1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * FCI FC2580 silicon tuner driver |
4 | * |
5 | * Copyright (C) 2012 Antti Palosaari <crope@iki.fi> |
6 | */ |
7 | |
8 | #include "fc2580_priv.h" |
9 | |
10 | /* |
11 | * TODO: |
12 | * I2C write and read works only for one single register. Multiple registers |
13 | * could not be accessed using normal register address auto-increment. |
14 | * There could be (very likely) register to change that behavior.... |
15 | */ |
16 | |
17 | /* write single register conditionally only when value differs from 0xff |
18 | * XXX: This is special routine meant only for writing fc2580_freq_regs_lut[] |
19 | * values. Do not use for the other purposes. */ |
20 | static int fc2580_wr_reg_ff(struct fc2580_dev *dev, u8 reg, u8 val) |
21 | { |
22 | if (val == 0xff) |
23 | return 0; |
24 | else |
25 | return regmap_write(map: dev->regmap, reg, val); |
26 | } |
27 | |
28 | static int fc2580_set_params(struct fc2580_dev *dev) |
29 | { |
30 | struct i2c_client *client = dev->client; |
31 | int ret, i; |
32 | unsigned int uitmp, div_ref, div_ref_val, div_n, k, k_cw, div_out; |
33 | u64 f_vco; |
34 | u8 synth_config; |
35 | unsigned long timeout; |
36 | |
37 | if (!dev->active) { |
38 | dev_dbg(&client->dev, "tuner is sleeping\n" ); |
39 | return 0; |
40 | } |
41 | |
42 | /* |
43 | * Fractional-N synthesizer |
44 | * |
45 | * +---------------------------------------+ |
46 | * v | |
47 | * Fref +----+ +----+ +-------+ +----+ +------+ +---+ |
48 | * ------> | /R | --> | PD | --> | VCO | ------> | /2 | --> | /N.F | <-- | K | |
49 | * +----+ +----+ +-------+ +----+ +------+ +---+ |
50 | * | |
51 | * | |
52 | * v |
53 | * +-------+ Fout |
54 | * | /Rout | ------> |
55 | * +-------+ |
56 | */ |
57 | for (i = 0; i < ARRAY_SIZE(fc2580_pll_lut); i++) { |
58 | if (dev->f_frequency <= fc2580_pll_lut[i].freq) |
59 | break; |
60 | } |
61 | if (i == ARRAY_SIZE(fc2580_pll_lut)) { |
62 | ret = -EINVAL; |
63 | goto err; |
64 | } |
65 | |
66 | #define DIV_PRE_N 2 |
67 | #define F_REF dev->clk |
68 | div_out = fc2580_pll_lut[i].div_out; |
69 | f_vco = (u64) dev->f_frequency * div_out; |
70 | synth_config = fc2580_pll_lut[i].band; |
71 | if (f_vco < 2600000000ULL) |
72 | synth_config |= 0x06; |
73 | else |
74 | synth_config |= 0x0e; |
75 | |
76 | /* select reference divider R (keep PLL div N in valid range) */ |
77 | #define DIV_N_MIN 76 |
78 | if (f_vco >= div_u64(dividend: (u64) DIV_PRE_N * DIV_N_MIN * F_REF, divisor: 1)) { |
79 | div_ref = 1; |
80 | div_ref_val = 0x00; |
81 | } else if (f_vco >= div_u64(dividend: (u64) DIV_PRE_N * DIV_N_MIN * F_REF, divisor: 2)) { |
82 | div_ref = 2; |
83 | div_ref_val = 0x10; |
84 | } else { |
85 | div_ref = 4; |
86 | div_ref_val = 0x20; |
87 | } |
88 | |
89 | /* calculate PLL integer and fractional control word */ |
90 | uitmp = DIV_PRE_N * F_REF / div_ref; |
