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-rw-r--r--drivers/regulator/Kconfig14
-rw-r--r--drivers/regulator/Makefile2
-rw-r--r--drivers/regulator/aat2870-regulator.c232
-rw-r--r--drivers/regulator/tps65023-regulator.c97
-rw-r--r--drivers/regulator/tps65912-regulator.c800
5 files changed, 1075 insertions, 70 deletions
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index d7ed20f293d7..c7fd2c0e3f2b 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -235,6 +235,7 @@ config REGULATOR_TPS6105X
235config REGULATOR_TPS65023 235config REGULATOR_TPS65023
236 tristate "TI TPS65023 Power regulators" 236 tristate "TI TPS65023 Power regulators"
237 depends on I2C 237 depends on I2C
238 select REGMAP_I2C
238 help 239 help
239 This driver supports TPS65023 voltage regulator chips. TPS65023 provides 240 This driver supports TPS65023 voltage regulator chips. TPS65023 provides
240 three step-down converters and two general-purpose LDO voltage regulators. 241 three step-down converters and two general-purpose LDO voltage regulators.
@@ -248,6 +249,12 @@ config REGULATOR_TPS6507X
248 three step-down converters and two general-purpose LDO voltage regulators. 249 three step-down converters and two general-purpose LDO voltage regulators.
249 It supports TI's software based Class-2 SmartReflex implementation. 250 It supports TI's software based Class-2 SmartReflex implementation.
250 251
252config REGULATOR_TPS65912
253 tristate "TI TPS65912 Power regulator"
254 depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI)
255 help
256 This driver supports TPS65912 voltage regulator chip.
257
251config REGULATOR_88PM8607 258config REGULATOR_88PM8607
252 bool "Marvell 88PM8607 Power regulators" 259 bool "Marvell 88PM8607 Power regulators"
253 depends on MFD_88PM860X=y 260 depends on MFD_88PM860X=y
@@ -303,5 +310,12 @@ config REGULATOR_TPS65910
303 help 310 help
304 This driver supports TPS65910 voltage regulator chips. 311 This driver supports TPS65910 voltage regulator chips.
305 312
313config REGULATOR_AAT2870
314 tristate "AnalogicTech AAT2870 Regulators"
315 depends on MFD_AAT2870_CORE
316 help
317 If you have a AnalogicTech AAT2870 say Y to enable the
318 regulator driver.
319
306endif 320endif
307 321
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 3932d2ec38f3..040d5aa63535 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -38,10 +38,12 @@ obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o
38obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o 38obj-$(CONFIG_REGULATOR_TPS65023) += tps65023-regulator.o
39obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o 39obj-$(CONFIG_REGULATOR_TPS6507X) += tps6507x-regulator.o
40obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o 40obj-$(CONFIG_REGULATOR_TPS6524X) += tps6524x-regulator.o
41obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o
41obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o 42obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
42obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o 43obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o
43obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o 44obj-$(CONFIG_REGULATOR_AB8500) += ab8500.o
44obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o 45obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o
45obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o 46obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o
47obj-$(CONFIG_REGULATOR_AAT2870) += aat2870-regulator.o
46 48
47ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG 49ccflags-$(CONFIG_REGULATOR_DEBUG) += -DDEBUG
diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c
new file mode 100644
index 000000000000..cd4104542f0d
--- /dev/null
+++ b/drivers/regulator/aat2870-regulator.c
@@ -0,0 +1,232 @@
1/*
2 * linux/drivers/regulator/aat2870-regulator.c
3 *
4 * Copyright (c) 2011, NVIDIA Corporation.
5 * Author: Jin Park <jinyoungp@nvidia.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * version 2 as published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
19 * 02110-1301 USA
20 */
21
22#include <linux/kernel.h>
23#include <linux/init.h>
24#include <linux/err.h>
25#include <linux/slab.h>
26#include <linux/delay.h>
27#include <linux/platform_device.h>
28#include <linux/regulator/driver.h>
29#include <linux/regulator/machine.h>
30#include <linux/mfd/aat2870.h>
31
32struct aat2870_regulator {
33 struct platform_device *pdev;
34 struct regulator_desc desc;
35
36 const int *voltages; /* uV */
37
38 int min_uV;
39 int max_uV;
40
41 u8 enable_addr;
42 u8 enable_shift;
43 u8 enable_mask;
44
45 u8 voltage_addr;
46 u8 voltage_shift;
47 u8 voltage_mask;
48};
49
50static int aat2870_ldo_list_voltage(struct regulator_dev *rdev,
51 unsigned selector)
52{
53 struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
54
55 return ri->voltages[selector];
56}
57
58static int aat2870_ldo_set_voltage_sel(struct regulator_dev *rdev,
59 unsigned selector)
60{
61 struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
62 struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
63
