4 * Copyright (c) 2012 Samsung Electronics Co., Ltd
5 * http://www.samsung.com
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
14 #include <linux/bug.h>
15 #include <linux/err.h>
16 #include <linux/gpio.h>
17 #include <linux/slab.h>
18 #include <linux/module.h>
19 #include <linux/platform_device.h>
20 #include <linux/regulator/driver.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/mfd/samsung/core.h>
23 #include <linux/mfd/samsung/s2mps11.h>
26 struct regulator_dev
*rdev
[S2MPS11_REGULATOR_MAX
];
41 static int get_ramp_delay(int ramp_delay
)
43 unsigned char cnt
= 0;
48 ramp_delay
= ramp_delay
>> 1;
56 static struct regulator_ops s2mps11_ldo_ops
= {
57 .list_voltage
= regulator_list_voltage_linear
,
58 .map_voltage
= regulator_map_voltage_linear
,
59 .is_enabled
= regulator_is_enabled_regmap
,
60 .enable
= regulator_enable_regmap
,
61 .disable
= regulator_disable_regmap
,
62 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
63 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
64 .set_voltage_time_sel
= regulator_set_voltage_time_sel
,
67 static struct regulator_ops s2mps11_buck_ops
= {
68 .list_voltage
= regulator_list_voltage_linear
,
69 .map_voltage
= regulator_map_voltage_linear
,
70 .is_enabled
= regulator_is_enabled_regmap
,
71 .enable
= regulator_enable_regmap
,
72 .disable
= regulator_disable_regmap
,
73 .get_voltage_sel
= regulator_get_voltage_sel_regmap
,
74 .set_voltage_sel
= regulator_set_voltage_sel_regmap
,
75 .set_voltage_time_sel
= regulator_set_voltage_time_sel
,
78 #define regulator_desc_ldo1(num) { \
80 .id = S2MPS11_LDO##num, \
81 .ops = &s2mps11_ldo_ops, \
82 .type = REGULATOR_VOLTAGE, \
83 .owner = THIS_MODULE, \
84 .min_uV = S2MPS11_LDO_MIN, \
85 .uV_step = S2MPS11_LDO_STEP1, \
86 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
87 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
88 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
89 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
90 .enable_mask = S2MPS11_ENABLE_MASK \
92 #define regulator_desc_ldo2(num) { \
94 .id = S2MPS11_LDO##num, \
95 .ops = &s2mps11_ldo_ops, \
96 .type = REGULATOR_VOLTAGE, \
97 .owner = THIS_MODULE, \
98 .min_uV = S2MPS11_LDO_MIN, \
99 .uV_step = S2MPS11_LDO_STEP2, \
100 .n_voltages = S2MPS11_LDO_N_VOLTAGES, \
101 .vsel_reg = S2MPS11_REG_L1CTRL + num - 1, \
102 .vsel_mask = S2MPS11_LDO_VSEL_MASK, \
103 .enable_reg = S2MPS11_REG_L1CTRL + num - 1, \
104 .enable_mask = S2MPS11_ENABLE_MASK \
107 #define regulator_desc_buck1_4(num) { \
108 .name = "BUCK"#num, \
109 .id = S2MPS11_BUCK##num, \
110 .ops = &s2mps11_buck_ops, \
111 .type = REGULATOR_VOLTAGE, \
112 .owner = THIS_MODULE, \
113 .min_uV = S2MPS11_BUCK_MIN1, \
114 .uV_step = S2MPS11_BUCK_STEP1, \
115 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
116 .ramp_delay = S2MPS11_RAMP_DELAY, \
117 .vsel_reg = S2MPS11_REG_B1CTRL2 + (num - 1) * 2, \
118 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
119 .enable_reg = S2MPS11_REG_B1CTRL1 + (num - 1) * 2, \
120 .enable_mask = S2MPS11_ENABLE_MASK \
123 #define regulator_desc_buck5 { \
125 .id = S2MPS11_BUCK5, \
126 .ops = &s2mps11_buck_ops, \
127 .type = REGULATOR_VOLTAGE, \
128 .owner = THIS_MODULE, \
129 .min_uV = S2MPS11_BUCK_MIN1, \
130 .uV_step = S2MPS11_BUCK_STEP1, \
131 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
