xref: /linux/drivers/media/i2c/ov5670.c (revision b2d0f5d5dc53532e6f07bc546a476a55ebdfe0f3)
1 /*
2  * Copyright (c) 2017 Intel Corporation.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License version
6  * 2 as published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  */
14 
15 #include <linux/acpi.h>
16 #include <linux/i2c.h>
17 #include <linux/module.h>
18 #include <linux/pm_runtime.h>
19 #include <media/v4l2-ctrls.h>
20 #include <media/v4l2-device.h>
21 
22 #define OV5670_REG_CHIP_ID		0x300a
23 #define OV5670_CHIP_ID			0x005670
24 
25 #define OV5670_REG_MODE_SELECT		0x0100
26 #define OV5670_MODE_STANDBY		0x00
27 #define OV5670_MODE_STREAMING		0x01
28 
29 #define OV5670_REG_SOFTWARE_RST		0x0103
30 #define OV5670_SOFTWARE_RST		0x01
31 
32 /* vertical-timings from sensor */
33 #define OV5670_REG_VTS			0x380e
34 #define OV5670_VTS_30FPS		0x0808 /* default for 30 fps */
35 #define OV5670_VTS_MAX			0xffff
36 
37 /* horizontal-timings from sensor */
38 #define OV5670_REG_HTS			0x380c
39 
40 /*
41  * Pixels-per-line(PPL) = Time-per-line * pixel-rate
42  * In OV5670, Time-per-line = HTS/SCLK.
43  * HTS is fixed for all resolutions, not recommended to change.
44  */
45 #define OV5670_FIXED_PPL		2724	/* Pixels per line */
46 
47 /* Exposure controls from sensor */
48 #define OV5670_REG_EXPOSURE		0x3500
49 #define	OV5670_EXPOSURE_MIN		4
50 #define	OV5670_EXPOSURE_STEP		1
51 
52 /* Analog gain controls from sensor */
53 #define OV5670_REG_ANALOG_GAIN		0x3508
54 #define	ANALOG_GAIN_MIN			0
55 #define	ANALOG_GAIN_MAX			8191
56 #define	ANALOG_GAIN_STEP		1
57 #define	ANALOG_GAIN_DEFAULT		128
58 
59 /* Digital gain controls from sensor */
60 #define OV5670_REG_R_DGTL_GAIN		0x5032
61 #define OV5670_REG_G_DGTL_GAIN		0x5034
62 #define OV5670_REG_B_DGTL_GAIN		0x5036
63 #define OV5670_DGTL_GAIN_MIN		0
64 #define OV5670_DGTL_GAIN_MAX		4095
65 #define OV5670_DGTL_GAIN_STEP		1
66 #define OV5670_DGTL_GAIN_DEFAULT	1024
67 
68 /* Test Pattern Control */
69 #define OV5670_REG_TEST_PATTERN		0x4303
70 #define OV5670_TEST_PATTERN_ENABLE	BIT(3)
71 #define OV5670_REG_TEST_PATTERN_CTRL	0x4320
72 
73 #define OV5670_REG_VALUE_08BIT		1
74 #define OV5670_REG_VALUE_16BIT		2
75 #define OV5670_REG_VALUE_24BIT		3
76 
77 /* Initial number of frames to skip to avoid possible garbage */
78 #define OV5670_NUM_OF_SKIP_FRAMES	2
79 
80 struct ov5670_reg {
81 	u16 address;
82 	u8 val;
83 };
84 
85 struct ov5670_reg_list {
86 	u32 num_of_regs;
87 	const struct ov5670_reg *regs;
88 };
89 
90 struct ov5670_link_freq_config {
91 	u32 pixel_rate;
92 	const struct ov5670_reg_list reg_list;
93 };
94 
95 struct ov5670_mode {
96 	/* Frame width in pixels */
97 	u32 width;
98 
99 	/* Frame height in pixels */
100 	u32 height;
101 
102 	/* Default vertical timining size */
103 	u32 vts_def;
104 
105 	/* Min vertical timining size */
106 	u32 vts_min;
107 
108 	/* Link frequency needed for this resolution */
109 	u32 link_freq_index;
110 
111 	/* Sensor register settings for this resolution */
112 	const struct ov5670_reg_list reg_list;
113 };
114 
115 static const struct ov5670_reg mipi_data_rate_840mbps[] = {
116 	{0x0300, 0x04},
117 	{0x0301, 0x00},
118 	{0x0302, 0x84},
119 	{0x0303, 0x00},
120 	{0x0304, 0x03},
121 	{0x0305, 0x01},
122 	{0x0306, 0x01},
123 	{0x030a, 0x00},
124 	{0x030b, 0x00},
125 	{0x030c, 0x00},
126 	{0x030d, 0x26},
127 	{0x030e, 0x00},
128 	{0x030f, 0x06},
129 	{0x0312, 0x01},
130 	{0x3031, 0x0a},
131 };
132 
133 static const struct ov5670_reg mode_2592x1944_regs[] = {
134 	{0x3000, 0x00},
135 	{0x3002, 0x21},
136 	{0x3005, 0xf0},
137 	{0x3007, 0x00},
138 	{0x3015, 0x0f},
139 	{0x3018, 0x32},
140 	{0x301a, 0xf0},
141 	{0x301b, 0xf0},
142 	{0x301c, 0xf0},
143 	{0x301d, 0xf0},
144 	{0x301e, 0xf0},
145 	{0x3030, 0x00},
146 	{0x3031, 0x0a},
147 	{0x303c, 0xff},
148 	{0x303e, 0xff},
149 	{0x3040, 0xf0},
150 	{0x3041, 0x00},
151 	{0x3042, 0xf0},
152 	{0x3106, 0x11},
153 	{0x3500, 0x00},
154 	{0x3501, 0x80},
155 	{0x3502, 0x00},
156 	{0x3503, 0x04},
157 	{0x3504, 0x03},
158 	{0x3505, 0x83},
159 	{0x3508, 0x04},
160 	{0x3509, 0x00},
161 	{0x350e, 0x04},
162 	{0x350f, 0x00},
163 	{0x3510, 0x00},
164 	{0x3511, 0x02},
165 	{0x3512, 0x00},
166 	{0x3601, 0xc8},
167 	{0x3610, 0x88},
168 	{0x3612, 0x48},
169 	{0x3614, 0x5b},
170 	{0x3615, 0x96},
171 	{0x3621, 0xd0},
172 	{0x3622, 0x00},
173 	{0x3623, 0x00},
174 	{0x3633, 0x13},
175 	{0x3634, 0x13},
176 	{0x3635, 0x13},
177 	{0x3636, 0x13},
178 	{0x3645, 0x13},
179 	{0x3646, 0x82},
180 	{0x3650, 0x00},
181 	{0x3652, 0xff},
182 	{0x3655, 0x20},
183 	{0x3656, 0xff},
184 	{0x365a, 0xff},
185 	{0x365e, 0xff},
186 	{0x3668, 0x00},
187 	{0x366a, 0x07},
188 	{0x366e, 0x10},
189 	{0x366d, 0x00},
190 	{0x366f, 0x80},
191 	{0x3700, 0x28},
192 	{0x3701, 0x10},
193 	{0x3702, 0x3a},
194 	{0x3703, 0x19},
195 	{0x3704, 0x10},
196 	{0x3705, 0x00},
197 	{0x3706, 0x66},
198 	{0x3707, 0x08},
199 	{0x3708, 0x34},
200 	{0x3709, 0x40},
201 	{0x370a, 0x01},
202 	{0x370b, 0x1b},
203 	{0x3714, 0x24},
204 	{0x371a, 0x3e},
205 	{0x3733, 0x00},
206 	{0x3734, 0x00},
207 	{0x373a, 0x05},
208 	{0x373b, 0x06},
209 	{0x373c, 0x0a},
210 	{0x373f, 0xa0},
211 	{0x3755, 0x00},
212 	{0x3758, 0x00},
213 	{0x375b, 0x0e},
214 	{0x3766, 0x5f},
215 	{0x3768, 0x00},
216 	{0x3769, 0x22},
217 	{0x3773, 0x08},
218 	{0x3774, 0x1f},
219 	{0x3776, 0x06},
220 	{0x37a0, 0x88},
221 	{0x37a1, 0x5c},
222 	{0x37a7, 0x88},
223 	{0x37a8, 0x70},
224 	{0x37aa, 0x88},
225 	{0x37ab, 0x48},
226 	{0x37b3, 0x66},
227 	{0x37c2, 0x04},
228 	{0x37c5, 0x00},
229 	{0x37c8, 0x00},
230 	{0x3800, 0x00},
231 	{0x3801, 0x0c},
232 	{0x3802, 0x00},
233 	{0x3803, 0x04},
234 	{0x3804, 0x0a},
235 	{0x3805, 0x33},
236 	{0x3806, 0x07},
237 	{0x3807, 0xa3},
238 	{0x3808, 0x0a},
239 	{0x3809, 0x20},
240 	{0x380a, 0x07},
241 	{0x380b, 0x98},
242 	{0x380c, 0x06},
243 	{0x380d, 0x90},
244 	{0x380e, 0x08},
245 	{0x380f, 0x08},
246 	{0x3811, 0x04},
247 	{0x3813, 0x02},
248 	{0x3814, 0x01},
249 	{0x3815, 0x01},
250 	{0x3816, 0x00},
251 	{0x3817, 0x00},
252 	{0x3818, 0x00},
253 	{0x3819, 0x00},
254 	{0x3820, 0x84},
255 	{0x3821, 0x46},
256 	{0x3822, 0x48},
257 	{0x3826, 0x00},
258 	{0x3827, 0x08},
259 	{0x382a, 0x01},
260 	{0x382b, 0x01},
261 	{0x3830, 0x08},
262 	{0x3836, 0x02},
263 	{0x3837, 0x00},
264 	{0x3838, 0x10},
265 	{0x3841, 0xff},
266 	{0x3846, 0x48},
267 	{0x3861, 0x00},
268 	{0x3862, 0x04},
269 	{0x3863, 0x06},
270 	{0x3a11, 0x01},
271 	{0x3a12, 0x78},
272 	{0x3b00, 0x00},
273 	{0x3b02, 0x00},
274 	{0x3b03, 0x00},
275 	{0x3b04, 0x00},
276 	{0x3b05, 0x00},
277 	{0x3c00, 0x89},
278 	{0x3c01, 0xab},
279 	{0x3c02, 0x01},
280 	{0x3c03, 0x00},
281 	{0x3c04, 0x00},
282 	{0x3c05, 0x03},
283 	{0x3c06, 0x00},
284 	{0x3c07, 0x05},
285 	{0x3c0c, 0x00},
286 	{0x3c0d, 0x00},
287 	{0x3c0e, 0x00},
288 	{0x3c0f, 0x00},
289 	{0x3c40, 0x00},
290 	{0x3c41, 0xa3},
291 	{0x3c43, 0x7d},
292 	{0x3c45, 0xd7},
293 	{0x3c47, 0xfc},
294 	{0x3c50, 0x05},
295 	{0x3c52, 0xaa},
296 	{0x3c54, 0x71},
297 	{0x3c56, 0x80},
298 	{0x3d85, 0x17},
299 	{0x3f03, 0x00},
300 	{0x3f0a, 0x00},
301 	{0x3f0b, 0x00},
302 	{0x4001, 0x60},
303 	{0x4009, 0x0d},
304 	{0x4020, 0x00},
305 	{0x4021, 0x00},
306 	{0x4022, 0x00},
307 	{0x4023, 0x00},
308 	{0x4024, 0x00},
309 	{0x4025, 0x00},
310 	{0x4026, 0x00},
311 	{0x4027, 0x00},
312 	{0x4028, 0x00},
313 	{0x4029, 0x00},
314 	{0x402a, 0x00},
315 	{0x402b, 0x00},
316 	{0x402c, 0x00},
317 	{0x402d, 0x00},
318 	{0x402e, 0x00},
319 	{0x402f, 0x00},
320 	{0x4040, 0x00},
321 	{0x4041, 0x03},
322 	{0x4042, 0x00},
323 	{0x4043, 0x7A},
324 	{0x4044, 0x00},
325 	{0x4045, 0x7A},
326 	{0x4046, 0x00},
327 	{0x4047, 0x7A},
328 	{0x4048, 0x00},
329 	{0x4049, 0x7A},
330 	{0x4307, 0x30},
331 	{0x4500, 0x58},
332 	{0x4501, 0x04},
333 	{0x4502, 0x40},
334 	{0x4503, 0x10},
335 	{0x4508, 0xaa},
336 	{0x4509, 0xaa},
337 	{0x450a, 0x00},
338 	{0x450b, 0x00},
339 	{0x4600, 0x01},
340 	{0x4601, 0x03},
341 	{0x4700, 0xa4},
342 	{0x4800, 0x4c},
343 	{0x4816, 0x53},
344 	{0x481f, 0x40},
345 	{0x4837, 0x13},
346 	{0x5000, 0x56},
347 	{0x5001, 0x01},
348 	{0x5002, 0x28},
349 	{0x5004, 0x0c},
350 	{0x5006, 0x0c},
351 	{0x5007, 0xe0},
352 	{0x5008, 0x01},
353 	{0x5009, 0xb0},
354 	{0x5901, 0x00},
