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 DB |
34 | #include <linux/platform_device.h> |
35 | #include <linux/clk.h> | |
a30d46c0 | 36 | #include <linux/err.h> |
aeb5032b BC |
37 | #include <linux/device.h> |
38 | #include <linux/of.h> | |
39 | #include <linux/of_irq.h> | |
40 | #include <linux/of_platform.h> | |
e7cc3aca | 41 | #include <linux/irq.h> |
aeb5032b | 42 | #include <linux/irqdomain.h> |
a603a7fa | 43 | |
dad759ff DB |
44 | #include <linux/regulator/machine.h> |
45 | ||
a603a7fa | 46 | #include <linux/i2c.h> |
b07682b6 | 47 | #include <linux/i2c/twl.h> |
a603a7fa | 48 | |
1b8f333f | 49 | #include "twl-core.h" |
a603a7fa DB |
50 | |
51 | /* | |
52 | * The TWL4030 "Triton 2" is one of a family of a multi-function "Power | |
53 | * Management and System Companion Device" chips originally designed for | |
54 | * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, | |
55 | * often at around 3 Mbit/sec, including for interrupt handling. | |
56 | * | |
57 | * This driver core provides genirq support for the interrupts emitted, | |
58 | * by the various modules, and exports register access primitives. | |
59 | * | |
60 | * FIXME this driver currently requires use of the first interrupt line | |
61 | * (and associated registers). | |
62 | */ | |
63 | ||
fc7b92fc | 64 | #define DRIVER_NAME "twl" |
a603a7fa | 65 | |
a603a7fa DB |
66 | #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE) |
67 | #define twl_has_keypad() true | |
68 | #else | |
69 | #define twl_has_keypad() false | |
70 | #endif | |
71 | ||
72 | #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE) | |
73 | #define twl_has_gpio() true | |
74 | #else | |
75 | #define twl_has_gpio() false | |
76 | #endif | |
77 | ||
dad759ff DB |
78 | #if defined(CONFIG_REGULATOR_TWL4030) \ |
79 | || defined(CONFIG_REGULATOR_TWL4030_MODULE) | |
80 | #define twl_has_regulator() true | |
81 | #else | |
82 | #define twl_has_regulator() false | |
83 | #endif | |
84 | ||
a603a7fa DB |
85 | #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE) |
86 | #define twl_has_madc() true | |
87 | #else | |
88 | #define twl_has_madc() false | |
89 | #endif | |
90 | ||
ebf0bd36 AK |
91 | #ifdef CONFIG_TWL4030_POWER |
92 | #define twl_has_power() true | |
93 | #else | |
94 | #define twl_has_power() false | |
95 | #endif | |
96 | ||
a603a7fa DB |
97 | #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE) |
98 | #define twl_has_rtc() true | |
99 | #else | |
100 | #define twl_has_rtc() false | |
101 | #endif | |
102 | ||
e70357e3 HH |
103 | #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\ |
104 | defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE) | |
a603a7fa DB |
105 | #define twl_has_usb() true |
106 | #else | |
107 | #define twl_has_usb() false | |
108 | #endif | |
109 | ||
80e45b1e TK |
110 | #if defined(CONFIG_TWL4030_WATCHDOG) || \ |
111 | defined(CONFIG_TWL4030_WATCHDOG_MODULE) | |
112 | #define twl_has_watchdog() true | |
113 | #else | |
114 | #define twl_has_watchdog() false | |
115 | #endif | |
a603a7fa | 116 | |
364cedb2 PU |
117 | #if defined(CONFIG_MFD_TWL4030_AUDIO) || \ |
118 | defined(CONFIG_MFD_TWL4030_AUDIO_MODULE) | |
0b83ddeb PU |
119 | #define twl_has_codec() true |
120 | #else | |
121 | #define twl_has_codec() false | |
122 | #endif | |
123 | ||
11c39c4b GI |
124 | #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE) |
125 | #define twl_has_bci() true | |
126 | #else | |
127 | #define twl_has_bci() false | |
128 | #endif | |
129 | ||
a603a7fa DB |
130 | /* Triton Core internal information (BEGIN) */ |
131 | ||
132 | /* Last - for index max*/ | |
133 | #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG | |
134 | ||
fc7b92fc | 135 | #define TWL_NUM_SLAVES 4 |
a603a7fa | 136 | |
9c3664dd | 137 | #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \ |
14e5c82c | 138 | || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE) |
9c3664dd FB |
139 | #define twl_has_pwrbutton() true |
140 | #else | |
141 | #define twl_has_pwrbutton() false | |
142 | #endif | |
a603a7fa | 143 | |
fc7b92fc B |
144 | #define SUB_CHIP_ID0 0 |
145 | #define SUB_CHIP_ID1 1 | |
146 | #define SUB_CHIP_ID2 2 | |
147 | #define SUB_CHIP_ID3 3 | |
364cedb2 | 148 | #define SUB_CHIP_ID_INVAL 0xff |
fc7b92fc B |
149 | |
150 | #define TWL_MODULE_LAST TWL4030_MODULE_LAST | |
151 | ||
a603a7fa DB |
152 | /* Base Address defns for twl4030_map[] */ |
153 | ||
154 | /* subchip/slave 0 - USB ID */ | |
155 | #define TWL4030_BASEADD_USB 0x0000 | |
156 | ||
157 | /* subchip/slave 1 - AUD ID */ | |
158 | #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 | |
159 | #define TWL4030_BASEADD_GPIO 0x0098 | |
160 | #define TWL4030_BASEADD_INTBR 0x0085 | |
161 | #define TWL4030_BASEADD_PIH 0x0080 | |
162 | #define TWL4030_BASEADD_TEST 0x004C | |
163 | ||
164 | /* subchip/slave 2 - AUX ID */ | |
165 | #define TWL4030_BASEADD_INTERRUPTS 0x00B9 | |
166 | #define TWL4030_BASEADD_LED 0x00EE | |
167 | #define TWL4030_BASEADD_MADC 0x0000 | |
168 | #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 | |
169 | #define TWL4030_BASEADD_PRECHARGE 0x00AA | |
170 | #define TWL4030_BASEADD_PWM0 0x00F8 | |
171 | #define TWL4030_BASEADD_PWM1 0x00FB | |
172 | #define TWL4030_BASEADD_PWMA 0x00EF | |
173 | #define TWL4030_BASEADD_PWMB 0x00F1 | |
174 | #define TWL4030_BASEADD_KEYPAD 0x00D2 | |
175 | ||
1920a61e IK |
176 | #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ |
177 | #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's | |
178 | one */ | |
179 | ||
a603a7fa DB |
180 | /* subchip/slave 3 - POWER ID */ |
181 | #define TWL4030_BASEADD_BACKUP 0x0014 | |
182 | #define TWL4030_BASEADD_INT 0x002E | |
183 | #define TWL4030_BASEADD_PM_MASTER 0x0036 | |
184 | #define TWL4030_BASEADD_PM_RECEIVER 0x005B | |
185 | #define TWL4030_BASEADD_RTC 0x001C | |
186 | #define TWL4030_BASEADD_SECURED_REG 0x0000 | |
187 | ||
188 | /* Triton Core internal information (END) */ | |
189 | ||
190 | ||
e8deb28c B |
191 | /* subchip/slave 0 0x48 - POWER */ |
192 | #define TWL6030_BASEADD_RTC 0x0000 | |
193 | #define TWL6030_BASEADD_MEM 0x0017 | |
194 | #define TWL6030_BASEADD_PM_MASTER 0x001F | |
195 | #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ | |
196 | #define TWL6030_BASEADD_PM_MISC 0x00E2 | |
197 | #define TWL6030_BASEADD_PM_PUPD 0x00F0 | |
198 | ||
199 | /* subchip/slave 1 0x49 - FEATURE */ | |
200 | #define TWL6030_BASEADD_USB 0x0000 | |
