOGICAL_TYPE_VS) { | |
1684 | if (data->vs_soft_start_strength | |
1685 | != SPMI_VS_SOFT_START_STR_HW_DEFAULT) { | |
1686 | reg = data->vs_soft_start_strength | |
1687 | & SPMI_VS_SOFT_START_SEL_MASK; | |
1688 | mask = SPMI_VS_SOFT_START_SEL_MASK; | |
1689 | return spmi_vreg_update_bits(vreg, | |
1690 | SPMI_VS_REG_SOFT_START, | |
1691 | reg, mask); | |
1692 | } | |
1693 | } | |
1694 | ||
1695 | return 0; | |
1696 | } | |
1697 | ||
1698 | static void spmi_regulator_get_dt_config(struct spmi_regulator *vreg, | |
1699 | struct device_node *node, struct spmi_regulator_init_data *data) | |
1700 | { | |
1701 | /* | |
1702 | * Initialize configuration parameters to use hardware default in case | |
1703 | * no value is specified via device tree. | |
1704 | */ | |
1705 | data->pin_ctrl_enable = SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT; | |
1706 | data->pin_ctrl_hpm = SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT; | |
1707 | data->vs_soft_start_strength = SPMI_VS_SOFT_START_STR_HW_DEFAULT; | |
1708 | ||
1709 | /* These bindings are optional, so it is okay if they aren't found. */ | |
1710 | of_property_read_u32(node, "qcom,ocp-max-retries", | |
1711 | &vreg->ocp_max_retries); | |
1712 | of_property_read_u32(node, "qcom,ocp-retry-delay", | |
1713 | &vreg->ocp_retry_delay_ms); | |
1714 | of_property_read_u32(node, "qcom,pin-ctrl-enable", | |
1715 | &data->pin_ctrl_enable); | |
1716 | of_property_read_u32(node, "qcom,pin-ctrl-hpm", &data->pin_ctrl_hpm); | |
1717 | of_property_read_u32(node, "qcom,vs-soft-start-strength", | |
1718 | &data->vs_soft_start_strength); | |
1719 | } | |
1720 | ||
e92a4047 SB |
1721 | static unsigned int spmi_regulator_of_map_mode(unsigned int mode) |
1722 | { | |
e2adfacd | 1723 | if (mode == 1) |
e92a4047 | 1724 | return REGULATOR_MODE_NORMAL; |
e2adfacd SB |
1725 | if (mode == 2) |
1726 | return REGULATOR_MODE_FAST; | |
e92a4047 SB |
1727 | |
1728 | return REGULATOR_MODE_IDLE; | |
1729 | } | |
1730 | ||
1731 | static int spmi_regulator_of_parse(struct device_node *node, | |
1732 | const struct regulator_desc *desc, | |
1733 | struct regulator_config *config) | |
1734 | { | |
e2adfacd | 1735 | struct spmi_regulator_init_data data = { }; |
e92a4047 SB |
1736 | struct spmi_regulator *vreg = config->driver_data; |
1737 | struct device *dev = config->dev; | |
1738 | int ret; | |
1739 | ||
e2adfacd SB |
1740 | spmi_regulator_get_dt_config(vreg, node, &data); |
1741 | ||
1742 | if (!vreg->ocp_max_retries) | |
1743 | vreg->ocp_max_retries = SPMI_VS_OCP_DEFAULT_MAX_RETRIES; | |
1744 | if (!vreg->ocp_retry_delay_ms) | |
1745 | vreg->ocp_retry_delay_ms = SPMI_VS_OCP_DEFAULT_RETRY_DELAY_MS; | |
1746 | ||
1747 | ret = spmi_regulator_init_registers(vreg, &data); | |
1748 | if (ret) { | |
