1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
6 #include <linux/module.h>
7 #include <linux/delay.h>
8 #include <linux/devm-helpers.h>
10 #include <linux/kernel.h>
11 #include <linux/interrupt.h>
12 #include <linux/bitops.h>
13 #include <linux/slab.h>
15 #include <linux/of_device.h>
16 #include <linux/platform_device.h>
17 #include <linux/ktime.h>
18 #include <linux/regulator/driver.h>
19 #include <linux/regmap.h>
20 #include <linux/list.h>
21 #include <linux/mfd/syscon.h>
24 /* Pin control enable input pins. */
25 #define SPMI_REGULATOR_PIN_CTRL_ENABLE_NONE 0x00
26 #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN0 0x01
27 #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN1 0x02
28 #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN2 0x04
29 #define SPMI_REGULATOR_PIN_CTRL_ENABLE_EN3 0x08
30 #define SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT 0x10
32 /* Pin control high power mode input pins. */
33 #define SPMI_REGULATOR_PIN_CTRL_HPM_NONE 0x00
34 #define SPMI_REGULATOR_PIN_CTRL_HPM_EN0 0x01
35 #define SPMI_REGULATOR_PIN_CTRL_HPM_EN1 0x02
36 #define SPMI_REGULATOR_PIN_CTRL_HPM_EN2 0x04
37 #define SPMI_REGULATOR_PIN_CTRL_HPM_EN3 0x08
38 #define SPMI_REGULATOR_PIN_CTRL_HPM_SLEEP_B 0x10
39 #define SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT 0x20
42 * Used with enable parameters to specify that hardware default register values
43 * should be left unaltered.
45 #define SPMI_REGULATOR_USE_HW_DEFAULT 2
47 /* Soft start strength of a voltage switch type regulator */
48 enum spmi_vs_soft_start_str
{
49 SPMI_VS_SOFT_START_STR_0P05_UA
= 0,
50 SPMI_VS_SOFT_START_STR_0P25_UA
,
51 SPMI_VS_SOFT_START_STR_0P55_UA
,
52 SPMI_VS_SOFT_START_STR_0P75_UA
,
53 SPMI_VS_SOFT_START_STR_HW_DEFAULT
,
57 * struct spmi_regulator_init_data - spmi-regulator initialization data
58 * @pin_ctrl_enable: Bit mask specifying which hardware pins should be
59 * used to enable the regulator, if any
60 * Value should be an ORing of
61 * SPMI_REGULATOR_PIN_CTRL_ENABLE_* constants. If
62 * the bit specified by
63 * SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT is
64 * set, then pin control enable hardware registers
65 * will not be modified.
66 * @pin_ctrl_hpm: Bit mask specifying which hardware pins should be
67 * used to force the regulator into high power
69 * Value should be an ORing of
70 * SPMI_REGULATOR_PIN_CTRL_HPM_* constants. If
71 * the bit specified by
72 * SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT is
73 * set, then pin control mode hardware registers
74 * will not be modified.
75 * @vs_soft_start_strength: This parameter sets the soft start strength for
76 * voltage switch type regulators. Its value
77 * should be one of SPMI_VS_SOFT_START_STR_*. If
78 * its value is SPMI_VS_SOFT_START_STR_HW_DEFAULT,
79 * then the soft start strength will be left at its
80 * default hardware value.
82 struct spmi_regulator_init_data
{
83 unsigned pin_ctrl_enable
;
84 unsigned pin_ctrl_hpm
;
85 enum spmi_vs_soft_start_str vs_soft_start_strength
;
88 /* These types correspond to unique register layouts. */
89 enum spmi_regulator_logical_type
{
90 SPMI_REGULATOR_LOGICAL_TYPE_SMPS
,
91 SPMI_REGULATOR_LOGICAL_TYPE_LDO
,
92 SPMI_REGULATOR_LOGICAL_TYPE_VS
,
93 SPMI_REGULATOR_LOGICAL_TYPE_BOOST
,
94 SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS
,
95 SPMI_REGULATOR_LOGICAL_TYPE_BOOST_BYP
,
96 SPMI_REGULATOR_LOGICAL_TYPE_LN_LDO
,
97 SPMI_REGULATOR_LOGICAL_TYPE_ULT_LO_SMPS
,
98 SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS
,
99 SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO
,
100 SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426
,
101 SPMI_REGULATOR_LOGICAL_TYPE_HFS430
,
104 enum spmi_regulator_type
{
105 SPMI_REGULATOR_TYPE_BUCK
= 0x03,
106 SPMI_REGULATOR_TYPE_LDO
= 0x04,
107 SPMI_REGULATOR_TYPE_VS
= 0x05,
108 SPMI_REGULATOR_TYPE_BOOST
= 0x1b,
109 SPMI_REGULATOR_TYPE_FTS
= 0x1c,
110 SPMI_REGULATOR_TYPE_BOOST_BYP
= 0x1f,
111 SPMI_REGULATOR_TYPE_ULT_LDO
= 0x21,
112 SPMI_REGULATOR_TYPE_ULT_BUCK
= 0x22,
115 enum spmi_regulator_subtype
{
116 SPMI_REGULATOR_SUBTYPE_GP_CTL
= 0x08,
117 SPMI_REGULATOR_SUBTYPE_RF_CTL
= 0x09,
118 SPMI_REGULATOR_SUBTYPE_N50
= 0x01,
119 SPMI_REGULATOR_SUBTYPE_N150
= 0x02,
120 SPMI_REGULATOR_SUBTYPE_N300
= 0x03,
121 SPMI_REGULATOR_SUBTYPE_N600
= 0x04,
122 SPMI_REGULATOR_SUBTYPE_N1200
= 0x05,
123 SPMI_REGULATOR_SUBTYPE_N600_ST
= 0x06,
124 SPMI_REGULATOR_SUBTYPE_N1200_ST
= 0x07,
125 SPMI_REGULATOR_SUBTYPE_N900_ST
= 0x14,
126 SPMI_REGULATOR_SUBTYPE_N300_ST
= 0x15,
127 SPMI_REGULATOR_SUBTYPE_P50
= 0x08,
128 SPMI_REGULATOR_SUBTYPE_P150
= 0x09,
129 SPMI_REGULATOR_SUBTYPE_P300
= 0x0a,
130 SPMI_REGULATOR_SUBTYPE_P600
= 0x0b,
131 SPMI_REGULATOR_SUBTYPE_P1200
= 0x0c,
132 SPMI_REGULATOR_SUBTYPE_LN
= 0x10,
133 SPMI_REGULATOR_SUBTYPE_LV_P50
= 0x28,
134 SPMI_REGULATOR_SUBTYPE_LV_P150
= 0x29,
135 SPMI_REGULATOR_SUBTYPE_LV_P300
= 0x2a,
136 SPMI_REGULATOR_SUBTYPE_LV_P600
= 0x2b,
137 SPMI_REGULATOR_SUBTYPE_LV_P1200
= 0x2c,
138 SPMI_REGULATOR_SUBTYPE_LV_P450
= 0x2d,
139 SPMI_REGULATOR_SUBTYPE_HT_N300_ST
= 0x30,
140 SPMI_REGULATOR_SUBTYPE_HT_N600_ST
= 0x31,
141 SPMI_REGULATOR_SUBTYPE_HT_N1200_ST
= 0x32,
142 SPMI_REGULATOR_SUBTYPE_HT_LVP150
= 0x3b,
143 SPMI_REGULATOR_SUBTYPE_HT_LVP300
= 0x3c,
144 SPMI_REGULATOR_SUBTYPE_L660_N300_ST
= 0x42,
145 SPMI_REGULATOR_SUBTYPE_L660_N600_ST
= 0x43,
146 SPMI_REGULATOR_SUBTYPE_L660_P50
= 0x46,
147 SPMI_REGULATOR_SUBTYPE_L660_P150
= 0x47,
148 SPMI_REGULATOR_SUBTYPE_L660_P600
= 0x49,
149 SPMI_REGULATOR_SUBTYPE_L660_LVP150
= 0x4d,
150 SPMI_REGULATOR_SUBTYPE_L660_LVP600
= 0x4f,
151 SPMI_REGULATOR_SUBTYPE_LV100
= 0x01,
152 SPMI_REGULATOR_SUBTYPE_LV300
= 0x02,
153 SPMI_REGULATOR_SUBTYPE_MV300
= 0x08,
154 SPMI_REGULATOR_SUBTYPE_MV500
= 0x09,
155 SPMI_REGULATOR_SUBTYPE_HDMI
= 0x10,
156 SPMI_REGULATOR_SUBTYPE_OTG
= 0x11,
157 SPMI_REGULATOR_SUBTYPE_5V_BOOST
= 0x01,
158 SPMI_REGULATOR_SUBTYPE_FTS_CTL
= 0x08,
159 SPMI_REGULATOR_SUBTYPE_FTS2p5_CTL
= 0x09,
160 SPMI_REGULATOR_SUBTYPE_FTS426_CTL
= 0x0a,
161 SPMI_REGULATOR_SUBTYPE_BB_2A
= 0x01,
162 SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL1
= 0x0d,
163 SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL2
= 0x0e,
164 SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL3
= 0x0f,
165 SPMI_REGULATOR_SUBTYPE_ULT_HF_CTL4
= 0x10,
166 SPMI_REGULATOR_SUBTYPE_HFS430
= 0x0a,
169 enum spmi_common_regulator_registers
{
170 SPMI_COMMON_REG_DIG_MAJOR_REV
= 0x01,
171 SPMI_COMMON_REG_TYPE
= 0x04,
172 SPMI_COMMON_REG_SUBTYPE
= 0x05,
173 SPMI_COMMON_REG_VOLTAGE_RANGE
= 0x40,
174 SPMI_COMMON_REG_VOLTAGE_SET
= 0x41,
175 SPMI_COMMON_REG_MODE
= 0x45,
176 SPMI_COMMON_REG_ENABLE
= 0x46,
177 SPMI_COMMON_REG_PULL_DOWN
= 0x48,
178 SPMI_COMMON_REG_SOFT_START
= 0x4c,
179 SPMI_COMMON_REG_STEP_CTRL
= 0x61,
183 * Second common register layout used by newer devices starting with ftsmps426
184 * Note that some of the registers from the first common layout remain
185 * unchanged and their definition is not duplicated.
