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 | /* Triton Core internal information (BEGIN) */ |
67 | ||
68 | /* Last - for index max*/ | |
69 | #define TWL4030_MODULE_LAST TWL4030_MODULE_SECURED_REG | |
70 | ||
fc7b92fc | 71 | #define TWL_NUM_SLAVES 4 |
a603a7fa | 72 | |
fc7b92fc B |
73 | #define SUB_CHIP_ID0 0 |
74 | #define SUB_CHIP_ID1 1 | |
75 | #define SUB_CHIP_ID2 2 | |
76 | #define SUB_CHIP_ID3 3 | |
364cedb2 | 77 | #define SUB_CHIP_ID_INVAL 0xff |
fc7b92fc B |
78 | |
79 | #define TWL_MODULE_LAST TWL4030_MODULE_LAST | |
80 | ||
a603a7fa DB |
81 | /* Base Address defns for twl4030_map[] */ |
82 | ||
83 | /* subchip/slave 0 - USB ID */ | |
84 | #define TWL4030_BASEADD_USB 0x0000 | |
85 | ||
86 | /* subchip/slave 1 - AUD ID */ | |
87 | #define TWL4030_BASEADD_AUDIO_VOICE 0x0000 | |
88 | #define TWL4030_BASEADD_GPIO 0x0098 | |
89 | #define TWL4030_BASEADD_INTBR 0x0085 | |
90 | #define TWL4030_BASEADD_PIH 0x0080 | |
91 | #define TWL4030_BASEADD_TEST 0x004C | |
92 | ||
93 | /* subchip/slave 2 - AUX ID */ | |
94 | #define TWL4030_BASEADD_INTERRUPTS 0x00B9 | |
95 | #define TWL4030_BASEADD_LED 0x00EE | |
96 | #define TWL4030_BASEADD_MADC 0x0000 | |
97 | #define TWL4030_BASEADD_MAIN_CHARGE 0x0074 | |
98 | #define TWL4030_BASEADD_PRECHARGE 0x00AA | |
99 | #define TWL4030_BASEADD_PWM0 0x00F8 | |
100 | #define TWL4030_BASEADD_PWM1 0x00FB | |
101 | #define TWL4030_BASEADD_PWMA 0x00EF | |
102 | #define TWL4030_BASEADD_PWMB 0x00F1 | |
103 | #define TWL4030_BASEADD_KEYPAD 0x00D2 | |
104 | ||
1920a61e IK |
105 | #define TWL5031_BASEADD_ACCESSORY 0x0074 /* Replaces Main Charge */ |
106 | #define TWL5031_BASEADD_INTERRUPTS 0x00B9 /* Different than TWL4030's | |
107 | one */ | |
108 | ||
a603a7fa DB |
109 | /* subchip/slave 3 - POWER ID */ |
110 | #define TWL4030_BASEADD_BACKUP 0x0014 | |
111 | #define TWL4030_BASEADD_INT 0x002E | |
112 | #define TWL4030_BASEADD_PM_MASTER 0x0036 | |
113 | #define TWL4030_BASEADD_PM_RECEIVER 0x005B | |
114 | #define TWL4030_BASEADD_RTC 0x001C | |
115 | #define TWL4030_BASEADD_SECURED_REG 0x0000 | |
116 | ||
117 | /* Triton Core internal information (END) */ | |
118 | ||
119 | ||
e8deb28c B |
120 | /* subchip/slave 0 0x48 - POWER */ |
121 | #define TWL6030_BASEADD_RTC 0x0000 | |
122 | #define TWL6030_BASEADD_MEM 0x0017 | |
123 | #define TWL6030_BASEADD_PM_MASTER 0x001F | |
124 | #define TWL6030_BASEADD_PM_SLAVE_MISC 0x0030 /* PM_RECEIVER */ | |
125 | #define TWL6030_BASEADD_PM_MISC 0x00E2 | |
126 | #define TWL6030_BASEADD_PM_PUPD 0x00F0 | |
127 | ||
128 | /* subchip/slave 1 0x49 - FEATURE */ | |
129 | #define TWL6030_BASEADD_USB 0x0000 | |
130 | #define TWL6030_BASEADD_GPADC_CTRL 0x002E | |
131 | #define TWL6030_BASEADD_AUX 0x0090 | |
132 | #define TWL6030_BASEADD_PWM 0x00BA | |
133 | #define TWL6030_BASEADD_GASGAUGE 0x00C0 | |
134 | #define TWL6030_BASEADD_PIH 0x00D0 | |
135 | #define TWL6030_BASEADD_CHARGER 0x00E0 | |
521d8ec3 | 136 | #define TWL6025_BASEADD_CHARGER 0x00DA |
e8deb28c B |
137 | |
138 | /* subchip/slave 2 0x4A - DFT */ | |
139 | #define TWL6030_BASEADD_DIEID 0x00C0 | |
140 | ||
141 | /* subchip/slave 3 0x4B - AUDIO */ | |
142 | #define TWL6030_BASEADD_AUDIO 0x0000 | |
143 | #define TWL6030_BASEADD_RSV 0x0000 | |
fa0d9762 | 144 | #define TWL6030_BASEADD_ZERO 0x0000 |
e8deb28c | 145 | |
a603a7fa DB |
146 | /* Few power values */ |
147 | #define R_CFG_BOOT 0x05 | |
a603a7fa DB |
148 | |
149 | /* some fields in R_CFG_BOOT */ | |
150 | #define HFCLK_FREQ_19p2_MHZ (1 << 0) | |
151 | #define HFCLK_FREQ_26_MHZ (2 << 0) | |
152 | #define HFCLK_FREQ_38p4_MHZ (3 << 0) | |
153 | #define HIGH_PERF_SQ (1 << 3) | |
38a68496 | 154 | #define CK32K_LOWPWR_EN (1 << 7) |
a603a7fa | 155 | |
a603a7fa DB |
156 | /*----------------------------------------------------------------------*/ |
157 | ||
a603a7fa DB |
158 | /* is driver active, bound to a chip? */ |
159 | static bool inuse; | |
160 | ||
ca972d13 L |
161 | /* TWL IDCODE Register value */ |
162 | static u32 twl_idcode; | |
163 | ||
e8deb28c B |
164 | static unsigned int twl_id; |
165 | unsigned int twl_rev(void) | |
166 | { | |
167 | return twl_id; | |
168 | } | |
169 | EXPORT_SYMBOL(twl_rev); | |
170 | ||
171 | /* Structure for each TWL4030/TWL6030 Slave */ | |
fc7b92fc | 172 | struct twl_client { |
a603a7fa DB |
173 | struct i2c_client *client; |
174 | u8 address; | |
175 | ||
176 | /* max numb of i2c_msg required is for read =2 */ | |
177 | struct i2c_msg xfer_msg[2]; | |
178 | ||
179 | /* To lock access to xfer_msg */ | |
180 | struct mutex xfer_lock; | |
181 | }; | |
182 | ||
fc7b92fc | 183 | static struct twl_client twl_modules[TWL_NUM_SLAVES]; |
a603a7fa | 184 | |
a603a7fa | 185 | /* mapping the module id to slave id and base address */ |
fc7b92fc | 186 | struct twl_mapping { |
a603a7fa DB |
187 | unsigned char sid; /* Slave ID */ |
188 | unsigned char base; /* base address */ | |
189 | }; | |
2cfcce18 | 190 | static struct twl_mapping *twl_map; |
a603a7fa | 191 | |
fc7b92fc | 192 | static struct twl_mapping twl4030_map[TWL4030_MODULE_LAST + 1] = { |
a603a7fa DB |
193 | /* |
194 | * NOTE: don't change this table without updating the | |
e8deb28c | 195 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* |
a603a7fa DB |
196 | * so they continue to match the order in this table. |
197 | */ | |
198 | ||
199 | { 0, TWL4030_BASEADD_USB }, | |
200 | ||
201 | { 1, TWL4030_BASEADD_AUDIO_VOICE }, | |
202 | { 1, TWL4030_BASEADD_GPIO }, | |
203 | { 1, TWL4030_BASEADD_INTBR }, | |
204 | { 1, TWL4030_BASEADD_PIH }, | |
205 | { 1, TWL4030_BASEADD_TEST }, | |
206 | ||
207 | { 2, TWL4030_BASEADD_KEYPAD }, | |
208 | { 2, TWL4030_BASEADD_MADC }, | |
209 | { 2, TWL4030_BASEADD_INTERRUPTS }, | |
210 | { 2, TWL4030_BASEADD_LED }, | |
211 | { 2, TWL4030_BASEADD_MAIN_CHARGE }, | |
212 | { 2, TWL4030_BASEADD_PRECHARGE }, | |
213 | { 2, TWL4030_BASEADD_PWM0 }, | |
214 | { 2, TWL4030_BASEADD_PWM1 }, | |
215 | { 2, TWL4030_BASEADD_PWMA }, | |
216 | { 2, TWL4030_BASEADD_PWMB }, | |
1920a61e IK |
217 | { 2, TWL5031_BASEADD_ACCESSORY }, |
218 | { 2, TWL5031_BASEADD_INTERRUPTS }, | |
a603a7fa DB |
219 | |
220 | { 3, TWL4030_BASEADD_BACKUP }, | |
221 | { 3, TWL4030_BASEADD_INT }, | |