201 | #define TWL6030_BASEADD_GPADC_CTRL 0x002E | |
202 | #define TWL6030_BASEADD_AUX 0x0090 | |
203 | #define TWL6030_BASEADD_PWM 0x00BA | |
204 | #define TWL6030_BASEADD_GASGAUGE 0x00C0 | |
205 | #define TWL6030_BASEADD_PIH 0x00D0 | |
206 | #define TWL6030_BASEADD_CHARGER 0x00E0 | |
521d8ec3 | 207 | #define TWL6025_BASEADD_CHARGER 0x00DA |
e8deb28c B |
208 | |
209 | /* subchip/slave 2 0x4A - DFT */ | |
210 | #define TWL6030_BASEADD_DIEID 0x00C0 | |
211 | ||
212 | /* subchip/slave 3 0x4B - AUDIO */ | |
213 | #define TWL6030_BASEADD_AUDIO 0x0000 | |
214 | #define TWL6030_BASEADD_RSV 0x0000 | |
fa0d9762 | 215 | #define TWL6030_BASEADD_ZERO 0x0000 |
e8deb28c | 216 | |
a603a7fa DB |
217 | /* Few power values */ |
218 | #define R_CFG_BOOT 0x05 | |
a603a7fa DB |
219 | |
220 | /* some fields in R_CFG_BOOT */ | |
221 | #define HFCLK_FREQ_19p2_MHZ (1 << 0) | |
222 | #define HFCLK_FREQ_26_MHZ (2 << 0) | |
223 | #define HFCLK_FREQ_38p4_MHZ (3 << 0) | |
224 | #define HIGH_PERF_SQ (1 << 3) | |
38a68496 | 225 | #define CK32K_LOWPWR_EN (1 << 7) |
a603a7fa | 226 | |
a603a7fa DB |
227 | /*----------------------------------------------------------------------*/ |
228 | ||
a603a7fa DB |
229 | /* is driver active, bound to a chip? */ |
230 | static bool inuse; | |
231 | ||
ca972d13 L |
232 | /* TWL IDCODE Register value */ |
233 | static u32 twl_idcode; | |
234 | ||
e8deb28c B |
235 | static unsigned int twl_id; |
236 | unsigned int twl_rev(void) | |
237 | { | |
238 | return twl_id; | |
239 | } | |
240 | EXPORT_SYMBOL(twl_rev); | |
241 | ||
242 | /* Structure for each TWL4030/TWL6030 Slave */ | |
fc7b92fc | 243 | struct twl_client { |
a603a7fa DB |
244 | struct i2c_client *client; |
245 | u8 address; | |
246 | ||
247 | /* max numb of i2c_msg required is for read =2 */ | |
248 | struct i2c_msg xfer_msg[2]; | |
249 | ||
250 | /* To lock access to xfer_msg */ | |
251 | struct mutex xfer_lock; | |
252 | }; | |
253 | ||
fc7b92fc | 254 | static struct twl_client twl_modules[TWL_NUM_SLAVES]; |
a603a7fa | 255 | |
a603a7fa | 256 | /* mapping the module id to slave id and base address */ |
fc7b92fc | 257 | struct twl_mapping { |
a603a7fa DB |
258 | unsigned char sid; /* Slave ID */ |
259 | unsigned char base; /* base address */ | |
260 | }; | |
2cfcce18 | 261 | static struct twl_mapping *twl_map; |
a603a7fa | 262 | |
fc7b92fc | 263 | static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { |
a603a7fa DB |
264 | /* |
265 | * NOTE: don't change this table without updating the | |
e8deb28c | 266 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
a603a7fa DB |
267 | * so they continue to match the order in this table. |
268 | */ | |
269 | ||
270 | { 0, TWL4030_BASEADD_USB }, | |
271 | ||
272 | { 1, TWL4030_BASEADD_AUDIO_VOICE }, | |
273 | { 1, TWL4030_BASEADD_GPIO }, | |
274 | { 1, TWL4030_BASEADD_INTBR }, | |
275 | { 1, TWL4030_BASEADD_PIH }, | |
276 | { 1, TWL4030_BASEADD_TEST }, | |
277 | ||
278 | { 2, TWL4030_BASEADD_KEYPAD }, | |
279 | { 2, TWL4030_BASEADD_MADC }, | |
280 | { 2, TWL4030_BASEADD_INTERRUPTS }, | |
281 | { 2, TWL4030_BASEADD_LED }, | |
282 | { 2, TWL4030_BASEADD_MAIN_CHARGE }, | |
283 | { 2, TWL4030_BASEADD_PRECHARGE }, | |
284 | { 2, TWL4030_BASEADD_PWM0 }, | |
285 | { 2, TWL4030_BASEADD_PWM1 }, | |
286 | { 2, TWL4030_BASEADD_PWMA }, | |
287 | { 2, TWL4030_BASEADD_PWMB }, | |
1920a61e IK |
288 | { 2, TWL5031_BASEADD_ACCESSORY }, |
289 | { 2, TWL5031_BASEADD_INTERRUPTS }, | |
a603a7fa DB |
290 | |
291 | { 3, TWL4030_BASEADD_BACKUP }, | |
292 | { 3, TWL4030_BASEADD_INT }, | |
293 | { 3, TWL4030_BASEADD_PM_MASTER }, | |
294 | { 3, TWL4030_BASEADD_PM_RECEIVER }, | |
295 | { 3, TWL4030_BASEADD_RTC }, | |
296 | { 3, TWL4030_BASEADD_SECURED_REG }, | |
297 | }; | |
298 | ||
e8deb28c B |
299 | static struct twl_mapping twl6030_map[] = { |
300 | /* | |
301 | * NOTE: don't change this table without updating the | |
302 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* | |
303 | * so they continue to match the order in this table. | |
304 | */ | |
305 | { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, | |
364cedb2 | 306 | { SUB_CHIP_ID_INVAL, TWL6030_BASEADD_AUDIO }, |
e8deb28c B |
307 | { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, |
308 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
309 | { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, | |
310 | ||
311 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
312 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
313 | { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, | |
314 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
315 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
316 | ||
317 | { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, | |
318 | { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, | |
319 | { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, | |
fa0d9762 B |
320 | { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, |
321 | { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, | |
e8deb28c | 322 | |
fa0d9762 B |
323 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, |
324 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, | |
e8deb28c B |
325 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
326 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
327 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
328 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, | |
329 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, | |
330 | ||
331 | { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, | |
332 | { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, | |
521d8ec3 | 333 | { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, |
e8deb28c B |
334 | }; |
335 | ||
a603a7fa DB |
336 | /*----------------------------------------------------------------------*/ |
337 | ||
a603a7fa DB |
338 | /* Exported Functions */ |
339 | ||
340 | /** | |
fc7b92fc | 341 | * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
342 | * @mod_no: module number |
343 | * @value: an array of num_bytes+1 containing data to write | |
344 | * @reg: register address (just offset will do) | |
345 | * @num_bytes: number of bytes to transfer | |
346 | * | |
347 | * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and | |
348 | * valid data starts at Offset 1. | |
349 | * | |
350 | * Returns the result of operation - 0 is success | |
351 | */ | |