91 | div_n = div_u64_rem(dividend: f_vco, divisor: uitmp, remainder: &k); |
92 | k_cw = div_u64(dividend: (u64) k * 0x100000, divisor: uitmp); |
93 | |
94 | dev_dbg(&client->dev, |
95 | "frequency=%u bandwidth=%u f_vco=%llu F_REF=%u div_ref=%u div_n=%u k=%u div_out=%u k_cw=%0x\n" , |
96 | dev->f_frequency, dev->f_bandwidth, f_vco, F_REF, div_ref, |
97 | div_n, k, div_out, k_cw); |
98 | |
99 | ret = regmap_write(map: dev->regmap, reg: 0x02, val: synth_config); |
100 | if (ret) |
101 | goto err; |
102 | |
103 | ret = regmap_write(map: dev->regmap, reg: 0x18, val: div_ref_val << 0 | k_cw >> 16); |
104 | if (ret) |
105 | goto err; |
106 | |
107 | ret = regmap_write(map: dev->regmap, reg: 0x1a, val: (k_cw >> 8) & 0xff); |
108 | if (ret) |
109 | goto err; |
110 | |
111 | ret = regmap_write(map: dev->regmap, reg: 0x1b, val: (k_cw >> 0) & 0xff); |
112 | if (ret) |
113 | goto err; |
114 | |
115 | ret = regmap_write(map: dev->regmap, reg: 0x1c, val: div_n); |
116 | if (ret) |
117 | goto err; |
118 | |
119 | /* registers */ |
120 | for (i = 0; i < ARRAY_SIZE(fc2580_freq_regs_lut); i++) { |
121 | if (dev->f_frequency <= fc2580_freq_regs_lut[i].freq) |
122 | break; |
123 | } |
124 | if (i == ARRAY_SIZE(fc2580_freq_regs_lut)) { |
125 | ret = -EINVAL; |
126 | goto err; |
127 | } |
128 | |
129 | ret = fc2580_wr_reg_ff(dev, reg: 0x25, val: fc2580_freq_regs_lut[i].r25_val); |
130 | if (ret) |
131 | goto err; |
132 | |
133 | ret = fc2580_wr_reg_ff(dev, reg: 0x27, val: fc2580_freq_regs_lut[i].r27_val); |
134 | if (ret) |
135 | goto err; |
136 | |
137 | ret = fc2580_wr_reg_ff(dev, reg: 0x28, val: fc2580_freq_regs_lut[i].r28_val); |
138 | if (ret) |
139 | goto err; |
140 | |
141 | ret = fc2580_wr_reg_ff(dev, reg: 0x29, val: fc2580_freq_regs_lut[i].r29_val); |
142 | if (ret) |
143 | goto err; |
144 | |
145 | ret = fc2580_wr_reg_ff(dev, reg: 0x2b, val: fc2580_freq_regs_lut[i].r2b_val); |
146 | if (ret) |
147 | goto err; |
148 | |
149 | ret = fc2580_wr_reg_ff(dev, reg: 0x2c, val: fc2580_freq_regs_lut[i].r2c_val); |
150 | if (ret) |
151 | goto err; |
152 | |
153 | ret = fc2580_wr_reg_ff(dev, reg: 0x2d, val: fc2580_freq_regs_lut[i].r2d_val); |
154 | if (ret) |
155 | goto err; |
156 | |
157 | ret = fc2580_wr_reg_ff(dev, reg: 0x30, val: fc2580_freq_regs_lut[i].r30_val); |
158 | if (ret) |
159 | goto err; |
160 | |
161 | ret = fc2580_wr_reg_ff(dev, reg: 0x44, val: fc2580_freq_regs_lut[i].r44_val); |
162 | if (ret) |
163 | goto err; |
164 | |
165 | ret = fc2580_wr_reg_ff(dev, reg: 0x50, val: fc2580_freq_regs_lut[i].r50_val); |
166 | if (ret) |
167 | goto err; |
168 | |
169 | ret = fc2580_wr_reg_ff(dev, reg: 0x53, val: fc2580_freq_regs_lut[i].r53_val); |
170 | if (ret) |
171 | goto err; |
172 | |
173 | ret = fc2580_wr_reg_ff(dev, reg: 0x5f, val: fc2580_freq_regs_lut[i].r5f_val); |
174 | if (ret) |
175 | goto err; |
