1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Sony imx334 sensor driver
4 *
5 * Copyright (C) 2021 Intel Corporation
6 */
7#include <linux/unaligned.h>
8
9#include <linux/clk.h>
10#include <linux/delay.h>
11#include <linux/i2c.h>
12#include <linux/module.h>
13#include <linux/pm_runtime.h>
14
15#include <media/v4l2-cci.h>
16#include <media/v4l2-ctrls.h>
17#include <media/v4l2-fwnode.h>
18#include <media/v4l2-subdev.h>
19
20/* Streaming Mode */
21#define IMX334_REG_MODE_SELECT CCI_REG8(0x3000)
22#define IMX334_MODE_STANDBY 0x01
23#define IMX334_MODE_STREAMING 0x00
24
25/* Lines per frame */
26#define IMX334_REG_VMAX CCI_REG24_LE(0x3030)
27
28#define IMX334_REG_HMAX CCI_REG16_LE(0x3034)
29
30#define IMX334_REG_OPB_SIZE_V CCI_REG8(0x304c)
31#define IMX334_REG_ADBIT CCI_REG8(0x3050)
32#define IMX334_REG_MDBIT CCI_REG8(0x319d)
33#define IMX334_REG_ADBIT1 CCI_REG16_LE(0x341c)
34#define IMX334_REG_Y_OUT_SIZE CCI_REG16_LE(0x3308)
35#define IMX334_REG_XVS_XHS_OUTSEL CCI_REG8(0x31a0)
36#define IMX334_REG_XVS_XHS_DRV CCI_REG8(0x31a1)
37
38/* Chip ID */
39#define IMX334_REG_ID CCI_REG8(0x3044)
40#define IMX334_ID 0x1e
41
42/* Exposure control */
43#define IMX334_REG_SHUTTER CCI_REG24_LE(0x3058)
44#define IMX334_EXPOSURE_MIN 1
45#define IMX334_EXPOSURE_OFFSET 5
46#define IMX334_EXPOSURE_STEP 1
47#define IMX334_EXPOSURE_DEFAULT 0x0648
48
49#define IMX334_REG_LANEMODE CCI_REG8(0x3a01)
50#define IMX334_CSI_4_LANE_MODE 3
51#define IMX334_CSI_8_LANE_MODE 7
52
53/* Window cropping Settings */
54#define IMX334_REG_AREA3_ST_ADR_1 CCI_REG16_LE(0x3074)
55#define IMX334_REG_AREA3_ST_ADR_2 CCI_REG16_LE(0x308e)
56#define IMX334_REG_UNREAD_PARAM5 CCI_REG16_LE(0x30b6)
57#define IMX334_REG_AREA3_WIDTH_1 CCI_REG16_LE(0x3076)
58#define IMX334_REG_AREA3_WIDTH_2 CCI_REG16_LE(0x3090)
59#define IMX334_REG_BLACK_OFSET_ADR CCI_REG16_LE(0x30c6)
60#define IMX334_REG_UNRD_LINE_MAX CCI_REG16_LE(0x30ce)
61#define IMX334_REG_UNREAD_ED_ADR CCI_REG16_LE(0x30d8)
62#define IMX334_REG_UNREAD_PARAM6 CCI_REG16_LE(0x3116)
63
64#define IMX334_REG_VREVERSE CCI_REG8(0x304f)
65#define IMX334_REG_HREVERSE CCI_REG8(0x304e)
66
67/* Binning Settings */
68#define IMX334_REG_HADD_VADD CCI_REG8(0x3199)
69#define IMX334_REG_VALID_EXPAND CCI_REG8(0x31dd)
70#define IMX334_REG_TCYCLE CCI_REG8(0x3300)
71
72/* Analog gain control */
73#define IMX334_REG_AGAIN CCI_REG16_LE(0x30e8)
74#define IMX334_AGAIN_MIN 0
75#define IMX334_AGAIN_MAX 240
76#define IMX334_AGAIN_STEP 1
77#define IMX334_AGAIN_DEFAULT 0
78
79/* Group hold register */
80#define IMX334_REG_HOLD CCI_REG8(0x3001)
81
82#define IMX334_REG_MASTER_MODE CCI_REG8(0x3002)
83#define IMX334_REG_WINMODE CCI_REG8(0x3018)
84#define IMX334_REG_HTRIMMING_START CCI_REG16_LE(0x302c)
85#define IMX334_REG_HNUM CCI_REG16_LE(0x302e)
86
87/* Input clock rate */
88#define IMX334_INCLK_RATE 24000000
89
90/* INCK Setting Register */
91#define IMX334_REG_BCWAIT_TIME CCI_REG8(0x300c)
92#define IMX334_REG_CPWAIT_TIME CCI_REG8(0x300d)
93#define IMX334_REG_INCKSEL1 CCI_REG16_LE(0x314c)
94#define IMX334_REG_INCKSEL2 CCI_REG8(0x315a)
95#define IMX334_REG_INCKSEL3 CCI_REG8(0x3168)
96#define IMX334_REG_INCKSEL4 CCI_REG8(0x316a)
97#define IMX334_REG_SYS_MODE CCI_REG8(0x319e)
98
99#define IMX334_REG_TCLKPOST CCI_REG16_LE(0x3a18)
100#define IMX334_REG_TCLKPREPARE CCI_REG16_LE(0x3a1a)
101#define IMX334_REG_TCLKTRAIL CCI_REG16_LE(0x3a1c)
102#define IMX334_REG_TCLKZERO CCI_REG16_LE(0x3a1e)
103#define IMX334_REG_THSPREPARE CCI_REG16_LE(0x3a20)
104#define IMX334_REG_THSZERO CCI_REG16_LE(0x3a22)
105#define IMX334_REG_THSTRAIL CCI_REG16_LE(0x3a24)
106#define IMX334_REG_THSEXIT CCI_REG16_LE(0x3a26)
107#define IMX334_REG_TPLX CCI_REG16_LE(0x3a28)
108
109/* CSI2 HW configuration */
110#define IMX334_LINK_FREQ_891M 891000000
111#define IMX334_LINK_FREQ_445M 445500000
112#define IMX334_NUM_DATA_LANES 4
113
114#define IMX334_REG_MIN 0x00
115#define IMX334_REG_MAX 0xfffff
116
117/* Test Pattern Control */
118#define IMX334_REG_TP CCI_REG8(0x329e)
119#define IMX334_TP_COLOR_HBARS 0xa
120#define IMX334_TP_COLOR_VBARS 0xb
121
122#define IMX334_TPG_EN_DOUT CCI_REG8(0x329c)
123#define IMX334_TP_ENABLE 0x1
124#define IMX334_TP_DISABLE 0x0
125
126#define IMX334_TPG_COLORW CCI_REG8(0x32a0)
127#define IMX334_TPG_COLORW_120P 0x13
128
129#define IMX334_TP_CLK_EN CCI_REG8(0x3148)
130#define IMX334_TP_CLK_EN_VAL 0x10
131#define IMX334_TP_CLK_DIS_VAL 0x0
132
133#define IMX334_DIG_CLP_MODE CCI_REG8(0x3280)
134
135/**
136 * struct imx334_reg_list - imx334 sensor register list
