Commit | Line | Data |
---|---|---|
a603a7fa | 1 | /* |
fc7b92fc B |
2 | * twl_core.c - driver for TWL4030/TWL5030/TWL60X0/TPS659x0 PM |
3 | * and audio CODEC devices | |
a603a7fa DB |
4 | * |
5 | * Copyright (C) 2005-2006 Texas Instruments, Inc. | |
6 | * | |
7 | * Modifications to defer interrupt handling to a kernel thread: | |
8 | * Copyright (C) 2006 MontaVista Software, Inc. | |
9 | * | |
10 | * Based on tlv320aic23.c: | |
11 | * Copyright (c) by Kai Svahn <kai.svahn@nokia.com> | |
12 | * | |
13 | * Code cleanup and modifications to IRQ handler. | |
14 | * by syed khasim <x0khasim@ti.com> | |
15 | * | |
16 | * This program is free software; you can redistribute it and/or modify | |
17 | * it under the terms of the GNU General Public License as published by | |
18 | * the Free Software Foundation; either version 2 of the License, or | |
19 | * (at your option) any later version. | |
20 | * | |
21 | * This program is distributed in the hope that it will be useful, | |
22 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | * GNU General Public License for more details. | |
25 | * | |
26 | * You should have received a copy of the GNU General Public License | |
27 | * along with this program; if not, write to the Free Software | |
28 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
29 | */ | |
30 | ||
a603a7fa DB |
31 | #include <linux/init.h> |
32 | #include <linux/mutex.h> | |
4e36dd33 | 33 | #include <linux/module.h> |
a603a7fa | 34 | #include <linux/platform_device.h> |
2473d25a | 35 | #include <linux/regmap.h> |
a603a7fa | 36 | #include <linux/clk.h> |
a30d46c0 | 37 | #include <linux/err.h> |
aeb5032b BC |
38 | #include <linux/device.h> |
39 | #include <linux/of.h> | |
40 | #include <linux/of_irq.h> | |
41 | #include <linux/of_platform.h> | |
e7cc3aca | 42 | #include <linux/irq.h> |
aeb5032b | 43 | #include <linux/irqdomain.h> |
a603a7fa | 44 | |
dad759ff DB |
45 | #include <linux/regulator/machine.h> |
46 | ||
a603a7fa | 47 | #include <linux/i2c.h> |
b07682b6 | 48 | #include <linux/i2c/twl.h> |
a603a7fa | 49 | |
1b8f333f | 50 | #include "twl-core.h" |
a603a7fa DB |
51 | |
52 | /* | |
53 | * The TWL4030 "Triton 2" is one of a family of a multi-function "Power | |
54 | * Management and System Companion Device" chips originally designed for | |
55 | * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, | |
56 | * often at around 3 Mbit/sec, including for interrupt handling. | |
57 | * | |
58 | * This driver core provides genirq support for the interrupts emitted, | |
59 | * by the various modules, and exports register access primitives. | |
60 | * | |
61 | * FIXME this driver currently requires use of the first interrupt line | |
62 | * (and associated registers). | |
63 | */ | |
64 | ||
fc7b92fc | 65 | #define DRIVER_NAME "twl" |
a603a7fa | 66 | |
a603a7fa DB |
67 | /* Triton Core internal information (BEGIN) */ |
68 | ||
fc7b92fc | 69 | #define TWL_NUM_SLAVES 4 |
a603a7fa | 70 | |
fc7b92fc B |
71 | #define SUB_CHIP_ID0 0 |
72 | #define SUB_CHIP_ID1 1 | |
73 | #define SUB_CHIP_ID2 2 | |
74 | #define SUB_CHIP_ID3 3 | |
364cedb2 | 75 | #define SUB_CHIP_ID_INVAL 0xff |
fc7b92fc | 76 | |
a603a7fa DB |
77 | /* Base Address defns for twl4030_map[] */ |
78 | ||
79 | /* subchip/slave 0 - USB ID */ | |
80 | #define TWL4030_BASEADD_USB 0x0000 | |
81 | ||
82 | /* subchip/slave 1 - AUD ID */ | |
83 | #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 | |
84 | #define TWL4030_BASEADD_GPIO 0x0098 | |
85 | #define TWL4030_BASEADD_INTBR 0x0085 | |
86 | #define TWL4030_BASEADD_PIH 0x0080 | |
87 | #define TWL4030_BASEADD_TEST 0x004C | |
88 | ||
89 | /* subchip/slave 2 - AUX ID */ | |
90 | #define TWL4030_BASEADD_INTERRUPTS 0x00B9 | |
91 | #define TWL4030_BASEADD_LED 0x00EE | |
92 | #define TWL4030_BASEADD_MADC 0x0000 | |
93 | #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 | |
94 | #define TWL4030_BASEADD_PRECHARGE 0x00AA | |
5d4e9bd7 | 95 | #define TWL4030_BASEADD_PWM 0x00F8 |
a603a7fa DB |
96 | #define TWL4030_BASEADD_KEYPAD 0x00D2 |
97 | ||
1920a61e IK |
98 | #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ |
99 | #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's | |
100 | one */ | |
101 | ||
a603a7fa DB |
102 | /* subchip/slave 3 - POWER ID */ |
103 | #define TWL4030_BASEADD_BACKUP 0x0014 | |
104 | #define TWL4030_BASEADD_INT 0x002E | |
105 | #define TWL4030_BASEADD_PM_MASTER 0x0036 | |
106 | #define TWL4030_BASEADD_PM_RECEIVER 0x005B | |
107 | #define TWL4030_BASEADD_RTC 0x001C | |
108 | #define TWL4030_BASEADD_SECURED_REG 0x0000 | |
109 | ||
110 | /* Triton Core internal information (END) */ | |
111 | ||
112 | ||
e8deb28c B |
113 | /* subchip/slave 0 0x48 - POWER */ |
114 | #define TWL6030_BASEADD_RTC 0x0000 | |
5d4e9bd7 | 115 | #define TWL6030_BASEADD_SECURED_REG 0x0017 |
e8deb28c B |
116 | #define TWL6030_BASEADD_PM_MASTER 0x001F |
117 | #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ | |
118 | #define TWL6030_BASEADD_PM_MISC 0x00E2 | |
119 | #define TWL6030_BASEADD_PM_PUPD 0x00F0 | |
120 | ||
121 | /* subchip/slave 1 0x49 - FEATURE */ | |
122 | #define TWL6030_BASEADD_USB 0x0000 | |
123 | #define TWL6030_BASEADD_GPADC_CTRL 0x002E | |
124 | #define TWL6030_BASEADD_AUX 0x0090 | |
125 | #define TWL6030_BASEADD_PWM 0x00BA | |
126 | #define TWL6030_BASEADD_GASGAUGE 0x00C0 | |
127 | #define TWL6030_BASEADD_PIH 0x00D0 | |
128 | #define TWL6030_BASEADD_CHARGER 0x00E0 | |
521d8ec3 | 129 | #define TWL6025_BASEADD_CHARGER 0x00DA |
5d4e9bd7 | 130 | #define TWL6030_BASEADD_LED 0x00F4 |
e8deb28c B |
131 | |
132 | /* subchip/slave 2 0x4A - DFT */ | |
133 | #define TWL6030_BASEADD_DIEID 0x00C0 | |
134 | ||
135 | /* subchip/slave 3 0x4B - AUDIO */ | |
136 | #define TWL6030_BASEADD_AUDIO 0x0000 | |
137 | #define TWL6030_BASEADD_RSV 0x0000 | |
fa0d9762 | 138 | #define TWL6030_BASEADD_ZERO 0x0000 |
e8deb28c | 139 | |
a603a7fa DB |
140 | /* Few power values */ |
141 | #define R_CFG_BOOT 0x05 | |
a603a7fa DB |
142 | |
143 | /* some fields in R_CFG_BOOT */ | |
144 | #define HFCLK_FREQ_19p2_MHZ (1 << 0) | |
145 | #define HFCLK_FREQ_26_MHZ (2 << 0) | |
146 | #define HFCLK_FREQ_38p4_MHZ (3 << 0) | |
147 | #define HIGH_PERF_SQ (1 << 3) | |
38a68496 | 148 | #define CK32K_LOWPWR_EN (1 << 7) |
a603a7fa | 149 | |
a603a7fa DB |
150 | /*----------------------------------------------------------------------*/ |
151 | ||
a603a7fa DB |
152 | /* is driver active, bound to a chip? */ |
