xref: /linux/drivers/media/i2c/ov5670.c (revision d060296cc0300ae8ed08004ebd3994bf325fa257)
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 #define OV5670_VBLANK_MIN		56
37 
38 /* horizontal-timings from sensor */
39 #define OV5670_REG_HTS			0x380c
40 #define OV5670_DEF_PPL			3360	/* Default pixels per line */
41 
42 /* Exposure controls from sensor */
43 #define OV5670_REG_EXPOSURE		0x3500
44 #define	OV5670_EXPOSURE_MIN		4
45 #define	OV5670_EXPOSURE_STEP		1
46 
47 /* Analog gain controls from sensor */
48 #define OV5670_REG_ANALOG_GAIN		0x3508
49 #define	ANALOG_GAIN_MIN			0
50 #define	ANALOG_GAIN_MAX			8191
51 #define	ANALOG_GAIN_STEP		1
52 #define	ANALOG_GAIN_DEFAULT		128
53 
54 /* Digital gain controls from sensor */
55 #define OV5670_REG_R_DGTL_GAIN		0x5032
56 #define OV5670_REG_G_DGTL_GAIN		0x5034
57 #define OV5670_REG_B_DGTL_GAIN		0x5036
58 #define OV5670_DGTL_GAIN_MIN		0
59 #define OV5670_DGTL_GAIN_MAX		4095
60 #define OV5670_DGTL_GAIN_STEP		1
61 #define OV5670_DGTL_GAIN_DEFAULT	1024
62 
63 /* Test Pattern Control */
64 #define OV5670_REG_TEST_PATTERN		0x4303
65 #define OV5670_TEST_PATTERN_ENABLE	BIT(3)
66 #define OV5670_REG_TEST_PATTERN_CTRL	0x4320
67 
68 #define OV5670_REG_VALUE_08BIT		1
69 #define OV5670_REG_VALUE_16BIT		2
70 #define OV5670_REG_VALUE_24BIT		3
71 
72 /* Initial number of frames to skip to avoid possible garbage */
73 #define OV5670_NUM_OF_SKIP_FRAMES	2
74 
75 struct ov5670_reg {
76 	u16 address;
77 	u8 val;
78 };
79 
80 struct ov5670_reg_list {
81 	u32 num_of_regs;
82 	const struct ov5670_reg *regs;
83 };
84 
85 struct ov5670_link_freq_config {
86 	u32 pixel_rate;
87 	const struct ov5670_reg_list reg_list;
88 };
89 
90 struct ov5670_mode {
91 	/* Frame width in pixels */
92 	u32 width;
93 
94 	/* Frame height in pixels */
95 	u32 height;
96 
97 	/* Vertical timining size */
98 	u32 vts;
99 
100 	/* Link frequency needed for this resolution */
101 	u32 link_freq_index;
102 
103 	/* Sensor register settings for this resolution */
104 	const struct ov5670_reg_list reg_list;
105 };
106 
107 static const struct ov5670_reg mipi_data_rate_840mbps[] = {
108 	{0x0300, 0x04},
109 	{0x0301, 0x00},
110 	{0x0302, 0x84},
111 	{0x0303, 0x00},
112 	{0x0304, 0x03},
113 	{0x0305, 0x01},
114 	{0x0306, 0x01},
115 	{0x030a, 0x00},
116 	{0x030b, 0x00},
117 	{0x030c, 0x00},
118 	{0x030d, 0x26},
119 	{0x030e, 0x00},
120 	{0x030f, 0x06},
121 	{0x0312, 0x01},
122 	{0x3031, 0x0a},
123 };
124 
125 static const struct ov5670_reg mode_2592x1944_regs[] = {
126 	{0x3000, 0x00},
127 	{0x3002, 0x21},
128 	{0x3005, 0xf0},
129 	{0x3007, 0x00},
130 	{0x3015, 0x0f},
131 	{0x3018, 0x32},
132 	{0x301a, 0xf0},
133 	{0x301b, 0xf0},
134 	{0x301c, 0xf0},
135 	{0x301d, 0xf0},
136 	{0x301e, 0xf0},
137 	{0x3030, 0x00},
138 	{0x3031, 0x0a},
139 	{0x303c, 0xff},
140 	{0x303e, 0xff},
141 	{0x3040, 0xf0},
142 	{0x3041, 0x00},
143 	{0x3042, 0xf0},
144 	{0x3106, 0x11},
145 	{0x3500, 0x00},
146 	{0x3501, 0x80},
147 	{0x3502, 0x00},
148 	{0x3503, 0x04},
149 	{0x3504, 0x03},
150 	{0x3505, 0x83},
151 	{0x3508, 0x04},
152 	{0x3509, 0x00},
153 	{0x350e, 0x04},
154 	{0x350f, 0x00},
155 	{0x3510, 0x00},
156 	{0x3511, 0x02},
157 	{0x3512, 0x00},
158 	{0x3601, 0xc8},
159 	{0x3610, 0x88},
160 	{0x3612, 0x48},
161 	{0x3614, 0x5b},
162 	{0x3615, 0x96},
163 	{0x3621, 0xd0},
164 	{0x3622, 0x00},
165 	{0x3623, 0x00},
166 	{0x3633, 0x13},
167 	{0x3634, 0x13},
168 	{0x3635, 0x13},
169 	{0x3636, 0x13},
170 	{0x3645, 0x13},
171 	{0x3646, 0x82},
172 	{0x3650, 0x00},
173 	{0x3652, 0xff},
174 	{0x3655, 0x20},
175 	{0x3656, 0xff},
176 	{0x365a, 0xff},
177 	{0x365e, 0xff},
178 	{0x3668, 0x00},
179 	{0x366a, 0x07},
180 	{0x366e, 0x10},
181 	{0x366d, 0x00},
182 	{0x366f, 0x80},
183 	{0x3700, 0x28},
184 	{0x3701, 0x10},
185 	{0x3702, 0x3a},
186 	{0x3703, 0x19},
187 	{0x3704, 0x10},
188 	{0x3705, 0x00},
189 	{0x3706, 0x66},
190 	{0x3707, 0x08},
191 	{0x3708, 0x34},
192 	{0x3709, 0x40},
193 	{0x370a, 0x01},
194 	{0x370b, 0x1b},
195 	{0x3714, 0x24},
196 	{0x371a, 0x3e},
197 	{0x3733, 0x00},
198 	{0x3734, 0x00},
199 	{0x373a, 0x05},
200 	{0x373b, 0x06},
201 	{0x373c, 0x0a},
202 	{0x373f, 0xa0},
203 	{0x3755, 0x00},
204 	{0x3758, 0x00},
205 	{0x375b, 0x0e},
206 	{0x3766, 0x5f},
207 	{0x3768, 0x00},
208 	{0x3769, 0x22},
209 	{0x3773, 0x08},
210 	{0x3774, 0x1f},
211 	{0x3776, 0x06},
212 	{0x37a0, 0x88},
213 	{0x37a1, 0x5c},
214 	{0x37a7, 0x88},
215 	{0x37a8, 0x70},
216 	{0x37aa, 0x88},
217 	{0x37ab, 0x48},
218 	{0x37b3, 0x66},
219 	{0x37c2, 0x04},
220 	{0x37c5, 0x00},
221 	{0x37c8, 0x00},
222 	{0x3800, 0x00},
223 	{0x3801, 0x0c},
224 	{0x3802, 0x00},
225 	{0x3803, 0x04},
226 	{0x3804, 0x0a},
227 	{0x3805, 0x33},
228 	{0x3806, 0x07},
229 	{0x3807, 0xa3},
230 	{0x3808, 0x0a},
231 	{0x3809, 0x20},
232 	{0x380a, 0x07},
233 	{0x380b, 0x98},
234 	{0x380c, 0x06},
235 	{0x380d, 0x90},
236 	{0x380e, 0x08},
237 	{0x380f, 0x08},
238 	{0x3811, 0x04},
239 	{0x3813, 0x02},
240 	{0x3814, 0x01},
241 	{0x3815, 0x01},
242 	{0x3816, 0x00},
243 	{0x3817, 0x00},
244 	{0x3818, 0x00},
245 	{0x3819, 0x00},
246 	{0x3820, 0x84},
247 	{0x3821, 0x46},
248 	{0x3822, 0x48},
249 	{0x3826, 0x00},
250 	{0x3827, 0x08},
251 	{0x382a, 0x01},
252 	{0x382b, 0x01},
253 	{0x3830, 0x08},
254 	{0x3836, 0x02},
255 	{0x3837, 0x00},
256 	{0x3838, 0x10},
257 	{0x3841, 0xff},
258 	{0x3846, 0x48},
259 	{0x3861, 0x00},
260 	{0x3862, 0x04},
261 	{0x3863, 0x06},
262 	{0x3a11, 0x01},
263 	{0x3a12, 0x78},
264 	{0x3b00, 0x00},
265 	{0x3b02, 0x00},
266 	{0x3b03, 0x00},
267 	{0x3b04, 0x00},
268 	{0x3b05, 0x00},
269 	{0x3c00, 0x89},
270 	{0x3c01, 0xab},
271 	{0x3c02, 0x01},
272 	{0x3c03, 0x00},
273 	{0x3c04, 0x00},
274 	{0x3c05, 0x03},
275 	{0x3c06, 0x00},
276 	{0x3c07, 0x05},
277 	{0x3c0c, 0x00},
278 	{0x3c0d, 0x00},
279 	{0x3c0e, 0x00},
280 	{0x3c0f, 0x00},
281 	{0x3c40, 0x00},
282 	{0x3c41, 0xa3},
283 	{0x3c43, 0x7d},
284 	{0x3c45, 0xd7},
285 	{0x3c47, 0xfc},
286 	{0x3c50, 0x05},
287 	{0x3c52, 0xaa},
288 	{0x3c54, 0x71},
289 	{0x3c56, 0x80},
290 	{0x3d85, 0x17},
291 	{0x3f03, 0x00},
292 	{0x3f0a, 0x00},
293 	{0x3f0b, 0x00},
294 	{0x4001, 0x60},
295 	{0x4009, 0x0d},
296 	{0x4020, 0x00},
297 	{0x4021, 0x00},
298 	{0x4022, 0x00},
299 	{0x4023, 0x00},
300 	{0x4024, 0x00},
301 	{0x4025, 0x00},
302 	{0x4026, 0x00},
303 	{0x4027, 0x00},
304 	{0x4028, 0x00},
305 	{0x4029, 0x00},
306 	{0x402a, 0x00},
307 	{0x402b, 0x00},
308 	{0x402c, 0x00},
309 	{0x402d, 0x00},
310 	{0x402e, 0x00},
311 	{0x402f, 0x00},
312 	{0x4040, 0x00},
313 	{0x4041, 0x03},
314 	{0x4042, 0x00},
315 	{0x4043, 0x7A},
316 	{0x4044, 0x00},
317 	{0x4045, 0x7A},
318 	{0x4046, 0x00},
319 	{0x4047, 0x7A},
320 	{0x4048, 0x00},
321 	{0x4049, 0x7A},
322 	{0x4307, 0x30},
323 	{0x4500, 0x58},
324 	{0x4501, 0x04},
325 	{0x4502, 0x40},
326 	{0x4503, 0x10},
327 	{0x4508, 0xaa},
328 	{0x4509, 0xaa},
329 	{0x450a, 0x00},
330 	{0x450b, 0x00},
331 	{0x4600, 0x01},
332 	{0x4601, 0x03},
333 	{0x4700, 0xa4},
334 	{0x4800, 0x4c},
335 	{0x4816, 0x53},
336 	{0x481f, 0x40},
337 	{0x4837, 0x13},
338 	{0x5000, 0x56},
339 	{0x5001, 0x01},
340 	{0x5002, 0x28},
341 	{0x5004, 0x0c},
342 	{0x5006, 0x0c},
343 	{0x5007, 0xe0},
344 	{0x5008, 0x01},
345 	{0x5009, 0xb0},
346 	{0x5901, 0x00},
347 	{0x5a01, 0x00},
348 	{0x5a03, 0x00},
349 	{0x5a04, 0x0c},
350 	{0x5a05, 0xe0},
351 	{0x5a06, 0x09},
352 	{0x5a07, 0xb0},
353 	{0x5a08, 0x06},
354 	{0x5e00, 0x00},
355 	{0x3734, 0x40},
356 	{0x5b00, 0x01},
357 	{0x5b01, 0x10},
358 	{0x5b02, 0x01},
359 	{0x5b03, 0xdb},
360 	{0x3d8c, 0x71},
361 	{0x3d8d, 0xea},
362 	{0x4017, 0x08},
363 	{0x3618, 0x2a},
364 	{0x5780, 0x3e},
365 	{0x5781, 0x0f},
366 	{0x5782, 0x44},
367 	{0x5783, 0x02},
368 	{0x5784, 0x01},
369 	{0x5785, 0x01},
370 	{0x5786, 0x00},
371 	{0x5787, 0x04},
372 	{0x5788, 0x02},
373 	{0x5789, 0x0f},
374 	{0x578a, 0xfd},
375 	{0x578b, 0xf5},
376 	{0x578c, 0xf5},
377 	{0x578d, 0x03},
378 	{0x578e, 0x08},
379 	{0x578f, 0x0c},
380 	{0x5790, 0x08},
381 	{0x5791, 0x06},
382 	{0x5792, 0x00},
383 	{0x5793, 0x52},
384 	{0x5794, 0xa3},
385 	{0x3503, 0x00}
386 };