137 * @num_of_regs: Number of registers in the list
138 * @regs: Pointer to register list
139 */
140struct imx334_reg_list {
141 u32 num_of_regs;
142 const struct cci_reg_sequence *regs;
143};
144
145/**
146 * struct imx334_mode - imx334 sensor mode structure
147 * @width: Frame width
148 * @height: Frame height
149 * @hblank: Horizontal blanking in lines
150 * @vblank: Vertical blanking in lines
151 * @vblank_min: Minimal vertical blanking in lines
152 * @vblank_max: Maximum vertical blanking in lines
153 * @pclk: Sensor pixel clock
154 * @link_freq_idx: Link frequency index
155 * @reg_list: Register list for sensor mode
156 */
157struct imx334_mode {
158 u32 width;
159 u32 height;
160 u32 hblank;
161 u32 vblank;
162 u32 vblank_min;
163 u32 vblank_max;
164 u64 pclk;
165 u32 link_freq_idx;
166 struct imx334_reg_list reg_list;
167};
168
169/**
170 * struct imx334 - imx334 sensor device structure
171 * @dev: Pointer to generic device
172 * @cci: CCI register map
173 * @client: Pointer to i2c client
174 * @sd: V4L2 sub-device
175 * @pad: Media pad. Only one pad supported
176 * @reset_gpio: Sensor reset gpio
177 * @inclk: Sensor input clock
178 * @ctrl_handler: V4L2 control handler
179 * @link_freq_ctrl: Pointer to link frequency control
180 * @pclk_ctrl: Pointer to pixel clock control
181 * @hblank_ctrl: Pointer to horizontal blanking control
182 * @vblank_ctrl: Pointer to vertical blanking control
183 * @exp_ctrl: Pointer to exposure control
184 * @again_ctrl: Pointer to analog gain control
185 * @vblank: Vertical blanking in lines
186 * @cur_mode: Pointer to current selected sensor mode
187 * @link_freq_bitmap: Menu bitmap for link_freq_ctrl
188 * @cur_code: current selected format code
189 */
190struct imx334 {
191 struct device *dev;
192 struct regmap *cci;
193 struct i2c_client *client;
194 struct v4l2_subdev sd;
195 struct media_pad pad;
196 struct gpio_desc *reset_gpio;
197 struct clk *inclk;
198 struct v4l2_ctrl_handler ctrl_handler;
199 struct v4l2_ctrl *link_freq_ctrl;
200 struct v4l2_ctrl *pclk_ctrl;
201 struct v4l2_ctrl *hblank_ctrl;
202 struct v4l2_ctrl *vblank_ctrl;
203 struct {
204 struct v4l2_ctrl *exp_ctrl;
205 struct v4l2_ctrl *again_ctrl;
206 };
207 u32 vblank;
208 const struct imx334_mode *cur_mode;
209 unsigned long link_freq_bitmap;
210 u32 cur_code;
211};
212
213static const s64 link_freq[] = {
214 IMX334_LINK_FREQ_891M,
215 IMX334_LINK_FREQ_445M,
216};
217
218/* Sensor common mode registers values */
219static const struct cci_reg_sequence common_mode_regs[] = {
220 { IMX334_REG_MODE_SELECT, IMX334_MODE_STANDBY },
221 { IMX334_REG_WINMODE, 0x04 },
222 { IMX334_REG_VMAX, 0x0008ca },
223 { IMX334_REG_HMAX, 0x044c },
224 { IMX334_REG_BLACK_OFSET_ADR, 0x0000 },
225 { IMX334_REG_UNRD_LINE_MAX, 0x0000 },
226 { IMX334_REG_OPB_SIZE_V, 0x00 },
227 { IMX334_REG_HREVERSE, 0x00 },
228 { IMX334_REG_VREVERSE, 0x00 },
229 { IMX334_REG_UNREAD_PARAM5, 0x0000 },
230 { IMX334_REG_UNREAD_PARAM6, 0x0008 },
231 { IMX334_REG_XVS_XHS_OUTSEL, 0x20 },
232 { IMX334_REG_XVS_XHS_DRV, 0x0f },
233 { IMX334_REG_BCWAIT_TIME, 0x3b },
234 { IMX334_REG_CPWAIT_TIME, 0x2a },
235 { IMX334_REG_INCKSEL1, 0x0129 },
236 { IMX334_REG_INCKSEL2, 0x06 },
237 { IMX334_REG_INCKSEL3, 0xa0 },
238 { IMX334_REG_INCKSEL4, 0x7e },
239 { IMX334_REG_SYS_MODE, 0x02 },
240 { IMX334_REG_HADD_VADD, 0x00 },
241 { IMX334_REG_VALID_EXPAND, 0x03 },
242 { IMX334_REG_TCYCLE, 0x00 },
243 { IMX334_REG_TCLKPOST, 0x007f },
244 { IMX334_REG_TCLKPREPARE, 0x0037 },
245 { IMX334_REG_TCLKTRAIL, 0x0037 },
246 { IMX334_REG_TCLKZERO, 0xf7 },
247 { IMX334_REG_THSPREPARE, 0x002f },
248 { CCI_REG8(0x3078), 0x02 },
249 { CCI_REG8(0x3079), 0x00 },
250 { CCI_REG8(0x307a), 0x00 },
251 { CCI_REG8(0x307b), 0x00 },
252 { CCI_REG8(0x3080), 0x02 },
253 { CCI_REG8(0x3081), 0x00 },
254 { CCI_REG8(0x3082), 0x00 },
255 { CCI_REG8(0x3083), 0x00 },
256 { CCI_REG8(0x3088), 0x02 },
257 { CCI_REG8(0x3094), 0x00 },
258 { CCI_REG8(0x3095), 0x00 },
259 { CCI_REG8(0x3096), 0x00 },
260 { CCI_REG8(0x309b), 0x02 },
261 { CCI_REG8(0x309c), 0x00 },
262 { CCI_REG8(0x309d), 0x00 },
263 { CCI_REG8(0x309e), 0x00 },
264 { CCI_REG8(0x30a4), 0x00 },
265 { CCI_REG8(0x30a5), 0x00 },
266 { CCI_REG8(0x3288), 0x21 },
267 { CCI_REG8(0x328a), 0x02 },
268 { CCI_REG8(0x3414), 0x05 },
269 { CCI_REG8(0x3416), 0x18 },
270 { CCI_REG8(0x35Ac), 0x0e },
271 { CCI_REG8(0x3648), 0x01 },
272 { CCI_REG8(0x364a), 0x04 },
273 { CCI_REG8(0x364c), 0x04 },
274 { CCI_REG8(0x3678), 0x01 },