187 enum spmi_ftsmps426_regulator_registers
{
188 SPMI_FTSMPS426_REG_VOLTAGE_LSB
= 0x40,
189 SPMI_FTSMPS426_REG_VOLTAGE_MSB
= 0x41,
190 SPMI_FTSMPS426_REG_VOLTAGE_ULS_LSB
= 0x68,
191 SPMI_FTSMPS426_REG_VOLTAGE_ULS_MSB
= 0x69,
194 enum spmi_vs_registers
{
195 SPMI_VS_REG_OCP
= 0x4a,
196 SPMI_VS_REG_SOFT_START
= 0x4c,
199 enum spmi_boost_registers
{
200 SPMI_BOOST_REG_CURRENT_LIMIT
= 0x4a,
203 enum spmi_boost_byp_registers
{
204 SPMI_BOOST_BYP_REG_CURRENT_LIMIT
= 0x4b,
207 enum spmi_saw3_registers
{
212 SAW3_PMIC_STS
= 0x14,
216 SAW3_AVS_LIMIT
= 0x24,
218 SAW3_AVS_HYSTERESIS
= 0x2C,
219 SAW3_SPM_STS2
= 0x38,
220 SAW3_SPM_PMIC_DATA_3
= 0x4C,
221 SAW3_VERSION
= 0xFD0,
224 /* Used for indexing into ctrl_reg. These are offets from 0x40 */
225 enum spmi_common_control_register_index
{
226 SPMI_COMMON_IDX_VOLTAGE_RANGE
= 0,
227 SPMI_COMMON_IDX_VOLTAGE_SET
= 1,
228 SPMI_COMMON_IDX_MODE
= 5,
229 SPMI_COMMON_IDX_ENABLE
= 6,
232 /* Common regulator control register layout */
233 #define SPMI_COMMON_ENABLE_MASK 0x80
234 #define SPMI_COMMON_ENABLE 0x80
235 #define SPMI_COMMON_DISABLE 0x00
236 #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN3_MASK 0x08
237 #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN2_MASK 0x04
238 #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN1_MASK 0x02
239 #define SPMI_COMMON_ENABLE_FOLLOW_HW_EN0_MASK 0x01
240 #define SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK 0x0f
242 /* Common regulator mode register layout */
243 #define SPMI_COMMON_MODE_HPM_MASK 0x80
244 #define SPMI_COMMON_MODE_AUTO_MASK 0x40
245 #define SPMI_COMMON_MODE_BYPASS_MASK 0x20
246 #define SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK 0x10
247 #define SPMI_COMMON_MODE_FOLLOW_HW_EN3_MASK 0x08
248 #define SPMI_COMMON_MODE_FOLLOW_HW_EN2_MASK 0x04
249 #define SPMI_COMMON_MODE_FOLLOW_HW_EN1_MASK 0x02
250 #define SPMI_COMMON_MODE_FOLLOW_HW_EN0_MASK 0x01
251 #define SPMI_COMMON_MODE_FOLLOW_ALL_MASK 0x1f
253 #define SPMI_FTSMPS426_MODE_BYPASS_MASK 3
254 #define SPMI_FTSMPS426_MODE_RETENTION_MASK 4
255 #define SPMI_FTSMPS426_MODE_LPM_MASK 5
256 #define SPMI_FTSMPS426_MODE_AUTO_MASK 6
257 #define SPMI_FTSMPS426_MODE_HPM_MASK 7
259 #define SPMI_FTSMPS426_MODE_MASK 0x07
261 /* Common regulator pull down control register layout */
262 #define SPMI_COMMON_PULL_DOWN_ENABLE_MASK 0x80
264 /* LDO regulator current limit control register layout */
265 #define SPMI_LDO_CURRENT_LIMIT_ENABLE_MASK 0x80
267 /* LDO regulator soft start control register layout */
268 #define SPMI_LDO_SOFT_START_ENABLE_MASK 0x80
270 /* VS regulator over current protection control register layout */
271 #define SPMI_VS_OCP_OVERRIDE 0x01
272 #define SPMI_VS_OCP_NO_OVERRIDE 0x00
274 /* VS regulator soft start control register layout */
275 #define SPMI_VS_SOFT_START_ENABLE_MASK 0x80
276 #define SPMI_VS_SOFT_START_SEL_MASK 0x03
278 /* Boost regulator current limit control register layout */
279 #define SPMI_BOOST_CURRENT_LIMIT_ENABLE_MASK 0x80
280 #define SPMI_BOOST_CURRENT_LIMIT_MASK 0x07
282 #define SPMI_VS_OCP_DEFAULT_MAX_RETRIES 10
283 #define SPMI_VS_OCP_DEFAULT_RETRY_DELAY_MS 30
284 #define SPMI_VS_OCP_FALL_DELAY_US 90
285 #define SPMI_VS_OCP_FAULT_DELAY_US 20000
287 #define SPMI_FTSMPS_STEP_CTRL_STEP_MASK 0x18
288 #define SPMI_FTSMPS_STEP_CTRL_STEP_SHIFT 3
289 #define SPMI_FTSMPS_STEP_CTRL_DELAY_MASK 0x07
290 #define SPMI_FTSMPS_STEP_CTRL_DELAY_SHIFT 0
292 /* Clock rate in kHz of the FTSMPS regulator reference clock. */
293 #define SPMI_FTSMPS_CLOCK_RATE 19200
295 /* Minimum voltage stepper delay for each step. */
296 #define SPMI_FTSMPS_STEP_DELAY 8
297 #define SPMI_DEFAULT_STEP_DELAY 20
300 * The ratio SPMI_FTSMPS_STEP_MARGIN_NUM/SPMI_FTSMPS_STEP_MARGIN_DEN is used to
301 * adjust the step rate in order to account for oscillator variance.
303 #define SPMI_FTSMPS_STEP_MARGIN_NUM 4
304 #define SPMI_FTSMPS_STEP_MARGIN_DEN 5
306 #define SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK 0x03
307 #define SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT 0
309 /* Clock rate in kHz of the FTSMPS426 regulator reference clock. */
310 #define SPMI_FTSMPS426_CLOCK_RATE 4800
312 #define SPMI_HFS430_CLOCK_RATE 1600
314 /* Minimum voltage stepper delay for each step. */
315 #define SPMI_FTSMPS426_STEP_DELAY 2
318 * The ratio SPMI_FTSMPS426_STEP_MARGIN_NUM/SPMI_FTSMPS426_STEP_MARGIN_DEN is
319 * used to adjust the step rate in order to account for oscillator variance.
321 #define SPMI_FTSMPS426_STEP_MARGIN_NUM 10
322 #define SPMI_FTSMPS426_STEP_MARGIN_DEN 11
325 /* VSET value to decide the range of ULT SMPS */
326 #define ULT_SMPS_RANGE_SPLIT 0x60
329 * struct spmi_voltage_range - regulator set point voltage mapping description
330 * @min_uV: Minimum programmable output voltage resulting from
331 * set point register value 0x00
332 * @max_uV: Maximum programmable output voltage
333 * @step_uV: Output voltage increase resulting from the set point
334 * register value increasing by 1
335 * @set_point_min_uV: Minimum allowed voltage
336 * @set_point_max_uV: Maximum allowed voltage. This may be tweaked in order
337 * to pick which range should be used in the case of
338 * overlapping set points.
339 * @n_voltages: Number of preferred voltage set points present in this
341 * @range_sel: Voltage range register value corresponding to this range
343 * The following relationships must be true for the values used in this struct:
344 * (max_uV - min_uV) % step_uV == 0
345 * (set_point_min_uV - min_uV) % step_uV == 0*
346 * (set_point_max_uV - min_uV) % step_uV == 0*
347 * n_voltages = (set_point_max_uV - set_point_min_uV) / step_uV + 1
349 * *Note, set_point_min_uV == set_point_max_uV == 0 is allowed in order to
350 * specify that the voltage range has meaning, but is not preferred.
352 struct spmi_voltage_range
{
356 int set_point_min_uV
;
357 int set_point_max_uV
;
363 * The ranges specified in the spmi_voltage_set_points struct must be listed
364 * so that range[i].set_point_max_uV < range[i+1].set_point_min_uV.
366 struct spmi_voltage_set_points
{
367 struct spmi_voltage_range
*range
;
372 struct spmi_regulator
{
373 struct regulator_desc desc
;
375 struct delayed_work ocp_work
;
376 struct regmap
*regmap
;
377 struct spmi_voltage_set_points
*set_points
;
378 enum spmi_regulator_logical_type logical_type
;
382 int ocp_retry_delay_ms
;
385 ktime_t vs_enable_time
;
387 struct list_head node
;
390 struct spmi_regulator_mapping
{
391 enum spmi_regulator_type type
;
392 enum spmi_regulator_subtype subtype
;
393 enum spmi_regulator_logical_type logical_type
;
396 const struct regulator_ops
*ops
;
397 struct spmi_voltage_set_points
*set_points
;
401 struct spmi_regulator_data
{
409 #define SPMI_VREG(_type, _subtype, _dig_major_min, _dig_major_max, \
410 _logical_type, _ops_val, _set_points_val, _hpm_min_load) \
412 .type = SPMI_REGULATOR_TYPE_##_type, \
413 .subtype = SPMI_REGULATOR_SUBTYPE_##_subtype, \
414 .revision_min = _dig_major_min, \
415 .revision_max = _dig_major_max, \
416 .logical_type = SPMI_REGULATOR_LOGICAL_TYPE_##_logical_type, \
417 .ops = &spmi_##_ops_val##_ops, \
418 .set_points = &_set_points_val##_set_points, \
419 .hpm_min_load = _hpm_min_load, \
422 #define SPMI_VREG_VS(_subtype, _dig_major_min, _dig_major_max) \
424 .type = SPMI_REGULATOR_TYPE_VS, \
425 .subtype = SPMI_REGULATOR_SUBTYPE_##_subtype, \
426 .revision_min = _dig_major_min, \
427 .revision_max = _dig_major_max, \
428 .logical_type = SPMI_REGULATOR_LOGICAL_TYPE_VS, \
429 .ops = &spmi_vs_ops, \
432 #define SPMI_VOLTAGE_RANGE(_range_sel, _min_uV, _set_point_min_uV, \
433 _set_point_max_uV, _max_uV, _step_uV) \
437 .set_point_min_uV = _set_point_min_uV, \
438 .set_point_max_uV = _set_point_max_uV, \
439 .step_uV = _step_uV, \
440 .range_sel = _range_sel, \
443 #define DEFINE_SPMI_SET_POINTS(name) \
444 struct spmi_voltage_set_points name##_set_points = { \
445 .range = name##_ranges, \
446 .count = ARRAY_SIZE(name##_ranges), \
450 * These tables contain the physically available PMIC regulator voltage setpoint
451 * ranges. Where two ranges overlap in hardware, one of the ranges is trimmed
452 * to ensure that the setpoints available to software are monotonically
453 * increasing and unique. The set_voltage callback functions expect these
454 * properties to hold.
456 static struct spmi_voltage_range pldo_ranges
[] = {
457 SPMI_VOLTAGE_RANGE(2, 750000, 750000, 1537500, 1537500, 12500),
458 SPMI_VOLTAGE_RANGE(3, 1500000, 1550000, 3075000, 3075000, 25000),
459 SPMI_VOLTAGE_RANGE(4, 1750000, 3100000, 4900000, 4900000, 50000),
462 static struct spmi_voltage_range nldo1_ranges
[] = {
463 SPMI_VOLTAGE_RANGE(2, 750000, 750000, 1537500, 1537500, 12500),
466 static struct spmi_voltage_range nldo2_ranges
[] = {
467 SPMI_VOLTAGE_RANGE(0, 375000, 0, 0, 1537500, 12500),
468 SPMI_VOLTAGE_RANGE(1, 375000, 375000, 768750, 768750, 6250),
469 SPMI_VOLTAGE_RANGE(2, 750000, 775000, 1537500, 1537500, 12500),
472 static struct spmi_voltage_range nldo3_ranges
[] = {
473 SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1537500, 1537500, 12500),
474 SPMI_VOLTAGE_RANGE(1, 375000, 0, 0, 1537500, 12500),
475 SPMI_VOLTAGE_RANGE(2, 750000, 0, 0, 1537500, 12500),
478 static struct spmi_voltage_range ln_ldo_ranges
[] = {
479 SPMI_VOLTAGE_RANGE(1, 690000, 690000, 1110000, 1110000, 60000),
480 SPMI_VOLTAGE_RANGE(0, 1380000, 1380000, 2220000, 2220000, 120000),
483 static struct spmi_voltage_range smps_ranges
[] = {
484 SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1562500, 1562500, 12500),
485 SPMI_VOLTAGE_RANGE(1, 1550000, 1575000, 3125000, 3125000, 25000),
488 static struct spmi_voltage_range ftsmps_ranges
[] = {
489 SPMI_VOLTAGE_RANGE(0, 0, 350000, 1275000, 1275000, 5000),
490 SPMI_VOLTAGE_RANGE(1, 0, 1280000, 2040000, 2040000, 10000),
493 static struct spmi_voltage_range ftsmps2p5_ranges
[] = {
494 SPMI_VOLTAGE_RANGE(0, 80000, 350000, 1355000, 1355000, 5000),
495 SPMI_VOLTAGE_RANGE(1, 160000, 1360000, 2200000, 2200000, 10000),
498 static struct spmi_voltage_range ftsmps426_ranges
[] = {
499 SPMI_VOLTAGE_RANGE(0, 0, 320000, 1352000, 1352000, 4000),
502 static struct spmi_voltage_range boost_ranges
[] = {
503 SPMI_VOLTAGE_RANGE(0, 4000000, 4000000, 5550000, 5550000, 50000),
506 static struct spmi_voltage_range boost_byp_ranges
[] = {
507 SPMI_VOLTAGE_RANGE(0, 2500000, 2500000, 5200000, 5650000, 50000),
510 static struct spmi_voltage_range ult_lo_smps_ranges
[] = {
511 SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1562500, 1562500, 12500),
512 SPMI_VOLTAGE_RANGE(1, 750000, 0, 0, 1525000, 25000),
515 static struct spmi_voltage_range ult_ho_smps_ranges
[] = {
516 SPMI_VOLTAGE_RANGE(0, 1550000, 1550000, 2325000, 2325000, 25000),
519 static struct spmi_voltage_range ult_nldo_ranges