64 return aat2870->update(aat2870, ri->voltage_addr, ri->voltage_mask,
65 (selector << ri->voltage_shift) & ri->voltage_mask);
66}
67
68static int aat2870_ldo_get_voltage_sel(struct regulator_dev *rdev)
69{
70 struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
71 struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
72 u8 val;
73 int ret;
74
75 ret = aat2870->read(aat2870, ri->voltage_addr, &val);
76 if (ret)
77 return ret;
78
79 return (val & ri->voltage_mask) >> ri->voltage_shift;
80}
81
82static int aat2870_ldo_enable(struct regulator_dev *rdev)
83{
84 struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
85 struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
86
87 return aat2870->update(aat2870, ri->enable_addr, ri->enable_mask,
88 ri->enable_mask);
89}
90
91static int aat2870_ldo_disable(struct regulator_dev *rdev)
92{
93 struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
94 struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
95
96 return aat2870->update(aat2870, ri->enable_addr, ri->enable_mask, 0);
97}
98
99static int aat2870_ldo_is_enabled(struct regulator_dev *rdev)
100{
101 struct aat2870_regulator *ri = rdev_get_drvdata(rdev);
102 struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
103 u8 val;
104 int ret;
105
106 ret = aat2870->read(aat2870, ri->enable_addr, &val);
107 if (ret)
108 return ret;
109
110 return val & ri->enable_mask ? 1 : 0;
111}
112
113static struct regulator_ops aat2870_ldo_ops = {
114 .list_voltage = aat2870_ldo_list_voltage,
115 .set_voltage_sel = aat2870_ldo_set_voltage_sel,
116 .get_voltage_sel = aat2870_ldo_get_voltage_sel,
117 .enable = aat2870_ldo_enable,
118 .disable = aat2870_ldo_disable,
119 .is_enabled = aat2870_ldo_is_enabled,
120};
121
122static const int aat2870_ldo_voltages[] = {
123 1200000, 1300000, 1500000, 1600000,
124 1800000, 2000000, 2200000, 2500000,
125 2600000, 2700000, 2800000, 2900000,
126 3000000, 3100000, 3200000, 3300000,
127};
128
129#define AAT2870_LDO(ids) \
130 { \
131 .desc = { \
132 .name = #ids, \
133 .id = AAT2870_ID_##ids, \
134 .n_voltages = ARRAY_SIZE(aat2870_ldo_voltages), \
135 .ops = &aat2870_ldo_ops, \
136 .type = REGULATOR_VOLTAGE, \
137 .owner = THIS_MODULE, \
138 }, \
139 .voltages = aat2870_ldo_voltages, \
140 .min_uV = 1200000, \
141 .max_uV = 3300000, \
142 }
143
144static struct aat2870_regulator aat2870_regulators[] = {
145 AAT2870_LDO(LDOA),
146 AAT2870_LDO(LDOB),
147 AAT2870_LDO(LDOC),
148 AAT2870_LDO(LDOD),
149};
150
151static struct aat2870_regulator *aat2870_get_regulator(int id)
152{
153 struct aat2870_regulator *ri = NULL;
154 int i;
155
156 for (i = 0; i < ARRAY_SIZE(aat2870_regulators); i++) {
157 ri = &aat2870_regulators[i];
158 if (ri->desc.id == id)
159 break;
160 }
161
162 if (!ri)
163 return NULL;
164
165 ri->enable_addr = AAT2870_LDO_EN;
166 ri->enable_shift = id - AAT2870_ID_LDOA;
167 ri->enable_mask = 0x1 << ri->enable_shift;
168
169 ri->voltage_addr = (id - AAT2870_ID_LDOA) / 2 ?
170 AAT2870_LDO_CD : AAT2870_LDO_AB;
171 ri->voltage_shift = (id - AAT2870_ID_LDOA) % 2 ? 0 : 4;
172 ri->voltage_mask = 0xF << ri->voltage_shift;
173
174 return ri;
175}
176
177static int aat2870_regulator_probe(struct platform_device *pdev)
178{
179 struct aat2870_regulator *ri;
180 struct regulator_dev *rdev;
181
182 ri = aat2870_get_regulator(pdev->id);
183 if (!ri) {
184 dev_err(&pdev->dev, "Invalid device ID, %d\n", pdev->id);
185 return -EINVAL;
186 }
187 ri->pdev = pdev;
188
189 rdev = regulator_register(&ri->desc, &pdev->dev,
190 pdev->dev.platform_data, ri);
191 if (IS_ERR(rdev)) {
192 dev_err(&pdev->dev, "Failed to register regulator %s\n",
193 ri->desc.name);
194 return PTR_ERR(rdev);
195 }
196 platform_set_drvdata(pdev, rdev);
197
198 return 0;
199}
200
201static int __devexit aat2870_regulator_remove(struct platform_device *pdev)
202{
203 struct regulator_dev *rdev = platform_get_drvdata(pdev);
204
205 regulator_unregister(rdev);
206 return 0;
207}
208
209static struct platform_driver aat2870_regulator_driver = {
210 .driver = {
211 .name = "aat2870-regulator",
212 .owner = THIS_MODULE,
213 },
214 .probe = aat2870_regulator_probe,
215 .remove = __devexit_p(aat2870_regulator_remove),
216};
217
218static int __init aat2870_regulator_init(void)
219{
220 return platform_driver_register(&aat2870_regulator_driver);
221}
222subsys_initcall(aat2870_regulator_init);
223
224static void __exit aat2870_regulator_exit(void)
225{
226 platform_driver_unregister(&aat2870_regulator_driver);
227}
228module_exit(aat2870_regulator_exit);
229
230MODULE_DESCRIPTION("AnalogicTech AAT2870 Regulator");
231MODULE_LICENSE("GPL");
232MODULE_AUTHOR("Jin Park <jinyoungp@nvidia.com>");
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index fbddc15e1811..701a5900f83f 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -25,6 +25,7 @@
25#include <linux/i2c.h> 25#include <linux/i2c.h>
26#include <linux/delay.h> 26#include <linux/delay.h>
27#include <linux/slab.h> 27#include <linux/slab.h>
28#include <linux/regmap.h>
28 29
29/* Register definitions */ 30/* Register definitions */
30#define TPS65023_REG_VERSION 0 31#define TPS65023_REG_VERSION 0