153 | static bool inuse; | |
154 | ||
ca972d13 L |
155 | /* TWL IDCODE Register value */ |
156 | static u32 twl_idcode; | |
157 | ||
e8deb28c B |
158 | static unsigned int twl_id; |
159 | unsigned int twl_rev(void) | |
160 | { | |
161 | return twl_id; | |
162 | } | |
163 | EXPORT_SYMBOL(twl_rev); | |
164 | ||
165 | /* Structure for each TWL4030/TWL6030 Slave */ | |
fc7b92fc | 166 | struct twl_client { |
a603a7fa | 167 | struct i2c_client *client; |
2473d25a | 168 | struct regmap *regmap; |
a603a7fa DB |
169 | }; |
170 | ||
fc7b92fc | 171 | static struct twl_client twl_modules[TWL_NUM_SLAVES]; |
a603a7fa | 172 | |
a603a7fa | 173 | /* mapping the module id to slave id and base address */ |
fc7b92fc | 174 | struct twl_mapping { |
a603a7fa DB |
175 | unsigned char sid; /* Slave ID */ |
176 | unsigned char base; /* base address */ | |
177 | }; | |
2cfcce18 | 178 | static struct twl_mapping *twl_map; |
a603a7fa | 179 | |
da059ecf | 180 | static struct twl_mapping twl4030_map[] = { |
a603a7fa DB |
181 | /* |
182 | * NOTE: don't change this table without updating the | |
e8deb28c | 183 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
a603a7fa DB |
184 | * so they continue to match the order in this table. |
185 | */ | |
186 | ||
5d4e9bd7 | 187 | /* Common IPs */ |
a603a7fa | 188 | { 0, TWL4030_BASEADD_USB }, |
5d4e9bd7 PU |
189 | { 1, TWL4030_BASEADD_PIH }, |
190 | { 2, TWL4030_BASEADD_MAIN_CHARGE }, | |
191 | { 3, TWL4030_BASEADD_PM_MASTER }, | |
192 | { 3, TWL4030_BASEADD_PM_RECEIVER }, | |
193 | ||
194 | { 3, TWL4030_BASEADD_RTC }, | |
195 | { 2, TWL4030_BASEADD_PWM }, | |
196 | { 2, TWL4030_BASEADD_LED }, | |
197 | { 3, TWL4030_BASEADD_SECURED_REG }, | |
198 | ||
199 | /* TWL4030 specific IPs */ | |
a603a7fa DB |
200 | { 1, TWL4030_BASEADD_AUDIO_VOICE }, |
201 | { 1, TWL4030_BASEADD_GPIO }, | |
202 | { 1, TWL4030_BASEADD_INTBR }, | |
6691ccd0 | 203 | { 1, TWL4030_BASEADD_TEST }, |
a603a7fa | 204 | { 2, TWL4030_BASEADD_KEYPAD }, |
5d4e9bd7 | 205 | |
a603a7fa DB |
206 | { 2, TWL4030_BASEADD_MADC }, |
207 | { 2, TWL4030_BASEADD_INTERRUPTS }, | |
a603a7fa | 208 | { 2, TWL4030_BASEADD_PRECHARGE }, |
a603a7fa DB |
209 | { 3, TWL4030_BASEADD_BACKUP }, |
210 | { 3, TWL4030_BASEADD_INT }, | |
6691ccd0 | 211 | |
5d4e9bd7 PU |
212 | { 2, TWL5031_BASEADD_ACCESSORY }, |
213 | { 2, TWL5031_BASEADD_INTERRUPTS }, | |
a603a7fa DB |
214 | }; |
215 | ||
2473d25a PU |
216 | static struct regmap_config twl4030_regmap_config[4] = { |
217 | { | |
218 | /* Address 0x48 */ | |
219 | .reg_bits = 8, | |
220 | .val_bits = 8, | |
221 | .max_register = 0xff, | |
222 | }, | |
223 | { | |
224 | /* Address 0x49 */ | |
225 | .reg_bits = 8, | |
226 | .val_bits = 8, | |
227 | .max_register = 0xff, | |
228 | }, | |
229 | { | |
230 | /* Address 0x4a */ | |
231 | .reg_bits = 8, | |
232 | .val_bits = 8, | |
233 | .max_register = 0xff, | |
234 | }, | |
235 | { | |
236 | /* Address 0x4b */ | |
237 | .reg_bits = 8, | |
238 | .val_bits = 8, | |
239 | .max_register = 0xff, | |
240 | }, | |
241 | }; | |
242 | ||
e8deb28c B |
243 | static struct twl_mapping twl6030_map[] = { |
244 | /* | |
245 | * NOTE: don't change this table without updating the | |
246 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* | |
247 | * so they continue to match the order in this table. | |
248 | */ | |
5d4e9bd7 PU |
249 | |
250 | /* Common IPs */ | |
251 | { 1, TWL6030_BASEADD_USB }, | |
252 | { 1, TWL6030_BASEADD_PIH }, | |
253 | { 1, TWL6030_BASEADD_CHARGER }, | |
254 | { 0, TWL6030_BASEADD_PM_MASTER }, | |
255 | { 0, TWL6030_BASEADD_PM_SLAVE_MISC }, | |
256 | ||
257 | { 0, TWL6030_BASEADD_RTC }, | |
258 | { 1, TWL6030_BASEADD_PWM }, | |
259 | { 1, TWL6030_BASEADD_LED }, | |
260 | { 0, TWL6030_BASEADD_SECURED_REG }, | |
261 | ||
262 | /* TWL6030 specific IPs */ | |
263 | { 0, TWL6030_BASEADD_ZERO }, | |
264 | { 1, TWL6030_BASEADD_ZERO }, | |
265 | { 2, TWL6030_BASEADD_ZERO }, | |
266 | { 1, TWL6030_BASEADD_GPADC_CTRL }, | |
267 | { 1, TWL6030_BASEADD_GASGAUGE }, | |
e8deb28c B |
268 | }; |
269 | ||
2473d25a PU |
270 | static struct regmap_config twl6030_regmap_config[3] = { |
271 | { | |
272 | /* Address 0x48 */ | |
273 | .reg_bits = 8, | |
274 | .val_bits = 8, | |
275 | .max_register = 0xff, | |
276 | }, | |
277 | { | |
278 | /* Address 0x49 */ | |
279 | .reg_bits = 8, | |
280 | .val_bits = 8, | |
281 | .max_register = 0xff, | |
282 | }, | |
283 | { | |
284 | /* Address 0x4a */ | |
285 | .reg_bits = 8, | |
286 | .val_bits = 8, | |
287 | .max_register = 0xff, | |
288 | }, | |
289 | }; | |
290 | ||
a603a7fa DB |
291 | /*----------------------------------------------------------------------*/ |
292 | ||
5d4e9bd7 PU |
293 | static inline int twl_get_last_module(void) |
294 | { | |
295 | if (twl_class_is_4030()) | |
296 | return TWL4030_MODULE_LAST; | |
297 | else | |
298 | return TWL6030_MODULE_LAST; | |
299 | } | |
300 | ||
a603a7fa DB |
301 | /* Exported Functions */ |
302 | ||
303 | /** | |
fc7b92fc | 304 | * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
305 | * @mod_no: module number |
306 | * @value: an array of num_bytes+1 containing data to write | |
307 | * @reg: register address (just offset will do) | |
308 | * @num_bytes: number of bytes to transfer | |
309 | * | |
310 | * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and | |
311 | * valid data starts at Offset 1. | |
312 | * | |
313 | * Returns the result of operation - 0 is success | |
314 | */ | |
fc7b92fc | 315 | int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
316 | { |
317 | int ret; | |
318 | int sid; | |
fc7b92fc | 319 | struct twl_client *twl; |
a603a7fa | 320 | |
5d4e9bd7 | 321 | if (unlikely(mod_no >= twl_get_last_module())) { |
a603a7fa DB |
322 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
323 | return -EPERM; | |
324 | } | |
a603a7fa | 325 | if (unlikely(!inuse)) { |
8653be1a | 326 | pr_err("%s: not initialized\n", DRIVER_NAME); |
a603a7fa DB |
327 | return -EPERM; |
328 | } | |
8653be1a | 329 | sid = twl_map[mod_no].sid; |
364cedb2 PU |
330 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
331 | pr_err("%s: module %d is not part of the pmic\n", | |
332 | DRIVER_NAME, mod_no); | |
333 | return -EINVAL; | |
334 | } | |
8653be1a IY |
335 | twl = &twl_modules[sid]; |
336 | ||
2473d25a | 337 | ret = regmap_bulk_write(twl->regmap, twl_map[mod_no].base + reg, |
14591d88 | 338 | value, num_bytes); |
2473d25a PU |
339 | |
340 | if (ret) | |
