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perf tools: Don't clone maps from parent when synthesizing forks
[linux/fpc-iii.git] / drivers / media / tuners / m88rs6000t.c
blob3df2f23a40beb6161a692c48de4a9d35770ad874
1 /*
2 * Driver for the internal tuner of Montage M88RS6000
3 *
4 * Copyright (C) 2014 Max nibble <nibble.max@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16
17 #include "m88rs6000t.h"
18 #include <linux/regmap.h>
19
20 struct m88rs6000t_dev {
21 struct m88rs6000t_config cfg;
22 struct i2c_client *client;
23 struct regmap *regmap;
24 u32 frequency_khz;
25 };
26
27 struct m88rs6000t_reg_val {
28 u8 reg;
29 u8 val;
30 };
31
32 /* set demod main mclk and ts mclk */
33 static int m88rs6000t_set_demod_mclk(struct dvb_frontend *fe)
34 {
35 struct m88rs6000t_dev *dev = fe->tuner_priv;
36 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
37 u8 reg11, reg15, reg16, reg1D, reg1E, reg1F;
38 u8 N, f0 = 0, f1 = 0, f2 = 0, f3 = 0;
39 u16 pll_div_fb;
40 u32 div, ts_mclk;
41 unsigned int utmp;
42 int ret;
43
44 /* select demod main mclk */
45 ret = regmap_read(dev->regmap, 0x15, &utmp);
46 if (ret)
47 goto err;
48 reg15 = utmp;
49 if (c->symbol_rate > 45010000) {
50 reg11 = 0x0E;
51 reg15 |= 0x02;
52 reg16 = 115; /* mclk = 110.25MHz */
53 } else {
54 reg11 = 0x0A;
55 reg15 &= ~0x02;
56 reg16 = 96; /* mclk = 96MHz */
57 }
58
59 /* set ts mclk */
60 if (c->delivery_system == SYS_DVBS)
61 ts_mclk = 96000;
62 else
63 ts_mclk = 144000;
64
65 pll_div_fb = (reg15 & 0x01) << 8;
66 pll_div_fb += reg16;
67 pll_div_fb += 32;
68
69 div = 36000 * pll_div_fb;
70 div /= ts_mclk;
71
72 if (div <= 32) {
73 N = 2;
74 f0 = 0;
75 f1 = div / 2;
76 f2 = div - f1;
77 f3 = 0;
78 } else if (div <= 48) {
79 N = 3;
80 f0 = div / 3;
81 f1 = (div - f0) / 2;
82 f2 = div - f0 - f1;
83 f3 = 0;
84 } else if (div <= 64) {
85 N = 4;
86 f0 = div / 4;
87 f1 = (div - f0) / 3;
88 f2 = (div - f0 - f1) / 2;
89 f3 = div - f0 - f1 - f2;
90 } else {
91 N = 4;
92 f0 = 16;
93 f1 = 16;
94 f2 = 16;
95 f3 = 16;
96 }
97
98 if (f0 == 16)
99 f0 = 0;
100 if (f1 == 16)
101 f1 = 0;
102 if (f2 == 16)
103 f2 = 0;
104 if (f3 == 16)
105 f3 = 0;
106
107 ret = regmap_read(dev->regmap, 0x1D, &utmp);
108 if (ret)
109 goto err;
110 reg1D = utmp;
111 reg1D &= ~0x03;
112 reg1D |= N - 1;
113 reg1E = ((f3 << 4) + f2) & 0xFF;
114 reg1F = ((f1 << 4) + f0) & 0xFF;
115
116 /* program and recalibrate demod PLL */
117 ret = regmap_write(dev->regmap, 0x05, 0x40);
118 if (ret)
119 goto err;
120 ret = regmap_write(dev->regmap, 0x11, 0x08);
121 if (ret)
122 goto err;
123 ret = regmap_write(dev->regmap, 0x15, reg15);
