1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
|
// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright (C) 2019 ROHM Semiconductors
//
// ROHM BD71828 PMIC driver
#include <linux/gpio_keys.h>
#include <linux/i2c.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/mfd/rohm-bd71828.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/types.h>
static struct gpio_keys_button button = {
.code = KEY_POWER,
.gpio = -1,
.type = EV_KEY,
};
static struct gpio_keys_platform_data bd71828_powerkey_data = {
.buttons = &button,
.nbuttons = 1,
.name = "bd71828-pwrkey",
};
static const struct resource rtc_irqs[] = {
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC0, "bd71828-rtc-alm-0"),
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC1, "bd71828-rtc-alm-1"),
DEFINE_RES_IRQ_NAMED(BD71828_INT_RTC2, "bd71828-rtc-alm-2"),
};
static struct mfd_cell bd71828_mfd_cells[] = {
{ .name = "bd71828-pmic", },
{ .name = "bd71828-gpio", },
{ .name = "bd71828-led", .of_compatible = "rohm,bd71828-leds" },
/*
* We use BD71837 driver to drive the clock block. Only differences to
* BD70528 clock gate are the register address and mask.
*/
{ .name = "bd71828-clk", },
{ .name = "bd71827-power", },
{
.name = "bd71828-rtc",
.resources = rtc_irqs,
.num_resources = ARRAY_SIZE(rtc_irqs),
}, {
.name = "gpio-keys",
.platform_data = &bd71828_powerkey_data,
.pdata_size = sizeof(bd71828_powerkey_data),
},
};
static const struct regmap_range volatile_ranges[] = {
{
.range_min = BD71828_REG_PS_CTRL_1,
.range_max = BD71828_REG_PS_CTRL_1,
}, {
.range_min = BD71828_REG_PS_CTRL_3,
.range_max = BD71828_REG_PS_CTRL_3,
}, {
.range_min = BD71828_REG_RTC_SEC,
.range_max = BD71828_REG_RTC_YEAR,
}, {
/*
* For now make all charger registers volatile because many
* needs to be and because the charger block is not that
* performance critical.
*/
.range_min = BD71828_REG_CHG_STATE,
.range_max = BD71828_REG_CHG_FULL,
}, {
.range_min = BD71828_REG_INT_MAIN,
.range_max = BD71828_REG_IO_STAT,
},
};
static const struct regmap_access_table volatile_regs = {
.yes_ranges = &volatile_ranges[0],
.n_yes_ranges = ARRAY_SIZE(volatile_ranges),
};
static struct regmap_config bd71828_regmap = {
.reg_bits = 8,
.val_bits = 8,
.volatile_table = &volatile_regs,
.max_register = BD71828_MAX_REGISTER,
.cache_type = REGCACHE_RBTREE,
};
/*
* Mapping of main IRQ register bits to sub-IRQ register offsets so that we can
* access corect sub-IRQ registers based on bits that are set in main IRQ
* register.
*/
static unsigned int bit0_offsets[] = {11}; /* RTC IRQ */
static unsigned int bit1_offsets[] = {10}; /* TEMP IRQ */
static unsigned int bit2_offsets[] = {6, 7, 8, 9}; /* BAT MON IRQ */
static unsigned int bit3_offsets[] = {5}; /* BAT IRQ */
static unsigned int bit4_offsets[] = {4}; /* CHG IRQ */
static unsigned int bit5_offsets[] = {3}; /* VSYS IRQ */
static unsigned int bit6_offsets[] = {1, 2}; /* DCIN IRQ */
static unsigned int bit7_offsets[] = {0}; /* BUCK IRQ */
static struct regmap_irq_sub_irq_map bd71828_sub_irq_offsets[] = {
REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets),
REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets),
};
static struct regmap_irq bd71828_irqs[] = {
REGMAP_IRQ_REG(BD71828_INT_BUCK1_OCP, 0, BD71828_INT_BUCK1_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK2_OCP, 0, BD71828_INT_BUCK2_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK3_OCP, 0, BD71828_INT_BUCK3_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK4_OCP, 0, BD71828_INT_BUCK4_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK5_OCP, 0, BD71828_INT_BUCK5_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK6_OCP, 0, BD71828_INT_BUCK6_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_BUCK7_OCP, 0, BD71828_INT_BUCK7_OCP_MASK),
REGMAP_IRQ_REG(BD71828_INT_PGFAULT, 0, BD71828_INT_PGFAULT_MASK),
/* DCIN1 interrupts */