355 	{0x5a01, 0x00},
356 	{0x5a03, 0x00},
357 	{0x5a04, 0x0c},
358 	{0x5a05, 0xe0},
359 	{0x5a06, 0x09},
360 	{0x5a07, 0xb0},
361 	{0x5a08, 0x06},
362 	{0x5e00, 0x00},
363 	{0x3734, 0x40},
364 	{0x5b00, 0x01},
365 	{0x5b01, 0x10},
366 	{0x5b02, 0x01},
367 	{0x5b03, 0xdb},
368 	{0x3d8c, 0x71},
369 	{0x3d8d, 0xea},
370 	{0x4017, 0x08},
371 	{0x3618, 0x2a},
372 	{0x5780, 0x3e},
373 	{0x5781, 0x0f},
374 	{0x5782, 0x44},
375 	{0x5783, 0x02},
376 	{0x5784, 0x01},
377 	{0x5785, 0x01},
378 	{0x5786, 0x00},
379 	{0x5787, 0x04},
380 	{0x5788, 0x02},
381 	{0x5789, 0x0f},
382 	{0x578a, 0xfd},
383 	{0x578b, 0xf5},
384 	{0x578c, 0xf5},
385 	{0x578d, 0x03},
386 	{0x578e, 0x08},
387 	{0x578f, 0x0c},
388 	{0x5790, 0x08},
389 	{0x5791, 0x06},
390 	{0x5792, 0x00},
391 	{0x5793, 0x52},
392 	{0x5794, 0xa3},
393 	{0x3503, 0x00}
394 };
395 
396 static const struct ov5670_reg mode_1296x972_regs[] = {
397 	{0x3000, 0x00},
398 	{0x3002, 0x21},
399 	{0x3005, 0xf0},
400 	{0x3007, 0x00},
401 	{0x3015, 0x0f},
402 	{0x3018, 0x32},
403 	{0x301a, 0xf0},
404 	{0x301b, 0xf0},
405 	{0x301c, 0xf0},
406 	{0x301d, 0xf0},
407 	{0x301e, 0xf0},
408 	{0x3030, 0x00},
409 	{0x3031, 0x0a},
410 	{0x303c, 0xff},
411 	{0x303e, 0xff},
412 	{0x3040, 0xf0},
413 	{0x3041, 0x00},
414 	{0x3042, 0xf0},
415 	{0x3106, 0x11},
416 	{0x3500, 0x00},
417 	{0x3501, 0x80},
418 	{0x3502, 0x00},
419 	{0x3503, 0x04},
420 	{0x3504, 0x03},
421 	{0x3505, 0x83},
422 	{0x3508, 0x07},
423 	{0x3509, 0x80},
424 	{0x350e, 0x04},
425 	{0x350f, 0x00},
426 	{0x3510, 0x00},
427 	{0x3511, 0x02},
428 	{0x3512, 0x00},
429 	{0x3601, 0xc8},
430 	{0x3610, 0x88},
431 	{0x3612, 0x48},
432 	{0x3614, 0x5b},
433 	{0x3615, 0x96},
434 	{0x3621, 0xd0},
435 	{0x3622, 0x00},
436 	{0x3623, 0x00},
437 	{0x3633, 0x13},
438 	{0x3634, 0x13},
439 	{0x3635, 0x13},
440 	{0x3636, 0x13},
441 	{0x3645, 0x13},
442 	{0x3646, 0x82},
443 	{0x3650, 0x00},
444 	{0x3652, 0xff},
445 	{0x3655, 0x20},
446 	{0x3656, 0xff},
447 	{0x365a, 0xff},
448 	{0x365e, 0xff},
449 	{0x3668, 0x00},
450 	{0x366a, 0x07},
451 	{0x366e, 0x08},
452 	{0x366d, 0x00},
453 	{0x366f, 0x80},
454 	{0x3700, 0x28},
455 	{0x3701, 0x10},
456 	{0x3702, 0x3a},
457 	{0x3703, 0x19},
458 	{0x3704, 0x10},
459 	{0x3705, 0x00},
460 	{0x3706, 0x66},
461 	{0x3707, 0x08},
462 	{0x3708, 0x34},
463 	{0x3709, 0x40},
464 	{0x370a, 0x01},
465 	{0x370b, 0x1b},
466 	{0x3714, 0x24},
467 	{0x371a, 0x3e},
468 	{0x3733, 0x00},
469 	{0x3734, 0x00},
470 	{0x373a, 0x05},
471 	{0x373b, 0x06},
472 	{0x373c, 0x0a},
473 	{0x373f, 0xa0},
474 	{0x3755, 0x00},
475 	{0x3758, 0x00},
476 	{0x375b, 0x0e},
477 	{0x3766, 0x5f},
478 	{0x3768, 0x00},
479 	{0x3769, 0x22},
480 	{0x3773, 0x08},
481 	{0x3774, 0x1f},
482 	{0x3776, 0x06},
483 	{0x37a0, 0x88},
484 	{0x37a1, 0x5c},
485 	{0x37a7, 0x88},
486 	{0x37a8, 0x70},
487 	{0x37aa, 0x88},
488 	{0x37ab, 0x48},
489 	{0x37b3, 0x66},
490 	{0x37c2, 0x04},
491 	{0x37c5, 0x00},
492 	{0x37c8, 0x00},
493 	{0x3800, 0x00},
494 	{0x3801, 0x0c},
495 	{0x3802, 0x00},
496 	{0x3803, 0x04},
497 	{0x3804, 0x0a},
498 	{0x3805, 0x33},
499 	{0x3806, 0x07},
500 	{0x3807, 0xa3},
501 	{0x3808, 0x05},
502 	{0x3809, 0x10},
503 	{0x380a, 0x03},
504 	{0x380b, 0xcc},
505 	{0x380c, 0x06},
506 	{0x380d, 0x90},
507 	{0x380e, 0x08},
508 	{0x380f, 0x08},
509 	{0x3811, 0x04},
510 	{0x3813, 0x04},
511 	{0x3814, 0x03},
512 	{0x3815, 0x01},
513 	{0x3816, 0x00},
514 	{0x3817, 0x00},
515 	{0x3818, 0x00},
516 	{0x3819, 0x00},
517 	{0x3820, 0x94},
518 	{0x3821, 0x47},
519 	{0x3822, 0x48},
520 	{0x3826, 0x00},
521 	{0x3827, 0x08},
522 	{0x382a, 0x03},
523 	{0x382b, 0x01},
524 	{0x3830, 0x08},
525 	{0x3836, 0x02},
526 	{0x3837, 0x00},
527 	{0x3838, 0x10},
528 	{0x3841, 0xff},
529 	{0x3846, 0x48},
530 	{0x3861, 0x00},
531 	{0x3862, 0x04},
532 	{0x3863, 0x06},
533 	{0x3a11, 0x01},
534 	{0x3a12, 0x78},
535 	{0x3b00, 0x00},
536 	{0x3b02, 0x00},
537 	{0x3b03, 0x00},
538 	{0x3b04, 0x00},
539 	{0x3b05, 0x00},
540 	{0x3c00, 0x89},
541 	{0x3c01, 0xab},
542 	{0x3c02, 0x01},
543 	{0x3c03, 0x00},
544 	{0x3c04, 0x00},
545 	{0x3c05, 0x03},
546 	{0x3c06, 0x00},
547 	{0x3c07, 0x05},
548 	{0x3c0c, 0x00},
549 	{0x3c0d, 0x00},
550 	{0x3c0e, 0x00},
551 	{0x3c0f, 0x00},
552 	{0x3c40, 0x00},
553 	{0x3c41, 0xa3},
554 	{0x3c43, 0x7d},
555 	{0x3c45, 0xd7},
556 	{0x3c47, 0xfc},
557 	{0x3c50, 0x05},
558 	{0x3c52, 0xaa},
559 	{0x3c54, 0x71},
560 	{0x3c56, 0x80},
561 	{0x3d85, 0x17},
562 	{0x3f03, 0x00},
563 	{0x3f0a, 0x00},
564 	{0x3f0b, 0x00},
565 	{0x4001, 0x60},
566 	{0x4009, 0x05},
567 	{0x4020, 0x00},
568 	{0x4021, 0x00},
569 	{0x4022, 0x00},
570 	{0x4023, 0x00},
571 	{0x4024, 0x00},
572 	{0x4025, 0x00},
573 	{0x4026, 0x00},
574 	{0x4027, 0x00},
575 	{0x4028, 0x00},
576 	{0x4029, 0x00},
577 	{0x402a, 0x00},
578 	{0x402b, 0x00},
579 	{0x402c, 0x00},
580 	{0x402d, 0x00},
581 	{0x402e, 0x00},
582 	{0x402f, 0x00},
583 	{0x4040, 0x00},
584 	{0x4041, 0x03},
585 	{0x4042, 0x00},
586 	{0x4043, 0x7A},
587 	{0x4044, 0x00},
588 	{0x4045, 0x7A},
589 	{0x4046, 0x00},
590 	{0x4047, 0x7A},
591 	{0x4048, 0x00},
592 	{0x4049, 0x7A},
593 	{0x4307, 0x30},
594 	{0x4500, 0x58},
595 	{0x4501, 0x04},
596 	{0x4502, 0x48},
597 	{0x4503, 0x10},
598 	{0x4508, 0x55},
599 	{0x4509, 0x55},
600 	{0x450a, 0x00},
601 	{0x450b, 0x00},
602 	{0x4600, 0x00},
603 	{0x4601, 0x81},
604 	{0x4700, 0xa4},
605 	{0x4800, 0x4c},
606 	{0x4816, 0x53},
607 	{0x481f, 0x40},
608 	{0x4837, 0x13},
609 	{0x5000, 0x56},
610 	{0x5001, 0x01},
611 	{0x5002, 0x28},
612 	{0x5004, 0x0c},
613 	{0x5006, 0x0c},
614 	{0x5007, 0xe0},
615 	{0x5008, 0x01},
616 	{0x5009, 0xb0},
617 	{0x5901, 0x00},
618 	{0x5a01, 0x00},
619 	{0x5a03, 0x00},
620 	{0x5a04, 0x0c},
621 	{0x5a05, 0xe0},
622 	{0x5a06, 0x09},
623 	{0x5a07, 0xb0},
624 	{0x5a08, 0x06},
625 	{0x5e00, 0x00},
626 	{0x3734, 0x40},
627 	{0x5b00, 0x01},
628 	{0x5b01, 0x10},
629 	{0x5b02, 0x01},
630 	{0x5b03, 0xdb},
631 	{0x3d8c, 0x71},
632 	{0x3d8d, 0xea},
633 	{0x4017, 0x10},
634 	{0x3618, 0x2a},
635 	{0x5780, 0x3e},
636 	{0x5781, 0x0f},
637 	{0x5782, 0x44},
638 	{0x5783, 0x02},
639 	{0x5784, 0x01},
640 	{0x5785, 0x01},
641 	{0x5786, 0x00},
642 	{0x5787, 0x04},
643 	{0x5788, 0x02},
644 	{0x5789, 0x0f},
645 	{0x578a, 0xfd},
646 	{0x578b, 0xf5},
647 	{0x578c, 0xf5},
648 	{0x578d, 0x03},
649 	{0x578e, 0x08},
650 	{0x578f, 0x0c},
651 	{0x5790, 0x08},
652 	{0x5791, 0x04},
653 	{0x5792, 0x00},
654 	{0x5793, 0x52},
655 	{0x5794, 0xa3},
656 	{0x3503, 0x00}
657 };
658 
659 static const struct ov5670_reg mode_648x486_regs[] = {
660 	{0x3000, 0x00},
661 	{0x3002, 0x21},
662 	{0x3005, 0xf0},
663 	{0x3007, 0x00},
664 	{0x3015, 0x0f},
665 	{0x3018, 0x32},
666 	{0x301a, 0xf0},
667 	{0x301b, 0xf0},
668 	{0x301c, 0xf0},
669 	{0x301d, 0xf0},
670 	{0x301e, 0xf0},
671 	{0x3030, 0x00},
672 	{0x3031, 0x0a},
673 	{0x303c, 0xff},
674 	{0x303e, 0xff},
675 	{0x3040, 0xf0},
676 	{0x3041, 0x00},
677 	{0x3042, 0xf0},
678 	{0x3106, 0x11},
679 	{0x3500, 0x00},
680 	{0x3501, 0x80},
681 	{0x3502, 0x00},
682 	{0x3503, 0x04},
683 	{0x3504, 0x03},
684 	{0x3505, 0x83},
685 	{0x3508, 0x04},
686 	{0x3509, 0x00},
687 	{0x350e, 0x04},
688 	{0x350f, 0x00},
689 	{0x3510, 0x00},
690 	{0x3511, 0x02},
691 	{0x3512, 0x00},
692 	{0x3601, 0xc8},
693 	{0x3610, 0x88},
694 	{0x3612, 0x48},
695 	{0x3614, 0x5b},
696 	{0x3615, 0x96},
697 	{0x3621, 0xd0},
698 	{0x3622, 0x00},
699 	{0x3623, 0x04},
700 	{0x3633, 0x13},
701 	{0x3634, 0x13},
702 	{0x3635, 0x13},
703 	{0x3636, 0x13},
704 	{0x3645, 0x13},
705 	{0x3646, 0x82},
706 	{0x3650, 0x00},
707 	{0x3652, 0xff},
708 	{0x3655, 0x20},
709 	{0x3656, 0xff},
710 	{0x365a, 0xff},
711 	{0x365e, 0xff},
712 	{0x3668, 0x00},
713 	{0x366a, 0x07},
714 	{0x366e, 0x08},
715 	{0x366d, 0x00},
716 	{0x366f, 0x80},
717 	{0x3700, 0x28},
718 	{0x3701, 0x10},
719 	{0x3702, 0x3a},
720 	{0x3703, 0x19},
721 	{0x3704, 0x10},
722 	{0x3705, 0x00},
723 	{0x3706, 0x66},
724 	{0x3707, 0x08},
725 	{0x3708, 0x34},
726 	{0x3709, 0x40},
727 	{0x370a, 0x01},
728 	{0x370b, 0x1b},
729 	{0x3714, 0x24},
730 	{0x371a, 0x3e},
731 	{0x3733, 0x00},
732 	{0x3734, 0x00},
733 	{0x373a, 0x05},
734 	{0x373b, 0x06},
735 	{0x373c, 0x0a},
736 	{0x373f, 0xa0},
737 	{0x3755, 0x00},
738 	{0x3758, 0x00},
739 	{0x375b, 0x0e},
740 	{0x3766, 0x5f},
741 	{0x3768, 0x00},