387 
388 static const struct ov5670_reg mode_1296x972_regs[] = {
389 	{0x3000, 0x00},
390 	{0x3002, 0x21},
391 	{0x3005, 0xf0},
392 	{0x3007, 0x00},
393 	{0x3015, 0x0f},
394 	{0x3018, 0x32},
395 	{0x301a, 0xf0},
396 	{0x301b, 0xf0},
397 	{0x301c, 0xf0},
398 	{0x301d, 0xf0},
399 	{0x301e, 0xf0},
400 	{0x3030, 0x00},
401 	{0x3031, 0x0a},
402 	{0x303c, 0xff},
403 	{0x303e, 0xff},
404 	{0x3040, 0xf0},
405 	{0x3041, 0x00},
406 	{0x3042, 0xf0},
407 	{0x3106, 0x11},
408 	{0x3500, 0x00},
409 	{0x3501, 0x80},
410 	{0x3502, 0x00},
411 	{0x3503, 0x04},
412 	{0x3504, 0x03},
413 	{0x3505, 0x83},
414 	{0x3508, 0x07},
415 	{0x3509, 0x80},
416 	{0x350e, 0x04},
417 	{0x350f, 0x00},
418 	{0x3510, 0x00},
419 	{0x3511, 0x02},
420 	{0x3512, 0x00},
421 	{0x3601, 0xc8},
422 	{0x3610, 0x88},
423 	{0x3612, 0x48},
424 	{0x3614, 0x5b},
425 	{0x3615, 0x96},
426 	{0x3621, 0xd0},
427 	{0x3622, 0x00},
428 	{0x3623, 0x00},
429 	{0x3633, 0x13},
430 	{0x3634, 0x13},
431 	{0x3635, 0x13},
432 	{0x3636, 0x13},
433 	{0x3645, 0x13},
434 	{0x3646, 0x82},
435 	{0x3650, 0x00},
436 	{0x3652, 0xff},
437 	{0x3655, 0x20},
438 	{0x3656, 0xff},
439 	{0x365a, 0xff},
440 	{0x365e, 0xff},
441 	{0x3668, 0x00},
442 	{0x366a, 0x07},
443 	{0x366e, 0x08},
444 	{0x366d, 0x00},
445 	{0x366f, 0x80},
446 	{0x3700, 0x28},
447 	{0x3701, 0x10},
448 	{0x3702, 0x3a},
449 	{0x3703, 0x19},
450 	{0x3704, 0x10},
451 	{0x3705, 0x00},
452 	{0x3706, 0x66},
453 	{0x3707, 0x08},
454 	{0x3708, 0x34},
455 	{0x3709, 0x40},
456 	{0x370a, 0x01},
457 	{0x370b, 0x1b},
458 	{0x3714, 0x24},
459 	{0x371a, 0x3e},
460 	{0x3733, 0x00},
461 	{0x3734, 0x00},
462 	{0x373a, 0x05},
463 	{0x373b, 0x06},
464 	{0x373c, 0x0a},
465 	{0x373f, 0xa0},
466 	{0x3755, 0x00},
467 	{0x3758, 0x00},
468 	{0x375b, 0x0e},
469 	{0x3766, 0x5f},
470 	{0x3768, 0x00},
471 	{0x3769, 0x22},
472 	{0x3773, 0x08},
473 	{0x3774, 0x1f},
474 	{0x3776, 0x06},
475 	{0x37a0, 0x88},
476 	{0x37a1, 0x5c},
477 	{0x37a7, 0x88},
478 	{0x37a8, 0x70},
479 	{0x37aa, 0x88},
480 	{0x37ab, 0x48},
481 	{0x37b3, 0x66},
482 	{0x37c2, 0x04},
483 	{0x37c5, 0x00},
484 	{0x37c8, 0x00},
485 	{0x3800, 0x00},
486 	{0x3801, 0x0c},
487 	{0x3802, 0x00},
488 	{0x3803, 0x04},
489 	{0x3804, 0x0a},
490 	{0x3805, 0x33},
491 	{0x3806, 0x07},
492 	{0x3807, 0xa3},
493 	{0x3808, 0x05},
494 	{0x3809, 0x10},
495 	{0x380a, 0x03},
496 	{0x380b, 0xcc},
497 	{0x380c, 0x06},
498 	{0x380d, 0x90},
499 	{0x380e, 0x08},
500 	{0x380f, 0x08},
501 	{0x3811, 0x04},
502 	{0x3813, 0x04},
503 	{0x3814, 0x03},
504 	{0x3815, 0x01},
505 	{0x3816, 0x00},
506 	{0x3817, 0x00},
507 	{0x3818, 0x00},
508 	{0x3819, 0x00},
509 	{0x3820, 0x94},
510 	{0x3821, 0x47},
511 	{0x3822, 0x48},
512 	{0x3826, 0x00},
513 	{0x3827, 0x08},
514 	{0x382a, 0x03},
515 	{0x382b, 0x01},
516 	{0x3830, 0x08},
517 	{0x3836, 0x02},
518 	{0x3837, 0x00},
519 	{0x3838, 0x10},
520 	{0x3841, 0xff},
521 	{0x3846, 0x48},
522 	{0x3861, 0x00},
523 	{0x3862, 0x04},
524 	{0x3863, 0x06},
525 	{0x3a11, 0x01},
526 	{0x3a12, 0x78},
527 	{0x3b00, 0x00},
528 	{0x3b02, 0x00},
529 	{0x3b03, 0x00},
530 	{0x3b04, 0x00},
531 	{0x3b05, 0x00},
532 	{0x3c00, 0x89},
533 	{0x3c01, 0xab},
534 	{0x3c02, 0x01},
535 	{0x3c03, 0x00},
536 	{0x3c04, 0x00},
537 	{0x3c05, 0x03},
538 	{0x3c06, 0x00},
539 	{0x3c07, 0x05},
540 	{0x3c0c, 0x00},
541 	{0x3c0d, 0x00},
542 	{0x3c0e, 0x00},
543 	{0x3c0f, 0x00},
544 	{0x3c40, 0x00},
545 	{0x3c41, 0xa3},
546 	{0x3c43, 0x7d},
547 	{0x3c45, 0xd7},
548 	{0x3c47, 0xfc},
549 	{0x3c50, 0x05},
550 	{0x3c52, 0xaa},
551 	{0x3c54, 0x71},
552 	{0x3c56, 0x80},
553 	{0x3d85, 0x17},
554 	{0x3f03, 0x00},
555 	{0x3f0a, 0x00},
556 	{0x3f0b, 0x00},
557 	{0x4001, 0x60},
558 	{0x4009, 0x05},
559 	{0x4020, 0x00},
560 	{0x4021, 0x00},
561 	{0x4022, 0x00},
562 	{0x4023, 0x00},
563 	{0x4024, 0x00},
564 	{0x4025, 0x00},
565 	{0x4026, 0x00},
566 	{0x4027, 0x00},
567 	{0x4028, 0x00},
568 	{0x4029, 0x00},
569 	{0x402a, 0x00},
570 	{0x402b, 0x00},
571 	{0x402c, 0x00},
572 	{0x402d, 0x00},
573 	{0x402e, 0x00},
574 	{0x402f, 0x00},
575 	{0x4040, 0x00},
576 	{0x4041, 0x03},
577 	{0x4042, 0x00},
578 	{0x4043, 0x7A},
579 	{0x4044, 0x00},
580 	{0x4045, 0x7A},
581 	{0x4046, 0x00},
582 	{0x4047, 0x7A},
583 	{0x4048, 0x00},
584 	{0x4049, 0x7A},
585 	{0x4307, 0x30},
586 	{0x4500, 0x58},
587 	{0x4501, 0x04},
588 	{0x4502, 0x48},
589 	{0x4503, 0x10},
590 	{0x4508, 0x55},
591 	{0x4509, 0x55},
592 	{0x450a, 0x00},
593 	{0x450b, 0x00},
594 	{0x4600, 0x00},
595 	{0x4601, 0x81},
596 	{0x4700, 0xa4},
597 	{0x4800, 0x4c},
598 	{0x4816, 0x53},
599 	{0x481f, 0x40},
600 	{0x4837, 0x13},
601 	{0x5000, 0x56},
602 	{0x5001, 0x01},
603 	{0x5002, 0x28},
604 	{0x5004, 0x0c},
605 	{0x5006, 0x0c},
606 	{0x5007, 0xe0},
607 	{0x5008, 0x01},
608 	{0x5009, 0xb0},
609 	{0x5901, 0x00},
610 	{0x5a01, 0x00},
611 	{0x5a03, 0x00},
612 	{0x5a04, 0x0c},
613 	{0x5a05, 0xe0},
614 	{0x5a06, 0x09},
615 	{0x5a07, 0xb0},
616 	{0x5a08, 0x06},
617 	{0x5e00, 0x00},
618 	{0x3734, 0x40},
619 	{0x5b00, 0x01},
620 	{0x5b01, 0x10},
621 	{0x5b02, 0x01},
622 	{0x5b03, 0xdb},
623 	{0x3d8c, 0x71},
624 	{0x3d8d, 0xea},
625 	{0x4017, 0x10},
626 	{0x3618, 0x2a},
627 	{0x5780, 0x3e},
628 	{0x5781, 0x0f},
629 	{0x5782, 0x44},
630 	{0x5783, 0x02},
631 	{0x5784, 0x01},
632 	{0x5785, 0x01},
633 	{0x5786, 0x00},
634 	{0x5787, 0x04},
635 	{0x5788, 0x02},
636 	{0x5789, 0x0f},
637 	{0x578a, 0xfd},
638 	{0x578b, 0xf5},
639 	{0x578c, 0xf5},
640 	{0x578d, 0x03},
641 	{0x578e, 0x08},
642 	{0x578f, 0x0c},
643 	{0x5790, 0x08},
644 	{0x5791, 0x04},
645 	{0x5792, 0x00},
646 	{0x5793, 0x52},
647 	{0x5794, 0xa3},
648 	{0x3503, 0x00}
649 };
650 
651 static const struct ov5670_reg mode_648x486_regs[] = {
652 	{0x3000, 0x00},
653 	{0x3002, 0x21},
654 	{0x3005, 0xf0},
655 	{0x3007, 0x00},
656 	{0x3015, 0x0f},
657 	{0x3018, 0x32},
658 	{0x301a, 0xf0},
659 	{0x301b, 0xf0},
660 	{0x301c, 0xf0},
661 	{0x301d, 0xf0},
662 	{0x301e, 0xf0},
663 	{0x3030, 0x00},
664 	{0x3031, 0x0a},
665 	{0x303c, 0xff},
666 	{0x303e, 0xff},
667 	{0x3040, 0xf0},
668 	{0x3041, 0x00},
669 	{0x3042, 0xf0},
670 	{0x3106, 0x11},
671 	{0x3500, 0x00},
672 	{0x3501, 0x80},
673 	{0x3502, 0x00},
674 	{0x3503, 0x04},
675 	{0x3504, 0x03},
676 	{0x3505, 0x83},
677 	{0x3508, 0x04},
678 	{0x3509, 0x00},
679 	{0x350e, 0x04},
680 	{0x350f, 0x00},
681 	{0x3510, 0x00},
682 	{0x3511, 0x02},
683 	{0x3512, 0x00},
684 	{0x3601, 0xc8},
685 	{0x3610, 0x88},
686 	{0x3612, 0x48},
687 	{0x3614, 0x5b},
688 	{0x3615, 0x96},
689 	{0x3621, 0xd0},
690 	{0x3622, 0x00},
691 	{0x3623, 0x04},
692 	{0x3633, 0x13},
693 	{0x3634, 0x13},
694 	{0x3635, 0x13},
695 	{0x3636, 0x13},
696 	{0x3645, 0x13},
697 	{0x3646, 0x82},
698 	{0x3650, 0x00},
699 	{0x3652, 0xff},
700 	{0x3655, 0x20},
701 	{0x3656, 0xff},
702 	{0x365a, 0xff},
703 	{0x365e, 0xff},
704 	{0x3668, 0x00},
705 	{0x366a, 0x07},
706 	{0x366e, 0x08},
707 	{0x366d, 0x00},
708 	{0x366f, 0x80},
709 	{0x3700, 0x28},
710 	{0x3701, 0x10},
711 	{0x3702, 0x3a},
712 	{0x3703, 0x19},
713 	{0x3704, 0x10},
714 	{0x3705, 0x00},
715 	{0x3706, 0x66},
716 	{0x3707, 0x08},
717 	{0x3708, 0x34},
718 	{0x3709, 0x40},
719 	{0x370a, 0x01},
720 	{0x370b, 0x1b},
721 	{0x3714, 0x24},
722 	{0x371a, 0x3e},
723 	{0x3733, 0x00},
724 	{0x3734, 0x00},
725 	{0x373a, 0x05},
726 	{0x373b, 0x06},
727 	{0x373c, 0x0a},
728 	{0x373f, 0xa0},
729 	{0x3755, 0x00},
730 	{0x3758, 0x00},
731 	{0x375b, 0x0e},
732 	{0x3766, 0x5f},
733 	{0x3768, 0x00},
734 	{0x3769, 0x22},
735 	{0x3773, 0x08},
736 	{0x3774, 0x1f},
737 	{0x3776, 0x06},
738 	{0x37a0, 0x88},
739 	{0x37a1, 0x5c},
740 	{0x37a7, 0x88},
741 	{0x37a8, 0x70},
742 	{0x37aa, 0x88},
743 	{0x37ab, 0x48},
744 	{0x37b3, 0x66},
745 	{0x37c2, 0x04},
746 	{0x37c5, 0x00},
747 	{0x37c8, 0x00},
748 	{0x3800, 0x00},
749 	{0x3801, 0x0c},
750 	{0x3802, 0x00},
751 	{0x3803, 0x04},
752 	{0x3804, 0x0a},
753 	{0x3805, 0x33},
754 	{0x3806, 0x07},
755 	{0x3807, 0xa3},
756 	{0x3808, 0x02},
757 	{0x3809, 0x88},
758 	{0x380a, 0x01},
759 	{0x380b, 0xe6},
760 	{0x380c, 0x06},
761 	{0x380d, 0x90},
762 	{0x380e, 0x08},
763 	{0x380f, 0x08},
764 	{0x3811, 0x04},