fc7b92fc | 352 | int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
353 | { |
354 | int ret; | |
355 | int sid; | |
fc7b92fc | 356 | struct twl_client *twl; |
a603a7fa DB |
357 | struct i2c_msg *msg; |
358 | ||
fc7b92fc | 359 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
a603a7fa DB |
360 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
361 | return -EPERM; | |
362 | } | |
a603a7fa | 363 | if (unlikely(!inuse)) { |
8653be1a | 364 | pr_err("%s: not initialized\n", DRIVER_NAME); |
a603a7fa DB |
365 | return -EPERM; |
366 | } | |
8653be1a | 367 | sid = twl_map[mod_no].sid; |
364cedb2 PU |
368 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
369 | pr_err("%s: module %d is not part of the pmic\n", | |
370 | DRIVER_NAME, mod_no); | |
371 | return -EINVAL; | |
372 | } | |
8653be1a IY |
373 | twl = &twl_modules[sid]; |
374 | ||
a603a7fa DB |
375 | mutex_lock(&twl->xfer_lock); |
376 | /* | |
377 | * [MSG1]: fill the register address data | |
378 | * fill the data Tx buffer | |
379 | */ | |
380 | msg = &twl->xfer_msg[0]; | |
381 | msg->addr = twl->address; | |
382 | msg->len = num_bytes + 1; | |
383 | msg->flags = 0; | |
384 | msg->buf = value; | |
385 | /* over write the first byte of buffer with the register address */ | |
e8deb28c | 386 | *value = twl_map[mod_no].base + reg; |
a603a7fa DB |
387 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); |
388 | mutex_unlock(&twl->xfer_lock); | |
389 | ||
147e0847 AK |
390 | /* i2c_transfer returns number of messages transferred */ |
391 | if (ret != 1) { | |
392 | pr_err("%s: i2c_write failed to transfer all messages\n", | |
393 | DRIVER_NAME); | |
394 | if (ret < 0) | |
395 | return ret; | |
396 | else | |
397 | return -EIO; | |
398 | } else { | |
399 | return 0; | |
400 | } | |
a603a7fa | 401 | } |
fc7b92fc | 402 | EXPORT_SYMBOL(twl_i2c_write); |
a603a7fa DB |
403 | |
404 | /** | |
fc7b92fc | 405 | * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
406 | * @mod_no: module number |
407 | * @value: an array of num_bytes containing data to be read | |
408 | * @reg: register address (just offset will do) | |
409 | * @num_bytes: number of bytes to transfer | |
410 | * | |
411 | * Returns result of operation - num_bytes is success else failure. | |
412 | */ | |
fc7b92fc | 413 | int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
414 | { |
415 | int ret; | |
416 | u8 val; | |
417 | int sid; | |
fc7b92fc | 418 | struct twl_client *twl; |
a603a7fa DB |
419 | struct i2c_msg *msg; |
420 | ||
fc7b92fc | 421 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
a603a7fa DB |
422 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
423 | return -EPERM; | |
424 | } | |
a603a7fa | 425 | if (unlikely(!inuse)) { |
8653be1a | 426 | pr_err("%s: not initialized\n", DRIVER_NAME); |
a603a7fa DB |
427 | return -EPERM; |
428 | } | |
8653be1a | 429 | sid = twl_map[mod_no].sid; |
364cedb2 PU |
430 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
431 | pr_err("%s: module %d is not part of the pmic\n", | |
432 | DRIVER_NAME, mod_no); | |
433 | return -EINVAL; | |
434 | } | |
8653be1a IY |
435 | twl = &twl_modules[sid]; |
436 | ||
a603a7fa DB |
437 | mutex_lock(&twl->xfer_lock); |
438 | /* [MSG1] fill the register address data */ | |
439 | msg = &twl->xfer_msg[0]; | |
440 | msg->addr = twl->address; | |
441 | msg->len = 1; | |
442 | msg->flags = 0; /* Read the register value */ | |
e8deb28c | 443 | val = twl_map[mod_no].base + reg; |
a603a7fa DB |
444 | msg->buf = &val; |
445 | /* [MSG2] fill the data rx buffer */ | |
446 | msg = &twl->xfer_msg[1]; | |
447 | msg->addr = twl->address; | |
448 | msg->flags = I2C_M_RD; /* Read the register value */ | |
449 | msg->len = num_bytes; /* only n bytes */ | |
450 | msg->buf = value; | |
451 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); | |
452 | mutex_unlock(&twl->xfer_lock); | |
453 | ||
147e0847 AK |
454 | /* i2c_transfer returns number of messages transferred */ |
455 | if (ret != 2) { | |
456 | pr_err("%s: i2c_read failed to transfer all messages\n", | |
457 | DRIVER_NAME); | |
458 | if (ret < 0) | |
459 | return ret; | |
460 | else | |
461 | return -EIO; | |
462 | } else { | |
463 | return 0; | |
464 | } | |
a603a7fa | 465 | } |
fc7b92fc | 466 | EXPORT_SYMBOL(twl_i2c_read); |
a603a7fa DB |
467 | |
468 | /** | |
fc7b92fc | 469 | * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
470 | * @mod_no: module number |
471 | * @value: the value to be written 8 bit | |
472 | * @reg: register address (just offset will do) | |
473 | * | |
474 | * Returns result of operation - 0 is success | |
475 | */ | |
fc7b92fc | 476 | int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) |
a603a7fa DB |
477 | { |
478 | ||
479 | /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ | |
480 | u8 temp_buffer[2] = { 0 }; | |
481 | /* offset 1 contains the data */ | |
482 | temp_buffer[1] = value; | |
fc7b92fc | 483 | return twl_i2c_write(mod_no, temp_buffer, reg, 1); |
a603a7fa | 484 | } |
fc7b92fc | 485 | EXPORT_SYMBOL(twl_i2c_write_u8); |
a603a7fa DB |
486 | |
487 | /** | |
fc7b92fc | 488 | * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
489 | * @mod_no: module number |
490 | * @value: the value read 8 bit | |
491 | * @reg: register address (just offset will do) | |
492 | * | |
493 | * Returns result of operation - 0 is success | |
494 | */ | |
fc7b92fc | 495 | int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) |
a603a7fa | 496 | { |
fc7b92fc | 497 | return twl_i2c_read(mod_no, value, reg, 1); |
a603a7fa | 498 | } |
fc7b92fc | 499 | EXPORT_SYMBOL(twl_i2c_read_u8); |
a603a7fa DB |
500 | |
501 | /*----------------------------------------------------------------------*/ | |
502 | ||
ca972d13 L |
503 | /** |
504 | * twl_read_idcode_register - API to read the IDCODE register. | |
505 | * | |
506 | * Unlocks the IDCODE register and read the 32 bit value. | |
507 | */ | |
508 | static int twl_read_idcode_register(void) | |
509 | { | |
510 | int err; | |
511 | ||
512 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, | |
513 | REG_UNLOCK_TEST_REG); | |
514 | if (err) { | |
515 | pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); | |
516 | goto fail; | |
517 | } | |
518 | ||
519 | err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), | |
520 | REG_IDCODE_7_0, 4); | |
521 | if (err) { | |
522 | pr_err("TWL4030: unable to read IDCODE -%d\n", err); | |
