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> | |
a603a7fa DB |
33 | #include <linux/platform_device.h> |
34 | #include <linux/clk.h> | |
a30d46c0 | 35 | #include <linux/err.h> |
a603a7fa | 36 | |
dad759ff DB |
37 | #include <linux/regulator/machine.h> |
38 | ||
a603a7fa | 39 | #include <linux/i2c.h> |
b07682b6 | 40 | #include <linux/i2c/twl.h> |
a603a7fa | 41 | |
a313d758 | 42 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) |
ce491cf8 | 43 | #include <plat/cpu.h> |
b29c06ae | 44 | #endif |
a603a7fa DB |
45 | |
46 | /* | |
47 | * The TWL4030 "Triton 2" is one of a family of a multi-function "Power | |
48 | * Management and System Companion Device" chips originally designed for | |
49 | * use in OMAP2 and OMAP 3 based systems. Its control interfaces use I2C, | |
50 | * often at around 3 Mbit/sec, including for interrupt handling. | |
51 | * | |
52 | * This driver core provides genirq support for the interrupts emitted, | |
53 | * by the various modules, and exports register access primitives. | |
54 | * | |
55 | * FIXME this driver currently requires use of the first interrupt line | |
56 | * (and associated registers). | |
57 | */ | |
58 | ||
fc7b92fc | 59 | #define DRIVER_NAME "twl" |
a603a7fa | 60 | |
a603a7fa DB |
61 | #if defined(CONFIG_KEYBOARD_TWL4030) || defined(CONFIG_KEYBOARD_TWL4030_MODULE) |
62 | #define twl_has_keypad() true | |
63 | #else | |
64 | #define twl_has_keypad() false | |
65 | #endif | |
66 | ||
67 | #if defined(CONFIG_GPIO_TWL4030) || defined(CONFIG_GPIO_TWL4030_MODULE) | |
68 | #define twl_has_gpio() true | |
69 | #else | |
70 | #define twl_has_gpio() false | |
71 | #endif | |
72 | ||
dad759ff DB |
73 | #if defined(CONFIG_REGULATOR_TWL4030) \ |
74 | || defined(CONFIG_REGULATOR_TWL4030_MODULE) | |
75 | #define twl_has_regulator() true | |
76 | #else | |
77 | #define twl_has_regulator() false | |
78 | #endif | |
79 | ||
a603a7fa DB |
80 | #if defined(CONFIG_TWL4030_MADC) || defined(CONFIG_TWL4030_MADC_MODULE) |
81 | #define twl_has_madc() true | |
82 | #else | |
83 | #define twl_has_madc() false | |
84 | #endif | |
85 | ||
ebf0bd36 AK |
86 | #ifdef CONFIG_TWL4030_POWER |
87 | #define twl_has_power() true | |
88 | #else | |
89 | #define twl_has_power() false | |
90 | #endif | |
91 | ||
a603a7fa DB |
92 | #if defined(CONFIG_RTC_DRV_TWL4030) || defined(CONFIG_RTC_DRV_TWL4030_MODULE) |
93 | #define twl_has_rtc() true | |
94 | #else | |
95 | #define twl_has_rtc() false | |
96 | #endif | |
97 | ||
e70357e3 HH |
98 | #if defined(CONFIG_TWL4030_USB) || defined(CONFIG_TWL4030_USB_MODULE) ||\ |
99 | defined(CONFIG_TWL6030_USB) || defined(CONFIG_TWL6030_USB_MODULE) | |
a603a7fa DB |
100 | #define twl_has_usb() true |
101 | #else | |
102 | #define twl_has_usb() false | |
103 | #endif | |
104 | ||
80e45b1e TK |
105 | #if defined(CONFIG_TWL4030_WATCHDOG) || \ |
106 | defined(CONFIG_TWL4030_WATCHDOG_MODULE) | |
107 | #define twl_has_watchdog() true | |
108 | #else | |
109 | #define twl_has_watchdog() false | |
110 | #endif | |
a603a7fa | 111 | |
d62abe56 | 112 | #if defined(CONFIG_TWL4030_CODEC) || defined(CONFIG_TWL4030_CODEC_MODULE) ||\ |
f19b2823 | 113 | defined(CONFIG_TWL6040_CORE) || defined(CONFIG_TWL6040_CORE_MODULE) |
0b83ddeb PU |
114 | #define twl_has_codec() true |
115 | #else | |
116 | #define twl_has_codec() false | |
117 | #endif | |
118 | ||
11c39c4b GI |
119 | #if defined(CONFIG_CHARGER_TWL4030) || defined(CONFIG_CHARGER_TWL4030_MODULE) |
120 | #define twl_has_bci() true | |
121 | #else | |
122 | #define twl_has_bci() false | |
123 | #endif | |
124 | ||
a603a7fa DB |
125 | /* Triton Core internal information (BEGIN) */ |
126 | ||
127 | /* Last - for index max*/ | |
128 | #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG | |
129 | ||
fc7b92fc | 130 | #define TWL_NUM_SLAVES 4 |
a603a7fa | 131 | |
9c3664dd | 132 | #if defined(CONFIG_INPUT_TWL4030_PWRBUTTON) \ |
14e5c82c | 133 | || defined(CONFIG_INPUT_TWL4030_PWRBUTTON_MODULE) |
9c3664dd FB |
134 | #define twl_has_pwrbutton() true |
135 | #else | |
136 | #define twl_has_pwrbutton() false | |
137 | #endif | |
a603a7fa | 138 | |
fc7b92fc B |
139 | #define SUB_CHIP_ID0 0 |
140 | #define SUB_CHIP_ID1 1 | |
141 | #define SUB_CHIP_ID2 2 | |
142 | #define SUB_CHIP_ID3 3 | |
143 | ||
144 | #define TWL_MODULE_LAST TWL4030_MODULE_LAST | |
145 | ||
a603a7fa DB |
146 | /* Base Address defns for twl4030_map[] */ |
147 | ||
148 | /* subchip/slave 0 - USB ID */ | |
149 | #define TWL4030_BASEADD_USB 0x0000 | |
150 | ||
151 | /* subchip/slave 1 - AUD ID */ | |
152 | #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 | |
153 | #define TWL4030_BASEADD_GPIO 0x0098 | |
154 | #define TWL4030_BASEADD_INTBR 0x0085 | |
155 | #define TWL4030_BASEADD_PIH 0x0080 | |
156 | #define TWL4030_BASEADD_TEST 0x004C | |
157 | ||
158 | /* subchip/slave 2 - AUX ID */ | |
159 | #define TWL4030_BASEADD_INTERRUPTS 0x00B9 | |
160 | #define TWL4030_BASEADD_LED 0x00EE | |
161 | #define TWL4030_BASEADD_MADC 0x0000 | |
162 | #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 | |
163 | #define TWL4030_BASEADD_PRECHARGE 0x00AA | |
164 | #define TWL4030_BASEADD_PWM0 0x00F8 | |
165 | #define TWL4030_BASEADD_PWM1 0x00FB | |
166 | #define TWL4030_BASEADD_PWMA 0x00EF | |
167 | #define TWL4030_BASEADD_PWMB 0x00F1 | |
168 | #define TWL4030_BASEADD_KEYPAD 0x00D2 | |
169 | ||
1920a61e IK |
170 | #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ |
171 | #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's | |
172 | one */ | |
173 | ||
a603a7fa DB |
174 | /* subchip/slave 3 - POWER ID */ |
175 | #define TWL4030_BASEADD_BACKUP 0x0014 | |
176 | #define TWL4030_BASEADD_INT 0x002E | |
177 | #define TWL4030_BASEADD_PM_MASTER 0x0036 | |
178 | #define TWL4030_BASEADD_PM_RECEIVER 0x005B | |
179 | #define TWL4030_BASEADD_RTC 0x001C | |
180 | #define TWL4030_BASEADD_SECURED_REG 0x0000 | |
181 | ||
182 | /* Triton Core internal information (END) */ | |
183 | ||
184 | ||
e8deb28c B |
185 | /* subchip/slave 0 0x48 - POWER */ |
186 | #define TWL6030_BASEADD_RTC 0x0000 | |
187 | #define TWL6030_BASEADD_MEM 0x0017 | |
188 | #define TWL6030_BASEADD_PM_MASTER 0x001F | |
