Commit | Line | Data |
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f19b2823 MLC |
1 | /* |
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 | ||
f19b2823 MLC |
37 | int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) |
38 | { | |
39 | int ret; | |
40 | u8 val = 0; | |
41 | ||
42 | mutex_lock(&twl6040->io_mutex); | |
43 | ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); | |
44 | if (ret < 0) { | |
45 | mutex_unlock(&twl6040->io_mutex); | |
46 | return ret; | |
47 | } | |
48 | mutex_unlock(&twl6040->io_mutex); | |
49 | ||
50 | return val; | |
51 | } | |
52 | EXPORT_SYMBOL(twl6040_reg_read); | |
53 | ||
54 | int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val) | |
55 | { | |
56 | int ret; | |
57 | ||
58 | mutex_lock(&twl6040->io_mutex); | |
59 | ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); | |
60 | mutex_unlock(&twl6040->io_mutex); | |
61 | ||
62 | return ret; | |
63 | } | |
64 | EXPORT_SYMBOL(twl6040_reg_write); | |
65 | ||
66 | int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) | |
67 | { | |
68 | int ret; | |
69 | u8 val; | |
70 | ||
71 | mutex_lock(&twl6040->io_mutex); | |
72 | ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); | |
73 | if (ret) | |
74 | goto out; | |
75 | ||
76 | val |= mask; | |
77 | ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); | |
78 | out: | |
79 | mutex_unlock(&twl6040->io_mutex); | |
80 | return ret; | |
81 | } | |
82 | EXPORT_SYMBOL(twl6040_set_bits); | |
83 | ||
84 | int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) | |
85 | { | |
86 | int ret; | |
87 | u8 val; | |
88 | ||
89 | mutex_lock(&twl6040->io_mutex); | |
90 | ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); | |
91 | if (ret) | |
92 | goto out; | |
93 | ||
94 | val &= ~mask; | |
95 | ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); | |
96 | out: | |
97 | mutex_unlock(&twl6040->io_mutex); | |
98 | return ret; | |
99 | } | |
100 | EXPORT_SYMBOL(twl6040_clear_bits); | |
101 | ||
102 | /* twl6040 codec manual power-up sequence */ | |
103 | static int twl6040_power_up(struct twl6040 *twl6040) | |
104 | { | |
105 | u8 ldoctl, ncpctl, lppllctl; | |
106 | int ret; | |
107 | ||
108 | /* enable high-side LDO, reference system and internal oscillator */ | |
109 | ldoctl = TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA; | |
110 | ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
111 | if (ret) | |
112 | return ret; | |
113 | usleep_range(10000, 10500); | |
114 | ||
115 | /* enable negative charge pump */ | |
116 | ncpctl = TWL6040_NCPENA; | |
117 | ret = twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); | |
118 | if (ret) | |
119 | goto ncp_err; | |
120 | usleep_range(1000, 1500); | |
121 | ||
122 | /* enable low-side LDO */ | |
123 | ldoctl |= TWL6040_LSLDOENA; | |
124 | ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
125 | if (ret) | |
126 | goto lsldo_err; | |
127 | usleep_range(1000, 1500); | |
128 | ||
129 | /* enable low-power PLL */ | |
130 | lppllctl = TWL6040_LPLLENA; | |
131 | ret = twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); | |
132 | if (ret) | |
133 | goto lppll_err; | |
134 | usleep_range(5000, 5500); | |
135 | ||
136 | /* disable internal oscillator */ | |