523 | goto fail; | |
524 | } | |
525 | ||
526 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); | |
527 | if (err) | |
528 | pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); | |
529 | fail: | |
530 | return err; | |
531 | } | |
532 | ||
533 | /** | |
534 | * twl_get_type - API to get TWL Si type. | |
535 | * | |
536 | * Api to get the TWL Si type from IDCODE value. | |
537 | */ | |
538 | int twl_get_type(void) | |
539 | { | |
540 | return TWL_SIL_TYPE(twl_idcode); | |
541 | } | |
542 | EXPORT_SYMBOL_GPL(twl_get_type); | |
543 | ||
544 | /** | |
545 | * twl_get_version - API to get TWL Si version. | |
546 | * | |
547 | * Api to get the TWL Si version from IDCODE value. | |
548 | */ | |
549 | int twl_get_version(void) | |
550 | { | |
551 | return TWL_SIL_REV(twl_idcode); | |
552 | } | |
553 | EXPORT_SYMBOL_GPL(twl_get_version); | |
554 | ||
dad759ff DB |
555 | static struct device * |
556 | add_numbered_child(unsigned chip, const char *name, int num, | |
5725d66b DB |
557 | void *pdata, unsigned pdata_len, |
558 | bool can_wakeup, int irq0, int irq1) | |
a603a7fa | 559 | { |
5725d66b | 560 | struct platform_device *pdev; |
fc7b92fc | 561 | struct twl_client *twl = &twl_modules[chip]; |
5725d66b DB |
562 | int status; |
563 | ||
dad759ff | 564 | pdev = platform_device_alloc(name, num); |
5725d66b DB |
565 | if (!pdev) { |
566 | dev_dbg(&twl->client->dev, "can't alloc dev\n"); | |
567 | status = -ENOMEM; | |
568 | goto err; | |
569 | } | |
a603a7fa | 570 | |
5725d66b | 571 | pdev->dev.parent = &twl->client->dev; |
a603a7fa | 572 | |
5725d66b DB |
573 | if (pdata) { |
574 | status = platform_device_add_data(pdev, pdata, pdata_len); | |
575 | if (status < 0) { | |
576 | dev_dbg(&pdev->dev, "can't add platform_data\n"); | |
a603a7fa DB |
577 | goto err; |
578 | } | |
5725d66b | 579 | } |
a603a7fa | 580 | |
5725d66b DB |
581 | if (irq0) { |
582 | struct resource r[2] = { | |
583 | { .start = irq0, .flags = IORESOURCE_IRQ, }, | |
584 | { .start = irq1, .flags = IORESOURCE_IRQ, }, | |
585 | }; | |
a603a7fa | 586 | |
5725d66b | 587 | status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); |
a603a7fa | 588 | if (status < 0) { |
5725d66b | 589 | dev_dbg(&pdev->dev, "can't add irqs\n"); |
a603a7fa DB |
590 | goto err; |
591 | } | |
592 | } | |
593 | ||
5725d66b | 594 | status = platform_device_add(pdev); |
17ffba6a N |
595 | if (status == 0) |
596 | device_init_wakeup(&pdev->dev, can_wakeup); | |
a603a7fa | 597 | |
5725d66b DB |
598 | err: |
599 | if (status < 0) { | |
600 | platform_device_put(pdev); | |
601 | dev_err(&twl->client->dev, "can't add %s dev\n", name); | |
602 | return ERR_PTR(status); | |
603 | } | |
604 | return &pdev->dev; | |
605 | } | |
a603a7fa | 606 | |
dad759ff DB |
607 | static inline struct device *add_child(unsigned chip, const char *name, |
608 | void *pdata, unsigned pdata_len, | |
609 | bool can_wakeup, int irq0, int irq1) | |
610 | { | |
611 | return add_numbered_child(chip, name, -1, pdata, pdata_len, | |
612 | can_wakeup, irq0, irq1); | |
613 | } | |
614 | ||
615 | static struct device * | |
616 | add_regulator_linked(int num, struct regulator_init_data *pdata, | |
617 | struct regulator_consumer_supply *consumers, | |
521d8ec3 | 618 | unsigned num_consumers, unsigned long features) |
dad759ff | 619 | { |
e8deb28c | 620 | unsigned sub_chip_id; |
63bfff4e TK |
621 | struct twl_regulator_driver_data drv_data; |
622 | ||
dad759ff DB |
623 | /* regulator framework demands init_data ... */ |
624 | if (!pdata) | |
625 | return NULL; | |
626 | ||
b73eac78 | 627 | if (consumers) { |
dad759ff DB |
628 | pdata->consumer_supplies = consumers; |
629 | pdata->num_consumer_supplies = num_consumers; | |
630 | } | |
631 | ||
63bfff4e TK |
632 | if (pdata->driver_data) { |
633 | /* If we have existing drv_data, just add the flags */ | |
634 | struct twl_regulator_driver_data *tmp; | |
635 | tmp = pdata->driver_data; | |
636 | tmp->features |= features; | |
637 | } else { | |
638 | /* add new driver data struct, used only during init */ | |
639 | drv_data.features = features; | |
640 | drv_data.set_voltage = NULL; | |
641 | drv_data.get_voltage = NULL; | |
642 | drv_data.data = NULL; | |
643 | pdata->driver_data = &drv_data; | |
644 | } | |
521d8ec3 | 645 | |
dad759ff | 646 | /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ |
e8deb28c B |
647 | sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; |
648 | return add_numbered_child(sub_chip_id, "twl_reg", num, | |
dad759ff DB |
649 | pdata, sizeof(*pdata), false, 0, 0); |
650 | } | |
651 | ||
652 | static struct device * | |
521d8ec3 GG |
653 | add_regulator(int num, struct regulator_init_data *pdata, |
654 | unsigned long features) | |
dad759ff | 655 | { |
521d8ec3 | 656 | return add_regulator_linked(num, pdata, NULL, 0, features); |
dad759ff DB |
657 | } |
658 | ||
5725d66b DB |
659 | /* |
660 | * NOTE: We know the first 8 IRQs after pdata->base_irq are | |
661 | * for the PIH, and the next are for the PWR_INT SIH, since | |
662 | * that's how twl_init_irq() sets things up. | |
663 | */ | |
a603a7fa | 664 | |
dad759ff | 665 | static int |
9e178620 FB |
666 | add_children(struct twl4030_platform_data *pdata, unsigned irq_base, |
667 | unsigned long features) | |
5725d66b DB |
668 | { |
669 | struct device *child; | |
e8deb28c | 670 | unsigned sub_chip_id; |
a603a7fa | 671 | |
5725d66b | 672 | if (twl_has_gpio() && pdata->gpio) { |
fc7b92fc | 673 | child = add_child(SUB_CHIP_ID1, "twl4030_gpio", |
5725d66b | 674 | pdata->gpio, sizeof(*pdata->gpio), |
9e178620 | 675 | false, irq_base + GPIO_INTR_OFFSET, 0); |
5725d66b DB |
676 | if (IS_ERR(child)) |
677 | return PTR_ERR(child); | |
a603a7fa DB |
678 | } |
679 | ||
680 | if (twl_has_keypad() && pdata->keypad) { | |
fc7b92fc | 681 | child = add_child(SUB_CHIP_ID2, "twl4030_keypad", |
5725d66b | 682 | pdata->keypad, sizeof(*pdata->keypad), |
9e178620 | 683 | true, irq_base + KEYPAD_INTR_OFFSET, 0); |
5725d66b DB |
684 | if (IS_ERR(child)) |
685 | return PTR_ERR(child); | |
a603a7fa DB |
686 | } |
687 | ||
688 | if (twl_has_madc() && pdata->madc) { | |
5725d66b DB |
689 | child = add_child(2, "twl4030_madc", |
690 | pdata->madc, sizeof(*pdata->madc), | |
9e178620 | 691 | true, irq_base + MADC_INTR_OFFSET, 0); |
5725d66b DB |
692 | if (IS_ERR(child)) |
693 | return PTR_ERR(child); | |
a603a7fa DB |
694 | } |
695 | ||
696 | if (twl_has_rtc()) { | |