765 	{0x3813, 0x02},
766 	{0x3814, 0x07},
767 	{0x3815, 0x01},
768 	{0x3816, 0x00},
769 	{0x3817, 0x00},
770 	{0x3818, 0x00},
771 	{0x3819, 0x00},
772 	{0x3820, 0x94},
773 	{0x3821, 0xc6},
774 	{0x3822, 0x48},
775 	{0x3826, 0x00},
776 	{0x3827, 0x08},
777 	{0x382a, 0x07},
778 	{0x382b, 0x01},
779 	{0x3830, 0x08},
780 	{0x3836, 0x02},
781 	{0x3837, 0x00},
782 	{0x3838, 0x10},
783 	{0x3841, 0xff},
784 	{0x3846, 0x48},
785 	{0x3861, 0x00},
786 	{0x3862, 0x04},
787 	{0x3863, 0x06},
788 	{0x3a11, 0x01},
789 	{0x3a12, 0x78},
790 	{0x3b00, 0x00},
791 	{0x3b02, 0x00},
792 	{0x3b03, 0x00},
793 	{0x3b04, 0x00},
794 	{0x3b05, 0x00},
795 	{0x3c00, 0x89},
796 	{0x3c01, 0xab},
797 	{0x3c02, 0x01},
798 	{0x3c03, 0x00},
799 	{0x3c04, 0x00},
800 	{0x3c05, 0x03},
801 	{0x3c06, 0x00},
802 	{0x3c07, 0x05},
803 	{0x3c0c, 0x00},
804 	{0x3c0d, 0x00},
805 	{0x3c0e, 0x00},
806 	{0x3c0f, 0x00},
807 	{0x3c40, 0x00},
808 	{0x3c41, 0xa3},
809 	{0x3c43, 0x7d},
810 	{0x3c45, 0xd7},
811 	{0x3c47, 0xfc},
812 	{0x3c50, 0x05},
813 	{0x3c52, 0xaa},
814 	{0x3c54, 0x71},
815 	{0x3c56, 0x80},
816 	{0x3d85, 0x17},
817 	{0x3f03, 0x00},
818 	{0x3f0a, 0x00},
819 	{0x3f0b, 0x00},
820 	{0x4001, 0x60},
821 	{0x4009, 0x05},
822 	{0x4020, 0x00},
823 	{0x4021, 0x00},
824 	{0x4022, 0x00},
825 	{0x4023, 0x00},
826 	{0x4024, 0x00},
827 	{0x4025, 0x00},
828 	{0x4026, 0x00},
829 	{0x4027, 0x00},
830 	{0x4028, 0x00},
831 	{0x4029, 0x00},
832 	{0x402a, 0x00},
833 	{0x402b, 0x00},
834 	{0x402c, 0x00},
835 	{0x402d, 0x00},
836 	{0x402e, 0x00},
837 	{0x402f, 0x00},
838 	{0x4040, 0x00},
839 	{0x4041, 0x03},
840 	{0x4042, 0x00},
841 	{0x4043, 0x7A},
842 	{0x4044, 0x00},
843 	{0x4045, 0x7A},
844 	{0x4046, 0x00},
845 	{0x4047, 0x7A},
846 	{0x4048, 0x00},
847 	{0x4049, 0x7A},
848 	{0x4307, 0x30},
849 	{0x4500, 0x58},
850 	{0x4501, 0x04},
851 	{0x4502, 0x40},
852 	{0x4503, 0x10},
853 	{0x4508, 0x55},
854 	{0x4509, 0x55},
855 	{0x450a, 0x02},
856 	{0x450b, 0x00},
857 	{0x4600, 0x00},
858 	{0x4601, 0x40},
859 	{0x4700, 0xa4},
860 	{0x4800, 0x4c},
861 	{0x4816, 0x53},
862 	{0x481f, 0x40},
863 	{0x4837, 0x13},
864 	{0x5000, 0x56},
865 	{0x5001, 0x01},
866 	{0x5002, 0x28},
867 	{0x5004, 0x0c},
868 	{0x5006, 0x0c},
869 	{0x5007, 0xe0},
870 	{0x5008, 0x01},
871 	{0x5009, 0xb0},
872 	{0x5901, 0x00},
873 	{0x5a01, 0x00},
874 	{0x5a03, 0x00},
875 	{0x5a04, 0x0c},
876 	{0x5a05, 0xe0},
877 	{0x5a06, 0x09},
878 	{0x5a07, 0xb0},
879 	{0x5a08, 0x06},
880 	{0x5e00, 0x00},
881 	{0x3734, 0x40},
882 	{0x5b00, 0x01},
883 	{0x5b01, 0x10},
884 	{0x5b02, 0x01},
885 	{0x5b03, 0xdb},
886 	{0x3d8c, 0x71},
887 	{0x3d8d, 0xea},
888 	{0x4017, 0x10},
889 	{0x3618, 0x2a},
890 	{0x5780, 0x3e},
891 	{0x5781, 0x0f},
892 	{0x5782, 0x44},
893 	{0x5783, 0x02},
894 	{0x5784, 0x01},
895 	{0x5785, 0x01},
896 	{0x5786, 0x00},
897 	{0x5787, 0x04},
898 	{0x5788, 0x02},
899 	{0x5789, 0x0f},
900 	{0x578a, 0xfd},
901 	{0x578b, 0xf5},
902 	{0x578c, 0xf5},
903 	{0x578d, 0x03},
904 	{0x578e, 0x08},
905 	{0x578f, 0x0c},
906 	{0x5790, 0x08},
907 	{0x5791, 0x06},
908 	{0x5792, 0x00},
909 	{0x5793, 0x52},
910 	{0x5794, 0xa3},
911 	{0x3503, 0x00}
912 };
913 
914 static const struct ov5670_reg mode_2560x1440_regs[] = {
915 	{0x3000, 0x00},
916 	{0x3002, 0x21},
917 	{0x3005, 0xf0},
918 	{0x3007, 0x00},
919 	{0x3015, 0x0f},
920 	{0x3018, 0x32},
921 	{0x301a, 0xf0},
922 	{0x301b, 0xf0},
923 	{0x301c, 0xf0},
924 	{0x301d, 0xf0},
925 	{0x301e, 0xf0},
926 	{0x3030, 0x00},
927 	{0x3031, 0x0a},
928 	{0x303c, 0xff},
929 	{0x303e, 0xff},
930 	{0x3040, 0xf0},
931 	{0x3041, 0x00},
932 	{0x3042, 0xf0},
933 	{0x3106, 0x11},
934 	{0x3500, 0x00},
935 	{0x3501, 0x80},
936 	{0x3502, 0x00},
937 	{0x3503, 0x04},
938 	{0x3504, 0x03},
939 	{0x3505, 0x83},
940 	{0x3508, 0x04},
941 	{0x3509, 0x00},
942 	{0x350e, 0x04},
943 	{0x350f, 0x00},
944 	{0x3510, 0x00},
945 	{0x3511, 0x02},
946 	{0x3512, 0x00},
947 	{0x3601, 0xc8},
948 	{0x3610, 0x88},
949 	{0x3612, 0x48},
950 	{0x3614, 0x5b},
951 	{0x3615, 0x96},
952 	{0x3621, 0xd0},
953 	{0x3622, 0x00},
954 	{0x3623, 0x00},
955 	{0x3633, 0x13},
956 	{0x3634, 0x13},
957 	{0x3635, 0x13},
958 	{0x3636, 0x13},
959 	{0x3645, 0x13},
960 	{0x3646, 0x82},
961 	{0x3650, 0x00},
962 	{0x3652, 0xff},
963 	{0x3655, 0x20},
964 	{0x3656, 0xff},
965 	{0x365a, 0xff},
966 	{0x365e, 0xff},
967 	{0x3668, 0x00},
968 	{0x366a, 0x07},
969 	{0x366e, 0x10},
970 	{0x366d, 0x00},
971 	{0x366f, 0x80},
972 	{0x3700, 0x28},
973 	{0x3701, 0x10},
974 	{0x3702, 0x3a},
975 	{0x3703, 0x19},
976 	{0x3704, 0x10},
977 	{0x3705, 0x00},
978 	{0x3706, 0x66},
979 	{0x3707, 0x08},
980 	{0x3708, 0x34},
981 	{0x3709, 0x40},
982 	{0x370a, 0x01},
983 	{0x370b, 0x1b},
984 	{0x3714, 0x24},
985 	{0x371a, 0x3e},
986 	{0x3733, 0x00},
987 	{0x3734, 0x00},
988 	{0x373a, 0x05},
989 	{0x373b, 0x06},
990 	{0x373c, 0x0a},
991 	{0x373f, 0xa0},
992 	{0x3755, 0x00},
993 	{0x3758, 0x00},
994 	{0x375b, 0x0e},
995 	{0x3766, 0x5f},
996 	{0x3768, 0x00},
997 	{0x3769, 0x22},
998 	{0x3773, 0x08},
999 	{0x3774, 0x1f},
1000 	{0x3776, 0x06},
1001 	{0x37a0, 0x88},
1002 	{0x37a1, 0x5c},
1003 	{0x37a7, 0x88},
1004 	{0x37a8, 0x70},
1005 	{0x37aa, 0x88},
1006 	{0x37ab, 0x48},
1007 	{0x37b3, 0x66},
1008 	{0x37c2, 0x04},
1009 	{0x37c5, 0x00},
1010 	{0x37c8, 0x00},
1011 	{0x3800, 0x00},
1012 	{0x3801, 0x0c},
1013 	{0x3802, 0x00},
1014 	{0x3803, 0x04},
1015 	{0x3804, 0x0a},
1016 	{0x3805, 0x33},
1017 	{0x3806, 0x07},
1018 	{0x3807, 0xa3},
1019 	{0x3808, 0x0a},
1020 	{0x3809, 0x00},
1021 	{0x380a, 0x05},
1022 	{0x380b, 0xa0},
1023 	{0x380c, 0x06},
1024 	{0x380d, 0x90},
1025 	{0x380e, 0x08},
1026 	{0x380f, 0x08},
1027 	{0x3811, 0x04},
1028 	{0x3813, 0x02},
1029 	{0x3814, 0x01},
1030 	{0x3815, 0x01},
1031 	{0x3816, 0x00},
1032 	{0x3817, 0x00},
1033 	{0x3818, 0x00},
1034 	{0x3819, 0x00},
1035 	{0x3820, 0x84},
1036 	{0x3821, 0x46},
1037 	{0x3822, 0x48},
1038 	{0x3826, 0x00},
1039 	{0x3827, 0x08},
1040 	{0x382a, 0x01},
1041 	{0x382b, 0x01},
1042 	{0x3830, 0x08},
1043 	{0x3836, 0x02},
1044 	{0x3837, 0x00},
1045 	{0x3838, 0x10},
1046 	{0x3841, 0xff},
1047 	{0x3846, 0x48},
1048 	{0x3861, 0x00},
1049 	{0x3862, 0x04},
1050 	{0x3863, 0x06},
1051 	{0x3a11, 0x01},
1052 	{0x3a12, 0x78},
1053 	{0x3b00, 0x00},
1054 	{0x3b02, 0x00},
1055 	{0x3b03, 0x00},
1056 	{0x3b04, 0x00},
1057 	{0x3b05, 0x00},
1058 	{0x3c00, 0x89},
1059 	{0x3c01, 0xab},
1060 	{0x3c02, 0x01},
1061 	{0x3c03, 0x00},
1062 	{0x3c04, 0x00},
1063 	{0x3c05, 0x03},
1064 	{0x3c06, 0x00},
1065 	{0x3c07, 0x05},
1066 	{0x3c0c, 0x00},
1067 	{0x3c0d, 0x00},
1068 	{0x3c0e, 0x00},
1069 	{0x3c0f, 0x00},
1070 	{0x3c40, 0x00},
1071 	{0x3c41, 0xa3},
1072 	{0x3c43, 0x7d},
1073 	{0x3c45, 0xd7},
1074 	{0x3c47, 0xfc},
1075 	{0x3c50, 0x05},
1076 	{0x3c52, 0xaa},
1077 	{0x3c54, 0x71},
1078 	{0x3c56, 0x80},
1079 	{0x3d85, 0x17},
1080 	{0x3f03, 0x00},
1081 	{0x3f0a, 0x00},
1082 	{0x3f0b, 0x00},
1083 	{0x4001, 0x60},
1084 	{0x4009, 0x0d},
1085 	{0x4020, 0x00},
1086 	{0x4021, 0x00},
1087 	{0x4022, 0x00},
1088 	{0x4023, 0x00},
1089 	{0x4024, 0x00},
1090 	{0x4025, 0x00},
1091 	{0x4026, 0x00},
1092 	{0x4027, 0x00},
1093 	{0x4028, 0x00},
1094 	{0x4029, 0x00},
1095 	{0x402a, 0x00},
1096 	{0x402b, 0x00},
1097 	{0x402c, 0x00},
1098 	{0x402d, 0x00},
1099 	{0x402e, 0x00},
1100 	{0x402f, 0x00},
1101 	{0x4040, 0x00},
1102 	{0x4041, 0x03},
1103 	{0x4042, 0x00},
1104 	{0x4043, 0x7A},
1105 	{0x4044, 0x00},
1106 	{0x4045, 0x7A},
1107 	{0x4046, 0x00},
1108 	{0x4047, 0x7A},
1109 	{0x4048, 0x00},
1110 	{0x4049, 0x7A},
1111 	{0x4307, 0x30},
1112 	{0x4500, 0x58},
1113 	{0x4501, 0x04},
1114 	{0x4502, 0x40},
1115 	{0x4503, 0x10},
1116 	{0x4508, 0xaa},
1117 	{0x4509, 0xaa},
1118 	{0x450a, 0x00},
1119 	{0x450b, 0x00},
1120 	{0x4600, 0x01},
1121 	{0x4601, 0x00},
1122 	{0x4700, 0xa4},
1123 	{0x4800, 0x4c},
1124 	{0x4816, 0x53},
1125 	{0x481f, 0x40},
1126 	{0x4837, 0x13},
1127 	{0x5000, 0x56},
1128 	{0x5001, 0x01},
1129 	{0x5002, 0x28},
1130 	{0x5004, 0x0c},
1131 	{0x5006, 0x0c},
1132 	{0x5007, 0xe0},
1133 	{0x5008, 0x01},
1134 	{0x5009, 0xb0},
1135 	{0x5901, 0x00},
1136 	{0x5a01, 0x00},