124 if (ret)
125 goto err;
126 ret = regmap_write(dev->regmap, 0x16, reg16);
127 if (ret)
128 goto err;
129 ret = regmap_write(dev->regmap, 0x1D, reg1D);
130 if (ret)
131 goto err;
132 ret = regmap_write(dev->regmap, 0x1E, reg1E);
133 if (ret)
134 goto err;
135 ret = regmap_write(dev->regmap, 0x1F, reg1F);
136 if (ret)
137 goto err;
138 ret = regmap_write(dev->regmap, 0x17, 0xc1);
139 if (ret)
140 goto err;
141 ret = regmap_write(dev->regmap, 0x17, 0x81);
142 if (ret)
143 goto err;
144 usleep_range(5000, 50000);
145 ret = regmap_write(dev->regmap, 0x05, 0x00);
146 if (ret)
147 goto err;
148 ret = regmap_write(dev->regmap, 0x11, reg11);
149 if (ret)
150 goto err;
151 usleep_range(5000, 50000);
152 err:
153 if (ret)
154 dev_dbg(&dev->client->dev, "failed=%d\n", ret);
155 return ret;
156 }
157
158 static int m88rs6000t_set_pll_freq(struct m88rs6000t_dev *dev,
159 u32 tuner_freq_MHz)
160 {
161 u32 fcry_KHz, ulNDiv1, ulNDiv2, ulNDiv;
162 u8 refDiv, ucLoDiv1, ucLomod1, ucLoDiv2, ucLomod2, ucLoDiv, ucLomod;
163 u8 reg27, reg29, reg42, reg42buf;
164 unsigned int utmp;
165 int ret;
166
167 fcry_KHz = 27000; /* in kHz */
168 refDiv = 27;
169
170 ret = regmap_write(dev->regmap, 0x36, (refDiv - 8));
171 if (ret)
172 goto err;
173 ret = regmap_write(dev->regmap, 0x31, 0x00);
174 if (ret)
175 goto err;
176 ret = regmap_write(dev->regmap, 0x2c, 0x02);
177 if (ret)
178 goto err;
179
180 if (tuner_freq_MHz >= 1550) {
181 ucLoDiv1 = 2;
182 ucLomod1 = 0;
183 ucLoDiv2 = 2;
184 ucLomod2 = 0;
185 } else if (tuner_freq_MHz >= 1380) {
186 ucLoDiv1 = 3;
187 ucLomod1 = 16;
188 ucLoDiv2 = 2;
189 ucLomod2 = 0;
190 } else if (tuner_freq_MHz >= 1070) {
191 ucLoDiv1 = 3;
192 ucLomod1 = 16;
193 ucLoDiv2 = 3;
194 ucLomod2 = 16;
195 } else if (tuner_freq_MHz >= 1000) {
196 ucLoDiv1 = 3;
197 ucLomod1 = 16;
198 ucLoDiv2 = 4;
199 ucLomod2 = 64;
200 } else if (tuner_freq_MHz >= 775) {
201 ucLoDiv1 = 4;
202 ucLomod1 = 64;
203 ucLoDiv2 = 4;
204 ucLomod2 = 64;
205 } else if (tuner_freq_MHz >= 700) {
206 ucLoDiv1 = 6;
207 ucLomod1 = 48;
208 ucLoDiv2 = 4;
209 ucLomod2 = 64;
210 } else if (tuner_freq_MHz >= 520) {
211 ucLoDiv1 = 6;
212 ucLomod1 = 48;
213 ucLoDiv2 = 6;
214 ucLomod2 = 48;
215 } else {
216 ucLoDiv1 = 8;
217 ucLomod1 = 96;
218 ucLoDiv2 = 8;
219 ucLomod2 = 96;
220 }
221
222 ulNDiv1 = ((tuner_freq_MHz * ucLoDiv1 * 1000) * refDiv
223 / fcry_KHz - 1024) / 2;
224 ulNDiv2 = ((tuner_freq_MHz * ucLoDiv2 * 1000) * refDiv
225 / fcry_KHz - 1024) / 2;
226
227 reg27 = (((ulNDiv1 >> 8) & 0x0F) + ucLomod1) & 0x7F;
228 ret = regmap_write(dev->regmap, 0x27, reg27);
229 if (ret)