132 .ramp_delay = S2MPS11_RAMP_DELAY, \
133 .vsel_reg = S2MPS11_REG_B5CTRL2, \
134 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
135 .enable_reg = S2MPS11_REG_B5CTRL1, \
136 .enable_mask = S2MPS11_ENABLE_MASK \
139 #define regulator_desc_buck6_8(num) { \
140 .name = "BUCK"#num, \
141 .id = S2MPS11_BUCK##num, \
142 .ops = &s2mps11_buck_ops, \
143 .type = REGULATOR_VOLTAGE, \
144 .owner = THIS_MODULE, \
145 .min_uV = S2MPS11_BUCK_MIN1, \
146 .uV_step = S2MPS11_BUCK_STEP1, \
147 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
148 .ramp_delay = S2MPS11_RAMP_DELAY, \
149 .vsel_reg = S2MPS11_REG_B6CTRL2 + (num - 6) * 2, \
150 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
151 .enable_reg = S2MPS11_REG_B6CTRL1 + (num - 6) * 2, \
152 .enable_mask = S2MPS11_ENABLE_MASK \
155 #define regulator_desc_buck9 { \
157 .id = S2MPS11_BUCK9, \
158 .ops = &s2mps11_buck_ops, \
159 .type = REGULATOR_VOLTAGE, \
160 .owner = THIS_MODULE, \
161 .min_uV = S2MPS11_BUCK_MIN3, \
162 .uV_step = S2MPS11_BUCK_STEP3, \
163 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
164 .ramp_delay = S2MPS11_RAMP_DELAY, \
165 .vsel_reg = S2MPS11_REG_B9CTRL2, \
166 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
167 .enable_reg = S2MPS11_REG_B9CTRL1, \
168 .enable_mask = S2MPS11_ENABLE_MASK \
171 #define regulator_desc_buck10 { \
173 .id = S2MPS11_BUCK10, \
174 .ops = &s2mps11_buck_ops, \
175 .type = REGULATOR_VOLTAGE, \
176 .owner = THIS_MODULE, \
177 .min_uV = S2MPS11_BUCK_MIN2, \
178 .uV_step = S2MPS11_BUCK_STEP2, \
179 .n_voltages = S2MPS11_BUCK_N_VOLTAGES, \
180 .ramp_delay = S2MPS11_RAMP_DELAY, \
181 .vsel_reg = S2MPS11_REG_B10CTRL2, \
182 .vsel_mask = S2MPS11_BUCK_VSEL_MASK, \
183 .enable_reg = S2MPS11_REG_B10CTRL1, \
184 .enable_mask = S2MPS11_ENABLE_MASK \
187 static struct regulator_desc regulators
[] = {
188 regulator_desc_ldo2(1),
189 regulator_desc_ldo1(2),
190 regulator_desc_ldo1(3),
191 regulator_desc_ldo1(4),
192 regulator_desc_ldo1(5),
193 regulator_desc_ldo2(6),
194 regulator_desc_ldo1(7),
195 regulator_desc_ldo1(8),
196 regulator_desc_ldo1(9),
197 regulator_desc_ldo1(10),
198 regulator_desc_ldo2(11),
199 regulator_desc_ldo1(12),
200 regulator_desc_ldo1(13),
201 regulator_desc_ldo1(14),
202 regulator_desc_ldo1(15),
203 regulator_desc_ldo1(16),
204 regulator_desc_ldo1(17),
205 regulator_desc_ldo1(18),
206 regulator_desc_ldo1(19),
207 regulator_desc_ldo1(20),
208 regulator_desc_ldo1(21),
209 regulator_desc_ldo2(22),
210 regulator_desc_ldo2(23),
211 regulator_desc_ldo1(24),
212 regulator_desc_ldo1(25),
213 regulator_desc_ldo1(26),
214 regulator_desc_ldo2(27),
215 regulator_desc_ldo1(28),
216 regulator_desc_ldo1(29),
217 regulator_desc_ldo1(30),
218 regulator_desc_ldo1(31),
219 regulator_desc_ldo1(32),
220 regulator_desc_ldo1(33),
221 regulator_desc_ldo1(34),
222 regulator_desc_ldo1(35),
223 regulator_desc_ldo1(36),
224 regulator_desc_ldo1(37),
225 regulator_desc_ldo1(38),
226 regulator_desc_buck1_4(1),
227 regulator_desc_buck1_4(2),
228 regulator_desc_buck1_4(3),
229 regulator_desc_buck1_4(4),
230 regulator_desc_buck5
,
231 regulator_desc_buck6_8(6),
232 regulator_desc_buck6_8(7),
233 regulator_desc_buck6_8(8),
234 regulator_desc_buck9
,
235 regulator_desc_buck10
,
238 static int s2mps11_pmic_probe(struct platform_device
*pdev
)
240 struct sec_pmic_dev