176 | |
177 | ret = fc2580_wr_reg_ff(dev, reg: 0x61, val: fc2580_freq_regs_lut[i].r61_val); |
178 | if (ret) |
179 | goto err; |
180 | |
181 | ret = fc2580_wr_reg_ff(dev, reg: 0x62, val: fc2580_freq_regs_lut[i].r62_val); |
182 | if (ret) |
183 | goto err; |
184 | |
185 | ret = fc2580_wr_reg_ff(dev, reg: 0x63, val: fc2580_freq_regs_lut[i].r63_val); |
186 | if (ret) |
187 | goto err; |
188 | |
189 | ret = fc2580_wr_reg_ff(dev, reg: 0x67, val: fc2580_freq_regs_lut[i].r67_val); |
190 | if (ret) |
191 | goto err; |
192 | |
193 | ret = fc2580_wr_reg_ff(dev, reg: 0x68, val: fc2580_freq_regs_lut[i].r68_val); |
194 | if (ret) |
195 | goto err; |
196 | |
197 | ret = fc2580_wr_reg_ff(dev, reg: 0x69, val: fc2580_freq_regs_lut[i].r69_val); |
198 | if (ret) |
199 | goto err; |
200 | |
201 | ret = fc2580_wr_reg_ff(dev, reg: 0x6a, val: fc2580_freq_regs_lut[i].r6a_val); |
202 | if (ret) |
203 | goto err; |
204 | |
205 | ret = fc2580_wr_reg_ff(dev, reg: 0x6b, val: fc2580_freq_regs_lut[i].r6b_val); |
206 | if (ret) |
207 | goto err; |
208 | |
209 | ret = fc2580_wr_reg_ff(dev, reg: 0x6c, val: fc2580_freq_regs_lut[i].r6c_val); |
210 | if (ret) |
211 | goto err; |
212 | |
213 | ret = fc2580_wr_reg_ff(dev, reg: 0x6d, val: fc2580_freq_regs_lut[i].r6d_val); |
214 | if (ret) |
215 | goto err; |
216 | |
217 | ret = fc2580_wr_reg_ff(dev, reg: 0x6e, val: fc2580_freq_regs_lut[i].r6e_val); |
218 | if (ret) |
219 | goto err; |
220 | |
221 | ret = fc2580_wr_reg_ff(dev, reg: 0x6f, val: fc2580_freq_regs_lut[i].r6f_val); |
222 | if (ret) |
223 | goto err; |
224 | |
225 | /* IF filters */ |
226 | for (i = 0; i < ARRAY_SIZE(fc2580_if_filter_lut); i++) { |
227 | if (dev->f_bandwidth <= fc2580_if_filter_lut[i].freq) |
228 | break; |
229 | } |
230 | if (i == ARRAY_SIZE(fc2580_if_filter_lut)) { |
231 | ret = -EINVAL; |
232 | goto err; |
233 | } |
234 | |
235 | ret = regmap_write(map: dev->regmap, reg: 0x36, val: fc2580_if_filter_lut[i].r36_val); |
236 | if (ret) |
237 | goto err; |
238 | |
239 | uitmp = (unsigned int) 8058000 - (dev->f_bandwidth * 122 / 100 / 2); |
240 | uitmp = div64_u64(dividend: (u64) dev->clk * uitmp, divisor: 1000000000000ULL); |
241 | ret = regmap_write(map: dev->regmap, reg: 0x37, val: uitmp); |
242 | if (ret) |
243 | goto err; |
244 | |
245 | ret = regmap_write(map: dev->regmap, reg: 0x39, val: fc2580_if_filter_lut[i].r39_val); |
246 | if (ret) |
247 | goto err; |
248 | |
249 | timeout = jiffies + msecs_to_jiffies(m: 30); |
250 | for (uitmp = ~0xc0; !time_after(jiffies, timeout) && uitmp != 0xc0;) { |
251 | /* trigger filter */ |
252 | ret = regmap_write(map: dev->regmap, reg: 0x2e, val: 0x09); |
253 | if (ret) |
254 | goto err; |
255 | |
256 | /* locked when [7:6] are set (val: d7 6MHz, d5 7MHz, cd 8MHz) */ |
257 | ret = regmap_read(map: dev->regmap, reg: 0x2f, val: &uitmp); |
258 | if (ret) |
259 | goto err; |