189 | #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ | |
190 | #define TWL6030_BASEADD_PM_MISC 0x00E2 | |
191 | #define TWL6030_BASEADD_PM_PUPD 0x00F0 | |
192 | ||
193 | /* subchip/slave 1 0x49 - FEATURE */ | |
194 | #define TWL6030_BASEADD_USB 0x0000 | |
195 | #define TWL6030_BASEADD_GPADC_CTRL 0x002E | |
196 | #define TWL6030_BASEADD_AUX 0x0090 | |
197 | #define TWL6030_BASEADD_PWM 0x00BA | |
198 | #define TWL6030_BASEADD_GASGAUGE 0x00C0 | |
199 | #define TWL6030_BASEADD_PIH 0x00D0 | |
200 | #define TWL6030_BASEADD_CHARGER 0x00E0 | |
521d8ec3 | 201 | #define TWL6025_BASEADD_CHARGER 0x00DA |
e8deb28c B |
202 | |
203 | /* subchip/slave 2 0x4A - DFT */ | |
204 | #define TWL6030_BASEADD_DIEID 0x00C0 | |
205 | ||
206 | /* subchip/slave 3 0x4B - AUDIO */ | |
207 | #define TWL6030_BASEADD_AUDIO 0x0000 | |
208 | #define TWL6030_BASEADD_RSV 0x0000 | |
fa0d9762 | 209 | #define TWL6030_BASEADD_ZERO 0x0000 |
e8deb28c | 210 | |
a603a7fa DB |
211 | /* Few power values */ |
212 | #define R_CFG_BOOT 0x05 | |
a603a7fa DB |
213 | |
214 | /* some fields in R_CFG_BOOT */ | |
215 | #define HFCLK_FREQ_19p2_MHZ (1 << 0) | |
216 | #define HFCLK_FREQ_26_MHZ (2 << 0) | |
217 | #define HFCLK_FREQ_38p4_MHZ (3 << 0) | |
218 | #define HIGH_PERF_SQ (1 << 3) | |
38a68496 | 219 | #define CK32K_LOWPWR_EN (1 << 7) |
a603a7fa DB |
220 | |
221 | ||
dad759ff DB |
222 | /* chip-specific feature flags, for i2c_device_id.driver_data */ |
223 | #define TWL4030_VAUX2 BIT(0) /* pre-5030 voltage ranges */ | |
224 | #define TPS_SUBSET BIT(1) /* tps659[23]0 have fewer LDOs */ | |
1920a61e | 225 | #define TWL5031 BIT(2) /* twl5031 has different registers */ |
e8deb28c | 226 | #define TWL6030_CLASS BIT(3) /* TWL6030 class */ |
dad759ff | 227 | |
a603a7fa DB |
228 | /*----------------------------------------------------------------------*/ |
229 | ||
a603a7fa DB |
230 | /* is driver active, bound to a chip? */ |
231 | static bool inuse; | |
232 | ||
ca972d13 L |
233 | /* TWL IDCODE Register value */ |
234 | static u32 twl_idcode; | |
235 | ||
e8deb28c B |
236 | static unsigned int twl_id; |
237 | unsigned int twl_rev(void) | |
238 | { | |
239 | return twl_id; | |
240 | } | |
241 | EXPORT_SYMBOL(twl_rev); | |
242 | ||
243 | /* Structure for each TWL4030/TWL6030 Slave */ | |
fc7b92fc | 244 | struct twl_client { |
a603a7fa DB |
245 | struct i2c_client *client; |
246 | u8 address; | |
247 | ||
248 | /* max numb of i2c_msg required is for read =2 */ | |
249 | struct i2c_msg xfer_msg[2]; | |
250 | ||
251 | /* To lock access to xfer_msg */ | |
252 | struct mutex xfer_lock; | |
253 | }; | |
254 | ||
fc7b92fc | 255 | static struct twl_client twl_modules[TWL_NUM_SLAVES]; |
a603a7fa DB |
256 | |
257 | ||
258 | /* mapping the module id to slave id and base address */ | |
fc7b92fc | 259 | struct twl_mapping { |
a603a7fa DB |
260 | unsigned char sid; /* Slave ID */ |
261 | unsigned char base; /* base address */ | |
262 | }; | |
2cfcce18 | 263 | static struct twl_mapping *twl_map; |
a603a7fa | 264 | |
fc7b92fc | 265 | static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { |
a603a7fa DB |
266 | /* |
267 | * NOTE: don't change this table without updating the | |
e8deb28c | 268 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
a603a7fa DB |
269 | * so they continue to match the order in this table. |
270 | */ | |
271 | ||
272 | { 0, TWL4030_BASEADD_USB }, | |
273 | ||
274 | { 1, TWL4030_BASEADD_AUDIO_VOICE }, | |
275 | { 1, TWL4030_BASEADD_GPIO }, | |
276 | { 1, TWL4030_BASEADD_INTBR }, | |
277 | { 1, TWL4030_BASEADD_PIH }, | |
278 | { 1, TWL4030_BASEADD_TEST }, | |
279 | ||
280 | { 2, TWL4030_BASEADD_KEYPAD }, | |
281 | { 2, TWL4030_BASEADD_MADC }, | |
282 | { 2, TWL4030_BASEADD_INTERRUPTS }, | |
283 | { 2, TWL4030_BASEADD_LED }, | |
284 | { 2, TWL4030_BASEADD_MAIN_CHARGE }, | |
285 | { 2, TWL4030_BASEADD_PRECHARGE }, | |
286 | { 2, TWL4030_BASEADD_PWM0 }, | |
287 | { 2, TWL4030_BASEADD_PWM1 }, | |
288 | { 2, TWL4030_BASEADD_PWMA }, | |
289 | { 2, TWL4030_BASEADD_PWMB }, | |
1920a61e IK |
290 | { 2, TWL5031_BASEADD_ACCESSORY }, |
291 | { 2, TWL5031_BASEADD_INTERRUPTS }, | |
a603a7fa DB |
292 | |
293 | { 3, TWL4030_BASEADD_BACKUP }, | |
294 | { 3, TWL4030_BASEADD_INT }, | |
295 | { 3, TWL4030_BASEADD_PM_MASTER }, | |
296 | { 3, TWL4030_BASEADD_PM_RECEIVER }, | |
297 | { 3, TWL4030_BASEADD_RTC }, | |
298 | { 3, TWL4030_BASEADD_SECURED_REG }, | |
299 | }; | |
300 | ||
e8deb28c B |
301 | static struct twl_mapping twl6030_map[] = { |
302 | /* | |
303 | * NOTE: don't change this table without updating the | |
304 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* | |
305 | * so they continue to match the order in this table. | |
306 | */ | |
307 | { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, | |
308 | { SUB_CHIP_ID3, TWL6030_BASEADD_AUDIO }, | |
309 | { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, | |
310 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
311 | { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, | |
312 | ||
313 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
314 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
315 | { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, | |
316 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
317 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
318 | ||
319 | { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, | |
320 | { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, | |
321 | { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, | |
fa0d9762 B |
322 | { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, |
323 | { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, | |
e8deb28c | 324 | |
fa0d9762 B |
325 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, |
326 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, | |
e8deb28c B |
327 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
328 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
329 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
330 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, | |
331 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, | |