1749 | dev_err(dev, "common initialization failed, ret=%d\n", ret); | |
1750 | return ret; | |
1751 | } | |
e92a4047 | 1752 | |
2cf7b99c SB |
1753 | switch (vreg->logical_type) { |
1754 | case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS: | |
1755 | case SPMI_REGULATOR_LOGICAL_TYPE_ULT_LO_SMPS: | |
1756 | case SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS: | |
1757 | case SPMI_REGULATOR_LOGICAL_TYPE_SMPS: | |
1758 | ret = spmi_regulator_init_slew_rate(vreg); | |
e92a4047 SB |
1759 | if (ret) |
1760 | return ret; | |
42ba89c8 JH |
1761 | break; |
1762 | case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426: | |
0211f68e JR |
1763 | ret = spmi_regulator_init_slew_rate_ftsmps426(vreg, |
1764 | SPMI_FTSMPS426_CLOCK_RATE); | |
1765 | if (ret) | |
1766 | return ret; | |
1767 | break; | |
1768 | case SPMI_REGULATOR_LOGICAL_TYPE_HFS430: | |
1769 | ret = spmi_regulator_init_slew_rate_ftsmps426(vreg, | |
1770 | SPMI_HFS430_CLOCK_RATE); | |
42ba89c8 JH |
1771 | if (ret) |
1772 | return ret; | |
1773 | break; | |
2cf7b99c SB |
1774 | default: |
1775 | break; | |
e92a4047 SB |
1776 | } |
1777 | ||
1778 | if (vreg->logical_type != SPMI_REGULATOR_LOGICAL_TYPE_VS) | |
1779 | vreg->ocp_irq = 0; | |
1780 | ||
1781 | if (vreg->ocp_irq) { | |
1782 | ret = devm_request_irq(dev, vreg->ocp_irq, | |
1783 | spmi_regulator_vs_ocp_isr, IRQF_TRIGGER_RISING, "ocp", | |
1784 | vreg); | |
1785 | if (ret < 0) { | |
1786 | dev_err(dev, "failed to request irq %d, ret=%d\n", | |
1787 | vreg->ocp_irq, ret); | |
1788 | return ret; | |
1789 | } | |
1790 | ||
1791 | INIT_DELAYED_WORK(&vreg->ocp_work, spmi_regulator_vs_ocp_work); | |
1792 | } | |
1793 | ||
1794 | return 0; | |
1795 | } | |
1796 | ||
1797 | static const struct spmi_regulator_data pm8941_regulators[] = { | |
1798 | { "s1", 0x1400, "vdd_s1", }, | |
1799 | { "s2", 0x1700, "vdd_s2", }, | |
1800 | { "s3", 0x1a00, "vdd_s3", }, | |
c333dfe8 | 1801 | { "s4", 0xa000, }, |
e92a4047 SB |
1802 | { "l1", 0x4000, "vdd_l1_l3", }, |
1803 | { "l2", 0x4100, "vdd_l2_lvs_1_2_3", }, | |
1804 | { "l3", 0x4200, "vdd_l1_l3", }, | |
1805 | { "l4", 0x4300, "vdd_l4_l11", }, | |
1806 | { "l5", 0x4400, "vdd_l5_l7", NULL, 0x0410 }, | |
1807 | { "l6", 0x4500, "vdd_l6_l12_l14_l15", }, | |
1808 | { "l7", 0x4600, "vdd_l5_l7", NULL, 0x0410 }, | |
1809 | { "l8", 0x4700, "vdd_l8_l16_l18_19", }, | |
1810 | { "l9", 0x4800, "vdd_l9_l10_l17_l22", }, | |
1811 | { "l10", 0x4900, "vdd_l9_l10_l17_l22", }, | |
1812 | { "l11", 0x4a00, "vdd_l4_l11", }, | |
1813 | { "l12", 0x4b00, "vdd_l6_l12_l14_l15", }, | |
1814 | { "l13", 0x4c00, "vdd_l13_l20_l23_l24", }, | |
1815 | { "l14", 0x4d00, "vdd_l6_l12_l14_l15", }, | |
1816 | { "l15", 0x4e00, "vdd_l6_l12_l14_l15", }, | |
1817 | { "l16", 0x4f00, "vdd_l8_l16_l18_19", }, | |