222 | { 3, TWL4030_BASEADD_PM_MASTER }, | |
223 | { 3, TWL4030_BASEADD_PM_RECEIVER }, | |
224 | { 3, TWL4030_BASEADD_RTC }, | |
225 | { 3, TWL4030_BASEADD_SECURED_REG }, | |
226 | }; | |
227 | ||
e8deb28c B |
228 | static struct twl_mapping twl6030_map[] = { |
229 | /* | |
230 | * NOTE: don't change this table without updating the | |
231 | * <linux/i2c/twl.h> defines for TWL4030_MODULE_* | |
232 | * so they continue to match the order in this table. | |
233 | */ | |
234 | { SUB_CHIP_ID1, TWL6030_BASEADD_USB }, | |
364cedb2 | 235 | { SUB_CHIP_ID_INVAL, TWL6030_BASEADD_AUDIO }, |
e8deb28c B |
236 | { SUB_CHIP_ID2, TWL6030_BASEADD_DIEID }, |
237 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
238 | { SUB_CHIP_ID1, TWL6030_BASEADD_PIH }, | |
239 | ||
240 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
241 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
242 | { SUB_CHIP_ID1, TWL6030_BASEADD_GPADC_CTRL }, | |
243 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
244 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
245 | ||
246 | { SUB_CHIP_ID1, TWL6030_BASEADD_CHARGER }, | |
247 | { SUB_CHIP_ID1, TWL6030_BASEADD_GASGAUGE }, | |
248 | { SUB_CHIP_ID1, TWL6030_BASEADD_PWM }, | |
fa0d9762 B |
249 | { SUB_CHIP_ID0, TWL6030_BASEADD_ZERO }, |
250 | { SUB_CHIP_ID1, TWL6030_BASEADD_ZERO }, | |
e8deb28c | 251 | |
fa0d9762 B |
252 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, |
253 | { SUB_CHIP_ID2, TWL6030_BASEADD_ZERO }, | |
e8deb28c B |
254 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, |
255 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
256 | { SUB_CHIP_ID2, TWL6030_BASEADD_RSV }, | |
257 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_MASTER }, | |
258 | { SUB_CHIP_ID0, TWL6030_BASEADD_PM_SLAVE_MISC }, | |
259 | ||
260 | { SUB_CHIP_ID0, TWL6030_BASEADD_RTC }, | |
261 | { SUB_CHIP_ID0, TWL6030_BASEADD_MEM }, | |
521d8ec3 | 262 | { SUB_CHIP_ID1, TWL6025_BASEADD_CHARGER }, |
e8deb28c B |
263 | }; |
264 | ||
a603a7fa DB |
265 | /*----------------------------------------------------------------------*/ |
266 | ||
a603a7fa DB |
267 | /* Exported Functions */ |
268 | ||
269 | /** | |
fc7b92fc | 270 | * twl_i2c_write - Writes a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
271 | * @mod_no: module number |
272 | * @value: an array of num_bytes+1 containing data to write | |
273 | * @reg: register address (just offset will do) | |
274 | * @num_bytes: number of bytes to transfer | |
275 | * | |
276 | * IMPORTANT: for 'value' parameter: Allocate value num_bytes+1 and | |
277 | * valid data starts at Offset 1. | |
278 | * | |
279 | * Returns the result of operation - 0 is success | |
280 | */ | |
fc7b92fc | 281 | int twl_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
282 | { |
283 | int ret; | |
284 | int sid; | |
fc7b92fc | 285 | struct twl_client *twl; |
a603a7fa DB |
286 | struct i2c_msg *msg; |
287 | ||
fc7b92fc | 288 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
a603a7fa DB |
289 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
290 | return -EPERM; | |
291 | } | |
a603a7fa | 292 | if (unlikely(!inuse)) { |
8653be1a | 293 | pr_err("%s: not initialized\n", DRIVER_NAME); |
a603a7fa DB |
294 | return -EPERM; |
295 | } | |
8653be1a | 296 | sid = twl_map[mod_no].sid; |
364cedb2 PU |
297 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
298 | pr_err("%s: module %d is not part of the pmic\n", | |
299 | DRIVER_NAME, mod_no); | |
300 | return -EINVAL; | |
301 | } | |
8653be1a IY |
302 | twl = &twl_modules[sid]; |
303 | ||
a603a7fa DB |
304 | mutex_lock(&twl->xfer_lock); |
305 | /* | |
306 | * [MSG1]: fill the register address data | |
307 | * fill the data Tx buffer | |
308 | */ | |
309 | msg = &twl->xfer_msg[0]; | |
310 | msg->addr = twl->address; | |
311 | msg->len = num_bytes + 1; | |
312 | msg->flags = 0; | |
313 | msg->buf = value; | |
314 | /* over write the first byte of buffer with the register address */ | |
e8deb28c | 315 | *value = twl_map[mod_no].base + reg; |
a603a7fa DB |
316 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 1); |
317 | mutex_unlock(&twl->xfer_lock); | |
318 | ||
147e0847 AK |
319 | /* i2c_transfer returns number of messages transferred */ |
320 | if (ret != 1) { | |
321 | pr_err("%s: i2c_write failed to transfer all messages\n", | |
322 | DRIVER_NAME); | |
323 | if (ret < 0) | |
324 | return ret; | |
325 | else | |
326 | return -EIO; | |
327 | } else { | |
328 | return 0; | |
329 | } | |
a603a7fa | 330 | } |
fc7b92fc | 331 | EXPORT_SYMBOL(twl_i2c_write); |
a603a7fa DB |
332 | |
333 | /** | |
fc7b92fc | 334 | * twl_i2c_read - Reads a n bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
335 | * @mod_no: module number |
336 | * @value: an array of num_bytes containing data to be read | |
337 | * @reg: register address (just offset will do) | |
338 | * @num_bytes: number of bytes to transfer | |
339 | * | |
340 | * Returns result of operation - num_bytes is success else failure. | |
341 | */ | |
fc7b92fc | 342 | int twl_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes) |
a603a7fa DB |
343 | { |
344 | int ret; | |
345 | u8 val; | |
346 | int sid; | |
fc7b92fc | 347 | struct twl_client *twl; |
a603a7fa DB |
348 | struct i2c_msg *msg; |
349 | ||
fc7b92fc | 350 | if (unlikely(mod_no > TWL_MODULE_LAST)) { |
a603a7fa DB |
351 | pr_err("%s: invalid module number %d\n", DRIVER_NAME, mod_no); |
352 | return -EPERM; | |
353 | } | |
a603a7fa | 354 | if (unlikely(!inuse)) { |
8653be1a | 355 | pr_err("%s: not initialized\n", DRIVER_NAME); |
a603a7fa DB |
356 | return -EPERM; |
357 | } | |
8653be1a | 358 | sid = twl_map[mod_no].sid; |
364cedb2 PU |
359 | if (unlikely(sid == SUB_CHIP_ID_INVAL)) { |
360 | pr_err("%s: module %d is not part of the pmic\n", | |
361 | DRIVER_NAME, mod_no); | |
362 | return -EINVAL; | |
363 | } | |
8653be1a IY |
364 | twl = &twl_modules[sid]; |
365 | ||
a603a7fa DB |
366 | mutex_lock(&twl->xfer_lock); |
367 | /* [MSG1] fill the register address data */ | |
368 | msg = &twl->xfer_msg[0]; | |
369 | msg->addr = twl->address; | |
370 | msg->len = 1; | |
371 | msg->flags = 0; /* Read the register value */ | |