332 | ||
333 | { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, | |
334 | { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, | |
521d8ec3 | 335 | { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, |
e8deb28c B |
336 | }; |
337 | ||
a603a7fa DB |
338 | /*----------------------------------------------------------------------*/ |
339 | ||
a603a7fa DB |
340 | /* Exported Functions */ |
341 | ||
342 | /** | |
fc7b92fc | 343 | * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
344 | * @mod_no: module number |
345 | * @value: an array of num_bytes+1 containing data to write | |
346 | * @reg: register address (just offset will do) | |
347 | * @num_bytes: number of bytes to transfer | |
348 | * | |
349 | * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and | |
350 | * valid data starts at Offset 1. | |
351 | * | |
352 | * Returns the result of operation - 0 is success | |
353 | */ | |
fc7b92fc | 354 | int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
355 | { |
356 | int ret; | |
357 | int sid; | |
fc7b92fc | 358 | struct twl_client *twl; |
a603a7fa DB |
359 | struct i2c_msg *msg; |
360 | ||
fc7b92fc | 361 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
a603a7fa DB |
362 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
363 | return -EPERM; | |
364 | } | |
e8deb28c | 365 | sid = twl_map[mod_no].sid; |
fc7b92fc | 366 | twl = &twl_modules[sid]; |
a603a7fa DB |
367 | |
368 | if (unlikely(!inuse)) { | |
369 | pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); | |
370 | return -EPERM; | |
371 | } | |
372 | mutex_lock(&twl->xfer_lock); | |
373 | /* | |
374 | * [MSG1]: fill the register address data | |
375 | * fill the data Tx buffer | |
376 | */ | |
377 | msg = &twl->xfer_msg[0]; | |
378 | msg->addr = twl->address; | |
379 | msg->len = num_bytes + 1; | |
380 | msg->flags = 0; | |
381 | msg->buf = value; | |
382 | /* over write the first byte of buffer with the register address */ | |
e8deb28c | 383 | *value = twl_map[mod_no].base + reg; |
a603a7fa DB |
384 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); |
385 | mutex_unlock(&twl->xfer_lock); | |
386 | ||
147e0847 AK |
387 | /* i2c_transfer returns number of messages transferred */ |
388 | if (ret != 1) { | |
389 | pr_err("%s: i2c_write failed to transfer all messages\n", | |
390 | DRIVER_NAME); | |
391 | if (ret < 0) | |
392 | return ret; | |
393 | else | |
394 | return -EIO; | |
395 | } else { | |
396 | return 0; | |
397 | } | |
a603a7fa | 398 | } |
fc7b92fc | 399 | EXPORT_SYMBOL(twl_i2c_write); |
a603a7fa DB |
400 | |
401 | /** | |
fc7b92fc | 402 | * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
403 | * @mod_no: module number |
404 | * @value: an array of num_bytes containing data to be read | |
405 | * @reg: register address (just offset will do) | |
406 | * @num_bytes: number of bytes to transfer | |
407 | * | |
408 | * Returns result of operation - num_bytes is success else failure. | |
409 | */ | |
fc7b92fc | 410 | int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
411 | { |
412 | int ret; | |
413 | u8 val; | |
414 | int sid; | |
fc7b92fc | 415 | struct twl_client *twl; |
a603a7fa DB |
416 | struct i2c_msg *msg; |
417 | ||
fc7b92fc | 418 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
a603a7fa DB |
419 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
420 | return -EPERM; | |
421 | } | |
e8deb28c | 422 | sid = twl_map[mod_no].sid; |
fc7b92fc | 423 | twl = &twl_modules[sid]; |
a603a7fa DB |
424 | |
425 | if (unlikely(!inuse)) { | |
426 | pr_err("%s: client %d is not initialized\n", DRIVER_NAME, sid); | |
427 | return -EPERM; | |
428 | } | |
429 | mutex_lock(&twl->xfer_lock); | |
430 | /* [MSG1] fill the register address data */ | |
431 | msg = &twl->xfer_msg[0]; | |
432 | msg->addr = twl->address; | |
433 | msg->len = 1; | |
434 | msg->flags = 0; /* Read the register value */ | |
e8deb28c | 435 | val = twl_map[mod_no].base + reg; |
a603a7fa DB |
436 | msg->buf = &val; |
437 | /* [MSG2] fill the data rx buffer */ | |
438 | msg = &twl->xfer_msg[1]; | |
439 | msg->addr = twl->address; | |
440 | msg->flags = I2C_M_RD; /* Read the register value */ | |
441 | msg->len = num_bytes; /* only n bytes */ | |
442 | msg->buf = value; | |
443 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); | |
444 | mutex_unlock(&twl->xfer_lock); | |
445 | ||
147e0847 AK |
446 | /* i2c_transfer returns number of messages transferred */ |
447 | if (ret != 2) { | |
448 | pr_err("%s: i2c_read failed to transfer all messages\n", | |
449 | DRIVER_NAME); | |
450 | if (ret < 0) | |
451 | return ret; | |
452 | else | |
453 | return -EIO; | |
454 | } else { | |
455 | return 0; | |
456 | } | |
a603a7fa | 457 | } |
fc7b92fc | 458 | EXPORT_SYMBOL(twl_i2c_read); |
a603a7fa DB |
459 | |
460 | /** | |
fc7b92fc | 461 | * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
462 | * @mod_no: module number |
463 | * @value: the value to be written 8 bit | |
464 | * @reg: register address (just offset will do) | |
465 | * | |
466 | * Returns result of operation - 0 is success | |
467 | */ | |
fc7b92fc | 468 | int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) |
a603a7fa DB |
469 | { |
470 | ||
471 | /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ | |
472 | u8 temp_buffer[2] = { 0 }; | |
473 | /* offset 1 contains the data */ | |
474 | temp_buffer[1] = value; | |
fc7b92fc | 475 | return twl_i2c_write(mod_no, temp_buffer, reg, 1); |
a603a7fa | 476 | } |
fc7b92fc | 477 | EXPORT_SYMBOL(twl_i2c_write_u8); |
a603a7fa DB |
478 | |
479 | /** | |
fc7b92fc | 480 | * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
481 | * @mod_no: module number |
482 | * @value: the value read 8 bit | |
483 | * @reg: register address (just offset will do) | |
484 | * | |
485 | * Returns result of operation - 0 is success | |
486 | */ | |
fc7b92fc | 487 | int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) |
a603a7fa | 488 | { |
fc7b92fc | 489 | return twl_i2c_read(mod_no, value, reg, 1); |
a603a7fa | 490 | } |
fc7b92fc | 491 | EXPORT_SYMBOL(twl_i2c_read_u8); |
a603a7fa DB |
492 | |