a603a7fa | 697 | /* |
5725d66b | 698 | * REVISIT platform_data here currently might expose the |
a603a7fa | 699 | * "msecure" line ... but for now we just expect board |
5725d66b | 700 | * setup to tell the chip "it's always ok to SET_TIME". |
a603a7fa DB |
701 | * Eventually, Linux might become more aware of such |
702 | * HW security concerns, and "least privilege". | |
703 | */ | |
e8deb28c B |
704 | sub_chip_id = twl_map[TWL_MODULE_RTC].sid; |
705 | child = add_child(sub_chip_id, "twl_rtc", | |
5725d66b | 706 | NULL, 0, |
9e178620 | 707 | true, irq_base + RTC_INTR_OFFSET, 0); |
5725d66b DB |
708 | if (IS_ERR(child)) |
709 | return PTR_ERR(child); | |
a603a7fa DB |
710 | } |
711 | ||
9da66539 | 712 | if (twl_has_usb() && pdata->usb && twl_class_is_4030()) { |
f8ebdff0 RQ |
713 | |
714 | static struct regulator_consumer_supply usb1v5 = { | |
715 | .supply = "usb1v5", | |
716 | }; | |
717 | static struct regulator_consumer_supply usb1v8 = { | |
718 | .supply = "usb1v8", | |
719 | }; | |
ab37813f N |
720 | static struct regulator_consumer_supply usb3v1[] = { |
721 | { .supply = "usb3v1" }, | |
722 | { .supply = "bci3v1" }, | |
f8ebdff0 RQ |
723 | }; |
724 | ||
725 | /* First add the regulators so that they can be used by transceiver */ | |
726 | if (twl_has_regulator()) { | |
727 | /* this is a template that gets copied */ | |
728 | struct regulator_init_data usb_fixed = { | |
729 | .constraints.valid_modes_mask = | |
730 | REGULATOR_MODE_NORMAL | |
731 | | REGULATOR_MODE_STANDBY, | |
732 | .constraints.valid_ops_mask = | |
733 | REGULATOR_CHANGE_MODE | |
734 | | REGULATOR_CHANGE_STATUS, | |
735 | }; | |
736 | ||
737 | child = add_regulator_linked(TWL4030_REG_VUSB1V5, | |
521d8ec3 GG |
738 | &usb_fixed, &usb1v5, 1, |
739 | features); | |
f8ebdff0 RQ |
740 | if (IS_ERR(child)) |
741 | return PTR_ERR(child); | |
742 | ||
743 | child = add_regulator_linked(TWL4030_REG_VUSB1V8, | |
521d8ec3 GG |
744 | &usb_fixed, &usb1v8, 1, |
745 | features); | |
f8ebdff0 RQ |
746 | if (IS_ERR(child)) |
747 | return PTR_ERR(child); | |
748 | ||
749 | child = add_regulator_linked(TWL4030_REG_VUSB3V1, | |
ab37813f | 750 | &usb_fixed, usb3v1, 2, |
521d8ec3 | 751 | features); |
f8ebdff0 RQ |
752 | if (IS_ERR(child)) |
753 | return PTR_ERR(child); | |
754 | ||
755 | } | |
756 | ||
5725d66b DB |
757 | child = add_child(0, "twl4030_usb", |
758 | pdata->usb, sizeof(*pdata->usb), | |
759 | true, | |
760 | /* irq0 = USB_PRES, irq1 = USB */ | |
9e178620 FB |
761 | irq_base + USB_PRES_INTR_OFFSET, |
762 | irq_base + USB_INTR_OFFSET); | |
f8ebdff0 | 763 | |
5725d66b DB |
764 | if (IS_ERR(child)) |
765 | return PTR_ERR(child); | |
dad759ff DB |
766 | |
767 | /* we need to connect regulators to this transceiver */ | |
f8ebdff0 | 768 | if (twl_has_regulator() && child) { |
1b65fa84 MB |
769 | usb1v5.dev_name = dev_name(child); |
770 | usb1v8.dev_name = dev_name(child); | |
ab37813f | 771 | usb3v1[0].dev_name = dev_name(child); |
f8ebdff0 | 772 | } |
dad759ff | 773 | } |
e70357e3 HH |
774 | if (twl_has_usb() && pdata->usb && twl_class_is_6030()) { |
775 | ||
521d8ec3 GG |
776 | static struct regulator_consumer_supply usb3v3; |
777 | int regulator; | |
e70357e3 HH |
778 | |
779 | if (twl_has_regulator()) { | |
780 | /* this is a template that gets copied */ | |
781 | struct regulator_init_data usb_fixed = { | |
782 | .constraints.valid_modes_mask = | |
783 | REGULATOR_MODE_NORMAL | |
784 | | REGULATOR_MODE_STANDBY, | |
785 | .constraints.valid_ops_mask = | |
786 | REGULATOR_CHANGE_MODE | |
787 | | REGULATOR_CHANGE_STATUS, | |
788 | }; | |
789 | ||
521d8ec3 GG |
790 | if (features & TWL6025_SUBCLASS) { |
791 | usb3v3.supply = "ldousb"; | |
792 | regulator = TWL6025_REG_LDOUSB; | |
793 | } else { | |
794 | usb3v3.supply = "vusb"; | |
795 | regulator = TWL6030_REG_VUSB; | |
796 | } | |
797 | child = add_regulator_linked(regulator, &usb_fixed, | |
798 | &usb3v3, 1, | |
799 | features); | |
e70357e3 HH |
800 | if (IS_ERR(child)) |
801 | return PTR_ERR(child); | |
802 | } | |
803 | ||
521d8ec3 GG |
804 | pdata->usb->features = features; |
805 | ||
e70357e3 HH |
806 | child = add_child(0, "twl6030_usb", |
807 | pdata->usb, sizeof(*pdata->usb), | |
808 | true, | |
809 | /* irq1 = VBUS_PRES, irq0 = USB ID */ | |
9e178620 FB |
810 | irq_base + USBOTG_INTR_OFFSET, |
811 | irq_base + USB_PRES_INTR_OFFSET); | |
e70357e3 HH |
812 | |
813 | if (IS_ERR(child)) | |
814 | return PTR_ERR(child); | |
815 | /* we need to connect regulators to this transceiver */ | |
816 | if (twl_has_regulator() && child) | |
1b65fa84 | 817 | usb3v3.dev_name = dev_name(child); |
521d8ec3 GG |
818 | } else if (twl_has_regulator() && twl_class_is_6030()) { |
819 | if (features & TWL6025_SUBCLASS) | |
820 | child = add_regulator(TWL6025_REG_LDOUSB, | |
821 | pdata->ldousb, features); | |
822 | else | |
823 | child = add_regulator(TWL6030_REG_VUSB, | |
824 | pdata->vusb, features); | |
e70357e3 | 825 | |
521d8ec3 GG |
826 | if (IS_ERR(child)) |
827 | return PTR_ERR(child); | |
e70357e3 | 828 | } |
dad759ff | 829 | |
153617fd | 830 | if (twl_has_watchdog() && twl_class_is_4030()) { |
80e45b1e TK |
831 | child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); |
832 | if (IS_ERR(child)) | |
9c3664dd FB |
833 | return PTR_ERR(child); |
834 | } | |
835 | ||
153617fd | 836 | if (twl_has_pwrbutton() && twl_class_is_4030()) { |
9c3664dd | 837 | child = add_child(1, "twl4030_pwrbutton", |
9e178620 | 838 | NULL, 0, true, irq_base + 8 + 0, 0); |
9c3664dd | 839 | if (IS_ERR(child)) |
80e45b1e TK |
840 | return PTR_ERR(child); |
841 | } | |
842 | ||
4ae6df5e | 843 | if (twl_has_codec() && pdata->audio && twl_class_is_4030()) { |
d62abe56 | 844 | sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; |
f0fba2ad | 845 | child = add_child(sub_chip_id, "twl4030-audio", |
4ae6df5e | 846 | pdata->audio, sizeof(*pdata->audio), |
d62abe56 MLC |
847 | false, 0, 0); |
848 | if (IS_ERR(child)) | |
849 | return PTR_ERR(child); | |
850 | } | |
851 | ||
9da66539 RN |
852 | /* twl4030 regulators */ |
853 | if (twl_has_regulator() && twl_class_is_4030()) { | |
521d8ec3 GG |
854 | child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, |
855 | features); | |
dad759ff DB |
856 | if (IS_ERR(child)) |
857 | return PTR_ERR(child); | |
ab4abe05 | 858 | |
521d8ec3 GG |
859 | child = add_regulator(TWL4030_REG_VIO, pdata->vio, |
860 | features); | |
ab4abe05 JKS |
