]> git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - drivers/media/i2c/imx258.c
projects / mirror_ubuntu-jammy-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge tag 'ovl-update-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
[mirror_ubuntu-jammy-kernel.git] / drivers / media / i2c / imx258.c
1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (C) 2018 Intel Corporation
3
4 #include <linux/acpi.h>
5 #include <linux/clk.h>
6 #include <linux/delay.h>
7 #include <linux/i2c.h>
8 #include <linux/module.h>
9 #include <linux/pm_runtime.h>
10 #include <media/v4l2-ctrls.h>
11 #include <media/v4l2-device.h>
12 #include <asm/unaligned.h>
13
14 #define IMX258_REG_VALUE_08BIT 1
15 #define IMX258_REG_VALUE_16BIT 2
16
17 #define IMX258_REG_MODE_SELECT 0x0100
18 #define IMX258_MODE_STANDBY 0x00
19 #define IMX258_MODE_STREAMING 0x01
20
21 /* Chip ID */
22 #define IMX258_REG_CHIP_ID 0x0016
23 #define IMX258_CHIP_ID 0x0258
24
25 /* V_TIMING internal */
26 #define IMX258_VTS_30FPS 0x0c50
27 #define IMX258_VTS_30FPS_2K 0x0638
28 #define IMX258_VTS_30FPS_VGA 0x034c
29 #define IMX258_VTS_MAX 0xffff
30
31 /*Frame Length Line*/
32 #define IMX258_FLL_MIN 0x08a6
33 #define IMX258_FLL_MAX 0xffff
34 #define IMX258_FLL_STEP 1
35 #define IMX258_FLL_DEFAULT 0x0c98
36
37 /* HBLANK control - read only */
38 #define IMX258_PPL_DEFAULT 5352
39
40 /* Exposure control */
41 #define IMX258_REG_EXPOSURE 0x0202
42 #define IMX258_EXPOSURE_MIN 4
43 #define IMX258_EXPOSURE_STEP 1
44 #define IMX258_EXPOSURE_DEFAULT 0x640
45 #define IMX258_EXPOSURE_MAX 65535
46
47 /* Analog gain control */
48 #define IMX258_REG_ANALOG_GAIN 0x0204
49 #define IMX258_ANA_GAIN_MIN 0
50 #define IMX258_ANA_GAIN_MAX 480
51 #define IMX258_ANA_GAIN_STEP 1
52 #define IMX258_ANA_GAIN_DEFAULT 0x0
53
54 /* Digital gain control */
55 #define IMX258_REG_GR_DIGITAL_GAIN 0x020e
56 #define IMX258_REG_R_DIGITAL_GAIN 0x0210
57 #define IMX258_REG_B_DIGITAL_GAIN 0x0212
58 #define IMX258_REG_GB_DIGITAL_GAIN 0x0214
59 #define IMX258_DGTL_GAIN_MIN 0
60 #define IMX258_DGTL_GAIN_MAX 4096 /* Max = 0xFFF */
61 #define IMX258_DGTL_GAIN_DEFAULT 1024
62 #define IMX258_DGTL_GAIN_STEP 1
63
64 /* HDR control */
65 #define IMX258_REG_HDR 0x0220
66 #define IMX258_HDR_ON BIT(0)
67 #define IMX258_REG_HDR_RATIO 0x0222
68 #define IMX258_HDR_RATIO_MIN 0
69 #define IMX258_HDR_RATIO_MAX 5
70 #define IMX258_HDR_RATIO_STEP 1
71 #define IMX258_HDR_RATIO_DEFAULT 0x0
72
73 /* Test Pattern Control */
74 #define IMX258_REG_TEST_PATTERN 0x0600
75
76 /* Orientation */
77 #define REG_MIRROR_FLIP_CONTROL 0x0101
78 #define REG_CONFIG_MIRROR_FLIP 0x03
79 #define REG_CONFIG_FLIP_TEST_PATTERN 0x02
80
81 /* Input clock frequency in Hz */
82 #define IMX258_INPUT_CLOCK_FREQ 19200000
83
84 struct imx258_reg {
85 u16 address;
86 u8 val;
87 };
88
89 struct imx258_reg_list {
90 u32 num_of_regs;
91 const struct imx258_reg *regs;
92 };
93
94 /* Link frequency config */
95 struct imx258_link_freq_config {
96 u32 pixels_per_line;
97
98 /* PLL registers for this link frequency */
99 struct imx258_reg_list reg_list;
100 };
101
102 /* Mode : resolution and related config&values */
103 struct imx258_mode {
104 /* Frame width */
105 u32 width;
106 /* Frame height */
107 u32 height;
108
109 /* V-timing */
110 u32 vts_def;
111 u32 vts_min;
112
113 /* Index of Link frequency config to be used */
114 u32 link_freq_index;
115 /* Default register values */
116 struct imx258_reg_list reg_list;
117 };
118
119 /* 4208x3118 needs 1267Mbps/lane, 4 lanes */
120 static const struct imx258_reg mipi_data_rate_1267mbps[] = {
121 { 0x0301, 0x05 },
122 { 0x0303, 0x02 },
123 { 0x0305, 0x03 },
124 { 0x0306, 0x00 },
125 { 0x0307, 0xC6 },
126 { 0x0309, 0x0A },
127 { 0x030B, 0x01 },
128 { 0x030D, 0x02 },
129 { 0x030E, 0x00 },