137 | ldoctl &= ~TWL6040_OSCENA; | |
138 | ret = twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
139 | if (ret) | |
140 | goto osc_err; | |
141 | ||
142 | return 0; | |
143 | ||
144 | osc_err: | |
145 | lppllctl &= ~TWL6040_LPLLENA; | |
146 | twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); | |
147 | lppll_err: | |
148 | ldoctl &= ~TWL6040_LSLDOENA; | |
149 | twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
150 | lsldo_err: | |
151 | ncpctl &= ~TWL6040_NCPENA; | |
152 | twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); | |
153 | ncp_err: | |
154 | ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); | |
155 | twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
156 | ||
157 | return ret; | |
158 | } | |
159 | ||
160 | /* twl6040 manual power-down sequence */ | |
161 | static void twl6040_power_down(struct twl6040 *twl6040) | |
162 | { | |
163 | u8 ncpctl, ldoctl, lppllctl; | |
164 | ||
165 | ncpctl = twl6040_reg_read(twl6040, TWL6040_REG_NCPCTL); | |
166 | ldoctl = twl6040_reg_read(twl6040, TWL6040_REG_LDOCTL); | |
167 | lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); | |
168 | ||
169 | /* enable internal oscillator */ | |
170 | ldoctl |= TWL6040_OSCENA; | |
171 | twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
172 | usleep_range(1000, 1500); | |
173 | ||
174 | /* disable low-power PLL */ | |
175 | lppllctl &= ~TWL6040_LPLLENA; | |
176 | twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); | |
177 | ||
178 | /* disable low-side LDO */ | |
179 | ldoctl &= ~TWL6040_LSLDOENA; | |
180 | twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
181 | ||
182 | /* disable negative charge pump */ | |
183 | ncpctl &= ~TWL6040_NCPENA; | |
184 | twl6040_reg_write(twl6040, TWL6040_REG_NCPCTL, ncpctl); | |
185 | ||
186 | /* disable high-side LDO, reference system and internal oscillator */ | |
187 | ldoctl &= ~(TWL6040_HSLDOENA | TWL6040_REFENA | TWL6040_OSCENA); | |
188 | twl6040_reg_write(twl6040, TWL6040_REG_LDOCTL, ldoctl); | |
189 | } | |
190 | ||
191 | static irqreturn_t twl6040_naudint_handler(int irq, void *data) | |
192 | { | |
193 | struct twl6040 *twl6040 = data; | |
194 | u8 intid, status; | |
195 | ||
196 | intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); | |
197 | ||
198 | if (intid & TWL6040_READYINT) | |
199 | complete(&twl6040->ready); | |
200 | ||
201 | if (intid & TWL6040_THINT) { | |
202 | status = twl6040_reg_read(twl6040, TWL6040_REG_STATUS); | |
203 | if (status & TWL6040_TSHUTDET) { | |
2d7c957e | 204 | dev_warn(twl6040->dev, |
f19b2823 MLC |
205 | "Thermal shutdown, powering-off"); |
206 | twl6040_power(twl6040, 0); | |
207 | } else { | |
2d7c957e | 208 | dev_warn(twl6040->dev, |
f19b2823 MLC |
209 | "Leaving thermal shutdown, powering-on"); |
210 | twl6040_power(twl6040, 1); | |
211 | } | |
212 | } | |
213 | ||
214 | return IRQ_HANDLED; | |
215 | } | |
216 | ||
217 | static int twl6040_power_up_completion(struct twl6040 *twl6040, | |
218 | int naudint) | |
219 | { | |
220 | int time_left; | |
221 | u8 intid; | |
222 | ||
223 | time_left = wait_for_completion_timeout(&twl6040->ready, | |
224 | msecs_to_jiffies(144)); | |
225 | if (!time_left) { | |
226 | intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID); | |