e8deb28c | 372 | val = twl_map[mod_no].base + reg; |
a603a7fa DB |
373 | msg->buf = &val; |
374 | /* [MSG2] fill the data rx buffer */ | |
375 | msg = &twl->xfer_msg[1]; | |
376 | msg->addr = twl->address; | |
377 | msg->flags = I2C_M_RD; /* Read the register value */ | |
378 | msg->len = num_bytes; /* only n bytes */ | |
379 | msg->buf = value; | |
380 | ret = i2c_transfer(twl->client->adapter, twl->xfer_msg, 2); | |
381 | mutex_unlock(&twl->xfer_lock); | |
382 | ||
147e0847 AK |
383 | /* i2c_transfer returns number of messages transferred */ |
384 | if (ret != 2) { | |
385 | pr_err("%s: i2c_read failed to transfer all messages\n", | |
386 | DRIVER_NAME); | |
387 | if (ret < 0) | |
388 | return ret; | |
389 | else | |
390 | return -EIO; | |
391 | } else { | |
392 | return 0; | |
393 | } | |
a603a7fa | 394 | } |
fc7b92fc | 395 | EXPORT_SYMBOL(twl_i2c_read); |
a603a7fa DB |
396 | |
397 | /** | |
fc7b92fc | 398 | * twl_i2c_write_u8 - Writes a 8 bit register in TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
399 | * @mod_no: module number |
400 | * @value: the value to be written 8 bit | |
401 | * @reg: register address (just offset will do) | |
402 | * | |
403 | * Returns result of operation - 0 is success | |
404 | */ | |
fc7b92fc | 405 | int twl_i2c_write_u8(u8 mod_no, u8 value, u8 reg) |
a603a7fa DB |
406 | { |
407 | ||
408 | /* 2 bytes offset 1 contains the data offset 0 is used by i2c_write */ | |
409 | u8 temp_buffer[2] = { 0 }; | |
410 | /* offset 1 contains the data */ | |
411 | temp_buffer[1] = value; | |
fc7b92fc | 412 | return twl_i2c_write(mod_no, temp_buffer, reg, 1); |
a603a7fa | 413 | } |
fc7b92fc | 414 | EXPORT_SYMBOL(twl_i2c_write_u8); |
a603a7fa DB |
415 | |
416 | /** | |
fc7b92fc | 417 | * twl_i2c_read_u8 - Reads a 8 bit register from TWL4030/TWL5030/TWL60X0 |
a603a7fa DB |
418 | * @mod_no: module number |
419 | * @value: the value read 8 bit | |
420 | * @reg: register address (just offset will do) | |
421 | * | |
422 | * Returns result of operation - 0 is success | |
423 | */ | |
fc7b92fc | 424 | int twl_i2c_read_u8(u8 mod_no, u8 *value, u8 reg) |
a603a7fa | 425 | { |
fc7b92fc | 426 | return twl_i2c_read(mod_no, value, reg, 1); |
a603a7fa | 427 | } |
fc7b92fc | 428 | EXPORT_SYMBOL(twl_i2c_read_u8); |
a603a7fa DB |
429 | |
430 | /*----------------------------------------------------------------------*/ | |
431 | ||
ca972d13 L |
432 | /** |
433 | * twl_read_idcode_register - API to read the IDCODE register. | |
434 | * | |
435 | * Unlocks the IDCODE register and read the 32 bit value. | |
436 | */ | |
437 | static int twl_read_idcode_register(void) | |
438 | { | |
439 | int err; | |
440 | ||
441 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, TWL_EEPROM_R_UNLOCK, | |
442 | REG_UNLOCK_TEST_REG); | |
443 | if (err) { | |
444 | pr_err("TWL4030 Unable to unlock IDCODE registers -%d\n", err); | |
445 | goto fail; | |
446 | } | |
447 | ||
448 | err = twl_i2c_read(TWL4030_MODULE_INTBR, (u8 *)(&twl_idcode), | |
449 | REG_IDCODE_7_0, 4); | |
450 | if (err) { | |
451 | pr_err("TWL4030: unable to read IDCODE -%d\n", err); | |
452 | goto fail; | |
453 | } | |
454 | ||
455 | err = twl_i2c_write_u8(TWL4030_MODULE_INTBR, 0x0, REG_UNLOCK_TEST_REG); | |
456 | if (err) | |
457 | pr_err("TWL4030 Unable to relock IDCODE registers -%d\n", err); | |
458 | fail: | |
459 | return err; | |
460 | } | |
461 | ||
462 | /** | |
463 | * twl_get_type - API to get TWL Si type. | |
464 | * | |
465 | * Api to get the TWL Si type from IDCODE value. | |
466 | */ | |
467 | int twl_get_type(void) | |
468 | { | |
469 | return TWL_SIL_TYPE(twl_idcode); | |
470 | } | |
471 | EXPORT_SYMBOL_GPL(twl_get_type); | |
472 | ||
473 | /** | |
474 | * twl_get_version - API to get TWL Si version. | |
475 | * | |
476 | * Api to get the TWL Si version from IDCODE value. | |
477 | */ | |
478 | int twl_get_version(void) | |
479 | { | |
480 | return TWL_SIL_REV(twl_idcode); | |
481 | } | |
482 | EXPORT_SYMBOL_GPL(twl_get_version); | |
483 | ||
2275c544 PU |
484 | /** |
485 | * twl_get_hfclk_rate - API to get TWL external HFCLK clock rate. | |
486 | * | |
487 | * Api to get the TWL HFCLK rate based on BOOT_CFG register. | |
488 | */ | |
489 | int twl_get_hfclk_rate(void) | |
490 | { | |
491 | u8 ctrl; | |
492 | int rate; | |
493 | ||
494 | twl_i2c_read_u8(TWL_MODULE_PM_MASTER, &ctrl, R_CFG_BOOT); | |
495 | ||
496 | switch (ctrl & 0x3) { | |
497 | case HFCLK_FREQ_19p2_MHZ: | |
498 | rate = 19200000; | |
499 | break; | |
500 | case HFCLK_FREQ_26_MHZ: | |
501 | rate = 26000000; | |
502 | break; | |
503 | case HFCLK_FREQ_38p4_MHZ: | |
504 | rate = 38400000; | |
505 | break; | |
506 | default: | |
507 | pr_err("TWL4030: HFCLK is not configured\n"); | |
508 | rate = -EINVAL; | |
509 | break; | |
510 | } | |
511 | ||
512 | return rate; | |
513 | } | |
514 | EXPORT_SYMBOL_GPL(twl_get_hfclk_rate); | |
515 | ||
dad759ff DB |
516 | static struct device * |
517 | add_numbered_child(unsigned chip, const char *name, int num, | |
5725d66b DB |
518 | void *pdata, unsigned pdata_len, |
519 | bool can_wakeup, int irq0, int irq1) | |
a603a7fa | 520 | { |
5725d66b | 521 | struct platform_device *pdev; |
fc7b92fc | 522 | struct twl_client *twl = &twl_modules[chip]; |
5725d66b DB |
523 | int status; |
524 | ||
dad759ff | 525 | pdev = platform_device_alloc(name, num); |
5725d66b DB |
526 | if (!pdev) { |
527 | dev_dbg(&twl->client->dev, "can't alloc dev\n"); | |
528 | status = -ENOMEM; | |
529 | goto err; | |
530 | } | |
a603a7fa | 531 | |
5725d66b | 532 | pdev->dev.parent = &twl->client->dev; |
a603a7fa | 533 | |
5725d66b DB |
534 | if (pdata) { |
535 | status = platform_device_add_data(pdev, pdata, pdata_len); | |
536 | if (status < 0) { | |
537 | dev_dbg(&pdev->dev, "can't add platform_data\n"); | |
a603a7fa DB |
538 | goto err; |
539 | } | |
5725d66b | 540 | } |
a603a7fa | 541 | |
5725d66b DB |
542 | if (irq0) { |
543 | struct resource r[2] = { | |
544 | { .start = irq0, .flags = IORESOURCE_IRQ, }, | |
545 | { .start = irq1, .flags = IORESOURCE_IRQ, }, | |
546 | }; | |
a603a7fa | 547 | |
5725d66b | 548 | status = platform_device_add_resources(pdev, r, irq1 ? 2 : 1); |
