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1// SPDX-License-Identifier: GPL-2.02/*3 * Omnivision OV2680 CMOS Image Sensor driver4 *5 * Copyright (C) 2018 Linaro Ltd6 *7 * Based on OV5640 Sensor Driver8 * Copyright (C) 2011-2013 Freescale Semiconductor, Inc. All Rights Reserved.9 * Copyright (C) 2014-2017 Mentor Graphics Inc.10 *11 */12 13#include <linux/clk.h>14#include <linux/delay.h>15#include <linux/err.h>16#include <linux/gpio/consumer.h>17#include <linux/i2c.h>18#include <linux/init.h>19#include <linux/mod_devicetable.h>20#include <linux/module.h>21#include <linux/pm_runtime.h>22#include <linux/regmap.h>23#include <linux/regulator/consumer.h>24 25#include <media/v4l2-cci.h>26#include <media/v4l2-common.h>27#include <media/v4l2-ctrls.h>28#include <media/v4l2-fwnode.h>29#include <media/v4l2-subdev.h>30 31#define OV2680_CHIP_ID 0x268032 33#define OV2680_REG_STREAM_CTRL CCI_REG8(0x0100)34#define OV2680_REG_SOFT_RESET CCI_REG8(0x0103)35 36#define OV2680_REG_CHIP_ID CCI_REG16(0x300a)37#define OV2680_REG_SC_CMMN_SUB_ID CCI_REG8(0x302a)38#define OV2680_REG_PLL_MULTIPLIER CCI_REG16(0x3081)39 40#define OV2680_REG_EXPOSURE_PK CCI_REG24(0x3500)41#define OV2680_REG_R_MANUAL CCI_REG8(0x3503)42#define OV2680_REG_GAIN_PK CCI_REG16(0x350a)43 44#define OV2680_REG_SENSOR_CTRL_0A CCI_REG8(0x370a)45 46#define OV2680_REG_HORIZONTAL_START CCI_REG16(0x3800)47#define OV2680_REG_VERTICAL_START CCI_REG16(0x3802)48#define OV2680_REG_HORIZONTAL_END CCI_REG16(0x3804)49#define OV2680_REG_VERTICAL_END CCI_REG16(0x3806)50#define OV2680_REG_HORIZONTAL_OUTPUT_SIZE CCI_REG16(0x3808)51#define OV2680_REG_VERTICAL_OUTPUT_SIZE CCI_REG16(0x380a)52#define OV2680_REG_TIMING_HTS CCI_REG16(0x380c)53#define OV2680_REG_TIMING_VTS CCI_REG16(0x380e)54#define OV2680_REG_ISP_X_WIN CCI_REG16(0x3810)55#define OV2680_REG_ISP_Y_WIN CCI_REG16(0x3812)56#define OV2680_REG_X_INC CCI_REG8(0x3814)57#define OV2680_REG_Y_INC CCI_REG8(0x3815)58#define OV2680_REG_FORMAT1 CCI_REG8(0x3820)59#define OV2680_REG_FORMAT2 CCI_REG8(0x3821)60 61#define OV2680_REG_ISP_CTRL00 CCI_REG8(0x5080)62 63#define OV2680_REG_X_WIN CCI_REG16(0x5704)64#define OV2680_REG_Y_WIN CCI_REG16(0x5706)65 66#define OV2680_FRAME_RATE 3067 68#define OV2680_NATIVE_WIDTH 161669#define OV2680_NATIVE_HEIGHT 121670#define OV2680_NATIVE_START_LEFT 071#define OV2680_NATIVE_START_TOP 072#define OV2680_ACTIVE_WIDTH 160073#define OV2680_ACTIVE_HEIGHT 120074#define OV2680_ACTIVE_START_LEFT 875#define OV2680_ACTIVE_START_TOP 876#define OV2680_MIN_CROP_WIDTH 277#define OV2680_MIN_CROP_HEIGHT 278#define OV2680_MIN_VBLANK 479#define OV2680_MAX_VBLANK 0xffff80 81/* Fixed pre-div of 1/2 */82#define OV2680_PLL_PREDIV0 283 84/* Pre-div configurable through reg 0x3080, left at its default of 0x02 : 1/2 */85#define OV2680_PLL_PREDIV 286 87/* 66MHz pixel clock: 66MHz / 1704 * 1294 = 30fps */88#define OV2680_PIXELS_PER_LINE 170489#define OV2680_LINES_PER_FRAME_30FPS 129490 91/* Max exposure time is VTS - 8 */92#define OV2680_INTEGRATION_TIME_MARGIN 893 94#define OV2680_DEFAULT_WIDTH 80095#define OV2680_DEFAULT_HEIGHT 60096 97/* For enum_frame_size() full-size + binned-/quarter-size */98#define OV2680_FRAME_SIZES 299 100static const char * const ov2680_supply_name[] = {101 "DOVDD",102 "DVDD",103 "AVDD",104};105 106#define OV2680_NUM_SUPPLIES ARRAY_SIZE(ov2680_supply_name)107 108enum {109 OV2680_19_2_MHZ,110 OV2680_24_MHZ,111};112 113static const unsigned long ov2680_xvclk_freqs[] = {114 [OV2680_19_2_MHZ] = 19200000,115 [OV2680_24_MHZ] = 24000000,116};117 118static const u8 ov2680_pll_multipliers[] = {119 [OV2680_19_2_MHZ] = 69,120 [OV2680_24_MHZ] = 55,121};122 123struct ov2680_ctrls {124 struct v4l2_ctrl_handler handler;125 struct v4l2_ctrl *exposure;126 struct v4l2_ctrl *gain;127 struct v4l2_ctrl *hflip;128 struct v4l2_ctrl *vflip;129 struct v4l2_ctrl *test_pattern;130 struct v4l2_ctrl *link_freq;131 struct v4l2_ctrl *pixel_rate;132 struct v4l2_ctrl *vblank;133 struct v4l2_ctrl *hblank;134};135 136struct ov2680_mode {137 struct v4l2_rect crop;138 struct v4l2_mbus_framefmt fmt;139 struct v4l2_fract frame_interval;140 bool binning;141 u16 h_start;142 u16 v_start;143 u16 h_end;144 u16 v_end;145 u16 h_output_size;146 u16 v_output_size;147};148 149struct ov2680_dev {150 struct device *dev;151 struct regmap *regmap;152 struct v4l2_subdev sd;153 154 struct media_pad pad;155 struct clk *xvclk;156 u32 xvclk_freq;157 u8 pll_mult;158 s64 link_freq[1];159 u64 