@@ -125,93 +126,35 @@ struct tps_pmic {
125 struct i2c_client *client; 126 struct i2c_client *client;
126 struct regulator_dev *rdev[TPS65023_NUM_REGULATOR]; 127 struct regulator_dev *rdev[TPS65023_NUM_REGULATOR];
127 const struct tps_info *info[TPS65023_NUM_REGULATOR]; 128 const struct tps_info *info[TPS65023_NUM_REGULATOR];
128 struct mutex io_lock; 129 struct regmap *regmap;
129}; 130};
130 131
131static inline int tps_65023_read(struct tps_pmic *tps, u8 reg)
132{
133 return i2c_smbus_read_byte_data(tps->client, reg);
134}
135
136static inline int tps_65023_write(struct tps_pmic *tps, u8 reg, u8 val)
137{
138 return i2c_smbus_write_byte_data(tps->client, reg, val);
139}
140
141static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask) 132static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
142{ 133{
143 int err, data; 134 return regmap_update_bits(tps->regmap, reg, mask, mask);
144
145 mutex_lock(&tps->io_lock);
146
147 data = tps_65023_read(tps, reg);
148 if (data < 0) {
149 dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
150 err = data;
151 goto out;
152 }
153
154 data |= mask;
155 err = tps_65023_write(tps, reg, data);
156 if (err)
157 dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
158
159out:
160 mutex_unlock(&tps->io_lock);
161 return err;
162} 135}
163 136
164static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask) 137static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask)
165{ 138{
166 int err, data; 139 return regmap_update_bits(tps->regmap, reg, mask, 0);
167
168 mutex_lock(&tps->io_lock);
169
170 data = tps_65023_read(tps, reg);
171 if (data < 0) {
172 dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg);
173 err = data;
174 goto out;
175 }
176
177 data &= ~mask;
178
179 err = tps_65023_write(tps, reg, data);
180 if (err)
181 dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
182
183out:
184 mutex_unlock(&tps->io_lock);
185 return err;
186
187} 140}
188 141
189static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg) 142static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg)
190{ 143{
191 int data; 144 unsigned int val;
145 int ret;
192 146
193 mutex_lock(&tps->io_lock); 147 ret = regmap_read(tps->regmap, reg, &val);
194 148
195 data = tps_65023_read(tps, reg); 149 if (ret != 0)
196 if (data < 0) 150 return ret;
197 dev_err(&tps->client->dev, "Read from reg 0x%x failed\n", reg); 151 else
198 152 return val;
199 mutex_unlock(&tps->io_lock);
200 return data;
201} 153}
202 154
203static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val) 155static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val)
204{ 156{
205 int err; 157 return regmap_write(tps->regmap, reg, val);
206
207 mutex_lock(&tps->io_lock);
208
209 err = tps_65023_write(tps, reg, val);
210 if (err < 0)
211 dev_err(&tps->client->dev, "Write for reg 0x%x failed\n", reg);
212
213 mutex_unlock(&tps->io_lock);
214 return err;
215} 158}
216 159
217static int tps65023_dcdc_is_enabled(struct regulator_dev *dev) 160static int tps65023_dcdc_is_enabled(struct regulator_dev *dev)
@@ -463,6 +406,11 @@ static struct regulator_ops tps65023_ldo_ops = {
463 .list_voltage = tps65023_ldo_list_voltage, 406 .list_voltage = tps65023_ldo_list_voltage,
464}; 407};
465 408
409static struct regmap_config tps65023_regmap_config = {
410 .reg_bits = 8,
411 .val_bits = 8,
412};
413
466static int __devinit tps_65023_probe(struct i2c_client *client, 414static int __devinit tps_65023_probe(struct i2c_client *client,
467 const struct i2c_device_id *id) 415 const struct i2c_device_id *id)
468{ 416{
@@ -488,7 +436,13 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
488 if (!tps) 436 if (!tps)
489 return -ENOMEM; 437 return -ENOMEM;
490 438
491 mutex_init(&tps->io_lock); 439 tps->regmap = regmap_init_i2c(client, &tps65023_regmap_config);
440 if (IS_ERR(tps->regmap)) {
441 error = PTR_ERR(tps->regmap);
442 dev_err(&client->dev, "Failed to allocate register map: %d\n",
443 error);
444 goto fail_alloc;
445 }
492 446
493 /* common for all regulators */ 447 /* common for all regulators */
494 tps->client = client; 448 tps->client = client;
@@ -527,6 +481,8 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
527 while (--i >= 0) 481 while (--i >= 0)
528 regulator_unregister(tps->rdev[i]); 482 regulator_unregister(tps->rdev[i]);
529 483
484 regmap_exit(tps->regmap);
485 fail_alloc:
530 kfree(tps); 486 kfree(tps);
531 return error; 487 return error;
532} 488}
@@ -545,6 +501,7 @@ static int __devexit tps_65023_remove(struct i2c_client *client)
545 for (i = 0; i < TPS65023_NUM_REGULATOR; i++) 501 for (i = 0; i < TPS65023_NUM_REGULATOR; i++)
546 regulator_unregister(tps->rdev[i]); 502 regulator_unregister(tps->rdev[i]);
547 503
504 regmap_exit(tps->regmap);
548 kfree(tps); 505 kfree(tps);
549 506
550 return 0; 507 return 0;
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
new file mode 100644
index 000000000000..3a9313e00fac
--- /dev/null
+++ b/drivers/regulator/tps65912-regulator.c
@@ -0,0 +1,800 @@
1/*
2 * tps65912.c -- TI tps65912
3 *
4 * Copyright 2011 Texas Instruments Inc.