a603a7fa | 549 | if (status < 0) { |
5725d66b | 550 | dev_dbg(&pdev->dev, "can't add irqs\n"); |
a603a7fa DB |
551 | goto err; |
552 | } | |
553 | } | |
554 | ||
5725d66b | 555 | status = platform_device_add(pdev); |
17ffba6a N |
556 | if (status == 0) |
557 | device_init_wakeup(&pdev->dev, can_wakeup); | |
a603a7fa | 558 | |
5725d66b DB |
559 | err: |
560 | if (status < 0) { | |
561 | platform_device_put(pdev); | |
562 | dev_err(&twl->client->dev, "can't add %s dev\n", name); | |
563 | return ERR_PTR(status); | |
564 | } | |
565 | return &pdev->dev; | |
566 | } | |
a603a7fa | 567 | |
dad759ff DB |
568 | static inline struct device *add_child(unsigned chip, const char *name, |
569 | void *pdata, unsigned pdata_len, | |
570 | bool can_wakeup, int irq0, int irq1) | |
571 | { | |
572 | return add_numbered_child(chip, name, -1, pdata, pdata_len, | |
573 | can_wakeup, irq0, irq1); | |
574 | } | |
575 | ||
576 | static struct device * | |
577 | add_regulator_linked(int num, struct regulator_init_data *pdata, | |
578 | struct regulator_consumer_supply *consumers, | |
521d8ec3 | 579 | unsigned num_consumers, unsigned long features) |
dad759ff | 580 | { |
e8deb28c | 581 | unsigned sub_chip_id; |
63bfff4e TK |
582 | struct twl_regulator_driver_data drv_data; |
583 | ||
dad759ff DB |
584 | /* regulator framework demands init_data ... */ |
585 | if (!pdata) | |
586 | return NULL; | |
587 | ||
b73eac78 | 588 | if (consumers) { |
dad759ff DB |
589 | pdata->consumer_supplies = consumers; |
590 | pdata->num_consumer_supplies = num_consumers; | |
591 | } | |
592 | ||
63bfff4e TK |
593 | if (pdata->driver_data) { |
594 | /* If we have existing drv_data, just add the flags */ | |
595 | struct twl_regulator_driver_data *tmp; | |
596 | tmp = pdata->driver_data; | |
597 | tmp->features |= features; | |
598 | } else { | |
599 | /* add new driver data struct, used only during init */ | |
600 | drv_data.features = features; | |
601 | drv_data.set_voltage = NULL; | |
602 | drv_data.get_voltage = NULL; | |
603 | drv_data.data = NULL; | |
604 | pdata->driver_data = &drv_data; | |
605 | } | |
521d8ec3 | 606 | |
dad759ff | 607 | /* NOTE: we currently ignore regulator IRQs, e.g. for short circuits */ |
e8deb28c B |
608 | sub_chip_id = twl_map[TWL_MODULE_PM_MASTER].sid; |
609 | return add_numbered_child(sub_chip_id, "twl_reg", num, | |
dad759ff DB |
610 | pdata, sizeof(*pdata), false, 0, 0); |
611 | } | |
612 | ||
613 | static struct device * | |
521d8ec3 GG |
614 | add_regulator(int num, struct regulator_init_data *pdata, |
615 | unsigned long features) | |
dad759ff | 616 | { |
521d8ec3 | 617 | return add_regulator_linked(num, pdata, NULL, 0, features); |
dad759ff DB |
618 | } |
619 | ||
5725d66b DB |
620 | /* |
621 | * NOTE: We know the first 8 IRQs after pdata->base_irq are | |
622 | * for the PIH, and the next are for the PWR_INT SIH, since | |
623 | * that's how twl_init_irq() sets things up. | |
624 | */ | |
a603a7fa | 625 | |
dad759ff | 626 | static int |
9e178620 FB |
627 | add_children(struct twl4030_platform_data *pdata, unsigned irq_base, |
628 | unsigned long features) | |
5725d66b DB |
629 | { |
630 | struct device *child; | |
e8deb28c | 631 | unsigned sub_chip_id; |
a603a7fa | 632 | |
f78959cf | 633 | if (IS_ENABLED(CONFIG_GPIO_TWL4030) && pdata->gpio) { |
fc7b92fc | 634 | child = add_child(SUB_CHIP_ID1, "twl4030_gpio", |
5725d66b | 635 | pdata->gpio, sizeof(*pdata->gpio), |
9e178620 | 636 | false, irq_base + GPIO_INTR_OFFSET, 0); |
5725d66b DB |
637 | if (IS_ERR(child)) |
638 | return PTR_ERR(child); | |
a603a7fa DB |
639 | } |
640 | ||
f78959cf | 641 | if (IS_ENABLED(CONFIG_KEYBOARD_TWL4030) && pdata->keypad) { |
fc7b92fc | 642 | child = add_child(SUB_CHIP_ID2, "twl4030_keypad", |
5725d66b | 643 | pdata->keypad, sizeof(*pdata->keypad), |
9e178620 | 644 | true, irq_base + KEYPAD_INTR_OFFSET, 0); |
5725d66b DB |
645 | if (IS_ERR(child)) |
646 | return PTR_ERR(child); | |
a603a7fa DB |
647 | } |
648 | ||
f78959cf | 649 | if (IS_ENABLED(CONFIG_TWL4030_MADC) && pdata->madc) { |
5725d66b DB |
650 | child = add_child(2, "twl4030_madc", |
651 | pdata->madc, sizeof(*pdata->madc), | |
9e178620 | 652 | true, irq_base + MADC_INTR_OFFSET, 0); |
5725d66b DB |
653 | if (IS_ERR(child)) |
654 | return PTR_ERR(child); | |
a603a7fa DB |
655 | } |
656 | ||
f78959cf | 657 | if (IS_ENABLED(CONFIG_RTC_DRV_TWL4030)) { |
a603a7fa | 658 | /* |
5725d66b | 659 | * REVISIT platform_data here currently might expose the |
a603a7fa | 660 | * "msecure" line ... but for now we just expect board |
5725d66b | 661 | * setup to tell the chip "it's always ok to SET_TIME". |
a603a7fa DB |
662 | * Eventually, Linux might become more aware of such |
663 | * HW security concerns, and "least privilege". | |
664 | */ | |
e8deb28c B |
665 | sub_chip_id = twl_map[TWL_MODULE_RTC].sid; |
666 | child = add_child(sub_chip_id, "twl_rtc", | |
5725d66b | 667 | NULL, 0, |
9e178620 | 668 | true, irq_base + RTC_INTR_OFFSET, 0); |
5725d66b DB |
669 | if (IS_ERR(child)) |
670 | return PTR_ERR(child); | |
a603a7fa DB |
671 | } |
672 | ||
48a364b7 TR |
673 | if (IS_ENABLED(CONFIG_PWM_TWL6030) && twl_class_is_6030()) { |
674 | child = add_child(TWL6030_MODULE_ID1, "twl6030-pwm", NULL, 0, | |
675 | false, 0, 0); | |
676 | if (IS_ERR(child)) | |
677 | return PTR_ERR(child); | |
678 | } | |
679 | ||
f78959cf TR |
680 | if (IS_ENABLED(CONFIG_TWL4030_USB) && pdata->usb && |
681 | twl_class_is_4030()) { | |
f8ebdff0 RQ |
682 | |
683 | static struct regulator_consumer_supply usb1v5 = { | |
684 | .supply = "usb1v5", | |
685 | }; | |
686 | static struct regulator_consumer_supply usb1v8 = { | |
687 | .supply = "usb1v8", | |
688 | }; | |
ab37813f N |
689 | static struct regulator_consumer_supply usb3v1[] = { |
690 | { .supply = "usb3v1" }, | |
691 | { .supply = "bci3v1" }, | |
f8ebdff0 RQ |
692 | }; |
693 | ||
694 | /* First add the regulators so that they can be used by transceiver */ | |
f78959cf | 695 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { |
f8ebdff0 RQ |
696 | /* this is a template that gets copied */ |
697 | struct regulator_init_data usb_fixed = { | |
698 | .constraints.valid_modes_mask = | |