230 goto err;
231 ret = regmap_write(dev->regmap, 0x28, (u8)(ulNDiv1 & 0xFF));
232 if (ret)
233 goto err;
234 reg29 = (((ulNDiv2 >> 8) & 0x0F) + ucLomod2) & 0x7f;
235 ret = regmap_write(dev->regmap, 0x29, reg29);
236 if (ret)
237 goto err;
238 ret = regmap_write(dev->regmap, 0x2a, (u8)(ulNDiv2 & 0xFF));
239 if (ret)
240 goto err;
241 ret = regmap_write(dev->regmap, 0x2F, 0xf5);
242 if (ret)
243 goto err;
244 ret = regmap_write(dev->regmap, 0x30, 0x05);
245 if (ret)
246 goto err;
247 ret = regmap_write(dev->regmap, 0x08, 0x1f);
248 if (ret)
249 goto err;
250 ret = regmap_write(dev->regmap, 0x08, 0x3f);
251 if (ret)
252 goto err;
253 ret = regmap_write(dev->regmap, 0x09, 0x20);
254 if (ret)
255 goto err;
256 ret = regmap_write(dev->regmap, 0x09, 0x00);
257 if (ret)
258 goto err;
259 ret = regmap_write(dev->regmap, 0x3e, 0x11);
260 if (ret)
261 goto err;
262 ret = regmap_write(dev->regmap, 0x08, 0x2f);
263 if (ret)
264 goto err;
265 ret = regmap_write(dev->regmap, 0x08, 0x3f);
266 if (ret)
267 goto err;
268 ret = regmap_write(dev->regmap, 0x09, 0x10);
269 if (ret)
270 goto err;
271 ret = regmap_write(dev->regmap, 0x09, 0x00);
272 if (ret)
273 goto err;
274 usleep_range(2000, 50000);
275
276 ret = regmap_read(dev->regmap, 0x42, &utmp);
277 if (ret)
278 goto err;
279 reg42 = utmp;
280
281 ret = regmap_write(dev->regmap, 0x3e, 0x10);
282 if (ret)
283 goto err;
284 ret = regmap_write(dev->regmap, 0x08, 0x2f);
285 if (ret)
286 goto err;
287 ret = regmap_write(dev->regmap, 0x08, 0x3f);
288 if (ret)
289 goto err;
290 ret = regmap_write(dev->regmap, 0x09, 0x10);
291 if (ret)
292 goto err;
293 ret = regmap_write(dev->regmap, 0x09, 0x00);
294 if (ret)
295 goto err;
296 usleep_range(2000, 50000);
297
298 ret = regmap_read(dev->regmap, 0x42, &utmp);
299 if (ret)
300 goto err;
301 reg42buf = utmp;
302 if (reg42buf < reg42) {
303 ret = regmap_write(dev->regmap, 0x3e, 0x11);
304 if (ret)
305 goto err;
306 }
307 usleep_range(5000, 50000);
308
309 ret = regmap_read(dev->regmap, 0x2d, &utmp);
310 if (ret)
311 goto err;
312 ret = regmap_write(dev->regmap, 0x2d, utmp);
313 if (ret)
314 goto err;
315 ret = regmap_read(dev->regmap, 0x2e, &utmp);
316 if (ret)
317 goto err;
318 ret = regmap_write(dev->regmap, 0x2e, utmp);
319 if (ret)
320 goto err;
321
322 ret = regmap_read(dev->regmap, 0x27, &utmp);
323 if (ret)
324 goto err;
325 reg27 = utmp & 0x70;
326 ret = regmap_read(dev->regmap, 0x83, &utmp);
327 if (ret)
328 goto err;
329 if (reg27 == (utmp & 0x70)) {
330 ucLoDiv = ucLoDiv1;
331 ulNDiv = ulNDiv1;
332 ucLomod = ucLomod1 / 16;
333 } else {
334 ucLoDiv = ucLoDiv2;