275 { CCI_REG8(0x367c), 0x31 },
276 { CCI_REG8(0x367e), 0x31 },
277 { CCI_REG8(0x3708), 0x02 },
278 { CCI_REG8(0x3714), 0x01 },
279 { CCI_REG8(0x3715), 0x02 },
280 { CCI_REG8(0x3716), 0x02 },
281 { CCI_REG8(0x3717), 0x02 },
282 { CCI_REG8(0x371c), 0x3d },
283 { CCI_REG8(0x371d), 0x3f },
284 { CCI_REG8(0x372c), 0x00 },
285 { CCI_REG8(0x372d), 0x00 },
286 { CCI_REG8(0x372e), 0x46 },
287 { CCI_REG8(0x372f), 0x00 },
288 { CCI_REG8(0x3730), 0x89 },
289 { CCI_REG8(0x3731), 0x00 },
290 { CCI_REG8(0x3732), 0x08 },
291 { CCI_REG8(0x3733), 0x01 },
292 { CCI_REG8(0x3734), 0xfe },
293 { CCI_REG8(0x3735), 0x05 },
294 { CCI_REG8(0x375d), 0x00 },
295 { CCI_REG8(0x375e), 0x00 },
296 { CCI_REG8(0x375f), 0x61 },
297 { CCI_REG8(0x3760), 0x06 },
298 { CCI_REG8(0x3768), 0x1b },
299 { CCI_REG8(0x3769), 0x1b },
300 { CCI_REG8(0x376a), 0x1a },
301 { CCI_REG8(0x376b), 0x19 },
302 { CCI_REG8(0x376c), 0x18 },
303 { CCI_REG8(0x376d), 0x14 },
304 { CCI_REG8(0x376e), 0x0f },
305 { CCI_REG8(0x3776), 0x00 },
306 { CCI_REG8(0x3777), 0x00 },
307 { CCI_REG8(0x3778), 0x46 },
308 { CCI_REG8(0x3779), 0x00 },
309 { CCI_REG8(0x377a), 0x08 },
310 { CCI_REG8(0x377b), 0x01 },
311 { CCI_REG8(0x377c), 0x45 },
312 { CCI_REG8(0x377d), 0x01 },
313 { CCI_REG8(0x377e), 0x23 },
314 { CCI_REG8(0x377f), 0x02 },
315 { CCI_REG8(0x3780), 0xd9 },
316 { CCI_REG8(0x3781), 0x03 },
317 { CCI_REG8(0x3782), 0xf5 },
318 { CCI_REG8(0x3783), 0x06 },
319 { CCI_REG8(0x3784), 0xa5 },
320 { CCI_REG8(0x3788), 0x0f },
321 { CCI_REG8(0x378a), 0xd9 },
322 { CCI_REG8(0x378b), 0x03 },
323 { CCI_REG8(0x378c), 0xeb },
324 { CCI_REG8(0x378d), 0x05 },
325 { CCI_REG8(0x378e), 0x87 },
326 { CCI_REG8(0x378f), 0x06 },
327 { CCI_REG8(0x3790), 0xf5 },
328 { CCI_REG8(0x3792), 0x43 },
329 { CCI_REG8(0x3794), 0x7a },
330 { CCI_REG8(0x3796), 0xa1 },
331 { CCI_REG8(0x37b0), 0x37 },
332 { CCI_REG8(0x3e04), 0x0e },
333 { IMX334_REG_AGAIN, 0x0050 },
334 { IMX334_REG_MASTER_MODE, 0x00 },
335};
336
337/* Sensor mode registers for 640x480@30fps */
338static const struct cci_reg_sequence mode_640x480_regs[] = {
339 { IMX334_REG_HTRIMMING_START, 0x0670 },
340 { IMX334_REG_HNUM, 0x0280 },
341 { IMX334_REG_AREA3_ST_ADR_1, 0x0748 },
342 { IMX334_REG_AREA3_ST_ADR_2, 0x0749 },
343 { IMX334_REG_AREA3_WIDTH_1, 0x01e0 },
344 { IMX334_REG_AREA3_WIDTH_2, 0x01e0 },
345 { IMX334_REG_Y_OUT_SIZE, 0x01e0 },
346 { IMX334_REG_UNREAD_ED_ADR, 0x0b30 },
347};
348
349/* Sensor mode registers for 1280x720@30fps */
350static const struct cci_reg_sequence mode_1280x720_regs[] = {
351 { IMX334_REG_HTRIMMING_START, 0x0530 },
352 { IMX334_REG_HNUM, 0x0500 },
353 { IMX334_REG_AREA3_ST_ADR_1, 0x0384 },
354 { IMX334_REG_AREA3_ST_ADR_2, 0x0385 },
355 { IMX334_REG_AREA3_WIDTH_1, 0x02d0 },
356 { IMX334_REG_AREA3_WIDTH_2, 0x02d0 },
357 { IMX334_REG_Y_OUT_SIZE, 0x02d0 },
358 { IMX334_REG_UNREAD_ED_ADR, 0x0b30 },
359};
360
361/* Sensor mode registers for 1920x1080@30fps */
362static const struct cci_reg_sequence mode_1920x1080_regs[] = {
363 { IMX334_REG_HTRIMMING_START, 0x03f0 },
364 { IMX334_REG_HNUM, 0x0780 },
365 { IMX334_REG_AREA3_ST_ADR_1, 0x02cc },
366 { IMX334_REG_AREA3_ST_ADR_2, 0x02cd },
367 { IMX334_REG_AREA3_WIDTH_1, 0x0438 },
368 { IMX334_REG_AREA3_WIDTH_2, 0x0438 },
369 { IMX334_REG_Y_OUT_SIZE, 0x0438 },
370 { IMX334_REG_UNREAD_ED_ADR, 0x0a18 },
371};
372
373/* Sensor mode registers for 3840x2160@30fps */
374static const struct cci_reg_sequence mode_3840x2160_regs[] = {
375 { IMX334_REG_HMAX, 0x0226 },
376 { IMX334_REG_INCKSEL2, 0x02 },
377 { IMX334_REG_HTRIMMING_START, 0x003c },
378 { IMX334_REG_HNUM, 0x0f00 },
379 { IMX334_REG_AREA3_ST_ADR_1, 0x00b0 },
380 { IMX334_REG_AREA3_ST_ADR_2, 0x00b1 },
381 { IMX334_REG_UNREAD_ED_ADR, 0x1220 },
382 { IMX334_REG_AREA3_WIDTH_1, 0x0870 },
383 { IMX334_REG_AREA3_WIDTH_2, 0x0870 },
384 { IMX334_REG_Y_OUT_SIZE, 0x0870 },
385 { IMX334_REG_SYS_MODE, 0x0100 },
386 { IMX334_REG_TCLKPOST, 0x00bf },
387 { IMX334_REG_TCLKPREPARE, 0x0067 },
388 { IMX334_REG_TCLKTRAIL, 0x006f },
389 { IMX334_REG_TCLKZERO, 0x1d7 },
390 { IMX334_REG_THSPREPARE, 0x006f },
391 { IMX334_REG_THSZERO, 0x00cf },
392 { IMX334_REG_THSTRAIL, 0x006f },
393 { IMX334_REG_THSEXIT, 0x00b7 },
394 { IMX334_REG_TPLX, 0x005f },
395};
396
397static const char * const imx334_test_pattern_menu[] = {
398 "Disabled",
399 "Vertical Color Bars",
400 "Horizontal Color Bars",
401};
402
403static const int imx334_test_pattern_val[] = {
404 IMX334_TP_DISABLE,
405 IMX334_TP_COLOR_HBARS,
406 IMX334_TP_COLOR_VBARS,
407};
408