1818 | { "l17", 0x5000, "vdd_l9_l10_l17_l22", }, | |
1819 | { "l18", 0x5100, "vdd_l8_l16_l18_19", }, | |
1820 | { "l19", 0x5200, "vdd_l8_l16_l18_19", }, | |
1821 | { "l20", 0x5300, "vdd_l13_l20_l23_l24", }, | |
1822 | { "l21", 0x5400, "vdd_l21", }, | |
1823 | { "l22", 0x5500, "vdd_l9_l10_l17_l22", }, | |
1824 | { "l23", 0x5600, "vdd_l13_l20_l23_l24", }, | |
1825 | { "l24", 0x5700, "vdd_l13_l20_l23_l24", }, | |
1826 | { "lvs1", 0x8000, "vdd_l2_lvs_1_2_3", }, | |
1827 | { "lvs2", 0x8100, "vdd_l2_lvs_1_2_3", }, | |
1828 | { "lvs3", 0x8200, "vdd_l2_lvs_1_2_3", }, | |
93bfe79b SB |
1829 | { "5vs1", 0x8300, "vin_5vs", "ocp-5vs1", }, |
1830 | { "5vs2", 0x8400, "vin_5vs", "ocp-5vs2", }, | |
e92a4047 SB |
1831 | { } |
1832 | }; | |
1833 | ||
1834 | static const struct spmi_regulator_data pm8841_regulators[] = { | |
1835 | { "s1", 0x1400, "vdd_s1", }, | |
1836 | { "s2", 0x1700, "vdd_s2", NULL, 0x1c08 }, | |
1837 | { "s3", 0x1a00, "vdd_s3", }, | |
1838 | { "s4", 0x1d00, "vdd_s4", NULL, 0x1c08 }, | |
1839 | { "s5", 0x2000, "vdd_s5", NULL, 0x1c08 }, | |
1840 | { "s6", 0x2300, "vdd_s6", NULL, 0x1c08 }, | |
1841 | { "s7", 0x2600, "vdd_s7", NULL, 0x1c08 }, | |
1842 | { "s8", 0x2900, "vdd_s8", NULL, 0x1c08 }, | |
1843 | { } | |
1844 | }; | |
1845 | ||
1846 | static const struct spmi_regulator_data pm8916_regulators[] = { | |
1847 | { "s1", 0x1400, "vdd_s1", }, | |
1848 | { "s2", 0x1700, "vdd_s2", }, | |
1849 | { "s3", 0x1a00, "vdd_s3", }, | |
1850 | { "s4", 0x1d00, "vdd_s4", }, | |
1851 | { "l1", 0x4000, "vdd_l1_l3", }, | |
1852 | { "l2", 0x4100, "vdd_l2", }, | |
1853 | { "l3", 0x4200, "vdd_l1_l3", }, | |
1854 | { "l4", 0x4300, "vdd_l4_l5_l6", }, | |
1855 | { "l5", 0x4400, "vdd_l4_l5_l6", }, | |
1856 | { "l6", 0x4500, "vdd_l4_l5_l6", }, | |
1857 | { "l7", 0x4600, "vdd_l7", }, | |
1858 | { "l8", 0x4700, "vdd_l8_l11_l14_l15_l16", }, | |
1859 | { "l9", 0x4800, "vdd_l9_l10_l12_l13_l17_l18", }, | |
1860 | { "l10", 0x4900, "vdd_l9_l10_l12_l13_l17_l18", }, | |
1861 | { "l11", 0x4a00, "vdd_l8_l11_l14_l15_l16", }, | |
1862 | { "l12", 0x4b00, "vdd_l9_l10_l12_l13_l17_l18", }, | |
1863 | { "l13", 0x4c00, "vdd_l9_l10_l12_l13_l17_l18", }, | |
1864 | { "l14", 0x4d00, "vdd_l8_l11_l14_l15_l16", }, | |
1865 | { "l15", 0x4e00, "vdd_l8_l11_l14_l15_l16", }, | |
1866 | { "l16", 0x4f00, "vdd_l8_l11_l14_l15_l16", }, | |
1867 | { "l17", 0x5000, "vdd_l9_l10_l12_l13_l17_l18", }, | |
1868 | { "l18", 0x5100, "vdd_l9_l10_l12_l13_l17_l18", }, | |
1869 | { } | |
1870 | }; | |
1871 | ||
e4ff1710 ADR |
1872 | static const struct spmi_regulator_data pm8950_regulators[] = { |
1873 | { "s1", 0x1400, "vdd_s1", }, | |
1874 | { "s2", 0x1700, "vdd_s2", }, | |
1875 | { "s3", 0x1a00, "vdd_s3", }, | |
1876 | { "s4", 0x1d00, "vdd_s4", }, | |
1877 | { "s5", 0x2000, "vdd_s5", }, | |