130 { 0x030F, 0xD8 },
131 { 0x0310, 0x00 },
132 { 0x0820, 0x13 },
133 { 0x0821, 0x4C },
134 { 0x0822, 0xCC },
135 { 0x0823, 0xCC },
136 };
137
138 static const struct imx258_reg mipi_data_rate_640mbps[] = {
139 { 0x0301, 0x05 },
140 { 0x0303, 0x02 },
141 { 0x0305, 0x03 },
142 { 0x0306, 0x00 },
143 { 0x0307, 0x64 },
144 { 0x0309, 0x0A },
145 { 0x030B, 0x01 },
146 { 0x030D, 0x02 },
147 { 0x030E, 0x00 },
148 { 0x030F, 0xD8 },
149 { 0x0310, 0x00 },
150 { 0x0820, 0x0A },
151 { 0x0821, 0x00 },
152 { 0x0822, 0x00 },
153 { 0x0823, 0x00 },
154 };
155
156 static const struct imx258_reg mode_4208x3118_regs[] = {
157 { 0x0136, 0x13 },
158 { 0x0137, 0x33 },
159 { 0x3051, 0x00 },
160 { 0x3052, 0x00 },
161 { 0x4E21, 0x14 },
162 { 0x6B11, 0xCF },
163 { 0x7FF0, 0x08 },
164 { 0x7FF1, 0x0F },
165 { 0x7FF2, 0x08 },
166 { 0x7FF3, 0x1B },
167 { 0x7FF4, 0x23 },
168 { 0x7FF5, 0x60 },
169 { 0x7FF6, 0x00 },
170 { 0x7FF7, 0x01 },
171 { 0x7FF8, 0x00 },
172 { 0x7FF9, 0x78 },
173 { 0x7FFA, 0x00 },
174 { 0x7FFB, 0x00 },
175 { 0x7FFC, 0x00 },
176 { 0x7FFD, 0x00 },
177 { 0x7FFE, 0x00 },
178 { 0x7FFF, 0x03 },
179 { 0x7F76, 0x03 },
180 { 0x7F77, 0xFE },
181 { 0x7FA8, 0x03 },
182 { 0x7FA9, 0xFE },
183 { 0x7B24, 0x81 },
184 { 0x7B25, 0x00 },
185 { 0x6564, 0x07 },
186 { 0x6B0D, 0x41 },
187 { 0x653D, 0x04 },
188 { 0x6B05, 0x8C },
189 { 0x6B06, 0xF9 },
190 { 0x6B08, 0x65 },
191 { 0x6B09, 0xFC },
192 { 0x6B0A, 0xCF },
193 { 0x6B0B, 0xD2 },
194 { 0x6700, 0x0E },
195 { 0x6707, 0x0E },
196 { 0x9104, 0x00 },
197 { 0x4648, 0x7F },
198 { 0x7420, 0x00 },
199 { 0x7421, 0x1C },
200 { 0x7422, 0x00 },
201 { 0x7423, 0xD7 },
202 { 0x5F04, 0x00 },
203 { 0x5F05, 0xED },
204 { 0x0112, 0x0A },
205 { 0x0113, 0x0A },
206 { 0x0114, 0x03 },
207 { 0x0342, 0x14 },
208 { 0x0343, 0xE8 },
209 { 0x0340, 0x0C },
210 { 0x0341, 0x50 },
211 { 0x0344, 0x00 },
212 { 0x0345, 0x00 },
213 { 0x0346, 0x00 },
214 { 0x0347, 0x00 },
215 { 0x0348, 0x10 },
216 { 0x0349, 0x6F },
217 { 0x034A, 0x0C },
218 { 0x034B, 0x2E },
219 { 0x0381, 0x01 },
220 { 0x0383, 0x01 },
221 { 0x0385, 0x01 },
222 { 0x0387, 0x01 },
223 { 0x0900, 0x00 },
224 { 0x0901, 0x11 },
225 { 0x0401, 0x00 },
226 { 0x0404, 0x00 },
227 { 0x0405, 0x10 },
228 { 0x0408, 0x00 },
229 { 0x0409, 0x00 },
230 { 0x040A, 0x00 },
231 { 0x040B, 0x00 },
232 { 0x040C, 0x10 },
233 { 0x040D, 0x70 },
234 { 0x040E, 0x0C },
235 { 0x040F, 0x30 },
236 { 0x3038, 0x00 },
237 { 0x303A, 0x00 },
238 { 0x303B, 0x10 },
239 { 0x300D, 0x00 },
240 { 0x034C, 0x10 },
241 { 0x034D, 0x70 },
242 { 0x034E, 0x0C },
243 { 0x034F, 0x30 },
244 { 0x0350, 0x01 },
245 { 0x0202, 0x0C },
246 { 0x0203, 0x46 },
247 { 0x0204, 0x00 },
248 { 0x0205, 0x00 },
249 { 0x020E, 0x01 },
250 { 0x020F, 0x00 },
251 { 0x0210, 0x01 },
252 { 0x0211, 0x00 },
253 { 0x0212, 0x01 },
254 { 0x0213, 0x00 },
255 { 0x0214, 0x01 },
256 { 0x0215, 0x00 },
257 { 0x7BCD, 0x00 },
258 { 0x94DC, 0x20 },
259 { 0x94DD, 0x20 },
260 { 0x94DE, 0x20 },
261 { 0x95DC, 0x20 },
262 { 0x95DD, 0x20 },
263 { 0x95DE, 0x20 },
264 { 0x7FB0, 0x00 },
265 { 0x9010, 0x3E },
266 { 0x9419, 0x50 },
267 { 0x941B, 0x50 },
268 { 0x9519, 0x50 },
269 { 0x951B, 0x50 },
270 { 0x3030, 0x00 },
271 { 0x3032, 0x00 },
272 { 0x0220, 0x00 },
273 };
274
275 static const struct imx258_reg mode_2104_1560_regs[] = {
276 { 0x0136, 0x13 },
277 { 0x0137, 0x33 },
278 { 0x3051, 0x00 },
279 { 0x3052, 0x00 },
280 { 0x4E21, 0x14 },
281 { 0x6B11, 0xCF },
282 { 0x7FF0, 0x08 },
283 { 0x7FF1, 0x0F },
284 { 0x7FF2, 0x08 },
285 { 0x7FF3, 0x1B },
286 { 0x7FF4, 0x23 },
287 { 0x7FF5, 0x60 },
288 { 0x7FF6, 0x00 },
289 { 0x7FF7, 0x01 },
290 { 0x7FF8, 0x00 },
291 { 0x7FF9, 0x78 },
292 { 0x7FFA, 0x00 },
293 { 0x7FFB, 0x00 },
294 { 0x7FFC, 0x00 },
295 { 0x7FFD, 0x00 },
296 { 0x7FFE, 0x00 },
297 { 0x7FFF, 0x03 },
298 { 0x7F76, 0x03 },