341 | pr_err("%s: Write failed (mod %d, reg 0x%02x count %d)\n", | |
342 | DRIVER_NAME, mod_no, reg, num_bytes); | |
343 | ||
344 | return ret; | |
a603a7fa | 345 | } |
fc7b92fc | 346 | EXPORT_SYMBOL(twl_i2c_write); |
a603a7fa DB |
347 | |
348 | /** | |
fc7b92fc | 349 | * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
350 | * @mod_no: module number |
351 | * @value: an array of num_bytes containing data to be read | |
352 | * @reg: register address (just offset will do) | |
353 | * @num_bytes: number of bytes to transfer | |
354 | * | |
355 | * Returns result of operation - num_bytes is success else failure. | |
356 | */ | |
fc7b92fc | 357 | int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
358 | { |
359 | int ret; | |
a603a7fa | 360 | int sid; |
fc7b92fc | 361 | struct twl_client *twl; |
a603a7fa | 362 | |
5d4e9bd7 | 363 | if (unlikely(mod_no >= twl_get_last_module())) { |
a603a7fa DB |
364 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
365 | return -EPERM; | |
366 | } | |
a603a7fa | 367 | if (unlikely(!inuse)) { |
8653be1a | 368 | pr_err("%s: not initialized\n", DRIVER_NAME); |
a603a7fa DB |
369 | return -EPERM; |
370 | } | |
8653be1a | 371 | sid = twl_map[mod_no].sid; |
364cedb2 PU |
372 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
373 | pr_err("%s: module %d is not part of the pmic\n", | |
374 | DRIVER_NAME, mod_no); | |
375 | return -EINVAL; | |
376 | } | |
8653be1a IY |
377 | twl = &twl_modules[sid]; |
378 | ||
2473d25a PU |
379 | ret = regmap_bulk_read(twl->regmap, twl_map[mod_no].base + reg, |
380 | value, num_bytes); | |
381 | ||
382 | if (ret) | |
383 | pr_err("%s: Read failed (mod %d, reg 0x%02x count %d)\n", | |
384 | DRIVER_NAME, mod_no, reg, num_bytes); | |
385 | ||
386 | return ret; | |
a603a7fa | 387 | } |
fc7b92fc | 388 | EXPORT_SYMBOL(twl_i2c_read); |
a603a7fa DB |
389 | |
390 | /** | |
fc7b92fc | 391 | * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
392 | * @mod_no: module number |
393 | * @value: the value to be written 8 bit | |
394 | * @reg: register address (just offset will do) | |
395 | * | |
396 | * Returns result of operation - 0 is success | |
397 | */ | |
fc7b92fc | 398 | int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) |
a603a7fa | 399 | { |
14591d88 | 400 | return twl_i2c_write(mod_no, &value, reg, 1); |
a603a7fa | 401 | } |
fc7b92fc | 402 | EXPORT_SYMBOL(twl_i2c_write_u8); |
a603a7fa DB |
403 | |
404 | /** | |
fc7b92fc | 405 | * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
406 | * @mod_no: module number |
407 | * @value: the value read 8 bit | |
408 | * @reg: register address (just offset will do) | |
409 | * | |
410 | * Returns result of operation - 0 is success | |
411 | */ | |
fc7b92fc | 412 | int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) |
a603a7fa | 413 | { |
fc7b92fc | 414 | return twl_i2c_read(mod_no, value, reg, 1); |
a603a7fa | 415 | } |
fc7b92fc | 416 | EXPORT_SYMBOL(twl_i2c_read_u8); |
a603a7fa DB |
417 | |
418 | /*----------------------------------------------------------------------*/ | |
419 | ||
ca972d13 L |
420 | /** |
421 | * twl_read_idcode_register - API to read the IDCODE register. | |
422 | * | |
423 | * Unlocks the IDCODE register and read the 32 bit value. | |
424 | */ | |
425 | static int twl_read_idcode_register(void) | |
426 | { | |
427 | int err; | |
428 | ||
429 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, | |
430 | REG_UNLOCK_TEST_REG); | |
431 | if (err) { | |
432 | pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); | |
433 | goto fail; | |
434 | } | |
435 | ||
436 | err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), | |
437 | REG_IDCODE_7_0, 4); | |
438 | if (err) { | |
439 | pr_err("TWL4030: unable to read IDCODE -%d\n", err); | |
440 | goto fail; | |
441 | } | |
442 | ||
443 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); | |
444 | if (err) | |
445 | pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); | |
446 | fail: | |
447 | return err; | |
448 | } | |
449 | ||
450 | /** | |
451 | * twl_get_type - API to get TWL Si type. | |
452 | * | |
453 | * Api to get the TWL Si type from IDCODE value. | |
454 | */ | |
455 | int twl_get_type(void) | |
456 | { | |
457 | return TWL_SIL_TYPE(twl_idcode); | |
458 | } | |
459 | EXPORT_SYMBOL_GPL(twl_get_type); | |
460 | ||
461 | /** | |
462 | * twl_get_version - API to get TWL Si version. | |
463 | * | |
464 | * Api to get the TWL Si version from IDCODE value. | |
465 | */ | |
466 | int twl_get_version(void) | |
467 | { | |
468 | return TWL_SIL_REV(twl_idcode); | |
469 | } | |
470 | EXPORT_SYMBOL_GPL(twl_get_version); | |
471 | ||
2275c544 PU |
472 | /** |
473 | * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate. | |
474 | * | |
475 | * Api to get the TWL HFCLK rate based on BOOT_CFG register. | |
476 | */ | |
477 | int twl_get_hfclk_rate(void) | |
478 | { | |
479 | u8 ctrl; | |
480 | int rate; | |
481 | ||
482 | twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT); | |
483 | ||
484 | switch (ctrl & 0x3) { | |
485 | case HFCLK_FREQ_19p2_MHZ: | |
486 | rate = 19200000; | |
487 | break; | |
488 | case HFCLK_FREQ_26_MHZ: | |
489 | rate = 26000000; | |
490 | break; | |
491 | case HFCLK_FREQ_38p4_MHZ: | |
492 | rate = 38400000; | |
493 | break; | |
494 | default: | |
495 | pr_err("TWL4030: HFCLK is not configured\n"); | |
496 | rate = -EINVAL; | |
497 | break; | |
498 | } | |
499 | ||
500 | return rate; | |
501 | } | |
502 | EXPORT_SYMBOL_GPL(twl_get_hfclk_rate); | |
503 | ||
dad759ff DB |
504 | static struct device * |
505 | add_numbered_child(unsigned chip, const char *name, int num, | |
5725d66b DB |
506 | void *pdata, unsigned pdata_len, |
507 | bool can_wakeup, int irq0, int irq1) | |
a603a7fa | 508 | { |
5725d66b | 509 | struct platform_device *pdev; |
fc7b92fc | 510 | struct twl_client *twl = &twl_modules[chip]; |
5725d66b DB |
511 | int status; |
512 | ||
dad759ff | 513 | pdev = platform_device_alloc(name, num); |
5725d66b DB |
514 | if (!pdev) { |
515 | dev_dbg(&twl->client->dev, "can't alloc dev\n"); | |
516 | status = -ENOMEM; | |
517 | goto err; | |
518 | } | |
a603a7fa | 519 | |
5725d66b | 520 | pdev->dev.parent = &twl->client->dev; |
a603a7fa | 521 | |
5725d66b DB |
522 | if (pdata) { |
523 | status = platform_device_add_data(pdev, pdata, pdata_len); | |
524 | if (status < 0) { | |
525 | dev_dbg(&pdev->dev, "can't add platform_data\n"); | |
a603a7fa DB |
526 | goto err; |