pixel_rate;160 struct regulator_bulk_data supplies[OV2680_NUM_SUPPLIES];161 162 struct gpio_desc *pwdn_gpio;163 struct mutex lock; /* protect members */164 165 bool is_streaming;166 167 struct ov2680_ctrls ctrls;168 struct ov2680_mode mode;169};170 171static const struct v4l2_rect ov2680_default_crop = {172 .left = OV2680_ACTIVE_START_LEFT,173 .top = OV2680_ACTIVE_START_TOP,174 .width = OV2680_ACTIVE_WIDTH,175 .height = OV2680_ACTIVE_HEIGHT,176};177 178static const char * const test_pattern_menu[] = {179 "Disabled",180 "Color Bars",181 "Random Data",182 "Square",183 "Black Image",184};185 186static const int ov2680_hv_flip_bayer_order[] = {187 MEDIA_BUS_FMT_SBGGR10_1X10,188 MEDIA_BUS_FMT_SGRBG10_1X10,189 MEDIA_BUS_FMT_SGBRG10_1X10,190 MEDIA_BUS_FMT_SRGGB10_1X10,191};192 193static const struct reg_sequence ov2680_global_setting[] = {194 /* MIPI PHY, 0x10 -> 0x1c enable bp_c_hs_en_lat and bp_d_hs_en_lat */195 {0x3016, 0x1c},196 197 /* R MANUAL set exposure and gain to manual (hw does not do auto) */198 {0x3503, 0x03},199 200 /* Analog control register tweaks */201 {0x3603, 0x39}, /* Reset value 0x99 */202 {0x3604, 0x24}, /* Reset value 0x74 */203 {0x3621, 0x37}, /* Reset value 0x44 */204 205 /* Sensor control register tweaks */206 {0x3701, 0x64}, /* Reset value 0x61 */207 {0x3705, 0x3c}, /* Reset value 0x21 */208 {0x370c, 0x50}, /* Reset value 0x10 */209 {0x370d, 0xc0}, /* Reset value 0x00 */210 {0x3718, 0x88}, /* Reset value 0x80 */211 212 /* PSRAM tweaks */213 {0x3781, 0x80}, /* Reset value 0x00 */214 {0x3784, 0x0c}, /* Reset value 0x00, based on OV2680_R1A_AM10.ovt */215 {0x3789, 0x60}, /* Reset value 0x50 */216 217 /* BLC CTRL00 0x01 -> 0x81 set avg_weight to 8 */218 {0x4000, 0x81},219 220 /* Set black level compensation range to 0 - 3 (default 0 - 11) */221 {0x4008, 0x00},222 {0x4009, 0x03},223 224 /* VFIFO R2 0x00 -> 0x02 set Frame reset enable */225 {0x4602, 0x02},226 227 /* MIPI ctrl CLK PREPARE MIN change from 0x26 (38) -> 0x36 (54) */228 {0x481f, 0x36},229 230 /* MIPI ctrl CLK LPX P MIN change from 0x32 (50) -> 0x36 (54) */231 {0x4825, 0x36},232 233 /* R ISP CTRL2 0x20 -> 0x30, set sof_sel bit */234 {0x5002, 0x30},235 236 /*237 * Window CONTROL 0x00 -> 0x01, enable manual window control,238 * this is necessary for full size flip and mirror support.239 */240 {0x5708, 0x01},241 242 /*243 * DPC CTRL0 0x14 -> 0x3e, set enable_tail, enable_3x3_cluster244 * and enable_general_tail bits based OV2680_R1A_AM10.ovt.245 */246 {0x5780, 0x3e},247 248 /* DPC MORE CONNECTION CASE THRE 0x0c (12) -> 0x02 (2) */249 {0x5788, 0x02},250 251 /* DPC GAIN LIST1 0x0f (15) -> 0x08 (8) */252 {0x578e, 0x08},253 254 /* DPC GAIN LIST2 0x3f (63) -> 0x0c (12) */255 {0x578f, 0x0c},256 257 /* DPC THRE RATIO 0x04 (4) -> 0x00 (0) */258 {0x5792, 0x00},259};260 261static struct ov2680_dev *to_ov2680_dev(struct v4l2_subdev *sd)262{263 return container_of(sd, struct ov2680_dev, sd);264}265 266static inline struct v4l2_subdev *ctrl_to_sd(struct v4l2_ctrl *ctrl)267{268 return &container_of(ctrl->handler, struct ov2680_dev,269 ctrls.handler)->sd;270}271 272static void ov2680_power_up(struct ov2680_dev *sensor)273{274 if (!sensor->pwdn_gpio)275 return;276 277 gpiod_set_value(sensor->pwdn_gpio, 0);278 usleep_range(5000, 10000);279}280 281static void ov2680_power_down(struct ov2680_dev *sensor)282{283 if (!sensor->pwdn_gpio)284 return;285 286 gpiod_set_value(sensor->pwdn_gpio, 1);287 usleep_range(5000, 10000);288}289 290static void ov2680_set_bayer_order(struct ov2680_dev *sensor,291 struct v4l2_mbus_framefmt *fmt)292{293 int hv_flip = 0;294 295 if (sensor->ctrls.vflip && sensor->ctrls.vflip->val)296 hv_flip += 1;297 298 if (sensor->ctrls.hflip && sensor->ctrls.hflip->val)299 hv_flip += 2;300 301 fmt->code = ov2680_hv_flip_bayer_order[hv_flip];302}303 304static struct v4l2_mbus_framefmt *305__ov2680_get_pad_format(struct ov2680_dev *sensor,306 struct v4l2_subdev_state *state,307 unsigned int pad,308 enum v4l2_subdev_format_whence which)309{310 if (which == V4L2_SUBDEV_FORMAT_TRY)311 return v4l2_subdev_state_get_format(state, pad);312 313 return &sensor->mode.fmt;314}315 316static struct v4l2_rect *317__ov2680_get_pad_crop(struct ov2680_dev *sensor,318 struct v4l2_subdev_state *state,319 unsigned int pad,320 enum v4l2_subdev_format_whence which)321{322 if (which == V4L2_SUBDEV_FORMAT_TRY)323 return v4l2_subdev_state_get_crop(state, pad);324 325 return &sensor->mode.crop;326}327 