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Misael Lopez Cruzf19b2822011-04-27 02:14:07 -05001/*
2 * MFD driver for TWL6040 audio device
3 *
4 * Authors: Misael Lopez Cruz <misael.lopez@ti.com>
5 * Jorge Eduardo Candelaria <jorge.candelaria@ti.com>
6 * Peter Ujfalusi <peter.ujfalusi@ti.com>
7 *
8 * Copyright: (C) 2011 Texas Instruments, Inc.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 * 02110-1301 USA
23 *
24 */
25
26#include <linux/module.h>
27#include <linux/types.h>
28#include <linux/slab.h>
29#include <linux/kernel.h>
30#include <linux/platform_device.h>
31#include <linux/gpio.h>
32#include <linux/delay.h>
33#include <linux/i2c/twl.h>
34#include <linux/mfd/core.h>
35#include <linux/mfd/twl6040.h>
36
Peter Ujfalusi31b402e2011-10-12 11:57:54 +030037#define VIBRACTRL_MEMBER(reg) ((reg == TWL6040_REG_VIBCTLL) ? 0 : 1)
38
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -050039int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg)
40{
41 int ret;
42 u8 val = 0;
43
44 mutex_lock(&twl6040->io_mutex);
Peter Ujfalusi31b402e2011-10-12 11:57:54 +030045 /* Vibra control registers from cache */
46 if (unlikely(reg == TWL6040_REG_VIBCTLL ||
47 reg == TWL6040_REG_VIBCTLR)) {
48 val = twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)];
49 } else {
50 ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg);
51 if (ret < 0) {
52 mutex_unlock(&twl6040->io_mutex);
53 return ret;
54 }
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -050055 }
56 mutex_unlock(&twl6040->io_mutex);
57
58 return val;
59}
60EXPORT_SYMBOL(twl6040_reg_read);
61
62int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val)
63{
64 int ret;
65
66 mutex_lock(&twl6040->io_mutex);
67 ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg);
Peter Ujfalusi31b402e2011-10-12 11:57:54 +030068 /* Cache the vibra control registers */
69 if (reg == TWL6040_REG_VIBCTLL || reg == TWL6040_REG_VIBCTLR)
70 twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)] = val;
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -050071 mutex_unlock(&twl6040->io_mutex);
72
73 return ret;
74}
75EXPORT_SYMBOL(twl6040_reg_write);
76
77int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask)
78{
79 int ret;
80 u8 val;
81
82 mutex_lock(&twl6040->io_mutex);
83 ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg);
84 if (ret)
85 goto out;
86
87 val |= mask;
88 ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg);
89out:
90 mutex_unlock(&twl6040->io_mutex);
91 return ret;
92}
93EXPORT_SYMBOL(twl6040_set_bits);
94
95int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask)
96{
97 int ret;
98 u8 val;
99
100 mutex_lock(&twl6040->io_mutex);
101 ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg);
102 if (ret)
103 goto out;
104
105 val &= ~mask;
106 ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg);
107out:
108 mutex_unlock(&twl6040->io_mutex);
109 return ret;
110}
111EXPORT_SYMBOL(twl6040_clear_bits);
112
113/* twl6040 codec manual power-up sequence */
114static int twl6040_power_up(struct twl6040 *twl6040)
115{
116 u8 ldoctl, ncpctl, lppllctl;
117 int ret;
118
119 /* enable high-side LDO, reference system and internal oscillator */
120 ldoctl = TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA;
121 ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
122 if (ret)
123 return ret;
124 usleep_range(10000, 10500);
125
126 /* enable negative charge pump */
127 ncpctl = TWL6040_NCPENA;
128 ret = twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl);
129 if (ret)
130 goto ncp_err;
131 usleep_range(1000, 1500);
132
133 /* enable low-side LDO */
134 ldoctl |= TWL6040_LSLDOENA;
135 ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
136 if (ret)
137 goto lsldo_err;
138 usleep_range(1000, 1500);
139
140 /* enable low-power PLL */
141 lppllctl = TWL6040_LPLLENA;
142 ret = twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
143 if (ret)
144 goto lppll_err;
145 usleep_range(5000, 5500);
146
147 /* disable internal oscillator */
148 ldoctl &= ~TWL6040_OSCENA;
149 ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