227 | if (!(intid & TWL6040_READYINT)) { | |
2d7c957e | 228 | dev_err(twl6040->dev, |
f19b2823 MLC |
229 | "timeout waiting for READYINT\n"); |
230 | return -ETIMEDOUT; | |
231 | } | |
232 | } | |
233 | ||
234 | return 0; | |
235 | } | |
236 | ||
237 | int twl6040_power(struct twl6040 *twl6040, int on) | |
238 | { | |
239 | int audpwron = twl6040->audpwron; | |
240 | int naudint = twl6040->irq; | |
241 | int ret = 0; | |
242 | ||
243 | mutex_lock(&twl6040->mutex); | |
244 | ||
245 | if (on) { | |
246 | /* already powered-up */ | |
247 | if (twl6040->power_count++) | |
248 | goto out; | |
249 | ||
250 | if (gpio_is_valid(audpwron)) { | |
251 | /* use AUDPWRON line */ | |
252 | gpio_set_value(audpwron, 1); | |
253 | /* wait for power-up completion */ | |
254 | ret = twl6040_power_up_completion(twl6040, naudint); | |
255 | if (ret) { | |
2d7c957e | 256 | dev_err(twl6040->dev, |
f19b2823 MLC |
257 | "automatic power-down failed\n"); |
258 | twl6040->power_count = 0; | |
259 | goto out; | |
260 | } | |
261 | } else { | |
262 | /* use manual power-up sequence */ | |
263 | ret = twl6040_power_up(twl6040); | |
264 | if (ret) { | |
2d7c957e | 265 | dev_err(twl6040->dev, |
f19b2823 MLC |
266 | "manual power-up failed\n"); |
267 | twl6040->power_count = 0; | |
268 | goto out; | |
269 | } | |
270 | } | |
cfb7a33b PU |
271 | /* Default PLL configuration after power up */ |
272 | twl6040->pll = TWL6040_SYSCLK_SEL_LPPLL; | |
f19b2823 MLC |
273 | twl6040->sysclk = 19200000; |
274 | } else { | |
275 | /* already powered-down */ | |
276 | if (!twl6040->power_count) { | |
2d7c957e | 277 | dev_err(twl6040->dev, |
f19b2823 MLC |
278 | "device is already powered-off\n"); |
279 | ret = -EPERM; | |
280 | goto out; | |
281 | } | |
282 | ||
283 | if (--twl6040->power_count) | |
284 | goto out; | |
285 | ||
286 | if (gpio_is_valid(audpwron)) { | |
287 | /* use AUDPWRON line */ | |
288 | gpio_set_value(audpwron, 0); | |
289 | ||
290 | /* power-down sequence latency */ | |
291 | usleep_range(500, 700); | |
292 | } else { | |
293 | /* use manual power-down sequence */ | |
294 | twl6040_power_down(twl6040); | |
295 | } | |
f19b2823 MLC |
296 | twl6040->sysclk = 0; |
297 | } | |
298 | ||
299 | out: | |
300 | mutex_unlock(&twl6040->mutex); | |
301 | return ret; | |
302 | } | |
303 | EXPORT_SYMBOL(twl6040_power); | |
304 | ||
cfb7a33b | 305 | int twl6040_set_pll(struct twl6040 *twl6040, int pll_id, |
f19b2823 MLC |
306 | unsigned int freq_in, unsigned int freq_out) |
307 | { | |
308 | u8 hppllctl, lppllctl; | |
309 | int ret = 0; | |
310 | ||
311 | mutex_lock(&twl6040->mutex); | |
312 | ||
313 | hppllctl = twl6040_reg_read(twl6040, TWL6040_REG_HPPLLCTL); | |
314 | lppllctl = twl6040_reg_read(twl6040, TWL6040_REG_LPPLLCTL); | |
315 | ||
cfb7a33b PU |
316 | switch (pll_id) { |
317 | case TWL6040_SYSCLK_SEL_LPPLL: | |
f19b2823 MLC |
318 | /* low-power PLL divider */ |
319 | switch (freq_out) { | |
320 | case 17640000: | |
321 | lppllctl |= TWL6040_LPLLFIN; | |
322 | break; | |
323 | case 19200000: | |
324 | lppllctl &= ~TWL6040_LPLLFIN; | |
325 | break; | |
326 | default: | |
2d7c957e | 327 | dev_err(twl6040->dev, |
f19b2823 MLC |
328 | "freq_out %d not supported\n", freq_out); |