5 *
6 * Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 *
13 * This driver is based on wm8350 implementation.
14 */
15
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/err.h>
20#include <linux/platform_device.h>
21#include <linux/regulator/driver.h>
22#include <linux/regulator/machine.h>
23#include <linux/delay.h>
24#include <linux/slab.h>
25#include <linux/gpio.h>
26#include <linux/mfd/tps65912.h>
27
28/* DCDC's */
29#define TPS65912_REG_DCDC1 0
30#define TPS65912_REG_DCDC2 1
31#define TPS65912_REG_DCDC3 2
32#define TPS65912_REG_DCDC4 3
33
34/* LDOs */
35#define TPS65912_REG_LDO1 4
36#define TPS65912_REG_LDO2 5
37#define TPS65912_REG_LDO3 6
38#define TPS65912_REG_LDO4 7
39#define TPS65912_REG_LDO5 8
40#define TPS65912_REG_LDO6 9
41#define TPS65912_REG_LDO7 10
42#define TPS65912_REG_LDO8 11
43#define TPS65912_REG_LDO9 12
44#define TPS65912_REG_LDO10 13
45
46#define TPS65912_MAX_REG_ID TPS65912_REG_LDO_10
47
48/* Number of step-down converters available */
49#define TPS65912_NUM_DCDC 4
50
51/* Number of LDO voltage regulators available */
52#define TPS65912_NUM_LDO 10
53
54/* Number of total regulators available */
55#define TPS65912_NUM_REGULATOR (TPS65912_NUM_DCDC + TPS65912_NUM_LDO)
56
57#define TPS65912_REG_ENABLED 0x80
58#define OP_SELREG_MASK 0x40
59#define OP_SELREG_SHIFT 6
60
61struct tps_info {
62 const char *name;
63};
64
65static struct tps_info tps65912_regs[] = {
66 {
67 .name = "DCDC1",
68 },
69 {
70 .name = "DCDC2",
71 },
72 {
73 .name = "DCDC3",
74 },
75 {
76 .name = "DCDC4",
77 },
78 {
79 .name = "LDO1",
80 },
81 {
82 .name = "LDO2",
83 },
84 {
85 .name = "LDO3",
86 },
87 {
88 .name = "LDO4",
89 },
90 {
91 .name = "LDO5",
92 },
93 {
94 .name = "LDO6",
95 },
96 {
97 .name = "LDO7",
98 },
99 {
100 .name = "LDO8",
101 },
102 {
103 .name = "LDO9",
104 },
105 {
106 .name = "LDO10",
107 },
108};
109
110struct tps65912_reg {
111 struct regulator_desc desc[TPS65912_NUM_REGULATOR];
112 struct tps65912 *mfd;
113 struct regulator_dev *rdev[TPS65912_NUM_REGULATOR];
114 struct tps_info *info[TPS65912_NUM_REGULATOR];
115 /* for read/write access */
116 struct mutex io_lock;
117 int mode;
118 int (*get_ctrl_reg)(int);
119 int dcdc1_range;
120 int dcdc2_range;
121 int dcdc3_range;
122 int dcdc4_range;
123 int pwm_mode_reg;
124 int eco_reg;
125};
126
127static int tps65912_get_range(struct tps65912_reg *pmic, int id)
128{
129 struct tps65912 *mfd = pmic->mfd;
130
131 if (id > TPS65912_REG_DCDC4)
132 return 0;
133
134 switch (id) {
135 case TPS65912_REG_DCDC1:
136 pmic->dcdc1_range = tps65912_reg_read(mfd,
137 TPS65912_DCDC1_LIMIT);
138 if (pmic->dcdc1_range < 0)
139 return pmic->dcdc1_range;
140 pmic->dcdc1_range = (pmic->dcdc1_range &
141 DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
142 return pmic->dcdc1_range;
143 case TPS65912_REG_DCDC2:
144 pmic->dcdc2_range = tps65912_reg_read(mfd,
145 TPS65912_DCDC2_LIMIT);
146 if (pmic->dcdc2_range < 0)
147 return pmic->dcdc2_range;
148 pmic->dcdc2_range = (pmic->dcdc2_range &
149 DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
150 return pmic->dcdc2_range;
151 case TPS65912_REG_DCDC3:
152 pmic->dcdc3_range = tps65912_reg_read(mfd,
153 TPS65912_DCDC3_LIMIT);
154 if (pmic->dcdc3_range < 0)
155 return pmic->dcdc3_range;
156 pmic->dcdc3_range = (pmic->dcdc3_range &
157 DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
158 return pmic->dcdc3_range;
159 case TPS65912_REG_DCDC4:
160 pmic->dcdc4_range = tps65912_reg_read(mfd,
161 TPS65912_DCDC4_LIMIT);
162 if (pmic->dcdc4_range < 0)
163 return pmic->dcdc4_range;
164 pmic->dcdc4_range = (pmic->dcdc4_range &
165 DCDC_LIMIT_RANGE_MASK) >> DCDC_LIMIT_RANGE_SHIFT;
166 return pmic->dcdc4_range;
167 default:
168 return 0;
169 }
170}
171
172static unsigned long tps65912_vsel_to_uv_range0(u8 vsel)
173{
174 unsigned long uv;
175
176 uv = ((vsel * 12500) + 500000);
177 return uv;
178}
179
180static unsigned long tps65912_vsel_to_uv_range1(u8 vsel)
181{
182 unsigned long uv;
183
184 uv = ((vsel * 12500) + 700000);
185 return uv;
186}
187
188static unsigned long tps65912_vsel_to_uv_range2(u8 vsel)
189{