861 | if (IS_ERR(child)) |
862 | return PTR_ERR(child); | |
863 | ||
521d8ec3 GG |
864 | child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, |
865 | features); | |
ab4abe05 JKS |
866 | if (IS_ERR(child)) |
867 | return PTR_ERR(child); | |
868 | ||
521d8ec3 GG |
869 | child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, |
870 | features); | |
ab4abe05 JKS |
871 | if (IS_ERR(child)) |
872 | return PTR_ERR(child); | |
dad759ff | 873 | |
521d8ec3 GG |
874 | child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, |
875 | features); | |
dad759ff DB |
876 | if (IS_ERR(child)) |
877 | return PTR_ERR(child); | |
878 | ||
521d8ec3 GG |
879 | child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, |
880 | features); | |
dad759ff DB |
881 | if (IS_ERR(child)) |
882 | return PTR_ERR(child); | |
883 | ||
884 | child = add_regulator((features & TWL4030_VAUX2) | |
885 | ? TWL4030_REG_VAUX2_4030 | |
886 | : TWL4030_REG_VAUX2, | |
521d8ec3 | 887 | pdata->vaux2, features); |
dad759ff DB |
888 | if (IS_ERR(child)) |
889 | return PTR_ERR(child); | |
ab4abe05 | 890 | |
521d8ec3 GG |
891 | child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, |
892 | features); | |
ab4abe05 JKS |
893 | if (IS_ERR(child)) |
894 | return PTR_ERR(child); | |
895 | ||
521d8ec3 GG |
896 | child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, |
897 | features); | |
ab4abe05 JKS |
898 | if (IS_ERR(child)) |
899 | return PTR_ERR(child); | |
900 | ||
521d8ec3 GG |
901 | child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, |
902 | features); | |
ab4abe05 JKS |
903 | if (IS_ERR(child)) |
904 | return PTR_ERR(child); | |
dad759ff DB |
905 | } |
906 | ||
dad759ff | 907 | /* maybe add LDOs that are omitted on cost-reduced parts */ |
9da66539 RN |
908 | if (twl_has_regulator() && !(features & TPS_SUBSET) |
909 | && twl_class_is_4030()) { | |
521d8ec3 GG |
910 | child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, |
911 | features); | |
dad759ff DB |
912 | if (IS_ERR(child)) |
913 | return PTR_ERR(child); | |
dad759ff | 914 | |
521d8ec3 GG |
915 | child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, |
916 | features); | |
dad759ff DB |
917 | if (IS_ERR(child)) |
918 | return PTR_ERR(child); | |
919 | ||
521d8ec3 GG |
920 | child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, |
921 | features); | |
dad759ff DB |
922 | if (IS_ERR(child)) |
923 | return PTR_ERR(child); | |
924 | ||
521d8ec3 GG |
925 | child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, |
926 | features); | |
dad759ff DB |
927 | if (IS_ERR(child)) |
928 | return PTR_ERR(child); | |
929 | ||
521d8ec3 GG |
930 | child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, |
931 | features); | |
dad759ff DB |
932 | if (IS_ERR(child)) |
933 | return PTR_ERR(child); | |
934 | ||
521d8ec3 GG |
935 | child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, |
936 | features); | |
dad759ff DB |
937 | if (IS_ERR(child)) |
938 | return PTR_ERR(child); | |
a603a7fa DB |
939 | } |
940 | ||
9da66539 | 941 | /* twl6030 regulators */ |
521d8ec3 GG |
942 | if (twl_has_regulator() && twl_class_is_6030() && |
943 | !(features & TWL6025_SUBCLASS)) { | |
34a38440 TK |
944 | child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, |
945 | features); | |
946 | if (IS_ERR(child)) | |
947 | return PTR_ERR(child); | |
948 | ||
949 | child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, | |
950 | features); | |
951 | if (IS_ERR(child)) | |
952 | return PTR_ERR(child); | |
953 | ||
954 | child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, | |
955 | features); | |
956 | if (IS_ERR(child)) | |
957 | return PTR_ERR(child); | |
958 | ||
46eda3e9 PU |
959 | child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, |
960 | features); | |
961 | if (IS_ERR(child)) | |
962 | return PTR_ERR(child); | |
963 | ||
964 | child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, | |
965 | features); | |
966 | if (IS_ERR(child)) | |
967 | return PTR_ERR(child); | |
968 | ||
521d8ec3 GG |
969 | child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, |
970 | features); | |
971 | if (IS_ERR(child)) | |
972 | return PTR_ERR(child); | |
973 | ||
974 | child = add_regulator(TWL6030_REG_VPP, pdata->vpp, | |
975 | features); | |
976 | if (IS_ERR(child)) | |
977 | return PTR_ERR(child); | |
978 | ||
979 | child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, | |
980 | features); | |
981 | if (IS_ERR(child)) | |
982 | return PTR_ERR(child); | |
983 | ||
984 | child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, | |
985 | features); | |
986 | if (IS_ERR(child)) | |
987 | return PTR_ERR(child); | |
988 | ||
989 | child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, | |
990 | features); | |
991 | if (IS_ERR(child)) | |
992 | return PTR_ERR(child); | |
993 | ||
994 | child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, | |
995 | features); | |
996 | if (IS_ERR(child)) | |
997 | return PTR_ERR(child); | |
998 | ||
999 | child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, | |
1000 | features); | |
1001 | if (IS_ERR(child)) | |
1002 | return PTR_ERR(child); | |
1003 | ||
1004 | child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, | |
1005 | features); | |
1006 | if (IS_ERR(child)) | |
1007 | return PTR_ERR(child); | |
1008 | ||
1009 | child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, | |
1010 | features); | |
1011 | if (IS_ERR(child)) | |
1012 | return PTR_ERR(child); | |
1013 | } | |
1014 | ||
1015 | /* 6030 and 6025 share this regulator */ | |
9da66539 | 1016 | if (twl_has_regulator() && twl_class_is_6030()) { |
521d8ec3 GG |
1017 | child = add_regulator(TWL6030_REG_VANA, pdata->vana, |
1018 | features); | |
1019 | if (IS_ERR(child)) | |
1020 | return PTR_ERR(child); | |
1021 | } | |
1022 | ||
1023 | /* twl6025 regulators */ | |
1024 | if (twl_has_regulator() && twl_class_is_6030() && | |
1025 | (features & TWL6025_SUBCLASS)) { | |
1026 | child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, | |
1027 | features); | |
9da66539 RN |
1028 | if (IS_ERR(child)) |
1029 | return PTR_ERR(child); | |
1030 | ||
521d8ec3 GG |
1031 | child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, |
1032 | features); | |
9da66539 RN |
1033 | if (IS_ERR(child)) |
1034 | return PTR_ERR(child); | |
1035 | ||
521d8ec3 GG |
1036 | child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, |