150 if (ret)
151 goto osc_err;
152
153 return 0;
154
155osc_err:
156 lppllctl &= ~TWL6040_LPLLENA;
157 twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
158lppll_err:
159 ldoctl &= ~TWL6040_LSLDOENA;
160 twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
161lsldo_err:
162 ncpctl &= ~TWL6040_NCPENA;
163 twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl);
164ncp_err:
165 ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA);
166 twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
167
168 return ret;
169}
170
171/* twl6040 manual power-down sequence */
172static void twl6040_power_down(struct twl6040 *twl6040)
173{
174 u8 ncpctl, ldoctl, lppllctl;
175
176 ncpctl = twl6040_reg_read(twl6040, TWL6040_REG_NCPCTL);
177 ldoctl = twl6040_reg_read(twl6040, TWL6040_REG_LDOCTL);
178 lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL);
179
180 /* enable internal oscillator */
181 ldoctl |= TWL6040_OSCENA;
182 twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
183 usleep_range(1000, 1500);
184
185 /* disable low-power PLL */
186 lppllctl &= ~TWL6040_LPLLENA;
187 twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
188
189 /* disable low-side LDO */
190 ldoctl &= ~TWL6040_LSLDOENA;
191 twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
192
193 /* disable negative charge pump */
194 ncpctl &= ~TWL6040_NCPENA;
195 twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl);
196
197 /* disable high-side LDO, reference system and internal oscillator */
198 ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA);
199 twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl);
200}
201
202static irqreturn_t twl6040_naudint_handler(int irq, void *data)
203{
204 struct twl6040 *twl6040 = data;
205 u8 intid, status;
206
207 intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
208
209 if (intid & TWL6040_READYINT)
210 complete(&twl6040->ready);
211
212 if (intid & TWL6040_THINT) {
213 status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS);
214 if (status & TWL6040_TSHUTDET) {
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300215 dev_warn(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500216 "Thermal shutdown, powering-off");
217 twl6040_power(twl6040, 0);
218 } else {
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300219 dev_warn(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500220 "Leaving thermal shutdown, powering-on");
221 twl6040_power(twl6040, 1);
222 }
223 }
224
225 return IRQ_HANDLED;
226}
227
228static int twl6040_power_up_completion(struct twl6040 *twl6040,
229 int naudint)
230{
231 int time_left;
232 u8 intid;
233
234 time_left = wait_for_completion_timeout(&twl6040->ready,
235 msecs_to_jiffies(144));
236 if (!time_left) {
237 intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
238 if (!(intid & TWL6040_READYINT)) {
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300239 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500240 "timeout waiting for READYINT\n");
241 return -ETIMEDOUT;
242 }
243 }
244
245 return 0;
246}
247
248int twl6040_power(struct twl6040 *twl6040, int on)
249{
250 int audpwron = twl6040->audpwron;
251 int naudint = twl6040->irq;
252 int ret = 0;
253
254 mutex_lock(&twl6040->mutex);
255
256 if (on) {
257 /* already powered-up */
258 if (twl6040->power_count++)
259 goto out;
260
261 if (gpio_is_valid(audpwron)) {
262 /* use AUDPWRON line */
263 gpio_set_value(audpwron, 1);
264 /* wait for power-up completion */
265 ret = twl6040_power_up_completion(twl6040, naudint);
266 if (ret) {
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300267 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500268 "automatic power-down failed\n");
269 twl6040->power_count = 0;
270 goto out;
271 }
272 } else {
273 /* use manual power-up sequence */
274 ret = twl6040_power_up(twl6040);
275 if (ret) {
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300276 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500277 "manual power-up failed\n");
278 twl6040->power_count = 0;
279 goto out;
280 }
281 }