1137 	{0x5a03, 0x00},
1138 	{0x5a04, 0x0c},
1139 	{0x5a05, 0xe0},
1140 	{0x5a06, 0x09},
1141 	{0x5a07, 0xb0},
1142 	{0x5a08, 0x06},
1143 	{0x5e00, 0x00},
1144 	{0x3734, 0x40},
1145 	{0x5b00, 0x01},
1146 	{0x5b01, 0x10},
1147 	{0x5b02, 0x01},
1148 	{0x5b03, 0xdb},
1149 	{0x3d8c, 0x71},
1150 	{0x3d8d, 0xea},
1151 	{0x4017, 0x08},
1152 	{0x3618, 0x2a},
1153 	{0x5780, 0x3e},
1154 	{0x5781, 0x0f},
1155 	{0x5782, 0x44},
1156 	{0x5783, 0x02},
1157 	{0x5784, 0x01},
1158 	{0x5785, 0x01},
1159 	{0x5786, 0x00},
1160 	{0x5787, 0x04},
1161 	{0x5788, 0x02},
1162 	{0x5789, 0x0f},
1163 	{0x578a, 0xfd},
1164 	{0x578b, 0xf5},
1165 	{0x578c, 0xf5},
1166 	{0x578d, 0x03},
1167 	{0x578e, 0x08},
1168 	{0x578f, 0x0c},
1169 	{0x5790, 0x08},
1170 	{0x5791, 0x06},
1171 	{0x5792, 0x00},
1172 	{0x5793, 0x52},
1173 	{0x5794, 0xa3}
1174 };
1175 
1176 static const struct ov5670_reg mode_1280x720_regs[] = {
1177 	{0x3000, 0x00},
1178 	{0x3002, 0x21},
1179 	{0x3005, 0xf0},
1180 	{0x3007, 0x00},
1181 	{0x3015, 0x0f},
1182 	{0x3018, 0x32},
1183 	{0x301a, 0xf0},
1184 	{0x301b, 0xf0},
1185 	{0x301c, 0xf0},
1186 	{0x301d, 0xf0},
1187 	{0x301e, 0xf0},
1188 	{0x3030, 0x00},
1189 	{0x3031, 0x0a},
1190 	{0x303c, 0xff},
1191 	{0x303e, 0xff},
1192 	{0x3040, 0xf0},
1193 	{0x3041, 0x00},
1194 	{0x3042, 0xf0},
1195 	{0x3106, 0x11},
1196 	{0x3500, 0x00},
1197 	{0x3501, 0x80},
1198 	{0x3502, 0x00},
1199 	{0x3503, 0x04},
1200 	{0x3504, 0x03},
1201 	{0x3505, 0x83},
1202 	{0x3508, 0x04},
1203 	{0x3509, 0x00},
1204 	{0x350e, 0x04},
1205 	{0x350f, 0x00},
1206 	{0x3510, 0x00},
1207 	{0x3511, 0x02},
1208 	{0x3512, 0x00},
1209 	{0x3601, 0xc8},
1210 	{0x3610, 0x88},
1211 	{0x3612, 0x48},
1212 	{0x3614, 0x5b},
1213 	{0x3615, 0x96},
1214 	{0x3621, 0xd0},
1215 	{0x3622, 0x00},
1216 	{0x3623, 0x00},
1217 	{0x3633, 0x13},
1218 	{0x3634, 0x13},
1219 	{0x3635, 0x13},
1220 	{0x3636, 0x13},
1221 	{0x3645, 0x13},
1222 	{0x3646, 0x82},
1223 	{0x3650, 0x00},
1224 	{0x3652, 0xff},
1225 	{0x3655, 0x20},
1226 	{0x3656, 0xff},
1227 	{0x365a, 0xff},
1228 	{0x365e, 0xff},
1229 	{0x3668, 0x00},
1230 	{0x366a, 0x07},
1231 	{0x366e, 0x08},
1232 	{0x366d, 0x00},
1233 	{0x366f, 0x80},
1234 	{0x3700, 0x28},
1235 	{0x3701, 0x10},
1236 	{0x3702, 0x3a},
1237 	{0x3703, 0x19},
1238 	{0x3704, 0x10},
1239 	{0x3705, 0x00},
1240 	{0x3706, 0x66},
1241 	{0x3707, 0x08},
1242 	{0x3708, 0x34},
1243 	{0x3709, 0x40},
1244 	{0x370a, 0x01},
1245 	{0x370b, 0x1b},
1246 	{0x3714, 0x24},
1247 	{0x371a, 0x3e},
1248 	{0x3733, 0x00},
1249 	{0x3734, 0x00},
1250 	{0x373a, 0x05},
1251 	{0x373b, 0x06},
1252 	{0x373c, 0x0a},
1253 	{0x373f, 0xa0},
1254 	{0x3755, 0x00},
1255 	{0x3758, 0x00},
1256 	{0x375b, 0x0e},
1257 	{0x3766, 0x5f},
1258 	{0x3768, 0x00},
1259 	{0x3769, 0x22},
1260 	{0x3773, 0x08},
1261 	{0x3774, 0x1f},
1262 	{0x3776, 0x06},
1263 	{0x37a0, 0x88},
1264 	{0x37a1, 0x5c},
1265 	{0x37a7, 0x88},
1266 	{0x37a8, 0x70},
1267 	{0x37aa, 0x88},
1268 	{0x37ab, 0x48},
1269 	{0x37b3, 0x66},
1270 	{0x37c2, 0x04},
1271 	{0x37c5, 0x00},
1272 	{0x37c8, 0x00},
1273 	{0x3800, 0x00},
1274 	{0x3801, 0x0c},
1275 	{0x3802, 0x00},
1276 	{0x3803, 0x04},
1277 	{0x3804, 0x0a},
1278 	{0x3805, 0x33},
1279 	{0x3806, 0x07},
1280 	{0x3807, 0xa3},
1281 	{0x3808, 0x05},
1282 	{0x3809, 0x00},
1283 	{0x380a, 0x02},
1284 	{0x380b, 0xd0},
1285 	{0x380c, 0x06},
1286 	{0x380d, 0x90},
1287 	{0x380e, 0x08},
1288 	{0x380f, 0x08},
1289 	{0x3811, 0x04},
1290 	{0x3813, 0x02},
1291 	{0x3814, 0x03},
1292 	{0x3815, 0x01},
1293 	{0x3816, 0x00},
1294 	{0x3817, 0x00},
1295 	{0x3818, 0x00},
1296 	{0x3819, 0x00},
1297 	{0x3820, 0x94},
1298 	{0x3821, 0x47},
1299 	{0x3822, 0x48},
1300 	{0x3826, 0x00},
1301 	{0x3827, 0x08},
1302 	{0x382a, 0x03},
1303 	{0x382b, 0x01},
1304 	{0x3830, 0x08},
1305 	{0x3836, 0x02},
1306 	{0x3837, 0x00},
1307 	{0x3838, 0x10},
1308 	{0x3841, 0xff},
1309 	{0x3846, 0x48},
1310 	{0x3861, 0x00},
1311 	{0x3862, 0x04},
1312 	{0x3863, 0x06},
1313 	{0x3a11, 0x01},
1314 	{0x3a12, 0x78},
1315 	{0x3b00, 0x00},
1316 	{0x3b02, 0x00},
1317 	{0x3b03, 0x00},
1318 	{0x3b04, 0x00},
1319 	{0x3b05, 0x00},
1320 	{0x3c00, 0x89},
1321 	{0x3c01, 0xab},
1322 	{0x3c02, 0x01},
1323 	{0x3c03, 0x00},
1324 	{0x3c04, 0x00},
1325 	{0x3c05, 0x03},
1326 	{0x3c06, 0x00},
1327 	{0x3c07, 0x05},
1328 	{0x3c0c, 0x00},
1329 	{0x3c0d, 0x00},
1330 	{0x3c0e, 0x00},
1331 	{0x3c0f, 0x00},
1332 	{0x3c40, 0x00},
1333 	{0x3c41, 0xa3},
1334 	{0x3c43, 0x7d},
1335 	{0x3c45, 0xd7},
1336 	{0x3c47, 0xfc},
1337 	{0x3c50, 0x05},
1338 	{0x3c52, 0xaa},
1339 	{0x3c54, 0x71},
1340 	{0x3c56, 0x80},
1341 	{0x3d85, 0x17},
1342 	{0x3f03, 0x00},
1343 	{0x3f0a, 0x00},
1344 	{0x3f0b, 0x00},
1345 	{0x4001, 0x60},
1346 	{0x4009, 0x05},
1347 	{0x4020, 0x00},
1348 	{0x4021, 0x00},
1349 	{0x4022, 0x00},
1350 	{0x4023, 0x00},
1351 	{0x4024, 0x00},
1352 	{0x4025, 0x00},
1353 	{0x4026, 0x00},
1354 	{0x4027, 0x00},
1355 	{0x4028, 0x00},
1356 	{0x4029, 0x00},
1357 	{0x402a, 0x00},
1358 	{0x402b, 0x00},
1359 	{0x402c, 0x00},
1360 	{0x402d, 0x00},
1361 	{0x402e, 0x00},
1362 	{0x402f, 0x00},
1363 	{0x4040, 0x00},
1364 	{0x4041, 0x03},
1365 	{0x4042, 0x00},
1366 	{0x4043, 0x7A},
1367 	{0x4044, 0x00},
1368 	{0x4045, 0x7A},
1369 	{0x4046, 0x00},
1370 	{0x4047, 0x7A},
1371 	{0x4048, 0x00},
1372 	{0x4049, 0x7A},
1373 	{0x4307, 0x30},
1374 	{0x4500, 0x58},
1375 	{0x4501, 0x04},
1376 	{0x4502, 0x48},
1377 	{0x4503, 0x10},
1378 	{0x4508, 0x55},
1379 	{0x4509, 0x55},
1380 	{0x450a, 0x00},
1381 	{0x450b, 0x00},
1382 	{0x4600, 0x00},
1383 	{0x4601, 0x80},
1384 	{0x4700, 0xa4},
1385 	{0x4800, 0x4c},
1386 	{0x4816, 0x53},
1387 	{0x481f, 0x40},
1388 	{0x4837, 0x13},
1389 	{0x5000, 0x56},
1390 	{0x5001, 0x01},
1391 	{0x5002, 0x28},
1392 	{0x5004, 0x0c},
1393 	{0x5006, 0x0c},
1394 	{0x5007, 0xe0},
1395 	{0x5008, 0x01},
1396 	{0x5009, 0xb0},
1397 	{0x5901, 0x00},
1398 	{0x5a01, 0x00},
1399 	{0x5a03, 0x00},
1400 	{0x5a04, 0x0c},
1401 	{0x5a05, 0xe0},
1402 	{0x5a06, 0x09},
1403 	{0x5a07, 0xb0},
1404 	{0x5a08, 0x06},
1405 	{0x5e00, 0x00},
1406 	{0x3734, 0x40},
1407 	{0x5b00, 0x01},
1408 	{0x5b01, 0x10},
1409 	{0x5b02, 0x01},
1410 	{0x5b03, 0xdb},
1411 	{0x3d8c, 0x71},
1412 	{0x3d8d, 0xea},
1413 	{0x4017, 0x10},
1414 	{0x3618, 0x2a},
1415 	{0x5780, 0x3e},
1416 	{0x5781, 0x0f},
1417 	{0x5782, 0x44},
1418 	{0x5783, 0x02},
1419 	{0x5784, 0x01},
1420 	{0x5785, 0x01},
1421 	{0x5786, 0x00},
1422 	{0x5787, 0x04},
1423 	{0x5788, 0x02},
1424 	{0x5789, 0x0f},
1425 	{0x578a, 0xfd},
1426 	{0x578b, 0xf5},
1427 	{0x578c, 0xf5},
1428 	{0x578d, 0x03},
1429 	{0x578e, 0x08},
1430 	{0x578f, 0x0c},
1431 	{0x5790, 0x08},
1432 	{0x5791, 0x06},
1433 	{0x5792, 0x00},
1434 	{0x5793, 0x52},
1435 	{0x5794, 0xa3},
1436 	{0x3503, 0x00}
1437 };
1438 
1439 static const struct ov5670_reg mode_640x360_regs[] = {
1440 	{0x3000, 0x00},
1441 	{0x3002, 0x21},
1442 	{0x3005, 0xf0},
1443 	{0x3007, 0x00},
1444 	{0x3015, 0x0f},
1445 	{0x3018, 0x32},
1446 	{0x301a, 0xf0},
1447 	{0x301b, 0xf0},
1448 	{0x301c, 0xf0},
1449 	{0x301d, 0xf0},
1450 	{0x301e, 0xf0},
1451 	{0x3030, 0x00},
1452 	{0x3031, 0x0a},
1453 	{0x303c, 0xff},
1454 	{0x303e, 0xff},
1455 	{0x3040, 0xf0},
1456 	{0x3041, 0x00},
1457 	{0x3042, 0xf0},
1458 	{0x3106, 0x11},
1459 	{0x3500, 0x00},
1460 	{0x3501, 0x80},
1461 	{0x3502, 0x00},
1462 	{0x3503, 0x04},
1463 	{0x3504, 0x03},
1464 	{0x3505, 0x83},
1465 	{0x3508, 0x04},
1466 	{0x3509, 0x00},
1467 	{0x350e, 0x04},
1468 	{0x350f, 0x00},
1469 	{0x3510, 0x00},
1470 	{0x3511, 0x02},
1471 	{0x3512, 0x00},
1472 	{0x3601, 0xc8},
1473 	{0x3610, 0x88},
1474 	{0x3612, 0x48},
1475 	{0x3614, 0x5b},
1476 	{0x3615, 0x96},
1477 	{0x3621, 0xd0},
1478 	{0x3622, 0x00},
1479 	{0x3623, 0x04},
1480 	{0x3633, 0x13},
1481 	{0x3634, 0x13},
1482 	{0x3635, 0x13},
1483 	{0x3636, 0x13},
1484 	{0x3645, 0x13},
1485 	{0x3646, 0x82},
1486 	{0x3650, 0x00},
1487 	{0x3652, 0xff},
1488 	{0x3655, 0x20},
1489 	{0x3656, 0xff},
1490 	{0x365a, 0xff},
1491 	{0x365e, 0xff},
1492 	{0x3668, 0x00},
1493 	{0x366a, 0x07},
1494 	{0x366e, 0x08},
1495 	{0x366d, 0x00},
1496 	{0x366f, 0x80},
1497 	{0x3700, 0x28},