493 | /*----------------------------------------------------------------------*/ | |
494 | ||
ca972d13 L |
495 | /** |
496 | * twl_read_idcode_register - API to read the IDCODE register. | |
497 | * | |
498 | * Unlocks the IDCODE register and read the 32 bit value. | |
499 | */ | |
500 | static int twl_read_idcode_register(void) | |
501 | { | |
502 | int err; | |
503 | ||
504 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, | |
505 | REG_UNLOCK_TEST_REG); | |
506 | if (err) { | |
507 | pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); | |
508 | goto fail; | |
509 | } | |
510 | ||
511 | err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), | |
512 | REG_IDCODE_7_0, 4); | |
513 | if (err) { | |
514 | pr_err("TWL4030: unable to read IDCODE -%d\n", err); | |
515 | goto fail; | |
516 | } | |
517 | ||
518 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); | |
519 | if (err) | |
520 | pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); | |
521 | fail: | |
522 | return err; | |
523 | } | |
524 | ||
525 | /** | |
526 | * twl_get_type - API to get TWL Si type. | |
527 | * | |
528 | * Api to get the TWL Si type from IDCODE value. | |
529 | */ | |
530 | int twl_get_type(void) | |
531 | { | |
532 | return TWL_SIL_TYPE(twl_idcode); | |
533 | } | |
534 | EXPORT_SYMBOL_GPL(twl_get_type); | |
535 | ||
536 | /** | |
537 | * twl_get_version - API to get TWL Si version. | |
538 | * | |
539 | * Api to get the TWL Si version from IDCODE value. | |
540 | */ | |
541 | int twl_get_version(void) | |
542 | { | |
543 | return TWL_SIL_REV(twl_idcode); | |
544 | } | |
545 | EXPORT_SYMBOL_GPL(twl_get_version); | |
546 | ||
dad759ff DB |
547 | static struct device * |
548 | add_numbered_child(unsigned chip, const char *name, int num, | |
5725d66b DB |
549 | void *pdata, unsigned pdata_len, |
550 | bool can_wakeup, int irq0, int irq1) | |
a603a7fa | 551 | { |
5725d66b | 552 | struct platform_device *pdev; |
fc7b92fc | 553 | struct twl_client *twl = &twl_modules[chip]; |
5725d66b DB |
554 | int status; |
555 | ||
dad759ff | 556 | pdev = platform_device_alloc(name, num); |
5725d66b DB |
557 | if (!pdev) { |
558 | dev_dbg(&twl->client->dev, "can't alloc dev\n"); | |
559 | status = -ENOMEM; | |
560 | goto err; | |
561 | } | |
a603a7fa | 562 | |
5725d66b DB |
563 | device_init_wakeup(&pdev->dev, can_wakeup); |
564 | pdev->dev.parent = &twl->client->dev; | |
a603a7fa | 565 | |
5725d66b DB |
566 | if (pdata) { |
567 | status = platform_device_add_data(pdev, pdata, pdata_len); | |
568 | if (status < 0) { | |
569 | dev_dbg(&pdev->dev, "can't add platform_data\n"); | |
a603a7fa DB |
570 | goto err; |
571 | } | |
5725d66b | 572 | } |
a603a7fa | 573 | |
5725d66b DB |
574 | if (irq0) { |
575 | struct resource r[2] = { | |
576 | { .start = irq0, .flags = IORESOURCE_IRQ, }, | |
577 | { .start = irq1, .flags = IORESOURCE_IRQ, }, | |
578 | }; | |
a603a7fa | 579 | |
5725d66b | 580 | status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); |
a603a7fa | 581 | if (status < 0) { |
5725d66b | 582 | dev_dbg(&pdev->dev, "can't add irqs\n"); |
a603a7fa DB |
583 | goto err; |
584 | } | |
585 | } | |
586 | ||
5725d66b | 587 | status = platform_device_add(pdev); |
a603a7fa | 588 | |
5725d66b DB |
589 | err: |
590 | if (status < 0) { | |
591 | platform_device_put(pdev); | |
592 | dev_err(&twl->client->dev, "can't add %s dev\n", name); | |
593 | return ERR_PTR(status); | |
594 | } | |
595 | return &pdev->dev; | |
596 | } | |
a603a7fa | 597 | |
dad759ff DB |
598 | static inline struct device *add_child(unsigned chip, const char *name, |
599 | void *pdata, unsigned pdata_len, | |
600 | bool can_wakeup, int irq0, int irq1) | |
601 | { | |
602 | return add_numbered_child(chip, name, -1, pdata, pdata_len, | |
603 | can_wakeup, irq0, irq1); | |
604 | } | |
605 | ||
606 | static struct device * | |
607 | add_regulator_linked(int num, struct regulator_init_data *pdata, | |
608 | struct regulator_consumer_supply *consumers, | |
521d8ec3 | 609 | unsigned num_consumers, unsigned long features) |
dad759ff | 610 | { |
e8deb28c | 611 | unsigned sub_chip_id; |
dad759ff DB |
612 | /* regulator framework demands init_data ... */ |
613 | if (!pdata) | |
614 | return NULL; | |
615 | ||
b73eac78 | 616 | if (consumers) { |
dad759ff DB |
617 | pdata->consumer_supplies = consumers; |
618 | pdata->num_consumer_supplies = num_consumers; | |
619 | } | |
620 | ||
521d8ec3 GG |
621 | pdata->driver_data = (void *)features; |
622 | ||
dad759ff | 623 | /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ |
e8deb28c B |
624 | sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; |
625 | return add_numbered_child(sub_chip_id, "twl_reg", num, | |
dad759ff DB |
626 | pdata, sizeof(*pdata), false, 0, 0); |
627 | } | |
628 | ||
629 | static struct device * | |
521d8ec3 GG |
630 | add_regulator(int num, struct regulator_init_data *pdata, |
631 | unsigned long features) | |
dad759ff | 632 | { |
521d8ec3 | 633 | return add_regulator_linked(num, pdata, NULL, 0, features); |
dad759ff DB |
634 | } |
635 | ||
5725d66b DB |
636 | /* |
637 | * NOTE: We know the first 8 IRQs after pdata->base_irq are | |
638 | * for the PIH, and the next are for the PWR_INT SIH, since | |
639 | * that's how twl_init_irq() sets things up. | |
640 | */ | |
a603a7fa | 641 | |
dad759ff DB |
642 | static int |
643 | add_children(struct twl4030_platform_data *pdata, unsigned long features) | |
5725d66b DB |
644 | { |
645 | struct device *child; | |
e8deb28c | 646 | unsigned sub_chip_id; |
a603a7fa | 647 | |
5725d66b | 648 | if (twl_has_gpio() && pdata->gpio) { |
fc7b92fc | 649 | child = add_child(SUB_CHIP_ID1, "twl4030_gpio", |
5725d66b | 650 | pdata->gpio, sizeof(*pdata->gpio), |
fc7b92fc | 651 | false, pdata->irq_base + GPIO_INTR_OFFSET, 0); |
5725d66b DB |
652 | if (IS_ERR(child)) |
653 | return PTR_ERR(child); | |
a603a7fa DB |
654 | } |
655 | ||
656 | if (twl_has_keypad() && pdata->keypad) { | |
fc7b92fc | 657 | child = add_child(SUB_CHIP_ID2, "twl4030_keypad", |
5725d66b | 658 | pdata->keypad, sizeof(*pdata->keypad), |
fc7b92fc | 659 | true, pdata->irq_base + KEYPAD_INTR_OFFSET, 0); |