1878 | { "s6", 0x2300, "vdd_s6", }, | |
1879 | { "l1", 0x4000, "vdd_l1_l19", }, | |
1880 | { "l2", 0x4100, "vdd_l2_l23", }, | |
1881 | { "l3", 0x4200, "vdd_l3", }, | |
1882 | { "l4", 0x4300, "vdd_l4_l5_l6_l7_l16", }, | |
1883 | { "l5", 0x4400, "vdd_l4_l5_l6_l7_l16", }, | |
1884 | { "l6", 0x4500, "vdd_l4_l5_l6_l7_l16", }, | |
1885 | { "l7", 0x4600, "vdd_l4_l5_l6_l7_l16", }, | |
1886 | { "l8", 0x4700, "vdd_l8_l11_l12_l17_l22", }, | |
1887 | { "l9", 0x4800, "vdd_l9_l10_l13_l14_l15_l18", }, | |
1888 | { "l10", 0x4900, "vdd_l9_l10_l13_l14_l15_l18", }, | |
1889 | { "l11", 0x4a00, "vdd_l8_l11_l12_l17_l22", }, | |
1890 | { "l12", 0x4b00, "vdd_l8_l11_l12_l17_l22", }, | |
1891 | { "l13", 0x4c00, "vdd_l9_l10_l13_l14_l15_l18", }, | |
1892 | { "l14", 0x4d00, "vdd_l9_l10_l13_l14_l15_l18", }, | |
1893 | { "l15", 0x4e00, "vdd_l9_l10_l13_l14_l15_l18", }, | |
1894 | { "l16", 0x4f00, "vdd_l4_l5_l6_l7_l16", }, | |
1895 | { "l17", 0x5000, "vdd_l8_l11_l12_l17_l22", }, | |
1896 | { "l18", 0x5100, "vdd_l9_l10_l13_l14_l15_l18", }, | |
1897 | { "l19", 0x5200, "vdd_l1_l19", }, | |
1898 | { "l20", 0x5300, "vdd_l20", }, | |
1899 | { "l21", 0x5400, "vdd_l21", }, | |
1900 | { "l22", 0x5500, "vdd_l8_l11_l12_l17_l22", }, | |
1901 | { "l23", 0x5600, "vdd_l2_l23", }, | |
1902 | { } | |
1903 | }; | |
1904 | ||
50314e55 SB |
1905 | static const struct spmi_regulator_data pm8994_regulators[] = { |
1906 | { "s1", 0x1400, "vdd_s1", }, | |
1907 | { "s2", 0x1700, "vdd_s2", }, | |
1908 | { "s3", 0x1a00, "vdd_s3", }, | |
1909 | { "s4", 0x1d00, "vdd_s4", }, | |
1910 | { "s5", 0x2000, "vdd_s5", }, | |
1911 | { "s6", 0x2300, "vdd_s6", }, | |
1912 | { "s7", 0x2600, "vdd_s7", }, | |
1913 | { "s8", 0x2900, "vdd_s8", }, | |
1914 | { "s9", 0x2c00, "vdd_s9", }, | |
1915 | { "s10", 0x2f00, "vdd_s10", }, | |
1916 | { "s11", 0x3200, "vdd_s11", }, | |
1917 | { "s12", 0x3500, "vdd_s12", }, | |
1918 | { "l1", 0x4000, "vdd_l1", }, | |
1919 | { "l2", 0x4100, "vdd_l2_l26_l28", }, | |
1920 | { "l3", 0x4200, "vdd_l3_l11", }, | |
1921 | { "l4", 0x4300, "vdd_l4_l27_l31", }, | |
1922 | { "l5", 0x4400, "vdd_l5_l7", }, | |
1923 | { "l6", 0x4500, "vdd_l6_l12_l32", }, | |
1924 | { "l7", 0x4600, "vdd_l5_l7", }, | |
1925 | { "l8", 0x4700, "vdd_l8_l16_l30", }, | |
1926 | { "l9", 0x4800, "vdd_l9_l10_l18_l22", }, | |
1927 | { "l10", 0x4900, "vdd_l9_l10_l18_l22", }, | |
1928 | { "l11", 0x4a00, "vdd_l3_l11", }, | |
1929 | { "l12", 0x4b00, "vdd_l6_l12_l32", }, | |
1930 | { "l13", 0x4c00, "vdd_l13_l19_l23_l24", }, | |
1931 | { "l14", 0x4d00, "vdd_l14_l15", }, | |
1932 | { "l15", 0x4e00, "vdd_l14_l15", }, | |
1933 | { "l16", 0x4f00, "vdd_l8_l16_l30", }, | |
1934 | { "l17", 0x5000, "vdd_l17_l29", }, | |
1935 | { "l18", 0x5100, "vdd_l9_l10_l18_l22", }, | |
1936 | { "l19", 0x5200, "vdd_l13_l19_l23_l24", }, | |