1498 	{0x3701, 0x10},
1499 	{0x3702, 0x3a},
1500 	{0x3703, 0x19},
1501 	{0x3704, 0x10},
1502 	{0x3705, 0x00},
1503 	{0x3706, 0x66},
1504 	{0x3707, 0x08},
1505 	{0x3708, 0x34},
1506 	{0x3709, 0x40},
1507 	{0x370a, 0x01},
1508 	{0x370b, 0x1b},
1509 	{0x3714, 0x24},
1510 	{0x371a, 0x3e},
1511 	{0x3733, 0x00},
1512 	{0x3734, 0x00},
1513 	{0x373a, 0x05},
1514 	{0x373b, 0x06},
1515 	{0x373c, 0x0a},
1516 	{0x373f, 0xa0},
1517 	{0x3755, 0x00},
1518 	{0x3758, 0x00},
1519 	{0x375b, 0x0e},
1520 	{0x3766, 0x5f},
1521 	{0x3768, 0x00},
1522 	{0x3769, 0x22},
1523 	{0x3773, 0x08},
1524 	{0x3774, 0x1f},
1525 	{0x3776, 0x06},
1526 	{0x37a0, 0x88},
1527 	{0x37a1, 0x5c},
1528 	{0x37a7, 0x88},
1529 	{0x37a8, 0x70},
1530 	{0x37aa, 0x88},
1531 	{0x37ab, 0x48},
1532 	{0x37b3, 0x66},
1533 	{0x37c2, 0x04},
1534 	{0x37c5, 0x00},
1535 	{0x37c8, 0x00},
1536 	{0x3800, 0x00},
1537 	{0x3801, 0x0c},
1538 	{0x3802, 0x00},
1539 	{0x3803, 0x04},
1540 	{0x3804, 0x0a},
1541 	{0x3805, 0x33},
1542 	{0x3806, 0x07},
1543 	{0x3807, 0xa3},
1544 	{0x3808, 0x02},
1545 	{0x3809, 0x80},
1546 	{0x380a, 0x01},
1547 	{0x380b, 0x68},
1548 	{0x380c, 0x06},
1549 	{0x380d, 0x90},
1550 	{0x380e, 0x08},
1551 	{0x380f, 0x08},
1552 	{0x3811, 0x04},
1553 	{0x3813, 0x02},
1554 	{0x3814, 0x07},
1555 	{0x3815, 0x01},
1556 	{0x3816, 0x00},
1557 	{0x3817, 0x00},
1558 	{0x3818, 0x00},
1559 	{0x3819, 0x00},
1560 	{0x3820, 0x94},
1561 	{0x3821, 0xc6},
1562 	{0x3822, 0x48},
1563 	{0x3826, 0x00},
1564 	{0x3827, 0x08},
1565 	{0x382a, 0x07},
1566 	{0x382b, 0x01},
1567 	{0x3830, 0x08},
1568 	{0x3836, 0x02},
1569 	{0x3837, 0x00},
1570 	{0x3838, 0x10},
1571 	{0x3841, 0xff},
1572 	{0x3846, 0x48},
1573 	{0x3861, 0x00},
1574 	{0x3862, 0x04},
1575 	{0x3863, 0x06},
1576 	{0x3a11, 0x01},
1577 	{0x3a12, 0x78},
1578 	{0x3b00, 0x00},
1579 	{0x3b02, 0x00},
1580 	{0x3b03, 0x00},
1581 	{0x3b04, 0x00},
1582 	{0x3b05, 0x00},
1583 	{0x3c00, 0x89},
1584 	{0x3c01, 0xab},
1585 	{0x3c02, 0x01},
1586 	{0x3c03, 0x00},
1587 	{0x3c04, 0x00},
1588 	{0x3c05, 0x03},
1589 	{0x3c06, 0x00},
1590 	{0x3c07, 0x05},
1591 	{0x3c0c, 0x00},
1592 	{0x3c0d, 0x00},
1593 	{0x3c0e, 0x00},
1594 	{0x3c0f, 0x00},
1595 	{0x3c40, 0x00},
1596 	{0x3c41, 0xa3},
1597 	{0x3c43, 0x7d},
1598 	{0x3c45, 0xd7},
1599 	{0x3c47, 0xfc},
1600 	{0x3c50, 0x05},
1601 	{0x3c52, 0xaa},
1602 	{0x3c54, 0x71},
1603 	{0x3c56, 0x80},
1604 	{0x3d85, 0x17},
1605 	{0x3f03, 0x00},
1606 	{0x3f0a, 0x00},
1607 	{0x3f0b, 0x00},
1608 	{0x4001, 0x60},
1609 	{0x4009, 0x05},
1610 	{0x4020, 0x00},
1611 	{0x4021, 0x00},
1612 	{0x4022, 0x00},
1613 	{0x4023, 0x00},
1614 	{0x4024, 0x00},
1615 	{0x4025, 0x00},
1616 	{0x4026, 0x00},
1617 	{0x4027, 0x00},
1618 	{0x4028, 0x00},
1619 	{0x4029, 0x00},
1620 	{0x402a, 0x00},
1621 	{0x402b, 0x00},
1622 	{0x402c, 0x00},
1623 	{0x402d, 0x00},
1624 	{0x402e, 0x00},
1625 	{0x402f, 0x00},
1626 	{0x4040, 0x00},
1627 	{0x4041, 0x03},
1628 	{0x4042, 0x00},
1629 	{0x4043, 0x7A},
1630 	{0x4044, 0x00},
1631 	{0x4045, 0x7A},
1632 	{0x4046, 0x00},
1633 	{0x4047, 0x7A},
1634 	{0x4048, 0x00},
1635 	{0x4049, 0x7A},
1636 	{0x4307, 0x30},
1637 	{0x4500, 0x58},
1638 	{0x4501, 0x04},
1639 	{0x4502, 0x40},
1640 	{0x4503, 0x10},
1641 	{0x4508, 0x55},
1642 	{0x4509, 0x55},
1643 	{0x450a, 0x02},
1644 	{0x450b, 0x00},
1645 	{0x4600, 0x00},
1646 	{0x4601, 0x40},
1647 	{0x4700, 0xa4},
1648 	{0x4800, 0x4c},
1649 	{0x4816, 0x53},
1650 	{0x481f, 0x40},
1651 	{0x4837, 0x13},
1652 	{0x5000, 0x56},
1653 	{0x5001, 0x01},
1654 	{0x5002, 0x28},
1655 	{0x5004, 0x0c},
1656 	{0x5006, 0x0c},
1657 	{0x5007, 0xe0},
1658 	{0x5008, 0x01},
1659 	{0x5009, 0xb0},
1660 	{0x5901, 0x00},
1661 	{0x5a01, 0x00},
1662 	{0x5a03, 0x00},
1663 	{0x5a04, 0x0c},
1664 	{0x5a05, 0xe0},
1665 	{0x5a06, 0x09},
1666 	{0x5a07, 0xb0},
1667 	{0x5a08, 0x06},
1668 	{0x5e00, 0x00},
1669 	{0x3734, 0x40},
1670 	{0x5b00, 0x01},
1671 	{0x5b01, 0x10},
1672 	{0x5b02, 0x01},
1673 	{0x5b03, 0xdb},
1674 	{0x3d8c, 0x71},
1675 	{0x3d8d, 0xea},
1676 	{0x4017, 0x10},
1677 	{0x3618, 0x2a},
1678 	{0x5780, 0x3e},
1679 	{0x5781, 0x0f},
1680 	{0x5782, 0x44},
1681 	{0x5783, 0x02},
1682 	{0x5784, 0x01},
1683 	{0x5785, 0x01},
1684 	{0x5786, 0x00},
1685 	{0x5787, 0x04},
1686 	{0x5788, 0x02},
1687 	{0x5789, 0x0f},
1688 	{0x578a, 0xfd},
1689 	{0x578b, 0xf5},
1690 	{0x578c, 0xf5},
1691 	{0x578d, 0x03},
1692 	{0x578e, 0x08},
1693 	{0x578f, 0x0c},
1694 	{0x5790, 0x08},
1695 	{0x5791, 0x06},
1696 	{0x5792, 0x00},
1697 	{0x5793, 0x52},
1698 	{0x5794, 0xa3},
1699 	{0x3503, 0x00}
1700 };
1701 
1702 static const char * const ov5670_test_pattern_menu[] = {
1703 	"Disabled",
1704 	"Vertical Color Bar Type 1",
1705 };
1706 
1707 /* Supported link frequencies */
1708 #define OV5670_LINK_FREQ_420MHZ		420000000
1709 #define OV5670_LINK_FREQ_420MHZ_INDEX	0
1710 static const struct ov5670_link_freq_config link_freq_configs[] = {
1711 	{
1712 		/* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
1713 		.pixel_rate = (OV5670_LINK_FREQ_420MHZ * 2 * 2) / 10,
1714 		.reg_list = {
1715 			.num_of_regs = ARRAY_SIZE(mipi_data_rate_840mbps),
1716 			.regs = mipi_data_rate_840mbps,
1717 		}
1718 	}
1719 };
1720 
1721 static const s64 link_freq_menu_items[] = {
1722 	OV5670_LINK_FREQ_420MHZ
1723 };
1724 
1725 /*
1726  * OV5670 sensor supports following resolutions with full FOV:
1727  * 4:3  ==> {2592x1944, 1296x972, 648x486}
1728  * 16:9 ==> {2560x1440, 1280x720, 640x360}
1729  */
1730 static const struct ov5670_mode supported_modes[] = {
1731 	{
1732 		.width = 2592,
1733 		.height = 1944,
1734 		.vts = OV5670_VTS_30FPS,
1735 		.reg_list = {
1736 			.num_of_regs = ARRAY_SIZE(mode_2592x1944_regs),
1737 			.regs = mode_2592x1944_regs,
1738 		},
1739 		.link_freq_index = OV5670_LINK_FREQ_420MHZ_INDEX,
1740 	},
1741 	{
1742 		.width = 1296,
1743 		.height = 972,
1744 		.vts = OV5670_VTS_30FPS,
1745 		.reg_list = {
1746 			.num_of_regs = ARRAY_SIZE(mode_1296x972_regs),
1747 			.regs = mode_1296x972_regs,
1748 		},
1749 		.link_freq_index = OV5670_LINK_FREQ_420MHZ_INDEX,
1750 	},
1751 	{
1752 		.width = 648,
1753 		.height = 486,
1754 		.vts = OV5670_VTS_30FPS,
1755 		.reg_list = {
1756 			.num_of_regs = ARRAY_SIZE(mode_648x486_regs),
1757 			.regs = mode_648x486_regs,
1758 		},
1759 		.link_freq_index = OV5670_LINK_FREQ_420MHZ_INDEX,
1760 	},
1761 	{
1762 		.width = 2560,
1763 		.height = 1440,
1764 		.vts = OV5670_VTS_30FPS,
1765 		.reg_list = {
1766 			.num_of_regs = ARRAY_SIZE(mode_2560x1440_regs),
1767 			.regs = mode_2560x1440_regs,
1768 		},
1769 		.link_freq_index = OV5670_LINK_FREQ_420MHZ_INDEX,
1770 	},
1771 	{
1772 		.width = 1280,
1773 		.height = 720,
1774 		.vts = OV5670_VTS_30FPS,
1775 		.reg_list = {
1776 			.num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
1777 			.regs = mode_1280x720_regs,
1778 		},
1779 		.link_freq_index = OV5670_LINK_FREQ_420MHZ_INDEX,
1780 	},
1781 	{
1782 		.width = 640,
1783 		.height = 360,
1784 		.vts = OV5670_VTS_30FPS,
1785 		.reg_list = {
1786 			.num_of_regs = ARRAY_SIZE(mode_640x360_regs),
1787 			.regs = mode_640x360_regs,
1788 		},
1789 		.link_freq_index = OV5670_LINK_FREQ_420MHZ_INDEX,
1790 	}
1791 };
1792 
1793 struct ov5670 {
1794 	struct v4l2_subdev sd;
1795 	struct media_pad pad;
1796 
1797 	struct v4l2_ctrl_handler ctrl_handler;
1798 	/* V4L2 Controls */
1799 	struct v4l2_ctrl *link_freq;
1800 	struct v4l2_ctrl *pixel_rate;
1801 	struct v4l2_ctrl *vblank;
1802 	struct v4l2_ctrl *hblank;
1803 	struct v4l2_ctrl *exposure;
1804 
1805 	/* Current mode */
1806 	const struct ov5670_mode *cur_mode;
1807 
1808 	/* To serialize asynchronus callbacks */
1809 	struct mutex mutex;
1810 
1811 	/* Streaming on/off */
1812 	bool streaming;
1813 };
1814 
1815 #define to_ov5670(_sd)	container_of(_sd, struct ov5670, sd)
1816 
1817 /* Read registers up to 4 at a time */
1818 static int ov5670_read_reg(struct ov5670 *ov5670, u16 reg, unsigned int len,
1819 			   u32 *val)
1820 {
1821 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1822 	struct i2c_msg msgs[2];
1823 	u8 *data_be_p;
1824 	u32 data_be = 0;