5725d66b DB |
660 | if (IS_ERR(child)) |
661 | return PTR_ERR(child); | |
a603a7fa DB |
662 | } |
663 | ||
664 | if (twl_has_madc() && pdata->madc) { | |
5725d66b DB |
665 | child = add_child(2, "twl4030_madc", |
666 | pdata->madc, sizeof(*pdata->madc), | |
fc7b92fc | 667 | true, pdata->irq_base + MADC_INTR_OFFSET, 0); |
5725d66b DB |
668 | if (IS_ERR(child)) |
669 | return PTR_ERR(child); | |
a603a7fa DB |
670 | } |
671 | ||
672 | if (twl_has_rtc()) { | |
a603a7fa | 673 | /* |
5725d66b | 674 | * REVISIT platform_data here currently might expose the |
a603a7fa | 675 | * "msecure" line ... but for now we just expect board |
5725d66b | 676 | * setup to tell the chip "it's always ok to SET_TIME". |
a603a7fa DB |
677 | * Eventually, Linux might become more aware of such |
678 | * HW security concerns, and "least privilege". | |
679 | */ | |
e8deb28c B |
680 | sub_chip_id = twl_map[TWL_MODULE_RTC].sid; |
681 | child = add_child(sub_chip_id, "twl_rtc", | |
5725d66b | 682 | NULL, 0, |
fc7b92fc | 683 | true, pdata->irq_base + RTC_INTR_OFFSET, 0); |
5725d66b DB |
684 | if (IS_ERR(child)) |
685 | return PTR_ERR(child); | |
a603a7fa DB |
686 | } |
687 | ||
9da66539 | 688 | if (twl_has_usb() && pdata->usb && twl_class_is_4030()) { |
f8ebdff0 RQ |
689 | |
690 | static struct regulator_consumer_supply usb1v5 = { | |
691 | .supply = "usb1v5", | |
692 | }; | |
693 | static struct regulator_consumer_supply usb1v8 = { | |
694 | .supply = "usb1v8", | |
695 | }; | |
696 | static struct regulator_consumer_supply usb3v1 = { | |
697 | .supply = "usb3v1", | |
698 | }; | |
699 | ||
700 | /* First add the regulators so that they can be used by transceiver */ | |
701 | if (twl_has_regulator()) { | |
702 | /* this is a template that gets copied */ | |
703 | struct regulator_init_data usb_fixed = { | |
704 | .constraints.valid_modes_mask = | |
705 | REGULATOR_MODE_NORMAL | |
706 | | REGULATOR_MODE_STANDBY, | |
707 | .constraints.valid_ops_mask = | |
708 | REGULATOR_CHANGE_MODE | |
709 | | REGULATOR_CHANGE_STATUS, | |
710 | }; | |
711 | ||
712 | child = add_regulator_linked(TWL4030_REG_VUSB1V5, | |
521d8ec3 GG |
713 | &usb_fixed, &usb1v5, 1, |
714 | features); | |
f8ebdff0 RQ |
715 | if (IS_ERR(child)) |
716 | return PTR_ERR(child); | |
717 | ||
718 | child = add_regulator_linked(TWL4030_REG_VUSB1V8, | |
521d8ec3 GG |
719 | &usb_fixed, &usb1v8, 1, |
720 | features); | |
f8ebdff0 RQ |
721 | if (IS_ERR(child)) |
722 | return PTR_ERR(child); | |
723 | ||
724 | child = add_regulator_linked(TWL4030_REG_VUSB3V1, | |
521d8ec3 GG |
725 | &usb_fixed, &usb3v1, 1, |
726 | features); | |
f8ebdff0 RQ |
727 | if (IS_ERR(child)) |
728 | return PTR_ERR(child); | |
729 | ||
730 | } | |
731 | ||
5725d66b DB |
732 | child = add_child(0, "twl4030_usb", |
733 | pdata->usb, sizeof(*pdata->usb), | |
734 | true, | |
735 | /* irq0 = USB_PRES, irq1 = USB */ | |
fc7b92fc B |
736 | pdata->irq_base + USB_PRES_INTR_OFFSET, |
737 | pdata->irq_base + USB_INTR_OFFSET); | |
f8ebdff0 | 738 | |
5725d66b DB |
739 | if (IS_ERR(child)) |
740 | return PTR_ERR(child); | |
dad759ff DB |
741 | |
742 | /* we need to connect regulators to this transceiver */ | |
f8ebdff0 RQ |
743 | if (twl_has_regulator() && child) { |
744 | usb1v5.dev = child; | |
745 | usb1v8.dev = child; | |
746 | usb3v1.dev = child; | |
747 | } | |
dad759ff | 748 | } |
e70357e3 HH |
749 | if (twl_has_usb() && pdata->usb && twl_class_is_6030()) { |
750 | ||
521d8ec3 GG |
751 | static struct regulator_consumer_supply usb3v3; |
752 | int regulator; | |
e70357e3 HH |
753 | |
754 | if (twl_has_regulator()) { | |
755 | /* this is a template that gets copied */ | |
756 | struct regulator_init_data usb_fixed = { | |
757 | .constraints.valid_modes_mask = | |
758 | REGULATOR_MODE_NORMAL | |
759 | | REGULATOR_MODE_STANDBY, | |
760 | .constraints.valid_ops_mask = | |
761 | REGULATOR_CHANGE_MODE | |
762 | | REGULATOR_CHANGE_STATUS, | |
763 | }; | |
764 | ||
521d8ec3 GG |
765 | if (features & TWL6025_SUBCLASS) { |
766 | usb3v3.supply = "ldousb"; | |
767 | regulator = TWL6025_REG_LDOUSB; | |
768 | } else { | |
769 | usb3v3.supply = "vusb"; | |
770 | regulator = TWL6030_REG_VUSB; | |
771 | } | |
772 | child = add_regulator_linked(regulator, &usb_fixed, | |
773 | &usb3v3, 1, | |
774 | features); | |
e70357e3 HH |
775 | if (IS_ERR(child)) |
776 | return PTR_ERR(child); | |
777 | } | |
778 | ||
521d8ec3 GG |
779 | pdata->usb->features = features; |
780 | ||
e70357e3 HH |
781 | child = add_child(0, "twl6030_usb", |
782 | pdata->usb, sizeof(*pdata->usb), | |
783 | true, | |
784 | /* irq1 = VBUS_PRES, irq0 = USB ID */ | |
785 | pdata->irq_base + USBOTG_INTR_OFFSET, | |
786 | pdata->irq_base + USB_PRES_INTR_OFFSET); | |
787 | ||
788 | if (IS_ERR(child)) | |
789 | return PTR_ERR(child); | |
790 | /* we need to connect regulators to this transceiver */ | |
791 | if (twl_has_regulator() && child) | |
792 | usb3v3.dev = child; | |
521d8ec3 GG |
793 | } else if (twl_has_regulator() && twl_class_is_6030()) { |
794 | if (features & TWL6025_SUBCLASS) | |
795 | child = add_regulator(TWL6025_REG_LDOUSB, | |
796 | pdata->ldousb, features); | |
797 | else | |
798 | child = add_regulator(TWL6030_REG_VUSB, | |
799 | pdata->vusb, features); | |
e70357e3 | 800 | |
521d8ec3 GG |
801 | if (IS_ERR(child)) |
802 | return PTR_ERR(child); | |
e70357e3 | 803 | } |
dad759ff | 804 | |
153617fd | 805 | if (twl_has_watchdog() && twl_class_is_4030()) { |
80e45b1e TK |
806 | child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); |
807 | if (IS_ERR(child)) | |
9c3664dd FB |
808 | return PTR_ERR(child); |
809 | } | |
810 | ||
153617fd | 811 | if (twl_has_pwrbutton() && twl_class_is_4030()) { |
9c3664dd FB |
812 | child = add_child(1, "twl4030_pwrbutton", |
813 | NULL, 0, true, pdata->irq_base + 8 + 0, 0); | |
814 | if (IS_ERR(child)) | |
80e45b1e TK |
815 | return PTR_ERR(child); |
816 | } | |
817 | ||
4ae6df5e | 818 | if (twl_has_codec() && pdata->audio && twl_class_is_4030()) { |
d62abe56 | 819 | sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; |
f0fba2ad | 820 | child = add_child(sub_chip_id, "twl4030-audio", |
