1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
|
/*
* Sony CXD2820R demodulator driver
*
* Copyright (C) 2010 Antti Palosaari <crope@iki.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "cxd2820r_priv.h"
/* Write register table */
int cxd2820r_wr_reg_val_mask_tab(struct cxd2820r_priv *priv,
const struct reg_val_mask *tab, int tab_len)
{
struct i2c_client *client = priv->client[0];
int ret;
unsigned int i, reg, mask, val;
struct regmap *regmap;
dev_dbg(&client->dev, "tab_len=%d\n", tab_len);
for (i = 0; i < tab_len; i++) {
if ((tab[i].reg >> 16) & 0x1)
regmap = priv->regmap[1];
else
regmap = priv->regmap[0];
reg = (tab[i].reg >> 0) & 0xffff;
val = tab[i].val;
mask = tab[i].mask;
if (mask == 0xff)
ret = regmap_write(regmap, reg, val);
else
ret = regmap_write_bits(regmap, reg, mask, val);
if (ret)
goto error;
}
return 0;
error:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
int cxd2820r_gpio(struct dvb_frontend *fe, u8 *gpio)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
u8 tmp0, tmp1;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
/* update GPIOs only when needed */
if (!memcmp(gpio, priv->gpio, sizeof(priv->gpio)))
return 0;
tmp0 = 0x00;
tmp1 = 0x00;
for (i = 0; i < sizeof(priv->gpio); i++) {
/* enable / disable */
if (gpio[i] & CXD2820R_GPIO_E)
tmp0 |= (2 << 6) >> (2 * i);
else
tmp0 |= (1 << 6) >> (2 * i);
/* input / output */
if (gpio[i] & CXD2820R_GPIO_I)
tmp1 |= (1 << (3 + i));
else
tmp1 |= (0 << (3 + i));
/* high / low */
if (gpio[i] & CXD2820R_GPIO_H)
tmp1 |= (1 << (0 + i));
else
tmp1 |= (0 << (0 + i));
dev_dbg(&client->dev, "gpio i=%d %02x %02x\n", i, tmp0, tmp1);
}
dev_dbg(&client->dev, "wr gpio=%02x %02x\n", tmp0, tmp1);
/* write bits [7:2] */
ret = regmap_update_bits(priv->regmap[0], 0x0089, 0xfc, tmp0);
if (ret)
goto error;
/* write bits [5:0] */
ret = regmap_update_bits(priv->regmap[0], 0x008e, 0x3f, tmp1);
if (ret)
goto error;
memcpy(priv->gpio, gpio, sizeof(priv->gpio));
return ret;
error:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int cxd2820r_set_frontend(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_init_t(fe);
if (ret < 0)
goto err;
ret = cxd2820r_set_frontend_t(fe);
if (ret < 0)
goto err;
break;
case SYS_DVBT2:
ret = cxd2820r_init_t(fe);
if (ret < 0)
goto err;
ret = cxd2820r_set_frontend_t2(fe);
if (ret < 0)
goto err;
break;
case SYS_DVBC_ANNEX_A:
ret = cxd2820r_init_c(fe);
if (ret < 0)
goto err;
ret = cxd2820r_set_frontend_c(fe);
if (ret < 0)
goto err;
break;
default:
dev_dbg(&client->dev, "invalid delivery_system\n");
ret = -EINVAL;
break;
}
err:
return ret;
}
static int cxd2820r_read_status(struct dvb_frontend *fe, enum fe_status *status)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_read_status_t(fe, status);
break;
case SYS_DVBT2:
ret = cxd2820r_read_status_t2(fe, status);
break;
case SYS_DVBC_ANNEX_A:
ret = cxd2820r_read_status_c(fe, status);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int cxd2820r_get_frontend(struct dvb_frontend *fe,
struct dtv_frontend_properties *p)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
if (priv->delivery_system == SYS_UNDEFINED)
return 0;
switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_get_frontend_t(fe, p);
break;
case SYS_DVBT2:
ret = cxd2820r_get_frontend_t2(fe, p);
break;
case SYS_DVBC_ANNEX_A:
ret = cxd2820r_get_frontend_c(fe, p);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int cxd2820r_read_ber(struct dvb_frontend *fe, u32 *ber)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
*ber = (priv->post_bit_error - priv->post_bit_error_prev_dvbv3);
priv->post_bit_error_prev_dvbv3 = priv->post_bit_error;
return 0;
}
static int cxd2820r_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
if (c->strength.stat[0].scale == FE_SCALE_RELATIVE)
*strength = c->strength.stat[0].uvalue;
else
*strength = 0;
return 0;
}
static int cxd2820r_read_snr(struct dvb_frontend *fe, u16 *snr)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL)
*snr = div_s64(c->cnr.stat[0].svalue, 100);
else
*snr = 0;
return 0;
}