699 | REGULATOR_MODE_NORMAL | |
700 | | REGULATOR_MODE_STANDBY, | |
701 | .constraints.valid_ops_mask = | |
702 | REGULATOR_CHANGE_MODE | |
703 | | REGULATOR_CHANGE_STATUS, | |
704 | }; | |
705 | ||
706 | child = add_regulator_linked(TWL4030_REG_VUSB1V5, | |
521d8ec3 GG |
707 | &usb_fixed, &usb1v5, 1, |
708 | features); | |
f8ebdff0 RQ |
709 | if (IS_ERR(child)) |
710 | return PTR_ERR(child); | |
711 | ||
712 | child = add_regulator_linked(TWL4030_REG_VUSB1V8, | |
521d8ec3 GG |
713 | &usb_fixed, &usb1v8, 1, |
714 | features); | |
f8ebdff0 RQ |
715 | if (IS_ERR(child)) |
716 | return PTR_ERR(child); | |
717 | ||
718 | child = add_regulator_linked(TWL4030_REG_VUSB3V1, | |
ab37813f | 719 | &usb_fixed, usb3v1, 2, |
521d8ec3 | 720 | features); |
f8ebdff0 RQ |
721 | if (IS_ERR(child)) |
722 | return PTR_ERR(child); | |
723 | ||
724 | } | |
725 | ||
5725d66b DB |
726 | child = add_child(0, "twl4030_usb", |
727 | pdata->usb, sizeof(*pdata->usb), | |
728 | true, | |
729 | /* irq0 = USB_PRES, irq1 = USB */ | |
9e178620 FB |
730 | irq_base + USB_PRES_INTR_OFFSET, |
731 | irq_base + USB_INTR_OFFSET); | |
f8ebdff0 | 732 | |
5725d66b DB |
733 | if (IS_ERR(child)) |
734 | return PTR_ERR(child); | |
dad759ff DB |
735 | |
736 | /* we need to connect regulators to this transceiver */ | |
f78959cf | 737 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) { |
1b65fa84 MB |
738 | usb1v5.dev_name = dev_name(child); |
739 | usb1v8.dev_name = dev_name(child); | |
ab37813f | 740 | usb3v1[0].dev_name = dev_name(child); |
f8ebdff0 | 741 | } |
dad759ff | 742 | } |
f78959cf TR |
743 | if (IS_ENABLED(CONFIG_TWL6030_USB) && pdata->usb && |
744 | twl_class_is_6030()) { | |
e70357e3 | 745 | |
521d8ec3 GG |
746 | static struct regulator_consumer_supply usb3v3; |
747 | int regulator; | |
e70357e3 | 748 | |
f78959cf | 749 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030)) { |
e70357e3 HH |
750 | /* this is a template that gets copied */ |
751 | struct regulator_init_data usb_fixed = { | |
752 | .constraints.valid_modes_mask = | |
753 | REGULATOR_MODE_NORMAL | |
754 | | REGULATOR_MODE_STANDBY, | |
755 | .constraints.valid_ops_mask = | |
756 | REGULATOR_CHANGE_MODE | |
757 | | REGULATOR_CHANGE_STATUS, | |
758 | }; | |
759 | ||
521d8ec3 GG |
760 | if (features & TWL6025_SUBCLASS) { |
761 | usb3v3.supply = "ldousb"; | |
762 | regulator = TWL6025_REG_LDOUSB; | |
763 | } else { | |
764 | usb3v3.supply = "vusb"; | |
765 | regulator = TWL6030_REG_VUSB; | |
766 | } | |
767 | child = add_regulator_linked(regulator, &usb_fixed, | |
768 | &usb3v3, 1, | |
769 | features); | |
e70357e3 HH |
770 | if (IS_ERR(child)) |
771 | return PTR_ERR(child); | |
772 | } | |
773 | ||
521d8ec3 GG |
774 | pdata->usb->features = features; |
775 | ||
e70357e3 HH |
776 | child = add_child(0, "twl6030_usb", |
777 | pdata->usb, sizeof(*pdata->usb), | |
778 | true, | |
779 | /* irq1 = VBUS_PRES, irq0 = USB ID */ | |
9e178620 FB |
780 | irq_base + USBOTG_INTR_OFFSET, |
781 | irq_base + USB_PRES_INTR_OFFSET); | |
e70357e3 HH |
782 | |
783 | if (IS_ERR(child)) | |
784 | return PTR_ERR(child); | |
785 | /* we need to connect regulators to this transceiver */ | |
f78959cf | 786 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && child) |
1b65fa84 | 787 | usb3v3.dev_name = dev_name(child); |
f78959cf TR |
788 | } else if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && |
789 | twl_class_is_6030()) { | |
521d8ec3 GG |
790 | if (features & TWL6025_SUBCLASS) |
791 | child = add_regulator(TWL6025_REG_LDOUSB, | |
792 | pdata->ldousb, features); | |
793 | else | |
794 | child = add_regulator(TWL6030_REG_VUSB, | |
795 | pdata->vusb, features); | |
e70357e3 | 796 | |
521d8ec3 GG |
797 | if (IS_ERR(child)) |
798 | return PTR_ERR(child); | |
e70357e3 | 799 | } |
dad759ff | 800 | |
f78959cf | 801 | if (IS_ENABLED(CONFIG_TWL4030_WATCHDOG) && twl_class_is_4030()) { |
80e45b1e TK |
802 | child = add_child(0, "twl4030_wdt", NULL, 0, false, 0, 0); |
803 | if (IS_ERR(child)) | |
9c3664dd FB |
804 | return PTR_ERR(child); |
805 | } | |
806 | ||
f78959cf | 807 | if (IS_ENABLED(CONFIG_INPUT_TWL4030_PWRBUTTON) && twl_class_is_4030()) { |
9c3664dd | 808 | child = add_child(1, "twl4030_pwrbutton", |
9e178620 | 809 | NULL, 0, true, irq_base + 8 + 0, 0); |
9c3664dd | 810 | if (IS_ERR(child)) |
80e45b1e TK |
811 | return PTR_ERR(child); |
812 | } | |
813 | ||
f78959cf TR |
814 | if (IS_ENABLED(CONFIG_MFD_TWL4030_AUDIO) && pdata->audio && |
815 | twl_class_is_4030()) { | |
d62abe56 | 816 | sub_chip_id = twl_map[TWL_MODULE_AUDIO_VOICE].sid; |
f0fba2ad | 817 | child = add_child(sub_chip_id, "twl4030-audio", |
4ae6df5e | 818 | pdata->audio, sizeof(*pdata->audio), |
d62abe56 MLC |
819 | false, 0, 0); |
820 | if (IS_ERR(child)) | |
821 | return PTR_ERR(child); | |
822 | } | |
823 | ||
9da66539 | 824 | /* twl4030 regulators */ |
f78959cf | 825 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_4030()) { |
521d8ec3 GG |
826 | child = add_regulator(TWL4030_REG_VPLL1, pdata->vpll1, |
827 | features); | |
dad759ff DB |
828 | if (IS_ERR(child)) |
829 | return PTR_ERR(child); | |
ab4abe05 | 830 | |
521d8ec3 GG |
831 | child = add_regulator(TWL4030_REG_VIO, pdata->vio, |
832 | features); | |
ab4abe05 JKS |
833 | if (IS_ERR(child)) |
834 | return PTR_ERR(child); | |
835 | ||
521d8ec3 GG |
836 | child = add_regulator(TWL4030_REG_VDD1, pdata->vdd1, |
837 | features); | |
ab4abe05 JKS |
838 | if (IS_ERR(child)) |
839 | return PTR_ERR(child); | |
840 | ||
521d8ec3 GG |
841 | child = add_regulator(TWL4030_REG_VDD2, pdata->vdd2, |
842 | features); | |
ab4abe05 JKS |
843 | if (IS_ERR(child)) |
844 | return PTR_ERR(child); | |
dad759ff | 845 | |
521d8ec3 GG |
846 | child = add_regulator(TWL4030_REG_VMMC1, pdata->vmmc1, |
847 | features); | |
dad759ff DB |
848 | if (IS_ERR(child)) |
849 | return PTR_ERR(child); | |
850 | ||
521d8ec3 GG |
851 | child = add_regulator(TWL4030_REG_VDAC, pdata->vdac, |
852 | features); | |
dad759ff DB |
853 | if (IS_ERR(child)) |
854 | return PTR_ERR(child); | |
855 | ||
856 | child = add_regulator((features & TWL4030_VAUX2) | |
857 | ? TWL4030_REG_VAUX2_4030 | |
858 | : TWL4030_REG_VAUX2, | |