4ae6df5e | 821 | pdata->audio, sizeof(*pdata->audio), |
d62abe56 MLC |
822 | false, 0, 0); |
823 | if (IS_ERR(child)) | |
824 | return PTR_ERR(child); | |
825 | } | |
826 | ||
4ae6df5e | 827 | if (twl_has_codec() && pdata->audio && twl_class_is_6030()) { |
d62abe56 | 828 | sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; |
f19b2823 | 829 | child = add_child(sub_chip_id, "twl6040", |
4ae6df5e | 830 | pdata->audio, sizeof(*pdata->audio), |
0b83ddeb PU |
831 | false, 0, 0); |
832 | if (IS_ERR(child)) | |
833 | return PTR_ERR(child); | |
834 | } | |
835 | ||
9da66539 RN |
836 | /* twl4030 regulators */ |
837 | if (twl_has_regulator() && twl_class_is_4030()) { | |
521d8ec3 GG |
838 | child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, |
839 | features); | |
dad759ff DB |
840 | if (IS_ERR(child)) |
841 | return PTR_ERR(child); | |
ab4abe05 | 842 | |
521d8ec3 GG |
843 | child = add_regulator(TWL4030_REG_VIO, pdata->vio, |
844 | features); | |
ab4abe05 JKS |
845 | if (IS_ERR(child)) |
846 | return PTR_ERR(child); | |
847 | ||
521d8ec3 GG |
848 | child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, |
849 | features); | |
ab4abe05 JKS |
850 | if (IS_ERR(child)) |
851 | return PTR_ERR(child); | |
852 | ||
521d8ec3 GG |
853 | child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, |
854 | features); | |
ab4abe05 JKS |
855 | if (IS_ERR(child)) |
856 | return PTR_ERR(child); | |
dad759ff | 857 | |
521d8ec3 GG |
858 | child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, |
859 | features); | |
dad759ff DB |
860 | if (IS_ERR(child)) |
861 | return PTR_ERR(child); | |
862 | ||
521d8ec3 GG |
863 | child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, |
864 | features); | |
dad759ff DB |
865 | if (IS_ERR(child)) |
866 | return PTR_ERR(child); | |
867 | ||
868 | child = add_regulator((features & TWL4030_VAUX2) | |
869 | ? TWL4030_REG_VAUX2_4030 | |
870 | : TWL4030_REG_VAUX2, | |
521d8ec3 | 871 | pdata->vaux2, features); |
dad759ff DB |
872 | if (IS_ERR(child)) |
873 | return PTR_ERR(child); | |
ab4abe05 | 874 | |
521d8ec3 GG |
875 | child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, |
876 | features); | |
ab4abe05 JKS |
877 | if (IS_ERR(child)) |
878 | return PTR_ERR(child); | |
879 | ||
521d8ec3 GG |
880 | child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, |
881 | features); | |
ab4abe05 JKS |
882 | if (IS_ERR(child)) |
883 | return PTR_ERR(child); | |
884 | ||
521d8ec3 GG |
885 | child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, |
886 | features); | |
ab4abe05 JKS |
887 | if (IS_ERR(child)) |
888 | return PTR_ERR(child); | |
dad759ff DB |
889 | } |
890 | ||
dad759ff | 891 | /* maybe add LDOs that are omitted on cost-reduced parts */ |
9da66539 RN |
892 | if (twl_has_regulator() && !(features & TPS_SUBSET) |
893 | && twl_class_is_4030()) { | |
521d8ec3 GG |
894 | child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, |
895 | features); | |
dad759ff DB |
896 | if (IS_ERR(child)) |
897 | return PTR_ERR(child); | |
dad759ff | 898 | |
521d8ec3 GG |
899 | child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, |
900 | features); | |
dad759ff DB |
901 | if (IS_ERR(child)) |
902 | return PTR_ERR(child); | |
903 | ||
521d8ec3 GG |
904 | child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, |
905 | features); | |
dad759ff DB |
906 | if (IS_ERR(child)) |
907 | return PTR_ERR(child); | |
908 | ||
521d8ec3 GG |
909 | child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, |
910 | features); | |
dad759ff DB |
911 | if (IS_ERR(child)) |
912 | return PTR_ERR(child); | |
913 | ||
521d8ec3 GG |
914 | child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, |
915 | features); | |
dad759ff DB |
916 | if (IS_ERR(child)) |
917 | return PTR_ERR(child); | |
918 | ||
521d8ec3 GG |
919 | child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, |
920 | features); | |
dad759ff DB |
921 | if (IS_ERR(child)) |
922 | return PTR_ERR(child); | |
a603a7fa DB |
923 | } |
924 | ||
9da66539 | 925 | /* twl6030 regulators */ |
521d8ec3 GG |
926 | if (twl_has_regulator() && twl_class_is_6030() && |
927 | !(features & TWL6025_SUBCLASS)) { | |
928 | child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, | |
929 | features); | |
930 | if (IS_ERR(child)) | |
931 | return PTR_ERR(child); | |
932 | ||
933 | child = add_regulator(TWL6030_REG_VPP, pdata->vpp, | |
934 | features); | |
935 | if (IS_ERR(child)) | |
936 | return PTR_ERR(child); | |
937 | ||
938 | child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, | |
939 | features); | |
940 | if (IS_ERR(child)) | |
941 | return PTR_ERR(child); | |
942 | ||
943 | child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, | |
944 | features); | |
945 | if (IS_ERR(child)) | |
946 | return PTR_ERR(child); | |
947 | ||
948 | child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, | |
949 | features); | |
950 | if (IS_ERR(child)) | |
951 | return PTR_ERR(child); | |
952 | ||
953 | child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, | |
954 | features); | |
955 | if (IS_ERR(child)) | |
956 | return PTR_ERR(child); | |
957 | ||
958 | child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, | |
959 | features); | |
960 | if (IS_ERR(child)) | |
961 | return PTR_ERR(child); | |
962 | ||
963 | child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, | |
964 | features); | |
965 | if (IS_ERR(child)) | |
966 | return PTR_ERR(child); | |
967 | ||
968 | child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, | |
969 | features); | |
970 | if (IS_ERR(child)) | |
971 | return PTR_ERR(child); | |
972 | } | |
973 | ||
974 | /* 6030 and 6025 share this regulator */ | |
9da66539 | 975 | if (twl_has_regulator() && twl_class_is_6030()) { |
521d8ec3 GG |
976 | child = add_regulator(TWL6030_REG_VANA, pdata->vana, |
977 | features); | |
978 | if (IS_ERR(child)) | |
979 | return PTR_ERR(child); | |
980 | } | |
981 | ||
982 | /* twl6025 regulators */ | |
983 | if (twl_has_regulator() && twl_class_is_6030() && | |
984 | (features & TWL6025_SUBCLASS)) { | |
985 | child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, | |