1937 | { "l20", 0x5300, "vdd_l20_l21", }, | |
1938 | { "l21", 0x5400, "vdd_l20_l21", }, | |
1939 | { "l22", 0x5500, "vdd_l9_l10_l18_l22", }, | |
1940 | { "l23", 0x5600, "vdd_l13_l19_l23_l24", }, | |
1941 | { "l24", 0x5700, "vdd_l13_l19_l23_l24", }, | |
1942 | { "l25", 0x5800, "vdd_l25", }, | |
1943 | { "l26", 0x5900, "vdd_l2_l26_l28", }, | |
1944 | { "l27", 0x5a00, "vdd_l4_l27_l31", }, | |
1945 | { "l28", 0x5b00, "vdd_l2_l26_l28", }, | |
1946 | { "l29", 0x5c00, "vdd_l17_l29", }, | |
1947 | { "l30", 0x5d00, "vdd_l8_l16_l30", }, | |
1948 | { "l31", 0x5e00, "vdd_l4_l27_l31", }, | |
1949 | { "l32", 0x5f00, "vdd_l6_l12_l32", }, | |
1950 | { "lvs1", 0x8000, "vdd_lvs_1_2", }, | |
1951 | { "lvs2", 0x8100, "vdd_lvs_1_2", }, | |
1952 | { } | |
1953 | }; | |
1954 | ||
ca5cd8c9 RN |
1955 | static const struct spmi_regulator_data pmi8994_regulators[] = { |
1956 | { "s1", 0x1400, "vdd_s1", }, | |
1957 | { "s2", 0x1700, "vdd_s2", }, | |
1958 | { "s3", 0x1a00, "vdd_s3", }, | |
1959 | { "l1", 0x4000, "vdd_l1", }, | |
37164571 | 1960 | { } |
ca5cd8c9 RN |
1961 | }; |
1962 | ||
2e36e140 ADR |
1963 | static const struct spmi_regulator_data pm8004_regulators[] = { |
1964 | { "s2", 0x1700, "vdd_s2", }, | |
1965 | { "s5", 0x2000, "vdd_s5", }, | |
1966 | { } | |
1967 | }; | |
1968 | ||
42ba89c8 JH |
1969 | static const struct spmi_regulator_data pm8005_regulators[] = { |
1970 | { "s1", 0x1400, "vdd_s1", }, | |
1971 | { "s2", 0x1700, "vdd_s2", }, | |
1972 | { "s3", 0x1a00, "vdd_s3", }, | |
1973 | { "s4", 0x1d00, "vdd_s4", }, | |
1974 | { } | |
1975 | }; | |
1976 | ||
0211f68e JR |
1977 | static const struct spmi_regulator_data pms405_regulators[] = { |
1978 | { "s3", 0x1a00, "vdd_s3"}, | |
1979 | { } | |
1980 | }; | |
1981 | ||
e92a4047 | 1982 | static const struct of_device_id qcom_spmi_regulator_match[] = { |
2e36e140 | 1983 | { .compatible = "qcom,pm8004-regulators", .data = &pm8004_regulators }, |
42ba89c8 | 1984 | { .compatible = "qcom,pm8005-regulators", .data = &pm8005_regulators }, |
e92a4047 SB |
1985 | { .compatible = "qcom,pm8841-regulators", .data = &pm8841_regulators }, |
1986 | { .compatible = "qcom,pm8916-regulators", .data = &pm8916_regulators }, | |
1987 | { .compatible = "qcom,pm8941-regulators", .data = &pm8941_regulators }, | |
e4ff1710 | 1988 | { .compatible = "qcom,pm8950-regulators", .data = &pm8950_regulators }, |
50314e55 | 1989 | { .compatible = "qcom,pm8994-regulators", .data = &pm8994_regulators }, |
ca5cd8c9 | 1990 | { .compatible = "qcom,pmi8994-regulators", .data = &pmi8994_regulators }, |
0211f68e | 1991 | { .compatible = "qcom,pms405-regulators", .data = &pms405_regulators }, |
e92a4047 SB |
1992 | { } |
1993 | }; | |
1994 | MODULE_DEVICE_TABLE(of, qcom_spmi_regulator_match); | |
1995 | ||
