Commit | Line | Data |
---|---|---|
62579266 RV |
1 | /* |
2 | * Copyright (C) ST-Ericsson SA 2010 | |
3 | * | |
4 | * License Terms: GNU General Public License v2 | |
5 | * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> | |
6 | * Author: Rabin Vincent <rabin.vincent@stericsson.com> | |
adceed62 | 7 | * Author: Mattias Wallin <mattias.wallin@stericsson.com> |
62579266 RV |
8 | */ |
9 | ||
10 | #include <linux/kernel.h> | |
11 | #include <linux/slab.h> | |
12 | #include <linux/init.h> | |
13 | #include <linux/irq.h> | |
06e589ef | 14 | #include <linux/irqdomain.h> |
62579266 RV |
15 | #include <linux/delay.h> |
16 | #include <linux/interrupt.h> | |
17 | #include <linux/module.h> | |
18 | #include <linux/platform_device.h> | |
19 | #include <linux/mfd/core.h> | |
47c16975 | 20 | #include <linux/mfd/abx500.h> |
ee66e653 | 21 | #include <linux/mfd/abx500/ab8500.h> |
00441b5e | 22 | #include <linux/mfd/abx500/ab8500-bm.h> |
d28f1db8 | 23 | #include <linux/mfd/dbx500-prcmu.h> |
549931f9 | 24 | #include <linux/regulator/ab8500.h> |
6bc4a568 LJ |
25 | #include <linux/of.h> |
26 | #include <linux/of_device.h> | |
62579266 RV |
27 | |
28 | /* | |
29 | * Interrupt register offsets | |
30 | * Bank : 0x0E | |
31 | */ | |
47c16975 MW |
32 | #define AB8500_IT_SOURCE1_REG 0x00 |
33 | #define AB8500_IT_SOURCE2_REG 0x01 | |
34 | #define AB8500_IT_SOURCE3_REG 0x02 | |
35 | #define AB8500_IT_SOURCE4_REG 0x03 | |
36 | #define AB8500_IT_SOURCE5_REG 0x04 | |
37 | #define AB8500_IT_SOURCE6_REG 0x05 | |
38 | #define AB8500_IT_SOURCE7_REG 0x06 | |
39 | #define AB8500_IT_SOURCE8_REG 0x07 | |
d6255529 | 40 | #define AB9540_IT_SOURCE13_REG 0x0C |
47c16975 MW |
41 | #define AB8500_IT_SOURCE19_REG 0x12 |
42 | #define AB8500_IT_SOURCE20_REG 0x13 | |
43 | #define AB8500_IT_SOURCE21_REG 0x14 | |
44 | #define AB8500_IT_SOURCE22_REG 0x15 | |
45 | #define AB8500_IT_SOURCE23_REG 0x16 | |
46 | #define AB8500_IT_SOURCE24_REG 0x17 | |
62579266 RV |
47 | |
48 | /* | |
49 | * latch registers | |
50 | */ | |
47c16975 MW |
51 | #define AB8500_IT_LATCH1_REG 0x20 |
52 | #define AB8500_IT_LATCH2_REG 0x21 | |
53 | #define AB8500_IT_LATCH3_REG 0x22 | |
54 | #define AB8500_IT_LATCH4_REG 0x23 | |
55 | #define AB8500_IT_LATCH5_REG 0x24 | |
56 | #define AB8500_IT_LATCH6_REG 0x25 | |
57 | #define AB8500_IT_LATCH7_REG 0x26 | |
58 | #define AB8500_IT_LATCH8_REG 0x27 | |
59 | #define AB8500_IT_LATCH9_REG 0x28 | |
60 | #define AB8500_IT_LATCH10_REG 0x29 | |
92d50a41 | 61 | #define AB8500_IT_LATCH12_REG 0x2B |
d6255529 | 62 | #define AB9540_IT_LATCH13_REG 0x2C |
47c16975 MW |
63 | #define AB8500_IT_LATCH19_REG 0x32 |
64 | #define AB8500_IT_LATCH20_REG 0x33 | |
65 | #define AB8500_IT_LATCH21_REG 0x34 | |
66 | #define AB8500_IT_LATCH22_REG 0x35 | |
67 | #define AB8500_IT_LATCH23_REG 0x36 | |
68 | #define AB8500_IT_LATCH24_REG 0x37 | |
62579266 RV |
69 | |
70 | /* | |
71 | * mask registers | |
72 | */ | |
73 | ||
47c16975 MW |
74 | #define AB8500_IT_MASK1_REG 0x40 |
75 | #define AB8500_IT_MASK2_REG 0x41 | |
76 | #define AB8500_IT_MASK3_REG 0x42 | |
77 | #define AB8500_IT_MASK4_REG 0x43 | |
78 | #define AB8500_IT_MASK5_REG 0x44 | |
79 | #define AB8500_IT_MASK6_REG 0x45 | |
80 | #define AB8500_IT_MASK7_REG 0x46 | |
81 | #define AB8500_IT_MASK8_REG 0x47 | |
82 | #define AB8500_IT_MASK9_REG 0x48 | |
83 | #define AB8500_IT_MASK10_REG 0x49 | |
84 | #define AB8500_IT_MASK11_REG 0x4A | |
85 | #define AB8500_IT_MASK12_REG 0x4B | |
86 | #define AB8500_IT_MASK13_REG 0x4C | |
87 | #define AB8500_IT_MASK14_REG 0x4D | |
88 | #define AB8500_IT_MASK15_REG 0x4E | |
89 | #define AB8500_IT_MASK16_REG 0x4F | |
90 | #define AB8500_IT_MASK17_REG 0x50 | |
91 | #define AB8500_IT_MASK18_REG 0x51 | |
92 | #define AB8500_IT_MASK19_REG 0x52 | |
93 | #define AB8500_IT_MASK20_REG 0x53 | |
94 | #define AB8500_IT_MASK21_REG 0x54 | |
95 | #define AB8500_IT_MASK22_REG 0x55 | |
96 | #define AB8500_IT_MASK23_REG 0x56 | |
97 | #define AB8500_IT_MASK24_REG 0x57 | |
a29264b6 | 98 | #define AB8500_IT_MASK25_REG 0x58 |
47c16975 | 99 | |
7ccfe9b1 MJ |
100 | /* |
101 | * latch hierarchy registers | |
102 | */ | |
103 | #define AB8500_IT_LATCHHIER1_REG 0x60 | |
104 | #define AB8500_IT_LATCHHIER2_REG 0x61 | |
105 | #define AB8500_IT_LATCHHIER3_REG 0x62 | |
106 | ||
107 | #define AB8500_IT_LATCHHIER_NUM 3 | |
108 | ||
47c16975 | 109 | #define AB8500_REV_REG 0x80 |
0f620837 | 110 | #define AB8500_IC_NAME_REG 0x82 |
e5c238c3 | 111 | #define AB8500_SWITCH_OFF_STATUS 0x00 |
62579266 | 112 | |
b4a31037 AL |
113 | #define AB8500_TURN_ON_STATUS 0x00 |
114 | ||
f04a9d8a RK |
115 | #define AB8500_CH_USBCH_STAT1_REG 0x02 |
116 | #define VBUS_DET_DBNC100 0x02 | |
117 | #define VBUS_DET_DBNC1 0x01 | |
118 | ||
119 | static DEFINE_SPINLOCK(on_stat_lock); | |
120 | static u8 turn_on_stat_mask = 0xFF; | |
121 | static u8 turn_on_stat_set; | |
6ef9418c RA |
122 | static bool no_bm; /* No battery management */ |
123 | module_param(no_bm, bool, S_IRUGO); | |
124 | ||
d6255529 LW |
125 | #define AB9540_MODEM_CTRL2_REG 0x23 |
126 | #define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT BIT(2) | |
127 | ||
62579266 RV |
128 | /* |
129 | * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt | |
2ced445e LW |
130 | * numbers are indexed into this array with (num / 8). The interupts are |
131 | * defined in linux/mfd/ab8500.h | |
62579266 RV |
132 | * |
133 | * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at | |
134 | * offset 0. | |
135 | */ | |
2ced445e | 136 | /* AB8500 support */ |
62579266 | 137 | static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = { |
92d50a41 | 138 | 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, |
62579266 RV |
139 | }; |
140 | ||
a29264b6 | 141 | /* AB9540 / AB8505 support */ |
d6255529 | 142 | static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = { |
a29264b6 | 143 | 0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23 |
d6255529 LW |
144 | }; |
145 | ||
0f620837 LW |
146 | static const char ab8500_version_str[][7] = { |
147 | [AB8500_VERSION_AB8500] = "AB8500", | |
148 | [AB8500_VERSION_AB8505] = "AB8505", | |
149 | [AB8500_VERSION_AB9540] = "AB9540", | |
150 | [AB8500_VERSION_AB8540] = "AB8540", | |
151 | }; | |
152 | ||
822672a7 | 153 | static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data) |
d28f1db8 LJ |
154 | { |
155 | int ret; | |
156 | ||
157 | ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1); | |
158 | if (ret < 0) | |
159 | dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); | |
160 | return ret; | |
161 | } | |
162 | ||
822672a7 | 163 | static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask, |
d28f1db8 LJ |
164 | u8 data) |
165 | { | |
166 | int ret; | |
167 | ||
168 | ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data, | |
169 | &mask, 1); | |
170 | if (ret < 0) | |
171 | dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); | |
172 | return ret; | |
173 | } | |
174 | ||
822672a7 | 175 | static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr) |
d28f1db8 LJ |
176 | { |
177 | int ret; | |
178 | u8 data; | |
179 | ||
180 | ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1); | |
181 | if (ret < 0) { | |
182 | dev_err(ab8500->dev, "prcmu i2c error %d\n", ret); | |
183 | return ret; | |
184 | } | |
185 | return (int)data; | |
186 | } | |
187 | ||
47c16975 MW |
188 | static int ab8500_get_chip_id(struct device *dev) |
189 | { | |
6bce7bf1 MW |
190 | struct ab8500 *ab8500; |
191 | ||
192 | if (!dev) | |
193 | return -EINVAL; | |
194 | ab8500 = dev_get_drvdata(dev->parent); | |
195 | return ab8500 ? (int)ab8500->chip_id : -EINVAL; | |
47c16975 MW |
196 | } |
197 | ||
198 | static int set_register_interruptible(struct ab8500 *ab8500, u8 bank, | |
199 | u8 reg, u8 data) | |
62579266 RV |
200 | { |
201 | int ret; | |
47c16975 MW |
202 | /* |