335 ulNDiv = ulNDiv2;
336 ucLomod = ucLomod2 / 16;
337 }
338
339 if ((ucLoDiv == 3) || (ucLoDiv == 6)) {
340 refDiv = 18;
341 ret = regmap_write(dev->regmap, 0x36, (refDiv - 8));
342 if (ret)
343 goto err;
344 ulNDiv = ((tuner_freq_MHz * ucLoDiv * 1000) * refDiv
345 / fcry_KHz - 1024) / 2;
346 }
347
348 reg27 = (0x80 + ((ucLomod << 4) & 0x70)
349 + ((ulNDiv >> 8) & 0x0F)) & 0xFF;
350 ret = regmap_write(dev->regmap, 0x27, reg27);
351 if (ret)
352 goto err;
353 ret = regmap_write(dev->regmap, 0x28, (u8)(ulNDiv & 0xFF));
354 if (ret)
355 goto err;
356 ret = regmap_write(dev->regmap, 0x29, 0x80);
357 if (ret)
358 goto err;
359 ret = regmap_write(dev->regmap, 0x31, 0x03);
360 if (ret)
361 goto err;
362
363 if (ucLoDiv == 3)
364 utmp = 0xCE;
365 else
366 utmp = 0x8A;
367 ret = regmap_write(dev->regmap, 0x3b, utmp);
368 if (ret)
369 goto err;
370
371 dev->frequency_khz = fcry_KHz * (ulNDiv * 2 + 1024) / refDiv / ucLoDiv;
372
373 dev_dbg(&dev->client->dev,
374 "actual tune frequency=%d\n", dev->frequency_khz);
375 err:
376 if (ret)
377 dev_dbg(&dev->client->dev, "failed=%d\n", ret);
378 return ret;
379 }
380
381 static int m88rs6000t_set_bb(struct m88rs6000t_dev *dev,
382 u32 symbol_rate_KSs, s32 lpf_offset_KHz)
383 {
384 u32 f3dB;
385 u8 reg40;
386
387 f3dB = symbol_rate_KSs * 9 / 14 + 2000;
388 f3dB += lpf_offset_KHz;
389 f3dB = clamp_val(f3dB, 6000U, 43000U);
390 reg40 = f3dB / 1000;
391 return regmap_write(dev->regmap, 0x40, reg40);
392 }
393
394 static int m88rs6000t_set_params(struct dvb_frontend *fe)
395 {
396 struct m88rs6000t_dev *dev = fe->tuner_priv;
397 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
398 int ret;
399 s32 lpf_offset_KHz;
400 u32 realFreq, freq_MHz;
401
402 dev_dbg(&dev->client->dev,
403 "frequency=%d symbol_rate=%d\n",
404 c->frequency, c->symbol_rate);
405
406 if (c->symbol_rate < 5000000)
407 lpf_offset_KHz = 3000;
408 else
409 lpf_offset_KHz = 0;
410
411 realFreq = c->frequency + lpf_offset_KHz;
412 /* set tuner pll.*/
413 freq_MHz = (realFreq + 500) / 1000;
414 ret = m88rs6000t_set_pll_freq(dev, freq_MHz);
415 if (ret)
416 goto err;
417 ret = m88rs6000t_set_bb(dev, c->symbol_rate / 1000, lpf_offset_KHz);
418 if (ret)
419 goto err;
420 ret = regmap_write(dev->regmap, 0x00, 0x01);
421 if (ret)
422 goto err;
423 ret = regmap_write(dev->regmap, 0x00, 0x00);
424 if (ret)
425 goto err;
426 /* set demod mlck */
427 ret = m88rs6000t_set_demod_mclk(fe);
428 err:
429 if (ret)
430 dev_dbg(&dev->client->dev, "failed=%d\n", ret);
431 return ret;
432 }
433
434 static int m88rs6000t_init(struct dvb_frontend *fe)
435 {