409static const struct cci_reg_sequence raw10_framefmt_regs[] = {
410 { IMX334_REG_ADBIT, 0x00 },
411 { IMX334_REG_MDBIT, 0x00 },
412 { IMX334_REG_ADBIT1, 0x01ff },
413};
414
415static const struct cci_reg_sequence raw12_framefmt_regs[] = {
416 { IMX334_REG_ADBIT, 0x01 },
417 { IMX334_REG_MDBIT, 0x01 },
418 { IMX334_REG_ADBIT1, 0x0047 },
419};
420
421static const u32 imx334_mbus_codes[] = {
422 MEDIA_BUS_FMT_SRGGB12_1X12,
423 MEDIA_BUS_FMT_SRGGB10_1X10,
424};
425
426/* Supported sensor mode configurations */
427static const struct imx334_mode supported_modes[] = {
428 {
429 .width = 3840,
430 .height = 2160,
431 .hblank = 560,
432 .vblank = 2340,
433 .vblank_min = 90,
434 .vblank_max = 132840,
435 .pclk = 594000000,
436 .link_freq_idx = 0,
437 .reg_list = {
438 .num_of_regs = ARRAY_SIZE(mode_3840x2160_regs),
439 .regs = mode_3840x2160_regs,
440 },
441 }, {
442 .width = 1920,
443 .height = 1080,
444 .hblank = 2480,
445 .vblank = 1170,
446 .vblank_min = 45,
447 .vblank_max = 132840,
448 .pclk = 297000000,
449 .link_freq_idx = 1,
450 .reg_list = {
451 .num_of_regs = ARRAY_SIZE(mode_1920x1080_regs),
452 .regs = mode_1920x1080_regs,
453 },
454 }, {
455 .width = 1280,
456 .height = 720,
457 .hblank = 2480,
458 .vblank = 1170,
459 .vblank_min = 45,
460 .vblank_max = 132840,
461 .pclk = 297000000,
462 .link_freq_idx = 1,
463 .reg_list = {
464 .num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
465 .regs = mode_1280x720_regs,
466 },
467 }, {
468 .width = 640,
469 .height = 480,
470 .hblank = 2480,
471 .vblank = 1170,
472 .vblank_min = 45,
473 .vblank_max = 132840,
474 .pclk = 297000000,
475 .link_freq_idx = 1,
476 .reg_list = {
477 .num_of_regs = ARRAY_SIZE(mode_640x480_regs),
478 .regs = mode_640x480_regs,
479 },
480 },
481};
482
483/**
484 * to_imx334() - imv334 V4L2 sub-device to imx334 device.
485 * @subdev: pointer to imx334 V4L2 sub-device
486 *
487 * Return: pointer to imx334 device
488 */
489static inline struct imx334 *to_imx334(struct v4l2_subdev *subdev)
490{
491 return container_of(subdev, struct imx334, sd);
492}
493
494/**
495 * imx334_update_controls() - Update control ranges based on streaming mode
496 * @imx334: pointer to imx334 device
497 * @mode: pointer to imx334_mode sensor mode
498 *
499 * Return: 0 if successful, error code otherwise.
500 */
501static int imx334_update_controls(struct imx334 *imx334,
502 const struct imx334_mode *mode)
503{
504 int ret;
505
506 ret = __v4l2_ctrl_s_ctrl(ctrl: imx334->link_freq_ctrl, val: mode->link_freq_idx);
507 if (ret)
508 return ret;
509
510 ret = __v4l2_ctrl_modify_range(ctrl: imx334->pclk_ctrl, min: mode->pclk,
511 max: mode->pclk, step: 1, def: mode->pclk);
512 if (ret)
513 return ret;
514
515 ret = __v4l2_ctrl_modify_range(ctrl: imx334->hblank_ctrl, min: mode->hblank,
516 max: mode->hblank, step: 1, def: mode->hblank);
517 if (ret)
518 return ret;
519
520 ret = __v4l2_ctrl_modify_range(ctrl: imx334->vblank_ctrl, min: mode->vblank_min,
521 max: mode->vblank_max, step: 1, def: mode->vblank);
522 if (ret)
523 return ret;
524
525 return __v4l2_ctrl_s_ctrl(ctrl: imx334->vblank_ctrl, val: mode->vblank);
526}
527
528/**
529 * imx334_update_exp_gain() - Set updated exposure and gain
530 * @imx334: pointer to imx334 device
531 * @exposure: updated exposure value
532 * @gain: updated analog gain value
533 *
534 * Return: 0 if successful, error code otherwise.
535 */
536static int imx334_update_exp_gain(struct imx334 *imx334, u32 exposure, u32 gain)
537{
538 u32 lpfr, shutter;
539 int ret_hold;
540 int ret = 0;
541
542 lpfr = imx334->vblank + imx334->cur_mode->height;
543 shutter = lpfr - exposure;
544
545 dev_dbg(imx334->dev, "Set long exp %u analog gain %u sh0 %u lpfr %u\n",
546 exposure, gain, shutter, lpfr);
547
548 cci_write(map: imx334->cci, IMX334_REG_HOLD, val: 1, err: &ret);
549 cci_write(map: imx334->cci, IMX334_REG_VMAX, val: lpfr, err: &ret);
550 cci_write(map: imx334->cci, IMX334_REG_SHUTTER, val: shutter, err: &ret);
551 cci_write(map: imx334->cci, IMX334_REG_AGAIN, val: gain, err: &ret);
552
553 ret_hold = cci_write(map: imx334->cci, IMX334_REG_HOLD, val: 0, NULL);
554 if (ret_hold)
555 return ret_hold;
556
557 return ret;
558}
559
560/**
561 * imx334_set_ctrl() - Set subdevice control
562 * @ctrl: pointer to v4l2_ctrl structure
563 *
564 * Supported controls:
565 * - V4L2_CID_VBLANK
566 * - cluster controls:
567 * - V4L2_CID_ANALOGUE_GAIN
568 * - V4L2_CID_EXPOSURE
569 *
570 * Return: 0 if successful, error code otherwise.