260 | uitmp &= 0xc0; |
261 | |
262 | ret = regmap_write(map: dev->regmap, reg: 0x2e, val: 0x01); |
263 | if (ret) |
264 | goto err; |
265 | } |
266 | if (uitmp != 0xc0) |
267 | dev_dbg(&client->dev, "filter did not lock %02x\n" , uitmp); |
268 | |
269 | return 0; |
270 | err: |
271 | dev_dbg(&client->dev, "failed=%d\n" , ret); |
272 | return ret; |
273 | } |
274 | |
275 | static int fc2580_init(struct fc2580_dev *dev) |
276 | { |
277 | struct i2c_client *client = dev->client; |
278 | int ret, i; |
279 | |
280 | dev_dbg(&client->dev, "\n" ); |
281 | |
282 | for (i = 0; i < ARRAY_SIZE(fc2580_init_reg_vals); i++) { |
283 | ret = regmap_write(map: dev->regmap, reg: fc2580_init_reg_vals[i].reg, |
284 | val: fc2580_init_reg_vals[i].val); |
285 | if (ret) |
286 | goto err; |
287 | } |
288 | |
289 | dev->active = true; |
290 | return 0; |
291 | err: |
292 | dev_dbg(&client->dev, "failed=%d\n" , ret); |
293 | return ret; |
294 | } |
295 | |
296 | static int fc2580_sleep(struct fc2580_dev *dev) |
297 | { |
298 | struct i2c_client *client = dev->client; |
299 | int ret; |
300 | |
301 | dev_dbg(&client->dev, "\n" ); |
302 | |
303 | dev->active = false; |
304 | |
305 | ret = regmap_write(map: dev->regmap, reg: 0x02, val: 0x0a); |
306 | if (ret) |
307 | goto err; |
308 | return 0; |
309 | err: |
310 | dev_dbg(&client->dev, "failed=%d\n" , ret); |
311 | return ret; |
312 | } |
313 | |
314 | /* |
315 | * DVB API |
316 | */ |
317 | static int fc2580_dvb_set_params(struct dvb_frontend *fe) |
318 | { |
319 | struct fc2580_dev *dev = fe->tuner_priv; |
320 | struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
321 | |
322 | dev->f_frequency = c->frequency; |
323 | dev->f_bandwidth = c->bandwidth_hz; |
324 | return fc2580_set_params(dev); |
325 | } |
326 | |
327 | static int fc2580_dvb_init(struct dvb_frontend *fe) |
328 | { |
329 | return fc2580_init(dev: fe->tuner_priv); |
330 | } |
331 | |
332 | static int fc2580_dvb_sleep(struct dvb_frontend *fe) |
333 | { |
334 | return fc2580_sleep(dev: fe->tuner_priv); |
335 | } |
336 | |
337 | static int fc2580_dvb_get_if_frequency(struct dvb_frontend *fe, u32 *frequency) |
338 | { |
339 | *frequency = 0; /* Zero-IF */ |
340 | return 0; |
341 | } |
342 | |
343 | static const struct dvb_tuner_ops fc2580_dvb_tuner_ops = { |
344 | .info = { |
345 | .name = "FCI FC2580" , |
346 | .frequency_min_hz = 174 * MHz, |
347 | .frequency_max_hz = 862 * MHz, |
348 | }, |
349 | |
350 | .init = fc2580_dvb_init, |
351 | .sleep = fc2580_dvb_sleep, |
352 | .set_params = fc2580_dvb_set_params, |
353 | |
354 | .get_if_frequency = fc2580_dvb_get_if_frequency, |
355 | }; |
356 | |
357 | /* |
358 | * V4L2 API |
359 | */ |
360 | #if IS_ENABLED(CONFIG_VIDEO_DEV) |
361 | static const struct v4l2_frequency_band bands[] = { |
362 | { |
363 | .type = V4L2_TUNER_RF, |
364 | .index = 0, |