190 unsigned long uv;
191
192 uv = ((vsel * 25000) + 500000);
193 return uv;
194}
195
196static unsigned long tps65912_vsel_to_uv_range3(u8 vsel)
197{
198 unsigned long uv;
199
200 if (vsel == 0x3f)
201 uv = 3800000;
202 else
203 uv = ((vsel * 50000) + 500000);
204
205 return uv;
206}
207
208static unsigned long tps65912_vsel_to_uv_ldo(u8 vsel)
209{
210 unsigned long uv = 0;
211
212 if (vsel <= 32)
213 uv = ((vsel * 25000) + 800000);
214 else if (vsel > 32 && vsel <= 60)
215 uv = (((vsel - 32) * 50000) + 1600000);
216 else if (vsel > 60)
217 uv = (((vsel - 60) * 100000) + 3000000);
218
219 return uv;
220}
221
222static int tps65912_get_ctrl_register(int id)
223{
224 switch (id) {
225 case TPS65912_REG_DCDC1:
226 return TPS65912_DCDC1_AVS;
227 case TPS65912_REG_DCDC2:
228 return TPS65912_DCDC2_AVS;
229 case TPS65912_REG_DCDC3:
230 return TPS65912_DCDC3_AVS;
231 case TPS65912_REG_DCDC4:
232 return TPS65912_DCDC4_AVS;
233 case TPS65912_REG_LDO1:
234 return TPS65912_LDO1_AVS;
235 case TPS65912_REG_LDO2:
236 return TPS65912_LDO2_AVS;
237 case TPS65912_REG_LDO3:
238 return TPS65912_LDO3_AVS;
239 case TPS65912_REG_LDO4:
240 return TPS65912_LDO4_AVS;
241 case TPS65912_REG_LDO5:
242 return TPS65912_LDO5;
243 case TPS65912_REG_LDO6:
244 return TPS65912_LDO6;
245 case TPS65912_REG_LDO7:
246 return TPS65912_LDO7;
247 case TPS65912_REG_LDO8:
248 return TPS65912_LDO8;
249 case TPS65912_REG_LDO9:
250 return TPS65912_LDO9;
251 case TPS65912_REG_LDO10:
252 return TPS65912_LDO10;
253 default:
254 return -EINVAL;
255 }
256}
257
258static int tps65912_get_dcdc_sel_register(struct tps65912_reg *pmic, int id)
259{
260 struct tps65912 *mfd = pmic->mfd;
261 int opvsel = 0, sr = 0;
262 u8 reg = 0;
263
264 if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_DCDC4)
265 return -EINVAL;
266
267 switch (id) {
268 case TPS65912_REG_DCDC1:
269 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC1_OP);
270 sr = ((opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT);
271 if (sr)
272 reg = TPS65912_DCDC1_AVS;
273 else
274 reg = TPS65912_DCDC1_OP;
275 break;
276 case TPS65912_REG_DCDC2:
277 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC2_OP);
278 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
279 if (sr)
280 reg = TPS65912_DCDC2_AVS;
281 else
282 reg = TPS65912_DCDC2_OP;
283 break;
284 case TPS65912_REG_DCDC3:
285 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC3_OP);
286 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
287 if (sr)
288 reg = TPS65912_DCDC3_AVS;
289 else
290 reg = TPS65912_DCDC3_OP;
291 break;
292 case TPS65912_REG_DCDC4:
293 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC4_OP);
294 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
295 if (sr)
296 reg = TPS65912_DCDC4_AVS;
297 else
298 reg = TPS65912_DCDC4_OP;
299 break;
300 }
301 return reg;
302}
303
304static int tps65912_get_ldo_sel_register(struct tps65912_reg *pmic, int id)
305{
306 struct tps65912 *mfd = pmic->mfd;
307 int opvsel = 0, sr = 0;
308 u8 reg = 0;
309
310 if (id < TPS65912_REG_LDO1 || id > TPS65912_REG_LDO10)
311 return -EINVAL;
312
313 switch (id) {
314 case TPS65912_REG_LDO1:
315 opvsel = tps65912_reg_read(mfd, TPS65912_LDO1_OP);
316 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
317 if (sr)
318 reg = TPS65912_LDO1_AVS;
319 else
320 reg = TPS65912_LDO1_OP;
321 break;
322 case TPS65912_REG_LDO2:
323 opvsel = tps65912_reg_read(mfd, TPS65912_LDO2_OP);
324 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
325 if (sr)
326 reg = TPS65912_LDO2_AVS;
327 else
328 reg = TPS65912_LDO2_OP;
329 break;
330 case TPS65912_REG_LDO3:
331 opvsel = tps65912_reg_read(mfd, TPS65912_LDO3_OP);
332 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
333 if (sr)
334 reg = TPS65912_LDO3_AVS;
335 else
336 reg = TPS65912_LDO3_OP;
337 break;
338 case TPS65912_REG_LDO4:
339 opvsel = tps65912_reg_read(mfd, TPS65912_LDO4_OP);
340 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
341 if (sr)
342 reg = TPS65912_LDO4_AVS;
343 else
344 reg = TPS65912_LDO4_OP;
345 break;
346 case TPS65912_REG_LDO5:
347 reg = TPS65912_LDO5;
348 break;