1996 | static int qcom_spmi_regulator_probe(struct platform_device *pdev) | |
1997 | { | |
1998 | const struct spmi_regulator_data *reg; | |
86f4ff7a | 1999 | const struct spmi_voltage_range *range; |
e92a4047 SB |
2000 | const struct of_device_id *match; |
2001 | struct regulator_config config = { }; | |
2002 | struct regulator_dev *rdev; | |
2003 | struct spmi_regulator *vreg; | |
2004 | struct regmap *regmap; | |
2005 | const char *name; | |
2006 | struct device *dev = &pdev->dev; | |
0caecaa8 | 2007 | struct device_node *node = pdev->dev.of_node; |
fffe7f52 NC |
2008 | struct device_node *syscon, *reg_node; |
2009 | struct property *reg_prop; | |
0caecaa8 | 2010 | int ret, lenp; |
e92a4047 SB |
2011 | struct list_head *vreg_list; |
2012 | ||
2013 | vreg_list = devm_kzalloc(dev, sizeof(*vreg_list), GFP_KERNEL); | |
2014 | if (!vreg_list) | |
2015 | return -ENOMEM; | |
2016 | INIT_LIST_HEAD(vreg_list); | |
2017 | platform_set_drvdata(pdev, vreg_list); | |
2018 | ||
2019 | regmap = dev_get_regmap(dev->parent, NULL); | |
2020 | if (!regmap) | |
2021 | return -ENODEV; | |
2022 | ||
2023 | match = of_match_device(qcom_spmi_regulator_match, &pdev->dev); | |
2024 | if (!match) | |
2025 | return -ENODEV; | |
2026 | ||
0caecaa8 IL |
2027 | if (of_find_property(node, "qcom,saw-reg", &lenp)) { |
2028 | syscon = of_parse_phandle(node, "qcom,saw-reg", 0); | |
2029 | saw_regmap = syscon_node_to_regmap(syscon); | |
2030 | of_node_put(syscon); | |
85046a15 | 2031 | if (IS_ERR(saw_regmap)) |
0caecaa8 IL |
2032 | dev_err(dev, "ERROR reading SAW regmap\n"); |
2033 | } | |
2034 | ||
e92a4047 | 2035 | for (reg = match->data; reg->name; reg++) { |
0caecaa8 | 2036 | |
fffe7f52 NC |
2037 | if (saw_regmap) { |
2038 | reg_node = of_get_child_by_name(node, reg->name); | |
2039 | reg_prop = of_find_property(reg_node, "qcom,saw-slave", | |
2040 | &lenp); | |
2041 | of_node_put(reg_node); | |
2042 | if (reg_prop) | |
2043 | continue; | |
0caecaa8 IL |
2044 | } |
2045 | ||
e92a4047 SB |
2046 | vreg = devm_kzalloc(dev, sizeof(*vreg), GFP_KERNEL); |
2047 | if (!vreg) | |
2048 | return -ENOMEM; | |
2049 | ||
2050 | vreg->dev = dev; | |
2051 | vreg->base = reg->base; | |
2052 | vreg->regmap = regmap; | |
e92a4047 SB |
2053 | if (reg->ocp) { |
2054 | vreg->ocp_irq = platform_get_irq_byname(pdev, reg->ocp); | |
2055 | if (vreg->ocp_irq < 0) { | |
2056 | ret = vreg->ocp_irq; | |
2057 | goto err; | |
2058 | } | |
2059 | } | |
e92a4047 SB |
2060 | vreg->desc.id = -1; |
2061 | vreg->desc.owner = THIS_MODULE; | |
2062 | vreg->desc.type = REGULATOR_VOLTAGE; | |
9d485332 AL |
2063 | vreg->desc.enable_reg = reg->base + SPMI_COMMON_REG_ENABLE; |
2064 | vreg->desc.enable_mask = SPMI_COMMON_ENABLE_MASK; | |
2065 | vreg->desc.enable_val = SPMI_COMMON_ENABLE; | |
e92a4047 SB |