986 | features); | |
9da66539 RN |
987 | if (IS_ERR(child)) |
988 | return PTR_ERR(child); | |
989 | ||
521d8ec3 GG |
990 | child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, |
991 | features); | |
9da66539 RN |
992 | if (IS_ERR(child)) |
993 | return PTR_ERR(child); | |
994 | ||
521d8ec3 GG |
995 | child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, |
996 | features); | |
9da66539 RN |
997 | if (IS_ERR(child)) |
998 | return PTR_ERR(child); | |
999 | ||
521d8ec3 GG |
1000 | child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, |
1001 | features); | |
9da66539 RN |
1002 | if (IS_ERR(child)) |
1003 | return PTR_ERR(child); | |
1004 | ||
521d8ec3 GG |
1005 | child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, |
1006 | features); | |
9da66539 RN |
1007 | if (IS_ERR(child)) |
1008 | return PTR_ERR(child); | |
1009 | ||
521d8ec3 GG |
1010 | child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, |
1011 | features); | |
9da66539 RN |
1012 | if (IS_ERR(child)) |
1013 | return PTR_ERR(child); | |
1014 | ||
521d8ec3 GG |
1015 | child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, |
1016 | features); | |
9da66539 RN |
1017 | if (IS_ERR(child)) |
1018 | return PTR_ERR(child); | |
1019 | ||
521d8ec3 GG |
1020 | child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, |
1021 | features); | |
9da66539 RN |
1022 | if (IS_ERR(child)) |
1023 | return PTR_ERR(child); | |
1024 | ||
521d8ec3 GG |
1025 | child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, |
1026 | features); | |
9da66539 RN |
1027 | if (IS_ERR(child)) |
1028 | return PTR_ERR(child); | |
8e6de4a3 | 1029 | |
521d8ec3 GG |
1030 | child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, |
1031 | features); | |
8e6de4a3 B |
1032 | if (IS_ERR(child)) |
1033 | return PTR_ERR(child); | |
521d8ec3 GG |
1034 | |
1035 | child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, | |
1036 | features); | |
1037 | if (IS_ERR(child)) | |
1038 | return PTR_ERR(child); | |
1039 | ||
9da66539 RN |
1040 | } |
1041 | ||
11c39c4b GI |
1042 | if (twl_has_bci() && pdata->bci && |
1043 | !(features & (TPS_SUBSET | TWL5031))) { | |
1044 | child = add_child(3, "twl4030_bci", | |
1045 | pdata->bci, sizeof(*pdata->bci), false, | |
1046 | /* irq0 = CHG_PRES, irq1 = BCI */ | |
1047 | pdata->irq_base + BCI_PRES_INTR_OFFSET, | |
1048 | pdata->irq_base + BCI_INTR_OFFSET); | |
1049 | if (IS_ERR(child)) | |
1050 | return PTR_ERR(child); | |
1051 | } | |
1052 | ||
5725d66b | 1053 | return 0; |
a603a7fa DB |
1054 | } |
1055 | ||
1056 | /*----------------------------------------------------------------------*/ | |
1057 | ||
1058 | /* | |
1059 | * These three functions initialize the on-chip clock framework, | |
1060 | * letting it generate the right frequencies for USB, MADC, and | |
1061 | * other purposes. | |
1062 | */ | |
1063 | static inline int __init protect_pm_master(void) | |
1064 | { | |
1065 | int e = 0; | |
1066 | ||
49e6f87e FB |
1067 | e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, |
1068 | TWL4030_PM_MASTER_PROTECT_KEY); | |
a603a7fa DB |
1069 | return e; |
1070 | } | |
1071 | ||
1072 | static inline int __init unprotect_pm_master(void) | |
1073 | { | |
1074 | int e = 0; | |
1075 | ||
49e6f87e FB |
1076 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, |
1077 | TWL4030_PM_MASTER_KEY_CFG1, | |
1078 | TWL4030_PM_MASTER_PROTECT_KEY); | |
1079 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, | |
1080 | TWL4030_PM_MASTER_KEY_CFG2, | |
1081 | TWL4030_PM_MASTER_PROTECT_KEY); | |
1082 | ||
a603a7fa DB |
1083 | return e; |
1084 | } | |
1085 | ||
38a68496 IK |
1086 | static void clocks_init(struct device *dev, |
1087 | struct twl4030_clock_init_data *clock) | |
a603a7fa DB |
1088 | { |
1089 | int e = 0; | |
1090 | struct clk *osc; | |
1091 | u32 rate; | |
1092 | u8 ctrl = HFCLK_FREQ_26_MHZ; | |
1093 | ||
1094 | #if defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3) | |
1095 | if (cpu_is_omap2430()) | |
e6b50c8d | 1096 | osc = clk_get(dev, "osc_ck"); |
a603a7fa | 1097 | else |
e6b50c8d | 1098 | osc = clk_get(dev, "osc_sys_ck"); |
6354ab5c | 1099 | |
a603a7fa | 1100 | if (IS_ERR(osc)) { |
fc7b92fc | 1101 | printk(KERN_WARNING "Skipping twl internal clock init and " |
a603a7fa DB |
1102 | "using bootloader value (unknown osc rate)\n"); |
1103 | return; | |
1104 | } | |
1105 | ||
1106 | rate = clk_get_rate(osc); | |
1107 | clk_put(osc); | |
1108 | ||
6354ab5c SO |
1109 | #else |
1110 | /* REVISIT for non-OMAP systems, pass the clock rate from | |
1111 | * board init code, using platform_data. | |
1112 | */ | |
1113 | osc = ERR_PTR(-EIO); | |
1114 | ||
fc7b92fc | 1115 | printk(KERN_WARNING "Skipping twl internal clock init and " |
6354ab5c SO |
1116 | "using bootloader value (unknown osc rate)\n"); |
1117 | ||
1118 | return; | |
1119 | #endif | |
1120 | ||
a603a7fa DB |
1121 | switch (rate) { |
1122 | case 19200000: | |
1123 | ctrl = HFCLK_FREQ_19p2_MHZ; | |
1124 | break; | |
1125 | case 26000000: | |
1126 | ctrl = HFCLK_FREQ_26_MHZ; | |
1127 | break; | |
1128 | case 38400000: | |
1129 | ctrl = HFCLK_FREQ_38p4_MHZ; | |
1130 | break; | |
1131 | } | |
1132 | ||
1133 | ctrl |= HIGH_PERF_SQ; | |
38a68496 IK |
1134 | if (clock && clock->ck32k_lowpwr_enable) |
1135 | ctrl |= CK32K_LOWPWR_EN; | |
1136 | ||
a603a7fa DB |
1137 | e |= unprotect_pm_master(); |
1138 | /* effect->MADC+USB ck en */ | |
fc7b92fc | 1139 | e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); |
a603a7fa DB |
1140 | e |= protect_pm_master(); |
1141 | ||
1142 | if (e < 0) | |
1143 | pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); | |
1144 | } | |
1145 | ||
1146 | /*----------------------------------------------------------------------*/ | |
1147 | ||
e8deb28c B |
1148 | int twl4030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); |
1149 | int twl4030_exit_irq(void); | |
1150 | int twl4030_init_chip_irq(const char *chip); | |
1151 | int twl6030_init_irq(int irq_num, unsigned irq_base, unsigned irq_end); | |
1152 | int twl6030_exit_irq(void); | |
a603a7fa | 1153 | |
fc7b92fc | 1154 | static int twl_remove(struct i2c_client *client) |