static int cxd2820r_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
*ucblocks = 0;
return 0;
}
static int cxd2820r_init(struct dvb_frontend *fe)
{
return 0;
}
static int cxd2820r_sleep(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_sleep_t(fe);
break;
case SYS_DVBT2:
ret = cxd2820r_sleep_t2(fe);
break;
case SYS_DVBC_ANNEX_A:
ret = cxd2820r_sleep_c(fe);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static int cxd2820r_get_tune_settings(struct dvb_frontend *fe,
struct dvb_frontend_tune_settings *s)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
switch (c->delivery_system) {
case SYS_DVBT:
ret = cxd2820r_get_tune_settings_t(fe, s);
break;
case SYS_DVBT2:
ret = cxd2820r_get_tune_settings_t2(fe, s);
break;
case SYS_DVBC_ANNEX_A:
ret = cxd2820r_get_tune_settings_c(fe, s);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
static enum dvbfe_search cxd2820r_search(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, i;
enum fe_status status = 0;
dev_dbg(&client->dev, "delivery_system=%d\n", c->delivery_system);
/* switch between DVB-T and DVB-T2 when tune fails */
if (priv->last_tune_failed) {
if (priv->delivery_system == SYS_DVBT) {
ret = cxd2820r_sleep_t(fe);
if (ret)
goto error;
c->delivery_system = SYS_DVBT2;
} else if (priv->delivery_system == SYS_DVBT2) {
ret = cxd2820r_sleep_t2(fe);
if (ret)
goto error;
c->delivery_system = SYS_DVBT;
}
}
/* set frontend */
ret = cxd2820r_set_frontend(fe);
if (ret)
goto error;
/* frontend lock wait loop count */
switch (priv->delivery_system) {
case SYS_DVBT:
case SYS_DVBC_ANNEX_A:
i = 20;
break;
case SYS_DVBT2:
i = 40;
break;
case SYS_UNDEFINED:
default:
i = 0;
break;
}
/* wait frontend lock */
for (; i > 0; i--) {
dev_dbg(&client->dev, "loop=%d\n", i);
msleep(50);
ret = cxd2820r_read_status(fe, &status);
if (ret)
goto error;
if (status & FE_HAS_LOCK)
break;
}
/* check if we have a valid signal */
if (status & FE_HAS_LOCK) {
priv->last_tune_failed = false;
return DVBFE_ALGO_SEARCH_SUCCESS;
} else {
priv->last_tune_failed = true;
return DVBFE_ALGO_SEARCH_AGAIN;
}
error:
dev_dbg(&client->dev, "failed=%d\n", ret);
return DVBFE_ALGO_SEARCH_ERROR;
}
static enum dvbfe_algo cxd2820r_get_frontend_algo(struct dvb_frontend *fe)
{
return DVBFE_ALGO_CUSTOM;
}
static void cxd2820r_release(struct dvb_frontend *fe)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
dev_dbg(&client->dev, "\n");
i2c_unregister_device(client);
return;
}
static int cxd2820r_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
{
struct cxd2820r_priv *priv = fe->demodulator_priv;
struct i2c_client *client = priv->client[0];
dev_dbg_ratelimited(&client->dev, "enable=%d\n", enable);
return regmap_update_bits(priv->regmap[0], 0x00db, 0x01, enable ? 1 : 0);
}
#ifdef CONFIG_GPIOLIB
static int cxd2820r_gpio_direction_output(struct gpio_chip *chip, unsigned nr,
int val)
{
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
struct i2c_client *client = priv->client[0];
u8 gpio[GPIO_COUNT];
dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val);
memcpy(gpio, priv->gpio, sizeof(gpio));
gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
return cxd2820r_gpio(&priv->fe, gpio);
}
static void cxd2820r_gpio_set(struct gpio_chip *chip, unsigned nr, int val)
{
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
struct i2c_client *client = priv->client[0];
u8 gpio[GPIO_COUNT];
dev_dbg(&client->dev, "nr=%u val=%d\n", nr, val);
memcpy(gpio, priv->gpio, sizeof(gpio));
gpio[nr] = CXD2820R_GPIO_E | CXD2820R_GPIO_O | (val << 2);
(void) cxd2820r_gpio(&priv->fe, gpio);
return;
}
static int cxd2820r_gpio_get(struct gpio_chip *chip, unsigned nr)
{
struct cxd2820r_priv *priv = gpiochip_get_data(chip);
struct i2c_client *client = priv->client[0];
dev_dbg(&client->dev, "nr=%u\n", nr);
return (priv->gpio[nr] >> 2) & 0x01;
}
#endif
static const struct dvb_frontend_ops cxd2820r_ops = {
.delsys = { SYS_DVBT, SYS_DVBT2, SYS_DVBC_ANNEX_A },
/* default: DVB-T/T2 */
.info = {
.name = "Sony CXD2820R",
.caps = FE_CAN_FEC_1_2 |
FE_CAN_FEC_2_3 |