527 | } | |
5725d66b | 528 | } |
a603a7fa | 529 | |
5725d66b DB |
530 | if (irq0) { |
531 | struct resource r[2] = { | |
532 | { .start = irq0, .flags = IORESOURCE_IRQ, }, | |
533 | { .start = irq1, .flags = IORESOURCE_IRQ, }, | |
534 | }; | |
a603a7fa | 535 | |
5725d66b | 536 | status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); |
a603a7fa | 537 | if (status < 0) { |
5725d66b | 538 | dev_dbg(&pdev->dev, "can't add irqs\n"); |
a603a7fa DB |
539 | goto err; |
540 | } | |
541 | } | |
542 | ||
5725d66b | 543 | status = platform_device_add(pdev); |
17ffba6a N |
544 | if (status == 0) |
545 | device_init_wakeup(&pdev->dev, can_wakeup); | |
a603a7fa | 546 | |
5725d66b DB |
547 | err: |
548 | if (status < 0) { | |
549 | platform_device_put(pdev); | |
550 | dev_err(&twl->client->dev, "can't add %s dev\n", name); | |
551 | return ERR_PTR(status); | |
552 | } | |
553 | return &pdev->dev; | |
554 | } | |
a603a7fa | 555 | |
dad759ff DB |
556 | static inline struct device *add_child(unsigned chip, const char *name, |
557 | void *pdata, unsigned pdata_len, | |
558 | bool can_wakeup, int irq0, int irq1) | |
559 | { | |
560 | return add_numbered_child(chip, name, -1, pdata, pdata_len, | |
561 | can_wakeup, irq0, irq1); | |
562 | } | |
563 | ||
564 | static struct device * | |
565 | add_regulator_linked(int num, struct regulator_init_data *pdata, | |
566 | struct regulator_consumer_supply *consumers, | |
521d8ec3 | 567 | unsigned num_consumers, unsigned long features) |
dad759ff | 568 | { |
e8deb28c | 569 | unsigned sub_chip_id; |
63bfff4e TK |
570 | struct twl_regulator_driver_data drv_data; |
571 | ||
dad759ff DB |
572 | /* regulator framework demands init_data ... */ |
573 | if (!pdata) | |
574 | return NULL; | |
575 | ||
b73eac78 | 576 | if (consumers) { |
dad759ff DB |
577 | pdata->consumer_supplies = consumers; |
578 | pdata->num_consumer_supplies = num_consumers; | |
579 | } | |
580 | ||
63bfff4e TK |
581 | if (pdata->driver_data) { |
582 | /* If we have existing drv_data, just add the flags */ | |
583 | struct twl_regulator_driver_data *tmp; | |
584 | tmp = pdata->driver_data; | |
585 | tmp->features |= features; | |
586 | } else { | |
587 | /* add new driver data struct, used only during init */ | |
588 | drv_data.features = features; | |
589 | drv_data.set_voltage = NULL; | |
590 | drv_data.get_voltage = NULL; | |
591 | drv_data.data = NULL; | |
592 | pdata->driver_data = &drv_data; | |
593 | } | |
521d8ec3 | 594 | |
dad759ff | 595 | /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ |
e8deb28c B |
596 | sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; |
597 | return add_numbered_child(sub_chip_id, "twl_reg", num, | |
dad759ff DB |
598 | pdata, sizeof(*pdata), false, 0, 0); |
599 | } | |
600 | ||
601 | static struct device * | |
521d8ec3 GG |
602 | add_regulator(int num, struct regulator_init_data *pdata, |
603 | unsigned long features) | |
dad759ff | 604 | { |
521d8ec3 | 605 | return add_regulator_linked(num, pdata, NULL, 0, features); |
dad759ff DB |
606 | } |
607 | ||
5725d66b DB |
608 | /* |
609 | * NOTE: We know the first 8 IRQs after pdata->base_irq are | |
610 | * for the PIH, and the next are for the PWR_INT SIH, since | |
611 | * that's how twl_init_irq() sets things up. | |
612 | */ | |
a603a7fa | 613 | |
dad759ff | 614 | static int |
9e178620 FB |
615 | add_children(struct twl4030_platform_data *pdata, unsigned irq_base, |
616 | unsigned long features) | |
5725d66b DB |
617 | { |
618 | struct device *child; | |
e8deb28c | 619 | unsigned sub_chip_id; |
a603a7fa | 620 | |
f78959cf | 621 | if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) { |
fc7b92fc | 622 | child = add_child(SUB_CHIP_ID1, "twl4030_gpio", |
5725d66b | 623 | pdata->gpio, sizeof(*pdata->gpio), |
9e178620 | 624 | false, irq_base + GPIO_INTR_OFFSET, 0); |
5725d66b DB |
625 | if (IS_ERR(child)) |
626 | return PTR_ERR(child); | |
a603a7fa DB |
627 | } |
628 | ||
f78959cf | 629 | if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) { |
fc7b92fc | 630 | child = add_child(SUB_CHIP_ID2, "twl4030_keypad", |
5725d66b | 631 | pdata->keypad, sizeof(*pdata->keypad), |
9e178620 | 632 | true, irq_base + KEYPAD_INTR_OFFSET, 0); |
5725d66b DB |
633 | if (IS_ERR(child)) |
634 | return PTR_ERR(child); | |
a603a7fa DB |
635 | } |
636 | ||
24ae36f5 PU |
637 | if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc && |
638 | twl_class_is_4030()) { | |
2d86ad37 | 639 | child = add_child(SUB_CHIP_ID2, "twl4030_madc", |
5725d66b | 640 | pdata->madc, sizeof(*pdata->madc), |
9e178620 | 641 | true, irq_base + MADC_INTR_OFFSET, 0); |
5725d66b DB |
642 | if (IS_ERR(child)) |
643 | return PTR_ERR(child); | |
a603a7fa DB |
644 | } |
645 | ||
f78959cf | 646 | if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) { |
a603a7fa | 647 | /* |
5725d66b | 648 | * REVISIT platform_data here currently might expose the |
a603a7fa | 649 | * "msecure" line ... but for now we just expect board |
5725d66b | 650 | * setup to tell the chip "it's always ok to SET_TIME". |
a603a7fa DB |
651 | * Eventually, Linux might become more aware of such |
652 | * HW security concerns, and "least privilege". | |
653 | */ | |
e8deb28c | 654 | sub_chip_id = twl_map[TWL_MODULE_RTC].sid; |
2d86ad37 | 655 | child = add_child(sub_chip_id, "twl_rtc", NULL, 0, |
9e178620 | 656 | true, irq_base + RTC_INTR_OFFSET, 0); |
5725d66b DB |
657 | if (IS_ERR(child)) |
658 | return PTR_ERR(child); | |
a603a7fa DB |
659 | } |
660 | ||
afc45898 PU |
661 | if (IS_ENABLED(CONFIG_PWM_TWL)) { |
662 | child = add_child(SUB_CHIP_ID1, "twl-pwm", NULL, 0, | |
663 | false, 0, 0); | |
664 | if (IS_ERR(child)) | |
665 | return PTR_ERR(child); | |
666 | } | |
667 | ||
668 | if (IS_ENABLED(CONFIG_PWM_TWL_LED)) { | |
669 | child = add_child(SUB_CHIP_ID1, "twl-pwmled", NULL, 0, | |
48a364b7 TR |
670 | false, 0, 0); |
671 | if (IS_ERR(child)) | |
672 | return PTR_ERR(child); | |
673 | } | |
674 | ||
f78959cf TR |
675 | if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb && |
676 | twl_class_is_4030()) { | |
f8ebdff0 RQ |
677 | |
678 | static struct regulator_consumer_supply usb1v5 = { | |
679 | .supply = "usb1v5", | |
680 | }; | |
681 | static struct regulator_consumer_supply usb1v8 = { | |
682 | .supply = "usb1v8", | |
683 | }; | |
ab37813f N |
684 | static struct regulator_consumer_supply usb3v1[] = { |
685 | { .supply = "usb3v1" }, | |
686 | { .supply = "bci3v1" }, | |