521d8ec3 | 859 | pdata->vaux2, features); |
dad759ff DB |
860 | if (IS_ERR(child)) |
861 | return PTR_ERR(child); | |
ab4abe05 | 862 | |
521d8ec3 GG |
863 | child = add_regulator(TWL4030_REG_VINTANA1, pdata->vintana1, |
864 | features); | |
ab4abe05 JKS |
865 | if (IS_ERR(child)) |
866 | return PTR_ERR(child); | |
867 | ||
521d8ec3 GG |
868 | child = add_regulator(TWL4030_REG_VINTANA2, pdata->vintana2, |
869 | features); | |
ab4abe05 JKS |
870 | if (IS_ERR(child)) |
871 | return PTR_ERR(child); | |
872 | ||
521d8ec3 GG |
873 | child = add_regulator(TWL4030_REG_VINTDIG, pdata->vintdig, |
874 | features); | |
ab4abe05 JKS |
875 | if (IS_ERR(child)) |
876 | return PTR_ERR(child); | |
dad759ff DB |
877 | } |
878 | ||
dad759ff | 879 | /* maybe add LDOs that are omitted on cost-reduced parts */ |
f78959cf | 880 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && !(features & TPS_SUBSET) |
9da66539 | 881 | && twl_class_is_4030()) { |
521d8ec3 GG |
882 | child = add_regulator(TWL4030_REG_VPLL2, pdata->vpll2, |
883 | features); | |
dad759ff DB |
884 | if (IS_ERR(child)) |
885 | return PTR_ERR(child); | |
dad759ff | 886 | |
521d8ec3 GG |
887 | child = add_regulator(TWL4030_REG_VMMC2, pdata->vmmc2, |
888 | features); | |
dad759ff DB |
889 | if (IS_ERR(child)) |
890 | return PTR_ERR(child); | |
891 | ||
521d8ec3 GG |
892 | child = add_regulator(TWL4030_REG_VSIM, pdata->vsim, |
893 | features); | |
dad759ff DB |
894 | if (IS_ERR(child)) |
895 | return PTR_ERR(child); | |
896 | ||
521d8ec3 GG |
897 | child = add_regulator(TWL4030_REG_VAUX1, pdata->vaux1, |
898 | features); | |
dad759ff DB |
899 | if (IS_ERR(child)) |
900 | return PTR_ERR(child); | |
901 | ||
521d8ec3 GG |
902 | child = add_regulator(TWL4030_REG_VAUX3, pdata->vaux3, |
903 | features); | |
dad759ff DB |
904 | if (IS_ERR(child)) |
905 | return PTR_ERR(child); | |
906 | ||
521d8ec3 GG |
907 | child = add_regulator(TWL4030_REG_VAUX4, pdata->vaux4, |
908 | features); | |
dad759ff DB |
909 | if (IS_ERR(child)) |
910 | return PTR_ERR(child); | |
a603a7fa DB |
911 | } |
912 | ||
9da66539 | 913 | /* twl6030 regulators */ |
f78959cf | 914 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && |
521d8ec3 | 915 | !(features & TWL6025_SUBCLASS)) { |
34a38440 TK |
916 | child = add_regulator(TWL6030_REG_VDD1, pdata->vdd1, |
917 | features); | |
918 | if (IS_ERR(child)) | |
919 | return PTR_ERR(child); | |
920 | ||
921 | child = add_regulator(TWL6030_REG_VDD2, pdata->vdd2, | |
922 | features); | |
923 | if (IS_ERR(child)) | |
924 | return PTR_ERR(child); | |
925 | ||
926 | child = add_regulator(TWL6030_REG_VDD3, pdata->vdd3, | |
927 | features); | |
928 | if (IS_ERR(child)) | |
929 | return PTR_ERR(child); | |
930 | ||
46eda3e9 PU |
931 | child = add_regulator(TWL6030_REG_V1V8, pdata->v1v8, |
932 | features); | |
933 | if (IS_ERR(child)) | |
934 | return PTR_ERR(child); | |
935 | ||
936 | child = add_regulator(TWL6030_REG_V2V1, pdata->v2v1, | |
937 | features); | |
938 | if (IS_ERR(child)) | |
939 | return PTR_ERR(child); | |
940 | ||
521d8ec3 GG |
941 | child = add_regulator(TWL6030_REG_VMMC, pdata->vmmc, |
942 | features); | |
943 | if (IS_ERR(child)) | |
944 | return PTR_ERR(child); | |
945 | ||
946 | child = add_regulator(TWL6030_REG_VPP, pdata->vpp, | |
947 | features); | |
948 | if (IS_ERR(child)) | |
949 | return PTR_ERR(child); | |
950 | ||
951 | child = add_regulator(TWL6030_REG_VUSIM, pdata->vusim, | |
952 | features); | |
953 | if (IS_ERR(child)) | |
954 | return PTR_ERR(child); | |
955 | ||
956 | child = add_regulator(TWL6030_REG_VCXIO, pdata->vcxio, | |
957 | features); | |
958 | if (IS_ERR(child)) | |
959 | return PTR_ERR(child); | |
960 | ||
961 | child = add_regulator(TWL6030_REG_VDAC, pdata->vdac, | |
962 | features); | |
963 | if (IS_ERR(child)) | |
964 | return PTR_ERR(child); | |
965 | ||
966 | child = add_regulator(TWL6030_REG_VAUX1_6030, pdata->vaux1, | |
967 | features); | |
968 | if (IS_ERR(child)) | |
969 | return PTR_ERR(child); | |
970 | ||
971 | child = add_regulator(TWL6030_REG_VAUX2_6030, pdata->vaux2, | |
972 | features); | |
973 | if (IS_ERR(child)) | |
974 | return PTR_ERR(child); | |
975 | ||
976 | child = add_regulator(TWL6030_REG_VAUX3_6030, pdata->vaux3, | |
977 | features); | |
978 | if (IS_ERR(child)) | |
979 | return PTR_ERR(child); | |
980 | ||
981 | child = add_regulator(TWL6030_REG_CLK32KG, pdata->clk32kg, | |
982 | features); | |
983 | if (IS_ERR(child)) | |
984 | return PTR_ERR(child); | |
985 | } | |
986 | ||
987 | /* 6030 and 6025 share this regulator */ | |
f78959cf | 988 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030()) { |
521d8ec3 GG |
989 | child = add_regulator(TWL6030_REG_VANA, pdata->vana, |
990 | features); | |
991 | if (IS_ERR(child)) | |
992 | return PTR_ERR(child); | |
993 | } | |
994 | ||
995 | /* twl6025 regulators */ | |
f78959cf | 996 | if (IS_ENABLED(CONFIG_REGULATOR_TWL4030) && twl_class_is_6030() && |
521d8ec3 GG |
997 | (features & TWL6025_SUBCLASS)) { |
998 | child = add_regulator(TWL6025_REG_LDO5, pdata->ldo5, | |
999 | features); | |
9da66539 RN |
1000 | if (IS_ERR(child)) |
1001 | return PTR_ERR(child); | |
1002 | ||
521d8ec3 GG |
1003 | child = add_regulator(TWL6025_REG_LDO1, pdata->ldo1, |
1004 | features); | |
9da66539 RN |
1005 | if (IS_ERR(child)) |
1006 | return PTR_ERR(child); | |
1007 | ||
521d8ec3 GG |
1008 | child = add_regulator(TWL6025_REG_LDO7, pdata->ldo7, |
1009 | features); | |
9da66539 RN |
1010 | if (IS_ERR(child)) |
1011 | return PTR_ERR(child); | |
1012 | ||
521d8ec3 GG |
1013 | child = add_regulator(TWL6025_REG_LDO6, pdata->ldo6, |
1014 | features); | |
9da66539 RN |
1015 | if (IS_ERR(child)) |
1016 | return PTR_ERR(child); | |
1017 | ||
521d8ec3 GG |
1018 | child = add_regulator(TWL6025_REG_LDOLN, pdata->ldoln, |
1019 | features); | |
9da66539 RN |
1020 | if (IS_ERR(child)) |
1021 | return PTR_ERR(child); | |
1022 | ||
521d8ec3 GG |
1023 | child = add_regulator(TWL6025_REG_LDO2, pdata->ldo2, |
1024 | features); | |
9da66539 RN |
1025 | if (IS_ERR(child)) |
1026 | return PTR_ERR(child); | |
1027 | ||
521d8ec3 GG |
1028 | child = add_regulator(TWL6025_REG_LDO4, pdata->ldo4, |
1029 | features); | |