[] = {
520 SPMI_VOLTAGE_RANGE(0, 375000, 375000, 1537500, 1537500, 12500),
523 static struct spmi_voltage_range ult_pldo_ranges
[] = {
524 SPMI_VOLTAGE_RANGE(0, 1750000, 1750000, 3337500, 3337500, 12500),
527 static struct spmi_voltage_range pldo660_ranges
[] = {
528 SPMI_VOLTAGE_RANGE(0, 1504000, 1504000, 3544000, 3544000, 8000),
531 static struct spmi_voltage_range nldo660_ranges
[] = {
532 SPMI_VOLTAGE_RANGE(0, 320000, 320000, 1304000, 1304000, 8000),
535 static struct spmi_voltage_range ht_lvpldo_ranges
[] = {
536 SPMI_VOLTAGE_RANGE(0, 1504000, 1504000, 2000000, 2000000, 8000),
539 static struct spmi_voltage_range ht_nldo_ranges
[] = {
540 SPMI_VOLTAGE_RANGE(0, 312000, 312000, 1304000, 1304000, 8000),
543 static struct spmi_voltage_range hfs430_ranges
[] = {
544 SPMI_VOLTAGE_RANGE(0, 320000, 320000, 2040000, 2040000, 8000),
547 static DEFINE_SPMI_SET_POINTS(pldo
);
548 static DEFINE_SPMI_SET_POINTS(nldo1
);
549 static DEFINE_SPMI_SET_POINTS(nldo2
);
550 static DEFINE_SPMI_SET_POINTS(nldo3
);
551 static DEFINE_SPMI_SET_POINTS(ln_ldo
);
552 static DEFINE_SPMI_SET_POINTS(smps
);
553 static DEFINE_SPMI_SET_POINTS(ftsmps
);
554 static DEFINE_SPMI_SET_POINTS(ftsmps2p5
);
555 static DEFINE_SPMI_SET_POINTS(ftsmps426
);
556 static DEFINE_SPMI_SET_POINTS(boost
);
557 static DEFINE_SPMI_SET_POINTS(boost_byp
);
558 static DEFINE_SPMI_SET_POINTS(ult_lo_smps
);
559 static DEFINE_SPMI_SET_POINTS(ult_ho_smps
);
560 static DEFINE_SPMI_SET_POINTS(ult_nldo
);
561 static DEFINE_SPMI_SET_POINTS(ult_pldo
);
562 static DEFINE_SPMI_SET_POINTS(pldo660
);
563 static DEFINE_SPMI_SET_POINTS(nldo660
);
564 static DEFINE_SPMI_SET_POINTS(ht_lvpldo
);
565 static DEFINE_SPMI_SET_POINTS(ht_nldo
);
566 static DEFINE_SPMI_SET_POINTS(hfs430
);
568 static inline int spmi_vreg_read(struct spmi_regulator
*vreg
, u16 addr
, u8
*buf
,
571 return regmap_bulk_read(vreg
->regmap
, vreg
->base
+ addr
, buf
, len
);
574 static inline int spmi_vreg_write(struct spmi_regulator
*vreg
, u16 addr
,
577 return regmap_bulk_write(vreg
->regmap
, vreg
->base
+ addr
, buf
, len
);
580 static int spmi_vreg_update_bits(struct spmi_regulator
*vreg
, u16 addr
, u8 val
,
583 return regmap_update_bits(vreg
->regmap
, vreg
->base
+ addr
, mask
, val
);
586 static int spmi_regulator_vs_enable(struct regulator_dev
*rdev
)
588 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
592 vreg
->vs_enable_time
= ktime_get();
595 return regulator_enable_regmap(rdev
);
598 static int spmi_regulator_vs_ocp(struct regulator_dev
*rdev
)
600 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
601 u8 reg
= SPMI_VS_OCP_OVERRIDE
;
603 return spmi_vreg_write(vreg
, SPMI_VS_REG_OCP
, ®
, 1);
606 static int spmi_regulator_select_voltage(struct spmi_regulator
*vreg
,
607 int min_uV
, int max_uV
)
609 const struct spmi_voltage_range
*range
;
611 int lim_min_uV
, lim_max_uV
, i
, range_id
, range_max_uV
;
612 int selector
, voltage_sel
;
614 /* Check if request voltage is outside of physically settable range. */
615 lim_min_uV
= vreg
->set_points
->range
[0].set_point_min_uV
;
617 vreg
->set_points
->range
[vreg
->set_points
->count
- 1].set_point_max_uV
;
619 if (uV
< lim_min_uV
&& max_uV
>= lim_min_uV
)
622 if (uV
< lim_min_uV
|| uV
> lim_max_uV
) {
624 "request v=[%d, %d] is outside possible v=[%d, %d]\n",
625 min_uV
, max_uV
, lim_min_uV
, lim_max_uV
);
629 /* Find the range which uV is inside of. */
630 for (i
= vreg
->set_points
->count
- 1; i
> 0; i
--) {
631 range_max_uV
= vreg
->set_points
->range
[i
- 1].set_point_max_uV
;
632 if (uV
> range_max_uV
&& range_max_uV
> 0)
637 range
= &vreg
->set_points
->range
[range_id
];
640 * Force uV to be an allowed set point by applying a ceiling function to
643 voltage_sel
= DIV_ROUND_UP(uV
- range
->min_uV
, range
->step_uV
);
644 uV
= voltage_sel
* range
->step_uV
+ range
->min_uV
;
648 "request v=[%d, %d] cannot be met by any set point; "
649 "next set point: %d\n",
655 for (i
= 0; i
< range_id
; i
++)
656 selector
+= vreg
->set_points
->range
[i
].n_voltages
;
657 selector
+= (uV
- range
->set_point_min_uV
) / range
->step_uV
;
662 static int spmi_sw_selector_to_hw(struct spmi_regulator
*vreg
,
663 unsigned selector
, u8
*range_sel
,
666 const struct spmi_voltage_range
*range
, *end
;
669 range
= vreg
->set_points
->range
;
670 end
= range
+ vreg
->set_points
->count
;
672 for (; range
< end
; range
++) {
673 if (selector
< range
->n_voltages
) {
675 * hardware selectors between set point min and real
676 * min are invalid so we ignore them
678 offset
= range
->set_point_min_uV
- range
->min_uV
;
679 offset
/= range
->step_uV
;
680 *voltage_sel
= selector
+ offset
;
681 *range_sel
= range
->range_sel
;
685 selector
-= range
->n_voltages
;
691 static int spmi_hw_selector_to_sw(struct spmi_regulator
*vreg
, u8 hw_sel
,
692 const struct spmi_voltage_range
*range
)
695 unsigned offset
, max_hw_sel
;
696 const struct spmi_voltage_range
*r
= vreg
->set_points
->range
;
697 const struct spmi_voltage_range
*end
= r
+ vreg
->set_points
->count
;
699 for (; r
< end
; r
++) {
700 if (r
== range
&& range
->n_voltages
) {
702 * hardware selectors between set point min and real
703 * min and between set point max and real max are
704 * invalid so we return an error if they're
705 * programmed into the hardware
707 offset
= range
->set_point_min_uV
- range
->min_uV
;
708 offset
/= range
->step_uV
;
712 max_hw_sel
= range
->set_point_max_uV
- range
->min_uV
;
713 max_hw_sel
/= range
->step_uV
;
714 if (hw_sel
> max_hw_sel
)
717 return sw_sel
+ hw_sel
- offset
;
719 sw_sel
+= r
->n_voltages
;
725 static const struct spmi_voltage_range
*
726 spmi_regulator_find_range(struct spmi_regulator
*vreg
)
729 const struct spmi_voltage_range
*range
, *end
;
731 range
= vreg
->set_points
->range
;
732 end
= range
+ vreg
->set_points
->count
;
734 spmi_vreg_read(vreg
, SPMI_COMMON_REG_VOLTAGE_RANGE
, &range_sel
, 1);
736 for (; range
< end
; range
++)
737 if (range
->range_sel
== range_sel
)
743 static int spmi_regulator_select_voltage_same_range(struct spmi_regulator
*vreg
,
744 int min_uV
, int max_uV
)
746 const struct spmi_voltage_range
*range
;
750 range
= spmi_regulator_find_range(vreg
);
752 goto different_range
;
754 if (uV
< range
->min_uV
&& max_uV
>= range
->min_uV
)
757 if (uV
< range
->min_uV
|| uV
> range
->max_uV
) {
758 /* Current range doesn't support the requested voltage. */
759 goto different_range
;
763 * Force uV to be an allowed set point by applying a ceiling function to
766 uV
= DIV_ROUND_UP(uV
- range
->min_uV
, range
->step_uV
);
767 uV
= uV
* range
->step_uV
+ range
->min_uV
;
771 * No set point in the current voltage range is within the
772 * requested min_uV to max_uV range.
774 goto different_range
;
778 for (i
= 0; i
< vreg
->set_points
->count
; i
++) {
779 if (uV
>= vreg
->set_points
->range
[i
].set_point_min_uV
780 && uV
<= vreg
->set_points
->range
[i
].set_point_max_uV
) {
782 (uV
- vreg
->set_points
->range
[i
].set_point_min_uV
)
783 / vreg
->set_points
->range
[i
].step_uV
;
787 selector
+= vreg
->set_points
->range
[i
].n_voltages
;
790 if (selector
>= vreg
->set_points
->n_voltages
)
791 goto different_range
;
796 return spmi_regulator_select_voltage(vreg
, min_uV
, max_uV
);
799 static int spmi_regulator_common_map_voltage(struct regulator_dev
*rdev
,
800 int min_uV
, int max_uV
)
802 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
805 * Favor staying in the current voltage range if possible. This avoids
806 * voltage spikes that occur when changing the voltage range.
808 return spmi_regulator_select_voltage_same_range(vreg
, min_uV
, max_uV
);
812 spmi_regulator_common_set_voltage(struct regulator_dev
*rdev
, unsigned selector
)
814 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
817 u8 range_sel
, voltage_sel
;
819 ret
= spmi_sw_selector_to_hw(vreg
, selector
, &range_sel
, &voltage_sel
);
824 buf
[1] = voltage_sel
;
825 return spmi_vreg_write(vreg
, SPMI_COMMON_REG_VOLTAGE_RANGE
, buf
, 2);
828 static int spmi_regulator_common_list_voltage(struct regulator_dev
*rdev
,
831 static int spmi_regulator_ftsmps426_set_voltage(struct regulator_dev
*rdev
,
834 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
838 mV
= spmi_regulator_common_list_voltage(rdev
, selector
) / 1000;
842 return spmi_vreg_write(vreg
, SPMI_FTSMPS426_REG_VOLTAGE_LSB
, buf
, 2);
845 static int spmi_regulator_set_voltage_time_sel(struct regulator_dev
*rdev
,
846 unsigned int old_selector
, unsigned int new_selector
)
848 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
851 diff_uV
= abs(spmi_regulator_common_list_voltage(rdev
, new_selector
) -
852 spmi_regulator_common_list_voltage(rdev
, old_selector
));
854 return DIV_ROUND_UP(diff_uV
, vreg
->slew_rate
);
857 static int spmi_regulator_common_get_voltage(struct regulator_dev
*rdev
)
859 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
860 const struct spmi_voltage_range
*range
;
863 spmi_vreg_read(vreg
, SPMI_COMMON_REG_VOLTAGE_SET
, &voltage_sel
, 1);
865 range
= spmi_regulator_find_range(vreg
);
869 return spmi_hw_selector_to_sw(vreg
, voltage_sel
, range
);
872 static int spmi_regulator_ftsmps426_get_voltage(struct regulator_dev
*rdev
)
874 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
875 const struct spmi_voltage_range
*range
;
879 spmi_vreg_read(vreg
, SPMI_FTSMPS426_REG_VOLTAGE_LSB
, buf
, 2);
881 uV
= (((unsigned int)buf
[1] << 8) | (unsigned int)buf
[0]) * 1000;
882 range
= vreg
->set_points
->range
;
884 return (uV
- range
->set_point_min_uV
) / range
->step_uV
;
887 static int spmi_regulator_single_map_voltage(struct regulator_dev
*rdev
,
888 int min_uV
, int max_uV
)
890 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
892 return spmi_regulator_select_voltage(vreg
, min_uV
, max_uV
);
895 static int spmi_regulator_single_range_set_voltage(struct regulator_dev
*rdev
,
898 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
902 * Certain types of regulators do not have a range select register so
903 * only voltage set register needs to be written.
905 return spmi_vreg_write(vreg
, SPMI_COMMON_REG_VOLTAGE_SET
, &sel
, 1);
908 static int spmi_regulator_single_range_get_voltage(struct regulator_dev
*rdev
)
910 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
914 ret
= spmi_vreg_read(vreg
, SPMI_COMMON_REG_VOLTAGE_SET
, &selector
, 1);
921 static int spmi_regulator_ult_lo_smps_set_voltage(struct regulator_dev
*rdev
,
924 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
926 u8 range_sel
, voltage_sel
;
928 ret
= spmi_sw_selector_to_hw(vreg
, selector
, &range_sel
, &voltage_sel
);
933 * Calculate VSET based on range
934 * In case of range 0: voltage_sel is a 7 bit value, can be written
935 * witout any modification.