742 	{0x3769, 0x22},
743 	{0x3773, 0x08},
744 	{0x3774, 0x1f},
745 	{0x3776, 0x06},
746 	{0x37a0, 0x88},
747 	{0x37a1, 0x5c},
748 	{0x37a7, 0x88},
749 	{0x37a8, 0x70},
750 	{0x37aa, 0x88},
751 	{0x37ab, 0x48},
752 	{0x37b3, 0x66},
753 	{0x37c2, 0x04},
754 	{0x37c5, 0x00},
755 	{0x37c8, 0x00},
756 	{0x3800, 0x00},
757 	{0x3801, 0x0c},
758 	{0x3802, 0x00},
759 	{0x3803, 0x04},
760 	{0x3804, 0x0a},
761 	{0x3805, 0x33},
762 	{0x3806, 0x07},
763 	{0x3807, 0xa3},
764 	{0x3808, 0x02},
765 	{0x3809, 0x88},
766 	{0x380a, 0x01},
767 	{0x380b, 0xe6},
768 	{0x380c, 0x06},
769 	{0x380d, 0x90},
770 	{0x380e, 0x08},
771 	{0x380f, 0x08},
772 	{0x3811, 0x04},
773 	{0x3813, 0x02},
774 	{0x3814, 0x07},
775 	{0x3815, 0x01},
776 	{0x3816, 0x00},
777 	{0x3817, 0x00},
778 	{0x3818, 0x00},
779 	{0x3819, 0x00},
780 	{0x3820, 0x94},
781 	{0x3821, 0xc6},
782 	{0x3822, 0x48},
783 	{0x3826, 0x00},
784 	{0x3827, 0x08},
785 	{0x382a, 0x07},
786 	{0x382b, 0x01},
787 	{0x3830, 0x08},
788 	{0x3836, 0x02},
789 	{0x3837, 0x00},
790 	{0x3838, 0x10},
791 	{0x3841, 0xff},
792 	{0x3846, 0x48},
793 	{0x3861, 0x00},
794 	{0x3862, 0x04},
795 	{0x3863, 0x06},
796 	{0x3a11, 0x01},
797 	{0x3a12, 0x78},
798 	{0x3b00, 0x00},
799 	{0x3b02, 0x00},
800 	{0x3b03, 0x00},
801 	{0x3b04, 0x00},
802 	{0x3b05, 0x00},
803 	{0x3c00, 0x89},
804 	{0x3c01, 0xab},
805 	{0x3c02, 0x01},
806 	{0x3c03, 0x00},
807 	{0x3c04, 0x00},
808 	{0x3c05, 0x03},
809 	{0x3c06, 0x00},
810 	{0x3c07, 0x05},
811 	{0x3c0c, 0x00},
812 	{0x3c0d, 0x00},
813 	{0x3c0e, 0x00},
814 	{0x3c0f, 0x00},
815 	{0x3c40, 0x00},
816 	{0x3c41, 0xa3},
817 	{0x3c43, 0x7d},
818 	{0x3c45, 0xd7},
819 	{0x3c47, 0xfc},
820 	{0x3c50, 0x05},
821 	{0x3c52, 0xaa},
822 	{0x3c54, 0x71},
823 	{0x3c56, 0x80},
824 	{0x3d85, 0x17},
825 	{0x3f03, 0x00},
826 	{0x3f0a, 0x00},
827 	{0x3f0b, 0x00},
828 	{0x4001, 0x60},
829 	{0x4009, 0x05},
830 	{0x4020, 0x00},
831 	{0x4021, 0x00},
832 	{0x4022, 0x00},
833 	{0x4023, 0x00},
834 	{0x4024, 0x00},
835 	{0x4025, 0x00},
836 	{0x4026, 0x00},
837 	{0x4027, 0x00},
838 	{0x4028, 0x00},
839 	{0x4029, 0x00},
840 	{0x402a, 0x00},
841 	{0x402b, 0x00},
842 	{0x402c, 0x00},
843 	{0x402d, 0x00},
844 	{0x402e, 0x00},
845 	{0x402f, 0x00},
846 	{0x4040, 0x00},
847 	{0x4041, 0x03},
848 	{0x4042, 0x00},
849 	{0x4043, 0x7A},
850 	{0x4044, 0x00},
851 	{0x4045, 0x7A},
852 	{0x4046, 0x00},
853 	{0x4047, 0x7A},
854 	{0x4048, 0x00},
855 	{0x4049, 0x7A},
856 	{0x4307, 0x30},
857 	{0x4500, 0x58},
858 	{0x4501, 0x04},
859 	{0x4502, 0x40},
860 	{0x4503, 0x10},
861 	{0x4508, 0x55},
862 	{0x4509, 0x55},
863 	{0x450a, 0x02},
864 	{0x450b, 0x00},
865 	{0x4600, 0x00},
866 	{0x4601, 0x40},
867 	{0x4700, 0xa4},
868 	{0x4800, 0x4c},
869 	{0x4816, 0x53},
870 	{0x481f, 0x40},
871 	{0x4837, 0x13},
872 	{0x5000, 0x56},
873 	{0x5001, 0x01},
874 	{0x5002, 0x28},
875 	{0x5004, 0x0c},
876 	{0x5006, 0x0c},
877 	{0x5007, 0xe0},
878 	{0x5008, 0x01},
879 	{0x5009, 0xb0},
880 	{0x5901, 0x00},
881 	{0x5a01, 0x00},
882 	{0x5a03, 0x00},
883 	{0x5a04, 0x0c},
884 	{0x5a05, 0xe0},
885 	{0x5a06, 0x09},
886 	{0x5a07, 0xb0},
887 	{0x5a08, 0x06},
888 	{0x5e00, 0x00},
889 	{0x3734, 0x40},
890 	{0x5b00, 0x01},
891 	{0x5b01, 0x10},
892 	{0x5b02, 0x01},
893 	{0x5b03, 0xdb},
894 	{0x3d8c, 0x71},
895 	{0x3d8d, 0xea},
896 	{0x4017, 0x10},
897 	{0x3618, 0x2a},
898 	{0x5780, 0x3e},
899 	{0x5781, 0x0f},
900 	{0x5782, 0x44},
901 	{0x5783, 0x02},
902 	{0x5784, 0x01},
903 	{0x5785, 0x01},
904 	{0x5786, 0x00},
905 	{0x5787, 0x04},
906 	{0x5788, 0x02},
907 	{0x5789, 0x0f},
908 	{0x578a, 0xfd},
909 	{0x578b, 0xf5},
910 	{0x578c, 0xf5},
911 	{0x578d, 0x03},
912 	{0x578e, 0x08},
913 	{0x578f, 0x0c},
914 	{0x5790, 0x08},
915 	{0x5791, 0x06},
916 	{0x5792, 0x00},
917 	{0x5793, 0x52},
918 	{0x5794, 0xa3},
919 	{0x3503, 0x00}
920 };
921 
922 static const struct ov5670_reg mode_2560x1440_regs[] = {
923 	{0x3000, 0x00},
924 	{0x3002, 0x21},
925 	{0x3005, 0xf0},
926 	{0x3007, 0x00},
927 	{0x3015, 0x0f},
928 	{0x3018, 0x32},
929 	{0x301a, 0xf0},
930 	{0x301b, 0xf0},
931 	{0x301c, 0xf0},
932 	{0x301d, 0xf0},
933 	{0x301e, 0xf0},
934 	{0x3030, 0x00},
935 	{0x3031, 0x0a},
936 	{0x303c, 0xff},
937 	{0x303e, 0xff},
938 	{0x3040, 0xf0},
939 	{0x3041, 0x00},
940 	{0x3042, 0xf0},
941 	{0x3106, 0x11},
942 	{0x3500, 0x00},
943 	{0x3501, 0x80},
944 	{0x3502, 0x00},
945 	{0x3503, 0x04},
946 	{0x3504, 0x03},
947 	{0x3505, 0x83},
948 	{0x3508, 0x04},
949 	{0x3509, 0x00},
950 	{0x350e, 0x04},
951 	{0x350f, 0x00},
952 	{0x3510, 0x00},
953 	{0x3511, 0x02},
954 	{0x3512, 0x00},
955 	{0x3601, 0xc8},
956 	{0x3610, 0x88},
957 	{0x3612, 0x48},
958 	{0x3614, 0x5b},
959 	{0x3615, 0x96},
960 	{0x3621, 0xd0},
961 	{0x3622, 0x00},
962 	{0x3623, 0x00},
963 	{0x3633, 0x13},
964 	{0x3634, 0x13},
965 	{0x3635, 0x13},
966 	{0x3636, 0x13},
967 	{0x3645, 0x13},
968 	{0x3646, 0x82},
969 	{0x3650, 0x00},
970 	{0x3652, 0xff},
971 	{0x3655, 0x20},
972 	{0x3656, 0xff},
973 	{0x365a, 0xff},
974 	{0x365e, 0xff},
975 	{0x3668, 0x00},
976 	{0x366a, 0x07},
977 	{0x366e, 0x10},
978 	{0x366d, 0x00},
979 	{0x366f, 0x80},
980 	{0x3700, 0x28},
981 	{0x3701, 0x10},
982 	{0x3702, 0x3a},
983 	{0x3703, 0x19},
984 	{0x3704, 0x10},
985 	{0x3705, 0x00},
986 	{0x3706, 0x66},
987 	{0x3707, 0x08},
988 	{0x3708, 0x34},
989 	{0x3709, 0x40},
990 	{0x370a, 0x01},
991 	{0x370b, 0x1b},
992 	{0x3714, 0x24},
993 	{0x371a, 0x3e},
994 	{0x3733, 0x00},
995 	{0x3734, 0x00},
996 	{0x373a, 0x05},
997 	{0x373b, 0x06},
998 	{0x373c, 0x0a},
999 	{0x373f, 0xa0},
1000 	{0x3755, 0x00},
1001 	{0x3758, 0x00},
1002 	{0x375b, 0x0e},
1003 	{0x3766, 0x5f},
1004 	{0x3768, 0x00},
1005 	{0x3769, 0x22},
1006 	{0x3773, 0x08},
1007 	{0x3774, 0x1f},
1008 	{0x3776, 0x06},
1009 	{0x37a0, 0x88},
1010 	{0x37a1, 0x5c},
1011 	{0x37a7, 0x88},
1012 	{0x37a8, 0x70},
1013 	{0x37aa, 0x88},
1014 	{0x37ab, 0x48},
1015 	{0x37b3, 0x66},
1016 	{0x37c2, 0x04},
1017 	{0x37c5, 0x00},
1018 	{0x37c8, 0x00},
1019 	{0x3800, 0x00},
1020 	{0x3801, 0x0c},
1021 	{0x3802, 0x00},
1022 	{0x3803, 0x04},
1023 	{0x3804, 0x0a},
1024 	{0x3805, 0x33},
1025 	{0x3806, 0x07},
1026 	{0x3807, 0xa3},
1027 	{0x3808, 0x0a},
1028 	{0x3809, 0x00},
1029 	{0x380a, 0x05},
1030 	{0x380b, 0xa0},
1031 	{0x380c, 0x06},
1032 	{0x380d, 0x90},
1033 	{0x380e, 0x08},
1034 	{0x380f, 0x08},
1035 	{0x3811, 0x04},
1036 	{0x3813, 0x02},
1037 	{0x3814, 0x01},
1038 	{0x3815, 0x01},
1039 	{0x3816, 0x00},
1040 	{0x3817, 0x00},
1041 	{0x3818, 0x00},
1042 	{0x3819, 0x00},
1043 	{0x3820, 0x84},
1044 	{0x3821, 0x46},
1045 	{0x3822, 0x48},
1046 	{0x3826, 0x00},
1047 	{0x3827, 0x08},
1048 	{0x382a, 0x01},
1049 	{0x382b, 0x01},
1050 	{0x3830, 0x08},
1051 	{0x3836, 0x02},
1052 	{0x3837, 0x00},
1053 	{0x3838, 0x10},
1054 	{0x3841, 0xff},
1055 	{0x3846, 0x48},
1056 	{0x3861, 0x00},
1057 	{0x3862, 0x04},
1058 	{0x3863, 0x06},
1059 	{0x3a11, 0x01},
1060 	{0x3a12, 0x78},
1061 	{0x3b00, 0x00},
1062 	{0x3b02, 0x00},
1063 	{0x3b03, 0x00},
1064 	{0x3b04, 0x00},
1065 	{0x3b05, 0x00},
1066 	{0x3c00, 0x89},
1067 	{0x3c01, 0xab},
1068 	{0x3c02, 0x01},
1069 	{0x3c03, 0x00},
1070 	{0x3c04, 0x00},
1071 	{0x3c05, 0x03},
1072 	{0x3c06, 0x00},
1073 	{0x3c07, 0x05},
1074 	{0x3c0c, 0x00},
1075 	{0x3c0d, 0x00},
1076 	{0x3c0e, 0x00},
1077 	{0x3c0f, 0x00},
1078 	{0x3c40, 0x00},
1079 	{0x3c41, 0xa3},
1080 	{0x3c43, 0x7d},
1081 	{0x3c45, 0xd7},
1082 	{0x3c47, 0xfc},
1083 	{0x3c50, 0x05},
1084 	{0x3c52, 0xaa},
1085 	{0x3c54, 0x71},
1086 	{0x3c56, 0x80},
1087 	{0x3d85, 0x17},
1088 	{0x3f03, 0x00},
1089 	{0x3f0a, 0x00},
1090 	{0x3f0b, 0x00},
1091 	{0x4001, 0x60},
1092 	{0x4009, 0x0d},
1093 	{0x4020, 0x00},
1094 	{0x4021, 0x00},
1095 	{0x4022, 0x00},
1096 	{0x4023, 0x00},
1097 	{0x4024, 0x00},
1098 	{0x4025, 0x00},
1099 	{0x4026, 0x00},
1100 	{0x4027, 0x00},
1101 	{0x4028, 0x00},
1102 	{0x4029, 0x00},
1103 	{0x402a, 0x00},
1104 	{0x402b, 0x00},
1105 	{0x402c, 0x00},
1106 	{0x402d, 0x00},
1107 	{0x402e, 0x00},
1108 	{0x402f, 0x00},
1109 	{0x4040, 0x00},
1110 	{0x4041, 0x03},
1111 	{0x4042, 0x00},
1112 	{0x4043, 0x7A},
1113 	{0x4044, 0x00},
1114 	{0x4045, 0x7A},
1115 	{0x4046, 0x00},
1116 	{0x4047, 0x7A},
1117 	{0x4048, 0x00},
1118 	{0x4049, 0x7A},
1119 	{0x4307, 0x30},
1120 	{0x4500, 0x58},
1121 	{0x4501, 0x04},
1122 	{0x4502, 0x40},