299 { 0x7F77, 0xFE },
300 { 0x7FA8, 0x03 },
301 { 0x7FA9, 0xFE },
302 { 0x7B24, 0x81 },
303 { 0x7B25, 0x00 },
304 { 0x6564, 0x07 },
305 { 0x6B0D, 0x41 },
306 { 0x653D, 0x04 },
307 { 0x6B05, 0x8C },
308 { 0x6B06, 0xF9 },
309 { 0x6B08, 0x65 },
310 { 0x6B09, 0xFC },
311 { 0x6B0A, 0xCF },
312 { 0x6B0B, 0xD2 },
313 { 0x6700, 0x0E },
314 { 0x6707, 0x0E },
315 { 0x9104, 0x00 },
316 { 0x4648, 0x7F },
317 { 0x7420, 0x00 },
318 { 0x7421, 0x1C },
319 { 0x7422, 0x00 },
320 { 0x7423, 0xD7 },
321 { 0x5F04, 0x00 },
322 { 0x5F05, 0xED },
323 { 0x0112, 0x0A },
324 { 0x0113, 0x0A },
325 { 0x0114, 0x03 },
326 { 0x0342, 0x14 },
327 { 0x0343, 0xE8 },
328 { 0x0340, 0x06 },
329 { 0x0341, 0x38 },
330 { 0x0344, 0x00 },
331 { 0x0345, 0x00 },
332 { 0x0346, 0x00 },
333 { 0x0347, 0x00 },
334 { 0x0348, 0x10 },
335 { 0x0349, 0x6F },
336 { 0x034A, 0x0C },
337 { 0x034B, 0x2E },
338 { 0x0381, 0x01 },
339 { 0x0383, 0x01 },
340 { 0x0385, 0x01 },
341 { 0x0387, 0x01 },
342 { 0x0900, 0x01 },
343 { 0x0901, 0x12 },
344 { 0x0401, 0x01 },
345 { 0x0404, 0x00 },
346 { 0x0405, 0x20 },
347 { 0x0408, 0x00 },
348 { 0x0409, 0x02 },
349 { 0x040A, 0x00 },
350 { 0x040B, 0x00 },
351 { 0x040C, 0x10 },
352 { 0x040D, 0x6A },
353 { 0x040E, 0x06 },
354 { 0x040F, 0x18 },
355 { 0x3038, 0x00 },
356 { 0x303A, 0x00 },
357 { 0x303B, 0x10 },
358 { 0x300D, 0x00 },
359 { 0x034C, 0x08 },
360 { 0x034D, 0x38 },
361 { 0x034E, 0x06 },
362 { 0x034F, 0x18 },
363 { 0x0350, 0x01 },
364 { 0x0202, 0x06 },
365 { 0x0203, 0x2E },
366 { 0x0204, 0x00 },
367 { 0x0205, 0x00 },
368 { 0x020E, 0x01 },
369 { 0x020F, 0x00 },
370 { 0x0210, 0x01 },
371 { 0x0211, 0x00 },
372 { 0x0212, 0x01 },
373 { 0x0213, 0x00 },
374 { 0x0214, 0x01 },
375 { 0x0215, 0x00 },
376 { 0x7BCD, 0x01 },
377 { 0x94DC, 0x20 },
378 { 0x94DD, 0x20 },
379 { 0x94DE, 0x20 },
380 { 0x95DC, 0x20 },
381 { 0x95DD, 0x20 },
382 { 0x95DE, 0x20 },
383 { 0x7FB0, 0x00 },
384 { 0x9010, 0x3E },
385 { 0x9419, 0x50 },
386 { 0x941B, 0x50 },
387 { 0x9519, 0x50 },
388 { 0x951B, 0x50 },
389 { 0x3030, 0x00 },
390 { 0x3032, 0x00 },
391 { 0x0220, 0x00 },
392 };
393
394 static const struct imx258_reg mode_1048_780_regs[] = {
395 { 0x0136, 0x13 },
396 { 0x0137, 0x33 },
397 { 0x3051, 0x00 },
398 { 0x3052, 0x00 },
399 { 0x4E21, 0x14 },
400 { 0x6B11, 0xCF },
401 { 0x7FF0, 0x08 },
402 { 0x7FF1, 0x0F },
403 { 0x7FF2, 0x08 },
404 { 0x7FF3, 0x1B },
405 { 0x7FF4, 0x23 },
406 { 0x7FF5, 0x60 },
407 { 0x7FF6, 0x00 },
408 { 0x7FF7, 0x01 },
409 { 0x7FF8, 0x00 },
410 { 0x7FF9, 0x78 },
411 { 0x7FFA, 0x00 },
412 { 0x7FFB, 0x00 },
413 { 0x7FFC, 0x00 },
414 { 0x7FFD, 0x00 },
415 { 0x7FFE, 0x00 },
416 { 0x7FFF, 0x03 },
417 { 0x7F76, 0x03 },
418 { 0x7F77, 0xFE },
419 { 0x7FA8, 0x03 },
420 { 0x7FA9, 0xFE },
421 { 0x7B24, 0x81 },
422 { 0x7B25, 0x00 },
423 { 0x6564, 0x07 },
424 { 0x6B0D, 0x41 },
425 { 0x653D, 0x04 },
426 { 0x6B05, 0x8C },
427 { 0x6B06, 0xF9 },
428 { 0x6B08, 0x65 },
429 { 0x6B09, 0xFC },
430 { 0x6B0A, 0xCF },
431 { 0x6B0B, 0xD2 },
432 { 0x6700, 0x0E },
433 { 0x6707, 0x0E },
434 { 0x9104, 0x00 },
435 { 0x4648, 0x7F },
436 { 0x7420, 0x00 },
437 { 0x7421, 0x1C },
438 { 0x7422, 0x00 },
439 { 0x7423, 0xD7 },
440 { 0x5F04, 0x00 },
441 { 0x5F05, 0xED },
442 { 0x0112, 0x0A },
443 { 0x0113, 0x0A },
444 { 0x0114, 0x03 },
445 { 0x0342, 0x14 },
446 { 0x0343, 0xE8 },
447 { 0x0340, 0x03 },
448 { 0x0341, 0x4C },
449 { 0x0344, 0x00 },
450 { 0x0345, 0x00 },
451 { 0x0346, 0x00 },
452 { 0x0347, 0x00 },
453 { 0x0348, 0x10 },
454 { 0x0349, 0x6F },
455 { 0x034A, 0x0C },
456 { 0x034B, 0x2E },
457 { 0x0381, 0x01 },
458 { 0x0383, 0x01 },
459 { 0x0385, 0x01 },
460 { 0x0387, 0x01 },
461 { 0x0900, 0x01 },
462 { 0x0901, 0x14 },
463 { 0x0401, 0x01 },
464 { 0x0404, 0x00 },
465 { 0x0405, 0x40 },
466 { 0x0408, 0x00 },
467 { 0x0409, 0x06 },
468 { 0x040A, 0x00 },
469 { 0x040B, 0x00 },