936 * In case of range 1: voltage_sel is a 5 bit value, bits[7-5] set to
940 voltage_sel
|= ULT_SMPS_RANGE_SPLIT
;
942 return spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_VOLTAGE_SET
,
946 static int spmi_regulator_ult_lo_smps_get_voltage(struct regulator_dev
*rdev
)
948 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
949 const struct spmi_voltage_range
*range
;
952 spmi_vreg_read(vreg
, SPMI_COMMON_REG_VOLTAGE_SET
, &voltage_sel
, 1);
954 range
= spmi_regulator_find_range(vreg
);
958 if (range
->range_sel
== 1)
959 voltage_sel
&= ~ULT_SMPS_RANGE_SPLIT
;
961 return spmi_hw_selector_to_sw(vreg
, voltage_sel
, range
);
964 static int spmi_regulator_common_list_voltage(struct regulator_dev
*rdev
,
967 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
971 if (selector
>= vreg
->set_points
->n_voltages
)
974 for (i
= 0; i
< vreg
->set_points
->count
; i
++) {
975 if (selector
< vreg
->set_points
->range
[i
].n_voltages
) {
976 uV
= selector
* vreg
->set_points
->range
[i
].step_uV
977 + vreg
->set_points
->range
[i
].set_point_min_uV
;
981 selector
-= vreg
->set_points
->range
[i
].n_voltages
;
988 spmi_regulator_common_set_bypass(struct regulator_dev
*rdev
, bool enable
)
990 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
991 u8 mask
= SPMI_COMMON_MODE_BYPASS_MASK
;
997 return spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_MODE
, val
, mask
);
1001 spmi_regulator_common_get_bypass(struct regulator_dev
*rdev
, bool *enable
)
1003 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1007 ret
= spmi_vreg_read(vreg
, SPMI_COMMON_REG_MODE
, &val
, 1);
1008 *enable
= val
& SPMI_COMMON_MODE_BYPASS_MASK
;
1013 static unsigned int spmi_regulator_common_get_mode(struct regulator_dev
*rdev
)
1015 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1018 spmi_vreg_read(vreg
, SPMI_COMMON_REG_MODE
, ®
, 1);
1020 reg
&= SPMI_COMMON_MODE_HPM_MASK
| SPMI_COMMON_MODE_AUTO_MASK
;
1023 case SPMI_COMMON_MODE_HPM_MASK
:
1024 return REGULATOR_MODE_NORMAL
;
1025 case SPMI_COMMON_MODE_AUTO_MASK
:
1026 return REGULATOR_MODE_FAST
;
1028 return REGULATOR_MODE_IDLE
;
1032 static unsigned int spmi_regulator_ftsmps426_get_mode(struct regulator_dev
*rdev
)
1034 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1037 spmi_vreg_read(vreg
, SPMI_COMMON_REG_MODE
, ®
, 1);
1040 case SPMI_FTSMPS426_MODE_HPM_MASK
:
1041 return REGULATOR_MODE_NORMAL
;
1042 case SPMI_FTSMPS426_MODE_AUTO_MASK
:
1043 return REGULATOR_MODE_FAST
;
1045 return REGULATOR_MODE_IDLE
;
1050 spmi_regulator_common_set_mode(struct regulator_dev
*rdev
, unsigned int mode
)
1052 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1053 u8 mask
= SPMI_COMMON_MODE_HPM_MASK
| SPMI_COMMON_MODE_AUTO_MASK
;
1057 case REGULATOR_MODE_NORMAL
:
1058 val
= SPMI_COMMON_MODE_HPM_MASK
;
1060 case REGULATOR_MODE_FAST
:
1061 val
= SPMI_COMMON_MODE_AUTO_MASK
;
1068 return spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_MODE
, val
, mask
);
1072 spmi_regulator_ftsmps426_set_mode(struct regulator_dev
*rdev
, unsigned int mode
)
1074 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1075 u8 mask
= SPMI_FTSMPS426_MODE_MASK
;
1079 case REGULATOR_MODE_NORMAL
:
1080 val
= SPMI_FTSMPS426_MODE_HPM_MASK
;
1082 case REGULATOR_MODE_FAST
:
1083 val
= SPMI_FTSMPS426_MODE_AUTO_MASK
;
1085 case REGULATOR_MODE_IDLE
:
1086 val
= SPMI_FTSMPS426_MODE_LPM_MASK
;
1092 return spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_MODE
, val
, mask
);
1096 spmi_regulator_common_set_load(struct regulator_dev
*rdev
, int load_uA
)
1098 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1101 if (load_uA
>= vreg
->hpm_min_load
)
1102 mode
= REGULATOR_MODE_NORMAL
;
1104 mode
= REGULATOR_MODE_IDLE
;
1106 return spmi_regulator_common_set_mode(rdev
, mode
);
1109 static int spmi_regulator_common_set_pull_down(struct regulator_dev
*rdev
)
1111 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1112 unsigned int mask
= SPMI_COMMON_PULL_DOWN_ENABLE_MASK
;
1114 return spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_PULL_DOWN
,
1118 static int spmi_regulator_common_set_soft_start(struct regulator_dev
*rdev
)
1120 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1121 unsigned int mask
= SPMI_LDO_SOFT_START_ENABLE_MASK
;
1123 return spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_SOFT_START
,
1127 static int spmi_regulator_set_ilim(struct regulator_dev
*rdev
, int ilim_uA
)
1129 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1130 enum spmi_regulator_logical_type type
= vreg
->logical_type
;
1131 unsigned int current_reg
;
1133 u8 mask
= SPMI_BOOST_CURRENT_LIMIT_MASK
|
1134 SPMI_BOOST_CURRENT_LIMIT_ENABLE_MASK
;
1135 int max
= (SPMI_BOOST_CURRENT_LIMIT_MASK
+ 1) * 500;
1137 if (type
== SPMI_REGULATOR_LOGICAL_TYPE_BOOST
)
1138 current_reg
= SPMI_BOOST_REG_CURRENT_LIMIT
;
1140 current_reg
= SPMI_BOOST_BYP_REG_CURRENT_LIMIT
;
1142 if (ilim_uA
> max
|| ilim_uA
<= 0)
1145 reg
= (ilim_uA
- 1) / 500;
1146 reg
|= SPMI_BOOST_CURRENT_LIMIT_ENABLE_MASK
;
1148 return spmi_vreg_update_bits(vreg
, current_reg
, reg
, mask
);
1151 static int spmi_regulator_vs_clear_ocp(struct spmi_regulator
*vreg
)
1155 ret
= spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_ENABLE
,
1156 SPMI_COMMON_DISABLE
, SPMI_COMMON_ENABLE_MASK
);
1158 vreg
->vs_enable_time
= ktime_get();
1160 ret
= spmi_vreg_update_bits(vreg
, SPMI_COMMON_REG_ENABLE
,
1161 SPMI_COMMON_ENABLE
, SPMI_COMMON_ENABLE_MASK
);
1166 static void spmi_regulator_vs_ocp_work(struct work_struct
*work
)
1168 struct delayed_work
*dwork
= to_delayed_work(work
);
1169 struct spmi_regulator
*vreg
1170 = container_of(dwork
, struct spmi_regulator
, ocp_work
);
1172 spmi_regulator_vs_clear_ocp(vreg
);
1175 static irqreturn_t
spmi_regulator_vs_ocp_isr(int irq
, void *data
)
1177 struct spmi_regulator
*vreg
= data
;
1178 ktime_t ocp_irq_time
;
1179 s64 ocp_trigger_delay_us
;
1181 ocp_irq_time
= ktime_get();
1182 ocp_trigger_delay_us
= ktime_us_delta(ocp_irq_time
,
1183 vreg
->vs_enable_time
);
1186 * Reset the OCP count if there is a large delay between switch enable
1187 * and when OCP triggers. This is indicative of a hotplug event as
1188 * opposed to a fault.
1190 if (ocp_trigger_delay_us
> SPMI_VS_OCP_FAULT_DELAY_US
)
1191 vreg
->ocp_count
= 0;
1193 /* Wait for switch output to settle back to 0 V after OCP triggered. */
1194 udelay(SPMI_VS_OCP_FALL_DELAY_US
);
1198 if (vreg
->ocp_count
== 1) {
1199 /* Immediately clear the over current condition. */
1200 spmi_regulator_vs_clear_ocp(vreg
);
1201 } else if (vreg
->ocp_count
<= vreg
->ocp_max_retries
) {
1202 /* Schedule the over current clear task to run later. */
1203 schedule_delayed_work(&vreg
->ocp_work
,
1204 msecs_to_jiffies(vreg
->ocp_retry_delay_ms
) + 1);
1207 "OCP triggered %d times; no further retries\n",
1214 #define SAW3_VCTL_DATA_MASK 0xFF
1215 #define SAW3_VCTL_CLEAR_MASK 0x700FF
1216 #define SAW3_AVS_CTL_EN_MASK 0x1
1217 #define SAW3_AVS_CTL_TGGL_MASK 0x8000000
1218 #define SAW3_AVS_CTL_CLEAR_MASK 0x7efc00
1220 static struct regmap
*saw_regmap
;
1222 static void spmi_saw_set_vdd(void *data
)
1224 u32 vctl
, data3
, avs_ctl
, pmic_sts
;
1225 bool avs_enabled
= false;
1226 unsigned long timeout
;
1227 u8 voltage_sel
= *(u8
*)data
;
1229 regmap_read(saw_regmap
, SAW3_AVS_CTL
, &avs_ctl
);
1230 regmap_read(saw_regmap
, SAW3_VCTL
, &vctl
);
1231 regmap_read(saw_regmap
, SAW3_SPM_PMIC_DATA_3
, &data3
);
1233 /* select the band */
1234 vctl
&= ~SAW3_VCTL_CLEAR_MASK
;
1235 vctl
|= (u32
)voltage_sel
;
1237 data3
&= ~SAW3_VCTL_CLEAR_MASK
;
1238 data3
|= (u32
)voltage_sel
;
1240 /* If AVS is enabled, switch it off during the voltage change */
1241 avs_enabled
= SAW3_AVS_CTL_EN_MASK
& avs_ctl
;
1243 avs_ctl
&= ~SAW3_AVS_CTL_TGGL_MASK
;
1244 regmap_write(saw_regmap
, SAW3_AVS_CTL
, avs_ctl
);
1247 regmap_write(saw_regmap
, SAW3_RST
, 1);
1248 regmap_write(saw_regmap
, SAW3_VCTL
, vctl
);
1249 regmap_write(saw_regmap
, SAW3_SPM_PMIC_DATA_3
, data3
);
1251 timeout
= jiffies
+ usecs_to_jiffies(100);
1253 regmap_read(saw_regmap
, SAW3_PMIC_STS
, &pmic_sts
);
1254 pmic_sts
&= SAW3_VCTL_DATA_MASK
;
1255 if (pmic_sts
== (u32
)voltage_sel
)
1260 } while (time_before(jiffies
, timeout
));
1262 /* After successful voltage change, switch the AVS back on */
1265 avs_ctl
&= ~SAW3_AVS_CTL_CLEAR_MASK
;
1266 avs_ctl
|= ((pmic_sts
- 4) << 10);
1267 avs_ctl
|= (pmic_sts
<< 17);
1268 avs_ctl
|= SAW3_AVS_CTL_TGGL_MASK
;
1269 regmap_write(saw_regmap
, SAW3_AVS_CTL
, avs_ctl
);
1274 spmi_regulator_saw_set_voltage(struct regulator_dev
*rdev
, unsigned selector
)
1276 struct spmi_regulator
*vreg
= rdev_get_drvdata(rdev
);
1278 u8 range_sel
, voltage_sel
;
1280 ret
= spmi_sw_selector_to_hw(vreg
, selector
, &range_sel
, &voltage_sel
);
1284 if (0 != range_sel
) {
1285 dev_dbg(&rdev
->dev
, "range_sel = %02X voltage_sel = %02X", \
1286 range_sel
, voltage_sel
);
1290 /* Always do the SAW register writes on the first CPU */
1291 return smp_call_function_single(0, spmi_saw_set_vdd
, \
1292 &voltage_sel
, true);
1295 static struct regulator_ops spmi_saw_ops
= {};