FE_CAN_FEC_3_4 |
FE_CAN_FEC_5_6 |
FE_CAN_FEC_7_8 |
FE_CAN_FEC_AUTO |
FE_CAN_QPSK |
FE_CAN_QAM_16 |
FE_CAN_QAM_32 |
FE_CAN_QAM_64 |
FE_CAN_QAM_128 |
FE_CAN_QAM_256 |
FE_CAN_QAM_AUTO |
FE_CAN_TRANSMISSION_MODE_AUTO |
FE_CAN_GUARD_INTERVAL_AUTO |
FE_CAN_HIERARCHY_AUTO |
FE_CAN_MUTE_TS |
FE_CAN_2G_MODULATION |
FE_CAN_MULTISTREAM
},
.release = cxd2820r_release,
.init = cxd2820r_init,
.sleep = cxd2820r_sleep,
.get_tune_settings = cxd2820r_get_tune_settings,
.i2c_gate_ctrl = cxd2820r_i2c_gate_ctrl,
.get_frontend = cxd2820r_get_frontend,
.get_frontend_algo = cxd2820r_get_frontend_algo,
.search = cxd2820r_search,
.read_status = cxd2820r_read_status,
.read_snr = cxd2820r_read_snr,
.read_ber = cxd2820r_read_ber,
.read_ucblocks = cxd2820r_read_ucblocks,
.read_signal_strength = cxd2820r_read_signal_strength,
};
/*
* XXX: That is wrapper to cxd2820r_probe() via driver core in order to provide
* proper I2C client for legacy media attach binding.
* New users must use I2C client binding directly!
*/
struct dvb_frontend *cxd2820r_attach(const struct cxd2820r_config *config,
struct i2c_adapter *adapter,
int *gpio_chip_base)
{
struct i2c_client *client;
struct i2c_board_info board_info;
struct cxd2820r_platform_data pdata;
pdata.ts_mode = config->ts_mode;
pdata.ts_clk_inv = config->ts_clock_inv;
pdata.if_agc_polarity = config->if_agc_polarity;
pdata.spec_inv = config->spec_inv;
pdata.gpio_chip_base = &gpio_chip_base;
pdata.attach_in_use = true;
memset(&board_info, 0, sizeof(board_info));
strlcpy(board_info.type, "cxd2820r", I2C_NAME_SIZE);
board_info.addr = config->i2c_address;
board_info.platform_data = &pdata;
client = i2c_new_device(adapter, &board_info);
if (!client || !client->dev.driver)
return NULL;
return pdata.get_dvb_frontend(client);
}
EXPORT_SYMBOL_GPL(cxd2820r_attach);
static struct dvb_frontend *cxd2820r_get_dvb_frontend(struct i2c_client *client)
{
struct cxd2820r_priv *priv = i2c_get_clientdata(client);
dev_dbg(&client->dev, "\n");
return &priv->fe;
}
static int cxd2820r_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct cxd2820r_platform_data *pdata = client->dev.platform_data;
struct cxd2820r_priv *priv;
int ret, *gpio_chip_base;
unsigned int utmp;
static const struct regmap_range_cfg regmap_range_cfg0[] = {
{
.range_min = 0x0000,
.range_max = 0x3fff,
.selector_reg = 0x00,
.selector_mask = 0xff,
.selector_shift = 0,
.window_start = 0x00,
.window_len = 0x100,
},
};
static const struct regmap_range_cfg regmap_range_cfg1[] = {
{
.range_min = 0x0000,
.range_max = 0x01ff,
.selector_reg = 0x00,
.selector_mask = 0xff,
.selector_shift = 0,
.window_start = 0x00,
.window_len = 0x100,
},
};
static const struct regmap_config regmap_config0 = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x3fff,
.ranges = regmap_range_cfg0,
.num_ranges = ARRAY_SIZE(regmap_range_cfg0),
.cache_type = REGCACHE_NONE,
};
static const struct regmap_config regmap_config1 = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x01ff,
.ranges = regmap_range_cfg1,
.num_ranges = ARRAY_SIZE(regmap_range_cfg1),
.cache_type = REGCACHE_NONE,
};
dev_dbg(&client->dev, "\n");
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv) {
ret = -ENOMEM;
goto err;
}
priv->client[0] = client;
priv->fe.demodulator_priv = priv;
priv->i2c = client->adapter;
priv->ts_mode = pdata->ts_mode;
priv->ts_clk_inv = pdata->ts_clk_inv;
priv->if_agc_polarity = pdata->if_agc_polarity;
priv->spec_inv = pdata->spec_inv;
gpio_chip_base = *pdata->gpio_chip_base;
priv->regmap[0] = regmap_init_i2c(priv->client[0], ®map_config0);
if (IS_ERR(priv->regmap[0])) {
ret = PTR_ERR(priv->regmap[0]);
goto err_kfree;
}
/* Check demod answers with correct chip id */
ret = regmap_read(priv->regmap[0], 0x00fd, &utmp);
if (ret)
goto err_regmap_0_regmap_exit;
dev_dbg(&client->dev, "chip_id=%02x\n", utmp);
if (utmp != 0xe1) {
ret = -ENODEV;
goto err_regmap_0_regmap_exit;
}
/*
* Chip has two I2C addresses for different register banks. We register
* one dummy I2C client in in order to get own I2C client for each
* register bank.