436 struct m88rs6000t_dev *dev = fe->tuner_priv;
437 int ret;
438
439 dev_dbg(&dev->client->dev, "%s:\n", __func__);
440
441 ret = regmap_update_bits(dev->regmap, 0x11, 0x08, 0x08);
442 if (ret)
443 goto err;
444 usleep_range(5000, 50000);
445 ret = regmap_update_bits(dev->regmap, 0x10, 0x01, 0x01);
446 if (ret)
447 goto err;
448 usleep_range(10000, 50000);
449 ret = regmap_write(dev->regmap, 0x07, 0x7d);
450 err:
451 if (ret)
452 dev_dbg(&dev->client->dev, "failed=%d\n", ret);
453 return ret;
454 }
455
456 static int m88rs6000t_sleep(struct dvb_frontend *fe)
457 {
458 struct m88rs6000t_dev *dev = fe->tuner_priv;
459 int ret;
460
461 dev_dbg(&dev->client->dev, "%s:\n", __func__);
462
463 ret = regmap_write(dev->regmap, 0x07, 0x6d);
464 if (ret) {
465 dev_dbg(&dev->client->dev, "failed=%d\n", ret);
466 return ret;
467 }
468 usleep_range(5000, 10000);
469 return 0;
470 }
471
472 static int m88rs6000t_get_frequency(struct dvb_frontend *fe, u32 *frequency)
473 {
474 struct m88rs6000t_dev *dev = fe->tuner_priv;
475
476 dev_dbg(&dev->client->dev, "\n");
477
478 *frequency = dev->frequency_khz;
479 return 0;
480 }
481
482 static int m88rs6000t_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
483 {
484 struct m88rs6000t_dev *dev = fe->tuner_priv;
485
486 dev_dbg(&dev->client->dev, "\n");
487
488 *frequency = 0; /* Zero-IF */
489 return 0;
490 }
491
492
493 static int m88rs6000t_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
494 {
495 struct m88rs6000t_dev *dev = fe->tuner_priv;
496 unsigned int val, i;
497 int ret;
498 u16 gain;
499 u32 PGA2_cri_GS = 46, PGA2_crf_GS = 290, TIA_GS = 290;
500 u32 RF_GC = 1200, IF_GC = 1100, BB_GC = 300;
501 u32 PGA2_GC = 300, TIA_GC = 300, PGA2_cri = 0, PGA2_crf = 0;
502 u32 RFG = 0, IFG = 0, BBG = 0, PGA2G = 0, TIAG = 0;
503 u32 RFGS[13] = {0, 245, 266, 268, 270, 285,
504 298, 295, 283, 285, 285, 300, 300};
505 u32 IFGS[12] = {0, 300, 230, 270, 270, 285,
506 295, 285, 290, 295, 295, 310};
507 u32 BBGS[14] = {0, 286, 275, 290, 294, 300, 290,
508 290, 285, 283, 260, 295, 290, 260};
509
510 ret = regmap_read(dev->regmap, 0x5A, &val);
511 if (ret)
512 goto err;
513 RF_GC = val & 0x0f;
514
515 ret = regmap_read(dev->regmap, 0x5F, &val);
516 if (ret)
517 goto err;
518 IF_GC = val & 0x0f;
519
520 ret = regmap_read(dev->regmap, 0x3F, &val);
521 if (ret)
522 goto err;
523 TIA_GC = (val >> 4) & 0x07;
524
525 ret = regmap_read(dev->regmap, 0x77, &val);
526 if (ret)
527 goto err;
528 BB_GC = (val >> 4) & 0x0f;
529
530 ret = regmap_read(dev->regmap, 0x76, &val);
531 if (ret)
532 goto err;
533 PGA2_GC = val & 0x3f;
534 PGA2_cri = PGA2_GC >> 2;