470 { 0x040C, 0x10 },
471 { 0x040D, 0x64 },
472 { 0x040E, 0x03 },
473 { 0x040F, 0x0C },
474 { 0x3038, 0x00 },
475 { 0x303A, 0x00 },
476 { 0x303B, 0x10 },
477 { 0x300D, 0x00 },
478 { 0x034C, 0x04 },
479 { 0x034D, 0x18 },
480 { 0x034E, 0x03 },
481 { 0x034F, 0x0C },
482 { 0x0350, 0x01 },
483 { 0x0202, 0x03 },
484 { 0x0203, 0x42 },
485 { 0x0204, 0x00 },
486 { 0x0205, 0x00 },
487 { 0x020E, 0x01 },
488 { 0x020F, 0x00 },
489 { 0x0210, 0x01 },
490 { 0x0211, 0x00 },
491 { 0x0212, 0x01 },
492 { 0x0213, 0x00 },
493 { 0x0214, 0x01 },
494 { 0x0215, 0x00 },
495 { 0x7BCD, 0x00 },
496 { 0x94DC, 0x20 },
497 { 0x94DD, 0x20 },
498 { 0x94DE, 0x20 },
499 { 0x95DC, 0x20 },
500 { 0x95DD, 0x20 },
501 { 0x95DE, 0x20 },
502 { 0x7FB0, 0x00 },
503 { 0x9010, 0x3E },
504 { 0x9419, 0x50 },
505 { 0x941B, 0x50 },
506 { 0x9519, 0x50 },
507 { 0x951B, 0x50 },
508 { 0x3030, 0x00 },
509 { 0x3032, 0x00 },
510 { 0x0220, 0x00 },
511 };
512
513 static const char * const imx258_test_pattern_menu[] = {
514 "Disabled",
515 "Solid Colour",
516 "Eight Vertical Colour Bars",
517 "Colour Bars With Fade to Grey",
518 "Pseudorandom Sequence (PN9)",
519 };
520
521 /* Configurations for supported link frequencies */
522 #define IMX258_LINK_FREQ_634MHZ 633600000ULL
523 #define IMX258_LINK_FREQ_320MHZ 320000000ULL
524
525 enum {
526 IMX258_LINK_FREQ_1267MBPS,
527 IMX258_LINK_FREQ_640MBPS,
528 };
529
530 /*
531 * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample
532 * data rate => double data rate; number of lanes => 4; bits per pixel => 10
533 */
534 static u64 link_freq_to_pixel_rate(u64 f)
535 {
536 f *= 2 * 4;
537 do_div(f, 10);
538
539 return f;
540 }
541
542 /* Menu items for LINK_FREQ V4L2 control */
543 static const s64 link_freq_menu_items[] = {
544 IMX258_LINK_FREQ_634MHZ,
545 IMX258_LINK_FREQ_320MHZ,
546 };
547
548 /* Link frequency configs */
549 static const struct imx258_link_freq_config link_freq_configs[] = {
550 [IMX258_LINK_FREQ_1267MBPS] = {
551 .pixels_per_line = IMX258_PPL_DEFAULT,
552 .reg_list = {
553 .num_of_regs = ARRAY_SIZE(mipi_data_rate_1267mbps),
554 .regs = mipi_data_rate_1267mbps,
555 }
556 },
557 [IMX258_LINK_FREQ_640MBPS] = {
558 .pixels_per_line = IMX258_PPL_DEFAULT,
559 .reg_list = {
560 .num_of_regs = ARRAY_SIZE(mipi_data_rate_640mbps),
561 .regs = mipi_data_rate_640mbps,
562 }
563 },
564 };
565
566 /* Mode configs */
567 static const struct imx258_mode supported_modes[] = {
568 {
569 .width = 4208,
570 .height = 3118,
571 .vts_def = IMX258_VTS_30FPS,
572 .vts_min = IMX258_VTS_30FPS,
573 .reg_list = {
574 .num_of_regs = ARRAY_SIZE(mode_4208x3118_regs),
575 .regs = mode_4208x3118_regs,
576 },
577 .link_freq_index = IMX258_LINK_FREQ_1267MBPS,
578 },
579 {
580 .width = 2104,
581 .height = 1560,
582 .vts_def = IMX258_VTS_30FPS_2K,
583 .vts_min = IMX258_VTS_30FPS_2K,
584 .reg_list = {
585 .num_of_regs = ARRAY_SIZE(mode_2104_1560_regs),
586 .regs = mode_2104_1560_regs,
587 },
588 .link_freq_index = IMX258_LINK_FREQ_640MBPS,
589 },
590 {
591 .width = 1048,
592 .height = 780,
593 .vts_def = IMX258_VTS_30FPS_VGA,
594 .vts_min = IMX258_VTS_30FPS_VGA,
595 .reg_list = {
596 .num_of_regs = ARRAY_SIZE(mode_1048_780_regs),
597 .regs = mode_1048_780_regs,
598 },
599 .link_freq_index = IMX258_LINK_FREQ_640MBPS,
600 },
601 };
602
603 struct imx258 {
604 struct v4l2_subdev sd;
605 struct media_pad pad;
606
607 struct v4l2_ctrl_handler ctrl_handler;
608 /* V4L2 Controls */
609 struct v4l2_ctrl *link_freq;
610 struct v4l2_ctrl *pixel_rate;
611 struct v4l2_ctrl *vblank;
612 struct v4l2_ctrl *hblank;
613 struct v4l2_ctrl *exposure;
614
615 /* Current mode */
616 const struct imx258_mode *cur_mode;
617
618 /*
619 * Mutex for serialized access:
620 * Protect sensor module set pad format and start/stop streaming safely.