203 | * Put the u8 bank and u8 register together into a an u16. | |
204 | * The bank on higher 8 bits and register in lower 8 bits. | |
205 | * */ | |
206 | u16 addr = ((u16)bank) << 8 | reg; | |
62579266 RV |
207 | |
208 | dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data); | |
209 | ||
392cbd1e | 210 | mutex_lock(&ab8500->lock); |
47c16975 | 211 | |
62579266 RV |
212 | ret = ab8500->write(ab8500, addr, data); |
213 | if (ret < 0) | |
214 | dev_err(ab8500->dev, "failed to write reg %#x: %d\n", | |
215 | addr, ret); | |
47c16975 | 216 | mutex_unlock(&ab8500->lock); |
62579266 RV |
217 | |
218 | return ret; | |
219 | } | |
220 | ||
47c16975 MW |
221 | static int ab8500_set_register(struct device *dev, u8 bank, |
222 | u8 reg, u8 value) | |
62579266 | 223 | { |
112a80d2 | 224 | int ret; |
47c16975 | 225 | struct ab8500 *ab8500 = dev_get_drvdata(dev->parent); |
62579266 | 226 | |
112a80d2 JA |
227 | atomic_inc(&ab8500->transfer_ongoing); |
228 | ret = set_register_interruptible(ab8500, bank, reg, value); | |
229 | atomic_dec(&ab8500->transfer_ongoing); | |
230 | return ret; | |
62579266 | 231 | } |
62579266 | 232 | |
47c16975 MW |
233 | static int get_register_interruptible(struct ab8500 *ab8500, u8 bank, |
234 | u8 reg, u8 *value) | |
62579266 RV |
235 | { |
236 | int ret; | |
47c16975 MW |
237 | /* put the u8 bank and u8 reg together into a an u16. |
238 | * bank on higher 8 bits and reg in lower */ | |
239 | u16 addr = ((u16)bank) << 8 | reg; | |
240 | ||
392cbd1e | 241 | mutex_lock(&ab8500->lock); |
62579266 RV |
242 | |
243 | ret = ab8500->read(ab8500, addr); | |
244 | if (ret < 0) | |
245 | dev_err(ab8500->dev, "failed to read reg %#x: %d\n", | |
246 | addr, ret); | |
47c16975 MW |
247 | else |
248 | *value = ret; | |
62579266 | 249 | |
47c16975 | 250 | mutex_unlock(&ab8500->lock); |
62579266 RV |
251 | dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret); |
252 | ||
253 | return ret; | |
254 | } | |
255 | ||
47c16975 MW |
256 | static int ab8500_get_register(struct device *dev, u8 bank, |
257 | u8 reg, u8 *value) | |
62579266 | 258 | { |
112a80d2 | 259 | int ret; |
47c16975 | 260 | struct ab8500 *ab8500 = dev_get_drvdata(dev->parent); |
62579266 | 261 | |
112a80d2 JA |
262 | atomic_inc(&ab8500->transfer_ongoing); |
263 | ret = get_register_interruptible(ab8500, bank, reg, value); | |
264 | atomic_dec(&ab8500->transfer_ongoing); | |
265 | return ret; | |
62579266 | 266 | } |
47c16975 MW |
267 | |
268 | static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank, | |
269 | u8 reg, u8 bitmask, u8 bitvalues) | |
62579266 RV |
270 | { |
271 | int ret; | |
47c16975 MW |
272 | /* put the u8 bank and u8 reg together into a an u16. |
273 | * bank on higher 8 bits and reg in lower */ | |
274 | u16 addr = ((u16)bank) << 8 | reg; | |
62579266 | 275 | |
392cbd1e | 276 | mutex_lock(&ab8500->lock); |
62579266 | 277 | |
bc628fd1 MN |
278 | if (ab8500->write_masked == NULL) { |
279 | u8 data; | |
62579266 | 280 | |
bc628fd1 MN |
281 | ret = ab8500->read(ab8500, addr); |
282 | if (ret < 0) { | |
283 | dev_err(ab8500->dev, "failed to read reg %#x: %d\n", | |
284 | addr, ret); | |
285 | goto out; | |
286 | } | |
62579266 | 287 | |
bc628fd1 MN |
288 | data = (u8)ret; |
289 | data = (~bitmask & data) | (bitmask & bitvalues); | |
290 | ||
291 | ret = ab8500->write(ab8500, addr, data); | |
292 | if (ret < 0) | |
293 | dev_err(ab8500->dev, "failed to write reg %#x: %d\n", | |
294 | addr, ret); | |
62579266 | 295 | |
bc628fd1 MN |
296 | dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr, |
297 | data); | |
298 | goto out; | |
299 | } | |
300 | ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues); | |
301 | if (ret < 0) | |
302 | dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr, | |
303 | ret); | |
62579266 RV |
304 | out: |
305 | mutex_unlock(&ab8500->lock); | |
306 | return ret; | |
307 | } | |
47c16975 MW |
308 | |
309 | static int ab8500_mask_and_set_register(struct device *dev, | |
310 | u8 bank, u8 reg, u8 bitmask, u8 bitvalues) | |
311 | { | |
112a80d2 | 312 | int ret; |
47c16975 MW |
313 | struct ab8500 *ab8500 = dev_get_drvdata(dev->parent); |
314 | ||
112a80d2 JA |
315 | atomic_inc(&ab8500->transfer_ongoing); |
316 | ret= mask_and_set_register_interruptible(ab8500, bank, reg, | |
317 | bitmask, bitvalues); | |
318 | atomic_dec(&ab8500->transfer_ongoing); | |
319 | return ret; | |
47c16975 MW |
320 | } |
321 | ||
322 | static struct abx500_ops ab8500_ops = { | |
323 | .get_chip_id = ab8500_get_chip_id, | |
324 | .get_register = ab8500_get_register, | |
325 | .set_register = ab8500_set_register, | |
326 | .get_register_page = NULL, | |
327 | .set_register_page = NULL, | |
328 | .mask_and_set_register = ab8500_mask_and_set_register, | |
329 | .event_registers_startup_state_get = NULL, | |
330 | .startup_irq_enabled = NULL, | |
1d843a6c | 331 | .dump_all_banks = ab8500_dump_all_banks, |
47c16975 | 332 | }; |
62579266 | 333 | |
9505a0a0 | 334 | static void ab8500_irq_lock(struct irq_data *data) |
62579266 | 335 | { |
9505a0a0 | 336 | struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
62579266 RV |
337 | |
338 | mutex_lock(&ab8500->irq_lock); | |
112a80d2 | 339 | atomic_inc(&ab8500->transfer_ongoing); |
62579266 RV |
340 | } |
341 | ||
9505a0a0 | 342 | static void ab8500_irq_sync_unlock(struct irq_data *data) |
62579266 | 343 | { |
9505a0a0 | 344 | struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
62579266 RV |
345 | int i; |
346 | ||
2ced445e | 347 | for (i = 0; i < ab8500->mask_size; i++) { |
62579266 RV |
348 | u8 old = ab8500->oldmask[i]; |
349 | u8 new = ab8500->mask[i]; | |
350 | int reg; | |
351 | ||
352 | if (new == old) | |
353 | continue; | |
354 | ||
0f620837 LW |
355 | /* |
356 | * Interrupt register 12 doesn't exist prior to AB8500 version | |
357 | * 2.0 | |
358 | */ | |
359 | if (ab8500->irq_reg_offset[i] == 11 && | |
360 | is_ab8500_1p1_or_earlier(ab8500)) | |
92d50a41 MW |
361 | continue; |
362 | ||
62579266 RV |
363 | ab8500->oldmask[i] = new; |
364 | ||
2ced445e | 365 | reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i]; |
47c16975 | 366 | set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new); |
62579266 | 367 | } |
112a80d2 | 368 | atomic_dec(&ab8500->transfer_ongoing); |
62579266 RV |
369 | mutex_unlock(&ab8500->irq_lock); |
370 | } | |
371 | ||
9505a0a0 | 372 | static void ab8500_irq_mask(struct irq_data *data) |
62579266 | 373 | { |
9505a0a0 | 374 | struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
06e589ef | 375 | int offset = data->hwirq; |
62579266 RV |
376 | int index = offset / 8; |
377 | int mask = 1 << (offset % 8); | |
378 | ||
379 | ab8500->mask[index] |= mask; | |
9c677b9b LJ |
380 | |
381 | /* The AB8500 GPIOs have two interrupts each (rising & falling). */ | |
382 | if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R) | |
383 | ab8500->mask[index + 2] |= mask; | |
384 | if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R) | |
385 | ab8500->mask[index + 1] |= mask; | |
386 | if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R) | |
e2ddf46a LW |
387 | /* Here the falling IRQ is one bit lower */ |
388 | ab8500->mask[index] |= (mask << 1); | |
62579266 RV |
389 | } |
390 | ||
9505a0a0 | 391 | static void ab8500_irq_unmask(struct irq_data *data) |
62579266 | 392 | { |
9505a0a0 | 393 | struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data); |
9c677b9b | 394 | unsigned int type = irqd_get_trigger_type(data); |
06e589ef | 395 | int offset = data->hwirq; |
62579266 RV |
396 | int index = offset / 8; |
397 | int mask = 1 << (offset % 8); | |
398 | ||
9c677b9b LJ |
399 | if (type & IRQ_TYPE_EDGE_RISING) |
400 | ab8500->mask[index] &= ~mask; | |
401 | ||
402 | /* The AB8500 GPIOs have two interrupts each (rising & falling). */ | |
403 | if (type & IRQ_TYPE_EDGE_FALLING) { | |