535 PGA2_crf = PGA2_GC & 0x03;
536
537 for (i = 0; i <= RF_GC; i++)
538 RFG += RFGS[i];
539
540 if (RF_GC == 0)
541 RFG += 400;
542 if (RF_GC == 1)
543 RFG += 300;
544 if (RF_GC == 2)
545 RFG += 200;
546 if (RF_GC == 3)
547 RFG += 100;
548
549 for (i = 0; i <= IF_GC; i++)
550 IFG += IFGS[i];
551
552 TIAG = TIA_GC * TIA_GS;
553
554 for (i = 0; i <= BB_GC; i++)
555 BBG += BBGS[i];
556
557 PGA2G = PGA2_cri * PGA2_cri_GS + PGA2_crf * PGA2_crf_GS;
558
559 gain = RFG + IFG - TIAG + BBG + PGA2G;
560
561 /* scale value to 0x0000-0xffff */
562 gain = clamp_val(gain, 1000U, 10500U);
563 *strength = (10500 - gain) * 0xffff / (10500 - 1000);
564 err:
565 if (ret)
566 dev_dbg(&dev->client->dev, "failed=%d\n", ret);
567 return ret;
568 }
569
570 static const struct dvb_tuner_ops m88rs6000t_tuner_ops = {
571 .info = {
572 .name = "Montage M88RS6000 Internal Tuner",
573 .frequency_min_hz = 950 * MHz,
574 .frequency_max_hz = 2150 * MHz,
575 },
576
577 .init = m88rs6000t_init,
578 .sleep = m88rs6000t_sleep,
579 .set_params = m88rs6000t_set_params,
580 .get_frequency = m88rs6000t_get_frequency,
581 .get_if_frequency = m88rs6000t_get_if_frequency,
582 .get_rf_strength = m88rs6000t_get_rf_strength,
583 };
584
585 static int m88rs6000t_probe(struct i2c_client *client,
586 const struct i2c_device_id *id)
587 {
588 struct m88rs6000t_config *cfg = client->dev.platform_data;
589 struct dvb_frontend *fe = cfg->fe;
590 struct m88rs6000t_dev *dev;
591 int ret, i;
592 unsigned int utmp;
593 static const struct regmap_config regmap_config = {
594 .reg_bits = 8,
595 .val_bits = 8,
596 };
597 static const struct m88rs6000t_reg_val reg_vals[] = {
598 {0x10, 0xfb},
599 {0x24, 0x38},
600 {0x11, 0x0a},
601 {0x12, 0x00},
602 {0x2b, 0x1c},
603 {0x44, 0x48},
604 {0x54, 0x24},
605 {0x55, 0x06},
606 {0x59, 0x00},
607 {0x5b, 0x4c},
608 {0x60, 0x8b},
609 {0x61, 0xf4},
610 {0x65, 0x07},
611 {0x6d, 0x6f},
612 {0x6e, 0x31},
613 {0x3c, 0xf3},
614 {0x37, 0x0f},
615 {0x48, 0x28},
616 {0x49, 0xd8},
617 {0x70, 0x66},
618 {0x71, 0xCF},
619 {0x72, 0x81},
620 {0x73, 0xA7},
621 {0x74, 0x4F},
622 {0x75, 0xFC},
623 };
624
625 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
626 if (!dev) {
627 ret = -ENOMEM;
628 dev_err(&client->dev, "kzalloc() failed\n");
629 goto err;
630 }
631
632 memcpy(&dev->cfg, cfg, sizeof(struct m88rs6000t_config));
633 dev->client = client;
634 dev->regmap = devm_regmap_init_i2c(client, &regmap_config);
635 if (IS_ERR(dev->regmap)) {
636 ret = PTR_ERR(dev->regmap);
637 goto err;
638 }
639
640 ret = regmap_update_bits(dev->regmap, 0x11, 0x08, 0x08);
641 if (ret)