1825 	u16 reg_addr_be = cpu_to_be16(reg);
1826 	int ret;
1827 
1828 	if (len > 4)
1829 		return -EINVAL;
1830 
1831 	data_be_p = (u8 *)&data_be;
1832 	/* Write register address */
1833 	msgs[0].addr = client->addr;
1834 	msgs[0].flags = 0;
1835 	msgs[0].len = 2;
1836 	msgs[0].buf = (u8 *)&reg_addr_be;
1837 
1838 	/* Read data from register */
1839 	msgs[1].addr = client->addr;
1840 	msgs[1].flags = I2C_M_RD;
1841 	msgs[1].len = len;
1842 	msgs[1].buf = &data_be_p[4 - len];
1843 
1844 	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
1845 	if (ret != ARRAY_SIZE(msgs))
1846 		return -EIO;
1847 
1848 	*val = be32_to_cpu(data_be);
1849 
1850 	return 0;
1851 }
1852 
1853 /* Write registers up to 4 at a time */
1854 static int ov5670_write_reg(struct ov5670 *ov5670, u16 reg, unsigned int len,
1855 			    u32 val)
1856 {
1857 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1858 	int buf_i;
1859 	int val_i;
1860 	u8 buf[6];
1861 	u8 *val_p;
1862 
1863 	if (len > 4)
1864 		return -EINVAL;
1865 
1866 	buf[0] = reg >> 8;
1867 	buf[1] = reg & 0xff;
1868 
1869 	val = cpu_to_be32(val);
1870 	val_p = (u8 *)&val;
1871 	buf_i = 2;
1872 	val_i = 4 - len;
1873 
1874 	while (val_i < 4)
1875 		buf[buf_i++] = val_p[val_i++];
1876 
1877 	if (i2c_master_send(client, buf, len + 2) != len + 2)
1878 		return -EIO;
1879 
1880 	return 0;
1881 }
1882 
1883 /* Write a list of registers */
1884 static int ov5670_write_regs(struct ov5670 *ov5670,
1885 			     const struct ov5670_reg *regs, unsigned int len)
1886 {
1887 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1888 	unsigned int i;
1889 	int ret;
1890 
1891 	for (i = 0; i < len; i++) {
1892 		ret = ov5670_write_reg(ov5670, regs[i].address, 1, regs[i].val);
1893 		if (ret) {
1894 			dev_err_ratelimited(
1895 				&client->dev,
1896 				"Failed to write reg 0x%4.4x. error = %d\n",
1897 				regs[i].address, ret);
1898 
1899 			return ret;
1900 		}
1901 	}
1902 
1903 	return 0;
1904 }
1905 
1906 static int ov5670_write_reg_list(struct ov5670 *ov5670,
1907 				 const struct ov5670_reg_list *r_list)
1908 {
1909 	return ov5670_write_regs(ov5670, r_list->regs, r_list->num_of_regs);
1910 }
1911 
1912 /* Open sub-device */
1913 static int ov5670_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1914 {
1915 	struct ov5670 *ov5670 = to_ov5670(sd);
1916 	struct v4l2_mbus_framefmt *try_fmt =
1917 				v4l2_subdev_get_try_format(sd, fh->pad, 0);
1918 
1919 	mutex_lock(&ov5670->mutex);
1920 
1921 	/* Initialize try_fmt */
1922 	try_fmt->width = ov5670->cur_mode->width;
1923 	try_fmt->height = ov5670->cur_mode->height;
1924 	try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1925 	try_fmt->field = V4L2_FIELD_NONE;
1926 
1927 	/* No crop or compose */
1928 	mutex_unlock(&ov5670->mutex);
1929 
1930 	return 0;
1931 }
1932 
1933 static int ov5670_update_digital_gain(struct ov5670 *ov5670, u32 d_gain)
1934 {
1935 	int ret;
1936 
1937 	ret = ov5670_write_reg(ov5670, OV5670_REG_R_DGTL_GAIN,
1938 			       OV5670_REG_VALUE_16BIT, d_gain);
1939 	if (ret)
1940 		return ret;
1941 
1942 	ret = ov5670_write_reg(ov5670, OV5670_REG_G_DGTL_GAIN,
1943 			       OV5670_REG_VALUE_16BIT, d_gain);
1944 	if (ret)
1945 		return ret;
1946 
1947 	return ov5670_write_reg(ov5670, OV5670_REG_B_DGTL_GAIN,
1948 				OV5670_REG_VALUE_16BIT, d_gain);
1949 }
1950 
1951 static int ov5670_enable_test_pattern(struct ov5670 *ov5670, u32 pattern)
1952 {
1953 	u32 val;
1954 	int ret;
1955 
1956 	/* Set the bayer order that we support */
1957 	ret = ov5670_write_reg(ov5670, OV5670_REG_TEST_PATTERN_CTRL,
1958 			       OV5670_REG_VALUE_08BIT, 0);
1959 	if (ret)
1960 		return ret;
1961 
1962 	ret = ov5670_read_reg(ov5670, OV5670_REG_TEST_PATTERN,
1963 			      OV5670_REG_VALUE_08BIT, &val);
1964 	if (ret)
1965 		return ret;
1966 
1967 	if (pattern)
1968 		val |= OV5670_TEST_PATTERN_ENABLE;
1969 	else
1970 		val &= ~OV5670_TEST_PATTERN_ENABLE;
1971 
1972 	return ov5670_write_reg(ov5670, OV5670_REG_TEST_PATTERN,
1973 				OV5670_REG_VALUE_08BIT, val);
1974 }
1975 
1976 /* Initialize control handlers */
1977 static int ov5670_set_ctrl(struct v4l2_ctrl *ctrl)
1978 {
1979 	struct ov5670 *ov5670 = container_of(ctrl->handler,
1980 					     struct ov5670, ctrl_handler);
1981 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1982 	s64 max;
1983 	int ret = 0;
1984 
1985 	/* Propagate change of current control to all related controls */
1986 	switch (ctrl->id) {
1987 	case V4L2_CID_VBLANK:
1988 		/* Update max exposure while meeting expected vblanking */
1989 		max = ov5670->cur_mode->height + ctrl->val - 8;
1990 		__v4l2_ctrl_modify_range(ov5670->exposure,
1991 					 ov5670->exposure->minimum, max,
1992 					 ov5670->exposure->step, max);
1993 		break;
1994 	}
1995 
1996 	/* V4L2 controls values will be applied only when power is already up */
1997 	if (pm_runtime_get_if_in_use(&client->dev) <= 0)
1998 		return 0;
1999 
2000 	switch (ctrl->id) {
2001 	case V4L2_CID_ANALOGUE_GAIN:
2002 		ret = ov5670_write_reg(ov5670, OV5670_REG_ANALOG_GAIN,
2003 				       OV5670_REG_VALUE_16BIT, ctrl->val);
2004 		break;
2005 	case V4L2_CID_DIGITAL_GAIN:
2006 		ret = ov5670_update_digital_gain(ov5670, ctrl->val);
2007 		break;
2008 	case V4L2_CID_EXPOSURE:
2009 		/* 4 least significant bits of expsoure are fractional part */
2010 		ret = ov5670_write_reg(ov5670, OV5670_REG_EXPOSURE,
2011 				       OV5670_REG_VALUE_24BIT, ctrl->val << 4);
2012 		break;
2013 	case V4L2_CID_VBLANK:
2014 		/* Update VTS that meets expected vertical blanking */
2015 		ret = ov5670_write_reg(ov5670, OV5670_REG_VTS,
2016 				       OV5670_REG_VALUE_16BIT,
2017 				       ov5670->cur_mode->height + ctrl->val);
2018 		break;
2019 	case V4L2_CID_HBLANK:
2020 		/* Update HTS that meets expected horizontal blanking */
2021 		ret = ov5670_write_reg(ov5670, OV5670_REG_HTS,
2022 				       OV5670_REG_VALUE_16BIT,
2023 				       (ov5670->cur_mode->width +
2024 					ctrl->val) / 2);
2025 		break;
2026 	case V4L2_CID_TEST_PATTERN:
2027 		ret = ov5670_enable_test_pattern(ov5670, ctrl->val);
2028 		break;
2029 	default:
2030 		dev_info(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
2031 			 __func__, ctrl->id, ctrl->val);
2032 		break;
2033 	}
2034 
2035 	pm_runtime_put(&client->dev);
2036 
2037 	return ret;
2038 }
2039 
2040 static const struct v4l2_ctrl_ops ov5670_ctrl_ops = {
2041 	.s_ctrl = ov5670_set_ctrl,
2042 };
2043 
2044 /* Initialize control handlers */
2045 static int ov5670_init_controls(struct ov5670 *ov5670)
2046 {
2047 	struct v4l2_ctrl_handler *ctrl_hdlr;
2048 	s64 vblank_max;
2049 	s64 vblank_def;
2050 	s64 exposure_max;
2051 	int ret;
2052 
2053 	ctrl_hdlr = &ov5670->ctrl_handler;
2054 	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
2055 	if (ret)
2056 		return ret;
2057 
2058 	ctrl_hdlr->lock = &ov5670->mutex;
2059 	ov5670->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
2060 						   &ov5670_ctrl_ops,
2061 						   V4L2_CID_LINK_FREQ,
2062 						   0, 0, link_freq_menu_items);
2063 	if (ov5670->link_freq)
2064 		ov5670->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2065 
2066 	/* By default, V4L2_CID_PIXEL_RATE is read only */
2067 	ov5670->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2068 					       V4L2_CID_PIXEL_RATE, 0,
2069 					       link_freq_configs[0].pixel_rate,
2070 					       1,
2071 					       link_freq_configs[0].pixel_rate);
2072 
2073 	vblank_max = OV5670_VTS_MAX - ov5670->cur_mode->height;
2074 	vblank_def = ov5670->cur_mode->vts - ov5670->cur_mode->height;
2075 	ov5670->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2076 					   V4L2_CID_VBLANK, OV5670_VBLANK_MIN,
2077 					   vblank_max, 1, vblank_def);
2078 
2079 	ov5670->hblank = v4l2_ctrl_new_std(
2080 				ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_HBLANK,
2081 				OV5670_DEF_PPL - ov5670->cur_mode->width,
2082 				OV5670_DEF_PPL - ov5670->cur_mode->width, 1,
2083 				OV5670_DEF_PPL - ov5670->cur_mode->width);
2084 
2085 	/* Get min, max, step, default from sensor */