329 | ret = -EINVAL; | |
330 | goto pll_out; | |
331 | } | |
332 | twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); | |
333 | ||
334 | switch (freq_in) { | |
335 | case 32768: | |
336 | lppllctl |= TWL6040_LPLLENA; | |
337 | twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, | |
338 | lppllctl); | |
339 | mdelay(5); | |
340 | lppllctl &= ~TWL6040_HPLLSEL; | |
341 | twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, | |
342 | lppllctl); | |
343 | hppllctl &= ~TWL6040_HPLLENA; | |
344 | twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, | |
345 | hppllctl); | |
346 | break; | |
347 | default: | |
2d7c957e | 348 | dev_err(twl6040->dev, |
f19b2823 MLC |
349 | "freq_in %d not supported\n", freq_in); |
350 | ret = -EINVAL; | |
351 | goto pll_out; | |
352 | } | |
f19b2823 | 353 | break; |
cfb7a33b | 354 | case TWL6040_SYSCLK_SEL_HPPLL: |
f19b2823 MLC |
355 | /* high-performance PLL can provide only 19.2 MHz */ |
356 | if (freq_out != 19200000) { | |
2d7c957e | 357 | dev_err(twl6040->dev, |
f19b2823 MLC |
358 | "freq_out %d not supported\n", freq_out); |
359 | ret = -EINVAL; | |
360 | goto pll_out; | |
361 | } | |
362 | ||
363 | hppllctl &= ~TWL6040_MCLK_MSK; | |
364 | ||
365 | switch (freq_in) { | |
366 | case 12000000: | |
367 | /* PLL enabled, active mode */ | |
368 | hppllctl |= TWL6040_MCLK_12000KHZ | | |
369 | TWL6040_HPLLENA; | |
370 | break; | |
371 | case 19200000: | |
372 | /* | |
373 | * PLL disabled | |
374 | * (enable PLL if MCLK jitter quality | |
375 | * doesn't meet specification) | |
376 | */ | |
377 | hppllctl |= TWL6040_MCLK_19200KHZ; | |
378 | break; | |
379 | case 26000000: | |
380 | /* PLL enabled, active mode */ | |
381 | hppllctl |= TWL6040_MCLK_26000KHZ | | |
382 | TWL6040_HPLLENA; | |
383 | break; | |
384 | case 38400000: | |
385 | /* PLL enabled, active mode */ | |
386 | hppllctl |= TWL6040_MCLK_38400KHZ | | |
387 | TWL6040_HPLLENA; | |
388 | break; | |
389 | default: | |
2d7c957e | 390 | dev_err(twl6040->dev, |
f19b2823 MLC |
391 | "freq_in %d not supported\n", freq_in); |
392 | ret = -EINVAL; | |
393 | goto pll_out; | |
394 | } | |
395 | ||
396 | /* enable clock slicer to ensure input waveform is square */ | |
397 | hppllctl |= TWL6040_HPLLSQRENA; | |
398 | ||
399 | twl6040_reg_write(twl6040, TWL6040_REG_HPPLLCTL, hppllctl); | |
400 | usleep_range(500, 700); | |
401 | lppllctl |= TWL6040_HPLLSEL; | |
402 | twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); | |
403 | lppllctl &= ~TWL6040_LPLLENA; | |
404 | twl6040_reg_write(twl6040, TWL6040_REG_LPPLLCTL, lppllctl); | |
f19b2823 MLC |
405 | break; |
406 | default: | |
2d7c957e | 407 | dev_err(twl6040->dev, "unknown pll id %d\n", pll_id); |
f19b2823 MLC |
408 | ret = -EINVAL; |
409 | goto pll_out; | |
410 | } | |
411 | ||
412 | twl6040->sysclk = freq_out; | |
cfb7a33b | 413 | twl6040->pll = pll_id; |
f19b2823 MLC |
414 | |
415 | pll_out: | |
416 | mutex_unlock(&twl6040->mutex); | |
417 | return ret; | |
418 | } | |
419 | EXPORT_SYMBOL(twl6040_set_pll); | |
420 | ||
cfb7a33b | 421 | int twl6040_get_pll(struct twl6040 *twl6040) |
f19b2823 | 422 | { |
cfb7a33b PU |
423 | if (twl6040->power_count) |
424 | return twl6040->pll; | |
425 | else | |
426 | return -ENODEV; | |
f19b2823 MLC |