571 */
572static int imx334_set_ctrl(struct v4l2_ctrl *ctrl)
573{
574 struct imx334 *imx334 =
575 container_of(ctrl->handler, struct imx334, ctrl_handler);
576 u32 analog_gain;
577 u32 exposure;
578 int ret;
579
580 if (ctrl->id == V4L2_CID_VBLANK) {
581 imx334->vblank = imx334->vblank_ctrl->val;
582
583 dev_dbg(imx334->dev, "Received vblank %u, new lpfr %u\n",
584 imx334->vblank,
585 imx334->vblank + imx334->cur_mode->height);
586
587 ret = __v4l2_ctrl_modify_range(ctrl: imx334->exp_ctrl,
588 IMX334_EXPOSURE_MIN,
589 max: imx334->vblank +
590 imx334->cur_mode->height -
591 IMX334_EXPOSURE_OFFSET,
592 step: 1, IMX334_EXPOSURE_DEFAULT);
593 if (ret)
594 return ret;
595 }
596
597 /* Set controls only if sensor is in power on state */
598 if (!pm_runtime_get_if_in_use(dev: imx334->dev))
599 return 0;
600
601 switch (ctrl->id) {
602 case V4L2_CID_VBLANK:
603 exposure = imx334->exp_ctrl->val;
604 analog_gain = imx334->again_ctrl->val;
605
606 ret = imx334_update_exp_gain(imx334, exposure, gain: analog_gain);
607
608 break;
609 case V4L2_CID_EXPOSURE:
610
611 exposure = ctrl->val;
612 analog_gain = imx334->again_ctrl->val;
613
614 dev_dbg(imx334->dev, "Received exp %u analog gain %u\n",
615 exposure, analog_gain);
616
617 ret = imx334_update_exp_gain(imx334, exposure, gain: analog_gain);
618
619 break;
620 case V4L2_CID_PIXEL_RATE:
621 case V4L2_CID_LINK_FREQ:
622 case V4L2_CID_HBLANK:
623 ret = 0;
624 break;
625 case V4L2_CID_TEST_PATTERN:
626 if (ctrl->val) {
627 cci_write(map: imx334->cci, IMX334_TP_CLK_EN,
628 IMX334_TP_CLK_EN_VAL, NULL);
629 cci_write(map: imx334->cci, IMX334_DIG_CLP_MODE, val: 0x0, NULL);
630 cci_write(map: imx334->cci, IMX334_TPG_COLORW,
631 IMX334_TPG_COLORW_120P, NULL);
632 cci_write(map: imx334->cci, IMX334_REG_TP,
633 val: imx334_test_pattern_val[ctrl->val], NULL);
634 cci_write(map: imx334->cci, IMX334_TPG_EN_DOUT,
635 IMX334_TP_ENABLE, NULL);
636 } else {
637 cci_write(map: imx334->cci, IMX334_DIG_CLP_MODE, val: 0x1, NULL);
638 cci_write(map: imx334->cci, IMX334_TP_CLK_EN,
639 IMX334_TP_CLK_DIS_VAL, NULL);
640 cci_write(map: imx334->cci, IMX334_TPG_EN_DOUT,
641 IMX334_TP_DISABLE, NULL);
642 }
643 ret = 0;
644 break;
645 default:
646 dev_err(imx334->dev, "Invalid control %d\n", ctrl->id);
647 ret = -EINVAL;
648 }
649
650 pm_runtime_put(dev: imx334->dev);
651
652 return ret;
653}
654
655/* V4l2 subdevice control ops*/
656static const struct v4l2_ctrl_ops imx334_ctrl_ops = {
657 .s_ctrl = imx334_set_ctrl,
658};
659
660static int imx334_get_format_code(struct imx334 *imx334, u32 code)
661{
662 unsigned int i;
663
664 for (i = 0; i < ARRAY_SIZE(imx334_mbus_codes); i++) {
665 if (imx334_mbus_codes[i] == code)
666 return imx334_mbus_codes[i];
667 }
668
669 return imx334_mbus_codes[0];
670}
671
672/**
673 * imx334_enum_mbus_code() - Enumerate V4L2 sub-device mbus codes
674 * @sd: pointer to imx334 V4L2 sub-device structure
675 * @sd_state: V4L2 sub-device state
676 * @code: V4L2 sub-device code enumeration need to be filled
677 *
678 * Return: 0 if successful, error code otherwise.
679 */
680static int imx334_enum_mbus_code(struct v4l2_subdev *sd,
681 struct v4l2_subdev_state *sd_state,
682 struct v4l2_subdev_mbus_code_enum *code)
683{
684 if (code->index >= ARRAY_SIZE(imx334_mbus_codes))
685 return -EINVAL;
686
687 code->code = imx334_mbus_codes[code->index];
688
689 return 0;
690}
691
692/**
693 * imx334_enum_frame_size() - Enumerate V4L2 sub-device frame sizes
694 * @sd: pointer to imx334 V4L2 sub-device structure
695 * @sd_state: V4L2 sub-device state
696 * @fsize: V4L2 sub-device size enumeration need to be filled
697 *
698 * Return: 0 if successful, error code otherwise.
699 */
700static int imx334_enum_frame_size(struct v4l2_subdev *sd,
701 struct v4l2_subdev_state *sd_state,
702 struct v4l2_subdev_frame_size_enum *fsize)
703{
704 struct imx334 *imx334 = to_imx334(subdev: sd);
705 u32 code;
706
707 if (fsize->index >= ARRAY_SIZE(supported_modes))
708 return -EINVAL;
709
710 code = imx334_get_format_code(imx334, code: fsize->code);
711
712 if (fsize->code != code)
713 return -EINVAL;
714
715 fsize->min_width = supported_modes[fsize->index].width;
716 fsize->max_width = fsize->min_width;
717 fsize->min_height = supported_modes[fsize->index].height;
718 fsize->max_height = fsize->min_height;
719
720 return 0;
721}
722
723/**
724 * imx334_fill_pad_format() - Fill subdevice pad format
725 * from selected sensor mode
726 * @imx334: pointer to imx334 device
727 * @mode: pointer to imx334_mode sensor mode
728 * @fmt: V4L2 sub-device format need to be filled
729 */
730static void imx334_fill_pad_format(struct imx334 *imx334,
731 const struct imx334_mode *mode,
732 struct v4l2_subdev_format *fmt)
733{
734 fmt->format.width = mode->width;
735 fmt->format.height = mode->height;
736 fmt->format.field = V4L2_FIELD_NONE;
737 fmt->format.colorspace = V4L2_COLORSPACE_RAW;
738 fmt->format.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
739 fmt->format.quantization = V4L2_QUANTIZATION_DEFAULT;
740 fmt->format.xfer_func = V4L2_XFER_FUNC_NONE;
741}
742
743/**
744 * imx334_get_pad_format() - Get subdevice pad format
745 * @sd: pointer to imx334 V4L2 sub-device structure
746 * @sd_state: V4L2 sub-device state
747 * @fmt: V4L2 sub-device format need to be set
748 *
749 * Return: 0 if successful, error code otherwise.
750 */
751static int imx334_get_pad_format(struct v4l2_subdev *sd,
752 struct v4l2_subdev_state *sd_state,
753 struct v4l2_subdev_format *fmt)
754{
755 struct imx334 *imx334 = to_imx334(subdev: sd);
756
757 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
758 struct v4l2_mbus_framefmt *framefmt;
759
760 framefmt = v4l2_subdev_state_get_format(sd_state, fmt->pad);
761 fmt->format = *framefmt;
762 } else {
763 fmt->format.code = imx334->cur_code;
764 imx334_fill_pad_format(imx334, mode: imx334->cur_mode, fmt);
765 }
766
767 return 0;
768}
769
770/**
771 * imx334_set_pad_format() - Set subdevice pad format
772 * @sd: pointer to imx334 V4L2 sub-device structure
773 * @sd_state: V4L2 sub-device state
774 * @fmt: V4L2 sub-device format need to be set
775 *
776 * Return: 0 if successful, error code otherwise.
777 */
778static int imx334_set_pad_format(struct v4l2_subdev *sd,
779 struct v4l2_subdev_state *sd_state,
780 struct v4l2_subdev_format *fmt)
781{
782 struct imx334 *imx334 = to_imx334(subdev: sd);
783 const struct imx334_mode *mode;
784 int ret = 0;
785
786 mode = v4l2_find_nearest_size(supported_modes,
787 ARRAY_SIZE(supported_modes),
788 width, height,
789 fmt->format.width, fmt->format.height);
790
791 imx334_fill_pad_format(imx334, mode, fmt);
792 fmt->format.code = imx334_get_format_code(imx334, code: fmt->format.code);
793
794 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
795 struct v4l2_mbus_framefmt *framefmt;
796
797 framefmt = v4l2_subdev_state_get_format(sd_state, fmt->pad);
798 *framefmt = fmt->format;
799 } else if (imx334->cur_mode != mode || imx334->cur_code != fmt->format.code) {
800 imx334->cur_code = fmt->format.code;
801 ret = imx334_update_controls(imx334, mode);
802 if (!ret)
803 imx334->cur_mode = mode;
804 }
805
806 return ret;
807}
808
809/**
810 * imx334_init_state() - Initialize sub-device state
811 * @sd: pointer to imx334 V4L2 sub-device structure
812 * @sd_state: V4L2 sub-device state
813 *
814 * Return: 0 if successful, error code otherwise.