365 | .capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS, |
366 | .rangelow = 130000000, |
367 | .rangehigh = 2000000000, |
368 | }, |
369 | }; |
370 | |
371 | static inline struct fc2580_dev *fc2580_subdev_to_dev(struct v4l2_subdev *sd) |
372 | { |
373 | return container_of(sd, struct fc2580_dev, subdev); |
374 | } |
375 | |
376 | static int fc2580_standby(struct v4l2_subdev *sd) |
377 | { |
378 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); |
379 | int ret; |
380 | |
381 | ret = fc2580_sleep(dev); |
382 | if (ret) |
383 | return ret; |
384 | |
385 | return fc2580_set_params(dev); |
386 | } |
387 | |
388 | static int fc2580_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *v) |
389 | { |
390 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); |
391 | struct i2c_client *client = dev->client; |
392 | |
393 | dev_dbg(&client->dev, "index=%d\n" , v->index); |
394 | |
395 | strscpy(p: v->name, q: "FCI FC2580" , size: sizeof(v->name)); |
396 | v->type = V4L2_TUNER_RF; |
397 | v->capability = V4L2_TUNER_CAP_1HZ | V4L2_TUNER_CAP_FREQ_BANDS; |
398 | v->rangelow = bands[0].rangelow; |
399 | v->rangehigh = bands[0].rangehigh; |
400 | return 0; |
401 | } |
402 | |
403 | static int fc2580_s_tuner(struct v4l2_subdev *sd, const struct v4l2_tuner *v) |
404 | { |
405 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); |
406 | struct i2c_client *client = dev->client; |
407 | |
408 | dev_dbg(&client->dev, "index=%d\n" , v->index); |
409 | return 0; |
410 | } |
411 | |
412 | static int fc2580_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f) |
413 | { |
414 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); |
415 | struct i2c_client *client = dev->client; |
416 | |
417 | dev_dbg(&client->dev, "tuner=%d\n" , f->tuner); |
418 | f->frequency = dev->f_frequency; |
419 | return 0; |
420 | } |
421 | |
422 | static int fc2580_s_frequency(struct v4l2_subdev *sd, |
423 | const struct v4l2_frequency *f) |
424 | { |
425 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); |
426 | struct i2c_client *client = dev->client; |
427 | |
428 | dev_dbg(&client->dev, "tuner=%d type=%d frequency=%u\n" , |
429 | f->tuner, f->type, f->frequency); |
430 | |
431 | dev->f_frequency = clamp_t(unsigned int, f->frequency, |
432 | bands[0].rangelow, bands[0].rangehigh); |
433 | return fc2580_set_params(dev); |
434 | } |
435 | |
436 | static int fc2580_enum_freq_bands(struct v4l2_subdev *sd, |
437 | struct v4l2_frequency_band *band) |
438 | { |
439 | struct fc2580_dev *dev = fc2580_subdev_to_dev(sd); |
440 | struct i2c_client *client = dev->client; |
441 | |
442 | dev_dbg(&client->dev, "tuner=%d type=%d index=%d\n" , |
443 | band->tuner, band->type, band->index); |
444 | |
445 | if (band->index >= ARRAY_SIZE(bands)) |
446 | return -EINVAL; |
447 | |
448 | band->capability = bands[band->index].capability; |