404 | if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R) | |
405 | ab8500->mask[index + 2] &= ~mask; | |
406 | else if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R) | |
407 | ab8500->mask[index + 1] &= ~mask; | |
408 | else if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R) | |
e2ddf46a LW |
409 | /* Here the falling IRQ is one bit lower */ |
410 | ab8500->mask[index] &= ~(mask << 1); | |
9c677b9b LJ |
411 | else |
412 | ab8500->mask[index] &= ~mask; | |
e2ddf46a | 413 | } else { |
9c677b9b LJ |
414 | /* Satisfies the case where type is not set. */ |
415 | ab8500->mask[index] &= ~mask; | |
e2ddf46a | 416 | } |
62579266 RV |
417 | } |
418 | ||
40f6e5a2 LJ |
419 | static int ab8500_irq_set_type(struct irq_data *data, unsigned int type) |
420 | { | |
421 | return 0; | |
62579266 RV |
422 | } |
423 | ||
424 | static struct irq_chip ab8500_irq_chip = { | |
425 | .name = "ab8500", | |
9505a0a0 MB |
426 | .irq_bus_lock = ab8500_irq_lock, |
427 | .irq_bus_sync_unlock = ab8500_irq_sync_unlock, | |
428 | .irq_mask = ab8500_irq_mask, | |
e6f9306e | 429 | .irq_disable = ab8500_irq_mask, |
9505a0a0 | 430 | .irq_unmask = ab8500_irq_unmask, |
40f6e5a2 | 431 | .irq_set_type = ab8500_irq_set_type, |
62579266 RV |
432 | }; |
433 | ||
7ccfe9b1 MJ |
434 | static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500, |
435 | int latch_offset, u8 latch_val) | |
436 | { | |
437 | int int_bit = __ffs(latch_val); | |
438 | int line, i; | |
439 | ||
440 | do { | |
441 | int_bit = __ffs(latch_val); | |
442 | ||
443 | for (i = 0; i < ab8500->mask_size; i++) | |
444 | if (ab8500->irq_reg_offset[i] == latch_offset) | |
445 | break; | |
446 | ||
447 | if (i >= ab8500->mask_size) { | |
448 | dev_err(ab8500->dev, "Register offset 0x%2x not declared\n", | |
449 | latch_offset); | |
450 | return -ENXIO; | |
451 | } | |
452 | ||
453 | line = (i << 3) + int_bit; | |
454 | latch_val &= ~(1 << int_bit); | |
455 | ||
e2ddf46a LW |
456 | /* |
457 | * This handles the falling edge hwirqs from the GPIO | |
458 | * lines. Route them back to the line registered for the | |
459 | * rising IRQ, as this is merely a flag for the same IRQ | |
460 | * in linux terms. | |
461 | */ | |
462 | if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F) | |
463 | line -= 16; | |
464 | if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F) | |
465 | line -= 8; | |
466 | if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F) | |
467 | line += 1; | |
468 | ||
7ccfe9b1 MJ |
469 | handle_nested_irq(ab8500->irq_base + line); |
470 | } while (latch_val); | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
475 | static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500, | |
476 | int hier_offset, u8 hier_val) | |
477 | { | |
478 | int latch_bit, status; | |
479 | u8 latch_offset, latch_val; | |
480 | ||
481 | do { | |
482 | latch_bit = __ffs(hier_val); | |
483 | latch_offset = (hier_offset << 3) + latch_bit; | |
484 | ||
485 | /* Fix inconsistent ITFromLatch25 bit mapping... */ | |
486 | if (unlikely(latch_offset == 17)) | |
487 | latch_offset = 24; | |
488 | ||
489 | status = get_register_interruptible(ab8500, | |
490 | AB8500_INTERRUPT, | |
491 | AB8500_IT_LATCH1_REG + latch_offset, | |
492 | &latch_val); | |
493 | if (status < 0 || latch_val == 0) | |
494 | goto discard; | |
495 | ||
496 | status = ab8500_handle_hierarchical_line(ab8500, | |
497 | latch_offset, latch_val); | |
498 | if (status < 0) | |
499 | return status; | |
500 | discard: | |
501 | hier_val &= ~(1 << latch_bit); | |
502 | } while (hier_val); | |
503 | ||
504 | return 0; | |
505 | } | |
506 | ||
507 | static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev) | |
508 | { | |
509 | struct ab8500 *ab8500 = dev; | |
510 | u8 i; | |
511 | ||
512 | dev_vdbg(ab8500->dev, "interrupt\n"); | |
513 | ||
514 | /* Hierarchical interrupt version */ | |
515 | for (i = 0; i < AB8500_IT_LATCHHIER_NUM; i++) { | |
516 | int status; | |
517 | u8 hier_val; | |
518 | ||
519 | status = get_register_interruptible(ab8500, AB8500_INTERRUPT, | |
520 | AB8500_IT_LATCHHIER1_REG + i, &hier_val); | |
521 | if (status < 0 || hier_val == 0) | |
522 | continue; | |
523 | ||
524 | status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val); | |
525 | if (status < 0) | |
526 | break; | |
527 | } | |
528 | return IRQ_HANDLED; | |
529 | } | |
530 | ||
80633f05 LJ |
531 | /** |
532 | * ab8500_irq_get_virq(): Map an interrupt on a chip to a virtual IRQ | |
533 | * | |
534 | * @ab8500: ab8500_irq controller to operate on. | |
535 | * @irq: index of the interrupt requested in the chip IRQs | |
536 | * | |
537 | * Useful for drivers to request their own IRQs. | |
538 | */ | |
539 | static int ab8500_irq_get_virq(struct ab8500 *ab8500, int irq) | |
540 | { | |
541 | if (!ab8500) | |
542 | return -EINVAL; | |
543 | ||
544 | return irq_create_mapping(ab8500->domain, irq); | |
545 | } | |
546 | ||
62579266 RV |
547 | static irqreturn_t ab8500_irq(int irq, void *dev) |
548 | { | |
549 | struct ab8500 *ab8500 = dev; | |
550 | int i; | |
551 | ||
552 | dev_vdbg(ab8500->dev, "interrupt\n"); | |
553 | ||
112a80d2 JA |
554 | atomic_inc(&ab8500->transfer_ongoing); |
555 | ||
2ced445e LW |
556 | for (i = 0; i < ab8500->mask_size; i++) { |
557 | int regoffset = ab8500->irq_reg_offset[i]; | |
62579266 | 558 | int status; |
47c16975 | 559 | u8 value; |
62579266 | 560 | |
0f620837 LW |
561 | /* |
562 | * Interrupt register 12 doesn't exist prior to AB8500 version | |
563 | * 2.0 | |
564 | */ | |
565 | if (regoffset == 11 && is_ab8500_1p1_or_earlier(ab8500)) | |
92d50a41 MW |
566 | continue; |
567 | ||
47c16975 MW |
568 | status = get_register_interruptible(ab8500, AB8500_INTERRUPT, |
569 | AB8500_IT_LATCH1_REG + regoffset, &value); | |
570 | if (status < 0 || value == 0) | |
62579266 RV |
571 | continue; |
572 | ||
573 | do { | |
88aec4f7 | 574 | int bit = __ffs(value); |
62579266 | 575 | int line = i * 8 + bit; |
0a37fc56 | 576 | int virq = ab8500_irq_get_virq(ab8500, line); |
62579266 | 577 | |
0a37fc56 | 578 | handle_nested_irq(virq); |
8f0eb43b | 579 | ab8500_debug_register_interrupt(line); |
47c16975 | 580 | value &= ~(1 << bit); |
112a80d2 | 581 | |
47c16975 | 582 | } while (value); |
62579266 | 583 | } |
112a80d2 | 584 | atomic_dec(&ab8500->transfer_ongoing); |
62579266 RV |
585 | return IRQ_HANDLED; |
586 | } | |
587 | ||
06e589ef LJ |
588 | static int ab8500_irq_map(struct irq_domain *d, unsigned int virq, |
589 | irq_hw_number_t hwirq) | |
590 | { | |
591 | struct ab8500 *ab8500 = d->host_data; | |
592 | ||
593 | if (!ab8500) | |
594 | return -EINVAL; | |
595 | ||
596 | irq_set_chip_data(virq, ab8500); | |
597 | irq_set_chip_and_handler(virq, &ab8500_irq_chip, | |
598 | handle_simple_irq); | |
599 | irq_set_nested_thread(virq, 1); | |
62579266 | 600 | #ifdef CONFIG_ARM |
06e589ef | 601 | set_irq_flags(virq, IRQF_VALID); |
62579266 | 602 | #else |
06e589ef | 603 | irq_set_noprobe(virq); |
62579266 | 604 | #endif |
62579266 RV |
605 | |
606 | return 0; | |
607 | } | |
608 | ||
06e589ef LJ |
609 | static struct irq_domain_ops ab8500_irq_ops = { |
610 | .map = ab8500_irq_map, | |
611 | .xlate = irq_domain_xlate_twocell, | |
612 | }; | |
613 | ||
614 | static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np) | |
62579266 | 615 | { |
2ced445e LW |
616 | int num_irqs; |
617 | ||
d6255529 LW |
618 | if (is_ab9540(ab8500)) |
619 | num_irqs = AB9540_NR_IRQS; | |
a982362c BJ |
620 | else if (is_ab8505(ab8500)) |
621 | num_irqs = AB8505_NR_IRQS; | |
d6255529 LW |
622 | else |
623 | num_irqs = AB8500_NR_IRQS; | |
62579266 | 624 | |
f1d11f39 LW |
625 | /* If ->irq_base is zero this will give a linear mapping */ |
626 | ab8500->domain = irq_domain_add_simple(NULL, | |
627 | num_irqs, ab8500->irq_base, | |
628 | &ab8500_irq_ops, ab8500); | |
06e589ef LJ |
629 | |