1123 	{0x4503, 0x10},
1124 	{0x4508, 0xaa},
1125 	{0x4509, 0xaa},
1126 	{0x450a, 0x00},
1127 	{0x450b, 0x00},
1128 	{0x4600, 0x01},
1129 	{0x4601, 0x00},
1130 	{0x4700, 0xa4},
1131 	{0x4800, 0x4c},
1132 	{0x4816, 0x53},
1133 	{0x481f, 0x40},
1134 	{0x4837, 0x13},
1135 	{0x5000, 0x56},
1136 	{0x5001, 0x01},
1137 	{0x5002, 0x28},
1138 	{0x5004, 0x0c},
1139 	{0x5006, 0x0c},
1140 	{0x5007, 0xe0},
1141 	{0x5008, 0x01},
1142 	{0x5009, 0xb0},
1143 	{0x5901, 0x00},
1144 	{0x5a01, 0x00},
1145 	{0x5a03, 0x00},
1146 	{0x5a04, 0x0c},
1147 	{0x5a05, 0xe0},
1148 	{0x5a06, 0x09},
1149 	{0x5a07, 0xb0},
1150 	{0x5a08, 0x06},
1151 	{0x5e00, 0x00},
1152 	{0x3734, 0x40},
1153 	{0x5b00, 0x01},
1154 	{0x5b01, 0x10},
1155 	{0x5b02, 0x01},
1156 	{0x5b03, 0xdb},
1157 	{0x3d8c, 0x71},
1158 	{0x3d8d, 0xea},
1159 	{0x4017, 0x08},
1160 	{0x3618, 0x2a},
1161 	{0x5780, 0x3e},
1162 	{0x5781, 0x0f},
1163 	{0x5782, 0x44},
1164 	{0x5783, 0x02},
1165 	{0x5784, 0x01},
1166 	{0x5785, 0x01},
1167 	{0x5786, 0x00},
1168 	{0x5787, 0x04},
1169 	{0x5788, 0x02},
1170 	{0x5789, 0x0f},
1171 	{0x578a, 0xfd},
1172 	{0x578b, 0xf5},
1173 	{0x578c, 0xf5},
1174 	{0x578d, 0x03},
1175 	{0x578e, 0x08},
1176 	{0x578f, 0x0c},
1177 	{0x5790, 0x08},
1178 	{0x5791, 0x06},
1179 	{0x5792, 0x00},
1180 	{0x5793, 0x52},
1181 	{0x5794, 0xa3}
1182 };
1183 
1184 static const struct ov5670_reg mode_1280x720_regs[] = {
1185 	{0x3000, 0x00},
1186 	{0x3002, 0x21},
1187 	{0x3005, 0xf0},
1188 	{0x3007, 0x00},
1189 	{0x3015, 0x0f},
1190 	{0x3018, 0x32},
1191 	{0x301a, 0xf0},
1192 	{0x301b, 0xf0},
1193 	{0x301c, 0xf0},
1194 	{0x301d, 0xf0},
1195 	{0x301e, 0xf0},
1196 	{0x3030, 0x00},
1197 	{0x3031, 0x0a},
1198 	{0x303c, 0xff},
1199 	{0x303e, 0xff},
1200 	{0x3040, 0xf0},
1201 	{0x3041, 0x00},
1202 	{0x3042, 0xf0},
1203 	{0x3106, 0x11},
1204 	{0x3500, 0x00},
1205 	{0x3501, 0x80},
1206 	{0x3502, 0x00},
1207 	{0x3503, 0x04},
1208 	{0x3504, 0x03},
1209 	{0x3505, 0x83},
1210 	{0x3508, 0x04},
1211 	{0x3509, 0x00},
1212 	{0x350e, 0x04},
1213 	{0x350f, 0x00},
1214 	{0x3510, 0x00},
1215 	{0x3511, 0x02},
1216 	{0x3512, 0x00},
1217 	{0x3601, 0xc8},
1218 	{0x3610, 0x88},
1219 	{0x3612, 0x48},
1220 	{0x3614, 0x5b},
1221 	{0x3615, 0x96},
1222 	{0x3621, 0xd0},
1223 	{0x3622, 0x00},
1224 	{0x3623, 0x00},
1225 	{0x3633, 0x13},
1226 	{0x3634, 0x13},
1227 	{0x3635, 0x13},
1228 	{0x3636, 0x13},
1229 	{0x3645, 0x13},
1230 	{0x3646, 0x82},
1231 	{0x3650, 0x00},
1232 	{0x3652, 0xff},
1233 	{0x3655, 0x20},
1234 	{0x3656, 0xff},
1235 	{0x365a, 0xff},
1236 	{0x365e, 0xff},
1237 	{0x3668, 0x00},
1238 	{0x366a, 0x07},
1239 	{0x366e, 0x08},
1240 	{0x366d, 0x00},
1241 	{0x366f, 0x80},
1242 	{0x3700, 0x28},
1243 	{0x3701, 0x10},
1244 	{0x3702, 0x3a},
1245 	{0x3703, 0x19},
1246 	{0x3704, 0x10},
1247 	{0x3705, 0x00},
1248 	{0x3706, 0x66},
1249 	{0x3707, 0x08},
1250 	{0x3708, 0x34},
1251 	{0x3709, 0x40},
1252 	{0x370a, 0x01},
1253 	{0x370b, 0x1b},
1254 	{0x3714, 0x24},
1255 	{0x371a, 0x3e},
1256 	{0x3733, 0x00},
1257 	{0x3734, 0x00},
1258 	{0x373a, 0x05},
1259 	{0x373b, 0x06},
1260 	{0x373c, 0x0a},
1261 	{0x373f, 0xa0},
1262 	{0x3755, 0x00},
1263 	{0x3758, 0x00},
1264 	{0x375b, 0x0e},
1265 	{0x3766, 0x5f},
1266 	{0x3768, 0x00},
1267 	{0x3769, 0x22},
1268 	{0x3773, 0x08},
1269 	{0x3774, 0x1f},
1270 	{0x3776, 0x06},
1271 	{0x37a0, 0x88},
1272 	{0x37a1, 0x5c},
1273 	{0x37a7, 0x88},
1274 	{0x37a8, 0x70},
1275 	{0x37aa, 0x88},
1276 	{0x37ab, 0x48},
1277 	{0x37b3, 0x66},
1278 	{0x37c2, 0x04},
1279 	{0x37c5, 0x00},
1280 	{0x37c8, 0x00},
1281 	{0x3800, 0x00},
1282 	{0x3801, 0x0c},
1283 	{0x3802, 0x00},
1284 	{0x3803, 0x04},
1285 	{0x3804, 0x0a},
1286 	{0x3805, 0x33},
1287 	{0x3806, 0x07},
1288 	{0x3807, 0xa3},
1289 	{0x3808, 0x05},
1290 	{0x3809, 0x00},
1291 	{0x380a, 0x02},
1292 	{0x380b, 0xd0},
1293 	{0x380c, 0x06},
1294 	{0x380d, 0x90},
1295 	{0x380e, 0x08},
1296 	{0x380f, 0x08},
1297 	{0x3811, 0x04},
1298 	{0x3813, 0x02},
1299 	{0x3814, 0x03},
1300 	{0x3815, 0x01},
1301 	{0x3816, 0x00},
1302 	{0x3817, 0x00},
1303 	{0x3818, 0x00},
1304 	{0x3819, 0x00},
1305 	{0x3820, 0x94},
1306 	{0x3821, 0x47},
1307 	{0x3822, 0x48},
1308 	{0x3826, 0x00},
1309 	{0x3827, 0x08},
1310 	{0x382a, 0x03},
1311 	{0x382b, 0x01},
1312 	{0x3830, 0x08},
1313 	{0x3836, 0x02},
1314 	{0x3837, 0x00},
1315 	{0x3838, 0x10},
1316 	{0x3841, 0xff},
1317 	{0x3846, 0x48},
1318 	{0x3861, 0x00},
1319 	{0x3862, 0x04},
1320 	{0x3863, 0x06},
1321 	{0x3a11, 0x01},
1322 	{0x3a12, 0x78},
1323 	{0x3b00, 0x00},
1324 	{0x3b02, 0x00},
1325 	{0x3b03, 0x00},
1326 	{0x3b04, 0x00},
1327 	{0x3b05, 0x00},
1328 	{0x3c00, 0x89},
1329 	{0x3c01, 0xab},
1330 	{0x3c02, 0x01},
1331 	{0x3c03, 0x00},
1332 	{0x3c04, 0x00},
1333 	{0x3c05, 0x03},
1334 	{0x3c06, 0x00},
1335 	{0x3c07, 0x05},
1336 	{0x3c0c, 0x00},
1337 	{0x3c0d, 0x00},
1338 	{0x3c0e, 0x00},
1339 	{0x3c0f, 0x00},
1340 	{0x3c40, 0x00},
1341 	{0x3c41, 0xa3},
1342 	{0x3c43, 0x7d},
1343 	{0x3c45, 0xd7},
1344 	{0x3c47, 0xfc},
1345 	{0x3c50, 0x05},
1346 	{0x3c52, 0xaa},
1347 	{0x3c54, 0x71},
1348 	{0x3c56, 0x80},
1349 	{0x3d85, 0x17},
1350 	{0x3f03, 0x00},
1351 	{0x3f0a, 0x00},
1352 	{0x3f0b, 0x00},
1353 	{0x4001, 0x60},
1354 	{0x4009, 0x05},
1355 	{0x4020, 0x00},
1356 	{0x4021, 0x00},
1357 	{0x4022, 0x00},
1358 	{0x4023, 0x00},
1359 	{0x4024, 0x00},
1360 	{0x4025, 0x00},
1361 	{0x4026, 0x00},
1362 	{0x4027, 0x00},
1363 	{0x4028, 0x00},
1364 	{0x4029, 0x00},
1365 	{0x402a, 0x00},
1366 	{0x402b, 0x00},
1367 	{0x402c, 0x00},
1368 	{0x402d, 0x00},
1369 	{0x402e, 0x00},
1370 	{0x402f, 0x00},
1371 	{0x4040, 0x00},
1372 	{0x4041, 0x03},
1373 	{0x4042, 0x00},
1374 	{0x4043, 0x7A},
1375 	{0x4044, 0x00},
1376 	{0x4045, 0x7A},
1377 	{0x4046, 0x00},
1378 	{0x4047, 0x7A},
1379 	{0x4048, 0x00},
1380 	{0x4049, 0x7A},
1381 	{0x4307, 0x30},
1382 	{0x4500, 0x58},
1383 	{0x4501, 0x04},
1384 	{0x4502, 0x48},
1385 	{0x4503, 0x10},
1386 	{0x4508, 0x55},
1387 	{0x4509, 0x55},
1388 	{0x450a, 0x00},
1389 	{0x450b, 0x00},
1390 	{0x4600, 0x00},
1391 	{0x4601, 0x80},
1392 	{0x4700, 0xa4},
1393 	{0x4800, 0x4c},
1394 	{0x4816, 0x53},
1395 	{0x481f, 0x40},
1396 	{0x4837, 0x13},
1397 	{0x5000, 0x56},
1398 	{0x5001, 0x01},
1399 	{0x5002, 0x28},
1400 	{0x5004, 0x0c},
1401 	{0x5006, 0x0c},
1402 	{0x5007, 0xe0},
1403 	{0x5008, 0x01},
1404 	{0x5009, 0xb0},
1405 	{0x5901, 0x00},
1406 	{0x5a01, 0x00},
1407 	{0x5a03, 0x00},
1408 	{0x5a04, 0x0c},
1409 	{0x5a05, 0xe0},
1410 	{0x5a06, 0x09},
1411 	{0x5a07, 0xb0},
1412 	{0x5a08, 0x06},
1413 	{0x5e00, 0x00},
1414 	{0x3734, 0x40},
1415 	{0x5b00, 0x01},
1416 	{0x5b01, 0x10},
1417 	{0x5b02, 0x01},
1418 	{0x5b03, 0xdb},
1419 	{0x3d8c, 0x71},
1420 	{0x3d8d, 0xea},
1421 	{0x4017, 0x10},
1422 	{0x3618, 0x2a},
1423 	{0x5780, 0x3e},
1424 	{0x5781, 0x0f},
1425 	{0x5782, 0x44},
1426 	{0x5783, 0x02},
1427 	{0x5784, 0x01},
1428 	{0x5785, 0x01},
1429 	{0x5786, 0x00},
1430 	{0x5787, 0x04},
1431 	{0x5788, 0x02},
1432 	{0x5789, 0x0f},
1433 	{0x578a, 0xfd},
1434 	{0x578b, 0xf5},
1435 	{0x578c, 0xf5},
1436 	{0x578d, 0x03},
1437 	{0x578e, 0x08},
1438 	{0x578f, 0x0c},
1439 	{0x5790, 0x08},
1440 	{0x5791, 0x06},
1441 	{0x5792, 0x00},
1442 	{0x5793, 0x52},
1443 	{0x5794, 0xa3},
1444 	{0x3503, 0x00}
1445 };
1446 
1447 static const struct ov5670_reg mode_640x360_regs[] = {
1448 	{0x3000, 0x00},
1449 	{0x3002, 0x21},
1450 	{0x3005, 0xf0},
1451 	{0x3007, 0x00},
1452 	{0x3015, 0x0f},
1453 	{0x3018, 0x32},
1454 	{0x301a, 0xf0},
1455 	{0x301b, 0xf0},
1456 	{0x301c, 0xf0},
1457 	{0x301d, 0xf0},
1458 	{0x301e, 0xf0},
1459 	{0x3030, 0x00},
1460 	{0x3031, 0x0a},
1461 	{0x303c, 0xff},
1462 	{0x303e, 0xff},
1463 	{0x3040, 0xf0},
1464 	{0x3041, 0x00},
1465 	{0x3042, 0xf0},
1466 	{0x3106, 0x11},
1467 	{0x3500, 0x00},
1468 	{0x3501, 0x80},
1469 	{0x3502, 0x00},
1470 	{0x3503, 0x04},
1471 	{0x3504, 0x03},
1472 	{0x3505, 0x83},
1473 	{0x3508, 0x04},
1474 	{0x3509, 0x00},
1475 	{0x350e, 0x04},
1476 	{0x350f, 0x00},
1477 	{0x3510, 0x00},
1478 	{0x3511, 0x02},
1479 	{0x3512, 0x00},
1480 	{0x3601, 0xc8},
1481 	{0x3610, 0x88},
1482 	{0x3612, 0x48},
1483 	{0x3614, 0x5b},
1484 	{0x3615, 0x96},
1485 	{0x3621, 0xd0},
1486 	{0x3622, 0x00},
1487 	{0x3623, 0x04},
1488 	{0x3633, 0x13},
1489 	{0x3634, 0x13},
1490 	{0x3635, 0x13},
1491 	{0x3636, 0x13},
1492 	{0x3645, 0x13},