f8ebdff0 RQ |
687 | }; |
688 | ||
689 | /* First add the regulators so that they can be used by transceiver */ | |
f78959cf | 690 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { |
f8ebdff0 RQ |
691 | /* this is a template that gets copied */ |
692 | struct regulator_init_data usb_fixed = { | |
693 | .constraints.valid_modes_mask = | |
694 | REGULATOR_MODE_NORMAL | |
695 | | REGULATOR_MODE_STANDBY, | |
696 | .constraints.valid_ops_mask = | |
697 | REGULATOR_CHANGE_MODE | |
698 | | REGULATOR_CHANGE_STATUS, | |
699 | }; | |
700 | ||
701 | child = add_regulator_linked(TWL4030_REG_VUSB1V5, | |
521d8ec3 GG |
702 | &usb_fixed, &usb1v5, 1, |
703 | features); | |
f8ebdff0 RQ |
704 | if (IS_ERR(child)) |
705 | return PTR_ERR(child); | |
706 | ||
707 | child = add_regulator_linked(TWL4030_REG_VUSB1V8, | |
521d8ec3 GG |
708 | &usb_fixed, &usb1v8, 1, |
709 | features); | |
f8ebdff0 RQ |
710 | if (IS_ERR(child)) |
711 | return PTR_ERR(child); | |
712 | ||
713 | child = add_regulator_linked(TWL4030_REG_VUSB3V1, | |
ab37813f | 714 | &usb_fixed, usb3v1, 2, |
521d8ec3 | 715 | features); |
f8ebdff0 RQ |
716 | if (IS_ERR(child)) |
717 | return PTR_ERR(child); | |
718 | ||
719 | } | |
720 | ||
2d86ad37 PU |
721 | child = add_child(SUB_CHIP_ID0, "twl4030_usb", |
722 | pdata->usb, sizeof(*pdata->usb), true, | |
5725d66b | 723 | /* irq0 = USB_PRES, irq1 = USB */ |
9e178620 FB |
724 | irq_base + USB_PRES_INTR_OFFSET, |
725 | irq_base + USB_INTR_OFFSET); | |
f8ebdff0 | 726 | |
5725d66b DB |
727 | if (IS_ERR(child)) |
728 | return PTR_ERR(child); | |
dad759ff DB |
729 | |
730 | /* we need to connect regulators to this transceiver */ | |
f78959cf | 731 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) { |
1b65fa84 MB |
732 | usb1v5.dev_name = dev_name(child); |
733 | usb1v8.dev_name = dev_name(child); | |
ab37813f | 734 | usb3v1[0].dev_name = dev_name(child); |
f8ebdff0 | 735 | } |
dad759ff | 736 | } |
f78959cf TR |
737 | if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb && |
738 | twl_class_is_6030()) { | |
e70357e3 | 739 | |
521d8ec3 GG |
740 | static struct regulator_consumer_supply usb3v3; |
741 | int regulator; | |
e70357e3 | 742 | |
f78959cf | 743 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { |
e70357e3 HH |
744 | /* this is a template that gets copied */ |
745 | struct regulator_init_data usb_fixed = { | |
746 | .constraints.valid_modes_mask = | |
747 | REGULATOR_MODE_NORMAL | |
748 | | REGULATOR_MODE_STANDBY, | |
749 | .constraints.valid_ops_mask = | |
750 | REGULATOR_CHANGE_MODE | |
751 | | REGULATOR_CHANGE_STATUS, | |
752 | }; | |
753 | ||
521d8ec3 GG |
754 | if (features & TWL6025_SUBCLASS) { |
755 | usb3v3.supply = "ldousb"; | |
756 | regulator = TWL6025_REG_LDOUSB; | |
757 | } else { | |
758 | usb3v3.supply = "vusb"; | |
759 | regulator = TWL6030_REG_VUSB; | |
760 | } | |
761 | child = add_regulator_linked(regulator, &usb_fixed, | |
762 | &usb3v3, 1, | |
763 | features); | |
e70357e3 HH |
764 | if (IS_ERR(child)) |
765 | return PTR_ERR(child); | |
766 | } | |
767 | ||
521d8ec3 GG |
768 | pdata->usb->features = features; |
769 | ||
2d86ad37 PU |
770 | child = add_child(SUB_CHIP_ID0, "twl6030_usb", |
771 | pdata->usb, sizeof(*pdata->usb), true, | |
e70357e3 | 772 | /* irq1 = VBUS_PRES, irq0 = USB ID */ |
9e178620 FB |
773 | irq_base + USBOTG_INTR_OFFSET, |
774 | irq_base + USB_PRES_INTR_OFFSET); | |
e70357e3 HH |
775 | |
776 | if (IS_ERR(child)) | |
777 | return PTR_ERR(child); | |
778 | /* we need to connect regulators to this transceiver */ | |
f78959cf | 779 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) |
1b65fa84 | 780 | usb3v3.dev_name = dev_name(child); |
f78959cf TR |
781 | } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && |
782 | twl_class_is_6030()) { | |
521d8ec3 GG |
783 | if (features & TWL6025_SUBCLASS) |
784 | child = add_regulator(TWL6025_REG_LDOUSB, | |
785 | pdata->ldousb, features); | |
786 | else | |
787 | child = add_regulator(TWL6030_REG_VUSB, | |
788 | pdata->vusb, features); | |
e70357e3 | 789 | |
521d8ec3 GG |
790 | if (IS_ERR(child)) |
791 | return PTR_ERR(child); | |
e70357e3 | 792 | } |
dad759ff | 793 | |
f78959cf | 794 | if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { |
2d86ad37 PU |
795 | child = add_child(SUB_CHIP_ID3, "twl4030_wdt", NULL, 0, |
796 | false, 0, 0); | |
80e45b1e | 797 | if (IS_ERR(child)) |
9c3664dd FB |
798 | return PTR_ERR(child); |
799 | } | |
800 | ||
f78959cf | 801 | if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) { |
2d86ad37 PU |
802 | child = add_child(SUB_CHIP_ID3, "twl4030_pwrbutton", NULL, 0, |
803 | true, irq_base + 8 + 0, 0); | |
9c3664dd | 804 | if (IS_ERR(child)) |
80e45b1e TK |
805 | return PTR_ERR(child); |
806 | } | |
807 | ||
f78959cf TR |
808 | if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio && |
809 | twl_class_is_4030()) { | |
2d86ad37 | 810 | child = add_child(SUB_CHIP_ID1, "twl4030-audio", |
4ae6df5e | 811 | pdata->audio, sizeof(*pdata->audio), |
d62abe56 MLC |
812 | false, 0, 0); |
813 | if (IS_ERR(child)) | |
814 | return PTR_ERR(child); | |
815 | } | |
816 | ||
9da66539 | 817 | /* twl4030 regulators */ |
f78959cf | 818 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) { |
521d8ec3 GG |
819 | child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, |
820 | features); | |
dad759ff DB |
821 | if (IS_ERR(child)) |
822 | return PTR_ERR(child); | |
ab4abe05 | 823 | |
521d8ec3 GG |
824 | child = add_regulator(TWL4030_REG_VIO, pdata->vio, |
825 | features); | |
ab4abe05 JKS |
826 | if (IS_ERR(child)) |
827 | return PTR_ERR(child); | |
828 | ||
521d8ec3 GG |
829 | child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, |
830 | features); | |
ab4abe05 JKS |
831 | if (IS_ERR(child)) |
832 | return PTR_ERR(child); | |
833 | ||
521d8ec3 GG |
834 | child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, |
835 | features); | |
ab4abe05 JKS |
836 | if (IS_ERR(child)) |
837 | return PTR_ERR(child); | |
dad759ff | 838 | |
521d8ec3 GG |
839 | child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, |
840 | features); | |
dad759ff DB |
841 | if (IS_ERR(child)) |
842 | return PTR_ERR(child); | |
843 | ||
521d8ec3 GG |
844 | child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, |
845 | features); | |
dad759ff DB |
846 | if (IS_ERR(child)) |
847 | return PTR_ERR(child); | |
848 | ||
849 | child = add_regulator((features & TWL4030_VAUX2) | |