621 */
622 struct mutex mutex;
623
624 /* Streaming on/off */
625 bool streaming;
626
627 struct clk *clk;
628 };
629
630 static inline struct imx258 *to_imx258(struct v4l2_subdev *_sd)
631 {
632 return container_of(_sd, struct imx258, sd);
633 }
634
635 /* Read registers up to 2 at a time */
636 static int imx258_read_reg(struct imx258 *imx258, u16 reg, u32 len, u32 *val)
637 {
638 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
639 struct i2c_msg msgs[2];
640 u8 addr_buf[2] = { reg >> 8, reg & 0xff };
641 u8 data_buf[4] = { 0, };
642 int ret;
643
644 if (len > 4)
645 return -EINVAL;
646
647 /* Write register address */
648 msgs[0].addr = client->addr;
649 msgs[0].flags = 0;
650 msgs[0].len = ARRAY_SIZE(addr_buf);
651 msgs[0].buf = addr_buf;
652
653 /* Read data from register */
654 msgs[1].addr = client->addr;
655 msgs[1].flags = I2C_M_RD;
656 msgs[1].len = len;
657 msgs[1].buf = &data_buf[4 - len];
658
659 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
660 if (ret != ARRAY_SIZE(msgs))
661 return -EIO;
662
663 *val = get_unaligned_be32(data_buf);
664
665 return 0;
666 }
667
668 /* Write registers up to 2 at a time */
669 static int imx258_write_reg(struct imx258 *imx258, u16 reg, u32 len, u32 val)
670 {
671 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
672 u8 buf[6];
673
674 if (len > 4)
675 return -EINVAL;
676
677 put_unaligned_be16(reg, buf);
678 put_unaligned_be32(val << (8 * (4 - len)), buf + 2);
679 if (i2c_master_send(client, buf, len + 2) != len + 2)
680 return -EIO;
681
682 return 0;
683 }
684
685 /* Write a list of registers */
686 static int imx258_write_regs(struct imx258 *imx258,
687 const struct imx258_reg *regs, u32 len)
688 {
689 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
690 unsigned int i;
691 int ret;
692
693 for (i = 0; i < len; i++) {
694 ret = imx258_write_reg(imx258, regs[i].address, 1,
695 regs[i].val);
696 if (ret) {
697 dev_err_ratelimited(
698 &client->dev,
699 "Failed to write reg 0x%4.4x. error = %d\n",
700 regs[i].address, ret);
701
702 return ret;
703 }
704 }
705
706 return 0;
707 }
708
709 /* Open sub-device */
710 static int imx258_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
711 {
712 struct v4l2_mbus_framefmt *try_fmt =
713 v4l2_subdev_get_try_format(sd, fh->state, 0);
714
715 /* Initialize try_fmt */
716 try_fmt->width = supported_modes[0].width;
717 try_fmt->height = supported_modes[0].height;
718 try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
719 try_fmt->field = V4L2_FIELD_NONE;
720
721 return 0;
722 }
723
724 static int imx258_update_digital_gain(struct imx258 *imx258, u32 len, u32 val)
725 {
726 int ret;
727
728 ret = imx258_write_reg(imx258, IMX258_REG_GR_DIGITAL_GAIN,
729 IMX258_REG_VALUE_16BIT,
730 val);
731 if (ret)
732 return ret;
733 ret = imx258_write_reg(imx258, IMX258_REG_GB_DIGITAL_GAIN,
734 IMX258_REG_VALUE_16BIT,
735 val);
736 if (ret)
737 return ret;
738 ret = imx258_write_reg(imx258, IMX258_REG_R_DIGITAL_GAIN,
739 IMX258_REG_VALUE_16BIT,
740 val);
741 if (ret)
742 return ret;
743 ret = imx258_write_reg(imx258, IMX258_REG_B_DIGITAL_GAIN,
744 IMX258_REG_VALUE_16BIT,
745 val);
746 if (ret)
747 return ret;
748 return 0;
749 }
750
751 static int imx258_set_ctrl(struct v4l2_ctrl *ctrl)
752 {
753 struct imx258 *imx258 =
754 container_of(ctrl->handler, struct imx258, ctrl_handler);
755 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
756 int ret = 0;
757
758 /*
759 * Applying V4L2 control value only happens
760 * when power is up for streaming
761 */
762 if (pm_runtime_get_if_in_use(&client->dev) == 0)
763 return 0;
764
765 switch (ctrl->id) {
766 case V4L2_CID_ANALOGUE_GAIN:
767 ret = imx258_write_reg(imx258, IMX258_REG_ANALOG_GAIN,
768 IMX258_REG_VALUE_16BIT,
769 ctrl->val);
770 break;
771 case V4L2_CID_EXPOSURE:
772 ret = imx258_write_reg(imx258, IMX258_REG_EXPOSURE,
773 IMX258_REG_VALUE_16BIT,
774 ctrl->val);
775 break;
776 case V4L2_CID_DIGITAL_GAIN:
777 ret = imx258_update_digital_gain(imx258, IMX258_REG_VALUE_16BIT,
778 ctrl->val);
779 break;
780 case V4L2_CID_TEST_PATTERN:
781 ret = imx258_write_reg(imx258, IMX258_REG_TEST_PATTERN,
782 IMX258_REG_VALUE_16BIT,
783 ctrl->val);
784 ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
785 IMX258_REG_VALUE_08BIT,
786 !ctrl->val ? REG_CONFIG_MIRROR_FLIP :
787 REG_CONFIG_FLIP_TEST_PATTERN);
788 break;
789 case V4L2_CID_WIDE_DYNAMIC_RANGE:
790 if (!ctrl->val) {
791 ret = imx258_write_reg(imx258, IMX258_REG_HDR,
792 IMX258_REG_VALUE_08BIT,
793 IMX258_HDR_RATIO_MIN);
794 } else {
795 ret = imx258_write_reg(imx258, IMX258_REG_HDR,
796 IMX258_REG_VALUE_08BIT,
797 IMX258_HDR_ON);
798 if (ret)
799 break;
800 ret = imx258_write_reg(imx258, IMX258_REG_HDR_RATIO,
801 IMX258_REG_VALUE_08BIT,
802 BIT(IMX258_HDR_RATIO_MAX));
803 }
804 break;
805 default:
806 dev_info(&client->dev,
807 "ctrl(id:0x%x,val:0x%x) is not handled\n",
808 ctrl->id, ctrl->val);
809 ret = -EINVAL;
810 break;
811 }
812
813 pm_runtime_put(&client->dev);
814
815 return ret;
816 }
817
818 static const struct v4l2_ctrl_ops imx258_ctrl_ops = {
819 .s_ctrl = imx258_set_ctrl,
820 };
821
822 static int imx258_enum_mbus_code(struct v4l2_subdev *sd,
823 struct v4l2_subdev_state *sd_state,
824 struct v4l2_subdev_mbus_code_enum *code)
825 {
826 /* Only one bayer order(GRBG) is supported */
827 if (code->index > 0)
828 return -EINVAL;
829
830 code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
831
832 return 0;
833 }
834
835 static int imx258_enum_frame_size(struct v4l2_subdev *sd,
836 struct v4l2_subdev_state *sd_state,
837 struct v4l2_subdev_frame_size_enum *fse)
838 {
839 if (fse->index >= ARRAY_SIZE(supported_modes))
840 return -EINVAL;
841
842 if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
843 return -EINVAL;
844
845 fse->min_width = supported_modes[fse->index].width;
846 fse->max_width = fse->min_width;
847 fse->min_height = supported_modes[fse->index].height;