1493 	{0x3646, 0x82},
1494 	{0x3650, 0x00},
1495 	{0x3652, 0xff},
1496 	{0x3655, 0x20},
1497 	{0x3656, 0xff},
1498 	{0x365a, 0xff},
1499 	{0x365e, 0xff},
1500 	{0x3668, 0x00},
1501 	{0x366a, 0x07},
1502 	{0x366e, 0x08},
1503 	{0x366d, 0x00},
1504 	{0x366f, 0x80},
1505 	{0x3700, 0x28},
1506 	{0x3701, 0x10},
1507 	{0x3702, 0x3a},
1508 	{0x3703, 0x19},
1509 	{0x3704, 0x10},
1510 	{0x3705, 0x00},
1511 	{0x3706, 0x66},
1512 	{0x3707, 0x08},
1513 	{0x3708, 0x34},
1514 	{0x3709, 0x40},
1515 	{0x370a, 0x01},
1516 	{0x370b, 0x1b},
1517 	{0x3714, 0x24},
1518 	{0x371a, 0x3e},
1519 	{0x3733, 0x00},
1520 	{0x3734, 0x00},
1521 	{0x373a, 0x05},
1522 	{0x373b, 0x06},
1523 	{0x373c, 0x0a},
1524 	{0x373f, 0xa0},
1525 	{0x3755, 0x00},
1526 	{0x3758, 0x00},
1527 	{0x375b, 0x0e},
1528 	{0x3766, 0x5f},
1529 	{0x3768, 0x00},
1530 	{0x3769, 0x22},
1531 	{0x3773, 0x08},
1532 	{0x3774, 0x1f},
1533 	{0x3776, 0x06},
1534 	{0x37a0, 0x88},
1535 	{0x37a1, 0x5c},
1536 	{0x37a7, 0x88},
1537 	{0x37a8, 0x70},
1538 	{0x37aa, 0x88},
1539 	{0x37ab, 0x48},
1540 	{0x37b3, 0x66},
1541 	{0x37c2, 0x04},
1542 	{0x37c5, 0x00},
1543 	{0x37c8, 0x00},
1544 	{0x3800, 0x00},
1545 	{0x3801, 0x0c},
1546 	{0x3802, 0x00},
1547 	{0x3803, 0x04},
1548 	{0x3804, 0x0a},
1549 	{0x3805, 0x33},
1550 	{0x3806, 0x07},
1551 	{0x3807, 0xa3},
1552 	{0x3808, 0x02},
1553 	{0x3809, 0x80},
1554 	{0x380a, 0x01},
1555 	{0x380b, 0x68},
1556 	{0x380c, 0x06},
1557 	{0x380d, 0x90},
1558 	{0x380e, 0x08},
1559 	{0x380f, 0x08},
1560 	{0x3811, 0x04},
1561 	{0x3813, 0x02},
1562 	{0x3814, 0x07},
1563 	{0x3815, 0x01},
1564 	{0x3816, 0x00},
1565 	{0x3817, 0x00},
1566 	{0x3818, 0x00},
1567 	{0x3819, 0x00},
1568 	{0x3820, 0x94},
1569 	{0x3821, 0xc6},
1570 	{0x3822, 0x48},
1571 	{0x3826, 0x00},
1572 	{0x3827, 0x08},
1573 	{0x382a, 0x07},
1574 	{0x382b, 0x01},
1575 	{0x3830, 0x08},
1576 	{0x3836, 0x02},
1577 	{0x3837, 0x00},
1578 	{0x3838, 0x10},
1579 	{0x3841, 0xff},
1580 	{0x3846, 0x48},
1581 	{0x3861, 0x00},
1582 	{0x3862, 0x04},
1583 	{0x3863, 0x06},
1584 	{0x3a11, 0x01},
1585 	{0x3a12, 0x78},
1586 	{0x3b00, 0x00},
1587 	{0x3b02, 0x00},
1588 	{0x3b03, 0x00},
1589 	{0x3b04, 0x00},
1590 	{0x3b05, 0x00},
1591 	{0x3c00, 0x89},
1592 	{0x3c01, 0xab},
1593 	{0x3c02, 0x01},
1594 	{0x3c03, 0x00},
1595 	{0x3c04, 0x00},
1596 	{0x3c05, 0x03},
1597 	{0x3c06, 0x00},
1598 	{0x3c07, 0x05},
1599 	{0x3c0c, 0x00},
1600 	{0x3c0d, 0x00},
1601 	{0x3c0e, 0x00},
1602 	{0x3c0f, 0x00},
1603 	{0x3c40, 0x00},
1604 	{0x3c41, 0xa3},
1605 	{0x3c43, 0x7d},
1606 	{0x3c45, 0xd7},
1607 	{0x3c47, 0xfc},
1608 	{0x3c50, 0x05},
1609 	{0x3c52, 0xaa},
1610 	{0x3c54, 0x71},
1611 	{0x3c56, 0x80},
1612 	{0x3d85, 0x17},
1613 	{0x3f03, 0x00},
1614 	{0x3f0a, 0x00},
1615 	{0x3f0b, 0x00},
1616 	{0x4001, 0x60},
1617 	{0x4009, 0x05},
1618 	{0x4020, 0x00},
1619 	{0x4021, 0x00},
1620 	{0x4022, 0x00},
1621 	{0x4023, 0x00},
1622 	{0x4024, 0x00},
1623 	{0x4025, 0x00},
1624 	{0x4026, 0x00},
1625 	{0x4027, 0x00},
1626 	{0x4028, 0x00},
1627 	{0x4029, 0x00},
1628 	{0x402a, 0x00},
1629 	{0x402b, 0x00},
1630 	{0x402c, 0x00},
1631 	{0x402d, 0x00},
1632 	{0x402e, 0x00},
1633 	{0x402f, 0x00},
1634 	{0x4040, 0x00},
1635 	{0x4041, 0x03},
1636 	{0x4042, 0x00},
1637 	{0x4043, 0x7A},
1638 	{0x4044, 0x00},
1639 	{0x4045, 0x7A},
1640 	{0x4046, 0x00},
1641 	{0x4047, 0x7A},
1642 	{0x4048, 0x00},
1643 	{0x4049, 0x7A},
1644 	{0x4307, 0x30},
1645 	{0x4500, 0x58},
1646 	{0x4501, 0x04},
1647 	{0x4502, 0x40},
1648 	{0x4503, 0x10},
1649 	{0x4508, 0x55},
1650 	{0x4509, 0x55},
1651 	{0x450a, 0x02},
1652 	{0x450b, 0x00},
1653 	{0x4600, 0x00},
1654 	{0x4601, 0x40},
1655 	{0x4700, 0xa4},
1656 	{0x4800, 0x4c},
1657 	{0x4816, 0x53},
1658 	{0x481f, 0x40},
1659 	{0x4837, 0x13},
1660 	{0x5000, 0x56},
1661 	{0x5001, 0x01},
1662 	{0x5002, 0x28},
1663 	{0x5004, 0x0c},
1664 	{0x5006, 0x0c},
1665 	{0x5007, 0xe0},
1666 	{0x5008, 0x01},
1667 	{0x5009, 0xb0},
1668 	{0x5901, 0x00},
1669 	{0x5a01, 0x00},
1670 	{0x5a03, 0x00},
1671 	{0x5a04, 0x0c},
1672 	{0x5a05, 0xe0},
1673 	{0x5a06, 0x09},
1674 	{0x5a07, 0xb0},
1675 	{0x5a08, 0x06},
1676 	{0x5e00, 0x00},
1677 	{0x3734, 0x40},
1678 	{0x5b00, 0x01},
1679 	{0x5b01, 0x10},
1680 	{0x5b02, 0x01},
1681 	{0x5b03, 0xdb},
1682 	{0x3d8c, 0x71},
1683 	{0x3d8d, 0xea},
1684 	{0x4017, 0x10},
1685 	{0x3618, 0x2a},
1686 	{0x5780, 0x3e},
1687 	{0x5781, 0x0f},
1688 	{0x5782, 0x44},
1689 	{0x5783, 0x02},
1690 	{0x5784, 0x01},
1691 	{0x5785, 0x01},
1692 	{0x5786, 0x00},
1693 	{0x5787, 0x04},
1694 	{0x5788, 0x02},
1695 	{0x5789, 0x0f},
1696 	{0x578a, 0xfd},
1697 	{0x578b, 0xf5},
1698 	{0x578c, 0xf5},
1699 	{0x578d, 0x03},
1700 	{0x578e, 0x08},
1701 	{0x578f, 0x0c},
1702 	{0x5790, 0x08},
1703 	{0x5791, 0x06},
1704 	{0x5792, 0x00},
1705 	{0x5793, 0x52},
1706 	{0x5794, 0xa3},
1707 	{0x3503, 0x00}
1708 };
1709 
1710 static const char * const ov5670_test_pattern_menu[] = {
1711 	"Disabled",
1712 	"Vertical Color Bar Type 1",
1713 };
1714 
1715 /* Supported link frequencies */
1716 #define OV5670_LINK_FREQ_422MHZ		422400000
1717 #define OV5670_LINK_FREQ_422MHZ_INDEX	0
1718 static const struct ov5670_link_freq_config link_freq_configs[] = {
1719 	{
1720 		/* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
1721 		.pixel_rate = (OV5670_LINK_FREQ_422MHZ * 2 * 2) / 10,
1722 		.reg_list = {
1723 			.num_of_regs = ARRAY_SIZE(mipi_data_rate_840mbps),
1724 			.regs = mipi_data_rate_840mbps,
1725 		}
1726 	}
1727 };
1728 
1729 static const s64 link_freq_menu_items[] = {
1730 	OV5670_LINK_FREQ_422MHZ
1731 };
1732 
1733 /*
1734  * OV5670 sensor supports following resolutions with full FOV:
1735  * 4:3  ==> {2592x1944, 1296x972, 648x486}
1736  * 16:9 ==> {2560x1440, 1280x720, 640x360}
1737  */
1738 static const struct ov5670_mode supported_modes[] = {
1739 	{
1740 		.width = 2592,
1741 		.height = 1944,
1742 		.vts_def = OV5670_VTS_30FPS,
1743 		.vts_min = OV5670_VTS_30FPS,
1744 		.reg_list = {
1745 			.num_of_regs = ARRAY_SIZE(mode_2592x1944_regs),
1746 			.regs = mode_2592x1944_regs,
1747 		},
1748 		.link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1749 	},
1750 	{
1751 		.width = 1296,
1752 		.height = 972,
1753 		.vts_def = OV5670_VTS_30FPS,
1754 		.vts_min = 996,
1755 		.reg_list = {
1756 			.num_of_regs = ARRAY_SIZE(mode_1296x972_regs),
1757 			.regs = mode_1296x972_regs,
1758 		},
1759 		.link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1760 	},
1761 	{
1762 		.width = 648,
1763 		.height = 486,
1764 		.vts_def = OV5670_VTS_30FPS,
1765 		.vts_min = 516,
1766 		.reg_list = {
1767 			.num_of_regs = ARRAY_SIZE(mode_648x486_regs),
1768 			.regs = mode_648x486_regs,
1769 		},
1770 		.link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1771 	},
1772 	{
1773 		.width = 2560,
1774 		.height = 1440,
1775 		.vts_def = OV5670_VTS_30FPS,
1776 		.vts_min = OV5670_VTS_30FPS,
1777 		.reg_list = {
1778 			.num_of_regs = ARRAY_SIZE(mode_2560x1440_regs),
1779 			.regs = mode_2560x1440_regs,
1780 		},
1781 		.link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1782 	},
1783 	{
1784 		.width = 1280,
1785 		.height = 720,
1786 		.vts_def = OV5670_VTS_30FPS,
1787 		.vts_min = 1020,
1788 		.reg_list = {
1789 			.num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
1790 			.regs = mode_1280x720_regs,
1791 		},
1792 		.link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1793 	},
1794 	{
1795 		.width = 640,
1796 		.height = 360,
1797 		.vts_def = OV5670_VTS_30FPS,
1798 		.vts_min = 510,
1799 		.reg_list = {
1800 			.num_of_regs = ARRAY_SIZE(mode_640x360_regs),
1801 			.regs = mode_640x360_regs,
1802 		},
1803 		.link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1804 	}
1805 };
1806 
1807 struct ov5670 {
1808 	struct v4l2_subdev sd;
1809 	struct media_pad pad;
1810 
1811 	struct v4l2_ctrl_handler ctrl_handler;
1812 	/* V4L2 Controls */
1813 	struct v4l2_ctrl *link_freq;
1814 	struct v4l2_ctrl *pixel_rate;
1815 	struct v4l2_ctrl *vblank;
1816 	struct v4l2_ctrl *hblank;
1817 	struct v4l2_ctrl *exposure;
1818 
1819 	/* Current mode */
1820 	const struct ov5670_mode *cur_mode;
1821 
1822 	/* To serialize asynchronus callbacks */
1823 	struct mutex mutex;
1824 
1825 	/* Streaming on/off */
1826 	bool streaming;
1827 };
1828 