328static void ov2680_fill_format(struct ov2680_dev *sensor,329 struct v4l2_mbus_framefmt *fmt,330 unsigned int width, unsigned int height)331{332 memset(fmt, 0, sizeof(*fmt));333 fmt->width = width;334 fmt->height = height;335 fmt->field = V4L2_FIELD_NONE;336 fmt->colorspace = V4L2_COLORSPACE_SRGB;337 ov2680_set_bayer_order(sensor, fmt);338}339 340static void ov2680_calc_mode(struct ov2680_dev *sensor)341{342 int width = sensor->mode.fmt.width;343 int height = sensor->mode.fmt.height;344 int orig_width = width;345 int orig_height = height;346 347 if (width <= (sensor->mode.crop.width / 2) &&348 height <= (sensor->mode.crop.height / 2)) {349 sensor->mode.binning = true;350 width *= 2;351 height *= 2;352 } else {353 sensor->mode.binning = false;354 }355 356 sensor->mode.h_start = (sensor->mode.crop.left +357 (sensor->mode.crop.width - width) / 2) & ~1;358 sensor->mode.v_start = (sensor->mode.crop.top +359 (sensor->mode.crop.height - height) / 2) & ~1;360 sensor->mode.h_end =361 min(sensor->mode.h_start + width - 1, OV2680_NATIVE_WIDTH - 1);362 sensor->mode.v_end =363 min(sensor->mode.v_start + height - 1, OV2680_NATIVE_HEIGHT - 1);364 sensor->mode.h_output_size = orig_width;365 sensor->mode.v_output_size = orig_height;366}367 368static int ov2680_set_mode(struct ov2680_dev *sensor)369{370 u8 sensor_ctrl_0a, inc, fmt1, fmt2;371 int ret = 0;372 373 if (sensor->mode.binning) {374 sensor_ctrl_0a = 0x23;375 inc = 0x31;376 fmt1 = 0xc2;377 fmt2 = 0x01;378 } else {379 sensor_ctrl_0a = 0x21;380 inc = 0x11;381 fmt1 = 0xc0;382 fmt2 = 0x00;383 }384 385 cci_write(sensor->regmap, OV2680_REG_SENSOR_CTRL_0A,386 sensor_ctrl_0a, &ret);387 cci_write(sensor->regmap, OV2680_REG_HORIZONTAL_START,388 sensor->mode.h_start, &ret);389 cci_write(sensor->regmap, OV2680_REG_VERTICAL_START,390 sensor->mode.v_start, &ret);391 cci_write(sensor->regmap, OV2680_REG_HORIZONTAL_END,392 sensor->mode.h_end, &ret);393 cci_write(sensor->regmap, OV2680_REG_VERTICAL_END,394 sensor->mode.v_end, &ret);395 cci_write(sensor->regmap, OV2680_REG_HORIZONTAL_OUTPUT_SIZE,396 sensor->mode.h_output_size, &ret);397 cci_write(sensor->regmap, OV2680_REG_VERTICAL_OUTPUT_SIZE,398 sensor->mode.v_output_size, &ret);399 cci_write(sensor->regmap, OV2680_REG_TIMING_HTS,400 OV2680_PIXELS_PER_LINE, &ret);401 /* VTS gets set by the vblank ctrl */402 cci_write(sensor->regmap, OV2680_REG_ISP_X_WIN, 0, &ret);403 cci_write(sensor->regmap, OV2680_REG_ISP_Y_WIN, 0, &ret);404 cci_write(sensor->regmap, OV2680_REG_X_INC, inc, &ret);405 cci_write(sensor->regmap, OV2680_REG_Y_INC, inc, &ret);406 cci_write(sensor->regmap, OV2680_REG_X_WIN,407 sensor->mode.h_output_size, &ret);408 cci_write(sensor->regmap, OV2680_REG_Y_WIN,409 sensor->mode.v_output_size, &ret);410 cci_write(sensor->regmap, OV2680_REG_FORMAT1, fmt1, &ret);411 cci_write(sensor->regmap, OV2680_REG_FORMAT2, fmt2, &ret);412 413 return ret;414}415 416static int ov2680_set_vflip(struct ov2680_dev *sensor, s32 val)417{418 int ret;419 420 if (sensor->is_streaming)421 return -EBUSY;422 423 ret = cci_update_bits(sensor->regmap, OV2680_REG_FORMAT1,424 BIT(2), val ? BIT(2) : 0, NULL);425 if (ret < 0)426 return ret;427 428 ov2680_set_bayer_order(sensor, &sensor->mode.fmt);429 return 0;430}431 432static int ov2680_set_hflip(struct ov2680_dev *sensor, s32 val)433{434 int ret;435 436 if (sensor->is_streaming)437 return -EBUSY;438 439 ret = cci_update_bits(sensor->regmap, OV2680_REG_FORMAT2,440 BIT(2), val ? BIT(2) : 0, NULL);441 if (ret < 0)442 return ret;443 444 ov2680_set_bayer_order(sensor, &sensor->mode.fmt);445 return 0;446}447 448static int ov2680_test_pattern_set(struct ov2680_dev *sensor, int value)449{450 int ret = 0;451 452 if (!value)453 return cci_update_bits(sensor->regmap, OV2680_REG_ISP_CTRL00,454 BIT(7), 0, NULL);455 456 cci_update_bits(sensor->regmap, OV2680_REG_ISP_CTRL00,457 0x03, value - 1, &ret);458 cci_update_bits(sensor->regmap, OV2680_REG_ISP_CTRL00,459 BIT(7), BIT(7), &ret);460 461 return ret;462}463 464static int ov2680_gain_set(struct ov2680_dev *sensor, u32 gain)465{466 return cci_write(sensor->regmap, OV2680_REG_GAIN_PK, gain, NULL);467}468 469static int ov2680_exposure_set(struct ov2680_dev *sensor, u32 exp)470{471 return cci_write(sensor->regmap, OV2680_REG_EXPOSURE_PK, exp << 4,472 NULL);473}474 475static int ov2680_exposure_update_range(struct ov2680_dev *sensor)476{477 int exp_max = sensor->mode.fmt.height + sensor->ctrls.vblank->val -478 OV2680_INTEGRATION_TIME_MARGIN;479 480 return __v4l2_ctrl_modify_range(sensor->ctrls.exposure, 0, exp_max,481 1, exp_max);482}483 484static int ov2680_stream_enable(struct ov2680_dev *sensor)485{486 int ret;487 488 ret = cci_write(sensor->regmap, OV2680_REG_PLL_MULTIPLIER,489 sensor->pll_mult, NULL);490 if (ret < 0)491 return ret;492 493 ret = regmap_multi_reg_write(sensor->regmap,494 ov2680_global_setting,495 ARRAY_SIZE(ov2680_global_setting));496 if (ret < 0)497 return ret;498 499 ret = ov2680_set_mode(sensor);500 if (ret < 0)501 return ret;502 503 /* Restore value of all ctrls */504 ret = __v4l2_ctrl_handler_setup(&sensor->ctrls.handler);505 if (ret < 0)506 return ret;507 508 return cci_write(sensor->regmap, OV2680_REG_STREAM_CTRL, 1, NULL);509}510 511static int ov2680_stream_disable(struct ov2680_dev *sensor)512{513 return cci_write(sensor->regmap, OV2680_REG_STREAM_CTRL, 0, NULL);514}515 516static int ov2680_power_off(struct ov2680_dev *sensor)517{518 clk_disable_unprepare(sensor->xvclk);519 ov2680_power_down(sensor);520 regulator_bulk_disable(OV2680_NUM_SUPPLIES, sensor->supplies);521 return 0;522}523 524static int ov2680_power_on(struct ov2680_dev *sensor)525{526 int ret;527 528 ret = regulator_bulk_enable(OV2680_NUM_SUPPLIES, sensor->supplies);529 if (ret < 0) {530 dev_err(sensor->dev, "failed to enable regulators: %d\n", ret);531 return ret;532 }533 534 if (!sensor->pwdn_gpio) {535 ret = cci_write(sensor->regmap, OV2680_REG_SOFT_RESET, 0x01,536 NULL);537 if (ret != 0) {538 dev_err(sensor->dev, "sensor soft reset failed\n");539 goto err_disable_regulators;540 }541 usleep_range(1000, 2000);542 } else {543 ov2680_power_down(sensor);544 ov2680_power_up(sensor);545 }546 547 ret = clk_prepare_enable(sensor->xvclk);548 if (ret < 0)549 goto err_disable_regulators;550 551 return 0;552 553err_disable_regulators:554 regulator_bulk_disable(OV2680_NUM_SUPPLIES, sensor->supplies);555 return ret;556}557 558static int ov2680_get_frame_interval(struct v4l2_subdev *sd,559 struct v4l2_subdev_state *sd_state,560 struct v4l2_subdev_frame_interval *fi)561{562 struct ov2680_dev *sensor = to_ov2680_dev(sd);563 564 /*565 * FIXME: Implement support for V4L2_SUBDEV_FORMAT_TRY, using the V4L2566 * subdev active state API.567 */568 if (fi->which != V4L2_SUBDEV_FORMAT_ACTIVE)569 return -EINVAL;570 571 mutex_lock(&sensor->lock);572 fi->interval = sensor->mode.frame_interval;573 mutex_unlock(&sensor->lock);574 575 return 0;576}577 578static int ov2680_s_stream(struct v4l2_subdev *sd, int enable)579{580 struct ov2680_dev *sensor = to_ov2680_dev(sd);581 int ret = 0;582 583 mutex_lock(&sensor->lock);584 585 if (sensor->is_streaming == !!enable)586 goto unlock;587 588 if (enable) {589 ret = pm_runtime_resume_and_get(sensor->sd.dev);590 if (ret < 0)591 goto unlock;592 593 ret = ov2680_stream_enable(sensor);594 if (ret < 0) {595 pm_runtime_put(sensor->sd.dev);596 goto unlock;597 }598 } else {599 ret = ov2680_stream_disable(sensor);600 pm_runtime_put(sensor->sd.dev);601 }602 603 sensor->is_streaming = !!enable;604 605unlock:606 mutex_unlock(&sensor->lock);607 608 return ret;609}610 611static int ov2680_enum_mbus_code(struct v4l2_subdev *sd,612 struct v4l2_subdev_state *sd_state,613 struct v4l2_subdev_mbus_code_enum *code)614{615 struct ov2680_dev *sensor = to_ov2680_dev(sd);616 617 if (code->index != 0)618 return -EINVAL;619 620 code->code = sensor->mode.fmt.code;621 622 return 0;623}624 625static int ov2680_get_fmt(struct v4l2_subdev *sd,626 struct v4l2_subdev_state *sd_state,627 struct v4l2_subdev_format *format)628{629 struct ov2680_dev *sensor = to_ov2680_dev(sd);630 struct v4l2_mbus_framefmt *fmt;631 632 fmt = __ov2680_get_pad_format(sensor, sd_state, format->pad,633 format->which);634 635 mutex_lock(&sensor->lock);636 format->format = *fmt;637 mutex_unlock(&sensor->lock);638 639 return 0;640}641 642static int ov2680_set_fmt(struct v4l2_subdev *sd,643 struct v4l2_subdev_state *sd_state,644 struct v4l2_subdev_format *format)645{646 struct ov2680_dev *sensor = to_ov2680_dev(sd);647 struct v4l2_mbus_framefmt *try_fmt;648 const struct v4l2_rect *crop;649 unsigned int width, height;650 int def, max, ret = 0;651 652 crop = __ov2680_get_pad_crop(sensor, sd_state, format->pad,653 format->which);654 655 /* Limit set_fmt max size to crop width / height */656 width = clamp_val(ALIGN(format->format.width, 2),657 OV2680_MIN_CROP_WIDTH, crop->width);658 height = clamp_val(ALIGN(format->format.height, 2),659 OV2680_MIN_CROP_HEIGHT, crop->height);660 661 ov2680_fill_format(sensor, &format->format, width, height);662 663 if (format->which == V4L2_SUBDEV_FORMAT_TRY) {664 try_fmt = v4l2_subdev_state_get_format(sd_state, 0);665 *try_fmt = format->format;666 return 0;667 }668 669 mutex_lock(&sensor->lock);670 671 if (sensor->is_streaming) {672 ret = -EBUSY;673 goto unlock;674 }675 676 sensor->mode.fmt = format->format;677 ov2680_calc_mode(sensor);678 679 /* vblank range is height dependent adjust and reset to default */680 max = OV2680_MAX_VBLANK - height;681 def = OV2680_LINES_PER_FRAME_30FPS - height;682 ret = __v4l2_ctrl_modify_range(sensor->ctrls.vblank, OV2680_MIN_VBLANK,683 max, 1, def);684 if (ret)685 goto unlock;686 687 ret = __v4l2_ctrl_s_ctrl(sensor->ctrls.vblank, def);688 if (ret)689 goto unlock;690 691 /* exposure range depends on vts which may have changed */692 ret = ov2680_exposure_update_range(sensor);693 if (ret)694 goto unlock;695 696 /* adjust hblank value for new width */697 def = OV2680_PIXELS_PER_LINE - width;698 ret = __v4l2_ctrl_modify_range(sensor->ctrls.hblank, def, def, 1, def);699 700unlock:701 mutex_unlock(&sensor->lock);702 703 return ret;704}705 706static int ov2680_get_selection(struct v4l2_subdev *sd,707 struct v4l2_subdev_state *state,708 struct v4l2_subdev_selection *sel)709{710 struct ov2680_dev *sensor = to_ov2680_dev(sd);711 712 switch (sel->target) {713 case V4L2_SEL_TGT_CROP:714 mutex_lock(&sensor->lock);715 sel->r = *__ov2680_get_pad_crop(sensor, state, sel->pad,716 sel->which);717 mutex_unlock(&sensor->lock);718 break;719 case V4L2_SEL_TGT_NATIVE_SIZE:720 case V4L2_SEL_TGT_CROP_BOUNDS:721 sel->r.top = 0;722 sel->r.left = 0;723 sel->r.width = OV2680_NATIVE_WIDTH;724 sel->r.height = OV2680_NATIVE_HEIGHT;725 break;726 case V4L2_SEL_TGT_CROP_DEFAULT:727 sel->r = ov2680_default_crop;728 break;729 default:730 return -EINVAL;731 }732 733 return 0;734}735 736static int ov2680_set_selection(struct v4l2_subdev *sd,737 struct v4l2_subdev_state *state,738 struct v4l2_subdev_selection *sel)739{740 struct ov2680_dev *sensor = to_ov2680_dev(sd);741 struct v4l2_mbus_framefmt *format;742 struct v4l2_rect *crop;743 struct v4l2_rect rect;744 745 if (sel->target != V4L2_SEL_TGT_CROP)746 return -EINVAL;747 748 /*749 * Clamp the boundaries of the crop rectangle to the size of the sensor750 * pixel array. Align to multiples of 2 to ensure Bayer pattern isn't751 * disrupted.752 */753 rect.left = clamp_val(ALIGN(sel->r.left, 2),754 OV2680_NATIVE_START_LEFT, OV2680_NATIVE_WIDTH);755 rect.top = clamp_val(ALIGN(sel->r.top, 2),756 OV2680_NATIVE_START_TOP, OV2680_NATIVE_HEIGHT);757 rect.width = clamp_val(ALIGN(sel->r.width, 2),758 OV2680_MIN_CROP_WIDTH, OV2680_NATIVE_WIDTH);759 rect.height = clamp_val(ALIGN(sel->r.height, 2),760 OV2680_MIN_CROP_HEIGHT, OV2680_NATIVE_HEIGHT);761 762 /* Make sure the crop rectangle isn't outside the bounds of the array */763 rect.width = min_t(unsigned int, rect.width,764 OV2680_NATIVE_WIDTH - rect.left);765 rect.height = min_t(unsigned int, rect.height,766 OV2680_NATIVE_HEIGHT - rect.top);767 768 crop = __ov2680_get_pad_crop(sensor, state, sel->pad, sel->which);769 770 mutex_lock(&sensor->lock);771 if (rect.width != crop->width || rect.height != crop->height) {772 /*773 * Reset the output image size if the crop rectangle size has774 * been modified.775 */776 format = __ov2680_get_pad_format(sensor, state, sel->pad,777 sel->which);778 format->width = rect.width;779 format->height = rect.height;780 }781 782 *crop = rect;783 mutex_unlock(&sensor->lock);784 785 sel->r = rect;786 787 return 0;788}789 790static int ov2680_init_state(struct v4l2_subdev *sd,791 struct v4l2_subdev_state *sd_state)792{793 struct ov2680_dev *sensor = to_ov2680_dev(sd);794 795 *v4l2_subdev_state_get_crop(sd_state, 0) = ov2680_default_crop;796 797 ov2680_fill_format(sensor, v4l2_subdev_state_get_format(sd_state, 0),798 OV2680_DEFAULT_WIDTH, OV2680_DEFAULT_HEIGHT);799 return 0;800}801 802static int ov2680_enum_frame_size(struct v4l2_subdev *sd,803 struct v4l2_subdev_state *sd_state,804 struct v4l2_subdev_frame_size_enum *fse)805{806 struct ov2680_dev *sensor = to_ov2680_dev(sd);807 struct v4l2_rect *crop;808 809 if (fse->index >= OV2680_FRAME_SIZES)810 return -EINVAL;811 812 crop = __ov2680_get_pad_crop(sensor, sd_state, fse->pad, fse->which);813 if (!crop)814 return -EINVAL;815 816 fse->min_width = crop->width / (fse->index + 1);817 fse->min_height = crop->height / (fse->index + 1);818 fse->max_width = fse->min_width;819 fse->max_height = fse->min_height;820 821 return 0;822}823 824static bool ov2680_valid_frame_size(struct v4l2_subdev *sd,825 struct v4l2_subdev_state *sd_state,826 struct v4l2_subdev_frame_interval_enum *fie)827{828 struct v4l2_subdev_frame_size_enum fse = {829 .pad = fie->pad,830 .which = fie->which,831 };832 int i;833 834 for (i = 0; i < OV2680_FRAME_SIZES; i++) {835 fse.index = i;836 837 if (ov2680_enum_frame_size(sd, sd_state, &fse))838 return false;839 840 if (fie->width == fse.min_width &&841 fie->height == fse.min_height)842 return true;843 }844 845 return false;846}847 848static int ov2680_enum_frame_interval(struct v4l2_subdev *sd,849 struct v4l2_subdev_state *sd_state,850 struct v4l2_subdev_frame_interval_enum *fie)851{852 struct ov2680_dev *sensor = to_ov2680_dev(sd);853 854 /* Only 1 framerate */855 if (fie->index || !ov2680_valid_frame_size(sd, sd_state, fie))856 return -EINVAL;857 858 fie->interval = sensor->mode.frame_interval;859 860 return 0;861}862 863static int ov2680_s_ctrl(struct v4l2_ctrl *ctrl)864{865 struct v4l2_subdev *sd = ctrl_to_sd(ctrl);866 struct ov2680_dev *sensor = to_ov2680_dev(sd);867 int ret;868 869 /* Update exposure range on vblank changes */870 if (ctrl->id == V4L2_CID_VBLANK) {871 ret = ov2680_exposure_update_range(sensor);872 if (ret)873 return ret;874 }875 876 /* Only apply changes to the controls if the device is powered up */877 if (!pm_runtime_get_if_in_use(sensor->sd.dev)) {878 ov2680_set_bayer_order(sensor, &sensor->mode.fmt);879 return 0;880 }881 882 switch (ctrl->id) {883 case V4L2_CID_ANALOGUE_GAIN:884 ret = ov2680_gain_set(sensor, ctrl->val);885 break;886 case V4L2_CID_EXPOSURE:887 ret = ov2680_exposure_set(sensor, ctrl->val);888 break;889 case V4L2_CID_VFLIP:890 ret = ov2680_set_vflip(sensor, ctrl->val);891 break;892 case V4L2_CID_HFLIP:893 ret = ov2680_set_hflip(sensor, ctrl->val);894 break;895 case V4L2_CID_TEST_PATTERN:896 ret = ov2680_test_pattern_set(sensor, ctrl->val);897 break;898 case V4L2_CID_VBLANK:899 ret = cci_write(sensor->regmap, OV2680_REG_TIMING_VTS,900 sensor->mode.fmt.height + ctrl->val, NULL);901 break;902 default:903 ret = -EINVAL;904 break;905 }906 907 pm_runtime_put(sensor->sd.dev);908 return ret;909}910 911static const struct v4l2_ctrl_ops ov2680_ctrl_ops = {912 .s_ctrl = ov2680_s_ctrl,913};914 915static const struct v4l2_subdev_video_ops ov2680_video_ops = {916 .s_stream = ov2680_s_stream,917};918 919static const struct v4l2_subdev_pad_ops ov2680_pad_ops = {920 .enum_mbus_code = ov2680_enum_mbus_code,921 .enum_frame_size = ov2680_enum_frame_size,922 .enum_frame_interval = ov2680_enum_frame_interval,923 .get_fmt = ov2680_get_fmt,924 .set_fmt = ov2680_set_fmt,925 .get_selection = ov2680_get_selection,926 .set_selection = ov2680_set_selection,927 .get_frame_interval = ov2680_get_frame_interval,928 .set_frame_interval = ov2680_get_frame_interval,929};930 931static const struct v4l2_subdev_ops ov2680_subdev_ops = {932 .video = &ov2680_video_ops,933 .pad = &ov2680_pad_ops,934};935 936static const struct v4l2_subdev_internal_ops ov2680_internal_ops = {937 .init_state = ov2680_init_state,938};939 940static int ov2680_mode_init(struct ov2680_dev *sensor)941{942 /* set initial mode */943 sensor->mode.crop = ov2680_default_crop;944 ov2680_fill_format(sensor, &sensor->mode.fmt,945 OV2680_DEFAULT_WIDTH, OV2680_DEFAULT_HEIGHT);946 ov2680_calc_mode(sensor);947 948 sensor->mode.frame_interval.denominator = OV2680_FRAME_RATE;949 sensor->mode.frame_interval.numerator = 1;950 951 return 0;952}953 954static int ov2680_v4l2_register(struct ov2680_dev *sensor)955{956 struct i2c_client *client = to_i2c_client(sensor->dev);957 const struct v4l2_ctrl_ops *ops = &ov2680_ctrl_ops;958 struct ov2680_ctrls *ctrls = &sensor->ctrls;959 struct v4l2_ctrl_handler *hdl = &ctrls->handler;960 struct v4l2_fwnode_device_properties props;961 int def, max, ret = 0;962 963 v4l2_i2c_subdev_init(&sensor->sd, client, &ov2680_subdev_ops);964 sensor->sd.internal_ops = &ov2680_internal_ops;965 966 sensor->sd.flags = V4L2_SUBDEV_FL_HAS_DEVNODE;967 sensor->pad.flags = MEDIA_PAD_FL_SOURCE;968 sensor->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;969 970 ret = media_entity_pads_init(&sensor->sd.entity, 1, &sensor->pad);971 if (ret < 0)972 return ret;973 974 v4l2_ctrl_handler_init(hdl, 11);975 