449 | band->rangelow = bands[band->index].rangelow; |
450 | band->rangehigh = bands[band->index].rangehigh; |
451 | return 0; |
452 | } |
453 | |
454 | static const struct v4l2_subdev_tuner_ops fc2580_subdev_tuner_ops = { |
455 | .standby = fc2580_standby, |
456 | .g_tuner = fc2580_g_tuner, |
457 | .s_tuner = fc2580_s_tuner, |
458 | .g_frequency = fc2580_g_frequency, |
459 | .s_frequency = fc2580_s_frequency, |
460 | .enum_freq_bands = fc2580_enum_freq_bands, |
461 | }; |
462 | |
463 | static const struct v4l2_subdev_ops fc2580_subdev_ops = { |
464 | .tuner = &fc2580_subdev_tuner_ops, |
465 | }; |
466 | |
467 | static int fc2580_s_ctrl(struct v4l2_ctrl *ctrl) |
468 | { |
469 | struct fc2580_dev *dev = container_of(ctrl->handler, struct fc2580_dev, hdl); |
470 | struct i2c_client *client = dev->client; |
471 | int ret; |
472 | |
473 | dev_dbg(&client->dev, "ctrl: id=%d name=%s cur.val=%d val=%d\n" , |
474 | ctrl->id, ctrl->name, ctrl->cur.val, ctrl->val); |
475 | |
476 | switch (ctrl->id) { |
477 | case V4L2_CID_RF_TUNER_BANDWIDTH_AUTO: |
478 | case V4L2_CID_RF_TUNER_BANDWIDTH: |
479 | /* |
480 | * TODO: Auto logic does not work 100% correctly as tuner driver |
481 | * do not have information to calculate maximum suitable |
482 | * bandwidth. Calculating it is responsible of master driver. |
483 | */ |
484 | dev->f_bandwidth = dev->bandwidth->val; |
485 | ret = fc2580_set_params(dev); |
486 | break; |
487 | default: |
488 | dev_dbg(&client->dev, "unknown ctrl" ); |
489 | ret = -EINVAL; |
490 | } |
491 | return ret; |
492 | } |
493 | |
494 | static const struct v4l2_ctrl_ops fc2580_ctrl_ops = { |
495 | .s_ctrl = fc2580_s_ctrl, |
496 | }; |
497 | #endif |
498 | |
499 | static struct v4l2_subdev *fc2580_get_v4l2_subdev(struct i2c_client *client) |
500 | { |
501 | struct fc2580_dev *dev = i2c_get_clientdata(client); |
502 | |
503 | if (dev->subdev.ops) |
504 | return &dev->subdev; |
505 | else |
506 | return NULL; |
507 | } |
508 | |
509 | static int fc2580_probe(struct i2c_client *client) |
510 | { |
511 | struct fc2580_dev *dev; |
512 | struct fc2580_platform_data *pdata = client->dev.platform_data; |
513 | struct dvb_frontend *fe = pdata->dvb_frontend; |
514 | int ret; |
515 | unsigned int uitmp; |
516 | static const struct regmap_config regmap_config = { |
517 | .reg_bits = 8, |
518 | .val_bits = 8, |
519 | }; |
520 | |
521 | dev = kzalloc(size: sizeof(*dev), GFP_KERNEL); |
522 | if (!dev) { |
523 | ret = -ENOMEM; |
524 | goto err; |
525 | } |
526 | |
527 | if (pdata->clk) |
528 | dev->clk = pdata->clk; |
529 | else |
530 | dev->clk = 16384000; /* internal clock */ |
531 | dev->client = client; |
532 | dev->regmap = devm_regmap_init_i2c(client, ®map_config); |
533 | if (IS_ERR(ptr: dev->regmap)) { |
534 | ret = PTR_ERR(ptr: dev->regmap); |
535 | goto err_kfree; |
536 | } |
537 | |
538 | /* check if the tuner is there */ |