630 | if (!ab8500->domain) { | |
631 | dev_err(ab8500->dev, "Failed to create irqdomain\n"); | |
632 | return -ENOSYS; | |
633 | } | |
634 | ||
635 | return 0; | |
62579266 RV |
636 | } |
637 | ||
112a80d2 JA |
638 | int ab8500_suspend(struct ab8500 *ab8500) |
639 | { | |
640 | if (atomic_read(&ab8500->transfer_ongoing)) | |
641 | return -EINVAL; | |
642 | else | |
643 | return 0; | |
644 | } | |
645 | ||
a9e9ce4c | 646 | static struct resource ab8500_gpadc_resources[] = { |
62579266 RV |
647 | { |
648 | .name = "HW_CONV_END", | |
649 | .start = AB8500_INT_GP_HW_ADC_CONV_END, | |
650 | .end = AB8500_INT_GP_HW_ADC_CONV_END, | |
651 | .flags = IORESOURCE_IRQ, | |
652 | }, | |
653 | { | |
654 | .name = "SW_CONV_END", | |
655 | .start = AB8500_INT_GP_SW_ADC_CONV_END, | |
656 | .end = AB8500_INT_GP_SW_ADC_CONV_END, | |
657 | .flags = IORESOURCE_IRQ, | |
658 | }, | |
659 | }; | |
660 | ||
4b106fb9 | 661 | static struct resource ab8505_gpadc_resources[] = { |
c0eda9ae LJ |
662 | { |
663 | .name = "SW_CONV_END", | |
664 | .start = AB8500_INT_GP_SW_ADC_CONV_END, | |
665 | .end = AB8500_INT_GP_SW_ADC_CONV_END, | |
666 | .flags = IORESOURCE_IRQ, | |
667 | }, | |
668 | }; | |
669 | ||
a9e9ce4c | 670 | static struct resource ab8500_rtc_resources[] = { |
62579266 RV |
671 | { |
672 | .name = "60S", | |
673 | .start = AB8500_INT_RTC_60S, | |
674 | .end = AB8500_INT_RTC_60S, | |
675 | .flags = IORESOURCE_IRQ, | |
676 | }, | |
677 | { | |
678 | .name = "ALARM", | |
679 | .start = AB8500_INT_RTC_ALARM, | |
680 | .end = AB8500_INT_RTC_ALARM, | |
681 | .flags = IORESOURCE_IRQ, | |
682 | }, | |
683 | }; | |
684 | ||
a9e9ce4c | 685 | static struct resource ab8500_poweronkey_db_resources[] = { |
77686517 SI |
686 | { |
687 | .name = "ONKEY_DBF", | |
688 | .start = AB8500_INT_PON_KEY1DB_F, | |
689 | .end = AB8500_INT_PON_KEY1DB_F, | |
690 | .flags = IORESOURCE_IRQ, | |
691 | }, | |
692 | { | |
693 | .name = "ONKEY_DBR", | |
694 | .start = AB8500_INT_PON_KEY1DB_R, | |
695 | .end = AB8500_INT_PON_KEY1DB_R, | |
696 | .flags = IORESOURCE_IRQ, | |
697 | }, | |
698 | }; | |
699 | ||
a9e9ce4c | 700 | static struct resource ab8500_av_acc_detect_resources[] = { |
e098aded | 701 | { |
6af75ecd LW |
702 | .name = "ACC_DETECT_1DB_F", |
703 | .start = AB8500_INT_ACC_DETECT_1DB_F, | |
704 | .end = AB8500_INT_ACC_DETECT_1DB_F, | |
705 | .flags = IORESOURCE_IRQ, | |
e098aded MW |
706 | }, |
707 | { | |
6af75ecd LW |
708 | .name = "ACC_DETECT_1DB_R", |
709 | .start = AB8500_INT_ACC_DETECT_1DB_R, | |
710 | .end = AB8500_INT_ACC_DETECT_1DB_R, | |
711 | .flags = IORESOURCE_IRQ, | |
712 | }, | |
713 | { | |
714 | .name = "ACC_DETECT_21DB_F", | |
715 | .start = AB8500_INT_ACC_DETECT_21DB_F, | |
716 | .end = AB8500_INT_ACC_DETECT_21DB_F, | |
717 | .flags = IORESOURCE_IRQ, | |
718 | }, | |
719 | { | |
720 | .name = "ACC_DETECT_21DB_R", | |
721 | .start = AB8500_INT_ACC_DETECT_21DB_R, | |
722 | .end = AB8500_INT_ACC_DETECT_21DB_R, | |
723 | .flags = IORESOURCE_IRQ, | |
724 | }, | |
725 | { | |
726 | .name = "ACC_DETECT_22DB_F", | |
727 | .start = AB8500_INT_ACC_DETECT_22DB_F, | |
728 | .end = AB8500_INT_ACC_DETECT_22DB_F, | |
729 | .flags = IORESOURCE_IRQ, | |
e098aded | 730 | }, |
6af75ecd LW |
731 | { |
732 | .name = "ACC_DETECT_22DB_R", | |
733 | .start = AB8500_INT_ACC_DETECT_22DB_R, | |
734 | .end = AB8500_INT_ACC_DETECT_22DB_R, | |
735 | .flags = IORESOURCE_IRQ, | |
736 | }, | |
737 | }; | |
738 | ||
a9e9ce4c | 739 | static struct resource ab8500_charger_resources[] = { |
e098aded MW |
740 | { |
741 | .name = "MAIN_CH_UNPLUG_DET", | |
742 | .start = AB8500_INT_MAIN_CH_UNPLUG_DET, | |
743 | .end = AB8500_INT_MAIN_CH_UNPLUG_DET, | |
744 | .flags = IORESOURCE_IRQ, | |
745 | }, | |
746 | { | |
747 | .name = "MAIN_CHARGE_PLUG_DET", | |
748 | .start = AB8500_INT_MAIN_CH_PLUG_DET, | |
749 | .end = AB8500_INT_MAIN_CH_PLUG_DET, | |
750 | .flags = IORESOURCE_IRQ, | |
751 | }, | |
e098aded MW |
752 | { |
753 | .name = "VBUS_DET_R", | |
754 | .start = AB8500_INT_VBUS_DET_R, | |
755 | .end = AB8500_INT_VBUS_DET_R, | |
756 | .flags = IORESOURCE_IRQ, | |
757 | }, | |
758 | { | |
6af75ecd LW |
759 | .name = "VBUS_DET_F", |
760 | .start = AB8500_INT_VBUS_DET_F, | |
761 | .end = AB8500_INT_VBUS_DET_F, | |
e098aded MW |
762 | .flags = IORESOURCE_IRQ, |
763 | }, | |
764 | { | |
6af75ecd LW |
765 | .name = "USB_LINK_STATUS", |
766 | .start = AB8500_INT_USB_LINK_STATUS, | |
767 | .end = AB8500_INT_USB_LINK_STATUS, | |
768 | .flags = IORESOURCE_IRQ, | |
769 | }, | |
e098aded MW |
770 | { |
771 | .name = "VBUS_OVV", | |
772 | .start = AB8500_INT_VBUS_OVV, | |
773 | .end = AB8500_INT_VBUS_OVV, | |
774 | .flags = IORESOURCE_IRQ, | |
775 | }, | |
776 | { | |
6af75ecd LW |
777 | .name = "USB_CH_TH_PROT_R", |
778 | .start = AB8500_INT_USB_CH_TH_PROT_R, | |
779 | .end = AB8500_INT_USB_CH_TH_PROT_R, | |
e098aded MW |
780 | .flags = IORESOURCE_IRQ, |
781 | }, | |
782 | { | |
6af75ecd LW |
783 | .name = "USB_CH_TH_PROT_F", |
784 | .start = AB8500_INT_USB_CH_TH_PROT_F, | |
785 | .end = AB8500_INT_USB_CH_TH_PROT_F, | |
e098aded MW |
786 | .flags = IORESOURCE_IRQ, |
787 | }, | |
788 | { | |
6af75ecd LW |
789 | .name = "MAIN_EXT_CH_NOT_OK", |
790 | .start = AB8500_INT_MAIN_EXT_CH_NOT_OK, | |
791 | .end = AB8500_INT_MAIN_EXT_CH_NOT_OK, | |
792 | .flags = IORESOURCE_IRQ, | |
793 | }, | |
794 | { | |
795 | .name = "MAIN_CH_TH_PROT_R", | |
796 | .start = AB8500_INT_MAIN_CH_TH_PROT_R, | |
797 | .end = AB8500_INT_MAIN_CH_TH_PROT_R, | |
798 | .flags = IORESOURCE_IRQ, | |
799 | }, | |
800 | { | |
801 | .name = "MAIN_CH_TH_PROT_F", | |
802 | .start = AB8500_INT_MAIN_CH_TH_PROT_F, | |
803 | .end = AB8500_INT_MAIN_CH_TH_PROT_F, | |
804 | .flags = IORESOURCE_IRQ, | |
805 | }, | |
806 | { | |
807 | .name = "USB_CHARGER_NOT_OKR", | |
a982362c BJ |
808 | .start = AB8500_INT_USB_CHARGER_NOT_OKR, |
809 | .end = AB8500_INT_USB_CHARGER_NOT_OKR, | |
6af75ecd LW |
810 | .flags = IORESOURCE_IRQ, |
811 | }, | |
812 | { | |
813 | .name = "CH_WD_EXP", | |
814 | .start = AB8500_INT_CH_WD_EXP, | |
815 | .end = AB8500_INT_CH_WD_EXP, | |
816 | .flags = IORESOURCE_IRQ, | |
817 | }, | |
34c11a70 POH |
818 | { |
819 | .name = "VBUS_CH_DROP_END", | |
820 | .start = AB8500_INT_VBUS_CH_DROP_END, | |
821 | .end = AB8500_INT_VBUS_CH_DROP_END, | |
822 | .flags = IORESOURCE_IRQ, | |
823 | }, | |
6af75ecd LW |
824 | }; |
825 | ||
a9e9ce4c | 826 | static struct resource ab8500_btemp_resources[] = { |
6af75ecd LW |
827 | { |
828 | .name = "BAT_CTRL_INDB", | |
829 | .start = AB8500_INT_BAT_CTRL_INDB, | |
830 | .end = AB8500_INT_BAT_CTRL_INDB, | |
e098aded MW |
831 | .flags = IORESOURCE_IRQ, |
832 | }, | |
833 | { | |
834 | .name = "BTEMP_LOW", | |
835 | .start = AB8500_INT_BTEMP_LOW, | |
836 | .end = AB8500_INT_BTEMP_LOW, | |
837 | .flags = IORESOURCE_IRQ, | |
838 | }, | |
839 | { | |
840 | .name = "BTEMP_HIGH", | |
841 | .start = AB8500_INT_BTEMP_HIGH, | |
842 | .end = AB8500_INT_BTEMP_HIGH, | |
843 | .flags = IORESOURCE_IRQ, | |
844 | }, | |
845 | { | |
6af75ecd LW |
846 | .name = "BTEMP_LOW_MEDIUM", |
847 | .start = AB8500_INT_BTEMP_LOW_MEDIUM, | |
848 | .end = AB8500_INT_BTEMP_LOW_MEDIUM, | |
e098aded MW |
849 | .flags = IORESOURCE_IRQ, |
850 | }, | |
851 | { | |
6af75ecd LW |
852 | .name = "BTEMP_MEDIUM_HIGH", |
853 | .start = AB8500_INT_BTEMP_MEDIUM_HIGH, | |
854 | .end = AB8500_INT_BTEMP_MEDIUM_HIGH, | |
e098aded MW |
855 | .flags = IORESOURCE_IRQ, |
856 | }, | |
6af75ecd LW |
857 | }; |
858 | ||
a9e9ce4c | 859 | static struct resource ab8500_fg_resources[] = { |
e098aded | 860 | { |
6af75ecd LW |
861 | .name = "NCONV_ACCU", |
862 | .start = AB8500_INT_CCN_CONV_ACC, | |
863 | .end = AB8500_INT_CCN_CONV_ACC, | |
e098aded MW |
864 | .flags = IORESOURCE_IRQ, |
865 | }, | |
866 | { | |
6af75ecd LW |
867 | .name = "BATT_OVV", |
868 | .start = AB8500_INT_BATT_OVV, | |
869 | .end = AB8500_INT_BATT_OVV, | |