349 case TPS65912_REG_LDO6:
350 reg = TPS65912_LDO6;
351 break;
352 case TPS65912_REG_LDO7:
353 reg = TPS65912_LDO7;
354 break;
355 case TPS65912_REG_LDO8:
356 reg = TPS65912_LDO8;
357 break;
358 case TPS65912_REG_LDO9:
359 reg = TPS65912_LDO9;
360 break;
361 case TPS65912_REG_LDO10:
362 reg = TPS65912_LDO10;
363 break;
364 }
365
366 return reg;
367}
368
369static int tps65912_get_mode_regiters(struct tps65912_reg *pmic, int id)
370{
371 switch (id) {
372 case TPS65912_REG_DCDC1:
373 pmic->pwm_mode_reg = TPS65912_DCDC1_CTRL;
374 pmic->eco_reg = TPS65912_DCDC1_AVS;
375 break;
376 case TPS65912_REG_DCDC2:
377 pmic->pwm_mode_reg = TPS65912_DCDC2_CTRL;
378 pmic->eco_reg = TPS65912_DCDC2_AVS;
379 break;
380 case TPS65912_REG_DCDC3:
381 pmic->pwm_mode_reg = TPS65912_DCDC3_CTRL;
382 pmic->eco_reg = TPS65912_DCDC3_AVS;
383 break;
384 case TPS65912_REG_DCDC4:
385 pmic->pwm_mode_reg = TPS65912_DCDC4_CTRL;
386 pmic->eco_reg = TPS65912_DCDC4_AVS;
387 break;
388 default:
389 return -EINVAL;
390 }
391
392 return 0;
393}
394
395static int tps65912_reg_is_enabled(struct regulator_dev *dev)
396{
397 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
398 struct tps65912 *mfd = pmic->mfd;
399 int reg, value, id = rdev_get_id(dev);
400
401 if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
402 return -EINVAL;
403
404 reg = pmic->get_ctrl_reg(id);
405 if (reg < 0)
406 return reg;
407
408 value = tps65912_reg_read(mfd, reg);
409 if (value < 0)
410 return value;
411
412 return value & TPS65912_REG_ENABLED;
413}
414
415static int tps65912_reg_enable(struct regulator_dev *dev)
416{
417 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
418 struct tps65912 *mfd = pmic->mfd;
419 int id = rdev_get_id(dev);
420 int reg;
421
422 if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10)
423 return -EINVAL;
424
425 reg = pmic->get_ctrl_reg(id);
426 if (reg < 0)
427 return reg;
428
429 return tps65912_set_bits(mfd, reg, TPS65912_REG_ENABLED);
430}
431
432static int tps65912_reg_disable(struct regulator_dev *dev)
433{
434 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
435 struct tps65912 *mfd = pmic->mfd;
436 int id = rdev_get_id(dev), reg;
437
438 reg = pmic->get_ctrl_reg(id);
439 if (reg < 0)
440 return reg;
441
442 return tps65912_clear_bits(mfd, reg, TPS65912_REG_ENABLED);
443}
444
445static int tps65912_set_mode(struct regulator_dev *dev, unsigned int mode)
446{
447 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
448 struct tps65912 *mfd = pmic->mfd;
449 int pwm_mode, eco, id = rdev_get_id(dev);
450
451 tps65912_get_mode_regiters(pmic, id);
452
453 pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
454 eco = tps65912_reg_read(mfd, pmic->eco_reg);
455
456 pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
457 eco &= DCDC_AVS_ECO_MASK;
458
459 switch (mode) {
460 case REGULATOR_MODE_FAST:
461 /* Verify if mode alredy set */
462 if (pwm_mode && !eco)
463 break;
464 tps65912_set_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
465 tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
466 break;
467 case REGULATOR_MODE_NORMAL:
468 case REGULATOR_MODE_IDLE:
469 if (!pwm_mode && !eco)
470 break;
471 tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
472 tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
473 break;
474 case REGULATOR_MODE_STANDBY:
475 if (!pwm_mode && eco)
476 break;
477 tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK);
478 tps65912_set_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK);
479 break;
480 default:
481 return -EINVAL;
482 }
483
484 return 0;
485}
486
487static unsigned int tps65912_get_mode(struct regulator_dev *dev)
488{
489 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
490 struct tps65912 *mfd = pmic->mfd;
491 int pwm_mode, eco, mode = 0, id = rdev_get_id(dev);
492
493 tps65912_get_mode_regiters(pmic, id);
494
495 pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg);
496 eco = tps65912_reg_read(mfd, pmic->eco_reg);
497
498 pwm_mode &= DCDCCTRL_DCDC_MODE_MASK;
499 eco &= DCDC_AVS_ECO_MASK;
500
501 if (pwm_mode && !eco)