9da66539 RN |
1030 | if (IS_ERR(child)) |
1031 | return PTR_ERR(child); | |
1032 | ||
521d8ec3 GG |
1033 | child = add_regulator(TWL6025_REG_LDO3, pdata->ldo3, |
1034 | features); | |
9da66539 RN |
1035 | if (IS_ERR(child)) |
1036 | return PTR_ERR(child); | |
1037 | ||
521d8ec3 GG |
1038 | child = add_regulator(TWL6025_REG_SMPS3, pdata->smps3, |
1039 | features); | |
9da66539 RN |
1040 | if (IS_ERR(child)) |
1041 | return PTR_ERR(child); | |
8e6de4a3 | 1042 | |
521d8ec3 GG |
1043 | child = add_regulator(TWL6025_REG_SMPS4, pdata->smps4, |
1044 | features); | |
8e6de4a3 B |
1045 | if (IS_ERR(child)) |
1046 | return PTR_ERR(child); | |
521d8ec3 GG |
1047 | |
1048 | child = add_regulator(TWL6025_REG_VIO, pdata->vio6025, | |
1049 | features); | |
1050 | if (IS_ERR(child)) | |
1051 | return PTR_ERR(child); | |
1052 | ||
9da66539 RN |
1053 | } |
1054 | ||
f78959cf | 1055 | if (IS_ENABLED(CONFIG_CHARGER_TWL4030) && pdata->bci && |
11c39c4b GI |
1056 | !(features & (TPS_SUBSET | TWL5031))) { |
1057 | child = add_child(3, "twl4030_bci", | |
1058 | pdata->bci, sizeof(*pdata->bci), false, | |
1059 | /* irq0 = CHG_PRES, irq1 = BCI */ | |
9e178620 FB |
1060 | irq_base + BCI_PRES_INTR_OFFSET, |
1061 | irq_base + BCI_INTR_OFFSET); | |
11c39c4b GI |
1062 | if (IS_ERR(child)) |
1063 | return PTR_ERR(child); | |
1064 | } | |
1065 | ||
5725d66b | 1066 | return 0; |
a603a7fa DB |
1067 | } |
1068 | ||
1069 | /*----------------------------------------------------------------------*/ | |
1070 | ||
1071 | /* | |
1072 | * These three functions initialize the on-chip clock framework, | |
1073 | * letting it generate the right frequencies for USB, MADC, and | |
1074 | * other purposes. | |
1075 | */ | |
1076 | static inline int __init protect_pm_master(void) | |
1077 | { | |
1078 | int e = 0; | |
1079 | ||
49e6f87e FB |
1080 | e = twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, 0, |
1081 | TWL4030_PM_MASTER_PROTECT_KEY); | |
a603a7fa DB |
1082 | return e; |
1083 | } | |
1084 | ||
1085 | static inline int __init unprotect_pm_master(void) | |
1086 | { | |
1087 | int e = 0; | |
1088 | ||
49e6f87e FB |
1089 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, |
1090 | TWL4030_PM_MASTER_KEY_CFG1, | |
1091 | TWL4030_PM_MASTER_PROTECT_KEY); | |
1092 | e |= twl_i2c_write_u8(TWL4030_MODULE_PM_MASTER, | |
1093 | TWL4030_PM_MASTER_KEY_CFG2, | |
1094 | TWL4030_PM_MASTER_PROTECT_KEY); | |
1095 | ||
a603a7fa DB |
1096 | return e; |
1097 | } | |
1098 | ||
38a68496 IK |
1099 | static void clocks_init(struct device *dev, |
1100 | struct twl4030_clock_init_data *clock) | |
a603a7fa DB |
1101 | { |
1102 | int e = 0; | |
1103 | struct clk *osc; | |
1104 | u32 rate; | |
1105 | u8 ctrl = HFCLK_FREQ_26_MHZ; | |
1106 | ||
defa6be1 | 1107 | osc = clk_get(dev, "fck"); |
a603a7fa | 1108 | if (IS_ERR(osc)) { |
fc7b92fc | 1109 | printk(KERN_WARNING "Skipping twl internal clock init and " |
a603a7fa DB |
1110 | "using bootloader value (unknown osc rate)\n"); |
1111 | return; | |
1112 | } | |
1113 | ||
1114 | rate = clk_get_rate(osc); | |
1115 | clk_put(osc); | |
1116 | ||
1117 | switch (rate) { | |
1118 | case 19200000: | |
1119 | ctrl = HFCLK_FREQ_19p2_MHZ; | |
1120 | break; | |
1121 | case 26000000: | |
1122 | ctrl = HFCLK_FREQ_26_MHZ; | |
1123 | break; | |
1124 | case 38400000: | |
1125 | ctrl = HFCLK_FREQ_38p4_MHZ; | |
1126 | break; | |
1127 | } | |
1128 | ||
1129 | ctrl |= HIGH_PERF_SQ; | |
38a68496 IK |
1130 | if (clock && clock->ck32k_lowpwr_enable) |
1131 | ctrl |= CK32K_LOWPWR_EN; | |
1132 | ||
a603a7fa DB |
1133 | e |= unprotect_pm_master(); |
1134 | /* effect->MADC+USB ck en */ | |
fc7b92fc | 1135 | e |= twl_i2c_write_u8(TWL_MODULE_PM_MASTER, ctrl, R_CFG_BOOT); |
a603a7fa DB |
1136 | e |= protect_pm_master(); |
1137 | ||
1138 | if (e < 0) | |
1139 | pr_err("%s: clock init err [%d]\n", DRIVER_NAME, e); | |
1140 | } | |
1141 | ||
1142 | /*----------------------------------------------------------------------*/ | |
1143 | ||
a603a7fa | 1144 | |
fc7b92fc | 1145 | static int twl_remove(struct i2c_client *client) |
a603a7fa | 1146 | { |
364cedb2 | 1147 | unsigned i, num_slaves; |
a30d46c0 | 1148 | int status; |
a603a7fa | 1149 | |
364cedb2 | 1150 | if (twl_class_is_4030()) { |
e8deb28c | 1151 | status = twl4030_exit_irq(); |
364cedb2 PU |
1152 | num_slaves = TWL_NUM_SLAVES; |
1153 | } else { | |
e8deb28c | 1154 | status = twl6030_exit_irq(); |
364cedb2 PU |
1155 | num_slaves = TWL_NUM_SLAVES - 1; |
1156 | } | |
e8deb28c | 1157 | |
a30d46c0 DB |
1158 | if (status < 0) |
1159 | return status; | |
a603a7fa | 1160 | |
364cedb2 | 1161 | for (i = 0; i < num_slaves; i++) { |
fc7b92fc | 1162 | struct twl_client *twl = &twl_modules[i]; |
a603a7fa DB |
1163 | |
1164 | if (twl->client && twl->client != client) | |
1165 | i2c_unregister_device(twl->client); | |
fc7b92fc | 1166 | twl_modules[i].client = NULL; |
a603a7fa DB |
1167 | } |
1168 | inuse = false; | |
1169 | return 0; | |
1170 | } | |
1171 | ||
ec1a07b3 | 1172 | /* NOTE: This driver only handles a single twl4030/tps659x0 chip */ |
5b9cecd6 | 1173 | static int __devinit |
fc7b92fc | 1174 | twl_probe(struct i2c_client *client, const struct i2c_device_id *id) |
a603a7fa | 1175 | { |
a603a7fa | 1176 | struct twl4030_platform_data *pdata = client->dev.platform_data; |
aeb5032b | 1177 | struct device_node *node = client->dev.of_node; |
defa6be1 | 1178 | struct platform_device *pdev; |
ec1a07b3 BC |
1179 | int irq_base = 0; |
1180 | int status; | |
364cedb2 | 1181 | unsigned i, num_slaves; |
aeb5032b | 1182 | |
defa6be1 TL |
1183 | pdev = platform_device_alloc(DRIVER_NAME, -1); |
1184 | if (!pdev) { | |
1185 | dev_err(&client->dev, "can't alloc pdev\n"); | |
1186 | return -ENOMEM; | |
1187 | } | |
1188 | ||
1189 | status = platform_device_add(pdev); | |
1190 | if (status) { | |
1191 | platform_device_put(pdev); | |
1192 | return status; | |
1193 | } | |
1194 | ||
aeb5032b BC |
1195 | if (node && !pdata) { |
1196 | /* | |
1197 | * XXX: Temporary pdata until the information is correctly | |
1198 | * retrieved by every TWL modules from DT. | |
1199 | */ | |
1200 | pdata = devm_kzalloc(&client->dev, | |