1297 static const struct regulator_ops spmi_smps_ops
= {
1298 .enable
= regulator_enable_regmap
,
1299 .disable
= regulator_disable_regmap
,
1300 .is_enabled
= regulator_is_enabled_regmap
,
1301 .set_voltage_sel
= spmi_regulator_common_set_voltage
,
1302 .set_voltage_time_sel
= spmi_regulator_set_voltage_time_sel
,
1303 .get_voltage_sel
= spmi_regulator_common_get_voltage
,
1304 .map_voltage
= spmi_regulator_common_map_voltage
,
1305 .list_voltage
= spmi_regulator_common_list_voltage
,
1306 .set_mode
= spmi_regulator_common_set_mode
,
1307 .get_mode
= spmi_regulator_common_get_mode
,
1308 .set_load
= spmi_regulator_common_set_load
,
1309 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1312 static const struct regulator_ops spmi_ldo_ops
= {
1313 .enable
= regulator_enable_regmap
,
1314 .disable
= regulator_disable_regmap
,
1315 .is_enabled
= regulator_is_enabled_regmap
,
1316 .set_voltage_sel
= spmi_regulator_common_set_voltage
,
1317 .get_voltage_sel
= spmi_regulator_common_get_voltage
,
1318 .map_voltage
= spmi_regulator_common_map_voltage
,
1319 .list_voltage
= spmi_regulator_common_list_voltage
,
1320 .set_mode
= spmi_regulator_common_set_mode
,
1321 .get_mode
= spmi_regulator_common_get_mode
,
1322 .set_load
= spmi_regulator_common_set_load
,
1323 .set_bypass
= spmi_regulator_common_set_bypass
,
1324 .get_bypass
= spmi_regulator_common_get_bypass
,
1325 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1326 .set_soft_start
= spmi_regulator_common_set_soft_start
,
1329 static const struct regulator_ops spmi_ln_ldo_ops
= {
1330 .enable
= regulator_enable_regmap
,
1331 .disable
= regulator_disable_regmap
,
1332 .is_enabled
= regulator_is_enabled_regmap
,
1333 .set_voltage_sel
= spmi_regulator_common_set_voltage
,
1334 .get_voltage_sel
= spmi_regulator_common_get_voltage
,
1335 .map_voltage
= spmi_regulator_common_map_voltage
,
1336 .list_voltage
= spmi_regulator_common_list_voltage
,
1337 .set_bypass
= spmi_regulator_common_set_bypass
,
1338 .get_bypass
= spmi_regulator_common_get_bypass
,
1341 static const struct regulator_ops spmi_vs_ops
= {
1342 .enable
= spmi_regulator_vs_enable
,
1343 .disable
= regulator_disable_regmap
,
1344 .is_enabled
= regulator_is_enabled_regmap
,
1345 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1346 .set_soft_start
= spmi_regulator_common_set_soft_start
,
1347 .set_over_current_protection
= spmi_regulator_vs_ocp
,
1348 .set_mode
= spmi_regulator_common_set_mode
,
1349 .get_mode
= spmi_regulator_common_get_mode
,
1352 static const struct regulator_ops spmi_boost_ops
= {
1353 .enable
= regulator_enable_regmap
,
1354 .disable
= regulator_disable_regmap
,
1355 .is_enabled
= regulator_is_enabled_regmap
,
1356 .set_voltage_sel
= spmi_regulator_single_range_set_voltage
,
1357 .get_voltage_sel
= spmi_regulator_single_range_get_voltage
,
1358 .map_voltage
= spmi_regulator_single_map_voltage
,
1359 .list_voltage
= spmi_regulator_common_list_voltage
,
1360 .set_input_current_limit
= spmi_regulator_set_ilim
,
1363 static const struct regulator_ops spmi_ftsmps_ops
= {
1364 .enable
= regulator_enable_regmap
,
1365 .disable
= regulator_disable_regmap
,
1366 .is_enabled
= regulator_is_enabled_regmap
,
1367 .set_voltage_sel
= spmi_regulator_common_set_voltage
,
1368 .set_voltage_time_sel
= spmi_regulator_set_voltage_time_sel
,
1369 .get_voltage_sel
= spmi_regulator_common_get_voltage
,
1370 .map_voltage
= spmi_regulator_common_map_voltage
,
1371 .list_voltage
= spmi_regulator_common_list_voltage
,
1372 .set_mode
= spmi_regulator_common_set_mode
,
1373 .get_mode
= spmi_regulator_common_get_mode
,
1374 .set_load
= spmi_regulator_common_set_load
,
1375 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1378 static const struct regulator_ops spmi_ult_lo_smps_ops
= {
1379 .enable
= regulator_enable_regmap
,
1380 .disable
= regulator_disable_regmap
,
1381 .is_enabled
= regulator_is_enabled_regmap
,
1382 .set_voltage_sel
= spmi_regulator_ult_lo_smps_set_voltage
,
1383 .set_voltage_time_sel
= spmi_regulator_set_voltage_time_sel
,
1384 .get_voltage_sel
= spmi_regulator_ult_lo_smps_get_voltage
,
1385 .list_voltage
= spmi_regulator_common_list_voltage
,
1386 .set_mode
= spmi_regulator_common_set_mode
,
1387 .get_mode
= spmi_regulator_common_get_mode
,
1388 .set_load
= spmi_regulator_common_set_load
,
1389 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1392 static const struct regulator_ops spmi_ult_ho_smps_ops
= {
1393 .enable
= regulator_enable_regmap
,
1394 .disable
= regulator_disable_regmap
,
1395 .is_enabled
= regulator_is_enabled_regmap
,
1396 .set_voltage_sel
= spmi_regulator_single_range_set_voltage
,
1397 .set_voltage_time_sel
= spmi_regulator_set_voltage_time_sel
,
1398 .get_voltage_sel
= spmi_regulator_single_range_get_voltage
,
1399 .map_voltage
= spmi_regulator_single_map_voltage
,
1400 .list_voltage
= spmi_regulator_common_list_voltage
,
1401 .set_mode
= spmi_regulator_common_set_mode
,
1402 .get_mode
= spmi_regulator_common_get_mode
,
1403 .set_load
= spmi_regulator_common_set_load
,
1404 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1407 static const struct regulator_ops spmi_ult_ldo_ops
= {
1408 .enable
= regulator_enable_regmap
,
1409 .disable
= regulator_disable_regmap
,
1410 .is_enabled
= regulator_is_enabled_regmap
,
1411 .set_voltage_sel
= spmi_regulator_single_range_set_voltage
,
1412 .get_voltage_sel
= spmi_regulator_single_range_get_voltage
,
1413 .map_voltage
= spmi_regulator_single_map_voltage
,
1414 .list_voltage
= spmi_regulator_common_list_voltage
,
1415 .set_mode
= spmi_regulator_common_set_mode
,
1416 .get_mode
= spmi_regulator_common_get_mode
,
1417 .set_load
= spmi_regulator_common_set_load
,
1418 .set_bypass
= spmi_regulator_common_set_bypass
,
1419 .get_bypass
= spmi_regulator_common_get_bypass
,
1420 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1421 .set_soft_start
= spmi_regulator_common_set_soft_start
,
1424 static const struct regulator_ops spmi_ftsmps426_ops
= {
1425 .enable
= regulator_enable_regmap
,
1426 .disable
= regulator_disable_regmap
,
1427 .is_enabled
= regulator_is_enabled_regmap
,
1428 .set_voltage_sel
= spmi_regulator_ftsmps426_set_voltage
,
1429 .set_voltage_time_sel
= spmi_regulator_set_voltage_time_sel
,
1430 .get_voltage_sel
= spmi_regulator_ftsmps426_get_voltage
,
1431 .map_voltage
= spmi_regulator_single_map_voltage
,
1432 .list_voltage
= spmi_regulator_common_list_voltage
,
1433 .set_mode
= spmi_regulator_ftsmps426_set_mode
,
1434 .get_mode
= spmi_regulator_ftsmps426_get_mode
,
1435 .set_load
= spmi_regulator_common_set_load
,
1436 .set_pull_down
= spmi_regulator_common_set_pull_down
,
1439 static const struct regulator_ops spmi_hfs430_ops
= {
1440 .enable
= regulator_enable_regmap
,
1441 .disable
= regulator_disable_regmap
,
1442 .is_enabled
= regulator_is_enabled_regmap
,
1443 .set_voltage_sel
= spmi_regulator_ftsmps426_set_voltage
,
1444 .set_voltage_time_sel
= spmi_regulator_set_voltage_time_sel
,
1445 .get_voltage_sel
= spmi_regulator_ftsmps426_get_voltage
,
1446 .map_voltage
= spmi_regulator_single_map_voltage
,
1447 .list_voltage
= spmi_regulator_common_list_voltage
,
1448 .set_mode
= spmi_regulator_ftsmps426_set_mode
,
1449 .get_mode
= spmi_regulator_ftsmps426_get_mode
,
1452 /* Maximum possible digital major revision value */
1455 static const struct spmi_regulator_mapping supported_regulators
[] = {
1456 /* type subtype dig_min dig_max ltype ops setpoints hpm_min */
1457 SPMI_VREG(BUCK
, GP_CTL
, 0, INF
, SMPS
, smps
, smps
, 100000),
1458 SPMI_VREG(BUCK
, HFS430
, 0, INF
, HFS430
, hfs430
, hfs430
, 10000),
1459 SPMI_VREG(LDO
, N300
, 0, INF
, LDO
, ldo
, nldo1
, 10000),
1460 SPMI_VREG(LDO
, N600
, 0, 0, LDO
, ldo
, nldo2
, 10000),
1461 SPMI_VREG(LDO
, N1200
, 0, 0, LDO
, ldo
, nldo2
, 10000),
1462 SPMI_VREG(LDO
, N600
, 1, INF
, LDO
, ldo
, nldo3
, 10000),
1463 SPMI_VREG(LDO
, N1200
, 1, INF
, LDO
, ldo
, nldo3
, 10000),
1464 SPMI_VREG(LDO
, N600_ST
, 0, 0, LDO
, ldo
, nldo2
, 10000),
1465 SPMI_VREG(LDO
, N1200_ST
, 0, 0, LDO
, ldo
, nldo2
, 10000),
1466 SPMI_VREG(LDO
, N600_ST
, 1, INF
, LDO
, ldo
, nldo3
, 10000),
1467 SPMI_VREG(LDO
, N1200_ST
, 1, INF
, LDO
, ldo
, nldo3
, 10000),
1468 SPMI_VREG(LDO
, P50
, 0, INF
, LDO
, ldo
, pldo
, 5000),
1469 SPMI_VREG(LDO
, P150
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1470 SPMI_VREG(LDO
, P300
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1471 SPMI_VREG(LDO
, P600
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1472 SPMI_VREG(LDO
, P1200
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1473 SPMI_VREG(LDO
, LN
, 0, INF
, LN_LDO
, ln_ldo
, ln_ldo
, 0),
1474 SPMI_VREG(LDO
, LV_P50
, 0, INF
, LDO
, ldo
, pldo
, 5000),
1475 SPMI_VREG(LDO
, LV_P150
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1476 SPMI_VREG(LDO
, LV_P300
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1477 SPMI_VREG(LDO
, LV_P600
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1478 SPMI_VREG(LDO
, LV_P1200
, 0, INF
, LDO
, ldo
, pldo
, 10000),
1479 SPMI_VREG(LDO
, HT_N300_ST
, 0, INF
, FTSMPS426
, ftsmps426
,
1481 SPMI_VREG(LDO
, HT_N600_ST
, 0, INF