539 | ret = regmap_read(map: dev->regmap, reg: 0x01, val: &uitmp); |
540 | if (ret) |
541 | goto err_kfree; |
542 | |
543 | dev_dbg(&client->dev, "chip_id=%02x\n" , uitmp); |
544 | |
545 | switch (uitmp) { |
546 | case 0x56: |
547 | case 0x5a: |
548 | break; |
549 | default: |
550 | ret = -ENODEV; |
551 | goto err_kfree; |
552 | } |
553 | |
554 | #if IS_ENABLED(CONFIG_VIDEO_DEV) |
555 | /* Register controls */ |
556 | v4l2_ctrl_handler_init(&dev->hdl, 2); |
557 | dev->bandwidth_auto = v4l2_ctrl_new_std(hdl: &dev->hdl, ops: &fc2580_ctrl_ops, |
558 | V4L2_CID_RF_TUNER_BANDWIDTH_AUTO, |
559 | min: 0, max: 1, step: 1, def: 1); |
560 | dev->bandwidth = v4l2_ctrl_new_std(hdl: &dev->hdl, ops: &fc2580_ctrl_ops, |
561 | V4L2_CID_RF_TUNER_BANDWIDTH, |
562 | min: 3000, max: 10000000, step: 1, def: 3000); |
563 | v4l2_ctrl_auto_cluster(ncontrols: 2, controls: &dev->bandwidth_auto, manual_val: 0, set_volatile: false); |
564 | if (dev->hdl.error) { |
565 | ret = dev->hdl.error; |
566 | dev_err(&client->dev, "Could not initialize controls\n" ); |
567 | v4l2_ctrl_handler_free(hdl: &dev->hdl); |
568 | goto err_kfree; |
569 | } |
570 | dev->subdev.ctrl_handler = &dev->hdl; |
571 | dev->f_frequency = bands[0].rangelow; |
572 | dev->f_bandwidth = dev->bandwidth->val; |
573 | v4l2_i2c_subdev_init(sd: &dev->subdev, client, ops: &fc2580_subdev_ops); |
574 | #endif |
575 | fe->tuner_priv = dev; |
576 | memcpy(&fe->ops.tuner_ops, &fc2580_dvb_tuner_ops, |
577 | sizeof(fe->ops.tuner_ops)); |
578 | pdata->get_v4l2_subdev = fc2580_get_v4l2_subdev; |
579 | i2c_set_clientdata(client, data: dev); |
580 | |
581 | dev_info(&client->dev, "FCI FC2580 successfully identified\n" ); |
582 | return 0; |
583 | err_kfree: |
584 | kfree(objp: dev); |
585 | err: |
586 | dev_dbg(&client->dev, "failed=%d\n" , ret); |
587 | return ret; |
588 | } |
589 | |
590 | static void fc2580_remove(struct i2c_client *client) |
591 | { |
592 | struct fc2580_dev *dev = i2c_get_clientdata(client); |
593 | |
594 | dev_dbg(&client->dev, "\n" ); |
595 | |
596 | #if IS_ENABLED(CONFIG_VIDEO_DEV) |
597 | v4l2_ctrl_handler_free(hdl: &dev->hdl); |
598 | #endif |
599 | kfree(objp: dev); |
600 | } |
601 | |
602 | static const struct i2c_device_id fc2580_id_table[] = { |
603 | {"fc2580" , 0}, |
604 | {} |
605 | }; |
606 | MODULE_DEVICE_TABLE(i2c, fc2580_id_table); |
607 | |
608 | static struct i2c_driver fc2580_driver = { |
609 | .driver = { |
610 | .name = "fc2580" , |
611 | .suppress_bind_attrs = true, |
612 | }, |
613 | .probe = fc2580_probe, |
614 | .remove = fc2580_remove, |
615 | .id_table = fc2580_id_table, |
616 | }; |
617 | |
618 | module_i2c_driver(fc2580_driver); |
619 | |
620 | MODULE_DESCRIPTION("FCI FC2580 silicon tuner driver" ); |
621 | MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>" ); |
622 | MODULE_LICENSE("GPL" ); |
623 | |