REGMAP_IRQ_REG(BD71828_INT_DCIN_DET, 1, BD71828_INT_DCIN_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_DCIN_RMV, 1, BD71828_INT_DCIN_RMV_MASK),
REGMAP_IRQ_REG(BD71828_INT_CLPS_OUT, 1, BD71828_INT_CLPS_OUT_MASK),
REGMAP_IRQ_REG(BD71828_INT_CLPS_IN, 1, BD71828_INT_CLPS_IN_MASK),
/* DCIN2 interrupts */
REGMAP_IRQ_REG(BD71828_INT_DCIN_MON_RES, 2,
BD71828_INT_DCIN_MON_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_DCIN_MON_DET, 2,
BD71828_INT_DCIN_MON_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_LONGPUSH, 2, BD71828_INT_LONGPUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_MIDPUSH, 2, BD71828_INT_MIDPUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_SHORTPUSH, 2, BD71828_INT_SHORTPUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_PUSH, 2, BD71828_INT_PUSH_MASK),
REGMAP_IRQ_REG(BD71828_INT_WDOG, 2, BD71828_INT_WDOG_MASK),
REGMAP_IRQ_REG(BD71828_INT_SWRESET, 2, BD71828_INT_SWRESET_MASK),
/* Vsys */
REGMAP_IRQ_REG(BD71828_INT_VSYS_UV_RES, 3,
BD71828_INT_VSYS_UV_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_UV_DET, 3,
BD71828_INT_VSYS_UV_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_LOW_RES, 3,
BD71828_INT_VSYS_LOW_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_LOW_DET, 3,
BD71828_INT_VSYS_LOW_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_HALL_IN, 3,
BD71828_INT_VSYS_HALL_IN_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_HALL_TOGGLE, 3,
BD71828_INT_VSYS_HALL_TOGGLE_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_MON_RES, 3,
BD71828_INT_VSYS_MON_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_VSYS_MON_DET, 3,
BD71828_INT_VSYS_MON_DET_MASK),
/* Charger */
REGMAP_IRQ_REG(BD71828_INT_CHG_DCIN_ILIM, 4,
BD71828_INT_CHG_DCIN_ILIM_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_TOPOFF_TO_DONE, 4,
BD71828_INT_CHG_TOPOFF_TO_DONE_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_WDG_TEMP, 4,
BD71828_INT_CHG_WDG_TEMP_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_WDG_TIME, 4,
BD71828_INT_CHG_WDG_TIME_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_RECHARGE_RES, 4,
BD71828_INT_CHG_RECHARGE_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_RECHARGE_DET, 4,
BD71828_INT_CHG_RECHARGE_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_RANGED_TEMP_TRANSITION, 4,
BD71828_INT_CHG_RANGED_TEMP_TRANSITION_MASK),
REGMAP_IRQ_REG(BD71828_INT_CHG_STATE_TRANSITION, 4,
BD71828_INT_CHG_STATE_TRANSITION_MASK),
/* Battery */
REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_NORMAL, 5,
BD71828_INT_BAT_TEMP_NORMAL_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_ERANGE, 5,
BD71828_INT_BAT_TEMP_ERANGE_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_TEMP_WARN, 5,
BD71828_INT_BAT_TEMP_WARN_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_REMOVED, 5,
BD71828_INT_BAT_REMOVED_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_DETECTED, 5,
BD71828_INT_BAT_DETECTED_MASK),
REGMAP_IRQ_REG(BD71828_INT_THERM_REMOVED, 5,
BD71828_INT_THERM_REMOVED_MASK),
REGMAP_IRQ_REG(BD71828_INT_THERM_DETECTED, 5,
BD71828_INT_THERM_DETECTED_MASK),
/* Battery Mon 1 */
REGMAP_IRQ_REG(BD71828_INT_BAT_DEAD, 6, BD71828_INT_BAT_DEAD_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_SHORTC_RES, 6,
BD71828_INT_BAT_SHORTC_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_SHORTC_DET, 6,
BD71828_INT_BAT_SHORTC_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_LOW_VOLT_RES, 6,
BD71828_INT_BAT_LOW_VOLT_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_LOW_VOLT_DET, 6,
BD71828_INT_BAT_LOW_VOLT_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_VOLT_RES, 6,
BD71828_INT_BAT_OVER_VOLT_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_VOLT_DET, 6,
BD71828_INT_BAT_OVER_VOLT_DET_MASK),
/* Battery Mon 2 */
REGMAP_IRQ_REG(BD71828_INT_BAT_MON_RES, 7,
BD71828_INT_BAT_MON_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_MON_DET, 7,
BD71828_INT_BAT_MON_DET_MASK),
/* Battery Mon 3 (Coulomb counter) */
REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON1, 8,