1037 | features); | |
9da66539 RN |
1038 | if (IS_ERR(child)) |
1039 | return PTR_ERR(child); | |
1040 | ||
521d8ec3 GG |
1041 | child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, |
1042 | features); | |
9da66539 RN |
1043 | if (IS_ERR(child)) |
1044 | return PTR_ERR(child); | |
1045 | ||
521d8ec3 GG |
1046 | child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, |
1047 | features); | |
9da66539 RN |
1048 | if (IS_ERR(child)) |
1049 | return PTR_ERR(child); | |
1050 | ||
521d8ec3 GG |
1051 | child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, |
1052 | features); | |
9da66539 RN |
1053 | if (IS_ERR(child)) |
1054 | return PTR_ERR(child); | |
1055 | ||
521d8ec3 GG |
1056 | child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, |
1057 | features); | |
9da66539 RN |
1058 | if (IS_ERR(child)) |
1059 | return PTR_ERR(child); | |
1060 | ||
521d8ec3 GG |
1061 | child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, |
1062 | features); | |
9da66539 RN |
1063 | if (IS_ERR(child)) |
1064 | return PTR_ERR(child); | |
1065 | ||
521d8ec3 GG |
1066 | child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, |
1067 | features); | |
9da66539 RN |
1068 | if (IS_ERR(child)) |
1069 | return PTR_ERR(child); | |
8e6de4a3 | 1070 | |
521d8ec3 GG |
1071 | child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, |
1072 | features); | |
8e6de4a3 B |
1073 | if (IS_ERR(child)) |
1074 | return PTR_ERR(child); | |
521d8ec3 GG |
1075 | |
1076 | child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, | |
1077 | features); | |
1078 | if (IS_ERR(child)) | |
1079 | return PTR_ERR(child); | |
1080 | ||
9da66539 RN |
1081 | } |
1082 | ||
11c39c4b GI |
1083 | if (twl_has_bci() && pdata->bci && |
1084 | !(features & (TPS_SUBSET | TWL5031))) { | |
1085 | child = add_child(3, "twl4030_bci", | |
1086 | pdata->bci, sizeof(*pdata->bci), false, | |
1087 | /* irq0 = CHG_PRES, irq1 = BCI */ | |
9e178620 FB |
1088 | irq_base + BCI_PRES_INTR_OFFSET, |
1089 | irq_base + BCI_INTR_OFFSET); | |
11c39c4b GI |
1090 | if (IS_ERR(child)) |
1091 | return PTR_ERR(child); | |
1092 | } | |
1093 | ||
5725d66b | 1094 | return 0; |
a603a7fa DB |
1095 | } |
1096 | ||
1097 | /*----------------------------------------------------------------------*/ | |
1098 | ||
1099 | /* | |
1100 | * These three functions initialize the on-chip clock framework, | |
1101 | * letting it generate the right frequencies for USB, MADC, and | |
1102 | * other purposes. | |
1103 | */ | |
1104 | static inline int __init protect_pm_master(void) | |
1105 | { | |
1106 | int e = 0; | |
1107 | ||
49e6f87e FB |
1108 | e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, |
1109 | TWL4030_PM_MASTER_PROTECT_KEY); | |
a603a7fa DB |
1110 | return e; |
1111 | } | |
1112 | ||
1113 | static inline int __init unprotect_pm_master(void) | |
1114 | { | |
1115 | int e = 0; | |
1116 | ||
49e6f87e FB |
1117 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, |
1118 | TWL4030_PM_MASTER_KEY_CFG1, | |
1119 | TWL4030_PM_MASTER_PROTECT_KEY); | |
1120 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, | |
1121 | TWL4030_PM_MASTER_KEY_CFG2, | |
1122 | TWL4030_PM_MASTER_PROTECT_KEY); | |
1123 | ||
a603a7fa DB |
1124 | return e; |
1125 | } | |
1126 | ||
38a68496 IK |
1127 | static void clocks_init(struct device *dev, |
1128 | struct twl4030_clock_init_data *clock) | |
a603a7fa DB |
1129 | { |
1130 | int e = 0; | |
1131 | struct clk *osc; | |
1132 | u32 rate; | |
1133 | u8 ctrl = HFCLK_FREQ_26_MHZ; | |
1134 | ||
1135 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | |
1136 | if (cpu_is_omap2430()) | |
e6b50c8d | 1137 | osc = clk_get(dev, "osc_ck"); |
a603a7fa | 1138 | else |
e6b50c8d | 1139 | osc = clk_get(dev, "osc_sys_ck"); |
6354ab5c | 1140 | |
a603a7fa | 1141 | if (IS_ERR(osc)) { |
fc7b92fc | 1142 | printk(KERN_WARNING "Skipping twl internal clock init and " |
a603a7fa DB |
1143 | "using bootloader value (unknown osc rate)\n"); |
1144 | return; | |
1145 | } | |
1146 | ||
1147 | rate = clk_get_rate(osc); | |
1148 | clk_put(osc); | |
1149 | ||
6354ab5c SO |
1150 | #else |
1151 | /* REVISIT for non-OMAP systems, pass the clock rate from | |
1152 | * board init code, using platform_data. | |
1153 | */ | |
1154 | osc = ERR_PTR(-EIO); | |
1155 | ||
fc7b92fc | 1156 | printk(KERN_WARNING "Skipping twl internal clock init and " |
6354ab5c SO |
1157 | "using bootloader value (unknown osc rate)\n"); |
1158 | ||
1159 | return; | |
1160 | #endif | |
1161 | ||
a603a7fa DB |
1162 | switch (rate) { |
1163 | case 19200000: | |
1164 | ctrl = HFCLK_FREQ_19p2_MHZ; | |
1165 | break; | |
1166 | case 26000000: | |
1167 | ctrl = HFCLK_FREQ_26_MHZ; | |
1168 | break; | |
1169 | case 38400000: | |
1170 | ctrl = HFCLK_FREQ_38p4_MHZ; | |
1171 | break; | |
1172 | } | |
1173 | ||
1174 | ctrl |= HIGH_PERF_SQ; | |
38a68496 IK |
1175 | if (clock && clock->ck32k_lowpwr_enable) |
1176 | ctrl |= CK32K_LOWPWR_EN; | |
1177 | ||
a603a7fa DB |
1178 | e |= unprotect_pm_master(); |
1179 | /* effect->MADC+USB ck en */ | |
fc7b92fc | 1180 | e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); |
a603a7fa DB |
1181 | e |= protect_pm_master(); |
1182 | ||
1183 | if (e < 0) | |
1184 | pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); | |
1185 | } | |
1186 | ||
1187 | /*----------------------------------------------------------------------*/ | |
1188 | ||
a603a7fa | 1189 | |
fc7b92fc | 1190 | static int twl_remove(struct i2c_client *client) |
a603a7fa | 1191 | { |
364cedb2 | 1192 | unsigned i, num_slaves; |
a30d46c0 | 1193 | int status; |
a603a7fa | 1194 | |
364cedb2 | 1195 | if (twl_class_is_4030()) { |
e8deb28c | 1196 | status = twl4030_exit_irq(); |
364cedb2 PU |
1197 | num_slaves = TWL_NUM_SLAVES; |
1198 | } else { | |
e8deb28c | 1199 | status = twl6030_exit_irq(); |
364cedb2 PU |
1200 | num_slaves = TWL_NUM_SLAVES - 1; |
1201 | } | |
e8deb28c | 1202 | |
a30d46c0 DB |
1203 | if (status < 0) |
1204 | return status; | |
a603a7fa | 1205 | |
364cedb2 | 1206 | for (i = 0; i < num_slaves; i++) { |
fc7b92fc | 1207 | struct twl_client *twl = &twl_modules[i]; |
a603a7fa DB |
1208 | |
1209 | if (twl->client && twl->client != client) | |
1210 | i2c_unregister_device(twl->client); | |
fc7b92fc | 1211 | twl_modules[i].client = NULL; |
a603a7fa DB |
1212 | } |
1213 | inuse = false; | |
1214 | return 0; | |
1215 | } | |
1216 | ||
ec1a07b3 | 1217 | /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ |
5b9cecd6 | 1218 | static int __devinit |
fc7b92fc | 1219 | twl_probe(struct i2c_client *client, const struct i2c_device_id *id) |
a603a7fa | 1220 | { |
a603a7fa | 1221 | struct twl4030_platform_data *pdata = client->dev.platform_data; |
aeb5032b | 1222 | struct device_node *node = client->dev.of_node; |
ec1a07b3 BC |
1223 | int irq_base = 0; |
1224 | int status; | |
364cedb2 | 1225 | unsigned i, num_slaves; |
aeb5032b BC |
1226 | |
1227 | if (node && !pdata) { | |
1228 | /* | |
1229 | * XXX: Temporary pdata until the information is correctly | |
1230 | * retrieved by every TWL modules from DT. | |
1231 | */ | |
1232 | pdata = devm_kzalloc(&client->dev, | |
1233 | sizeof(struct twl4030_platform_data), | |
1234 | GFP_KERNEL); | |
1235 | if (!pdata) | |
1236 | return -ENOMEM; | |
1237 | } | |
a603a7fa DB |
1238 | |
1239 | if (!pdata) { | |
1240 | dev_dbg(&client->dev, "no platform data?\n"); | |
1241 | return -EINVAL; | |
1242 | } | |
1243 | ||
1244 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { | |
1245 | dev_dbg(&client->dev, "can't talk I2C?\n"); | |
1246 | return -EIO; | |
1247 | } | |
1248 | ||
a30d46c0 | 1249 | if (inuse) { |
a603a7fa DB |
1250 | dev_dbg(&client->dev, "driver is already in use\n"); |
1251 | return -EBUSY; | |
1252 | } | |
1253 | ||
364cedb2 PU |
1254 | if ((id->driver_data) & TWL6030_CLASS) { |
1255 | twl_id = TWL6030_CLASS_ID; | |
1256 | twl_map = &twl6030_map[0]; | |
1257 | num_slaves = TWL_NUM_SLAVES - 1; | |
1258 | } else { | |
1259 | twl_id = TWL4030_CLASS_ID; | |
1260 | twl_map = &twl4030_map[0]; | |
1261 | num_slaves = TWL_NUM_SLAVES; | |
1262 | } | |
1263 | ||
1264 | for (i = 0; i < num_slaves; i++) { | |
ec1a07b3 | 1265 | struct twl_client *twl = &twl_modules[i]; |
a603a7fa DB |
1266 | |
1267 | twl->address = client->addr + i; | |
ec1a07b3 | 1268 | if (i == 0) { |
a603a7fa | 1269 | twl->client = client; |
ec1a07b3 | 1270 | } else { |
a603a7fa DB |
1271 | twl->client = i2c_new_dummy(client->adapter, |
1272 | twl->address); | |
1273 | if (!twl->client) { | |
a8643430 | 1274 | dev_err(&client->dev, |
a603a7fa DB |
1275 | "can't attach client %d\n", i); |
1276 | status = -ENOMEM; | |
1277 | goto fail; | |
1278 | } | |
a603a7fa DB |
1279 | } |
1280 | mutex_init(&twl->xfer_lock); | |
1281 | } | |
ec1a07b3 | 1282 | |
a603a7fa DB |
1283 | inuse = true; |
1284 | ||
1285 | /* setup clock framework */ | |
38a68496 | 1286 | clocks_init(&client->dev, pdata->clock); |
a603a7fa | 1287 | |
ca972d13 L |
1288 | /* read TWL IDCODE Register */ |
1289 | if (twl_id == TWL4030_CLASS_ID) { | |
ec1a07b3 BC |
1290 | status = twl_read_idcode_register(); |
1291 | WARN(status < 0, "Error: reading twl_idcode register value\n"); | |
ca972d13 L |
1292 | } |
1293 | ||
ebf0bd36 AK |
1294 | /* load power event scripts */ |
1295 | if (twl_has_power() && pdata->power) | |
1296 | twl4030_power_init(pdata->power); | |
1297 | ||
a603a7fa | 1298 | /* Maybe init the T2 Interrupt subsystem */ |
9e178620 | 1299 | if (client->irq) { |
e8deb28c B |
1300 | if (twl_class_is_4030()) { |
1301 | twl4030_init_chip_irq(id->name); | |
78518ffa | 1302 | irq_base = twl4030_init_irq(&client->dev, client->irq); |
e8deb28c | 1303 | } else { |
78518ffa | 1304 | irq_base = twl6030_init_irq(&client->dev, client->irq); |
e8deb28c B |
1305 | } |
1306 | ||
78518ffa BC |
1307 | if (irq_base < 0) { |
1308 | status = irq_base; | |
a30d46c0 | 1309 | goto fail; |
78518ffa | 1310 | } |
a603a7fa DB |
1311 | } |
1312 | ||
ec1a07b3 BC |
1313 | /* |
1314 | * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. | |
a29aaf55 MS |
1315 | * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, |
1316 | * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. | |
1317 | */ | |
a29aaf55 | 1318 | if (twl_class_is_4030()) { |
ec1a07b3 BC |
1319 | u8 temp; |
1320 | ||
a29aaf55 MS |
1321 | twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); |
1322 | temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ | |
ec1a07b3 | 1323 | I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); |
a29aaf55 MS |
1324 | twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); |
1325 | } | |
1326 | ||
964dba28 | 1327 | status = -ENODEV; |
aeb5032b BC |
1328 | if (node) |
1329 | status = of_platform_populate(node, NULL, NULL, &client->dev); | |
964dba28 | 1330 | if (status) |
9e178620 | 1331 | status = add_children(pdata, irq_base, id->driver_data); |
aeb5032b | 1332 | |
a603a7fa DB |
1333 | fail: |
1334 | if (status < 0) | |
fc7b92fc | 1335 | twl_remove(client); |
ec1a07b3 | 1336 | |
a603a7fa DB |
1337 | return status; |
1338 | } | |
1339 | ||
fc7b92fc | 1340 | static const struct i2c_device_id twl_ids[] = { |
dad759ff DB |
1341 | { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ |
1342 | { "twl5030", 0 }, /* T2 updated */ | |
1920a61e | 1343 | { "twl5031", TWL5031 }, /* TWL5030 updated */ |
dad759ff DB |
1344 | { "tps65950", 0 }, /* catalog version of twl5030 */ |
1345 | { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ | |
1346 | { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ | |
59dead5a OD |
1347 | { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED |
1348 | and vibrator. Charger in USB module*/ | |
e8deb28c | 1349 | { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ |
521d8ec3 | 1350 | { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ |
a603a7fa DB |
1351 | { /* end of list */ }, |
1352 | }; | |
fc7b92fc | 1353 | MODULE_DEVICE_TABLE(i2c, twl_ids); |
a603a7fa DB |
1354 | |
1355 | /* One Client Driver , 4 Clients */ | |
fc7b92fc | 1356 | static struct i2c_driver twl_driver = { |
a603a7fa | 1357 | .driver.name = DRIVER_NAME, |
fc7b92fc B |
1358 | .id_table = twl_ids, |
1359 | .probe = twl_probe, | |
1360 | .remove = twl_remove, | |
a603a7fa DB |
1361 | }; |
1362 | ||
fc7b92fc | 1363 | static int __init twl_init(void) |
a603a7fa | 1364 | { |
fc7b92fc | 1365 | return i2c_add_driver(&twl_driver); |
a603a7fa | 1366 | } |
fc7b92fc | 1367 | subsys_initcall(twl_init); |
a603a7fa | 1368 | |
fc7b92fc | 1369 | static void __exit twl_exit(void) |
a603a7fa | 1370 | { |
fc7b92fc | 1371 | i2c_del_driver(&twl_driver); |
a603a7fa | 1372 | } |
fc7b92fc | 1373 | module_exit(twl_exit); |
a603a7fa DB |
1374 | |
1375 | MODULE_AUTHOR("Texas Instruments, Inc."); | |
fc7b92fc | 1376 | MODULE_DESCRIPTION("I2C Core interface for TWL"); |
a603a7fa | 1377 | MODULE_LICENSE("GPL"); |