2086 	v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
2087 			  ANALOG_GAIN_MIN, ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
2088 			  ANALOG_GAIN_DEFAULT);
2089 
2090 	/* Digital gain */
2091 	v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
2092 			  OV5670_DGTL_GAIN_MIN, OV5670_DGTL_GAIN_MAX,
2093 			  OV5670_DGTL_GAIN_STEP, OV5670_DGTL_GAIN_DEFAULT);
2094 
2095 	/* Get min, max, step, default from sensor */
2096 	exposure_max = ov5670->cur_mode->vts - 8;
2097 	ov5670->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2098 					     V4L2_CID_EXPOSURE,
2099 					     OV5670_EXPOSURE_MIN,
2100 					     exposure_max, OV5670_EXPOSURE_STEP,
2101 					     exposure_max);
2102 
2103 	v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov5670_ctrl_ops,
2104 				     V4L2_CID_TEST_PATTERN,
2105 				     ARRAY_SIZE(ov5670_test_pattern_menu) - 1,
2106 				     0, 0, ov5670_test_pattern_menu);
2107 
2108 	if (ctrl_hdlr->error) {
2109 		ret = ctrl_hdlr->error;
2110 		goto error;
2111 	}
2112 
2113 	ov5670->sd.ctrl_handler = ctrl_hdlr;
2114 
2115 	return 0;
2116 
2117 error:
2118 	v4l2_ctrl_handler_free(ctrl_hdlr);
2119 
2120 	return ret;
2121 }
2122 
2123 static int ov5670_enum_mbus_code(struct v4l2_subdev *sd,
2124 				 struct v4l2_subdev_pad_config *cfg,
2125 				 struct v4l2_subdev_mbus_code_enum *code)
2126 {
2127 	/* Only one bayer order GRBG is supported */
2128 	if (code->index > 0)
2129 		return -EINVAL;
2130 
2131 	code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
2132 
2133 	return 0;
2134 }
2135 
2136 static int ov5670_enum_frame_size(struct v4l2_subdev *sd,
2137 				  struct v4l2_subdev_pad_config *cfg,
2138 				  struct v4l2_subdev_frame_size_enum *fse)
2139 {
2140 	if (fse->index >= ARRAY_SIZE(supported_modes))
2141 		return -EINVAL;
2142 
2143 	if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
2144 		return -EINVAL;
2145 
2146 	fse->min_width = supported_modes[fse->index].width;
2147 	fse->max_width = fse->min_width;
2148 	fse->min_height = supported_modes[fse->index].height;
2149 	fse->max_height = fse->min_height;
2150 
2151 	return 0;
2152 }
2153 
2154 /* Calculate resolution distance */
2155 static int ov5670_get_reso_dist(const struct ov5670_mode *mode,
2156 				struct v4l2_mbus_framefmt *framefmt)
2157 {
2158 	return abs(mode->width - framefmt->width) +
2159 	       abs(mode->height - framefmt->height);
2160 }
2161 
2162 /* Find the closest supported resolution to the requested resolution */
2163 static const struct ov5670_mode *ov5670_find_best_fit(
2164 						struct ov5670 *ov5670,
2165 						struct v4l2_subdev_format *fmt)
2166 {
2167 	struct v4l2_mbus_framefmt *framefmt = &fmt->format;
2168 	int dist;
2169 	int cur_best_fit = 0;
2170 	int cur_best_fit_dist = -1;
2171 	int i;
2172 
2173 	for (i = 0; i < ARRAY_SIZE(supported_modes); i++) {
2174 		dist = ov5670_get_reso_dist(&supported_modes[i], framefmt);
2175 		if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) {
2176 			cur_best_fit_dist = dist;
2177 			cur_best_fit = i;
2178 		}
2179 	}
2180 
2181 	return &supported_modes[cur_best_fit];
2182 }
2183 
2184 static void ov5670_update_pad_format(const struct ov5670_mode *mode,
2185 				     struct v4l2_subdev_format *fmt)
2186 {
2187 	fmt->format.width = mode->width;
2188 	fmt->format.height = mode->height;
2189 	fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2190 	fmt->format.field = V4L2_FIELD_NONE;
2191 }
2192 
2193 static int ov5670_do_get_pad_format(struct ov5670 *ov5670,
2194 				    struct v4l2_subdev_pad_config *cfg,
2195 				    struct v4l2_subdev_format *fmt)
2196 {
2197 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
2198 		fmt->format = *v4l2_subdev_get_try_format(&ov5670->sd, cfg,
2199 							  fmt->pad);
2200 	else
2201 		ov5670_update_pad_format(ov5670->cur_mode, fmt);
2202 
2203 	return 0;
2204 }
2205 
2206 static int ov5670_get_pad_format(struct v4l2_subdev *sd,
2207 				 struct v4l2_subdev_pad_config *cfg,
2208 				 struct v4l2_subdev_format *fmt)
2209 {
2210 	struct ov5670 *ov5670 = to_ov5670(sd);
2211 	int ret;
2212 
2213 	mutex_lock(&ov5670->mutex);
2214 	ret = ov5670_do_get_pad_format(ov5670, cfg, fmt);
2215 	mutex_unlock(&ov5670->mutex);
2216 
2217 	return ret;
2218 }
2219 
2220 static int ov5670_set_pad_format(struct v4l2_subdev *sd,
2221 				 struct v4l2_subdev_pad_config *cfg,
2222 				 struct v4l2_subdev_format *fmt)
2223 {
2224 	struct ov5670 *ov5670 = to_ov5670(sd);
2225 	const struct ov5670_mode *mode;
2226 	s32 vblank_def;
2227 	s32 h_blank;
2228 
2229 	mutex_lock(&ov5670->mutex);
2230 
2231 	fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2232 
2233 	mode = ov5670_find_best_fit(ov5670, fmt);
2234 	ov5670_update_pad_format(mode, fmt);
2235 	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
2236 		*v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
2237 	} else {
2238 		ov5670->cur_mode = mode;
2239 		__v4l2_ctrl_s_ctrl(ov5670->link_freq, mode->link_freq_index);
2240 		__v4l2_ctrl_s_ctrl_int64(
2241 			ov5670->pixel_rate,
2242 			link_freq_configs[mode->link_freq_index].pixel_rate);
2243 		/* Update limits and set FPS to default */
2244 		vblank_def = ov5670->cur_mode->vts - ov5670->cur_mode->height;
2245 		__v4l2_ctrl_modify_range(
2246 			ov5670->vblank, OV5670_VBLANK_MIN,
2247 			OV5670_VTS_MAX - ov5670->cur_mode->height, 1,
2248 			vblank_def);
2249 		__v4l2_ctrl_s_ctrl(ov5670->vblank, vblank_def);
2250 		h_blank = OV5670_DEF_PPL - ov5670->cur_mode->width;
2251 		__v4l2_ctrl_modify_range(ov5670->hblank, h_blank, h_blank, 1,
2252 					 h_blank);
2253 	}
2254 
2255 	mutex_unlock(&ov5670->mutex);
2256 
2257 	return 0;
2258 }
2259 
2260 static int ov5670_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
2261 {
2262 	*frames = OV5670_NUM_OF_SKIP_FRAMES;
2263 
2264 	return 0;
2265 }
2266 
2267 /* Prepare streaming by writing default values and customized values */
2268 static int ov5670_start_streaming(struct ov5670 *ov5670)
2269 {
2270 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2271 	const struct ov5670_reg_list *reg_list;
2272 	int link_freq_index;
2273 	int ret;
2274 
2275 	/* Get out of from software reset */
2276 	ret = ov5670_write_reg(ov5670, OV5670_REG_SOFTWARE_RST,
2277 			       OV5670_REG_VALUE_08BIT, OV5670_SOFTWARE_RST);
2278 	if (ret) {
2279 		dev_err(&client->dev, "%s failed to set powerup registers\n",
2280 			__func__);
2281 		return ret;
2282 	}
2283 
2284 	/* Setup PLL */
2285 	link_freq_index = ov5670->cur_mode->link_freq_index;
2286 	reg_list = &link_freq_configs[link_freq_index].reg_list;
2287 	ret = ov5670_write_reg_list(ov5670, reg_list);
2288 	if (ret) {
2289 		dev_err(&client->dev, "%s failed to set plls\n", __func__);
2290 		return ret;
2291 	}
2292 
2293 	/* Apply default values of current mode */
2294 	reg_list = &ov5670->cur_mode->reg_list;
2295 	ret = ov5670_write_reg_list(ov5670, reg_list);
2296 	if (ret) {
2297 		dev_err(&client->dev, "%s failed to set mode\n", __func__);
2298 		return ret;
2299 	}
2300 
2301 	ret = __v4l2_ctrl_handler_setup(ov5670->sd.ctrl_handler);
2302 	if (ret)
2303 		return ret;
2304 
2305 	/* Write stream on list */
2306 	ret = ov5670_write_reg(ov5670, OV5670_REG_MODE_SELECT,
2307 			       OV5670_REG_VALUE_08BIT, OV5670_MODE_STREAMING);
2308 	if (ret) {
2309 		dev_err(&client->dev, "%s failed to set stream\n", __func__);
2310 		return ret;
2311 	}
2312 
2313 	ov5670->streaming = true;
2314 
2315 	return 0;
2316 }
2317 
2318 static int ov5670_stop_streaming(struct ov5670 *ov5670)
2319 {
2320 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2321 	int ret;
2322 
2323 	ret = ov5670_write_reg(ov5670, OV5670_REG_MODE_SELECT,
2324 			       OV5670_REG_VALUE_08BIT, OV5670_MODE_STANDBY);
2325 	if (ret)
2326 		dev_err(&client->dev, "%s failed to set stream\n", __func__);
2327 
2328 	ov5670->streaming = false;
2329 
2330 	/* Return success even if it was an error, as there is nothing the
2331 	 * caller can do about it.