850 | ? TWL4030_REG_VAUX2_4030 | |
851 | : TWL4030_REG_VAUX2, | |
521d8ec3 | 852 | pdata->vaux2, features); |
dad759ff DB |
853 | if (IS_ERR(child)) |
854 | return PTR_ERR(child); | |
ab4abe05 | 855 | |
521d8ec3 GG |
856 | child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, |
857 | features); | |
ab4abe05 JKS |
858 | if (IS_ERR(child)) |
859 | return PTR_ERR(child); | |
860 | ||
521d8ec3 GG |
861 | child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, |
862 | features); | |
ab4abe05 JKS |
863 | if (IS_ERR(child)) |
864 | return PTR_ERR(child); | |
865 | ||
521d8ec3 GG |
866 | child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, |
867 | features); | |
ab4abe05 JKS |
868 | if (IS_ERR(child)) |
869 | return PTR_ERR(child); | |
dad759ff DB |
870 | } |
871 | ||
dad759ff | 872 | /* maybe add LDOs that are omitted on cost-reduced parts */ |
f78959cf | 873 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET) |
9da66539 | 874 | && twl_class_is_4030()) { |
521d8ec3 GG |
875 | child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, |
876 | features); | |
dad759ff DB |
877 | if (IS_ERR(child)) |
878 | return PTR_ERR(child); | |
dad759ff | 879 | |
521d8ec3 GG |
880 | child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, |
881 | features); | |
dad759ff DB |
882 | if (IS_ERR(child)) |
883 | return PTR_ERR(child); | |
884 | ||
521d8ec3 GG |
885 | child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, |
886 | features); | |
dad759ff DB |
887 | if (IS_ERR(child)) |
888 | return PTR_ERR(child); | |
889 | ||
521d8ec3 GG |
890 | child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, |
891 | features); | |
dad759ff DB |
892 | if (IS_ERR(child)) |
893 | return PTR_ERR(child); | |
894 | ||
521d8ec3 GG |
895 | child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, |
896 | features); | |
dad759ff DB |
897 | if (IS_ERR(child)) |
898 | return PTR_ERR(child); | |
899 | ||
521d8ec3 GG |
900 | child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, |
901 | features); | |
dad759ff DB |
902 | if (IS_ERR(child)) |
903 | return PTR_ERR(child); | |
a603a7fa DB |
904 | } |
905 | ||
9da66539 | 906 | /* twl6030 regulators */ |
f78959cf | 907 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && |
521d8ec3 | 908 | !(features & TWL6025_SUBCLASS)) { |
34a38440 TK |
909 | child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, |
910 | features); | |
911 | if (IS_ERR(child)) | |
912 | return PTR_ERR(child); | |
913 | ||
914 | child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, | |
915 | features); | |
916 | if (IS_ERR(child)) | |
917 | return PTR_ERR(child); | |
918 | ||
919 | child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, | |
920 | features); | |
921 | if (IS_ERR(child)) | |
922 | return PTR_ERR(child); | |
923 | ||
46eda3e9 PU |
924 | child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, |
925 | features); | |
926 | if (IS_ERR(child)) | |
927 | return PTR_ERR(child); | |
928 | ||
929 | child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, | |
930 | features); | |
931 | if (IS_ERR(child)) | |
932 | return PTR_ERR(child); | |
933 | ||
521d8ec3 GG |
934 | child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, |
935 | features); | |
936 | if (IS_ERR(child)) | |
937 | return PTR_ERR(child); | |
938 | ||
939 | child = add_regulator(TWL6030_REG_VPP, pdata->vpp, | |
940 | features); | |
941 | if (IS_ERR(child)) | |
942 | return PTR_ERR(child); | |
943 | ||
944 | child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, | |
945 | features); | |
946 | if (IS_ERR(child)) | |
947 | return PTR_ERR(child); | |
948 | ||
949 | child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, | |
950 | features); | |
951 | if (IS_ERR(child)) | |
952 | return PTR_ERR(child); | |
953 | ||
954 | child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, | |
955 | features); | |
956 | if (IS_ERR(child)) | |
957 | return PTR_ERR(child); | |
958 | ||
959 | child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, | |
960 | features); | |
961 | if (IS_ERR(child)) | |
962 | return PTR_ERR(child); | |
963 | ||
964 | child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, | |
965 | features); | |
966 | if (IS_ERR(child)) | |
967 | return PTR_ERR(child); | |
968 | ||
969 | child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, | |
970 | features); | |
971 | if (IS_ERR(child)) | |
972 | return PTR_ERR(child); | |
973 | ||
974 | child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, | |
975 | features); | |
976 | if (IS_ERR(child)) | |
977 | return PTR_ERR(child); | |
978 | } | |
979 | ||
980 | /* 6030 and 6025 share this regulator */ | |
f78959cf | 981 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030()) { |
521d8ec3 GG |
982 | child = add_regulator(TWL6030_REG_VANA, pdata->vana, |
983 | features); | |
984 | if (IS_ERR(child)) | |
985 | return PTR_ERR(child); | |
986 | } | |
987 | ||
988 | /* twl6025 regulators */ | |
f78959cf | 989 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && |
521d8ec3 GG |
990 | (features & TWL6025_SUBCLASS)) { |
991 | child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, | |
992 | features); | |
9da66539 RN |
993 | if (IS_ERR(child)) |
994 | return PTR_ERR(child); | |
995 | ||
521d8ec3 GG |
996 | child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, |
997 | features); | |
9da66539 RN |
998 | if (IS_ERR(child)) |
999 | return PTR_ERR(child); | |
1000 | ||
521d8ec3 GG |
1001 | child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, |
1002 | features); | |
9da66539 RN |
1003 | if (IS_ERR(child)) |
1004 | return PTR_ERR(child); | |
1005 | ||
521d8ec3 GG |
1006 | child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, |
1007 | features); | |
9da66539 RN |
1008 | if (IS_ERR(child)) |
1009 | return PTR_ERR(child); | |
1010 | ||
521d8ec3 GG |
1011 | child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, |
1012 | features); | |
9da66539 RN |
1013 | if (IS_ERR(child)) |
1014 | return PTR_ERR(child); | |
1015 | ||
521d8ec3 GG |
1016 | child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, |
1017 | features); | |
9da66539 RN |
1018 | if (IS_ERR(child)) |
1019 | return PTR_ERR(child); | |
1020 | ||
521d8ec3 GG |
1021 | child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, |
1022 | features); | |
9da66539 RN |
1023 | if (IS_ERR(child)) |
1024 | return PTR_ERR(child); | |
1025 | ||
521d8ec3 GG |