Peter Ujfalusicfb7a332011-07-04 10:28:28 +0300282 /* Default PLL configuration after power up */
283 twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL;
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500284 twl6040->sysclk = 19200000;
285 } else {
286 /* already powered-down */
287 if (!twl6040->power_count) {
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300288 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500289 "device is already powered-off\n");
290 ret = -EPERM;
291 goto out;
292 }
293
294 if (--twl6040->power_count)
295 goto out;
296
297 if (gpio_is_valid(audpwron)) {
298 /* use AUDPWRON line */
299 gpio_set_value(audpwron, 0);
300
301 /* power-down sequence latency */
302 usleep_range(500, 700);
303 } else {
304 /* use manual power-down sequence */
305 twl6040_power_down(twl6040);
306 }
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500307 twl6040->sysclk = 0;
308 }
309
310out:
311 mutex_unlock(&twl6040->mutex);
312 return ret;
313}
314EXPORT_SYMBOL(twl6040_power);
315
Peter Ujfalusicfb7a332011-07-04 10:28:28 +0300316int twl6040_set_pll(struct twl6040 *twl6040, int pll_id,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500317 unsigned int freq_in, unsigned int freq_out)
318{
319 u8 hppllctl, lppllctl;
320 int ret = 0;
321
322 mutex_lock(&twl6040->mutex);
323
324 hppllctl = twl6040_reg_read(twl6040, TWL6040_REG_HPPLLCTL);
325 lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL);
326
Peter Ujfalusicfb7a332011-07-04 10:28:28 +0300327 switch (pll_id) {
328 case TWL6040_SYSCLK_SEL_LPPLL:
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500329 /* low-power PLL divider */
330 switch (freq_out) {
331 case 17640000:
332 lppllctl |= TWL6040_LPLLFIN;
333 break;
334 case 19200000:
335 lppllctl &= ~TWL6040_LPLLFIN;
336 break;
337 default:
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300338 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500339 "freq_out %d not supported\n", freq_out);
340 ret = -EINVAL;
341 goto pll_out;
342 }
343 twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
344
345 switch (freq_in) {
346 case 32768:
347 lppllctl |= TWL6040_LPLLENA;
348 twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
349 lppllctl);
350 mdelay(5);
351 lppllctl &= ~TWL6040_HPLLSEL;
352 twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL,
353 lppllctl);
354 hppllctl &= ~TWL6040_HPLLENA;
355 twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL,
356 hppllctl);
357 break;
358 default:
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300359 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500360 "freq_in %d not supported\n", freq_in);
361 ret = -EINVAL;
362 goto pll_out;
363 }
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500364 break;
Peter Ujfalusicfb7a332011-07-04 10:28:28 +0300365 case TWL6040_SYSCLK_SEL_HPPLL:
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500366 /* high-performance PLL can provide only 19.2 MHz */
367 if (freq_out != 19200000) {
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300368 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500369 "freq_out %d not supported\n", freq_out);
370 ret = -EINVAL;
371 goto pll_out;
372 }
373
374 hppllctl &= ~TWL6040_MCLK_MSK;
375
376 switch (freq_in) {
377 case 12000000:
378 /* PLL enabled, active mode */
379 hppllctl |= TWL6040_MCLK_12000KHZ |
380 TWL6040_HPLLENA;
381 break;
382 case 19200000:
383 /*
384 * PLL disabled
385 * (enable PLL if MCLK jitter quality
386 * doesn't meet specification)
387 */
388 hppllctl |= TWL6040_MCLK_19200KHZ;
389 break;
390 case 26000000:
391 /* PLL enabled, active mode */
392 hppllctl |= TWL6040_MCLK_26000KHZ |
393 TWL6040_HPLLENA;
394 break;
395 case 38400000:
396 /* PLL enabled, active mode */
397 hppllctl |= TWL6040_MCLK_38400KHZ |
398 TWL6040_HPLLENA;
399 break;
400 default:
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300401 dev_err(twl6040->dev,
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500402 "freq_in %d not supported\n", freq_in);
403 ret = -EINVAL;
404 goto pll_out;
405 }
406