815 */
816static int imx334_init_state(struct v4l2_subdev *sd,
817 struct v4l2_subdev_state *sd_state)
818{
819 struct imx334 *imx334 = to_imx334(subdev: sd);
820 struct v4l2_subdev_format fmt = { 0 };
821
822 fmt.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
823
824 imx334_fill_pad_format(imx334, mode: imx334->cur_mode, fmt: &fmt);
825
826 __v4l2_ctrl_modify_range(ctrl: imx334->link_freq_ctrl, min: 0,
827 max: __fls(word: imx334->link_freq_bitmap),
828 step: ~(imx334->link_freq_bitmap),
829 __ffs(imx334->link_freq_bitmap));
830
831 return imx334_set_pad_format(sd, sd_state, fmt: &fmt);
832}
833
834static int imx334_set_framefmt(struct imx334 *imx334)
835{
836 switch (imx334->cur_code) {
837 case MEDIA_BUS_FMT_SRGGB10_1X10:
838 return cci_multi_reg_write(map: imx334->cci, regs: raw10_framefmt_regs,
839 ARRAY_SIZE(raw10_framefmt_regs), NULL);
840
841
842 case MEDIA_BUS_FMT_SRGGB12_1X12:
843 return cci_multi_reg_write(map: imx334->cci, regs: raw12_framefmt_regs,
844 ARRAY_SIZE(raw12_framefmt_regs), NULL);
845 }
846
847 return -EINVAL;
848}
849
850/**
851 * imx334_enable_streams() - Enable specified streams for the sensor
852 * @sd: pointer to the V4L2 subdevice
853 * @state: pointer to the subdevice state
854 * @pad: pad number for which streams are enabled
855 * @streams_mask: bitmask specifying the streams to enable
856 *
857 * Return: 0 if successful, error code otherwise.
858 */
859static int imx334_enable_streams(struct v4l2_subdev *sd,
860 struct v4l2_subdev_state *state, u32 pad,
861 u64 streams_mask)
862{
863 struct imx334 *imx334 = to_imx334(subdev: sd);
864 const struct imx334_reg_list *reg_list;
865 int ret;
866
867 ret = pm_runtime_resume_and_get(dev: imx334->dev);
868 if (ret < 0)
869 return ret;
870
871 ret = cci_multi_reg_write(map: imx334->cci, regs: common_mode_regs,
872 ARRAY_SIZE(common_mode_regs), NULL);
873 if (ret) {
874 dev_err(imx334->dev, "fail to write common registers\n");
875 goto err_rpm_put;
876 }
877
878 /* Write sensor mode registers */
879 reg_list = &imx334->cur_mode->reg_list;
880 ret = cci_multi_reg_write(map: imx334->cci, regs: reg_list->regs,
881 num_regs: reg_list->num_of_regs, NULL);
882 if (ret) {
883 dev_err(imx334->dev, "fail to write initial registers\n");
884 goto err_rpm_put;
885 }
886
887 ret = cci_write(map: imx334->cci, IMX334_REG_LANEMODE,
888 IMX334_CSI_4_LANE_MODE, NULL);
889 if (ret) {
890 dev_err(imx334->dev, "failed to configure lanes\n");
891 goto err_rpm_put;
892 }
893
894 ret = imx334_set_framefmt(imx334);
895 if (ret) {
896 dev_err(imx334->dev, "%s failed to set frame format: %d\n",
897 __func__, ret);
898 goto err_rpm_put;
899 }
900
901 /* Setup handler will write actual exposure and gain */
902 ret = __v4l2_ctrl_handler_setup(hdl: imx334->sd.ctrl_handler);
903 if (ret) {
904 dev_err(imx334->dev, "fail to setup handler\n");
905 goto err_rpm_put;
906 }
907
908 /* Start streaming */
909 ret = cci_write(map: imx334->cci, IMX334_REG_MODE_SELECT,
910 IMX334_MODE_STREAMING, NULL);
911 if (ret) {
912 dev_err(imx334->dev, "fail to start streaming\n");
913 goto err_rpm_put;
914 }
915
916 return 0;
917
918err_rpm_put:
919 pm_runtime_put(dev: imx334->dev);
920 return ret;
921}
922
923/**
924 * imx334_disable_streams() - Enable specified streams for the sensor
925 * @sd: pointer to the V4L2 subdevice
926 * @state: pointer to the subdevice state
927 * @pad: pad number for which streams are disabled
928 * @streams_mask: bitmask specifying the streams to disable
929 *
930 * Return: 0 if successful, error code otherwise.
931 */
932static int imx334_disable_streams(struct v4l2_subdev *sd,
933 struct v4l2_subdev_state *state, u32 pad,
934 u64 streams_mask)
935{
936 struct imx334 *imx334 = to_imx334(subdev: sd);
937 int ret;
938
939 ret = cci_write(map: imx334->cci, IMX334_REG_MODE_SELECT,
940 IMX334_MODE_STANDBY, NULL);
941 if (ret)
942 dev_err(imx334->dev, "%s failed to stop stream\n", __func__);
943
944 pm_runtime_put(dev: imx334->dev);
945
946 return ret;
947}
948
949/**
950 * imx334_detect() - Detect imx334 sensor
951 * @imx334: pointer to imx334 device
952 *
953 * Return: 0 if successful, -EIO if sensor id does not match
954 */
955static int imx334_detect(struct imx334 *imx334)
956{
957 int ret;
958 u64 val;
959
960 ret = cci_read(map: imx334->cci, IMX334_REG_ID, val: &val, NULL);
961 if (ret)
962 return ret;
963
964 if (val != IMX334_ID) {
965 dev_err(imx334->dev, "chip id mismatch: %x!=%llx\n",
966 IMX334_ID, val);
967 return -ENXIO;
968 }
969
970 return 0;
971}
972
973/**
974 * imx334_parse_hw_config() - Parse HW configuration and check if supported
975 * @imx334: pointer to imx334 device
976 *
977 * Return: 0 if successful, error code otherwise.