1026 | child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, |
1027 | features); | |
9da66539 RN |
1028 | if (IS_ERR(child)) |
1029 | return PTR_ERR(child); | |
1030 | ||
521d8ec3 GG |
1031 | child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, |
1032 | features); | |
9da66539 RN |
1033 | if (IS_ERR(child)) |
1034 | return PTR_ERR(child); | |
8e6de4a3 | 1035 | |
521d8ec3 GG |
1036 | child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, |
1037 | features); | |
8e6de4a3 B |
1038 | if (IS_ERR(child)) |
1039 | return PTR_ERR(child); | |
521d8ec3 GG |
1040 | |
1041 | child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, | |
1042 | features); | |
1043 | if (IS_ERR(child)) | |
1044 | return PTR_ERR(child); | |
1045 | ||
9da66539 RN |
1046 | } |
1047 | ||
f78959cf | 1048 | if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && |
11c39c4b | 1049 | !(features & (TPS_SUBSET | TWL5031))) { |
2d86ad37 | 1050 | child = add_child(SUB_CHIP_ID3, "twl4030_bci", |
11c39c4b GI |
1051 | pdata->bci, sizeof(*pdata->bci), false, |
1052 | /* irq0 = CHG_PRES, irq1 = BCI */ | |
9e178620 FB |
1053 | irq_base + BCI_PRES_INTR_OFFSET, |
1054 | irq_base + BCI_INTR_OFFSET); | |
11c39c4b GI |
1055 | if (IS_ERR(child)) |
1056 | return PTR_ERR(child); | |
1057 | } | |
1058 | ||
5725d66b | 1059 | return 0; |
a603a7fa DB |
1060 | } |
1061 | ||
1062 | /*----------------------------------------------------------------------*/ | |
1063 | ||
1064 | /* | |
1065 | * These three functions initialize the on-chip clock framework, | |
1066 | * letting it generate the right frequencies for USB, MADC, and | |
1067 | * other purposes. | |
1068 | */ | |
1069 | static inline int __init protect_pm_master(void) | |
1070 | { | |
1071 | int e = 0; | |
1072 | ||
d640e757 PU |
1073 | e = twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0, |
1074 | TWL4030_PM_MASTER_PROTECT_KEY); | |
a603a7fa DB |
1075 | return e; |
1076 | } | |
1077 | ||
1078 | static inline int __init unprotect_pm_master(void) | |
1079 | { | |
1080 | int e = 0; | |
1081 | ||
d640e757 PU |
1082 | e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1, |
1083 | TWL4030_PM_MASTER_PROTECT_KEY); | |
1084 | e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2, | |
1085 | TWL4030_PM_MASTER_PROTECT_KEY); | |
49e6f87e | 1086 | |
a603a7fa DB |
1087 | return e; |
1088 | } | |
1089 | ||
38a68496 IK |
1090 | static void clocks_init(struct device *dev, |
1091 | struct twl4030_clock_init_data *clock) | |
a603a7fa DB |
1092 | { |
1093 | int e = 0; | |
1094 | struct clk *osc; | |
1095 | u32 rate; | |
1096 | u8 ctrl = HFCLK_FREQ_26_MHZ; | |
1097 | ||
defa6be1 | 1098 | osc = clk_get(dev, "fck"); |
a603a7fa | 1099 | if (IS_ERR(osc)) { |
fc7b92fc | 1100 | printk(KERN_WARNING "Skipping twl internal clock init and " |
a603a7fa DB |
1101 | "using bootloader value (unknown osc rate)\n"); |
1102 | return; | |
1103 | } | |
1104 | ||
1105 | rate = clk_get_rate(osc); | |
1106 | clk_put(osc); | |
1107 | ||
1108 | switch (rate) { | |
1109 | case 19200000: | |
1110 | ctrl = HFCLK_FREQ_19p2_MHZ; | |
1111 | break; | |
1112 | case 26000000: | |
1113 | ctrl = HFCLK_FREQ_26_MHZ; | |
1114 | break; | |
1115 | case 38400000: | |
1116 | ctrl = HFCLK_FREQ_38p4_MHZ; | |
1117 | break; | |
1118 | } | |
1119 | ||
1120 | ctrl |= HIGH_PERF_SQ; | |
38a68496 IK |
1121 | if (clock && clock->ck32k_lowpwr_enable) |
1122 | ctrl |= CK32K_LOWPWR_EN; | |
1123 | ||
a603a7fa DB |
1124 | e |= unprotect_pm_master(); |
1125 | /* effect->MADC+USB ck en */ | |
fc7b92fc | 1126 | e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); |
a603a7fa DB |
1127 | e |= protect_pm_master(); |
1128 | ||
1129 | if (e < 0) | |
1130 | pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); | |
1131 | } | |
1132 | ||
1133 | /*----------------------------------------------------------------------*/ | |
1134 | ||
a603a7fa | 1135 | |
fc7b92fc | 1136 | static int twl_remove(struct i2c_client *client) |
a603a7fa | 1137 | { |
364cedb2 | 1138 | unsigned i, num_slaves; |
a30d46c0 | 1139 | int status; |
a603a7fa | 1140 | |
364cedb2 | 1141 | if (twl_class_is_4030()) { |
e8deb28c | 1142 | status = twl4030_exit_irq(); |
364cedb2 PU |
1143 | num_slaves = TWL_NUM_SLAVES; |
1144 | } else { | |
e8deb28c | 1145 | status = twl6030_exit_irq(); |
364cedb2 PU |
1146 | num_slaves = TWL_NUM_SLAVES - 1; |
1147 | } | |
e8deb28c | 1148 | |
a30d46c0 DB |
1149 | if (status < 0) |
1150 | return status; | |
a603a7fa | 1151 | |
364cedb2 | 1152 | for (i = 0; i < num_slaves; i++) { |
fc7b92fc | 1153 | struct twl_client *twl = &twl_modules[i]; |
a603a7fa DB |
1154 | |
1155 | if (twl->client && twl->client != client) | |
1156 | i2c_unregister_device(twl->client); | |
fc7b92fc | 1157 | twl_modules[i].client = NULL; |
a603a7fa DB |
1158 | } |
1159 | inuse = false; | |
1160 | return 0; | |
1161 | } | |
1162 | ||
ec1a07b3 | 1163 | /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ |
f791be49 | 1164 | static int |
fc7b92fc | 1165 | twl_probe(struct i2c_client *client, const struct i2c_device_id *id) |
a603a7fa | 1166 | { |
a603a7fa | 1167 | struct twl4030_platform_data *pdata = client->dev.platform_data; |
aeb5032b | 1168 | struct device_node *node = client->dev.of_node; |
defa6be1 | 1169 | struct platform_device *pdev; |
2473d25a | 1170 | struct regmap_config *twl_regmap_config; |
ec1a07b3 BC |
1171 | int irq_base = 0; |
1172 | int status; | |
364cedb2 | 1173 | unsigned i, num_slaves; |
aeb5032b | 1174 | |
defa6be1 TL |
1175 | pdev = platform_device_alloc(DRIVER_NAME, -1); |
1176 | if (!pdev) { | |
1177 | dev_err(&client->dev, "can't alloc pdev\n"); | |
1178 | return -ENOMEM; | |
1179 | } | |
1180 | ||
1181 | status = platform_device_add(pdev); | |
1182 | if (status) { | |
1183 | platform_device_put(pdev); | |
1184 | return status; | |
1185 | } | |
1186 | ||
aeb5032b BC |
1187 | if (node && !pdata) { |
1188 | /* | |
1189 | * XXX: Temporary pdata until the information is correctly | |
1190 | * retrieved by every TWL modules from DT. | |
1191 | */ | |
1192 | pdata = devm_kzalloc(&client->dev, | |
1193 | sizeof(struct twl4030_platform_data), | |
1194 | GFP_KERNEL); | |
defa6be1 TL |
1195 | if (!pdata) { |
1196 | status = -ENOMEM; | |
1197 | goto free; | |
1198 | } | |
aeb5032b | 1199 | } |
a603a7fa DB |
1200 | |
1201 | if (!pdata) { | |
1202 | dev_dbg(&client->dev, "no platform data?\n"); | |
defa6be1 TL |
1203 | status = -EINVAL; |