1201 | sizeof(struct twl4030_platform_data), | |
1202 | GFP_KERNEL); | |
defa6be1 TL |
1203 | if (!pdata) { |
1204 | status = -ENOMEM; | |
1205 | goto free; | |
1206 | } | |
aeb5032b | 1207 | } |
a603a7fa DB |
1208 | |
1209 | if (!pdata) { | |
1210 | dev_dbg(&client->dev, "no platform data?\n"); | |
defa6be1 TL |
1211 | status = -EINVAL; |
1212 | goto free; | |
a603a7fa DB |
1213 | } |
1214 | ||
defa6be1 TL |
1215 | platform_set_drvdata(pdev, pdata); |
1216 | ||
a603a7fa DB |
1217 | if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C) == 0) { |
1218 | dev_dbg(&client->dev, "can't talk I2C?\n"); | |
defa6be1 TL |
1219 | status = -EIO; |
1220 | goto free; | |
a603a7fa DB |
1221 | } |
1222 | ||
a30d46c0 | 1223 | if (inuse) { |
a603a7fa | 1224 | dev_dbg(&client->dev, "driver is already in use\n"); |
defa6be1 TL |
1225 | status = -EBUSY; |
1226 | goto free; | |
a603a7fa DB |
1227 | } |
1228 | ||
364cedb2 PU |
1229 | if ((id->driver_data) & TWL6030_CLASS) { |
1230 | twl_id = TWL6030_CLASS_ID; | |
1231 | twl_map = &twl6030_map[0]; | |
1232 | num_slaves = TWL_NUM_SLAVES - 1; | |
1233 | } else { | |
1234 | twl_id = TWL4030_CLASS_ID; | |
1235 | twl_map = &twl4030_map[0]; | |
1236 | num_slaves = TWL_NUM_SLAVES; | |
1237 | } | |
1238 | ||
1239 | for (i = 0; i < num_slaves; i++) { | |
ec1a07b3 | 1240 | struct twl_client *twl = &twl_modules[i]; |
a603a7fa DB |
1241 | |
1242 | twl->address = client->addr + i; | |
ec1a07b3 | 1243 | if (i == 0) { |
a603a7fa | 1244 | twl->client = client; |
ec1a07b3 | 1245 | } else { |
a603a7fa DB |
1246 | twl->client = i2c_new_dummy(client->adapter, |
1247 | twl->address); | |
1248 | if (!twl->client) { | |
a8643430 | 1249 | dev_err(&client->dev, |
a603a7fa DB |
1250 | "can't attach client %d\n", i); |
1251 | status = -ENOMEM; | |
1252 | goto fail; | |
1253 | } | |
a603a7fa DB |
1254 | } |
1255 | mutex_init(&twl->xfer_lock); | |
1256 | } | |
ec1a07b3 | 1257 | |
a603a7fa DB |
1258 | inuse = true; |
1259 | ||
1260 | /* setup clock framework */ | |
defa6be1 | 1261 | clocks_init(&pdev->dev, pdata->clock); |
a603a7fa | 1262 | |
ca972d13 L |
1263 | /* read TWL IDCODE Register */ |
1264 | if (twl_id == TWL4030_CLASS_ID) { | |
ec1a07b3 BC |
1265 | status = twl_read_idcode_register(); |
1266 | WARN(status < 0, "Error: reading twl_idcode register value\n"); | |
ca972d13 L |
1267 | } |
1268 | ||
ebf0bd36 | 1269 | /* load power event scripts */ |
f78959cf | 1270 | if (IS_ENABLED(CONFIG_TWL4030_POWER) && pdata->power) |
ebf0bd36 AK |
1271 | twl4030_power_init(pdata->power); |
1272 | ||
a603a7fa | 1273 | /* Maybe init the T2 Interrupt subsystem */ |
9e178620 | 1274 | if (client->irq) { |
e8deb28c B |
1275 | if (twl_class_is_4030()) { |
1276 | twl4030_init_chip_irq(id->name); | |
78518ffa | 1277 | irq_base = twl4030_init_irq(&client->dev, client->irq); |
e8deb28c | 1278 | } else { |
78518ffa | 1279 | irq_base = twl6030_init_irq(&client->dev, client->irq); |
e8deb28c B |
1280 | } |
1281 | ||
78518ffa BC |
1282 | if (irq_base < 0) { |
1283 | status = irq_base; | |
a30d46c0 | 1284 | goto fail; |
78518ffa | 1285 | } |
a603a7fa DB |
1286 | } |
1287 | ||
ec1a07b3 BC |
1288 | /* |
1289 | * Disable TWL4030/TWL5030 I2C Pull-up on I2C1 and I2C4(SR) interface. | |
a29aaf55 MS |
1290 | * Program I2C_SCL_CTRL_PU(bit 0)=0, I2C_SDA_CTRL_PU (bit 2)=0, |
1291 | * SR_I2C_SCL_CTRL_PU(bit 4)=0 and SR_I2C_SDA_CTRL_PU(bit 6)=0. | |
1292 | */ | |
a29aaf55 | 1293 | if (twl_class_is_4030()) { |
ec1a07b3 BC |
1294 | u8 temp; |
1295 | ||
a29aaf55 MS |
1296 | twl_i2c_read_u8(TWL4030_MODULE_INTBR, &temp, REG_GPPUPDCTR1); |
1297 | temp &= ~(SR_I2C_SDA_CTRL_PU | SR_I2C_SCL_CTRL_PU | \ | |
ec1a07b3 | 1298 | I2C_SDA_CTRL_PU | I2C_SCL_CTRL_PU); |
a29aaf55 MS |
1299 | twl_i2c_write_u8(TWL4030_MODULE_INTBR, temp, REG_GPPUPDCTR1); |
1300 | } | |
1301 | ||
964dba28 | 1302 | status = -ENODEV; |
aeb5032b BC |
1303 | if (node) |
1304 | status = of_platform_populate(node, NULL, NULL, &client->dev); | |
964dba28 | 1305 | if (status) |
9e178620 | 1306 | status = add_children(pdata, irq_base, id->driver_data); |
aeb5032b | 1307 | |
a603a7fa DB |
1308 | fail: |
1309 | if (status < 0) | |
fc7b92fc | 1310 | twl_remove(client); |
defa6be1 TL |
1311 | free: |
1312 | if (status < 0) | |
1313 | platform_device_unregister(pdev); | |
ec1a07b3 | 1314 | |
a603a7fa DB |
1315 | return status; |
1316 | } | |
1317 | ||
fc7b92fc | 1318 | static const struct i2c_device_id twl_ids[] = { |
dad759ff DB |
1319 | { "twl4030", TWL4030_VAUX2 }, /* "Triton 2" */ |
1320 | { "twl5030", 0 }, /* T2 updated */ | |
1920a61e | 1321 | { "twl5031", TWL5031 }, /* TWL5030 updated */ |
dad759ff DB |
1322 | { "tps65950", 0 }, /* catalog version of twl5030 */ |
1323 | { "tps65930", TPS_SUBSET }, /* fewer LDOs and DACs; no charger */ | |
1324 | { "tps65920", TPS_SUBSET }, /* fewer LDOs; no codec or charger */ | |
59dead5a OD |
1325 | { "tps65921", TPS_SUBSET }, /* fewer LDOs; no codec, no LED |
1326 | and vibrator. Charger in USB module*/ | |
e8deb28c | 1327 | { "twl6030", TWL6030_CLASS }, /* "Phoenix power chip" */ |
521d8ec3 | 1328 | { "twl6025", TWL6030_CLASS | TWL6025_SUBCLASS }, /* "Phoenix lite" */ |
a603a7fa DB |
1329 | { /* end of list */ }, |
1330 | }; | |
fc7b92fc | 1331 | MODULE_DEVICE_TABLE(i2c, twl_ids); |
a603a7fa DB |
1332 | |
1333 | /* One Client Driver , 4 Clients */ | |
fc7b92fc | 1334 | static struct i2c_driver twl_driver = { |
a603a7fa | 1335 | .driver.name = DRIVER_NAME, |
fc7b92fc B |
1336 | .id_table = twl_ids, |
1337 | .probe = twl_probe, | |
1338 | .remove = twl_remove, | |
a603a7fa DB |
1339 | }; |
1340 | ||
fc7b92fc | 1341 | static int __init twl_init(void) |
a603a7fa | 1342 | { |
fc7b92fc | 1343 | return i2c_add_driver(&twl_driver); |
a603a7fa | 1344 | } |
fc7b92fc | 1345 | subsys_initcall(twl_init); |
a603a7fa | 1346 | |
fc7b92fc | 1347 | static void __exit twl_exit(void) |
a603a7fa | 1348 | { |
fc7b92fc | 1349 | i2c_del_driver(&twl_driver); |
a603a7fa | 1350 | } |
fc7b92fc | 1351 | module_exit(twl_exit); |
a603a7fa DB |
1352 | |
1353 | MODULE_AUTHOR("Texas Instruments, Inc."); | |
fc7b92fc | 1354 | MODULE_DESCRIPTION("I2C Core interface for TWL"); |
a603a7fa | 1355 | MODULE_LICENSE("GPL"); |