848 fse->max_height = fse->min_height;
849
850 return 0;
851 }
852
853 static void imx258_update_pad_format(const struct imx258_mode *mode,
854 struct v4l2_subdev_format *fmt)
855 {
856 fmt->format.width = mode->width;
857 fmt->format.height = mode->height;
858 fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
859 fmt->format.field = V4L2_FIELD_NONE;
860 }
861
862 static int __imx258_get_pad_format(struct imx258 *imx258,
863 struct v4l2_subdev_state *sd_state,
864 struct v4l2_subdev_format *fmt)
865 {
866 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
867 fmt->format = *v4l2_subdev_get_try_format(&imx258->sd,
868 sd_state,
869 fmt->pad);
870 else
871 imx258_update_pad_format(imx258->cur_mode, fmt);
872
873 return 0;
874 }
875
876 static int imx258_get_pad_format(struct v4l2_subdev *sd,
877 struct v4l2_subdev_state *sd_state,
878 struct v4l2_subdev_format *fmt)
879 {
880 struct imx258 *imx258 = to_imx258(sd);
881 int ret;
882
883 mutex_lock(&imx258->mutex);
884 ret = __imx258_get_pad_format(imx258, sd_state, fmt);
885 mutex_unlock(&imx258->mutex);
886
887 return ret;
888 }
889
890 static int imx258_set_pad_format(struct v4l2_subdev *sd,
891 struct v4l2_subdev_state *sd_state,
892 struct v4l2_subdev_format *fmt)
893 {
894 struct imx258 *imx258 = to_imx258(sd);
895 const struct imx258_mode *mode;
896 struct v4l2_mbus_framefmt *framefmt;
897 s32 vblank_def;
898 s32 vblank_min;
899 s64 h_blank;
900 s64 pixel_rate;
901 s64 link_freq;
902
903 mutex_lock(&imx258->mutex);
904
905 /* Only one raw bayer(GBRG) order is supported */
906 fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
907
908 mode = v4l2_find_nearest_size(supported_modes,
909 ARRAY_SIZE(supported_modes), width, height,
910 fmt->format.width, fmt->format.height);
911 imx258_update_pad_format(mode, fmt);
912 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
913 framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
914 *framefmt = fmt->format;
915 } else {
916 imx258->cur_mode = mode;
917 __v4l2_ctrl_s_ctrl(imx258->link_freq, mode->link_freq_index);
918
919 link_freq = link_freq_menu_items[mode->link_freq_index];
920 pixel_rate = link_freq_to_pixel_rate(link_freq);
921 __v4l2_ctrl_s_ctrl_int64(imx258->pixel_rate, pixel_rate);
922 /* Update limits and set FPS to default */
923 vblank_def = imx258->cur_mode->vts_def -
924 imx258->cur_mode->height;
925 vblank_min = imx258->cur_mode->vts_min -
926 imx258->cur_mode->height;
927 __v4l2_ctrl_modify_range(
928 imx258->vblank, vblank_min,
929 IMX258_VTS_MAX - imx258->cur_mode->height, 1,
930 vblank_def);
931 __v4l2_ctrl_s_ctrl(imx258->vblank, vblank_def);
932 h_blank =
933 link_freq_configs[mode->link_freq_index].pixels_per_line
934 - imx258->cur_mode->width;
935 __v4l2_ctrl_modify_range(imx258->hblank, h_blank,
936 h_blank, 1, h_blank);
937 }
938
939 mutex_unlock(&imx258->mutex);
940
941 return 0;
942 }
943
944 /* Start streaming */
945 static int imx258_start_streaming(struct imx258 *imx258)
946 {
947 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
948 const struct imx258_reg_list *reg_list;
949 int ret, link_freq_index;
950
951 /* Setup PLL */
952 link_freq_index = imx258->cur_mode->link_freq_index;
953 reg_list = &link_freq_configs[link_freq_index].reg_list;
954 ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs);
955 if (ret) {
956 dev_err(&client->dev, "%s failed to set plls\n", __func__);
957 return ret;
958 }
959
960 /* Apply default values of current mode */
961 reg_list = &imx258->cur_mode->reg_list;
962 ret = imx258_write_regs(imx258, reg_list->regs, reg_list->num_of_regs);
963 if (ret) {
964 dev_err(&client->dev, "%s failed to set mode\n", __func__);
965 return ret;
966 }
967
968 /* Set Orientation be 180 degree */
969 ret = imx258_write_reg(imx258, REG_MIRROR_FLIP_CONTROL,
970 IMX258_REG_VALUE_08BIT, REG_CONFIG_MIRROR_FLIP);
971 if (ret) {
972 dev_err(&client->dev, "%s failed to set orientation\n",
973 __func__);
974 return ret;
975 }
976
977 /* Apply customized values from user */
978 ret = __v4l2_ctrl_handler_setup(imx258->sd.ctrl_handler);
979 if (ret)
980 return ret;
981
982 /* set stream on register */
983 return imx258_write_reg(imx258, IMX258_REG_MODE_SELECT,
984 IMX258_REG_VALUE_08BIT,
985 IMX258_MODE_STREAMING);
986 }
987
988 /* Stop streaming */
989 static int imx258_stop_streaming(struct imx258 *imx258)
990 {
991 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
992 int ret;
993
994 /* set stream off register */
995 ret = imx258_write_reg(imx258, IMX258_REG_MODE_SELECT,
996 IMX258_REG_VALUE_08BIT, IMX258_MODE_STANDBY);
997 if (ret)
998 dev_err(&client->dev, "%s failed to set stream\n", __func__);
999
1000 /*
1001 * Return success even if it was an error, as there is nothing the
1002 * caller can do about it.
1003 */
1004 return 0;
1005 }
1006
1007 static int imx258_power_on(struct device *dev)
1008 {
1009 struct v4l2_subdev *sd = dev_get_drvdata(dev);
1010 struct imx258 *imx258 = to_imx258(sd);
1011 int ret;
1012
1013 ret = clk_prepare_enable(imx258->clk);
1014 if (ret)
1015 dev_err(dev, "failed to enable clock\n");
1016
1017 return ret;
1018 }
1019
1020 static int imx258_power_off(struct device *dev)
1021 {
1022 struct v4l2_subdev *sd = dev_get_drvdata(dev);
1023 struct imx258 *imx258 = to_imx258(sd);
1024
1025 clk_disable_unprepare(imx258->clk);
1026
1027 return 0;
1028 }
1029
1030 static int imx258_set_stream(struct v4l2_subdev *sd, int enable)
1031 {
1032 struct imx258 *imx258 = to_imx258(sd);
1033 struct i2c_client *client = v4l2_get_subdevdata(sd);
1034 int ret = 0;
1035
1036 mutex_lock(&imx258->mutex);
1037 if (imx258->streaming == enable) {
1038 mutex_unlock(&imx258->mutex);
1039 return 0;
1040 }
1041
1042 if (enable) {
1043 ret = pm_runtime_resume_and_get(&client->dev);
1044 if (ret < 0)
1045 goto err_unlock;
1046
1047 /*
1048 * Apply default & customized values
1049 * and then start streaming.