e098aded MW |
870 | .flags = IORESOURCE_IRQ, |
871 | }, | |
872 | { | |
6af75ecd LW |
873 | .name = "LOW_BAT_F", |
874 | .start = AB8500_INT_LOW_BAT_F, | |
875 | .end = AB8500_INT_LOW_BAT_F, | |
876 | .flags = IORESOURCE_IRQ, | |
877 | }, | |
878 | { | |
879 | .name = "LOW_BAT_R", | |
880 | .start = AB8500_INT_LOW_BAT_R, | |
881 | .end = AB8500_INT_LOW_BAT_R, | |
882 | .flags = IORESOURCE_IRQ, | |
883 | }, | |
884 | { | |
885 | .name = "CC_INT_CALIB", | |
886 | .start = AB8500_INT_CC_INT_CALIB, | |
887 | .end = AB8500_INT_CC_INT_CALIB, | |
e098aded MW |
888 | .flags = IORESOURCE_IRQ, |
889 | }, | |
a982362c BJ |
890 | { |
891 | .name = "CCEOC", | |
892 | .start = AB8500_INT_CCEOC, | |
893 | .end = AB8500_INT_CCEOC, | |
894 | .flags = IORESOURCE_IRQ, | |
895 | }, | |
e098aded MW |
896 | }; |
897 | ||
a9e9ce4c | 898 | static struct resource ab8500_chargalg_resources[] = {}; |
6af75ecd | 899 | |
df720647 | 900 | #ifdef CONFIG_DEBUG_FS |
a9e9ce4c | 901 | static struct resource ab8500_debug_resources[] = { |
e098aded MW |
902 | { |
903 | .name = "IRQ_FIRST", | |
904 | .start = AB8500_INT_MAIN_EXT_CH_NOT_OK, | |
905 | .end = AB8500_INT_MAIN_EXT_CH_NOT_OK, | |
906 | .flags = IORESOURCE_IRQ, | |
907 | }, | |
908 | { | |
909 | .name = "IRQ_LAST", | |
a982362c BJ |
910 | .start = AB8500_INT_XTAL32K_KO, |
911 | .end = AB8500_INT_XTAL32K_KO, | |
e098aded MW |
912 | .flags = IORESOURCE_IRQ, |
913 | }, | |
914 | }; | |
df720647 | 915 | #endif |
e098aded | 916 | |
a9e9ce4c | 917 | static struct resource ab8500_usb_resources[] = { |
e098aded MW |
918 | { |
919 | .name = "ID_WAKEUP_R", | |
920 | .start = AB8500_INT_ID_WAKEUP_R, | |
921 | .end = AB8500_INT_ID_WAKEUP_R, | |
922 | .flags = IORESOURCE_IRQ, | |
923 | }, | |
924 | { | |
925 | .name = "ID_WAKEUP_F", | |
926 | .start = AB8500_INT_ID_WAKEUP_F, | |
927 | .end = AB8500_INT_ID_WAKEUP_F, | |
928 | .flags = IORESOURCE_IRQ, | |
929 | }, | |
930 | { | |
931 | .name = "VBUS_DET_F", | |
932 | .start = AB8500_INT_VBUS_DET_F, | |
933 | .end = AB8500_INT_VBUS_DET_F, | |
934 | .flags = IORESOURCE_IRQ, | |
935 | }, | |
936 | { | |
937 | .name = "VBUS_DET_R", | |
938 | .start = AB8500_INT_VBUS_DET_R, | |
939 | .end = AB8500_INT_VBUS_DET_R, | |
940 | .flags = IORESOURCE_IRQ, | |
941 | }, | |
92d50a41 MW |
942 | { |
943 | .name = "USB_LINK_STATUS", | |
944 | .start = AB8500_INT_USB_LINK_STATUS, | |
945 | .end = AB8500_INT_USB_LINK_STATUS, | |
946 | .flags = IORESOURCE_IRQ, | |
947 | }, | |
6af75ecd LW |
948 | { |
949 | .name = "USB_ADP_PROBE_PLUG", | |
950 | .start = AB8500_INT_ADP_PROBE_PLUG, | |
951 | .end = AB8500_INT_ADP_PROBE_PLUG, | |
952 | .flags = IORESOURCE_IRQ, | |
953 | }, | |
954 | { | |
955 | .name = "USB_ADP_PROBE_UNPLUG", | |
956 | .start = AB8500_INT_ADP_PROBE_UNPLUG, | |
957 | .end = AB8500_INT_ADP_PROBE_UNPLUG, | |
958 | .flags = IORESOURCE_IRQ, | |
959 | }, | |
e098aded MW |
960 | }; |
961 | ||
a9e9ce4c | 962 | static struct resource ab8505_iddet_resources[] = { |
44f72e53 VS |
963 | { |
964 | .name = "KeyDeglitch", | |
965 | .start = AB8505_INT_KEYDEGLITCH, | |
966 | .end = AB8505_INT_KEYDEGLITCH, | |
967 | .flags = IORESOURCE_IRQ, | |
968 | }, | |
969 | { | |
970 | .name = "KP", | |
971 | .start = AB8505_INT_KP, | |
972 | .end = AB8505_INT_KP, | |
973 | .flags = IORESOURCE_IRQ, | |
974 | }, | |
975 | { | |
976 | .name = "IKP", | |
977 | .start = AB8505_INT_IKP, | |
978 | .end = AB8505_INT_IKP, | |
979 | .flags = IORESOURCE_IRQ, | |
980 | }, | |
981 | { | |
982 | .name = "IKR", | |
983 | .start = AB8505_INT_IKR, | |
984 | .end = AB8505_INT_IKR, | |
985 | .flags = IORESOURCE_IRQ, | |
986 | }, | |
987 | { | |
988 | .name = "KeyStuck", | |
989 | .start = AB8505_INT_KEYSTUCK, | |
990 | .end = AB8505_INT_KEYSTUCK, | |
991 | .flags = IORESOURCE_IRQ, | |
992 | }, | |
993 | }; | |
994 | ||
a9e9ce4c | 995 | static struct resource ab8500_temp_resources[] = { |
e098aded | 996 | { |
151621a7 | 997 | .name = "ABX500_TEMP_WARM", |
e098aded MW |
998 | .start = AB8500_INT_TEMP_WARM, |
999 | .end = AB8500_INT_TEMP_WARM, | |
1000 | .flags = IORESOURCE_IRQ, | |
1001 | }, | |
1002 | }; | |
1003 | ||
4b106fb9 LJ |
1004 | static struct mfd_cell ab8500_bm_devs[] = { |
1005 | { | |
1006 | .name = "ab8500-charger", | |
1007 | .of_compatible = "stericsson,ab8500-charger", | |
1008 | .num_resources = ARRAY_SIZE(ab8500_charger_resources), | |
1009 | .resources = ab8500_charger_resources, | |
1010 | .platform_data = &ab8500_bm_data, | |
1011 | .pdata_size = sizeof(ab8500_bm_data), | |
1012 | }, | |
1013 | { | |
1014 | .name = "ab8500-btemp", | |
1015 | .of_compatible = "stericsson,ab8500-btemp", | |
1016 | .num_resources = ARRAY_SIZE(ab8500_btemp_resources), | |
1017 | .resources = ab8500_btemp_resources, | |
1018 | .platform_data = &ab8500_bm_data, | |
1019 | .pdata_size = sizeof(ab8500_bm_data), | |
1020 | }, | |
1021 | { | |
1022 | .name = "ab8500-fg", | |
1023 | .of_compatible = "stericsson,ab8500-fg", | |
1024 | .num_resources = ARRAY_SIZE(ab8500_fg_resources), | |
1025 | .resources = ab8500_fg_resources, | |
1026 | .platform_data = &ab8500_bm_data, | |
1027 | .pdata_size = sizeof(ab8500_bm_data), | |
1028 | }, | |
1029 | { | |
1030 | .name = "ab8500-chargalg", | |
1031 | .of_compatible = "stericsson,ab8500-chargalg", | |
1032 | .num_resources = ARRAY_SIZE(ab8500_chargalg_resources), | |
1033 | .resources = ab8500_chargalg_resources, | |
1034 | .platform_data = &ab8500_bm_data, | |
1035 | .pdata_size = sizeof(ab8500_bm_data), | |
1036 | }, | |
1037 | }; | |
1038 | ||
1039 | static struct mfd_cell ab8500_devs[] = { | |
5814fc35 MW |
1040 | #ifdef CONFIG_DEBUG_FS |
1041 | { | |
1042 | .name = "ab8500-debug", | |
bad76991 | 1043 | .of_compatible = "stericsson,ab8500-debug", |
e098aded MW |
1044 | .num_resources = ARRAY_SIZE(ab8500_debug_resources), |
1045 | .resources = ab8500_debug_resources, | |
5814fc35 MW |
1046 | }, |
1047 | #endif | |
e098aded MW |
1048 | { |
1049 | .name = "ab8500-sysctrl", | |
bad76991 | 1050 | .of_compatible = "stericsson,ab8500-sysctrl", |
e098aded MW |
1051 | }, |
1052 | { | |
1053 | .name = "ab8500-regulator", | |
bad76991 | 1054 | .of_compatible = "stericsson,ab8500-regulator", |
e098aded | 1055 | }, |
916a871c UH |
1056 | { |
1057 | .name = "abx500-clk", | |
1058 | .of_compatible = "stericsson,abx500-clk", | |
1059 | }, | |
4b106fb9 LJ |
1060 | { |
1061 | .name = "ab8500-gpadc", | |
1062 | .num_resources = ARRAY_SIZE(ab8500_gpadc_resources), | |
1063 | .resources = ab8500_gpadc_resources, | |
1064 | }, | |
62579266 RV |
1065 | { |
1066 | .name = "ab8500-rtc", | |
bad76991 | 1067 | .of_compatible = "stericsson,ab8500-rtc", |
62579266 RV |
1068 | .num_resources = ARRAY_SIZE(ab8500_rtc_resources), |
1069 | .resources = ab8500_rtc_resources, | |
1070 | }, | |
6af75ecd LW |
1071 | { |
1072 | .name = "ab8500-acc-det", | |
bad76991 | 1073 | .of_compatible = "stericsson,ab8500-acc-det", |
6af75ecd LW |
1074 | .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources), |
1075 | .resources = ab8500_av_acc_detect_resources, | |
1076 | }, | |
e098aded | 1077 | { |
4b106fb9 | 1078 | |
e098aded | 1079 | .name = "ab8500-poweron-key", |
bad76991 | 1080 | .of_compatible = "stericsson,ab8500-poweron-key", |
e098aded MW |
1081 | .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), |
1082 | .resources = ab8500_poweronkey_db_resources, | |
1083 | }, | |
f0f05b1c AM |
1084 | { |
1085 | .name = "ab8500-pwm", | |
bad76991 | 1086 | .of_compatible = "stericsson,ab8500-pwm", |
f0f05b1c AM |
1087 | .id = 1, |
1088 | }, | |
1089 | { | |
1090 | .name = "ab8500-pwm", | |
bad76991 | 1091 | .of_compatible = "stericsson,ab8500-pwm", |
f0f05b1c AM |
1092 | .id = 2, |
1093 | }, | |
1094 | { | |
1095 | .name = "ab8500-pwm", | |
bad76991 | 1096 | .of_compatible = "stericsson,ab8500-pwm", |
f0f05b1c AM |
1097 | .id = 3, |
1098 | }, | |