2066 | vreg->desc.name = name = reg->name; |
2067 | vreg->desc.supply_name = reg->supply; | |
2068 | vreg->desc.of_match = reg->name; | |
2069 | vreg->desc.of_parse_cb = spmi_regulator_of_parse; | |
2070 | vreg->desc.of_map_mode = spmi_regulator_of_map_mode; | |
2071 | ||
2072 | ret = spmi_regulator_match(vreg, reg->force_type); | |
2073 | if (ret) | |
6ee5c044 | 2074 | continue; |
e92a4047 | 2075 | |
fffe7f52 NC |
2076 | if (saw_regmap) { |
2077 | reg_node = of_get_child_by_name(node, reg->name); | |
2078 | reg_prop = of_find_property(reg_node, "qcom,saw-leader", | |
2079 | &lenp); | |
2080 | of_node_put(reg_node); | |
2081 | if (reg_prop) { | |
2082 | spmi_saw_ops = *(vreg->desc.ops); | |
2083 | spmi_saw_ops.set_voltage_sel = | |
2084 | spmi_regulator_saw_set_voltage; | |
2085 | vreg->desc.ops = &spmi_saw_ops; | |
2086 | } | |
0caecaa8 IL |
2087 | } |
2088 | ||
b01d1823 | 2089 | if (vreg->set_points && vreg->set_points->count == 1) { |
86f4ff7a JRO |
2090 | /* since there is only one range */ |
2091 | range = vreg->set_points->range; | |
2092 | vreg->desc.uV_step = range->step_uV; | |
2093 | } | |
2094 | ||
e92a4047 SB |
2095 | config.dev = dev; |
2096 | config.driver_data = vreg; | |
9d485332 | 2097 | config.regmap = regmap; |
e92a4047 SB |
2098 | rdev = devm_regulator_register(dev, &vreg->desc, &config); |
2099 | if (IS_ERR(rdev)) { | |
2100 | dev_err(dev, "failed to register %s\n", name); | |
2101 | ret = PTR_ERR(rdev); | |
2102 | goto err; | |
2103 | } | |
2104 | ||
2105 | INIT_LIST_HEAD(&vreg->node); | |
2106 | list_add(&vreg->node, vreg_list); | |
2107 | } | |
2108 | ||
2109 | return 0; | |
2110 | ||
2111 | err: | |
2112 | list_for_each_entry(vreg, vreg_list, node) | |
2113 | if (vreg->ocp_irq) | |
2114 | cancel_delayed_work_sync(&vreg->ocp_work); | |
2115 | return ret; | |
2116 | } | |
2117 | ||
2118 | static int qcom_spmi_regulator_remove(struct platform_device *pdev) | |
2119 | { | |
2120 | struct spmi_regulator *vreg; | |
2121 | struct list_head *vreg_list = platform_get_drvdata(pdev); | |
2122 | ||
2123 | list_for_each_entry(vreg, vreg_list, node) | |
2124 | if (vreg->ocp_irq) | |
2125 | cancel_delayed_work_sync(&vreg->ocp_work); | |
2126 | ||
2127 | return 0; | |
2128 | } | |
2129 | ||
2130 | static struct platform_driver qcom_spmi_regulator_driver = { | |
2131 | .driver = { | |
2132 | .name = "qcom-spmi-regulator", | |
2133 | .of_match_table = qcom_spmi_regulator_match, | |
2134 | }, | |
2135 | .probe = qcom_spmi_regulator_probe, | |
2136 | .remove = qcom_spmi_regulator_remove, | |
2137 | }; | |
2138 | module_platform_driver(qcom_spmi_regulator_driver); | |
2139 | ||
2140 | MODULE_DESCRIPTION("Qualcomm SPMI PMIC regulator driver"); | |
2141 | MODULE_LICENSE("GPL v2"); | |
2142 | MODULE_ALIAS("platform:qcom-spmi-regulator"); |