a603a7fa DB |
1155 | { |
1156 | unsigned i; | |
a30d46c0 | 1157 | int status; |
a603a7fa | 1158 | |
e8deb28c B |
1159 | if (twl_class_is_4030()) |
1160 | status = twl4030_exit_irq(); | |
1161 | else | |
1162 | status = twl6030_exit_irq(); | |
1163 | ||
a30d46c0 DB |
1164 | if (status < 0) |
1165 | return status; | |
a603a7fa | 1166 | |
fc7b92fc B |
1167 | for (i = 0; i < TWL_NUM_SLAVES; i++) { |
1168 | struct twl_client *twl = &twl_modules[i]; | |
a603a7fa DB |
1169 | |
1170 | if (twl->client && twl->client != client) | |
1171 | i2c_unregister_device(twl->client); | |
fc7b92fc | 1172 | twl_modules[i].client = NULL; |
a603a7fa DB |
1173 | } |
1174 | inuse = false; | |
1175 | return 0; | |
1176 | } | |
1177 | ||
1178 | /* NOTE: this driver only handles a single twl4030/tps659x0 chip */ | |
5b9cecd6 | 1179 | static int __devinit |
fc7b92fc | 1180 | twl_probe(struct i2c_client *client, const struct i2c_device_id *id) |
a603a7fa DB |
1181 | { |
1182 | int status; | |
1183 | unsigned i; | |
1184 | struct twl4030_platform_data *pdata = client->dev.platform_data; | |
a29aaf55 | 1185 | u8 temp; |
ca972d13 | 1186 | int ret = 0; |
a603a7fa DB |
1187 | |
1188 | if (!pdata) { | |
1189 | dev_dbg(&client->dev, "no platform data?\n"); | |
1190 | return -EINVAL; | |
1191 | } | |
1192 | ||
1193 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { | |
1194 | dev_dbg(&client->dev, "can't talk I2C?\n"); | |
1195 | return -EIO; | |
1196 | } | |
1197 | ||
a30d46c0 | 1198 | if (inuse) { |
a603a7fa DB |
1199 | dev_dbg(&client->dev, "driver is already in use\n"); |
1200 | return -EBUSY; | |
1201 | } | |
1202 | ||
fc7b92fc B |
1203 | for (i = 0; i < TWL_NUM_SLAVES; i++) { |
1204 | struct twl_client *twl = &twl_modules[i]; | |
a603a7fa DB |
1205 | |
1206 | twl->address = client->addr + i; | |
1207 | if (i == 0) | |
1208 | twl->client = client; | |
1209 | else { | |
1210 | twl->client = i2c_new_dummy(client->adapter, | |
1211 | twl->address); | |
1212 | if (!twl->client) { | |
a8643430 | 1213 | dev_err(&client->dev, |
a603a7fa DB |
1214 | "can't attach client %d\n", i); |
1215 | status = -ENOMEM; | |
1216 | goto fail; | |
1217 | } | |
a603a7fa DB |
1218 | } |
1219 | mutex_init(&twl->xfer_lock); | |
1220 | } | |
1221 | inuse = true; | |
e8deb28c B |
1222 | if ((id->driver_data) & TWL6030_CLASS) { |
1223 | twl_id = TWL6030_CLASS_ID; | |
1224 | twl_map = &twl6030_map[0]; | |
1225 | } else { | |
1226 | twl_id = TWL4030_CLASS_ID; | |
1227 | twl_map = &twl4030_map[0]; | |
1228 | } | |
a603a7fa DB |
1229 | |
1230 | /* setup clock framework */ | |
38a68496 | 1231 | clocks_init(&client->dev, pdata->clock); |
a603a7fa | 1232 | |
ca972d13 L |
1233 | /* read TWL IDCODE Register */ |
1234 | if (twl_id == TWL4030_CLASS_ID) { | |
1235 | ret = twl_read_idcode_register(); | |
1236 | WARN(ret < 0, "Error: reading twl_idcode register value\n"); | |
1237 | } | |
1238 | ||
ebf0bd36 AK |
1239 | /* load power event scripts */ |
1240 | if (twl_has_power() && pdata->power) | |
1241 | twl4030_power_init(pdata->power); | |
1242 | ||
a603a7fa DB |
1243 | /* Maybe init the T2 Interrupt subsystem */ |
1244 | if (client->irq | |
1245 | && pdata->irq_base | |
1246 | && pdata->irq_end > pdata->irq_base) { | |
e8deb28c B |
1247 | if (twl_class_is_4030()) { |
1248 | twl4030_init_chip_irq(id->name); | |
1249 | status = twl4030_init_irq(client->irq, pdata->irq_base, | |
1250 | pdata->irq_end); | |
1251 | } else { | |
1252 | status = twl6030_init_irq(client->irq, pdata->irq_base, | |
1253 | pdata->irq_end); | |
1254 | } | |
1255 | ||
a30d46c0 DB |
1256 | if (status < 0) |
1257 | goto fail; | |
a603a7fa DB |
1258 | } |
1259 | ||
a29aaf55 MS |
1260 | /* Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. |
1261 | * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, | |
1262 | * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. | |
1263 | */ | |
1264 | ||
1265 | if (twl_class_is_4030()) { | |
1266 | twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); | |
1267 | temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ | |
1268 | I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); | |
1269 | twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); | |
1270 | } | |
1271 | ||
dad759ff | 1272 | status = add_children(pdata, id->driver_data); |
a603a7fa DB |
1273 | fail: |
1274 | if (status < 0) | |
fc7b92fc | 1275 | twl_remove(client); |
a603a7fa DB |
1276 | return status; |
1277 | } | |
1278 | ||
fc7b92fc | 1279 | static const struct i2c_device_id twl_ids[] = { |
dad759ff DB |
1280 | { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ |
1281 | { "twl5030", 0 }, /* T2 updated */ | |
1920a61e | 1282 | { "twl5031", TWL5031 }, /* TWL5030 updated */ |
dad759ff DB |
1283 | { "tps65950", 0 }, /* catalog version of twl5030 */ |
1284 | { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ | |
1285 | { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ | |
e8deb28c | 1286 | { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ |
521d8ec3 | 1287 | { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ |
a603a7fa DB |
1288 | { /* end of list */ }, |
1289 | }; | |
fc7b92fc | 1290 | MODULE_DEVICE_TABLE(i2c, twl_ids); |
a603a7fa DB |
1291 | |
1292 | /* One Client Driver , 4 Clients */ | |
fc7b92fc | 1293 | static struct i2c_driver twl_driver = { |
a603a7fa | 1294 | .driver.name = DRIVER_NAME, |
fc7b92fc B |
1295 | .id_table = twl_ids, |
1296 | .probe = twl_probe, | |
1297 | .remove = twl_remove, | |
a603a7fa DB |
1298 | }; |
1299 | ||
fc7b92fc | 1300 | static int __init twl_init(void) |
a603a7fa | 1301 | { |
fc7b92fc | 1302 | return i2c_add_driver(&twl_driver); |
a603a7fa | 1303 | } |
fc7b92fc | 1304 | subsys_initcall(twl_init); |
a603a7fa | 1305 | |
fc7b92fc | 1306 | static void __exit twl_exit(void) |
a603a7fa | 1307 | { |
fc7b92fc | 1308 | i2c_del_driver(&twl_driver); |
a603a7fa | 1309 | } |
fc7b92fc | 1310 | module_exit(twl_exit); |
a603a7fa DB |
1311 | |
1312 | MODULE_AUTHOR("Texas Instruments, Inc."); | |
fc7b92fc | 1313 | MODULE_DESCRIPTION("I2C Core interface for TWL"); |
a603a7fa | 1314 | MODULE_LICENSE("GPL"); |