978 */
979static int imx334_parse_hw_config(struct imx334 *imx334)
980{
981 struct fwnode_handle *fwnode = dev_fwnode(imx334->dev);
982 struct v4l2_fwnode_endpoint bus_cfg = {
983 .bus_type = V4L2_MBUS_CSI2_DPHY
984 };
985 struct fwnode_handle *ep;
986 unsigned long rate;
987 int ret;
988
989 if (!fwnode)
990 return -ENXIO;
991
992 /* Request optional reset pin */
993 imx334->reset_gpio = devm_gpiod_get_optional(dev: imx334->dev, con_id: "reset",
994 flags: GPIOD_OUT_LOW);
995 if (IS_ERR(ptr: imx334->reset_gpio))
996 return dev_err_probe(dev: imx334->dev, err: PTR_ERR(ptr: imx334->reset_gpio),
997 fmt: "failed to get reset gpio\n");
998
999 /* Get sensor input clock */
1000 imx334->inclk = devm_clk_get(dev: imx334->dev, NULL);
1001 if (IS_ERR(ptr: imx334->inclk))
1002 return dev_err_probe(dev: imx334->dev, err: PTR_ERR(ptr: imx334->inclk),
1003 fmt: "could not get inclk\n");
1004
1005 rate = clk_get_rate(clk: imx334->inclk);
1006 if (rate != IMX334_INCLK_RATE)
1007 return dev_err_probe(dev: imx334->dev, err: -EINVAL,
1008 fmt: "inclk frequency mismatch\n");
1009
1010 ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
1011 if (!ep)
1012 return -ENXIO;
1013
1014 ret = v4l2_fwnode_endpoint_alloc_parse(fwnode: ep, vep: &bus_cfg);
1015 fwnode_handle_put(fwnode: ep);
1016 if (ret)
1017 return ret;
1018
1019 if (bus_cfg.bus.mipi_csi2.num_data_lanes != IMX334_NUM_DATA_LANES) {
1020 dev_err(imx334->dev,
1021 "number of CSI2 data lanes %d is not supported\n",
1022 bus_cfg.bus.mipi_csi2.num_data_lanes);
1023 ret = -EINVAL;
1024 goto done_endpoint_free;
1025 }
1026
1027 ret = v4l2_link_freq_to_bitmap(dev: imx334->dev, fw_link_freqs: bus_cfg.link_frequencies,
1028 num_of_fw_link_freqs: bus_cfg.nr_of_link_frequencies,
1029 driver_link_freqs: link_freq, ARRAY_SIZE(link_freq),
1030 bitmap: &imx334->link_freq_bitmap);
1031
1032done_endpoint_free:
1033 v4l2_fwnode_endpoint_free(vep: &bus_cfg);
1034
1035 return ret;
1036}
1037
1038/* V4l2 subdevice ops */
1039static const struct v4l2_subdev_video_ops imx334_video_ops = {
1040 .s_stream = v4l2_subdev_s_stream_helper,
1041};
1042
1043static const struct v4l2_subdev_pad_ops imx334_pad_ops = {
1044 .enum_mbus_code = imx334_enum_mbus_code,
1045 .enum_frame_size = imx334_enum_frame_size,
1046 .get_fmt = imx334_get_pad_format,
1047 .set_fmt = imx334_set_pad_format,
1048 .enable_streams = imx334_enable_streams,
1049 .disable_streams = imx334_disable_streams,
1050};
1051
1052static const struct v4l2_subdev_ops imx334_subdev_ops = {
1053 .video = &imx334_video_ops,
1054 .pad = &imx334_pad_ops,
1055};
1056
1057static const struct v4l2_subdev_internal_ops imx334_internal_ops = {
1058 .init_state = imx334_init_state,
1059};
1060
1061/**
1062 * imx334_power_on() - Sensor power on sequence
1063 * @dev: pointer to i2c device
1064 *
1065 * Return: 0 if successful, error code otherwise.
1066 */
1067static int imx334_power_on(struct device *dev)
1068{
1069 struct v4l2_subdev *sd = dev_get_drvdata(dev);
1070 struct imx334 *imx334 = to_imx334(subdev: sd);
1071 int ret;
1072
1073 gpiod_set_value_cansleep(desc: imx334->reset_gpio, value: 1);
1074
1075 ret = clk_prepare_enable(clk: imx334->inclk);
1076 if (ret) {
1077 dev_err(imx334->dev, "fail to enable inclk\n");
1078 goto error_reset;
1079 }
1080
1081 usleep_range(min: 18000, max: 20000);
1082
1083 return 0;
1084
1085error_reset:
1086 gpiod_set_value_cansleep(desc: imx334->reset_gpio, value: 0);
1087
1088 return ret;
1089}
1090
1091/**
1092 * imx334_power_off() - Sensor power off sequence
1093 * @dev: pointer to i2c device
1094 *
1095 * Return: 0 if successful, error code otherwise.
1096 */
1097static int imx334_power_off(struct device *dev)
1098{
1099 struct v4l2_subdev *sd = dev_get_drvdata(dev);
1100 struct imx334 *imx334 = to_imx334(subdev: sd);
1101
1102 gpiod_set_value_cansleep(desc: imx334->reset_gpio, value: 0);
1103
1104 clk_disable_unprepare(clk: imx334->inclk);
1105
1106 return 0;
1107}
1108
1109/**
1110 * imx334_init_controls() - Initialize sensor subdevice controls
1111 * @imx334: pointer to imx334 device
1112 *
1113 * Return: 0 if successful, error code otherwise.
1114 */
1115static int imx334_init_controls(struct imx334 *imx334)
1116{
1117 struct v4l2_ctrl_handler *ctrl_hdlr = &imx334->ctrl_handler;
1118 const struct imx334_mode *mode = imx334->cur_mode;
1119 u32 lpfr;
1120 int ret;
1121
1122 ret = v4l2_ctrl_handler_init(ctrl_hdlr, 7);
1123 if (ret)
1124 return ret;
1125
1126 /* Initialize exposure and gain */
1127 lpfr = mode->vblank + mode->height;
1128 imx334->exp_ctrl = v4l2_ctrl_new_std(hdl: ctrl_hdlr,
1129 ops: &imx334_ctrl_ops,
1130 V4L2_CID_EXPOSURE,
1131 IMX334_EXPOSURE_MIN,
1132 max: lpfr - IMX334_EXPOSURE_OFFSET,
1133 IMX334_EXPOSURE_STEP,
1134 IMX334_EXPOSURE_DEFAULT);
1135
1136 imx334->again_ctrl = v4l2_ctrl_new_std(hdl: ctrl_hdlr,
1137 ops: &imx334_ctrl_ops,
1138 V4L2_CID_ANALOGUE_GAIN,
1139 IMX334_AGAIN_MIN,
1140 IMX334_AGAIN_MAX,
1141 IMX334_AGAIN_STEP,
1142 IMX334_AGAIN_DEFAULT);
1143
1144 v4l2_ctrl_cluster(ncontrols: 2, controls: &imx334->exp_ctrl);
1145
1146 imx334->vblank_ctrl = v4l2_ctrl_new_std(hdl: ctrl_hdlr,
1147 ops: &imx334_ctrl_ops,
1148 V4L2_CID_VBLANK,
1149 min: mode->vblank_min,
1150 max: mode->vblank_max,
1151 step: 1, def: mode->vblank);
1152
1153 /* Read only controls */
1154 imx334->pclk_ctrl = v4l2_ctrl_new_std(hdl: ctrl_hdlr,
1155 ops: &imx334_ctrl_ops,
1156 V4L2_CID_PIXEL_RATE,
1157 min: mode->pclk, max: mode->pclk,
1158 step: 1, def: mode->pclk);
1159
1160 imx334->link_freq_ctrl = v4l2_ctrl_new_int_menu(hdl: ctrl_hdlr,
1161 ops: &imx334_ctrl_ops,
1162 V4L2_CID_LINK_FREQ,
1163 max: __fls(word: imx334->link_freq_bitmap),
1164 __ffs(imx334->link_freq_bitmap),
1165 qmenu_int: link_freq);
1166
1167 if (imx334->link_freq_ctrl)
1168 imx334->link_freq_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1169
1170 imx334->hblank_ctrl = v4l2_ctrl_new_std(hdl: ctrl_hdlr,
1171 ops: &imx334_ctrl_ops,
1172 V4L2_CID_HBLANK,
1173 IMX334_REG_MIN,
1174 IMX334_REG_MAX,
1175 step: 1, def: mode->hblank);
1176 if (imx334->hblank_ctrl)
1177 imx334->hblank_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1178
1179 v4l2_ctrl_new_std_menu_items(hdl: ctrl_hdlr, ops: &imx334_ctrl_ops,
1180 V4L2_CID_TEST_PATTERN,
1181 ARRAY_SIZE(imx334_test_pattern_menu) - 1,
1182 mask: 0, def: 0, qmenu: imx334_test_pattern_menu);
1183
1184 if (ctrl_hdlr->error) {
1185 dev_err(imx334->dev, "control init failed: %d",
1186 ctrl_hdlr->error);
1187 v4l2_ctrl_handler_free(hdl: ctrl_hdlr);
1188 return ctrl_hdlr->error;
1189 }
1190
1191 imx334->sd.ctrl_handler = ctrl_hdlr;
1192
1193 return 0;
1194}
1195
1196/**
1197 * imx334_probe() - I2C client device binding
1198 * @client: pointer to i2c client device
1199 *
1200 * Return: 0 if successful, error code otherwise.