427 | } |
428 | EXPORT_SYMBOL(twl6040_get_pll); | |
429 | ||
430 | unsigned int twl6040_get_sysclk(struct twl6040 *twl6040) | |
431 | { | |
432 | return twl6040->sysclk; | |
433 | } | |
434 | EXPORT_SYMBOL(twl6040_get_sysclk); | |
435 | ||
0f962ae2 PU |
436 | static struct resource twl6040_vibra_rsrc[] = { |
437 | { | |
438 | .flags = IORESOURCE_IRQ, | |
439 | }, | |
440 | }; | |
441 | ||
442 | static struct resource twl6040_codec_rsrc[] = { | |
443 | { | |
444 | .flags = IORESOURCE_IRQ, | |
445 | }, | |
446 | }; | |
447 | ||
f19b2823 MLC |
448 | static int __devinit twl6040_probe(struct platform_device *pdev) |
449 | { | |
450 | struct twl4030_audio_data *pdata = pdev->dev.platform_data; | |
451 | struct twl6040 *twl6040; | |
452 | struct mfd_cell *cell = NULL; | |
453 | int ret, children = 0; | |
454 | ||
455 | if (!pdata) { | |
456 | dev_err(&pdev->dev, "Platform data is missing\n"); | |
457 | return -EINVAL; | |
458 | } | |
459 | ||
d20e1d21 PU |
460 | /* In order to operate correctly we need valid interrupt config */ |
461 | if (!pdata->naudint_irq || !pdata->irq_base) { | |
462 | dev_err(&pdev->dev, "Invalid IRQ configuration\n"); | |
463 | return -EINVAL; | |
464 | } | |
465 | ||
f19b2823 MLC |
466 | twl6040 = kzalloc(sizeof(struct twl6040), GFP_KERNEL); |
467 | if (!twl6040) | |
468 | return -ENOMEM; | |
469 | ||
470 | platform_set_drvdata(pdev, twl6040); | |
471 | ||
f19b2823 MLC |
472 | twl6040->dev = &pdev->dev; |
473 | twl6040->audpwron = pdata->audpwron_gpio; | |
474 | twl6040->irq = pdata->naudint_irq; | |
475 | twl6040->irq_base = pdata->irq_base; | |
476 | ||
477 | mutex_init(&twl6040->mutex); | |
478 | mutex_init(&twl6040->io_mutex); | |
479 | init_completion(&twl6040->ready); | |
480 | ||
481 | twl6040->rev = twl6040_reg_read(twl6040, TWL6040_REG_ASICREV); | |
482 | ||
483 | if (gpio_is_valid(twl6040->audpwron)) { | |
484 | ret = gpio_request(twl6040->audpwron, "audpwron"); | |
485 | if (ret) | |
486 | goto gpio1_err; | |
487 | ||
488 | ret = gpio_direction_output(twl6040->audpwron, 0); | |
489 | if (ret) | |
490 | goto gpio2_err; | |
491 | } | |
492 | ||
493 | /* ERRATA: Automatic power-up is not possible in ES1.0 */ | |
a69882ae | 494 | if (twl6040_get_revid(twl6040) == TWL6040_REV_ES1_0) |
f19b2823 MLC |
495 | twl6040->audpwron = -EINVAL; |
496 | ||
d20e1d21 PU |
497 | /* codec interrupt */ |
498 | ret = twl6040_irq_init(twl6040); | |
499 | if (ret) | |
500 | goto gpio2_err; | |
501 | ||
1b7c4725 PU |
502 | ret = request_threaded_irq(twl6040->irq_base + TWL6040_IRQ_READY, |
503 | NULL, twl6040_naudint_handler, 0, | |
504 | "twl6040_irq_ready", twl6040); | |
d20e1d21 PU |
505 | if (ret) { |
506 | dev_err(twl6040->dev, "READY IRQ request failed: %d\n", | |
507 | ret); | |
508 | goto irq_err; | |
f19b2823 MLC |
509 | } |
510 | ||
511 | /* dual-access registers controlled by I2C only */ | |
512 | twl6040_set_bits(twl6040, TWL6040_REG_ACCCTL, TWL6040_I2CSEL); | |
513 | ||
514 | if (pdata->codec) { | |
0f962ae2 PU |
515 | int irq = twl6040->irq_base + TWL6040_IRQ_PLUG; |
516 | ||
f19b2823 MLC |
517 | cell = &twl6040->cells[children]; |
518 | cell->name = "twl6040-codec"; | |
0f962ae2 PU |
519 | twl6040_codec_rsrc[0].start = irq; |
520 | twl6040_codec_rsrc[0].end = irq; | |