*iodev
= dev_get_drvdata(pdev
->dev
.parent
);
241 struct sec_platform_data
*pdata
= dev_get_platdata(iodev
->dev
);
242 struct regulator_config config
= { };
243 struct s2mps11_info
*s2mps11
;
245 unsigned char ramp_enable
, ramp_reg
= 0;
248 dev_err(pdev
->dev
.parent
, "Platform data not supplied\n");
252 s2mps11
= devm_kzalloc(&pdev
->dev
, sizeof(struct s2mps11_info
),
257 platform_set_drvdata(pdev
, s2mps11
);
259 s2mps11
->ramp_delay2
= pdata
->buck2_ramp_delay
;
260 s2mps11
->ramp_delay34
= pdata
->buck34_ramp_delay
;
261 s2mps11
->ramp_delay5
= pdata
->buck5_ramp_delay
;
262 s2mps11
->ramp_delay16
= pdata
->buck16_ramp_delay
;
263 s2mps11
->ramp_delay7810
= pdata
->buck7810_ramp_delay
;
264 s2mps11
->ramp_delay9
= pdata
->buck9_ramp_delay
;
266 s2mps11
->buck6_ramp
= pdata
->buck6_ramp_enable
;
267 s2mps11
->buck2_ramp
= pdata
->buck2_ramp_enable
;
268 s2mps11
->buck3_ramp
= pdata
->buck3_ramp_enable
;
269 s2mps11
->buck4_ramp
= pdata
->buck4_ramp_enable
;
271 ramp_enable
= (s2mps11
->buck2_ramp
<< 3) | (s2mps11
->buck3_ramp
<< 2) |
272 (s2mps11
->buck4_ramp
<< 1) | s2mps11
->buck6_ramp
;
275 if (s2mps11
->buck2_ramp
)
276 ramp_reg
|= get_ramp_delay(s2mps11
->ramp_delay2
) << 6;
277 if (s2mps11
->buck3_ramp
|| s2mps11
->buck4_ramp
)
278 ramp_reg
|= get_ramp_delay(s2mps11
->ramp_delay34
) << 4;
279 sec_reg_write(iodev
, S2MPS11_REG_RAMP
, ramp_reg
| ramp_enable
);
283 ramp_reg
|= get_ramp_delay(s2mps11
->ramp_delay5
) << 6;
284 ramp_reg
|= get_ramp_delay(s2mps11
->ramp_delay16
) << 4;
285 ramp_reg
|= get_ramp_delay(s2mps11
->ramp_delay7810
) << 2;
286 ramp_reg
|= get_ramp_delay(s2mps11
->ramp_delay9
);
287 sec_reg_write(iodev
, S2MPS11_REG_RAMP_BUCK
, ramp_reg
);
289 for (i
= 0; i
< S2MPS11_REGULATOR_MAX
; i
++) {
291 config
.dev
= &pdev
->dev
;
292 config
.regmap
= iodev
->regmap
;
293 config
.init_data
= pdata
->regulators
[i
].initdata
;
294 config
.driver_data
= s2mps11
;
296 s2mps11
->rdev
[i
] = regulator_register(®ulators
[i
], &config
);
297 if (IS_ERR(s2mps11
->rdev
[i
])) {
298 ret
= PTR_ERR(s2mps11
->rdev
[i
]);
299 dev_err(&pdev
->dev
, "regulator init failed for %d\n",
301 s2mps11
->rdev
[i
] = NULL
;
308 for (i
= 0; i
< S2MPS11_REGULATOR_MAX
; i
++)
309 regulator_unregister(s2mps11
->rdev
[i
]);
314 static int s2mps11_pmic_remove(struct platform_device
*pdev
)
316 struct s2mps11_info
*s2mps11
= platform_get_drvdata(pdev
);
319 for (i
= 0; i
< S2MPS11_REGULATOR_MAX
; i
++)
320 regulator_unregister(s2mps11
->rdev
[i
]);
325 static const struct platform_device_id s2mps11_pmic_id
[] = {
326 { "s2mps11-pmic", 0},
329 MODULE_DEVICE_TABLE(platform
, s2mps11_pmic_id
);
331 static struct platform_driver s2mps11_pmic_driver
= {
333 .name
= "s2mps11-pmic",
334 .owner
= THIS_MODULE
,
336 .probe
= s2mps11_pmic_probe
,
337 .remove
= s2mps11_pmic_remove
,
338 .id_table
= s2mps11_pmic_id
,
341 static int __init
s2mps11_pmic_init(void)
343 return platform_driver_register(&s2mps11_pmic_driver
);
345 subsys_initcall(s2mps11_pmic_init
);
347 static void __exit
s2mps11_pmic_exit(void)
349 platform_driver_unregister(&s2mps11_pmic_driver
);
351 module_exit(s2mps11_pmic_exit
);
353 /* Module information */
354 MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
355 MODULE_DESCRIPTION("SAMSUNG S2MPS11 Regulator Driver");
356 MODULE_LICENSE("GPL");