1201 */
1202static int imx334_probe(struct i2c_client *client)
1203{
1204 struct imx334 *imx334;
1205 int ret;
1206
1207 imx334 = devm_kzalloc(dev: &client->dev, size: sizeof(*imx334), GFP_KERNEL);
1208 if (!imx334)
1209 return -ENOMEM;
1210
1211 imx334->dev = &client->dev;
1212 imx334->cci = devm_cci_regmap_init_i2c(client, reg_addr_bits: 16);
1213 if (IS_ERR(ptr: imx334->cci)) {
1214 dev_err(imx334->dev, "Unable to initialize I2C\n");
1215 return -ENODEV;
1216 }
1217
1218 /* Initialize subdev */
1219 v4l2_i2c_subdev_init(sd: &imx334->sd, client, ops: &imx334_subdev_ops);
1220 imx334->sd.internal_ops = &imx334_internal_ops;
1221
1222 ret = imx334_parse_hw_config(imx334);
1223 if (ret)
1224 return dev_err_probe(dev: imx334->dev, err: ret,
1225 fmt: "HW configuration is not supported\n");
1226
1227 ret = imx334_power_on(dev: imx334->dev);
1228 if (ret) {
1229 dev_err_probe(dev: imx334->dev, err: ret, fmt: "failed to power-on the sensor\n");
1230 return ret;
1231 }
1232
1233 /* Check module identity */
1234 ret = imx334_detect(imx334);
1235 if (ret) {
1236 dev_err(imx334->dev, "failed to find sensor: %d\n", ret);
1237 goto error_power_off;
1238 }
1239
1240 /* Set default mode to max resolution */
1241 imx334->cur_mode = &supported_modes[__ffs(imx334->link_freq_bitmap)];
1242 imx334->cur_code = imx334_mbus_codes[0];
1243 imx334->vblank = imx334->cur_mode->vblank;
1244
1245 ret = imx334_init_controls(imx334);
1246 if (ret) {
1247 dev_err(imx334->dev, "failed to init controls: %d\n", ret);
1248 goto error_power_off;
1249 }
1250
1251 /* Initialize subdev */
1252 imx334->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1253 imx334->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
1254
1255 /* Initialize source pad */
1256 imx334->pad.flags = MEDIA_PAD_FL_SOURCE;
1257 ret = media_entity_pads_init(entity: &imx334->sd.entity, num_pads: 1, pads: &imx334->pad);
1258 if (ret) {
1259 dev_err(imx334->dev, "failed to init entity pads: %d\n", ret);
1260 goto error_handler_free;
1261 }
1262
1263 imx334->sd.state_lock = imx334->ctrl_handler.lock;
1264 ret = v4l2_subdev_init_finalize(&imx334->sd);
1265 if (ret < 0) {
1266 dev_err(imx334->dev, "subdev init error: %d\n", ret);
1267 goto error_media_entity;
1268 }
1269
1270 pm_runtime_set_active(dev: imx334->dev);
1271 pm_runtime_enable(dev: imx334->dev);
1272
1273 ret = v4l2_async_register_subdev_sensor(sd: &imx334->sd);
1274 if (ret < 0) {
1275 dev_err(imx334->dev,
1276 "failed to register async subdev: %d\n", ret);
1277 goto error_subdev_cleanup;
1278 }
1279
1280 pm_runtime_idle(dev: imx334->dev);
1281
1282 return 0;
1283
1284error_subdev_cleanup:
1285 v4l2_subdev_cleanup(sd: &imx334->sd);
1286 pm_runtime_disable(dev: imx334->dev);
1287 pm_runtime_set_suspended(dev: imx334->dev);
1288
1289error_media_entity:
1290 media_entity_cleanup(entity: &imx334->sd.entity);
1291
1292error_handler_free:
1293 v4l2_ctrl_handler_free(hdl: imx334->sd.ctrl_handler);
1294
1295error_power_off:
1296 imx334_power_off(dev: imx334->dev);
1297
1298 return ret;
1299}
1300
1301/**
1302 * imx334_remove() - I2C client device unbinding
1303 * @client: pointer to I2C client device
1304 *
1305 * Return: 0 if successful, error code otherwise.
1306 */
1307static void imx334_remove(struct i2c_client *client)
1308{
1309 struct v4l2_subdev *sd = i2c_get_clientdata(client);
1310
1311 v4l2_async_unregister_subdev(sd);
1312 v4l2_subdev_cleanup(sd);
1313 media_entity_cleanup(entity: &sd->entity);
1314 v4l2_ctrl_handler_free(hdl: sd->ctrl_handler);
1315
1316 pm_runtime_disable(dev: &client->dev);
1317 if (!pm_runtime_status_suspended(dev: &client->dev)) {
1318 imx334_power_off(dev: &client->dev);
1319 pm_runtime_set_suspended(dev: &client->dev);
1320 }
1321}
1322
1323static const struct dev_pm_ops imx334_pm_ops = {
1324 SET_RUNTIME_PM_OPS(imx334_power_off, imx334_power_on, NULL)
1325};
1326
1327static const struct of_device_id imx334_of_match[] = {
1328 { .compatible = "sony,imx334" },
1329 { }
1330};
1331
1332MODULE_DEVICE_TABLE(of, imx334_of_match);
1333
1334static struct i2c_driver imx334_driver = {
1335 .probe = imx334_probe,
1336 .remove = imx334_remove,
1337 .driver = {
1338 .name = "imx334",
1339 .pm = &imx334_pm_ops,
1340 .of_match_table = imx334_of_match,
1341 },
1342};
1343
1344module_i2c_driver(imx334_driver);
1345
1346MODULE_DESCRIPTION("Sony imx334 sensor driver");
1347MODULE_LICENSE("GPL");
1348

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source code of linux/drivers/media/i2c/imx334.c