521 | cell->resources = twl6040_codec_rsrc; | |
522 | cell->num_resources = ARRAY_SIZE(twl6040_codec_rsrc); | |
6c448637 PU |
523 | cell->platform_data = pdata->codec; |
524 | cell->pdata_size = sizeof(*pdata->codec); | |
f19b2823 MLC |
525 | children++; |
526 | } | |
527 | ||
528 | if (pdata->vibra) { | |
0f962ae2 PU |
529 | int irq = twl6040->irq_base + TWL6040_IRQ_VIB; |
530 | ||
f19b2823 MLC |
531 | cell = &twl6040->cells[children]; |
532 | cell->name = "twl6040-vibra"; | |
0f962ae2 PU |
533 | twl6040_vibra_rsrc[0].start = irq; |
534 | twl6040_vibra_rsrc[0].end = irq; | |
535 | cell->resources = twl6040_vibra_rsrc; | |
536 | cell->num_resources = ARRAY_SIZE(twl6040_vibra_rsrc); | |
537 | ||
f19b2823 MLC |
538 | cell->platform_data = pdata->vibra; |
539 | cell->pdata_size = sizeof(*pdata->vibra); | |
540 | children++; | |
541 | } | |
542 | ||
543 | if (children) { | |
544 | ret = mfd_add_devices(&pdev->dev, pdev->id, twl6040->cells, | |
545 | children, NULL, 0); | |
546 | if (ret) | |
547 | goto mfd_err; | |
548 | } else { | |
549 | dev_err(&pdev->dev, "No platform data found for children\n"); | |
550 | ret = -ENODEV; | |
551 | goto mfd_err; | |
552 | } | |
553 | ||
554 | return 0; | |
555 | ||
556 | mfd_err: | |
1b7c4725 | 557 | free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); |
f19b2823 | 558 | irq_err: |
d20e1d21 | 559 | twl6040_irq_exit(twl6040); |
f19b2823 MLC |
560 | gpio2_err: |
561 | if (gpio_is_valid(twl6040->audpwron)) | |
562 | gpio_free(twl6040->audpwron); | |
563 | gpio1_err: | |
564 | platform_set_drvdata(pdev, NULL); | |
565 | kfree(twl6040); | |
f19b2823 MLC |
566 | return ret; |
567 | } | |
568 | ||
569 | static int __devexit twl6040_remove(struct platform_device *pdev) | |
570 | { | |
571 | struct twl6040 *twl6040 = platform_get_drvdata(pdev); | |
572 | ||
573 | if (twl6040->power_count) | |
574 | twl6040_power(twl6040, 0); | |
575 | ||
576 | if (gpio_is_valid(twl6040->audpwron)) | |
577 | gpio_free(twl6040->audpwron); | |
578 | ||
1b7c4725 | 579 | free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); |
d20e1d21 | 580 | twl6040_irq_exit(twl6040); |
f19b2823 MLC |
581 | |
582 | mfd_remove_devices(&pdev->dev); | |
583 | platform_set_drvdata(pdev, NULL); | |
584 | kfree(twl6040); | |
f19b2823 MLC |
585 | |
586 | return 0; | |
587 | } | |
588 | ||
589 | static struct platform_driver twl6040_driver = { | |
590 | .probe = twl6040_probe, | |
591 | .remove = __devexit_p(twl6040_remove), | |
592 | .driver = { | |
593 | .owner = THIS_MODULE, | |
594 | .name = "twl6040", | |
595 | }, | |
596 | }; | |
597 | ||
598 | static int __devinit twl6040_init(void) | |
599 | { | |
600 | return platform_driver_register(&twl6040_driver); | |
601 | } | |
602 | module_init(twl6040_init); | |
603 | ||
604 | static void __devexit twl6040_exit(void) | |
605 | { | |
606 | platform_driver_unregister(&twl6040_driver); | |
607 | } | |
608 | ||
609 | module_exit(twl6040_exit); | |
610 | ||
611 | MODULE_DESCRIPTION("TWL6040 MFD"); | |
612 | MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); | |
613 | MODULE_AUTHOR("Jorge Eduardo Candelaria <jorge.candelaria@ti.com>"); | |
614 | MODULE_LICENSE("GPL"); | |
615 | MODULE_ALIAS("platform:twl6040"); |