, FTSMPS426
, ftsmps426
,
1483 SPMI_VREG(LDO
, HT_N1200_ST
, 0, INF
, FTSMPS426
, ftsmps426
,
1485 SPMI_VREG(LDO
, HT_LVP150
, 0, INF
, FTSMPS426
, ftsmps426
,
1487 SPMI_VREG(LDO
, HT_LVP300
, 0, INF
, FTSMPS426
, ftsmps426
,
1489 SPMI_VREG(LDO
, L660_N300_ST
, 0, INF
, FTSMPS426
, ftsmps426
,
1491 SPMI_VREG(LDO
, L660_N600_ST
, 0, INF
, FTSMPS426
, ftsmps426
,
1493 SPMI_VREG(LDO
, L660_P50
, 0, INF
, FTSMPS426
, ftsmps426
,
1495 SPMI_VREG(LDO
, L660_P150
, 0, INF
, FTSMPS426
, ftsmps426
,
1497 SPMI_VREG(LDO
, L660_P600
, 0, INF
, FTSMPS426
, ftsmps426
,
1499 SPMI_VREG(LDO
, L660_LVP150
, 0, INF
, FTSMPS426
, ftsmps426
,
1501 SPMI_VREG(LDO
, L660_LVP600
, 0, INF
, FTSMPS426
, ftsmps426
,
1503 SPMI_VREG_VS(LV100
, 0, INF
),
1504 SPMI_VREG_VS(LV300
, 0, INF
),
1505 SPMI_VREG_VS(MV300
, 0, INF
),
1506 SPMI_VREG_VS(MV500
, 0, INF
),
1507 SPMI_VREG_VS(HDMI
, 0, INF
),
1508 SPMI_VREG_VS(OTG
, 0, INF
),
1509 SPMI_VREG(BOOST
, 5V_BOOST
, 0, INF
, BOOST
, boost
, boost
, 0),
1510 SPMI_VREG(FTS
, FTS_CTL
, 0, INF
, FTSMPS
, ftsmps
, ftsmps
, 100000),
1511 SPMI_VREG(FTS
, FTS2p5_CTL
, 0, INF
, FTSMPS
, ftsmps
, ftsmps2p5
, 100000),
1512 SPMI_VREG(FTS
, FTS426_CTL
, 0, INF
, FTSMPS426
, ftsmps426
, ftsmps426
, 100000),
1513 SPMI_VREG(BOOST_BYP
, BB_2A
, 0, INF
, BOOST_BYP
, boost
, boost_byp
, 0),
1514 SPMI_VREG(ULT_BUCK
, ULT_HF_CTL1
, 0, INF
, ULT_LO_SMPS
, ult_lo_smps
,
1515 ult_lo_smps
, 100000),
1516 SPMI_VREG(ULT_BUCK
, ULT_HF_CTL2
, 0, INF
, ULT_LO_SMPS
, ult_lo_smps
,
1517 ult_lo_smps
, 100000),
1518 SPMI_VREG(ULT_BUCK
, ULT_HF_CTL3
, 0, INF
, ULT_LO_SMPS
, ult_lo_smps
,
1519 ult_lo_smps
, 100000),
1520 SPMI_VREG(ULT_BUCK
, ULT_HF_CTL4
, 0, INF
, ULT_HO_SMPS
, ult_ho_smps
,
1521 ult_ho_smps
, 100000),
1522 SPMI_VREG(ULT_LDO
, N300_ST
, 0, INF
, ULT_LDO
, ult_ldo
, ult_nldo
, 10000),
1523 SPMI_VREG(ULT_LDO
, N600_ST
, 0, INF
, ULT_LDO
, ult_ldo
, ult_nldo
, 10000),
1524 SPMI_VREG(ULT_LDO
, N900_ST
, 0, INF
, ULT_LDO
, ult_ldo
, ult_nldo
, 10000),
1525 SPMI_VREG(ULT_LDO
, N1200_ST
, 0, INF
, ULT_LDO
, ult_ldo
, ult_nldo
, 10000),
1526 SPMI_VREG(ULT_LDO
, LV_P50
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 10000),
1527 SPMI_VREG(ULT_LDO
, LV_P150
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 10000),
1528 SPMI_VREG(ULT_LDO
, LV_P300
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 10000),
1529 SPMI_VREG(ULT_LDO
, LV_P450
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 10000),
1530 SPMI_VREG(ULT_LDO
, P600
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 10000),
1531 SPMI_VREG(ULT_LDO
, P300
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 10000),
1532 SPMI_VREG(ULT_LDO
, P150
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 10000),
1533 SPMI_VREG(ULT_LDO
, P50
, 0, INF
, ULT_LDO
, ult_ldo
, ult_pldo
, 5000),
1536 static void spmi_calculate_num_voltages(struct spmi_voltage_set_points
*points
)
1539 struct spmi_voltage_range
*range
= points
->range
;
1541 for (; range
< points
->range
+ points
->count
; range
++) {
1543 if (range
->set_point_max_uV
) {
1544 n
= range
->set_point_max_uV
- range
->set_point_min_uV
;
1545 n
= (n
/ range
->step_uV
) + 1;
1547 range
->n_voltages
= n
;
1548 points
->n_voltages
+= n
;
1552 static int spmi_regulator_match(struct spmi_regulator
*vreg
, u16 force_type
)
1554 const struct spmi_regulator_mapping
*mapping
;
1557 u8 version
[SPMI_COMMON_REG_SUBTYPE
- SPMI_COMMON_REG_DIG_MAJOR_REV
+ 1];
1560 ret
= spmi_vreg_read(vreg
, SPMI_COMMON_REG_DIG_MAJOR_REV
, version
,
1561 ARRAY_SIZE(version
));
1563 dev_dbg(vreg
->dev
, "could not read version registers\n");
1566 dig_major_rev
= version
[SPMI_COMMON_REG_DIG_MAJOR_REV
1567 - SPMI_COMMON_REG_DIG_MAJOR_REV
];
1570 type
= version
[SPMI_COMMON_REG_TYPE
-
1571 SPMI_COMMON_REG_DIG_MAJOR_REV
];
1572 subtype
= version
[SPMI_COMMON_REG_SUBTYPE
-
1573 SPMI_COMMON_REG_DIG_MAJOR_REV
];
1575 type
= force_type
>> 8;
1576 subtype
= force_type
;
1579 for (i
= 0; i
< ARRAY_SIZE(supported_regulators
); i
++) {
1580 mapping
= &supported_regulators
[i
];
1581 if (mapping
->type
== type
&& mapping
->subtype
== subtype
1582 && mapping
->revision_min
<= dig_major_rev
1583 && mapping
->revision_max
>= dig_major_rev
)
1588 "unsupported regulator: name=%s type=0x%02X, subtype=0x%02X, dig major rev=0x%02X\n",
1589 vreg
->desc
.name
, type
, subtype
, dig_major_rev
);
1594 vreg
->logical_type
= mapping
->logical_type
;
1595 vreg
->set_points
= mapping
->set_points
;
1596 vreg
->hpm_min_load
= mapping
->hpm_min_load
;
1597 vreg
->desc
.ops
= mapping
->ops
;
1599 if (mapping
->set_points
) {
1600 if (!mapping
->set_points
->n_voltages
)
1601 spmi_calculate_num_voltages(mapping
->set_points
);
1602 vreg
->desc
.n_voltages
= mapping
->set_points
->n_voltages
;
1608 static int spmi_regulator_init_slew_rate(struct spmi_regulator
*vreg
)
1612 int step
, delay
, slew_rate
, step_delay
;
1613 const struct spmi_voltage_range
*range
;
1615 ret
= spmi_vreg_read(vreg
, SPMI_COMMON_REG_STEP_CTRL
, ®
, 1);
1617 dev_err(vreg
->dev
, "spmi read failed, ret=%d\n", ret
);
1621 range
= spmi_regulator_find_range(vreg
);
1625 switch (vreg
->logical_type
) {
1626 case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS
:
1627 step_delay
= SPMI_FTSMPS_STEP_DELAY
;
1630 step_delay
= SPMI_DEFAULT_STEP_DELAY
;
1634 step
= reg
& SPMI_FTSMPS_STEP_CTRL_STEP_MASK
;
1635 step
>>= SPMI_FTSMPS_STEP_CTRL_STEP_SHIFT
;
1637 delay
= reg
& SPMI_FTSMPS_STEP_CTRL_DELAY_MASK
;
1638 delay
>>= SPMI_FTSMPS_STEP_CTRL_DELAY_SHIFT
;
1640 /* slew_rate has units of uV/us */
1641 slew_rate
= SPMI_FTSMPS_CLOCK_RATE
* range
->step_uV
* (1 << step
);
1642 slew_rate
/= 1000 * (step_delay
<< delay
);
1643 slew_rate
*= SPMI_FTSMPS_STEP_MARGIN_NUM
;
1644 slew_rate
/= SPMI_FTSMPS_STEP_MARGIN_DEN
;
1646 /* Ensure that the slew rate is greater than 0 */
1647 vreg
->slew_rate
= max(slew_rate
, 1);
1652 static int spmi_regulator_init_slew_rate_ftsmps426(struct spmi_regulator
*vreg
,
1657 int delay
, slew_rate
;
1658 const struct spmi_voltage_range
*range
= &vreg
->set_points
->range
[0];
1660 ret
= spmi_vreg_read(vreg
, SPMI_COMMON_REG_STEP_CTRL
, ®
, 1);
1662 dev_err(vreg
->dev
, "spmi read failed, ret=%d\n", ret
);
1666 delay
= reg
& SPMI_FTSMPS426_STEP_CTRL_DELAY_MASK
;
1667 delay
>>= SPMI_FTSMPS426_STEP_CTRL_DELAY_SHIFT
;
1669 /* slew_rate has units of uV/us */
1670 slew_rate
= clock_rate
* range
->step_uV
;
1671 slew_rate
/= 1000 * (SPMI_FTSMPS426_STEP_DELAY
<< delay
);
1672 slew_rate
*= SPMI_FTSMPS426_STEP_MARGIN_NUM
;
1673 slew_rate
/= SPMI_FTSMPS426_STEP_MARGIN_DEN
;
1675 /* Ensure that the slew rate is greater than 0 */
1676 vreg
->slew_rate
= max(slew_rate
, 1);
1681 static int spmi_regulator_init_registers(struct spmi_regulator
*vreg
,
1682 const struct spmi_regulator_init_data
*data
)
1685 enum spmi_regulator_logical_type type
;
1686 u8 ctrl_reg
[8], reg
, mask
;
1688 type
= vreg
->logical_type
;
1690 ret
= spmi_vreg_read(vreg
, SPMI_COMMON_REG_VOLTAGE_RANGE
, ctrl_reg
, 8);
1694 /* Set up enable pin control. */
1695 if (!(data
->pin_ctrl_enable
& SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT
)) {
1697 case SPMI_REGULATOR_LOGICAL_TYPE_SMPS
:
1698 case SPMI_REGULATOR_LOGICAL_TYPE_LDO
:
1699 case SPMI_REGULATOR_LOGICAL_TYPE_VS
:
1700 ctrl_reg
[SPMI_COMMON_IDX_ENABLE
] &=
1701 ~SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK
;
1702 ctrl_reg
[SPMI_COMMON_IDX_ENABLE
] |=
1703 data
->pin_ctrl_enable
& SPMI_COMMON_ENABLE_FOLLOW_ALL_MASK
;
1710 /* Set up mode pin control. */
1711 if (!(data
->pin_ctrl_hpm
& SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT
)) {
1713 case SPMI_REGULATOR_LOGICAL_TYPE_SMPS
:
1714 case SPMI_REGULATOR_LOGICAL_TYPE_LDO
:
1715 ctrl_reg
[SPMI_COMMON_IDX_MODE
] &=
1716 ~SPMI_COMMON_MODE_FOLLOW_ALL_MASK
;
1717 ctrl_reg
[SPMI_COMMON_IDX_MODE
] |=
1718 data
->pin_ctrl_hpm
& SPMI_COMMON_MODE_FOLLOW_ALL_MASK
;
1720 case SPMI_REGULATOR_LOGICAL_TYPE_VS
:
1721 case SPMI_REGULATOR_LOGICAL_TYPE_ULT_LO_SMPS
:
1722 case SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS
:
1723 case SPMI_REGULATOR_LOGICAL_TYPE_ULT_LDO
:
1724 ctrl_reg
[SPMI_COMMON_IDX_MODE
] &=
1725 ~SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK
;
1726 ctrl_reg
[SPMI_COMMON_IDX_MODE
] |=
1727 data
->pin_ctrl_hpm
& SPMI_COMMON_MODE_FOLLOW_AWAKE_MASK
;
1734 /* Write back any control register values that were modified. */
1735 ret
= spmi_vreg_write(vreg
, SPMI_COMMON_REG_VOLTAGE_RANGE
, ctrl_reg
, 8);
1739 /* Set soft start strength and over current protection for VS. */
1740 if (type
== SPMI_REGULATOR_LOGICAL_TYPE_VS
) {
1741 if (data
->vs_soft_start_strength
1742 != SPMI_VS_SOFT_START_STR_HW_DEFAULT
) {
1743 reg
= data
->vs_soft_start_strength
1744 & SPMI_VS_SOFT_START_SEL_MASK
;
1745 mask
= SPMI_VS_SOFT_START_SEL_MASK
;
1746 return spmi_vreg_update_bits(vreg
,
1747 SPMI_VS_REG_SOFT_START
,
1755 static void spmi_regulator_get_dt_config(struct spmi_regulator
*vreg
,
1756 struct device_node
*node
, struct spmi_regulator_init_data
*data
)
1759 * Initialize configuration parameters to use hardware default in case
1760 * no value is specified via device tree.