407 /* enable clock slicer to ensure input waveform is square */
408 hppllctl |= TWL6040_HPLLSQRENA;
409
410 twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, hppllctl);
411 usleep_range(500, 700);
412 lppllctl |= TWL6040_HPLLSEL;
413 twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
414 lppllctl &= ~TWL6040_LPLLENA;
415 twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500416 break;
417 default:
Peter Ujfalusi2d7c9572011-09-15 15:39:23 +0300418 dev_err(twl6040->dev, "unknown pll id %d\n", pll_id);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500419 ret = -EINVAL;
420 goto pll_out;
421 }
422
423 twl6040->sysclk = freq_out;
Peter Ujfalusicfb7a332011-07-04 10:28:28 +0300424 twl6040->pll = pll_id;
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500425
426pll_out:
427 mutex_unlock(&twl6040->mutex);
428 return ret;
429}
430EXPORT_SYMBOL(twl6040_set_pll);
431
Peter Ujfalusicfb7a332011-07-04 10:28:28 +0300432int twl6040_get_pll(struct twl6040 *twl6040)
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500433{
Peter Ujfalusicfb7a332011-07-04 10:28:28 +0300434 if (twl6040->power_count)
435 return twl6040->pll;
436 else
437 return -ENODEV;
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500438}
439EXPORT_SYMBOL(twl6040_get_pll);
440
441unsigned int twl6040_get_sysclk(struct twl6040 *twl6040)
442{
443 return twl6040->sysclk;
444}
445EXPORT_SYMBOL(twl6040_get_sysclk);
446
Peter Ujfalusi70601ec2011-10-12 11:57:55 +0300447/* Get the combined status of the vibra control register */
448int twl6040_get_vibralr_status(struct twl6040 *twl6040)
449{
450 u8 status;
451
452 status = twl6040->vibra_ctrl_cache[0] | twl6040->vibra_ctrl_cache[1];
453 status &= (TWL6040_VIBENA | TWL6040_VIBSEL);
454
455 return status;
456}
457EXPORT_SYMBOL(twl6040_get_vibralr_status);
458
Peter Ujfalusi0f962ae2011-07-05 11:40:33 +0300459static struct resource twl6040_vibra_rsrc[] = {
460 {
461 .flags = IORESOURCE_IRQ,
462 },
463};
464
465static struct resource twl6040_codec_rsrc[] = {
466 {
467 .flags = IORESOURCE_IRQ,
468 },
469};
470
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500471static int __devinit twl6040_probe(struct platform_device *pdev)
472{
473 struct twl4030_audio_data *pdata = pdev->dev.platform_data;
474 struct twl6040 *twl6040;
475 struct mfd_cell *cell = NULL;
476 int ret, children = 0;
477
478 if (!pdata) {
479 dev_err(&pdev->dev, "Platform data is missing\n");
480 return -EINVAL;
481 }
482
Peter Ujfalusid20e1d22011-07-04 20:15:19 +0300483 /* In order to operate correctly we need valid interrupt config */
484 if (!pdata->naudint_irq || !pdata->irq_base) {
485 dev_err(&pdev->dev, "Invalid IRQ configuration\n");
486 return -EINVAL;
487 }
488
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500489 twl6040 = kzalloc(sizeof(struct twl6040), GFP_KERNEL);
490 if (!twl6040)
491 return -ENOMEM;
492
493 platform_set_drvdata(pdev, twl6040);
494
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500495 twl6040->dev = &pdev->dev;
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500496 twl6040->irq = pdata->naudint_irq;
497 twl6040->irq_base = pdata->irq_base;
498
499 mutex_init(&twl6040->mutex);
500 mutex_init(&twl6040->io_mutex);
501 init_completion(&twl6040->ready);
502
503 twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV);
504
Peter Ujfalusi77f63e02011-09-15 15:39:26 +0300505 /* ERRATA: Automatic power-up is not possible in ES1.0 */
506 if (twl6040_get_revid(twl6040) > TWL6040_REV_ES1_0)
507 twl6040->audpwron = pdata->audpwron_gpio;
508 else
509 twl6040->audpwron = -EINVAL;
510
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500511 if (gpio_is_valid(twl6040->audpwron)) {
512 ret = gpio_request(twl6040->audpwron, "audpwron");
513 if (ret)
514 goto gpio1_err;
515
516 ret = gpio_direction_output(twl6040->audpwron, 0);
517 if (ret)
518 goto gpio2_err;
519 }
520
Peter Ujfalusid20e1d22011-07-04 20:15:19 +0300521 /* codec interrupt */
522 ret = twl6040_irq_init(twl6040);
523 if (ret)
524 goto gpio2_err;
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500525