1050 */
1051 ret = imx258_start_streaming(imx258);
1052 if (ret)
1053 goto err_rpm_put;
1054 } else {
1055 imx258_stop_streaming(imx258);
1056 pm_runtime_put(&client->dev);
1057 }
1058
1059 imx258->streaming = enable;
1060 mutex_unlock(&imx258->mutex);
1061
1062 return ret;
1063
1064 err_rpm_put:
1065 pm_runtime_put(&client->dev);
1066 err_unlock:
1067 mutex_unlock(&imx258->mutex);
1068
1069 return ret;
1070 }
1071
1072 static int __maybe_unused imx258_suspend(struct device *dev)
1073 {
1074 struct v4l2_subdev *sd = dev_get_drvdata(dev);
1075 struct imx258 *imx258 = to_imx258(sd);
1076
1077 if (imx258->streaming)
1078 imx258_stop_streaming(imx258);
1079
1080 return 0;
1081 }
1082
1083 static int __maybe_unused imx258_resume(struct device *dev)
1084 {
1085 struct v4l2_subdev *sd = dev_get_drvdata(dev);
1086 struct imx258 *imx258 = to_imx258(sd);
1087 int ret;
1088
1089 if (imx258->streaming) {
1090 ret = imx258_start_streaming(imx258);
1091 if (ret)
1092 goto error;
1093 }
1094
1095 return 0;
1096
1097 error:
1098 imx258_stop_streaming(imx258);
1099 imx258->streaming = 0;
1100 return ret;
1101 }
1102
1103 /* Verify chip ID */
1104 static int imx258_identify_module(struct imx258 *imx258)
1105 {
1106 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
1107 int ret;
1108 u32 val;
1109
1110 ret = imx258_read_reg(imx258, IMX258_REG_CHIP_ID,
1111 IMX258_REG_VALUE_16BIT, &val);
1112 if (ret) {
1113 dev_err(&client->dev, "failed to read chip id %x\n",
1114 IMX258_CHIP_ID);
1115 return ret;
1116 }
1117
1118 if (val != IMX258_CHIP_ID) {
1119 dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
1120 IMX258_CHIP_ID, val);
1121 return -EIO;
1122 }
1123
1124 return 0;
1125 }
1126
1127 static const struct v4l2_subdev_video_ops imx258_video_ops = {
1128 .s_stream = imx258_set_stream,
1129 };
1130
1131 static const struct v4l2_subdev_pad_ops imx258_pad_ops = {
1132 .enum_mbus_code = imx258_enum_mbus_code,
1133 .get_fmt = imx258_get_pad_format,
1134 .set_fmt = imx258_set_pad_format,
1135 .enum_frame_size = imx258_enum_frame_size,
1136 };
1137
1138 static const struct v4l2_subdev_ops imx258_subdev_ops = {
1139 .video = &imx258_video_ops,
1140 .pad = &imx258_pad_ops,
1141 };
1142
1143 static const struct v4l2_subdev_internal_ops imx258_internal_ops = {
1144 .open = imx258_open,
1145 };
1146
1147 /* Initialize control handlers */
1148 static int imx258_init_controls(struct imx258 *imx258)
1149 {
1150 struct i2c_client *client = v4l2_get_subdevdata(&imx258->sd);
1151 struct v4l2_ctrl_handler *ctrl_hdlr;
1152 s64 vblank_def;
1153 s64 vblank_min;
1154 s64 pixel_rate_min;
1155 s64 pixel_rate_max;
1156 int ret;
1157
1158 ctrl_hdlr = &imx258->ctrl_handler;
1159 ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
1160 if (ret)
1161 return ret;
1162
1163 mutex_init(&imx258->mutex);
1164 ctrl_hdlr->lock = &imx258->mutex;
1165 imx258->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
1166 &imx258_ctrl_ops,
1167 V4L2_CID_LINK_FREQ,
1168 ARRAY_SIZE(link_freq_menu_items) - 1,
1169 0,
1170 link_freq_menu_items);
1171
1172 if (imx258->link_freq)
1173 imx258->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1174
1175 pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
1176 pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]);
1177 /* By default, PIXEL_RATE is read only */
1178 imx258->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops,
1179 V4L2_CID_PIXEL_RATE,
1180 pixel_rate_min, pixel_rate_max,
1181 1, pixel_rate_max);
1182
1183
1184 vblank_def = imx258->cur_mode->vts_def - imx258->cur_mode->height;
1185 vblank_min = imx258->cur_mode->vts_min - imx258->cur_mode->height;
1186 imx258->vblank = v4l2_ctrl_new_std(
1187 ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_VBLANK,
1188 vblank_min,
1189 IMX258_VTS_MAX - imx258->cur_mode->height, 1,
1190 vblank_def);
1191
1192 if (imx258->vblank)
1193 imx258->vblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1194
1195 imx258->hblank = v4l2_ctrl_new_std(
1196 ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_HBLANK,
1197 IMX258_PPL_DEFAULT - imx258->cur_mode->width,
1198 IMX258_PPL_DEFAULT - imx258->cur_mode->width,
1199 1,
1200 IMX258_PPL_DEFAULT - imx258->cur_mode->width);
1201
1202 if (imx258->hblank)
1203 imx258->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1204
1205 imx258->exposure = v4l2_ctrl_new_std(
1206 ctrl_hdlr, &imx258_ctrl_ops,
1207 V4L2_CID_EXPOSURE, IMX258_EXPOSURE_MIN,
1208 IMX258_EXPOSURE_MAX, IMX258_EXPOSURE_STEP,
1209 IMX258_EXPOSURE_DEFAULT);
1210
1211 v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
1212 IMX258_ANA_GAIN_MIN, IMX258_ANA_GAIN_MAX,
1213 IMX258_ANA_GAIN_STEP, IMX258_ANA_GAIN_DEFAULT);
1214
1215 v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
1216 IMX258_DGTL_GAIN_MIN, IMX258_DGTL_GAIN_MAX,
1217 IMX258_DGTL_GAIN_STEP,
1218 IMX258_DGTL_GAIN_DEFAULT);
1219
1220 v4l2_ctrl_new_std(ctrl_hdlr, &imx258_ctrl_ops, V4L2_CID_WIDE_DYNAMIC_RANGE,
1221 0, 1, 1, IMX258_HDR_RATIO_DEFAULT);