1762 data
->pin_ctrl_enable
= SPMI_REGULATOR_PIN_CTRL_ENABLE_HW_DEFAULT
;
1763 data
->pin_ctrl_hpm
= SPMI_REGULATOR_PIN_CTRL_HPM_HW_DEFAULT
;
1764 data
->vs_soft_start_strength
= SPMI_VS_SOFT_START_STR_HW_DEFAULT
;
1766 /* These bindings are optional, so it is okay if they aren't found. */
1767 of_property_read_u32(node
, "qcom,ocp-max-retries",
1768 &vreg
->ocp_max_retries
);
1769 of_property_read_u32(node
, "qcom,ocp-retry-delay",
1770 &vreg
->ocp_retry_delay_ms
);
1771 of_property_read_u32(node
, "qcom,pin-ctrl-enable",
1772 &data
->pin_ctrl_enable
);
1773 of_property_read_u32(node
, "qcom,pin-ctrl-hpm", &data
->pin_ctrl_hpm
);
1774 of_property_read_u32(node
, "qcom,vs-soft-start-strength",
1775 &data
->vs_soft_start_strength
);
1778 static unsigned int spmi_regulator_of_map_mode(unsigned int mode
)
1781 return REGULATOR_MODE_NORMAL
;
1783 return REGULATOR_MODE_FAST
;
1785 return REGULATOR_MODE_IDLE
;
1788 static int spmi_regulator_of_parse(struct device_node
*node
,
1789 const struct regulator_desc
*desc
,
1790 struct regulator_config
*config
)
1792 struct spmi_regulator_init_data data
= { };
1793 struct spmi_regulator
*vreg
= config
->driver_data
;
1794 struct device
*dev
= config
->dev
;
1797 spmi_regulator_get_dt_config(vreg
, node
, &data
);
1799 if (!vreg
->ocp_max_retries
)
1800 vreg
->ocp_max_retries
= SPMI_VS_OCP_DEFAULT_MAX_RETRIES
;
1801 if (!vreg
->ocp_retry_delay_ms
)
1802 vreg
->ocp_retry_delay_ms
= SPMI_VS_OCP_DEFAULT_RETRY_DELAY_MS
;
1804 ret
= spmi_regulator_init_registers(vreg
, &data
);
1806 dev_err(dev
, "common initialization failed, ret=%d\n", ret
);
1810 switch (vreg
->logical_type
) {
1811 case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS
:
1812 case SPMI_REGULATOR_LOGICAL_TYPE_ULT_LO_SMPS
:
1813 case SPMI_REGULATOR_LOGICAL_TYPE_ULT_HO_SMPS
:
1814 case SPMI_REGULATOR_LOGICAL_TYPE_SMPS
:
1815 ret
= spmi_regulator_init_slew_rate(vreg
);
1819 case SPMI_REGULATOR_LOGICAL_TYPE_FTSMPS426
:
1820 ret
= spmi_regulator_init_slew_rate_ftsmps426(vreg
,
1821 SPMI_FTSMPS426_CLOCK_RATE
);
1825 case SPMI_REGULATOR_LOGICAL_TYPE_HFS430
:
1826 ret
= spmi_regulator_init_slew_rate_ftsmps426(vreg
,
1827 SPMI_HFS430_CLOCK_RATE
);
1835 if (vreg
->logical_type
!= SPMI_REGULATOR_LOGICAL_TYPE_VS
)
1838 if (vreg
->ocp_irq
) {
1839 ret
= devm_request_irq(dev
, vreg
->ocp_irq
,
1840 spmi_regulator_vs_ocp_isr
, IRQF_TRIGGER_RISING
, "ocp",
1843 dev_err(dev
, "failed to request irq %d, ret=%d\n",
1844 vreg
->ocp_irq
, ret
);
1848 ret
= devm_delayed_work_autocancel(dev
, &vreg
->ocp_work
,
1849 spmi_regulator_vs_ocp_work
);
1857 static const struct spmi_regulator_data pm8941_regulators
[] = {
1858 { "s1", 0x1400, "vdd_s1", },
1859 { "s2", 0x1700, "vdd_s2", },
1860 { "s3", 0x1a00, "vdd_s3", },
1862 { "l1", 0x4000, "vdd_l1_l3", },
1863 { "l2", 0x4100, "vdd_l2_lvs_1_2_3", },
1864 { "l3", 0x4200, "vdd_l1_l3", },
1865 { "l4", 0x4300, "vdd_l4_l11", },
1866 { "l5", 0x4400, "vdd_l5_l7", NULL
, 0x0410 },
1867 { "l6", 0x4500, "vdd_l6_l12_l14_l15", },
1868 { "l7", 0x4600, "vdd_l5_l7", NULL
, 0x0410 },
1869 { "l8", 0x4700, "vdd_l8_l16_l18_19", },
1870 { "l9", 0x4800, "vdd_l9_l10_l17_l22", },
1871 { "l10", 0x4900, "vdd_l9_l10_l17_l22", },
1872 { "l11", 0x4a00, "vdd_l4_l11", },
1873 { "l12", 0x4b00, "vdd_l6_l12_l14_l15", },
1874 { "l13", 0x4c00, "vdd_l13_l20_l23_l24", },
1875 { "l14", 0x4d00, "vdd_l6_l12_l14_l15", },
1876 { "l15", 0x4e00, "vdd_l6_l12_l14_l15", },
1877 { "l16", 0x4f00, "vdd_l8_l16_l18_19", },
1878 { "l17", 0x5000, "vdd_l9_l10_l17_l22", },
1879 { "l18", 0x5100, "vdd_l8_l16_l18_19", },
1880 { "l19", 0x5200, "vdd_l8_l16_l18_19", },
1881 { "l20", 0x5300, "vdd_l13_l20_l23_l24", },
1882 { "l21", 0x5400, "vdd_l21", },
1883 { "l22", 0x5500, "vdd_l9_l10_l17_l22", },
1884 { "l23", 0x5600, "vdd_l13_l20_l23_l24", },
1885 { "l24", 0x5700, "vdd_l13_l20_l23_l24", },
1886 { "lvs1", 0x8000, "vdd_l2_lvs_1_2_3", },
1887 { "lvs2", 0x8100, "vdd_l2_lvs_1_2_3", },
1888 { "lvs3", 0x8200, "vdd_l2_lvs_1_2_3", },
1889 { "5vs1", 0x8300, "vin_5vs", "ocp-5vs1", },
1890 { "5vs2", 0x8400, "vin_5vs", "ocp-5vs2", },
1894 static const struct spmi_regulator_data pm8841_regulators
[] = {
1895 { "s1", 0x1400, "vdd_s1", },
1896 { "s2", 0x1700, "vdd_s2", NULL
, 0x1c08 },
1897 { "s3", 0x1a00, "vdd_s3", },
1898 { "s4", 0x1d00, "vdd_s4", NULL
, 0x1c08 },
1899 { "s5", 0x2000, "vdd_s5", NULL
, 0x1c08 },
1900 { "s6", 0x2300, "vdd_s6", NULL
, 0x1c08 },
1901 { "s7", 0x2600, "vdd_s7", NULL
, 0x1c08 },
1902 { "s8", 0x2900, "vdd_s8", NULL
, 0x1c08 },
1906 static const struct spmi_regulator_data pm8916_regulators
[] = {
1907 { "s1", 0x1400, "vdd_s1", },
1908 { "s2", 0x1700, "vdd_s2", },
1909 { "s3", 0x1a00, "vdd_s3", },
1910 { "s4", 0x1d00, "vdd_s4", },
1911 { "l1", 0x4000, "vdd_l1_l3", },
1912 { "l2", 0x4100, "vdd_l2", },
1913 { "l3", 0x4200, "vdd_l1_l3", },
1914 { "l4", 0x4300, "vdd_l4_l5_l6", },
1915 { "l5", 0x4400, "vdd_l4_l5_l6", },
1916 { "l6", 0x4500, "vdd_l4_l5_l6", },
1917 { "l7", 0x4600, "vdd_l7", },
1918 { "l8", 0x4700, "vdd_l8_l11_l14_l15_l16", },
1919 { "l9", 0x4800, "vdd_l9_l10_l12_l13_l17_l18", },
1920 { "l10", 0x4900, "vdd_l9_l10_l12_l13_l17_l18", },
1921 { "l11", 0x4a00, "vdd_l8_l11_l14_l15_l16", },
1922 { "l12", 0x4b00, "vdd_l9_l10_l12_l13_l17_l18", },
1923 { "l13", 0x4c00, "vdd_l9_l10_l12_l13_l17_l18", },
1924 { "l14", 0x4d00, "vdd_l8_l11_l14_l15_l16", },
1925 { "l15", 0x4e00, "vdd_l8_l11_l14_l15_l16", },
1926 { "l16", 0x4f00, "vdd_l8_l11_l14_l15_l16", },
1927 { "l17", 0x5000, "vdd_l9_l10_l12_l13_l17_l18", },
1928 { "l18", 0x5100, "vdd_l9_l10_l12_l13_l17_l18", },
1932 static const struct spmi_regulator_data pm8950_regulators
[] = {
1933 { "s1", 0x1400, "vdd_s1", },
1934 { "s2", 0x1700, "vdd_s2", },
1935 { "s3", 0x1a00, "vdd_s3", },
1936 { "s4", 0x1d00, "vdd_s4", },
1937 { "s5", 0x2000, "vdd_s5", },
1938 { "s6", 0x2300, "vdd_s6", },
1939 { "l1", 0x4000, "vdd_l1_l19", },
1940 { "l2", 0x4100, "vdd_l2_l23", },
1941 { "l3", 0x4200, "vdd_l3", },
1942 { "l4", 0x4300, "vdd_l4_l5_l6_l7_l16", },
1943 { "l5", 0x4400, "vdd_l4_l5_l6_l7_l16", },
1944 { "l6", 0x4500, "vdd_l4_l5_l6_l7_l16", },
1945 { "l7", 0x4600, "vdd_l4_l5_l6_l7_l16", },
1946 { "l8", 0x4700, "vdd_l8_l11_l12_l17_l22", },
1947 { "l9", 0x4800, "vdd_l9_l10_l13_l14_l15_l18", },
1948 { "l10", 0x4900, "vdd_l9_l10_l13_l14_l15_l18", },
1949 { "l11", 0x4a00, "vdd_l8_l11_l12_l17_l22", },
1950 { "l12", 0x4b00, "vdd_l8_l11_l12_l17_l22", },
1951 { "l13", 0x4c00, "vdd_l9_l10_l13_l14_l15_l18", },
1952 { "l14", 0x4d00, "vdd_l9_l10_l13_l14_l15_l18", },
1953 { "l15", 0x4e00, "vdd_l9_l10_l13_l14_l15_l18", },
1954 { "l16", 0x4f00, "vdd_l4_l5_l6_l7_l16", },
1955 { "l17", 0x5000, "vdd_l8_l11_l12_l17_l22", },
1956 { "l18", 0x5100, "vdd_l9_l10_l13_l14_l15_l18", },
1957 { "l19", 0x5200, "vdd_l1_l19", },
1958 { "l20", 0x5300, "vdd_l20", },
1959 { "l21", 0x5400, "vdd_l21", },
1960 { "l22", 0x5500, "vdd_l8_l11_l12_l17_l22", },
1961 { "l23", 0x5600, "vdd_l2_l23", },
1965 static const struct spmi_regulator_data pm8994_regulators
[] = {
1966 { "s1", 0x1400, "vdd_s1", },
1967 { "s2", 0x1700, "vdd_s2", },
1968 { "s3", 0x1a00, "vdd_s3", },
1969 { "s4", 0x1d00, "vdd_s4", },
1970 { "s5", 0x2000, "vdd_s5", },
1971 { "s6", 0x2300, "vdd_s6", },
1972 { "s7", 0x2600, "vdd_s7", },
1973 { "s8", 0x2900, "vdd_s8", },
1974 { "s9", 0x2c00, "vdd_s9", },
1975 { "s10", 0x2f00, "vdd_s10", },
1976 { "s11", 0x3200, "vdd_s11", },
1977 { "s12", 0x3500, "vdd_s12", },
1978 { "l1", 0x4000, "vdd_l1", },
1979 { "l2", 0x4100, "vdd_l2_l26_l28", },
1980 { "l3", 0x4200, "vdd_l3_l11", },
1981 { "l4", 0x4300, "vdd_l4_l27_l31", },
1982 { "l5", 0x4400, "vdd_l5_l7", },
1983 { "l6", 0x4500, "vdd_l6_l12_l32", },
1984 { "l7", 0x4600, "vdd_l5_l7", },
1985 { "l8", 0x4700, "vdd_l8_l16_l30", },
1986 { "l9", 0x4800, "vdd_l9_l10_l18_l22", },
1987 { "l10", 0x4900, "vdd_l9_l10_l18_l22", },