642 goto err;
643 usleep_range(5000, 50000);
644 ret = regmap_update_bits(dev->regmap, 0x10, 0x01, 0x01);
645 if (ret)
646 goto err;
647 usleep_range(10000, 50000);
648 ret = regmap_write(dev->regmap, 0x07, 0x7d);
649 if (ret)
650 goto err;
651 ret = regmap_write(dev->regmap, 0x04, 0x01);
652 if (ret)
653 goto err;
654
655 /* check tuner chip id */
656 ret = regmap_read(dev->regmap, 0x01, &utmp);
657 if (ret)
658 goto err;
659 dev_info(&dev->client->dev, "chip_id=%02x\n", utmp);
660 if (utmp != 0x64) {
661 ret = -ENODEV;
662 goto err;
663 }
664
665 /* tuner init. */
666 ret = regmap_write(dev->regmap, 0x05, 0x40);
667 if (ret)
668 goto err;
669 ret = regmap_write(dev->regmap, 0x11, 0x08);
670 if (ret)
671 goto err;
672 ret = regmap_write(dev->regmap, 0x15, 0x6c);
673 if (ret)
674 goto err;
675 ret = regmap_write(dev->regmap, 0x17, 0xc1);
676 if (ret)
677 goto err;
678 ret = regmap_write(dev->regmap, 0x17, 0x81);
679 if (ret)
680 goto err;
681 usleep_range(10000, 50000);
682 ret = regmap_write(dev->regmap, 0x05, 0x00);
683 if (ret)
684 goto err;
685 ret = regmap_write(dev->regmap, 0x11, 0x0a);
686 if (ret)
687 goto err;
688
689 for (i = 0; i < ARRAY_SIZE(reg_vals); i++) {
690 ret = regmap_write(dev->regmap,
691 reg_vals[i].reg, reg_vals[i].val);
692 if (ret)
693 goto err;
694 }
695
696 dev_info(&dev->client->dev, "Montage M88RS6000 internal tuner successfully identified\n");
697
698 fe->tuner_priv = dev;
699 memcpy(&fe->ops.tuner_ops, &m88rs6000t_tuner_ops,
700 sizeof(struct dvb_tuner_ops));
701 i2c_set_clientdata(client, dev);
702 return 0;
703 err:
704 dev_dbg(&client->dev, "failed=%d\n", ret);
705 kfree(dev);
706 return ret;
707 }
708
709 static int m88rs6000t_remove(struct i2c_client *client)
710 {
711 struct m88rs6000t_dev *dev = i2c_get_clientdata(client);
712 struct dvb_frontend *fe = dev->cfg.fe;
713
714 dev_dbg(&client->dev, "\n");
715
716 memset(&fe->ops.tuner_ops, 0, sizeof(struct dvb_tuner_ops));
717 fe->tuner_priv = NULL;
718 kfree(dev);
719
720 return 0;
721 }
722
723 static const struct i2c_device_id m88rs6000t_id[] = {
724 {"m88rs6000t", 0},
725 {}
726 };
727 MODULE_DEVICE_TABLE(i2c, m88rs6000t_id);
728
729 static struct i2c_driver m88rs6000t_driver = {
730 .driver = {
731 .name = "m88rs6000t",
732 },
733 .probe = m88rs6000t_probe,
734 .remove = m88rs6000t_remove,
735 .id_table = m88rs6000t_id,
736 };
737
738 module_i2c_driver(m88rs6000t_driver);
739
740 MODULE_AUTHOR("Max nibble <nibble.max@gmail.com>");
741 MODULE_DESCRIPTION("Montage M88RS6000 internal tuner driver");
742 MODULE_LICENSE("GPL");
Linux with added FPC-III support