502 mode = REGULATOR_MODE_FAST;
503 else if (!pwm_mode && !eco)
504 mode = REGULATOR_MODE_NORMAL;
505 else if (!pwm_mode && eco)
506 mode = REGULATOR_MODE_STANDBY;
507
508 return mode;
509}
510
511static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
512{
513 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
514 struct tps65912 *mfd = pmic->mfd;
515 int id = rdev_get_id(dev), voltage = 0, range;
516 int opvsel = 0, avsel = 0, sr, vsel;
517
518 switch (id) {
519 case TPS65912_REG_DCDC1:
520 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC1_OP);
521 avsel = tps65912_reg_read(mfd, TPS65912_DCDC1_AVS);
522 range = pmic->dcdc1_range;
523 break;
524 case TPS65912_REG_DCDC2:
525 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC2_OP);
526 avsel = tps65912_reg_read(mfd, TPS65912_DCDC2_AVS);
527 range = pmic->dcdc2_range;
528 break;
529 case TPS65912_REG_DCDC3:
530 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC3_OP);
531 avsel = tps65912_reg_read(mfd, TPS65912_DCDC3_AVS);
532 range = pmic->dcdc3_range;
533 break;
534 case TPS65912_REG_DCDC4:
535 opvsel = tps65912_reg_read(mfd, TPS65912_DCDC4_OP);
536 avsel = tps65912_reg_read(mfd, TPS65912_DCDC4_AVS);
537 range = pmic->dcdc4_range;
538 break;
539 default:
540 return -EINVAL;
541 }
542
543 sr = (opvsel & OP_SELREG_MASK) >> OP_SELREG_SHIFT;
544 if (sr)
545 vsel = avsel;
546 else
547 vsel = opvsel;
548 vsel &= 0x3F;
549
550 switch (range) {
551 case 0:
552 /* 0.5 - 1.2875V in 12.5mV steps */
553 voltage = tps65912_vsel_to_uv_range0(vsel);
554 break;
555 case 1:
556 /* 0.7 - 1.4875V in 12.5mV steps */
557 voltage = tps65912_vsel_to_uv_range1(vsel);
558 break;
559 case 2:
560 /* 0.5 - 2.075V in 25mV steps */
561 voltage = tps65912_vsel_to_uv_range2(vsel);
562 break;
563 case 3:
564 /* 0.5 - 3.8V in 50mV steps */
565 voltage = tps65912_vsel_to_uv_range3(vsel);
566 break;
567 }
568 return voltage;
569}
570
571static int tps65912_set_voltage_dcdc(struct regulator_dev *dev,
572 unsigned selector)
573{
574 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
575 struct tps65912 *mfd = pmic->mfd;
576 int id = rdev_get_id(dev);
577 int value;
578 u8 reg;
579
580 reg = tps65912_get_dcdc_sel_register(pmic, id);
581 value = tps65912_reg_read(mfd, reg);
582 value &= 0xC0;
583 return tps65912_reg_write(mfd, reg, selector | value);
584}
585
586static int tps65912_get_voltage_ldo(struct regulator_dev *dev)
587{
588 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
589 struct tps65912 *mfd = pmic->mfd;
590 int id = rdev_get_id(dev);
591 int vsel = 0;
592 u8 reg;
593
594 reg = tps65912_get_ldo_sel_register(pmic, id);
595 vsel = tps65912_reg_read(mfd, reg);
596 vsel &= 0x3F;
597
598 return tps65912_vsel_to_uv_ldo(vsel);
599}
600
601static int tps65912_set_voltage_ldo(struct regulator_dev *dev,
602 unsigned selector)
603{
604 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
605 struct tps65912 *mfd = pmic->mfd;
606 int id = rdev_get_id(dev), reg, value;
607
608 reg = tps65912_get_ldo_sel_register(pmic, id);
609 value = tps65912_reg_read(mfd, reg);
610 value &= 0xC0;
611 return tps65912_reg_write(mfd, reg, selector | value);
612}
613
614static int tps65912_list_voltage_dcdc(struct regulator_dev *dev,
615 unsigned selector)
616{
617 struct tps65912_reg *pmic = rdev_get_drvdata(dev);
618 int range, voltage = 0, id = rdev_get_id(dev);
619
620 switch (id) {
621 case TPS65912_REG_DCDC1:
622 range = pmic->dcdc1_range;
623 break;
624 case TPS65912_REG_DCDC2:
625 range = pmic->dcdc2_range;
626 break;
627 case TPS65912_REG_DCDC3:
628 range = pmic->dcdc3_range;
629 break;
630 case TPS65912_REG_DCDC4:
631 range = pmic->dcdc4_range;
632 break;
633 default:
634 return -EINVAL;
635 }
636
637 switch (range) {
638 case 0:
639 /* 0.5 - 1.2875V in 12.5mV steps */
640 voltage = tps65912_vsel_to_uv_range0(selector);
641 break;
642 case 1:
643 /* 0.7 - 1.4875V in 12.5mV steps */
644 voltage = tps65912_vsel_to_uv_range1(selector);
645 break;
646 case 2:
647 /* 0.5 - 2.075V in 25mV steps */
648 voltage = tps65912_vsel_to_uv_range2(selector);
649 break;
650 case 3:
651 /* 0.5 - 3.8V in 50mV steps */