bad76991 LJ |
1099 | { |
1100 | .name = "ab8500-leds", | |
1101 | .of_compatible = "stericsson,ab8500-leds", | |
1102 | }, | |
77686517 | 1103 | { |
e098aded | 1104 | .name = "ab8500-denc", |
bad76991 | 1105 | .of_compatible = "stericsson,ab8500-denc", |
e098aded | 1106 | }, |
4b106fb9 LJ |
1107 | { |
1108 | .name = "ab8500-gpio", | |
1109 | .of_compatible = "stericsson,ab8500-gpio", | |
1110 | }, | |
e098aded | 1111 | { |
151621a7 HZ |
1112 | .name = "abx500-temp", |
1113 | .of_compatible = "stericsson,abx500-temp", | |
e098aded MW |
1114 | .num_resources = ARRAY_SIZE(ab8500_temp_resources), |
1115 | .resources = ab8500_temp_resources, | |
77686517 | 1116 | }, |
6ef9418c | 1117 | { |
4b106fb9 LJ |
1118 | .name = "ab8500-usb", |
1119 | .num_resources = ARRAY_SIZE(ab8500_usb_resources), | |
1120 | .resources = ab8500_usb_resources, | |
6ef9418c RA |
1121 | }, |
1122 | { | |
4b106fb9 | 1123 | .name = "ab8500-codec", |
6ef9418c RA |
1124 | }, |
1125 | }; | |
1126 | ||
4b106fb9 LJ |
1127 | static struct mfd_cell ab9540_devs[] = { |
1128 | #ifdef CONFIG_DEBUG_FS | |
d6255529 | 1129 | { |
4b106fb9 LJ |
1130 | .name = "ab8500-debug", |
1131 | .num_resources = ARRAY_SIZE(ab8500_debug_resources), | |
1132 | .resources = ab8500_debug_resources, | |
d6255529 | 1133 | }, |
4b106fb9 | 1134 | #endif |
d6255529 | 1135 | { |
4b106fb9 | 1136 | .name = "ab8500-sysctrl", |
d6255529 | 1137 | }, |
44f72e53 | 1138 | { |
4b106fb9 | 1139 | .name = "ab8500-regulator", |
44f72e53 | 1140 | }, |
c0eda9ae LJ |
1141 | { |
1142 | .name = "ab8500-gpadc", | |
1143 | .of_compatible = "stericsson,ab8500-gpadc", | |
1144 | .num_resources = ARRAY_SIZE(ab8500_gpadc_resources), | |
1145 | .resources = ab8500_gpadc_resources, | |
1146 | }, | |
4b106fb9 LJ |
1147 | { |
1148 | .name = "ab8500-rtc", | |
1149 | .num_resources = ARRAY_SIZE(ab8500_rtc_resources), | |
1150 | .resources = ab8500_rtc_resources, | |
1151 | }, | |
1152 | { | |
1153 | .name = "ab8500-acc-det", | |
1154 | .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources), | |
1155 | .resources = ab8500_av_acc_detect_resources, | |
1156 | }, | |
1157 | { | |
1158 | .name = "ab8500-poweron-key", | |
1159 | .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), | |
1160 | .resources = ab8500_poweronkey_db_resources, | |
1161 | }, | |
1162 | { | |
1163 | .name = "ab8500-pwm", | |
1164 | .id = 1, | |
1165 | }, | |
1166 | { | |
1167 | .name = "ab8500-leds", | |
1168 | }, | |
1169 | { | |
1170 | .name = "abx500-temp", | |
1171 | .num_resources = ARRAY_SIZE(ab8500_temp_resources), | |
1172 | .resources = ab8500_temp_resources, | |
1173 | }, | |
d6255529 | 1174 | { |
e64d905e LJ |
1175 | .name = "pinctrl-ab9540", |
1176 | .of_compatible = "stericsson,ab9540-gpio", | |
d6255529 LW |
1177 | }, |
1178 | { | |
1179 | .name = "ab9540-usb", | |
1180 | .num_resources = ARRAY_SIZE(ab8500_usb_resources), | |
1181 | .resources = ab8500_usb_resources, | |
1182 | }, | |
44f72e53 VS |
1183 | { |
1184 | .name = "ab9540-codec", | |
1185 | }, | |
c0eda9ae LJ |
1186 | { |
1187 | .name = "ab-iddet", | |
1188 | .num_resources = ARRAY_SIZE(ab8505_iddet_resources), | |
1189 | .resources = ab8505_iddet_resources, | |
1190 | }, | |
44f72e53 VS |
1191 | }; |
1192 | ||
c0eda9ae LJ |
1193 | /* Device list for ab8505 */ |
1194 | static struct mfd_cell ab8505_devs[] = { | |
4b106fb9 LJ |
1195 | #ifdef CONFIG_DEBUG_FS |
1196 | { | |
1197 | .name = "ab8500-debug", | |
1198 | .num_resources = ARRAY_SIZE(ab8500_debug_resources), | |
1199 | .resources = ab8500_debug_resources, | |
1200 | }, | |
1201 | #endif | |
1202 | { | |
1203 | .name = "ab8500-sysctrl", | |
1204 | }, | |
1205 | { | |
1206 | .name = "ab8500-regulator", | |
1207 | }, | |
1208 | { | |
1209 | .name = "ab8500-gpadc", | |
1210 | .num_resources = ARRAY_SIZE(ab8505_gpadc_resources), | |
1211 | .resources = ab8505_gpadc_resources, | |
1212 | }, | |
1213 | { | |
1214 | .name = "ab8500-rtc", | |
1215 | .num_resources = ARRAY_SIZE(ab8500_rtc_resources), | |
1216 | .resources = ab8500_rtc_resources, | |
1217 | }, | |
1218 | { | |
1219 | .name = "ab8500-acc-det", | |
1220 | .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources), | |
1221 | .resources = ab8500_av_acc_detect_resources, | |
1222 | }, | |
1223 | { | |
1224 | .name = "ab8500-poweron-key", | |
1225 | .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), | |
1226 | .resources = ab8500_poweronkey_db_resources, | |
1227 | }, | |
1228 | { | |
1229 | .name = "ab8500-pwm", | |
1230 | .id = 1, | |
1231 | }, | |
1232 | { | |
1233 | .name = "ab8500-leds", | |
1234 | }, | |
1235 | { | |
1236 | .name = "ab8500-gpio", | |
1237 | }, | |
1238 | { | |
1239 | .name = "ab8500-usb", | |
1240 | .num_resources = ARRAY_SIZE(ab8500_usb_resources), | |
1241 | .resources = ab8500_usb_resources, | |
1242 | }, | |
1243 | { | |
1244 | .name = "ab8500-codec", | |
1245 | }, | |
c0eda9ae LJ |
1246 | { |
1247 | .name = "ab-iddet", | |
1248 | .num_resources = ARRAY_SIZE(ab8505_iddet_resources), | |
1249 | .resources = ab8505_iddet_resources, | |
1250 | }, | |
1251 | }; | |
1252 | ||
1253 | static struct mfd_cell ab8540_devs[] = { | |
4b106fb9 LJ |
1254 | #ifdef CONFIG_DEBUG_FS |
1255 | { | |
1256 | .name = "ab8500-debug", | |
1257 | .num_resources = ARRAY_SIZE(ab8500_debug_resources), | |
1258 | .resources = ab8500_debug_resources, | |
1259 | }, | |
1260 | #endif | |
1261 | { | |
1262 | .name = "ab8500-sysctrl", | |
1263 | }, | |
1264 | { | |
1265 | .name = "ab8500-regulator", | |
1266 | }, | |
1267 | { | |
1268 | .name = "ab8500-gpadc", | |
1269 | .num_resources = ARRAY_SIZE(ab8505_gpadc_resources), | |
1270 | .resources = ab8505_gpadc_resources, | |
1271 | }, | |
1272 | { | |
1273 | .name = "ab8500-rtc", | |
1274 | .num_resources = ARRAY_SIZE(ab8500_rtc_resources), | |
1275 | .resources = ab8500_rtc_resources, | |
1276 | }, | |
1277 | { | |
1278 | .name = "ab8500-acc-det", | |
1279 | .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources), | |
1280 | .resources = ab8500_av_acc_detect_resources, | |
1281 | }, | |
1282 | { | |
1283 | .name = "ab8500-poweron-key", | |
1284 | .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources), | |
1285 | .resources = ab8500_poweronkey_db_resources, | |
1286 | }, | |
1287 | { | |
1288 | .name = "ab8500-pwm", | |
1289 | .id = 1, | |
1290 | }, | |
1291 | { | |
1292 | .name = "ab8500-leds", | |
1293 | }, | |
1294 | { | |
1295 | .name = "abx500-temp", | |
1296 | .num_resources = ARRAY_SIZE(ab8500_temp_resources), | |
1297 | .resources = ab8500_temp_resources, | |
1298 | }, | |
c0eda9ae LJ |
1299 | { |
1300 | .name = "ab8500-gpio", | |
1301 | }, | |
1302 | { | |
1303 | .name = "ab8540-usb", | |
1304 | .num_resources = ARRAY_SIZE(ab8500_usb_resources), | |
1305 | .resources = ab8500_usb_resources, | |
1306 | }, | |
1307 | { | |
1308 | .name = "ab8540-codec", | |
1309 | }, | |
44f72e53 VS |
1310 | { |
1311 | .name = "ab-iddet", | |
1312 | .num_resources = ARRAY_SIZE(ab8505_iddet_resources), | |
1313 | .resources = ab8505_iddet_resources, | |
1314 | }, | |
d6255529 LW |
1315 | }; |
1316 | ||
cca69b67 MW |
1317 | static ssize_t show_chip_id(struct device *dev, |
1318 | struct device_attribute *attr, char *buf) | |
1319 | { | |
1320 | struct ab8500 *ab8500; | |
1321 | ||
1322 | ab8500 = dev_get_drvdata(dev); | |
1323 | return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL); | |
1324 | } | |
1325 | ||
e5c238c3 MW |
1326 | /* |
1327 | * ab8500 has switched off due to (SWITCH_OFF_STATUS): | |
1328 | * 0x01 Swoff bit programming | |
1329 | * 0x02 Thermal protection activation | |
1330 | * 0x04 Vbat lower then BattOk falling threshold | |
1331 | * 0x08 Watchdog expired | |
1332 | * 0x10 Non presence of 32kHz clock | |
1333 | * 0x20 Battery level lower than power on reset threshold | |
1334 | * 0x40 Power on key 1 pressed longer than 10 seconds | |