2332 	 */
2333 	return 0;
2334 }
2335 
2336 static int ov5670_set_stream(struct v4l2_subdev *sd, int enable)
2337 {
2338 	struct ov5670 *ov5670 = to_ov5670(sd);
2339 	struct i2c_client *client = v4l2_get_subdevdata(sd);
2340 	int ret = 0;
2341 
2342 	mutex_lock(&ov5670->mutex);
2343 	if (ov5670->streaming == enable)
2344 		goto unlock_and_return;
2345 
2346 	if (enable) {
2347 		ret = pm_runtime_get_sync(&client->dev);
2348 		if (ret < 0) {
2349 			pm_runtime_put_noidle(&client->dev);
2350 			goto unlock_and_return;
2351 		}
2352 
2353 		ret = ov5670_start_streaming(ov5670);
2354 		if (ret)
2355 			goto error;
2356 	} else {
2357 		ret = ov5670_stop_streaming(ov5670);
2358 		pm_runtime_put(&client->dev);
2359 	}
2360 	goto unlock_and_return;
2361 
2362 error:
2363 	pm_runtime_put(&client->dev);
2364 
2365 unlock_and_return:
2366 	mutex_unlock(&ov5670->mutex);
2367 
2368 	return ret;
2369 }
2370 
2371 static int __maybe_unused ov5670_suspend(struct device *dev)
2372 {
2373 	struct i2c_client *client = to_i2c_client(dev);
2374 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
2375 	struct ov5670 *ov5670 = to_ov5670(sd);
2376 
2377 	if (ov5670->streaming)
2378 		ov5670_stop_streaming(ov5670);
2379 
2380 	return 0;
2381 }
2382 
2383 static int __maybe_unused ov5670_resume(struct device *dev)
2384 {
2385 	struct i2c_client *client = to_i2c_client(dev);
2386 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
2387 	struct ov5670 *ov5670 = to_ov5670(sd);
2388 	int ret;
2389 
2390 	if (ov5670->streaming) {
2391 		ret = ov5670_start_streaming(ov5670);
2392 		if (ret) {
2393 			ov5670_stop_streaming(ov5670);
2394 			return ret;
2395 		}
2396 	}
2397 
2398 	return 0;
2399 }
2400 
2401 /* Verify chip ID */
2402 static int ov5670_identify_module(struct ov5670 *ov5670)
2403 {
2404 	struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2405 	int ret;
2406 	u32 val;
2407 
2408 	ret = ov5670_read_reg(ov5670, OV5670_REG_CHIP_ID,
2409 			      OV5670_REG_VALUE_24BIT, &val);
2410 	if (ret)
2411 		return ret;
2412 
2413 	if (val != OV5670_CHIP_ID) {
2414 		dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
2415 			OV5670_CHIP_ID, val);
2416 		return -ENXIO;
2417 	}
2418 
2419 	return 0;
2420 }
2421 
2422 static const struct v4l2_subdev_video_ops ov5670_video_ops = {
2423 	.s_stream = ov5670_set_stream,
2424 };
2425 
2426 static const struct v4l2_subdev_pad_ops ov5670_pad_ops = {
2427 	.enum_mbus_code = ov5670_enum_mbus_code,
2428 	.get_fmt = ov5670_get_pad_format,
2429 	.set_fmt = ov5670_set_pad_format,
2430 	.enum_frame_size = ov5670_enum_frame_size,
2431 };
2432 
2433 static const struct v4l2_subdev_sensor_ops ov5670_sensor_ops = {
2434 	.g_skip_frames = ov5670_get_skip_frames,
2435 };
2436 
2437 static const struct v4l2_subdev_ops ov5670_subdev_ops = {
2438 	.video = &ov5670_video_ops,
2439 	.pad = &ov5670_pad_ops,
2440 	.sensor = &ov5670_sensor_ops,
2441 };
2442 
2443 static const struct media_entity_operations ov5670_subdev_entity_ops = {
2444 	.link_validate = v4l2_subdev_link_validate,
2445 };
2446 
2447 static const struct v4l2_subdev_internal_ops ov5670_internal_ops = {
2448 	.open = ov5670_open,
2449 };
2450 
2451 static int ov5670_probe(struct i2c_client *client)
2452 {
2453 	struct ov5670 *ov5670;
2454 	const char *err_msg;
2455 	u32 input_clk = 0;
2456 	int ret;
2457 
2458 	device_property_read_u32(&client->dev, "clock-frequency", &input_clk);
2459 	if (input_clk != 19200000)
2460 		return -EINVAL;
2461 
2462 	ov5670 = devm_kzalloc(&client->dev, sizeof(*ov5670), GFP_KERNEL);
2463 	if (!ov5670) {
2464 		ret = -ENOMEM;
2465 		err_msg = "devm_kzalloc() error";
2466 		goto error_print;
2467 	}
2468 
2469 	/* Initialize subdev */
2470 	v4l2_i2c_subdev_init(&ov5670->sd, client, &ov5670_subdev_ops);
2471 
2472 	/* Check module identity */
2473 	ret = ov5670_identify_module(ov5670);
2474 	if (ret) {
2475 		err_msg = "ov5670_identify_module() error";
2476 		goto error_print;
2477 	}
2478 
2479 	mutex_init(&ov5670->mutex);
2480 
2481 	/* Set default mode to max resolution */
2482 	ov5670->cur_mode = &supported_modes[0];
2483 
2484 	ret = ov5670_init_controls(ov5670);
2485 	if (ret) {
2486 		err_msg = "ov5670_init_controls() error";
2487 		goto error_mutex_destroy;
2488 	}
2489 
2490 	ov5670->sd.internal_ops = &ov5670_internal_ops;
2491 	ov5670->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
2492 	ov5670->sd.entity.ops = &ov5670_subdev_entity_ops;
2493 	ov5670->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
2494 
2495 	/* Source pad initialization */
2496 	ov5670->pad.flags = MEDIA_PAD_FL_SOURCE;
2497 	ret = media_entity_pads_init(&ov5670->sd.entity, 1, &ov5670->pad);
2498 	if (ret) {
2499 		err_msg = "media_entity_pads_init() error";
2500 		goto error_handler_free;
2501 	}
2502 
2503 	/* Async register for subdev */
2504 	ret = v4l2_async_register_subdev(&ov5670->sd);
2505 	if (ret < 0) {
2506 		err_msg = "v4l2_async_register_subdev() error";
2507 		goto error_entity_cleanup;
2508 	}
2509 
2510 	ov5670->streaming = false;
2511 
2512 	/*
2513 	 * Device is already turned on by i2c-core with ACPI domain PM.
2514 	 * Enable runtime PM and turn off the device.
2515 	 */
2516 	pm_runtime_get_noresume(&client->dev);
2517 	pm_runtime_set_active(&client->dev);
2518 	pm_runtime_enable(&client->dev);
2519 	pm_runtime_put(&client->dev);
2520 
2521 	return 0;
2522 
2523 error_entity_cleanup:
2524 	media_entity_cleanup(&ov5670->sd.entity);
2525 
2526 error_handler_free:
2527 	v4l2_ctrl_handler_free(ov5670->sd.ctrl_handler);
2528 
2529 error_mutex_destroy:
2530 	mutex_destroy(&ov5670->mutex);
2531 
2532 error_print:
2533 	dev_err(&client->dev, "%s: %s %d\n", __func__, err_msg, ret);
2534 
2535 	return ret;
2536 }
2537 
2538 static int ov5670_remove(struct i2c_client *client)
2539 {
2540 	struct v4l2_subdev *sd = i2c_get_clientdata(client);
2541 	struct ov5670 *ov5670 = to_ov5670(sd);
2542 
2543 	v4l2_async_unregister_subdev(sd);
2544 	media_entity_cleanup(&sd->entity);
2545 	v4l2_ctrl_handler_free(sd->ctrl_handler);
2546 	mutex_destroy(&ov5670->mutex);
2547 
2548 	/*
2549 	 * Disable runtime PM but keep the device turned on.
2550 	 * i2c-core with ACPI domain PM will turn off the device.
2551 	 */
2552 	pm_runtime_get_sync(&client->dev);
2553 	pm_runtime_disable(&client->dev);
2554 	pm_runtime_set_suspended(&client->dev);
2555 	pm_runtime_put_noidle(&client->dev);
2556 
2557 	return 0;
2558 }
2559 
2560 static const struct dev_pm_ops ov5670_pm_ops = {
2561 	SET_SYSTEM_SLEEP_PM_OPS(ov5670_suspend, ov5670_resume)
2562 };
2563 
2564 #ifdef CONFIG_ACPI
2565 static const struct acpi_device_id ov5670_acpi_ids[] = {
2566 	{"INT3479"},
2567 	{ /* sentinel */ }
2568 };
2569 
2570 MODULE_DEVICE_TABLE(acpi, ov5670_acpi_ids);
2571 #endif
2572 
2573 static struct i2c_driver ov5670_i2c_driver = {
2574 	.driver = {
2575 		.name = "ov5670",
2576 		.pm = &ov5670_pm_ops,
2577 		.acpi_match_table = ACPI_PTR(ov5670_acpi_ids),
2578 	},
2579 	.probe_new = ov5670_probe,
2580 	.remove = ov5670_remove,
2581 };
2582 
2583 module_i2c_driver(ov5670_i2c_driver);
2584 
2585 MODULE_AUTHOR("Rapolu, Chiranjeevi <chiranjeevi.rapolu@intel.com>");
2586 MODULE_AUTHOR("Yang, Hyungwoo <hyungwoo.yang@intel.com>");
2587 MODULE_DESCRIPTION("Omnivision ov5670 sensor driver");
2588 MODULE_LICENSE("GPL v2");
2589