1829 #define to_ov5670(_sd)	container_of(_sd, struct ov5670, sd)
1830 
1831 /* Read registers up to 4 at a time */
1832 static int ov5670_read_reg(struct ov5670 *ov5670, u16 reg, unsigned int len,
1833 			   u32 *val)
1834 {
1835 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1836 	struct i2c_msg msgs[2];
1837 	u8 *data_be_p;
1838 	u32 data_be = 0;
1839 	u16 reg_addr_be = cpu_to_be16(reg);
1840 	int ret;
1841 
1842 	if (len > 4)
1843 		return -EINVAL;
1844 
1845 	data_be_p = (u8 *)&data_be;
1846 	/* Write register address */
1847 	msgs[0].addr = client->addr;
1848 	msgs[0].flags = 0;
1849 	msgs[0].len = 2;
1850 	msgs[0].buf = (u8 *)&reg_addr_be;
1851 
1852 	/* Read data from register */
1853 	msgs[1].addr = client->addr;
1854 	msgs[1].flags = I2C_M_RD;
1855 	msgs[1].len = len;
1856 	msgs[1].buf = &data_be_p[4 - len];
1857 
1858 	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
1859 	if (ret != ARRAY_SIZE(msgs))
1860 		return -EIO;
1861 
1862 	*val = be32_to_cpu(data_be);
1863 
1864 	return 0;
1865 }
1866 
1867 /* Write registers up to 4 at a time */
1868 static int ov5670_write_reg(struct ov5670 *ov5670, u16 reg, unsigned int len,
1869 			    u32 val)
1870 {
1871 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1872 	int buf_i;
1873 	int val_i;
1874 	u8 buf[6];
1875 	u8 *val_p;
1876 
1877 	if (len > 4)
1878 		return -EINVAL;
1879 
1880 	buf[0] = reg >> 8;
1881 	buf[1] = reg & 0xff;
1882 
1883 	val = cpu_to_be32(val);
1884 	val_p = (u8 *)&val;
1885 	buf_i = 2;
1886 	val_i = 4 - len;
1887 
1888 	while (val_i < 4)
1889 		buf[buf_i++] = val_p[val_i++];
1890 
1891 	if (i2c_master_send(client, buf, len + 2) != len + 2)
1892 		return -EIO;
1893 
1894 	return 0;
1895 }
1896 
1897 /* Write a list of registers */
1898 static int ov5670_write_regs(struct ov5670 *ov5670,
1899 			     const struct ov5670_reg *regs, unsigned int len)
1900 {
1901 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1902 	unsigned int i;
1903 	int ret;
1904 
1905 	for (i = 0; i < len; i++) {
1906 		ret = ov5670_write_reg(ov5670, regs[i].address, 1, regs[i].val);
1907 		if (ret) {
1908 			dev_err_ratelimited(
1909 				&client->dev,
1910 				"Failed to write reg 0x%4.4x. error = %d\n",
1911 				regs[i].address, ret);
1912 
1913 			return ret;
1914 		}
1915 	}
1916 
1917 	return 0;
1918 }
1919 
1920 static int ov5670_write_reg_list(struct ov5670 *ov5670,
1921 				 const struct ov5670_reg_list *r_list)
1922 {
1923 	return ov5670_write_regs(ov5670, r_list->regs, r_list->num_of_regs);
1924 }
1925 
1926 /* Open sub-device */
1927 static int ov5670_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1928 {
1929 	struct ov5670 *ov5670 = to_ov5670(sd);
1930 	struct v4l2_mbus_framefmt *try_fmt =
1931 				v4l2_subdev_get_try_format(sd, fh->pad, 0);
1932 
1933 	mutex_lock(&ov5670->mutex);
1934 
1935 	/* Initialize try_fmt */
1936 	try_fmt->width = ov5670->cur_mode->width;
1937 	try_fmt->height = ov5670->cur_mode->height;
1938 	try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1939 	try_fmt->field = V4L2_FIELD_NONE;
1940 
1941 	/* No crop or compose */
1942 	mutex_unlock(&ov5670->mutex);
1943 
1944 	return 0;
1945 }
1946 
1947 static int ov5670_update_digital_gain(struct ov5670 *ov5670, u32 d_gain)
1948 {
1949 	int ret;
1950 
1951 	ret = ov5670_write_reg(ov5670, OV5670_REG_R_DGTL_GAIN,
1952 			       OV5670_REG_VALUE_16BIT, d_gain);
1953 	if (ret)
1954 		return ret;
1955 
1956 	ret = ov5670_write_reg(ov5670, OV5670_REG_G_DGTL_GAIN,
1957 			       OV5670_REG_VALUE_16BIT, d_gain);
1958 	if (ret)
1959 		return ret;
1960 
1961 	return ov5670_write_reg(ov5670, OV5670_REG_B_DGTL_GAIN,
1962 				OV5670_REG_VALUE_16BIT, d_gain);
1963 }
1964 
1965 static int ov5670_enable_test_pattern(struct ov5670 *ov5670, u32 pattern)
1966 {
1967 	u32 val;
1968 	int ret;
1969 
1970 	/* Set the bayer order that we support */
1971 	ret = ov5670_write_reg(ov5670, OV5670_REG_TEST_PATTERN_CTRL,
1972 			       OV5670_REG_VALUE_08BIT, 0);
1973 	if (ret)
1974 		return ret;
1975 
1976 	ret = ov5670_read_reg(ov5670, OV5670_REG_TEST_PATTERN,
1977 			      OV5670_REG_VALUE_08BIT, &val);
1978 	if (ret)
1979 		return ret;
1980 
1981 	if (pattern)
1982 		val |= OV5670_TEST_PATTERN_ENABLE;
1983 	else
1984 		val &= ~OV5670_TEST_PATTERN_ENABLE;
1985 
1986 	return ov5670_write_reg(ov5670, OV5670_REG_TEST_PATTERN,
1987 				OV5670_REG_VALUE_08BIT, val);
1988 }
1989 
1990 /* Initialize control handlers */
1991 static int ov5670_set_ctrl(struct v4l2_ctrl *ctrl)
1992 {
1993 	struct ov5670 *ov5670 = container_of(ctrl->handler,
1994 					     struct ov5670, ctrl_handler);
1995 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1996 	s64 max;
1997 	int ret = 0;
1998 
1999 	/* Propagate change of current control to all related controls */
2000 	switch (ctrl->id) {
2001 	case V4L2_CID_VBLANK:
2002 		/* Update max exposure while meeting expected vblanking */
2003 		max = ov5670->cur_mode->height + ctrl->val - 8;
2004 		__v4l2_ctrl_modify_range(ov5670->exposure,
2005 					 ov5670->exposure->minimum, max,
2006 					 ov5670->exposure->step, max);
2007 		break;
2008 	}
2009 
2010 	/* V4L2 controls values will be applied only when power is already up */
2011 	if (pm_runtime_get_if_in_use(&client->dev) <= 0)
2012 		return 0;
2013 
2014 	switch (ctrl->id) {
2015 	case V4L2_CID_ANALOGUE_GAIN:
2016 		ret = ov5670_write_reg(ov5670, OV5670_REG_ANALOG_GAIN,
2017 				       OV5670_REG_VALUE_16BIT, ctrl->val);
2018 		break;
2019 	case V4L2_CID_DIGITAL_GAIN:
2020 		ret = ov5670_update_digital_gain(ov5670, ctrl->val);
2021 		break;
2022 	case V4L2_CID_EXPOSURE:
2023 		/* 4 least significant bits of expsoure are fractional part */
2024 		ret = ov5670_write_reg(ov5670, OV5670_REG_EXPOSURE,
2025 				       OV5670_REG_VALUE_24BIT, ctrl->val << 4);
2026 		break;
2027 	case V4L2_CID_VBLANK:
2028 		/* Update VTS that meets expected vertical blanking */
2029 		ret = ov5670_write_reg(ov5670, OV5670_REG_VTS,
2030 				       OV5670_REG_VALUE_16BIT,
2031 				       ov5670->cur_mode->height + ctrl->val);
2032 		break;
2033 	case V4L2_CID_TEST_PATTERN:
2034 		ret = ov5670_enable_test_pattern(ov5670, ctrl->val);
2035 		break;
2036 	default:
2037 		dev_info(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
2038 			 __func__, ctrl->id, ctrl->val);
2039 		break;
2040 	}
2041 
2042 	pm_runtime_put(&client->dev);
2043 
2044 	return ret;
2045 }
2046 
2047 static const struct v4l2_ctrl_ops ov5670_ctrl_ops = {
2048 	.s_ctrl = ov5670_set_ctrl,
2049 };
2050 
2051 /* Initialize control handlers */
2052 static int ov5670_init_controls(struct ov5670 *ov5670)
2053 {
2054 	struct v4l2_ctrl_handler *ctrl_hdlr;
2055 	s64 vblank_max;
2056 	s64 vblank_def;
2057 	s64 vblank_min;
2058 	s64 exposure_max;
2059 	int ret;
2060 
2061 	ctrl_hdlr = &ov5670->ctrl_handler;
2062 	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
2063 	if (ret)
2064 		return ret;
2065 
2066 	ctrl_hdlr->lock = &ov5670->mutex;
2067 	ov5670->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
2068 						   &ov5670_ctrl_ops,
2069 						   V4L2_CID_LINK_FREQ,
2070 						   0, 0, link_freq_menu_items);
2071 	if (ov5670->link_freq)
2072 		ov5670->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2073 
2074 	/* By default, V4L2_CID_PIXEL_RATE is read only */
2075 	ov5670->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2076 					       V4L2_CID_PIXEL_RATE, 0,
2077 					       link_freq_configs[0].pixel_rate,
2078 					       1,
2079 					       link_freq_configs[0].pixel_rate);
2080 
2081 	vblank_max = OV5670_VTS_MAX - ov5670->cur_mode->height;
2082 	vblank_def = ov5670->cur_mode->vts_def - ov5670->cur_mode->height;
2083 	vblank_min = ov5670->cur_mode->vts_min - ov5670->cur_mode->height;
2084 	ov5670->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2085 					   V4L2_CID_VBLANK, vblank_min,
2086 					   vblank_max, 1, vblank_def);
2087 
2088 	ov5670->hblank = v4l2_ctrl_new_std(
2089 				ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_HBLANK,
2090 				OV5670_FIXED_PPL - ov5670->cur_mode->width,
2091 				OV5670_FIXED_PPL - ov5670->cur_mode->width, 1,
2092 				OV5670_FIXED_PPL - ov5670->cur_mode->width);
2093 	if (ov5670->hblank)