1335 | * 0x80 DB8500 thermal shutdown | |
1336 | */ | |
1337 | static ssize_t show_switch_off_status(struct device *dev, | |
1338 | struct device_attribute *attr, char *buf) | |
1339 | { | |
1340 | int ret; | |
1341 | u8 value; | |
1342 | struct ab8500 *ab8500; | |
1343 | ||
1344 | ab8500 = dev_get_drvdata(dev); | |
1345 | ret = get_register_interruptible(ab8500, AB8500_RTC, | |
1346 | AB8500_SWITCH_OFF_STATUS, &value); | |
1347 | if (ret < 0) | |
1348 | return ret; | |
1349 | return sprintf(buf, "%#x\n", value); | |
1350 | } | |
1351 | ||
f04a9d8a RK |
1352 | /* use mask and set to override the register turn_on_stat value */ |
1353 | void ab8500_override_turn_on_stat(u8 mask, u8 set) | |
1354 | { | |
1355 | spin_lock(&on_stat_lock); | |
1356 | turn_on_stat_mask = mask; | |
1357 | turn_on_stat_set = set; | |
1358 | spin_unlock(&on_stat_lock); | |
1359 | } | |
1360 | ||
b4a31037 AL |
1361 | /* |
1362 | * ab8500 has turned on due to (TURN_ON_STATUS): | |
1363 | * 0x01 PORnVbat | |
1364 | * 0x02 PonKey1dbF | |
1365 | * 0x04 PonKey2dbF | |
1366 | * 0x08 RTCAlarm | |
1367 | * 0x10 MainChDet | |
1368 | * 0x20 VbusDet | |
1369 | * 0x40 UsbIDDetect | |
1370 | * 0x80 Reserved | |
1371 | */ | |
1372 | static ssize_t show_turn_on_status(struct device *dev, | |
1373 | struct device_attribute *attr, char *buf) | |
1374 | { | |
1375 | int ret; | |
1376 | u8 value; | |
1377 | struct ab8500 *ab8500; | |
1378 | ||
1379 | ab8500 = dev_get_drvdata(dev); | |
1380 | ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK, | |
1381 | AB8500_TURN_ON_STATUS, &value); | |
1382 | if (ret < 0) | |
1383 | return ret; | |
f04a9d8a RK |
1384 | |
1385 | /* | |
1386 | * In L9540, turn_on_status register is not updated correctly if | |
1387 | * the device is rebooted with AC/USB charger connected. Due to | |
1388 | * this, the device boots android instead of entering into charge | |
1389 | * only mode. Read the AC/USB status register to detect the charger | |
1390 | * presence and update the turn on status manually. | |
1391 | */ | |
1392 | if (is_ab9540(ab8500)) { | |
1393 | spin_lock(&on_stat_lock); | |
1394 | value = (value & turn_on_stat_mask) | turn_on_stat_set; | |
1395 | spin_unlock(&on_stat_lock); | |
1396 | } | |
1397 | ||
b4a31037 AL |
1398 | return sprintf(buf, "%#x\n", value); |
1399 | } | |
1400 | ||
d6255529 LW |
1401 | static ssize_t show_ab9540_dbbrstn(struct device *dev, |
1402 | struct device_attribute *attr, char *buf) | |
1403 | { | |
1404 | struct ab8500 *ab8500; | |
1405 | int ret; | |
1406 | u8 value; | |
1407 | ||
1408 | ab8500 = dev_get_drvdata(dev); | |
1409 | ||
1410 | ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2, | |
1411 | AB9540_MODEM_CTRL2_REG, &value); | |
1412 | if (ret < 0) | |
1413 | return ret; | |
1414 | ||
1415 | return sprintf(buf, "%d\n", | |
1416 | (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0); | |
1417 | } | |
1418 | ||
1419 | static ssize_t store_ab9540_dbbrstn(struct device *dev, | |
1420 | struct device_attribute *attr, const char *buf, size_t count) | |
1421 | { | |
1422 | struct ab8500 *ab8500; | |
1423 | int ret = count; | |
1424 | int err; | |
1425 | u8 bitvalues; | |
1426 | ||
1427 | ab8500 = dev_get_drvdata(dev); | |
1428 | ||
1429 | if (count > 0) { | |
1430 | switch (buf[0]) { | |
1431 | case '0': | |
1432 | bitvalues = 0; | |
1433 | break; | |
1434 | case '1': | |
1435 | bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT; | |
1436 | break; | |
1437 | default: | |
1438 | goto exit; | |
1439 | } | |
1440 | ||
1441 | err = mask_and_set_register_interruptible(ab8500, | |
1442 | AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG, | |
1443 | AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues); | |
1444 | if (err) | |
1445 | dev_info(ab8500->dev, | |
1446 | "Failed to set DBBRSTN %c, err %#x\n", | |
1447 | buf[0], err); | |
1448 | } | |
1449 | ||
1450 | exit: | |
1451 | return ret; | |
1452 | } | |
1453 | ||
cca69b67 | 1454 | static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL); |
e5c238c3 | 1455 | static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL); |
b4a31037 | 1456 | static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL); |
d6255529 LW |
1457 | static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR, |
1458 | show_ab9540_dbbrstn, store_ab9540_dbbrstn); | |
cca69b67 MW |
1459 | |
1460 | static struct attribute *ab8500_sysfs_entries[] = { | |
1461 | &dev_attr_chip_id.attr, | |
e5c238c3 | 1462 | &dev_attr_switch_off_status.attr, |
b4a31037 | 1463 | &dev_attr_turn_on_status.attr, |
cca69b67 MW |
1464 | NULL, |
1465 | }; | |
1466 | ||
d6255529 LW |
1467 | static struct attribute *ab9540_sysfs_entries[] = { |
1468 | &dev_attr_chip_id.attr, | |
1469 | &dev_attr_switch_off_status.attr, | |
1470 | &dev_attr_turn_on_status.attr, | |
1471 | &dev_attr_dbbrstn.attr, | |
1472 | NULL, | |
1473 | }; | |
1474 | ||
cca69b67 MW |
1475 | static struct attribute_group ab8500_attr_group = { |
1476 | .attrs = ab8500_sysfs_entries, | |
1477 | }; | |
1478 | ||
d6255529 LW |
1479 | static struct attribute_group ab9540_attr_group = { |
1480 | .attrs = ab9540_sysfs_entries, | |
1481 | }; | |
1482 | ||
f791be49 | 1483 | static int ab8500_probe(struct platform_device *pdev) |
62579266 | 1484 | { |
b04c530c JA |
1485 | static char *switch_off_status[] = { |
1486 | "Swoff bit programming", | |
1487 | "Thermal protection activation", | |
1488 | "Vbat lower then BattOk falling threshold", | |
1489 | "Watchdog expired", | |
1490 | "Non presence of 32kHz clock", | |
1491 | "Battery level lower than power on reset threshold", | |
1492 | "Power on key 1 pressed longer than 10 seconds", | |
1493 | "DB8500 thermal shutdown"}; | |
d28f1db8 LJ |
1494 | struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev); |
1495 | const struct platform_device_id *platid = platform_get_device_id(pdev); | |
6bc4a568 LJ |
1496 | enum ab8500_version version = AB8500_VERSION_UNDEFINED; |
1497 | struct device_node *np = pdev->dev.of_node; | |
d28f1db8 LJ |
1498 | struct ab8500 *ab8500; |
1499 | struct resource *resource; | |
62579266 RV |
1500 | int ret; |
1501 | int i; | |
47c16975 | 1502 | u8 value; |
62579266 | 1503 | |
8c4203cb | 1504 | ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL); |
d28f1db8 LJ |
1505 | if (!ab8500) |
1506 | return -ENOMEM; | |
1507 | ||
62579266 RV |
1508 | if (plat) |
1509 | ab8500->irq_base = plat->irq_base; | |
1510 | ||
d28f1db8 LJ |
1511 | ab8500->dev = &pdev->dev; |
1512 | ||
1513 | resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0); | |
8c4203cb LJ |
1514 | if (!resource) |
1515 | return -ENODEV; | |
d28f1db8 LJ |
1516 | |
1517 | ab8500->irq = resource->start; | |
1518 | ||
822672a7 LJ |
1519 | ab8500->read = ab8500_prcmu_read; |
1520 | ab8500->write = ab8500_prcmu_write; | |
1521 | ab8500->write_masked = ab8500_prcmu_write_masked; | |
d28f1db8 | 1522 | |
62579266 RV |
1523 | mutex_init(&ab8500->lock); |
1524 | mutex_init(&ab8500->irq_lock); | |
112a80d2 | 1525 | atomic_set(&ab8500->transfer_ongoing, 0); |
62579266 | 1526 | |
d28f1db8 LJ |
1527 | platform_set_drvdata(pdev, ab8500); |
1528 | ||
6bc4a568 LJ |
1529 | if (platid) |
1530 | version = platid->driver_data; | |
6bc4a568 | 1531 | |
0f620837 LW |
1532 | if (version != AB8500_VERSION_UNDEFINED) |
1533 | ab8500->version = version; | |
1534 | else { | |
1535 | ret = get_register_interruptible(ab8500, AB8500_MISC, | |
1536 | AB8500_IC_NAME_REG, &value); | |
1537 | if (ret < 0) | |
8c4203cb | 1538 | return ret; |
0f620837 LW |
1539 | |
1540 | ab8500->version = value; | |
1541 | } | |
1542 | ||
47c16975 MW |
1543 | ret = get_register_interruptible(ab8500, AB8500_MISC, |
1544 | AB8500_REV_REG, &value); | |
62579266 | 1545 | if (ret < 0) |
8c4203cb | 1546 | return ret; |
62579266 | 1547 | |
47c16975 | 1548 | ab8500->chip_id = value; |