652 voltage = tps65912_vsel_to_uv_range3(selector);
653 break;
654 }
655 return voltage;
656}
657
658static int tps65912_list_voltage_ldo(struct regulator_dev *dev,
659 unsigned selector)
660{
661 int ldo = rdev_get_id(dev);
662
663 if (ldo < TPS65912_REG_LDO1 || ldo > TPS65912_REG_LDO10)
664 return -EINVAL;
665
666 return tps65912_vsel_to_uv_ldo(selector);
667}
668
669/* Operations permitted on DCDCx */
670static struct regulator_ops tps65912_ops_dcdc = {
671 .is_enabled = tps65912_reg_is_enabled,
672 .enable = tps65912_reg_enable,
673 .disable = tps65912_reg_disable,
674 .set_mode = tps65912_set_mode,
675 .get_mode = tps65912_get_mode,
676 .get_voltage = tps65912_get_voltage_dcdc,
677 .set_voltage_sel = tps65912_set_voltage_dcdc,
678 .list_voltage = tps65912_list_voltage_dcdc,
679};
680
681/* Operations permitted on LDOx */
682static struct regulator_ops tps65912_ops_ldo = {
683 .is_enabled = tps65912_reg_is_enabled,
684 .enable = tps65912_reg_enable,
685 .disable = tps65912_reg_disable,
686 .get_voltage = tps65912_get_voltage_ldo,
687 .set_voltage_sel = tps65912_set_voltage_ldo,
688 .list_voltage = tps65912_list_voltage_ldo,
689};
690
691static __devinit int tps65912_probe(struct platform_device *pdev)
692{
693 struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent);
694 struct tps_info *info;
695 struct regulator_init_data *reg_data;
696 struct regulator_dev *rdev;
697 struct tps65912_reg *pmic;
698 struct tps65912_board *pmic_plat_data;
699 int i, err;
700
701 pmic_plat_data = dev_get_platdata(tps65912->dev);
702 if (!pmic_plat_data)
703 return -EINVAL;
704
705 reg_data = pmic_plat_data->tps65912_pmic_init_data;
706
707 pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
708 if (!pmic)
709 return -ENOMEM;
710
711 mutex_init(&pmic->io_lock);
712 pmic->mfd = tps65912;
713 platform_set_drvdata(pdev, pmic);
714
715 pmic->get_ctrl_reg = &tps65912_get_ctrl_register;
716 info = tps65912_regs;
717
718 for (i = 0; i < TPS65912_NUM_REGULATOR; i++, info++, reg_data++) {
719 int range = 0;
720 /* Register the regulators */
721 pmic->info[i] = info;
722
723 pmic->desc[i].name = info->name;
724 pmic->desc[i].id = i;
725 pmic->desc[i].n_voltages = 64;
726 pmic->desc[i].ops = (i > TPS65912_REG_DCDC4 ?
727 &tps65912_ops_ldo : &tps65912_ops_dcdc);
728 pmic->desc[i].type = REGULATOR_VOLTAGE;
729 pmic->desc[i].owner = THIS_MODULE;
730 range = tps65912_get_range(pmic, i);
731 rdev = regulator_register(&pmic->desc[i],
732 tps65912->dev, reg_data, pmic);
733 if (IS_ERR(rdev)) {
734 dev_err(tps65912->dev,
735 "failed to register %s regulator\n",
736 pdev->name);
737 err = PTR_ERR(rdev);
738 goto err;
739 }
740
741 /* Save regulator for cleanup */
742 pmic->rdev[i] = rdev;
743 }
744 return 0;
745
746err:
747 while (--i >= 0)
748 regulator_unregister(pmic->rdev[i]);
749
750 kfree(pmic);
751 return err;
752}
753
754static int __devexit tps65912_remove(struct platform_device *pdev)
755{
756 struct tps65912_reg *tps65912_reg = platform_get_drvdata(pdev);
757 int i;
758
759 for (i = 0; i < TPS65912_NUM_REGULATOR; i++)
760 regulator_unregister(tps65912_reg->rdev[i]);
761
762 kfree(tps65912_reg);
763 return 0;
764}
765
766static struct platform_driver tps65912_driver = {
767 .driver = {
768 .name = "tps65912-pmic",
769 .owner = THIS_MODULE,
770 },
771 .probe = tps65912_probe,
772 .remove = __devexit_p(tps65912_remove),
773};
774
775/**
776 * tps65912_init
777 *
778 * Module init function
779 */
780static int __init tps65912_init(void)
781{
782 return platform_driver_register(&tps65912_driver);
783}
784subsys_initcall(tps65912_init);
785
786/**
787 * tps65912_cleanup
788 *
789 * Module exit function
790 */
791static void __exit tps65912_cleanup(void)
792{
793 platform_driver_unregister(&tps65912_driver);
794}
795module_exit(tps65912_cleanup);
796
797MODULE_AUTHOR("Margarita Olaya Cabrera <magi@slimlogic.co.uk>");
798MODULE_DESCRIPTION("TPS65912 voltage regulator driver");
799MODULE_LICENSE("GPL v2");
800MODULE_ALIAS("platform:tps65912-pmic");
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-03 20:49:37 -0500