2094 		ov5670->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2095 
2096 	/* Get min, max, step, default from sensor */
2097 	v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
2098 			  ANALOG_GAIN_MIN, ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
2099 			  ANALOG_GAIN_DEFAULT);
2100 
2101 	/* Digital gain */
2102 	v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
2103 			  OV5670_DGTL_GAIN_MIN, OV5670_DGTL_GAIN_MAX,
2104 			  OV5670_DGTL_GAIN_STEP, OV5670_DGTL_GAIN_DEFAULT);
2105 
2106 	/* Get min, max, step, default from sensor */
2107 	exposure_max = ov5670->cur_mode->vts_def - 8;
2108 	ov5670->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2109 					     V4L2_CID_EXPOSURE,
2110 					     OV5670_EXPOSURE_MIN,
2111 					     exposure_max, OV5670_EXPOSURE_STEP,
2112 					     exposure_max);
2113 
2114 	v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov5670_ctrl_ops,
2115 				     V4L2_CID_TEST_PATTERN,
2116 				     ARRAY_SIZE(ov5670_test_pattern_menu) - 1,
2117 				     0, 0, ov5670_test_pattern_menu);
2118 
2119 	if (ctrl_hdlr->error) {
2120 		ret = ctrl_hdlr->error;
2121 		goto error;
2122 	}
2123 
2124 	ov5670->sd.ctrl_handler = ctrl_hdlr;
2125 
2126 	return 0;
2127 
2128 error:
2129 	v4l2_ctrl_handler_free(ctrl_hdlr);
2130 
2131 	return ret;
2132 }
2133 
2134 static int ov5670_enum_mbus_code(struct v4l2_subdev *sd,
2135 				 struct v4l2_subdev_pad_config *cfg,
2136 				 struct v4l2_subdev_mbus_code_enum *code)
2137 {
2138 	/* Only one bayer order GRBG is supported */
2139 	if (code->index > 0)
2140 		return -EINVAL;
2141 
2142 	code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
2143 
2144 	return 0;
2145 }
2146 
2147 static int ov5670_enum_frame_size(struct v4l2_subdev *sd,
2148 				  struct v4l2_subdev_pad_config *cfg,
2149 				  struct v4l2_subdev_frame_size_enum *fse)
2150 {
2151 	if (fse->index >= ARRAY_SIZE(supported_modes))
2152 		return -EINVAL;
2153 
2154 	if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
2155 		return -EINVAL;
2156 
2157 	fse->min_width = supported_modes[fse->index].width;
2158 	fse->max_width = fse->min_width;
2159 	fse->min_height = supported_modes[fse->index].height;
2160 	fse->max_height = fse->min_height;
2161 
2162 	return 0;
2163 }
2164 
2165 /* Calculate resolution distance */
2166 static int ov5670_get_reso_dist(const struct ov5670_mode *mode,
2167 				struct v4l2_mbus_framefmt *framefmt)
2168 {
2169 	return abs(mode->width - framefmt->width) +
2170 	       abs(mode->height - framefmt->height);
2171 }
2172 
2173 /* Find the closest supported resolution to the requested resolution */
2174 static const struct ov5670_mode *ov5670_find_best_fit(
2175 						struct ov5670 *ov5670,
2176 						struct v4l2_subdev_format *fmt)
2177 {
2178 	struct v4l2_mbus_framefmt *framefmt = &fmt->format;
2179 	int dist;
2180 	int cur_best_fit = 0;
2181 	int cur_best_fit_dist = -1;
2182 	int i;
2183 
2184 	for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
2185 		dist = ov5670_get_reso_dist(&supported_modes[i], framefmt);
2186 		if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
2187 			cur_best_fit_dist = dist;
2188 			cur_best_fit = i;
2189 		}
2190 	}
2191 
2192 	return &supported_modes[cur_best_fit];
2193 }
2194 
2195 static void ov5670_update_pad_format(const struct ov5670_mode *mode,
2196 				     struct v4l2_subdev_format *fmt)
2197 {
2198 	fmt->format.width = mode->width;
2199 	fmt->format.height = mode->height;
2200 	fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2201 	fmt->format.field = V4L2_FIELD_NONE;
2202 }
2203 
2204 static int ov5670_do_get_pad_format(struct ov5670 *ov5670,
2205 				    struct v4l2_subdev_pad_config *cfg,
2206 				    struct v4l2_subdev_format *fmt)
2207 {
2208 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
2209 		fmt->format = *v4l2_subdev_get_try_format(&ov5670->sd, cfg,
2210 							  fmt->pad);
2211 	else
2212 		ov5670_update_pad_format(ov5670->cur_mode, fmt);
2213 
2214 	return 0;
2215 }
2216 
2217 static int ov5670_get_pad_format(struct v4l2_subdev *sd,
2218 				 struct v4l2_subdev_pad_config *cfg,
2219 				 struct v4l2_subdev_format *fmt)
2220 {
2221 	struct ov5670 *ov5670 = to_ov5670(sd);
2222 	int ret;
2223 
2224 	mutex_lock(&ov5670->mutex);
2225 	ret = ov5670_do_get_pad_format(ov5670, cfg, fmt);
2226 	mutex_unlock(&ov5670->mutex);
2227 
2228 	return ret;
2229 }
2230 
2231 static int ov5670_set_pad_format(struct v4l2_subdev *sd,
2232 				 struct v4l2_subdev_pad_config *cfg,
2233 				 struct v4l2_subdev_format *fmt)
2234 {
2235 	struct ov5670 *ov5670 = to_ov5670(sd);
2236 	const struct ov5670_mode *mode;
2237 	s32 vblank_def;
2238 	s32 h_blank;
2239 
2240 	mutex_lock(&ov5670->mutex);
2241 
2242 	fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2243 
2244 	mode = ov5670_find_best_fit(ov5670, fmt);
2245 	ov5670_update_pad_format(mode, fmt);
2246 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
2247 		*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
2248 	} else {
2249 		ov5670->cur_mode = mode;
2250 		__v4l2_ctrl_s_ctrl(ov5670->link_freq, mode->link_freq_index);
2251 		__v4l2_ctrl_s_ctrl_int64(
2252 			ov5670->pixel_rate,
2253 			link_freq_configs[mode->link_freq_index].pixel_rate);
2254 		/* Update limits and set FPS to default */
2255 		vblank_def = ov5670->cur_mode->vts_def -
2256 			     ov5670->cur_mode->height;
2257 		__v4l2_ctrl_modify_range(
2258 			ov5670->vblank,
2259 			ov5670->cur_mode->vts_min - ov5670->cur_mode->height,
2260 			OV5670_VTS_MAX - ov5670->cur_mode->height, 1,
2261 			vblank_def);
2262 		__v4l2_ctrl_s_ctrl(ov5670->vblank, vblank_def);
2263 		h_blank = OV5670_FIXED_PPL - ov5670->cur_mode->width;
2264 		__v4l2_ctrl_modify_range(ov5670->hblank, h_blank, h_blank, 1,
2265 					 h_blank);
2266 	}
2267 
2268 	mutex_unlock(&ov5670->mutex);
2269 
2270 	return 0;
2271 }
2272 
2273 static int ov5670_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
2274 {
2275 	*frames = OV5670_NUM_OF_SKIP_FRAMES;
2276 
2277 	return 0;
2278 }
2279 
2280 /* Prepare streaming by writing default values and customized values */
2281 static int ov5670_start_streaming(struct ov5670 *ov5670)
2282 {
2283 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2284 	const struct ov5670_reg_list *reg_list;
2285 	int link_freq_index;
2286 	int ret;
2287 
2288 	/* Get out of from software reset */
2289 	ret = ov5670_write_reg(ov5670, OV5670_REG_SOFTWARE_RST,
2290 			       OV5670_REG_VALUE_08BIT, OV5670_SOFTWARE_RST);
2291 	if (ret) {
2292 		dev_err(&client->dev, "%s failed to set powerup registers\n",
2293 			__func__);
2294 		return ret;
2295 	}
2296 
2297 	/* Setup PLL */
2298 	link_freq_index = ov5670->cur_mode->link_freq_index;
2299 	reg_list = &link_freq_configs[link_freq_index].reg_list;
2300 	ret = ov5670_write_reg_list(ov5670, reg_list);
2301 	if (ret) {
2302 		dev_err(&client->dev, "%s failed to set plls\n", __func__);
2303 		return ret;
2304 	}
2305 
2306 	/* Apply default values of current mode */
2307 	reg_list = &ov5670->cur_mode->reg_list;
2308 	ret = ov5670_write_reg_list(ov5670, reg_list);
2309 	if (ret) {
2310 		dev_err(&client->dev, "%s failed to set mode\n", __func__);
2311 		return ret;
2312 	}
2313 
2314 	ret = __v4l2_ctrl_handler_setup(ov5670->sd.ctrl_handler);
2315 	if (ret)
2316 		return ret;
2317 
2318 	/* Write stream on list */
2319 	ret = ov5670_write_reg(ov5670, OV5670_REG_MODE_SELECT,
2320 			       OV5670_REG_VALUE_08BIT, OV5670_MODE_STREAMING);
2321 	if (ret) {
2322 		dev_err(&client->dev, "%s failed to set stream\n", __func__);
2323 		return ret;
2324 	}
2325 
2326 	ov5670->streaming = true;
2327 
2328 	return 0;
2329 }
2330 
2331 static int ov5670_stop_streaming(struct ov5670 *ov5670)
2332 {
2333 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2334 	int ret;
2335 
2336 	ret = ov5670_write_reg(ov5670, OV5670_REG_MODE_SELECT,
2337 			       OV5670_REG_VALUE_08BIT, OV5670_MODE_STANDBY);
2338 	if (ret)
2339 		dev_err(&client->dev, "%s failed to set stream\n", __func__);
2340 
2341 	ov5670->streaming = false;
2342 
2343 	/* Return success even if it was an error, as there is nothing the
2344 	 * caller can do about it.