1988 { "l11", 0x4a00, "vdd_l3_l11", },
1989 { "l12", 0x4b00, "vdd_l6_l12_l32", },
1990 { "l13", 0x4c00, "vdd_l13_l19_l23_l24", },
1991 { "l14", 0x4d00, "vdd_l14_l15", },
1992 { "l15", 0x4e00, "vdd_l14_l15", },
1993 { "l16", 0x4f00, "vdd_l8_l16_l30", },
1994 { "l17", 0x5000, "vdd_l17_l29", },
1995 { "l18", 0x5100, "vdd_l9_l10_l18_l22", },
1996 { "l19", 0x5200, "vdd_l13_l19_l23_l24", },
1997 { "l20", 0x5300, "vdd_l20_l21", },
1998 { "l21", 0x5400, "vdd_l20_l21", },
1999 { "l22", 0x5500, "vdd_l9_l10_l18_l22", },
2000 { "l23", 0x5600, "vdd_l13_l19_l23_l24", },
2001 { "l24", 0x5700, "vdd_l13_l19_l23_l24", },
2002 { "l25", 0x5800, "vdd_l25", },
2003 { "l26", 0x5900, "vdd_l2_l26_l28", },
2004 { "l27", 0x5a00, "vdd_l4_l27_l31", },
2005 { "l28", 0x5b00, "vdd_l2_l26_l28", },
2006 { "l29", 0x5c00, "vdd_l17_l29", },
2007 { "l30", 0x5d00, "vdd_l8_l16_l30", },
2008 { "l31", 0x5e00, "vdd_l4_l27_l31", },
2009 { "l32", 0x5f00, "vdd_l6_l12_l32", },
2010 { "lvs1", 0x8000, "vdd_lvs_1_2", },
2011 { "lvs2", 0x8100, "vdd_lvs_1_2", },
2015 static const struct spmi_regulator_data pmi8994_regulators
[] = {
2016 { "s1", 0x1400, "vdd_s1", },
2017 { "s2", 0x1700, "vdd_s2", },
2018 { "s3", 0x1a00, "vdd_s3", },
2019 { "l1", 0x4000, "vdd_l1", },
2023 static const struct spmi_regulator_data pm660_regulators
[] = {
2024 { "s1", 0x1400, "vdd_s1", },
2025 { "s2", 0x1700, "vdd_s2", },
2026 { "s3", 0x1a00, "vdd_s3", },
2027 { "s4", 0x1d00, "vdd_s3", },
2028 { "s5", 0x2000, "vdd_s5", },
2029 { "s6", 0x2300, "vdd_s6", },
2030 { "l1", 0x4000, "vdd_l1_l6_l7", },
2031 { "l2", 0x4100, "vdd_l2_l3", },
2032 { "l3", 0x4200, "vdd_l2_l3", },
2033 /* l4 is unaccessible on PM660 */
2034 { "l5", 0x4400, "vdd_l5", },
2035 { "l6", 0x4500, "vdd_l1_l6_l7", },
2036 { "l7", 0x4600, "vdd_l1_l6_l7", },
2037 { "l8", 0x4700, "vdd_l8_l9_l10_l11_l12_l13_l14", },
2038 { "l9", 0x4800, "vdd_l8_l9_l10_l11_l12_l13_l14", },
2039 { "l10", 0x4900, "vdd_l8_l9_l10_l11_l12_l13_l14", },
2040 { "l11", 0x4a00, "vdd_l8_l9_l10_l11_l12_l13_l14", },
2041 { "l12", 0x4b00, "vdd_l8_l9_l10_l11_l12_l13_l14", },
2042 { "l13", 0x4c00, "vdd_l8_l9_l10_l11_l12_l13_l14", },
2043 { "l14", 0x4d00, "vdd_l8_l9_l10_l11_l12_l13_l14", },
2044 { "l15", 0x4e00, "vdd_l15_l16_l17_l18_l19", },
2045 { "l16", 0x4f00, "vdd_l15_l16_l17_l18_l19", },
2046 { "l17", 0x5000, "vdd_l15_l16_l17_l18_l19", },
2047 { "l18", 0x5100, "vdd_l15_l16_l17_l18_l19", },
2048 { "l19", 0x5200, "vdd_l15_l16_l17_l18_l19", },
2052 static const struct spmi_regulator_data pm660l_regulators
[] = {
2053 { "s1", 0x1400, "vdd_s1", },
2054 { "s2", 0x1700, "vdd_s2", },
2055 { "s3", 0x1a00, "vdd_s3", },
2056 { "s4", 0x1d00, "vdd_s4", },
2057 { "s5", 0x2000, "vdd_s5", },
2058 { "l1", 0x4000, "vdd_l1_l9_l10", },
2059 { "l2", 0x4100, "vdd_l2", },
2060 { "l3", 0x4200, "vdd_l3_l5_l7_l8", },
2061 { "l4", 0x4300, "vdd_l4_l6", },
2062 { "l5", 0x4400, "vdd_l3_l5_l7_l8", },
2063 { "l6", 0x4500, "vdd_l4_l6", },
2064 { "l7", 0x4600, "vdd_l3_l5_l7_l8", },
2065 { "l8", 0x4700, "vdd_l3_l5_l7_l8", },
2066 { "l9", 0x4800, "vdd_l1_l9_l10", },
2067 { "l10", 0x4900, "vdd_l1_l9_l10", },
2072 static const struct spmi_regulator_data pm8004_regulators
[] = {
2073 { "s2", 0x1700, "vdd_s2", },
2074 { "s5", 0x2000, "vdd_s5", },
2078 static const struct spmi_regulator_data pm8005_regulators
[] = {
2079 { "s1", 0x1400, "vdd_s1", },
2080 { "s2", 0x1700, "vdd_s2", },
2081 { "s3", 0x1a00, "vdd_s3", },
2082 { "s4", 0x1d00, "vdd_s4", },
2086 static const struct spmi_regulator_data pms405_regulators
[] = {
2087 { "s3", 0x1a00, "vdd_s3"},
2091 static const struct of_device_id qcom_spmi_regulator_match
[] = {
2092 { .compatible
= "qcom,pm8004-regulators", .data
= &pm8004_regulators
},
2093 { .compatible
= "qcom,pm8005-regulators", .data
= &pm8005_regulators
},
2094 { .compatible
= "qcom,pm8841-regulators", .data
= &pm8841_regulators
},
2095 { .compatible
= "qcom,pm8916-regulators", .data
= &pm8916_regulators
},
2096 { .compatible
= "qcom,pm8941-regulators", .data
= &pm8941_regulators
},
2097 { .compatible
= "qcom,pm8950-regulators", .data
= &pm8950_regulators
},
2098 { .compatible
= "qcom,pm8994-regulators", .data
= &pm8994_regulators
},
2099 { .compatible
= "qcom,pmi8994-regulators", .data
= &pmi8994_regulators
},
2100 { .compatible
= "qcom,pm660-regulators", .data
= &pm660_regulators
},
2101 { .compatible
= "qcom,pm660l-regulators", .data
= &pm660l_regulators
},
2102 { .compatible
= "qcom,pms405-regulators", .data
= &pms405_regulators
},
2105 MODULE_DEVICE_TABLE(of
, qcom_spmi_regulator_match
);
2107 static int qcom_spmi_regulator_probe(struct platform_device
*pdev
)
2109 const struct spmi_regulator_data
*reg
;
2110 const struct spmi_voltage_range
*range
;
2111 const struct of_device_id
*match
;
2112 struct regulator_config config
= { };
2113 struct regulator_dev
*rdev
;
2114 struct spmi_regulator
*vreg
;
2115 struct regmap
*regmap
;
2117 struct device
*dev
= &pdev
->dev
;
2118 struct device_node
*node
= pdev
->dev
.of_node
;
2119 struct device_node
*syscon
, *reg_node
;
2120 struct property
*reg_prop
;
2122 struct list_head
*vreg_list
;
2124 vreg_list
= devm_kzalloc(dev
, sizeof(*vreg_list
), GFP_KERNEL
);
2127 INIT_LIST_HEAD(vreg_list
);
2128 platform_set_drvdata(pdev
, vreg_list
);
2130 regmap
= dev_get_regmap(dev
->parent
, NULL
);
2134 match
= of_match_device(qcom_spmi_regulator_match
, &pdev
->dev
);
2138 if (of_find_property(node
, "qcom,saw-reg", &lenp
)) {
2139 syscon
= of_parse_phandle(node
, "qcom,saw-reg", 0);
2140 saw_regmap
= syscon_node_to_regmap(syscon
);
2141 of_node_put(syscon
);
2142 if (IS_ERR(saw_regmap
))
2143 dev_err(dev
, "ERROR reading SAW regmap\n");
2146 for (reg
= match
->data
; reg
->name
; reg
++) {
2149 reg_node
= of_get_child_by_name(node
, reg
->name
);
2150 reg_prop
= of_find_property(reg_node
, "qcom,saw-slave",
2152 of_node_put(reg_node
);
2157 vreg
= devm_kzalloc(dev
, sizeof(*vreg
), GFP_KERNEL
);
2162 vreg
->base
= reg
->base
;
2163 vreg
->regmap
= regmap
;
2165 vreg
->ocp_irq
= platform_get_irq_byname(pdev
, reg
->ocp
);
2166 if (vreg
->ocp_irq
< 0)
2167 return vreg
->ocp_irq
;
2170 vreg
->desc
.owner
= THIS_MODULE
;
2171 vreg
->desc
.type
= REGULATOR_VOLTAGE
;
2172 vreg
->desc
.enable_reg
= reg
->base
+ SPMI_COMMON_REG_ENABLE
;
2173 vreg
->desc
.enable_mask
= SPMI_COMMON_ENABLE_MASK
;
2174 vreg
->desc
.enable_val
= SPMI_COMMON_ENABLE
;
2175 vreg
->desc
.name
= name
= reg
->name
;
2176 vreg
->desc
.supply_name
= reg
->supply
;
2177 vreg
->desc
.of_match
= reg
->name
;
2178 vreg
->desc
.of_parse_cb
= spmi_regulator_of_parse
;
2179 vreg
->desc
.of_map_mode
= spmi_regulator_of_map_mode
;
2181 ret
= spmi_regulator_match(vreg
, reg
->force_type
);
2186 reg_node
= of_get_child_by_name(node
, reg
->name
);
2187 reg_prop
= of_find_property(reg_node
, "qcom,saw-leader",
2189 of_node_put(reg_node
);
2191 spmi_saw_ops
= *(vreg
->desc
.ops
);
2192 spmi_saw_ops
.set_voltage_sel
=
2193 spmi_regulator_saw_set_voltage
;
2194 vreg
->desc
.ops
= &spmi_saw_ops
;
2198 if (vreg
->set_points
&& vreg
->set_points
->count
== 1) {
2199 /* since there is only one range */
2200 range
= vreg
->set_points
->range
;
2201 vreg
->desc
.uV_step
= range
->step_uV
;
2205 config
.driver_data
= vreg
;
2206 config
.regmap
= regmap
;
2207 rdev
= devm_regulator_register(dev
, &vreg
->desc
, &config
);
2209 dev_err(dev
, "failed to register %s\n", name
);
2210 return PTR_ERR(rdev
);
2213 INIT_LIST_HEAD(&vreg
->node
);
2214 list_add(&vreg
->node
, vreg_list
);
2220 static struct platform_driver qcom_spmi_regulator_driver
= {
2222 .name
= "qcom-spmi-regulator",
2223 .of_match_table
= qcom_spmi_regulator_match
,
2225 .probe
= qcom_spmi_regulator_probe
,
2227 module_platform_driver(qcom_spmi_regulator_driver
);
2229 MODULE_DESCRIPTION("Qualcomm SPMI PMIC regulator driver");
2230 MODULE_LICENSE("GPL v2");
2231 MODULE_ALIAS("platform:qcom-spmi-regulator");