62579266 | 1549 | |
0f620837 LW |
1550 | dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n", |
1551 | ab8500_version_str[ab8500->version], | |
1552 | ab8500->chip_id >> 4, | |
1553 | ab8500->chip_id & 0x0F); | |
1554 | ||
d6255529 | 1555 | /* Configure AB8500 or AB9540 IRQ */ |
a982362c | 1556 | if (is_ab9540(ab8500) || is_ab8505(ab8500)) { |
d6255529 LW |
1557 | ab8500->mask_size = AB9540_NUM_IRQ_REGS; |
1558 | ab8500->irq_reg_offset = ab9540_irq_regoffset; | |
1559 | } else { | |
1560 | ab8500->mask_size = AB8500_NUM_IRQ_REGS; | |
1561 | ab8500->irq_reg_offset = ab8500_irq_regoffset; | |
1562 | } | |
8c4203cb | 1563 | ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); |
2ced445e LW |
1564 | if (!ab8500->mask) |
1565 | return -ENOMEM; | |
8c4203cb LJ |
1566 | ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL); |
1567 | if (!ab8500->oldmask) | |
1568 | return -ENOMEM; | |
1569 | ||
e5c238c3 MW |
1570 | /* |
1571 | * ab8500 has switched off due to (SWITCH_OFF_STATUS): | |
1572 | * 0x01 Swoff bit programming | |
1573 | * 0x02 Thermal protection activation | |
1574 | * 0x04 Vbat lower then BattOk falling threshold | |
1575 | * 0x08 Watchdog expired | |
1576 | * 0x10 Non presence of 32kHz clock | |
1577 | * 0x20 Battery level lower than power on reset threshold | |
1578 | * 0x40 Power on key 1 pressed longer than 10 seconds | |
1579 | * 0x80 DB8500 thermal shutdown | |
1580 | */ | |
1581 | ||
1582 | ret = get_register_interruptible(ab8500, AB8500_RTC, | |
1583 | AB8500_SWITCH_OFF_STATUS, &value); | |
1584 | if (ret < 0) | |
1585 | return ret; | |
b04c530c JA |
1586 | dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value); |
1587 | ||
1588 | if (value) { | |
1589 | for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) { | |
1590 | if (value & 1) | |
1591 | printk(KERN_CONT " \"%s\"", | |
1592 | switch_off_status[i]); | |
1593 | value = value >> 1; | |
1594 | ||
1595 | } | |
1596 | printk(KERN_CONT "\n"); | |
1597 | } else { | |
1598 | printk(KERN_CONT " None\n"); | |
1599 | } | |
e5c238c3 | 1600 | |
62579266 RV |
1601 | if (plat && plat->init) |
1602 | plat->init(ab8500); | |
f04a9d8a RK |
1603 | if (is_ab9540(ab8500)) { |
1604 | ret = get_register_interruptible(ab8500, AB8500_CHARGER, | |
1605 | AB8500_CH_USBCH_STAT1_REG, &value); | |
1606 | if (ret < 0) | |
1607 | return ret; | |
1608 | if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100)) | |
1609 | ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON, | |
1610 | AB8500_VBUS_DET); | |
1611 | } | |
62579266 RV |
1612 | |
1613 | /* Clear and mask all interrupts */ | |
2ced445e | 1614 | for (i = 0; i < ab8500->mask_size; i++) { |
0f620837 LW |
1615 | /* |
1616 | * Interrupt register 12 doesn't exist prior to AB8500 version | |
1617 | * 2.0 | |
1618 | */ | |
1619 | if (ab8500->irq_reg_offset[i] == 11 && | |
1620 | is_ab8500_1p1_or_earlier(ab8500)) | |
92d50a41 | 1621 | continue; |
62579266 | 1622 | |
47c16975 | 1623 | get_register_interruptible(ab8500, AB8500_INTERRUPT, |
2ced445e | 1624 | AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i], |
92d50a41 | 1625 | &value); |
47c16975 | 1626 | set_register_interruptible(ab8500, AB8500_INTERRUPT, |
2ced445e | 1627 | AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff); |
62579266 RV |
1628 | } |
1629 | ||
47c16975 MW |
1630 | ret = abx500_register_ops(ab8500->dev, &ab8500_ops); |
1631 | if (ret) | |
8c4203cb | 1632 | return ret; |
47c16975 | 1633 | |
2ced445e | 1634 | for (i = 0; i < ab8500->mask_size; i++) |
62579266 RV |
1635 | ab8500->mask[i] = ab8500->oldmask[i] = 0xff; |
1636 | ||
06e589ef LJ |
1637 | ret = ab8500_irq_init(ab8500, np); |
1638 | if (ret) | |
8c4203cb | 1639 | return ret; |
62579266 | 1640 | |
06e589ef LJ |
1641 | /* Activate this feature only in ab9540 */ |
1642 | /* till tests are done on ab8500 1p2 or later*/ | |
1643 | if (is_ab9540(ab8500)) { | |
8c4203cb LJ |
1644 | ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, |
1645 | ab8500_hierarchical_irq, | |
1646 | IRQF_ONESHOT | IRQF_NO_SUSPEND, | |
1647 | "ab8500", ab8500); | |
06e589ef LJ |
1648 | } |
1649 | else { | |
8c4203cb LJ |
1650 | ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL, |
1651 | ab8500_irq, | |
1652 | IRQF_ONESHOT | IRQF_NO_SUSPEND, | |
1653 | "ab8500", ab8500); | |
62579266 | 1654 | if (ret) |
8c4203cb | 1655 | return ret; |
62579266 RV |
1656 | } |
1657 | ||
bad76991 LJ |
1658 | if (is_ab9540(ab8500)) |
1659 | ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs, | |
1660 | ARRAY_SIZE(ab9540_devs), NULL, | |
55692af5 | 1661 | ab8500->irq_base, ab8500->domain); |
c0eda9ae LJ |
1662 | else if (is_ab8540(ab8500)) |
1663 | ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs, | |
1664 | ARRAY_SIZE(ab8540_devs), NULL, | |
1665 | ab8500->irq_base, ab8500->domain); | |
1666 | else if (is_ab8505(ab8500)) | |
1667 | ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs, | |
1668 | ARRAY_SIZE(ab8505_devs), NULL, | |
1669 | ab8500->irq_base, ab8500->domain); | |
bad76991 LJ |
1670 | else |
1671 | ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs, | |
1672 | ARRAY_SIZE(ab8500_devs), NULL, | |
55692af5 | 1673 | ab8500->irq_base, ab8500->domain); |
bad76991 | 1674 | if (ret) |
8c4203cb | 1675 | return ret; |
44f72e53 | 1676 | |
6ef9418c RA |
1677 | if (!no_bm) { |
1678 | /* Add battery management devices */ | |
1679 | ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs, | |
1680 | ARRAY_SIZE(ab8500_bm_devs), NULL, | |
55692af5 | 1681 | ab8500->irq_base, ab8500->domain); |
6ef9418c RA |
1682 | if (ret) |
1683 | dev_err(ab8500->dev, "error adding bm devices\n"); | |
1684 | } | |
1685 | ||
d6255529 LW |
1686 | if (is_ab9540(ab8500)) |
1687 | ret = sysfs_create_group(&ab8500->dev->kobj, | |
1688 | &ab9540_attr_group); | |
1689 | else | |
1690 | ret = sysfs_create_group(&ab8500->dev->kobj, | |
1691 | &ab8500_attr_group); | |
cca69b67 MW |
1692 | if (ret) |
1693 | dev_err(ab8500->dev, "error creating sysfs entries\n"); | |
06e589ef LJ |
1694 | |
1695 | return ret; | |
62579266 RV |
1696 | } |
1697 | ||
4740f73f | 1698 | static int ab8500_remove(struct platform_device *pdev) |
62579266 | 1699 | { |
d28f1db8 LJ |
1700 | struct ab8500 *ab8500 = platform_get_drvdata(pdev); |
1701 | ||
d6255529 LW |
1702 | if (is_ab9540(ab8500)) |
1703 | sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group); | |
1704 | else | |
1705 | sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group); | |
06e589ef | 1706 | |
62579266 | 1707 | mfd_remove_devices(ab8500->dev); |
62579266 RV |
1708 | |
1709 | return 0; | |
1710 | } | |
1711 | ||
d28f1db8 LJ |
1712 | static const struct platform_device_id ab8500_id[] = { |
1713 | { "ab8500-core", AB8500_VERSION_AB8500 }, | |
1714 | { "ab8505-i2c", AB8500_VERSION_AB8505 }, | |
1715 | { "ab9540-i2c", AB8500_VERSION_AB9540 }, | |
1716 | { "ab8540-i2c", AB8500_VERSION_AB8540 }, | |
1717 | { } | |
1718 | }; | |
1719 | ||
1720 | static struct platform_driver ab8500_core_driver = { | |
1721 | .driver = { | |
1722 | .name = "ab8500-core", | |
1723 | .owner = THIS_MODULE, | |
1724 | }, | |
1725 | .probe = ab8500_probe, | |
84449216 | 1726 | .remove = ab8500_remove, |
d28f1db8 LJ |
1727 | .id_table = ab8500_id, |
1728 | }; | |
1729 | ||
1730 | static int __init ab8500_core_init(void) | |
1731 | { | |
1732 | return platform_driver_register(&ab8500_core_driver); | |
1733 | } | |
1734 | ||
1735 | static void __exit ab8500_core_exit(void) | |
1736 | { | |
1737 | platform_driver_unregister(&ab8500_core_driver); | |
1738 | } | |
ba7cbc3e | 1739 | core_initcall(ab8500_core_init); |
d28f1db8 LJ |
1740 | module_exit(ab8500_core_exit); |
1741 | ||
adceed62 | 1742 | MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent"); |
62579266 RV |
1743 | MODULE_DESCRIPTION("AB8500 MFD core"); |
1744 | MODULE_LICENSE("GPL v2"); |