2345 	 */
2346 	return 0;
2347 }
2348 
2349 static int ov5670_set_stream(struct v4l2_subdev *sd, int enable)
2350 {
2351 	struct ov5670 *ov5670 = to_ov5670(sd);
2352 	struct i2c_client *client = v4l2_get_subdevdata(sd);
2353 	int ret = 0;
2354 
2355 	mutex_lock(&ov5670->mutex);
2356 	if (ov5670->streaming == enable)
2357 		goto unlock_and_return;
2358 
2359 	if (enable) {
2360 		ret = pm_runtime_get_sync(&client->dev);
2361 		if (ret < 0) {
2362 			pm_runtime_put_noidle(&client->dev);
2363 			goto unlock_and_return;
2364 		}
2365 
2366 		ret = ov5670_start_streaming(ov5670);
2367 		if (ret)
2368 			goto error;
2369 	} else {
2370 		ret = ov5670_stop_streaming(ov5670);
2371 		pm_runtime_put(&client->dev);
2372 	}
2373 	goto unlock_and_return;
2374 
2375 error:
2376 	pm_runtime_put(&client->dev);
2377 
2378 unlock_and_return:
2379 	mutex_unlock(&ov5670->mutex);
2380 
2381 	return ret;
2382 }
2383 
2384 static int __maybe_unused ov5670_suspend(struct device *dev)
2385 {
2386 	struct i2c_client *client = to_i2c_client(dev);
2387 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
2388 	struct ov5670 *ov5670 = to_ov5670(sd);
2389 
2390 	if (ov5670->streaming)
2391 		ov5670_stop_streaming(ov5670);
2392 
2393 	return 0;
2394 }
2395 
2396 static int __maybe_unused ov5670_resume(struct device *dev)
2397 {
2398 	struct i2c_client *client = to_i2c_client(dev);
2399 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
2400 	struct ov5670 *ov5670 = to_ov5670(sd);
2401 	int ret;
2402 
2403 	if (ov5670->streaming) {
2404 		ret = ov5670_start_streaming(ov5670);
2405 		if (ret) {
2406 			ov5670_stop_streaming(ov5670);
2407 			return ret;
2408 		}
2409 	}
2410 
2411 	return 0;
2412 }
2413 
2414 /* Verify chip ID */
2415 static int ov5670_identify_module(struct ov5670 *ov5670)
2416 {
2417 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2418 	int ret;
2419 	u32 val;
2420 
2421 	ret = ov5670_read_reg(ov5670, OV5670_REG_CHIP_ID,
2422 			      OV5670_REG_VALUE_24BIT, &val);
2423 	if (ret)
2424 		return ret;
2425 
2426 	if (val != OV5670_CHIP_ID) {
2427 		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
2428 			OV5670_CHIP_ID, val);
2429 		return -ENXIO;
2430 	}
2431 
2432 	return 0;
2433 }
2434 
2435 static const struct v4l2_subdev_video_ops ov5670_video_ops = {
2436 	.s_stream = ov5670_set_stream,
2437 };
2438 
2439 static const struct v4l2_subdev_pad_ops ov5670_pad_ops = {
2440 	.enum_mbus_code = ov5670_enum_mbus_code,
2441 	.get_fmt = ov5670_get_pad_format,
2442 	.set_fmt = ov5670_set_pad_format,
2443 	.enum_frame_size = ov5670_enum_frame_size,
2444 };
2445 
2446 static const struct v4l2_subdev_sensor_ops ov5670_sensor_ops = {
2447 	.g_skip_frames = ov5670_get_skip_frames,
2448 };
2449 
2450 static const struct v4l2_subdev_ops ov5670_subdev_ops = {
2451 	.video = &ov5670_video_ops,
2452 	.pad = &ov5670_pad_ops,
2453 	.sensor = &ov5670_sensor_ops,
2454 };
2455 
2456 static const struct media_entity_operations ov5670_subdev_entity_ops = {
2457 	.link_validate = v4l2_subdev_link_validate,
2458 };
2459 
2460 static const struct v4l2_subdev_internal_ops ov5670_internal_ops = {
2461 	.open = ov5670_open,
2462 };
2463 
2464 static int ov5670_probe(struct i2c_client *client)
2465 {
2466 	struct ov5670 *ov5670;
2467 	const char *err_msg;
2468 	u32 input_clk = 0;
2469 	int ret;
2470 
2471 	device_property_read_u32(&client->dev, "clock-frequency", &input_clk);
2472 	if (input_clk != 19200000)
2473 		return -EINVAL;
2474 
2475 	ov5670 = devm_kzalloc(&client->dev, sizeof(*ov5670), GFP_KERNEL);
2476 	if (!ov5670) {
2477 		ret = -ENOMEM;
2478 		err_msg = "devm_kzalloc() error";
2479 		goto error_print;
2480 	}
2481 
2482 	/* Initialize subdev */
2483 	v4l2_i2c_subdev_init(&ov5670->sd, client, &ov5670_subdev_ops);
2484 
2485 	/* Check module identity */
2486 	ret = ov5670_identify_module(ov5670);
2487 	if (ret) {
2488 		err_msg = "ov5670_identify_module() error";
2489 		goto error_print;
2490 	}
2491 
2492 	mutex_init(&ov5670->mutex);
2493 
2494 	/* Set default mode to max resolution */
2495 	ov5670->cur_mode = &supported_modes[0];
2496 
2497 	ret = ov5670_init_controls(ov5670);
2498 	if (ret) {
2499 		err_msg = "ov5670_init_controls() error";
2500 		goto error_mutex_destroy;
2501 	}
2502 
2503 	ov5670->sd.internal_ops = &ov5670_internal_ops;
2504 	ov5670->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
2505 	ov5670->sd.entity.ops = &ov5670_subdev_entity_ops;
2506 	ov5670->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
2507 
2508 	/* Source pad initialization */
2509 	ov5670->pad.flags = MEDIA_PAD_FL_SOURCE;
2510 	ret = media_entity_pads_init(&ov5670->sd.entity, 1, &ov5670->pad);
2511 	if (ret) {
2512 		err_msg = "media_entity_pads_init() error";
2513 		goto error_handler_free;
2514 	}
2515 
2516 	/* Async register for subdev */
2517 	ret = v4l2_async_register_subdev(&ov5670->sd);
2518 	if (ret < 0) {
2519 		err_msg = "v4l2_async_register_subdev() error";
2520 		goto error_entity_cleanup;
2521 	}
2522 
2523 	ov5670->streaming = false;
2524 
2525 	/*
2526 	 * Device is already turned on by i2c-core with ACPI domain PM.
2527 	 * Enable runtime PM and turn off the device.
2528 	 */
2529 	pm_runtime_get_noresume(&client->dev);
2530 	pm_runtime_set_active(&client->dev);
2531 	pm_runtime_enable(&client->dev);
2532 	pm_runtime_put(&client->dev);
2533 
2534 	return 0;
2535 
2536 error_entity_cleanup:
2537 	media_entity_cleanup(&ov5670->sd.entity);
2538 
2539 error_handler_free:
2540 	v4l2_ctrl_handler_free(ov5670->sd.ctrl_handler);
2541 
2542 error_mutex_destroy:
2543 	mutex_destroy(&ov5670->mutex);
2544 
2545 error_print:
2546 	dev_err(&client->dev, "%s: %s %d\n", __func__, err_msg, ret);
2547 
2548 	return ret;
2549 }
2550 
2551 static int ov5670_remove(struct i2c_client *client)
2552 {
2553 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
2554 	struct ov5670 *ov5670 = to_ov5670(sd);
2555 
2556 	v4l2_async_unregister_subdev(sd);
2557 	media_entity_cleanup(&sd->entity);
2558 	v4l2_ctrl_handler_free(sd->ctrl_handler);
2559 	mutex_destroy(&ov5670->mutex);
2560 
2561 	/*
2562 	 * Disable runtime PM but keep the device turned on.
2563 	 * i2c-core with ACPI domain PM will turn off the device.
2564 	 */
2565 	pm_runtime_get_sync(&client->dev);
2566 	pm_runtime_disable(&client->dev);
2567 	pm_runtime_set_suspended(&client->dev);
2568 	pm_runtime_put_noidle(&client->dev);
2569 
2570 	return 0;
2571 }
2572 
2573 static const struct dev_pm_ops ov5670_pm_ops = {
2574 	SET_SYSTEM_SLEEP_PM_OPS(ov5670_suspend, ov5670_resume)
2575 };
2576 
2577 #ifdef CONFIG_ACPI
2578 static const struct acpi_device_id ov5670_acpi_ids[] = {
2579 	{"INT3479"},
2580 	{ /* sentinel */ }
2581 };
2582 
2583 MODULE_DEVICE_TABLE(acpi, ov5670_acpi_ids);
2584 #endif
2585 
2586 static struct i2c_driver ov5670_i2c_driver = {
2587 	.driver = {
2588 		.name = "ov5670",
2589 		.pm = &ov5670_pm_ops,
2590 		.acpi_match_table = ACPI_PTR(ov5670_acpi_ids),
2591 	},
2592 	.probe_new = ov5670_probe,
2593 	.remove = ov5670_remove,
2594 };
2595 
2596 module_i2c_driver(ov5670_i2c_driver);
2597 
2598 MODULE_AUTHOR("Rapolu, Chiranjeevi <chiranjeevi.rapolu@intel.com>");
2599 MODULE_AUTHOR("Yang, Hyungwoo <hyungwoo.yang@intel.com>");
2600 MODULE_DESCRIPTION("Omnivision ov5670 sensor driver");
2601 MODULE_LICENSE("GPL v2");
2602