Peter Ujfalusi1b7c4722011-07-04 20:16:23 +0300526 ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY,
527 NULL, twl6040_naudint_handler, 0,
528 "twl6040_irq_ready", twl6040);
Peter Ujfalusid20e1d22011-07-04 20:15:19 +0300529 if (ret) {
530 dev_err(twl6040->dev, "READY IRQ request failed: %d\n",
531 ret);
532 goto irq_err;
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500533 }
534
535 /* dual-access registers controlled by I2C only */
536 twl6040_set_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_I2CSEL);
537
538 if (pdata->codec) {
Peter Ujfalusi0f962ae2011-07-05 11:40:33 +0300539 int irq = twl6040->irq_base + TWL6040_IRQ_PLUG;
540
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500541 cell = &twl6040->cells[children];
542 cell->name = "twl6040-codec";
Peter Ujfalusi0f962ae2011-07-05 11:40:33 +0300543 twl6040_codec_rsrc[0].start = irq;
544 twl6040_codec_rsrc[0].end = irq;
545 cell->resources = twl6040_codec_rsrc;
546 cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc);
Peter Ujfalusi6c448632011-06-01 13:05:10 +0300547 cell->platform_data = pdata->codec;
548 cell->pdata_size = sizeof(*pdata->codec);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500549 children++;
550 }
551
552 if (pdata->vibra) {
Peter Ujfalusi0f962ae2011-07-05 11:40:33 +0300553 int irq = twl6040->irq_base + TWL6040_IRQ_VIB;
554
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500555 cell = &twl6040->cells[children];
556 cell->name = "twl6040-vibra";
Peter Ujfalusi0f962ae2011-07-05 11:40:33 +0300557 twl6040_vibra_rsrc[0].start = irq;
558 twl6040_vibra_rsrc[0].end = irq;
559 cell->resources = twl6040_vibra_rsrc;
560 cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc);
561
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500562 cell->platform_data = pdata->vibra;
563 cell->pdata_size = sizeof(*pdata->vibra);
564 children++;
565 }
566
567 if (children) {
568 ret = mfd_add_devices(&pdev->dev, pdev->id, twl6040->cells,
569 children, NULL, 0);
570 if (ret)
571 goto mfd_err;
572 } else {
573 dev_err(&pdev->dev, "No platform data found for children\n");
574 ret = -ENODEV;
575 goto mfd_err;
576 }
577
578 return 0;
579
580mfd_err:
Peter Ujfalusi1b7c4722011-07-04 20:16:23 +0300581 free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500582irq_err:
Peter Ujfalusid20e1d22011-07-04 20:15:19 +0300583 twl6040_irq_exit(twl6040);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500584gpio2_err:
585 if (gpio_is_valid(twl6040->audpwron))
586 gpio_free(twl6040->audpwron);
587gpio1_err:
588 platform_set_drvdata(pdev, NULL);
589 kfree(twl6040);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500590 return ret;
591}
592
593static int __devexit twl6040_remove(struct platform_device *pdev)
594{
595 struct twl6040 *twl6040 = platform_get_drvdata(pdev);
596
597 if (twl6040->power_count)
598 twl6040_power(twl6040, 0);
599
600 if (gpio_is_valid(twl6040->audpwron))
601 gpio_free(twl6040->audpwron);
602
Peter Ujfalusi1b7c4722011-07-04 20:16:23 +0300603 free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040);
Peter Ujfalusid20e1d22011-07-04 20:15:19 +0300604 twl6040_irq_exit(twl6040);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500605
606 mfd_remove_devices(&pdev->dev);
607 platform_set_drvdata(pdev, NULL);
608 kfree(twl6040);
Misael Lopez Cruzf19b2822011-04-27 02:14:07 -0500609
610 return 0;
611}
612
613static struct platform_driver twl6040_driver = {
614 .probe = twl6040_probe,
615 .remove = __devexit_p(twl6040_remove),
616 .driver = {
617 .owner = THIS_MODULE,
618 .name = "twl6040",
619 },
620};
621
622static int __devinit twl6040_init(void)
623{
624 return platform_driver_register(&twl6040_driver);
625}
626module_init(twl6040_init);
627
628static void __devexit twl6040_exit(void)
629{
630 platform_driver_unregister(&twl6040_driver);
631}
632
633module_exit(twl6040_exit);
634
635MODULE_DESCRIPTION("TWL6040 MFD");
636MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>");
637MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>");
638MODULE_LICENSE("GPL");
639MODULE_ALIAS("platform:twl6040");