1222
1223 v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &imx258_ctrl_ops,
1224 V4L2_CID_TEST_PATTERN,
1225 ARRAY_SIZE(imx258_test_pattern_menu) - 1,
1226 0, 0, imx258_test_pattern_menu);
1227
1228 if (ctrl_hdlr->error) {
1229 ret = ctrl_hdlr->error;
1230 dev_err(&client->dev, "%s control init failed (%d)\n",
1231 __func__, ret);
1232 goto error;
1233 }
1234
1235 imx258->sd.ctrl_handler = ctrl_hdlr;
1236
1237 return 0;
1238
1239 error:
1240 v4l2_ctrl_handler_free(ctrl_hdlr);
1241 mutex_destroy(&imx258->mutex);
1242
1243 return ret;
1244 }
1245
1246 static void imx258_free_controls(struct imx258 *imx258)
1247 {
1248 v4l2_ctrl_handler_free(imx258->sd.ctrl_handler);
1249 mutex_destroy(&imx258->mutex);
1250 }
1251
1252 static int imx258_probe(struct i2c_client *client)
1253 {
1254 struct imx258 *imx258;
1255 int ret;
1256 u32 val = 0;
1257
1258 imx258 = devm_kzalloc(&client->dev, sizeof(*imx258), GFP_KERNEL);
1259 if (!imx258)
1260 return -ENOMEM;
1261
1262 imx258->clk = devm_clk_get_optional(&client->dev, NULL);
1263 if (!imx258->clk) {
1264 dev_dbg(&client->dev,
1265 "no clock provided, using clock-frequency property\n");
1266
1267 device_property_read_u32(&client->dev, "clock-frequency", &val);
1268 if (val != IMX258_INPUT_CLOCK_FREQ)
1269 return -EINVAL;
1270 } else if (IS_ERR(imx258->clk)) {
1271 return dev_err_probe(&client->dev, PTR_ERR(imx258->clk),
1272 "error getting clock\n");
1273 }
1274 if (clk_get_rate(imx258->clk) != IMX258_INPUT_CLOCK_FREQ) {
1275 dev_err(&client->dev, "input clock frequency not supported\n");
1276 return -EINVAL;
1277 }
1278
1279 /*
1280 * Check that the device is mounted upside down. The driver only
1281 * supports a single pixel order right now.
1282 */
1283 ret = device_property_read_u32(&client->dev, "rotation", &val);
1284 if (ret || val != 180)
1285 return -EINVAL;
1286
1287 /* Initialize subdev */
1288 v4l2_i2c_subdev_init(&imx258->sd, client, &imx258_subdev_ops);
1289
1290 /* Will be powered off via pm_runtime_idle */
1291 ret = imx258_power_on(&client->dev);
1292 if (ret)
1293 return ret;
1294
1295 /* Check module identity */
1296 ret = imx258_identify_module(imx258);
1297 if (ret)
1298 goto error_identify;
1299
1300 /* Set default mode to max resolution */
1301 imx258->cur_mode = &supported_modes[0];
1302
1303 ret = imx258_init_controls(imx258);
1304 if (ret)
1305 goto error_identify;
1306
1307 /* Initialize subdev */
1308 imx258->sd.internal_ops = &imx258_internal_ops;
1309 imx258->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1310 imx258->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
1311
1312 /* Initialize source pad */
1313 imx258->pad.flags = MEDIA_PAD_FL_SOURCE;
1314
1315 ret = media_entity_pads_init(&imx258->sd.entity, 1, &imx258->pad);
1316 if (ret)
1317 goto error_handler_free;
1318
1319 ret = v4l2_async_register_subdev_sensor(&imx258->sd);
1320 if (ret < 0)
1321 goto error_media_entity;
1322
1323 pm_runtime_set_active(&client->dev);
1324 pm_runtime_enable(&client->dev);
1325 pm_runtime_idle(&client->dev);
1326
1327 return 0;
1328
1329 error_media_entity:
1330 media_entity_cleanup(&imx258->sd.entity);
1331
1332 error_handler_free:
1333 imx258_free_controls(imx258);
1334
1335 error_identify:
1336 imx258_power_off(&client->dev);
1337
1338 return ret;
1339 }
1340
1341 static int imx258_remove(struct i2c_client *client)
1342 {
1343 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1344 struct imx258 *imx258 = to_imx258(sd);
1345
1346 v4l2_async_unregister_subdev(sd);
1347 media_entity_cleanup(&sd->entity);
1348 imx258_free_controls(imx258);
1349
1350 pm_runtime_disable(&client->dev);
1351 if (!pm_runtime_status_suspended(&client->dev))
1352 imx258_power_off(&client->dev);
1353 pm_runtime_set_suspended(&client->dev);
1354
1355 return 0;
1356 }
1357
1358 static const struct dev_pm_ops imx258_pm_ops = {
1359 SET_SYSTEM_SLEEP_PM_OPS(imx258_suspend, imx258_resume)
1360 SET_RUNTIME_PM_OPS(imx258_power_off, imx258_power_on, NULL)
1361 };
1362
1363 #ifdef CONFIG_ACPI
1364 static const struct acpi_device_id imx258_acpi_ids[] = {
1365 { "SONY258A" },
1366 { /* sentinel */ }
1367 };
1368
1369 MODULE_DEVICE_TABLE(acpi, imx258_acpi_ids);
1370 #endif
1371
1372 static const struct of_device_id imx258_dt_ids[] = {
1373 { .compatible = "sony,imx258" },
1374 { /* sentinel */ }
1375 };
1376 MODULE_DEVICE_TABLE(of, imx258_dt_ids);
1377
1378 static struct i2c_driver imx258_i2c_driver = {
1379 .driver = {
1380 .name = "imx258",
1381 .pm = &imx258_pm_ops,
1382 .acpi_match_table = ACPI_PTR(imx258_acpi_ids),
1383 .of_match_table = imx258_dt_ids,
1384 },
1385 .probe_new = imx258_probe,
1386 .remove = imx258_remove,
1387 };
1388
1389 module_i2c_driver(imx258_i2c_driver);
1390
1391 MODULE_AUTHOR("Yeh, Andy <andy.yeh@intel.com>");
1392 MODULE_AUTHOR("Chiang, Alan");
1393 MODULE_AUTHOR("Chen, Jason");
1394 MODULE_DESCRIPTION("Sony IMX258 sensor driver");
1395 MODULE_LICENSE("GPL v2");
Ubuntu Jammy Linux kernel mirror