*/
priv->client[1] = i2c_new_dummy(client->adapter, client->addr | (1 << 1));
if (!priv->client[1]) {
ret = -ENODEV;
dev_err(&client->dev, "I2C registration failed\n");
if (ret)
goto err_regmap_0_regmap_exit;
}
priv->regmap[1] = regmap_init_i2c(priv->client[1], ®map_config1);
if (IS_ERR(priv->regmap[1])) {
ret = PTR_ERR(priv->regmap[1]);
goto err_client_1_i2c_unregister_device;
}
if (gpio_chip_base) {
#ifdef CONFIG_GPIOLIB
/* Add GPIOs */
priv->gpio_chip.label = KBUILD_MODNAME;
priv->gpio_chip.parent = &client->dev;
priv->gpio_chip.owner = THIS_MODULE;
priv->gpio_chip.direction_output = cxd2820r_gpio_direction_output;
priv->gpio_chip.set = cxd2820r_gpio_set;
priv->gpio_chip.get = cxd2820r_gpio_get;
priv->gpio_chip.base = -1; /* Dynamic allocation */
priv->gpio_chip.ngpio = GPIO_COUNT;
priv->gpio_chip.can_sleep = 1;
ret = gpiochip_add_data(&priv->gpio_chip, priv);
if (ret)
goto err_regmap_1_regmap_exit;
dev_dbg(&client->dev, "gpio_chip.base=%d\n",
priv->gpio_chip.base);
*gpio_chip_base = priv->gpio_chip.base;
#else
/*
* Use static GPIO configuration if GPIOLIB is undefined.
* This is fallback condition.
*/
u8 gpio[GPIO_COUNT];
gpio[0] = (*gpio_chip_base >> 0) & 0x07;
gpio[1] = (*gpio_chip_base >> 3) & 0x07;
gpio[2] = 0;
ret = cxd2820r_gpio(&priv->fe, gpio);
if (ret)
goto err_regmap_1_regmap_exit;
#endif
}
/* Create dvb frontend */
memcpy(&priv->fe.ops, &cxd2820r_ops, sizeof(priv->fe.ops));
if (!pdata->attach_in_use)
priv->fe.ops.release = NULL;
i2c_set_clientdata(client, priv);
/* Setup callbacks */
pdata->get_dvb_frontend = cxd2820r_get_dvb_frontend;
dev_info(&client->dev, "Sony CXD2820R successfully identified\n");
return 0;
err_regmap_1_regmap_exit:
regmap_exit(priv->regmap[1]);
err_client_1_i2c_unregister_device:
i2c_unregister_device(priv->client[1]);
err_regmap_0_regmap_exit:
regmap_exit(priv->regmap[0]);
err_kfree:
kfree(priv);
err:
dev_dbg(&client->dev, "failed=%d\n", ret);
return ret;
}
static int cxd2820r_remove(struct i2c_client *client)
{
struct cxd2820r_priv *priv = i2c_get_clientdata(client);
dev_dbg(&client->dev, "\n");
#ifdef CONFIG_GPIOLIB
if (priv->gpio_chip.label)
gpiochip_remove(&priv->gpio_chip);
#endif
regmap_exit(priv->regmap[1]);
i2c_unregister_device(priv->client[1]);
regmap_exit(priv->regmap[0]);
kfree(priv);
return 0;
}
static const struct i2c_device_id cxd2820r_id_table[] = {
{"cxd2820r", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, cxd2820r_id_table);
static struct i2c_driver cxd2820r_driver = {
.driver = {
.name = "cxd2820r",
.suppress_bind_attrs = true,
},
.probe = cxd2820r_probe,
.remove = cxd2820r_remove,
.id_table = cxd2820r_id_table,
};
module_i2c_driver(cxd2820r_driver);
MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
MODULE_DESCRIPTION("Sony CXD2820R demodulator driver");
MODULE_LICENSE("GPL");
|