1204 | goto free; | |
a603a7fa DB |
1205 | } |
1206 | ||
defa6be1 TL |
1207 | platform_set_drvdata(pdev, pdata); |
1208 | ||
a603a7fa DB |
1209 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { |
1210 | dev_dbg(&client->dev, "can't talk I2C?\n"); | |
defa6be1 TL |
1211 | status = -EIO; |
1212 | goto free; | |
a603a7fa DB |
1213 | } |
1214 | ||
a30d46c0 | 1215 | if (inuse) { |
a603a7fa | 1216 | dev_dbg(&client->dev, "driver is already in use\n"); |
defa6be1 TL |
1217 | status = -EBUSY; |
1218 | goto free; | |
a603a7fa DB |
1219 | } |
1220 | ||
364cedb2 PU |
1221 | if ((id->driver_data) & TWL6030_CLASS) { |
1222 | twl_id = TWL6030_CLASS_ID; | |
1223 | twl_map = &twl6030_map[0]; | |
5d4e9bd7 PU |
1224 | /* The charger base address is different in twl6025 */ |
1225 | if ((id->driver_data) & TWL6025_SUBCLASS) | |
1226 | twl_map[TWL_MODULE_MAIN_CHARGE].base = | |
1227 | TWL6025_BASEADD_CHARGER; | |
2473d25a | 1228 | twl_regmap_config = twl6030_regmap_config; |
364cedb2 PU |
1229 | num_slaves = TWL_NUM_SLAVES - 1; |
1230 | } else { | |
1231 | twl_id = TWL4030_CLASS_ID; | |
1232 | twl_map = &twl4030_map[0]; | |
2473d25a | 1233 | twl_regmap_config = twl4030_regmap_config; |
364cedb2 PU |
1234 | num_slaves = TWL_NUM_SLAVES; |
1235 | } | |
1236 | ||
1237 | for (i = 0; i < num_slaves; i++) { | |
ec1a07b3 | 1238 | struct twl_client *twl = &twl_modules[i]; |
a603a7fa | 1239 | |
ec1a07b3 | 1240 | if (i == 0) { |
a603a7fa | 1241 | twl->client = client; |
ec1a07b3 | 1242 | } else { |
a603a7fa | 1243 | twl->client = i2c_new_dummy(client->adapter, |
2473d25a | 1244 | client->addr + i); |
a603a7fa | 1245 | if (!twl->client) { |
a8643430 | 1246 | dev_err(&client->dev, |
a603a7fa DB |
1247 | "can't attach client %d\n", i); |
1248 | status = -ENOMEM; | |
1249 | goto fail; | |
1250 | } | |
a603a7fa | 1251 | } |
2473d25a PU |
1252 | |
1253 | twl->regmap = devm_regmap_init_i2c(twl->client, | |
1254 | &twl_regmap_config[i]); | |
1255 | if (IS_ERR(twl->regmap)) { | |
1256 | status = PTR_ERR(twl->regmap); | |
1257 | dev_err(&client->dev, | |
1258 | "Failed to allocate regmap %d, err: %d\n", i, | |
1259 | status); | |
1260 | goto fail; | |
1261 | } | |
a603a7fa | 1262 | } |
ec1a07b3 | 1263 | |
a603a7fa DB |
1264 | inuse = true; |
1265 | ||
1266 | /* setup clock framework */ | |
defa6be1 | 1267 | clocks_init(&pdev->dev, pdata->clock); |
a603a7fa | 1268 | |
ca972d13 L |
1269 | /* read TWL IDCODE Register */ |
1270 | if (twl_id == TWL4030_CLASS_ID) { | |
ec1a07b3 BC |
1271 | status = twl_read_idcode_register(); |
1272 | WARN(status < 0, "Error: reading twl_idcode register value\n"); | |
ca972d13 L |
1273 | } |
1274 | ||
ebf0bd36 | 1275 | /* load power event scripts */ |
f78959cf | 1276 | if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power) |
ebf0bd36 AK |
1277 | twl4030_power_init(pdata->power); |
1278 | ||
a603a7fa | 1279 | /* Maybe init the T2 Interrupt subsystem */ |
9e178620 | 1280 | if (client->irq) { |
e8deb28c B |
1281 | if (twl_class_is_4030()) { |
1282 | twl4030_init_chip_irq(id->name); | |
78518ffa | 1283 | irq_base = twl4030_init_irq(&client->dev, client->irq); |
e8deb28c | 1284 | } else { |
78518ffa | 1285 | irq_base = twl6030_init_irq(&client->dev, client->irq); |
e8deb28c B |
1286 | } |
1287 | ||
78518ffa BC |
1288 | if (irq_base < 0) { |
1289 | status = irq_base; | |
a30d46c0 | 1290 | goto fail; |
78518ffa | 1291 | } |
a603a7fa DB |
1292 | } |
1293 | ||
ec1a07b3 BC |
1294 | /* |
1295 | * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. | |
a29aaf55 MS |
1296 | * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, |
1297 | * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. | |
1298 | */ | |
a29aaf55 | 1299 | if (twl_class_is_4030()) { |
ec1a07b3 BC |
1300 | u8 temp; |
1301 | ||
a29aaf55 MS |
1302 | twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); |
1303 | temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ | |
ec1a07b3 | 1304 | I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); |
a29aaf55 MS |
1305 | twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); |
1306 | } | |
1307 | ||
964dba28 | 1308 | status = -ENODEV; |
aeb5032b BC |
1309 | if (node) |
1310 | status = of_platform_populate(node, NULL, NULL, &client->dev); | |
964dba28 | 1311 | if (status) |
9e178620 | 1312 | status = add_children(pdata, irq_base, id->driver_data); |
aeb5032b | 1313 | |
a603a7fa DB |
1314 | fail: |
1315 | if (status < 0) | |
fc7b92fc | 1316 | twl_remove(client); |
defa6be1 TL |
1317 | free: |
1318 | if (status < 0) | |
1319 | platform_device_unregister(pdev); | |
ec1a07b3 | 1320 | |
a603a7fa DB |
1321 | return status; |
1322 | } | |
1323 | ||
fc7b92fc | 1324 | static const struct i2c_device_id twl_ids[] = { |
dad759ff DB |
1325 | { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ |
1326 | { "twl5030", 0 }, /* T2 updated */ | |
1920a61e | 1327 | { "twl5031", TWL5031 }, /* TWL5030 updated */ |
dad759ff DB |
1328 | { "tps65950", 0 }, /* catalog version of twl5030 */ |
1329 | { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ | |
1330 | { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ | |
59dead5a OD |
1331 | { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED |
1332 | and vibrator. Charger in USB module*/ | |
e8deb28c | 1333 | { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ |
521d8ec3 | 1334 | { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ |
a603a7fa DB |
1335 | { /* end of list */ }, |
1336 | }; | |
fc7b92fc | 1337 | MODULE_DEVICE_TABLE(i2c, twl_ids); |
a603a7fa DB |
1338 | |
1339 | /* One Client Driver , 4 Clients */ | |
fc7b92fc | 1340 | static struct i2c_driver twl_driver = { |
a603a7fa | 1341 | .driver.name = DRIVER_NAME, |
fc7b92fc B |
1342 | .id_table = twl_ids, |
1343 | .probe = twl_probe, | |
1344 | .remove = twl_remove, | |
a603a7fa DB |
1345 | }; |
1346 | ||
fc7b92fc | 1347 | static int __init twl_init(void) |
a603a7fa | 1348 | { |
fc7b92fc | 1349 | return i2c_add_driver(&twl_driver); |
a603a7fa | 1350 | } |
fc7b92fc | 1351 | subsys_initcall(twl_init); |
a603a7fa | 1352 | |
fc7b92fc | 1353 | static void __exit twl_exit(void) |
a603a7fa | 1354 | { |
fc7b92fc | 1355 | i2c_del_driver(&twl_driver); |
a603a7fa | 1356 | } |
fc7b92fc | 1357 | module_exit(twl_exit); |
a603a7fa DB |
1358 | |
1359 | MODULE_AUTHOR("Texas Instruments, Inc."); | |
fc7b92fc | 1360 | MODULE_DESCRIPTION("I2C Core interface for TWL"); |
a603a7fa | 1361 | MODULE_LICENSE("GPL"); |