BD71828_INT_BAT_CC_MON1_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON2, 8,
BD71828_INT_BAT_CC_MON2_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_CC_MON3, 8,
BD71828_INT_BAT_CC_MON3_MASK),
/* Battery Mon 4 */
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_1_RES, 9,
BD71828_INT_BAT_OVER_CURR_1_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_1_DET, 9,
BD71828_INT_BAT_OVER_CURR_1_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_2_RES, 9,
BD71828_INT_BAT_OVER_CURR_2_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_2_DET, 9,
BD71828_INT_BAT_OVER_CURR_2_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_3_RES, 9,
BD71828_INT_BAT_OVER_CURR_3_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_BAT_OVER_CURR_3_DET, 9,
BD71828_INT_BAT_OVER_CURR_3_DET_MASK),
/* Temperature */
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_LOW_RES, 10,
BD71828_INT_TEMP_BAT_LOW_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_LOW_DET, 10,
BD71828_INT_TEMP_BAT_LOW_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_HI_RES, 10,
BD71828_INT_TEMP_BAT_HI_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_BAT_HI_DET, 10,
BD71828_INT_TEMP_BAT_HI_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_125_RES, 10,
BD71828_INT_TEMP_CHIP_OVER_125_RES_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_125_DET, 10,
BD71828_INT_TEMP_CHIP_OVER_125_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_VF_DET, 10,
BD71828_INT_TEMP_CHIP_OVER_VF_DET_MASK),
REGMAP_IRQ_REG(BD71828_INT_TEMP_CHIP_OVER_VF_RES, 10,
BD71828_INT_TEMP_CHIP_OVER_VF_RES_MASK),
/* RTC Alarm */
REGMAP_IRQ_REG(BD71828_INT_RTC0, 11, BD71828_INT_RTC0_MASK),
REGMAP_IRQ_REG(BD71828_INT_RTC1, 11, BD71828_INT_RTC1_MASK),
REGMAP_IRQ_REG(BD71828_INT_RTC2, 11, BD71828_INT_RTC2_MASK),
};
static struct regmap_irq_chip bd71828_irq_chip = {
.name = "bd71828_irq",
.main_status = BD71828_REG_INT_MAIN,
.irqs = &bd71828_irqs[0],
.num_irqs = ARRAY_SIZE(bd71828_irqs),
.status_base = BD71828_REG_INT_BUCK,
.mask_base = BD71828_REG_INT_MASK_BUCK,
.ack_base = BD71828_REG_INT_BUCK,
.mask_invert = true,
.init_ack_masked = true,
.num_regs = 12,
.num_main_regs = 1,
.sub_reg_offsets = &bd71828_sub_irq_offsets[0],
.num_main_status_bits = 8,
.irq_reg_stride = 1,
};
static int bd71828_i2c_probe(struct i2c_client *i2c)
{
struct rohm_regmap_dev *chip;
struct regmap_irq_chip_data *irq_data;
int ret;
if (!i2c->irq) {
dev_err(&i2c->dev, "No IRQ configured\n");
return -EINVAL;
}
chip = devm_kzalloc(&i2c->dev, sizeof(*chip), GFP_KERNEL);
if (!chip)
return -ENOMEM;
dev_set_drvdata(&i2c->dev, chip);
chip->regmap = devm_regmap_init_i2c(i2c, &bd71828_regmap);
if (IS_ERR(chip->regmap)) {
dev_err(&i2c->dev, "Failed to initialize Regmap\n");
return PTR_ERR(chip->regmap);
}
ret = devm_regmap_add_irq_chip(&i2c->dev, chip->regmap,
i2c->irq, IRQF_ONESHOT, 0,
&bd71828_irq_chip, &irq_data);
if (ret) {
dev_err(&i2c->dev, "Failed to add IRQ chip\n");
return ret;
}
dev_dbg(&i2c->dev, "Registered %d IRQs for chip\n",
bd71828_irq_chip.num_irqs);
ret = regmap_irq_get_virq(irq_data, BD71828_INT_SHORTPUSH);
if (ret < 0) {
dev_err(&i2c->dev, "Failed to get the power-key IRQ\n");
return ret;
}
button.irq = ret;
ret = devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO,
bd71828_mfd_cells,
ARRAY_SIZE(bd71828_mfd_cells), NULL, 0,
regmap_irq_get_domain(irq_data));
if (ret)
dev_err(&i2c->dev, "Failed to create subdevices\n");
return ret;
}
static const struct of_device_id bd71828_of_match[] = {
{ .compatible = "rohm,bd71828", },
{ },
};
MODULE_DEVICE_TABLE(of, bd71828_of_match);
static struct i2c_driver bd71828_drv = {
.driver = {
.name = "rohm-bd71828",
.of_match_table = bd71828_of_match,
},
.probe_new = &bd71828_i2c_probe,
};
module_i2c_driver(bd71828_drv);
MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
MODULE_DESCRIPTION("ROHM BD71828 Power Management IC driver");
MODULE_LICENSE("GPL");
|