976 hdl->lock = &sensor->lock;977 978 ctrls->vflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VFLIP, 0, 1, 1, 0);979 ctrls->hflip = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HFLIP, 0, 1, 1, 0);980 981 ctrls->test_pattern = v4l2_ctrl_new_std_menu_items(hdl,982 &ov2680_ctrl_ops, V4L2_CID_TEST_PATTERN,983 ARRAY_SIZE(test_pattern_menu) - 1,984 0, 0, test_pattern_menu);985 986 max = OV2680_LINES_PER_FRAME_30FPS - OV2680_INTEGRATION_TIME_MARGIN;987 ctrls->exposure = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_EXPOSURE,988 0, max, 1, max);989 990 ctrls->gain = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_ANALOGUE_GAIN,991 0, 1023, 1, 250);992 993 ctrls->link_freq = v4l2_ctrl_new_int_menu(hdl, NULL, V4L2_CID_LINK_FREQ,994 0, 0, sensor->link_freq);995 ctrls->pixel_rate = v4l2_ctrl_new_std(hdl, NULL, V4L2_CID_PIXEL_RATE,996 0, sensor->pixel_rate,997 1, sensor->pixel_rate);998 999 max = OV2680_MAX_VBLANK - OV2680_DEFAULT_HEIGHT;1000 def = OV2680_LINES_PER_FRAME_30FPS - OV2680_DEFAULT_HEIGHT;1001 ctrls->vblank = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_VBLANK,1002 OV2680_MIN_VBLANK, max, 1, def);1003 1004 def = OV2680_PIXELS_PER_LINE - OV2680_DEFAULT_WIDTH;1005 ctrls->hblank = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_HBLANK,1006 def, def, 1, def);1007 1008 ret = v4l2_fwnode_device_parse(sensor->dev, &props);1009 if (ret)1010 goto cleanup_entity;1011 1012 v4l2_ctrl_new_fwnode_properties(hdl, ops, &props);1013 1014 if (hdl->error) {1015 ret = hdl->error;1016 goto cleanup_entity;1017 }1018 1019 ctrls->vflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;1020 ctrls->hflip->flags |= V4L2_CTRL_FLAG_MODIFY_LAYOUT;1021 ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;1022 ctrls->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;1023 1024 sensor->sd.ctrl_handler = hdl;1025 1026 ret = v4l2_async_register_subdev(&sensor->sd);1027 if (ret < 0)1028 goto cleanup_entity;1029 1030 return 0;1031 1032cleanup_entity:1033 media_entity_cleanup(&sensor->sd.entity);1034 v4l2_ctrl_handler_free(hdl);1035 1036 return ret;1037}1038 1039static int ov2680_get_regulators(struct ov2680_dev *sensor)1040{1041 int i;1042 1043 for (i = 0; i < OV2680_NUM_SUPPLIES; i++)1044 sensor->supplies[i].supply = ov2680_supply_name[i];1045 1046 return devm_regulator_bulk_get(sensor->dev,1047 OV2680_NUM_SUPPLIES, sensor->supplies);1048}1049 1050static int ov2680_check_id(struct ov2680_dev *sensor)1051{1052 u64 chip_id, rev;1053 int ret = 0;1054 1055 cci_read(sensor->regmap, OV2680_REG_CHIP_ID, &chip_id, &ret);1056 cci_read(sensor->regmap, OV2680_REG_SC_CMMN_SUB_ID, &rev, &ret);1057 if (ret < 0) {1058 dev_err(sensor->dev, "failed to read chip id\n");1059 return ret;1060 }1061 1062 if (chip_id != OV2680_CHIP_ID) {1063 dev_err(sensor->dev, "chip id: 0x%04llx does not match expected 0x%04x\n",1064 chip_id, OV2680_CHIP_ID);1065 return -ENODEV;1066 }1067 1068 dev_info(sensor->dev, "sensor_revision id = 0x%llx, rev= %lld\n",1069 chip_id, rev & 0x0f);1070 1071 return 0;1072}1073 1074static int ov2680_parse_dt(struct ov2680_dev *sensor)1075{1076 struct v4l2_fwnode_endpoint bus_cfg = {1077 .bus_type = V4L2_MBUS_CSI2_DPHY,1078 };1079 struct device *dev = sensor->dev;1080 struct fwnode_handle *ep_fwnode;1081 struct gpio_desc *gpio;1082 unsigned int rate = 0;1083 int i, ret;1084 1085 /*1086 * Sometimes the fwnode graph is initialized by the bridge driver.1087 * Bridge drivers doing this may also add GPIO mappings, wait for this.1088 */1089 ep_fwnode = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL);1090 if (!ep_fwnode)1091 return dev_err_probe(dev, -EPROBE_DEFER,1092 "waiting for fwnode graph endpoint\n");1093 1094 ret = v4l2_fwnode_endpoint_alloc_parse(ep_fwnode, &bus_cfg);1095 fwnode_handle_put(ep_fwnode);1096 if (ret)1097 return ret;1098 1099 /*1100 * The pin we want is named XSHUTDN in the datasheet. Linux sensor1101 * drivers have standardized on using "powerdown" as con-id name1102 * for powerdown or shutdown pins. Older DTB files use "reset",1103 * so fallback to that if there is no "powerdown" pin.1104 */1105 gpio = devm_gpiod_get_optional(dev, "powerdown", GPIOD_OUT_HIGH);1106 if (!gpio)1107 gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);1108 1109 ret = PTR_ERR_OR_ZERO(gpio);1110 if (ret < 0) {1111 dev_dbg(dev, "error while getting reset gpio: %d\n", ret);1112 goto out_free_bus_cfg;1113 }1114 1115 sensor->pwdn_gpio = gpio;1116 1117 sensor->xvclk = devm_clk_get_optional(dev, "xvclk");1118 if (IS_ERR(sensor->xvclk)) {1119 ret = dev_err_probe(dev, PTR_ERR(sensor->xvclk),1120 "xvclk clock missing or invalid\n");1121 goto out_free_bus_cfg;1122 }1123 1124 /*1125 * We could have either a 24MHz or 19.2MHz clock rate from either DT or1126 * ACPI... but we also need to support the weird IPU3 case which will1127 * have an external clock AND a clock-frequency property. Check for the1128 * clock-frequency property and if found, set that rate if we managed1129 * to acquire a clock. This should cover the ACPI case. If the system1130 * uses devicetree then the configured rate should already be set, so1131 * we can just read it.1132 */1133 ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",1134 &rate);1135 if (ret && !sensor->xvclk) {1136 dev_err_probe(dev, ret, "invalid clock config\n");1137 goto out_free_bus_cfg;1138 }1139 1140 if (!ret && sensor->xvclk) {1141 ret = clk_set_rate(sensor->xvclk, rate);1142 if (ret) {1143 dev_err_probe(dev, ret, "failed to set clock rate\n");1144 goto out_free_bus_cfg;1145 }1146 }1147 1148 sensor->xvclk_freq = rate ?: clk_get_rate(sensor->xvclk);1149 1150 for (i = 0; i < ARRAY_SIZE(ov2680_xvclk_freqs); i++) {1151 if (sensor->xvclk_freq == ov2680_xvclk_freqs[i])1152 break;1153 }1154 1155 if (i == ARRAY_SIZE(ov2680_xvclk_freqs)) {1156 ret = dev_err_probe(dev, -EINVAL,1157 "unsupported xvclk frequency %d Hz\n",1158 sensor->xvclk_freq);1159 goto out_free_bus_cfg;1160 }1161 1162 sensor->pll_mult = ov2680_pll_multipliers[i];1163 1164 sensor->link_freq[0] = sensor->xvclk_freq / OV2680_PLL_PREDIV0 /1165 OV2680_PLL_PREDIV * sensor->pll_mult;1166 1167 /* CSI-2 is double data rate, bus-format is 10 bpp */1168 sensor->pixel_rate = sensor->link_freq[0] * 2;1169 do_div(sensor->pixel_rate, 10);1170 1171 if (!bus_cfg.nr_of_link_frequencies) {1172 dev_warn(dev, "Consider passing 'link-frequencies' in DT\n");1173 goto skip_link_freq_validation;1174 }1175 1176 for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++)1177 if (bus_cfg.link_frequencies[i] == sensor->link_freq[0])1178 break;1179 1180 if (bus_cfg.nr_of_link_frequencies == i) {1181 ret = dev_err_probe(dev, -EINVAL,1182 "supported link freq %lld not found\n",1183 sensor->link_freq[0]);1184 goto out_free_bus_cfg;1185 }1186 1187skip_link_freq_validation:1188 ret = 0;1189out_free_bus_cfg:1190 v4l2_fwnode_endpoint_free(&bus_cfg);1191 return ret;1192}1193 1194static int ov2680_probe(struct i2c_client *client)1195{1196 struct device *dev = &client->dev;1197 struct ov2680_dev *sensor;1198 int ret;1199 1200 sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);1201 if (!sensor)1202 return -ENOMEM;1203 1204 sensor->dev = &client->dev;1205 1206 sensor->regmap = devm_cci_regmap_init_i2c(client, 16);1207 if (IS_ERR(sensor->regmap))1208 return PTR_ERR(sensor->regmap);1209 1210 ret = ov2680_parse_dt(sensor);1211 if (ret < 0)1212 return ret;1213 1214 ret = ov2680_mode_init(sensor);1215 if (ret < 0)1216 return ret;1217 1218 ret = ov2680_get_regulators(sensor);1219 if (ret < 0) {1220 dev_err(dev, "failed to get regulators\n");1221 return ret;1222 }1223 1224 mutex_init(&sensor->lock);1225 1226 /*1227 * Power up and verify the chip now, so that if runtime pm is1228 * disabled the chip is left on and streaming will work.1229 */1230 ret = ov2680_power_on(sensor);1231 if (ret < 0)1232 goto lock_destroy;1233 1234 ret = ov2680_check_id(sensor);1235 if (ret < 0)1236 goto err_powerdown;1237 1238 pm_runtime_set_active(&client->dev);1239 pm_runtime_get_noresume(&client->dev);1240 pm_runtime_enable(&client->dev);1241 1242 ret = ov2680_v4l2_register(sensor);1243 if (ret < 0)1244 goto err_pm_runtime;1245 1246 pm_runtime_set_autosuspend_delay(&client->dev, 1000);1247 pm_runtime_use_autosuspend(&client->dev);1248 pm_runtime_put_autosuspend(&client->dev);1249 1250 return 0;1251 1252err_pm_runtime:1253 pm_runtime_disable(&client->dev);1254 pm_runtime_put_noidle(&client->dev);1255err_powerdown:1256 ov2680_power_off(sensor);1257lock_destroy:1258 dev_err(dev, "ov2680 init fail: %d\n", ret);1259 mutex_destroy(&sensor->lock);1260 1261 return ret;1262}1263 1264static void ov2680_remove(struct i2c_client *client)1265{1266 struct v4l2_subdev *sd = i2c_get_clientdata(client);1267 struct ov2680_dev *sensor = to_ov2680_dev(sd);1268 1269 v4l2_async_unregister_subdev(&sensor->sd);1270 mutex_destroy(&sensor->lock);1271 media_entity_cleanup(&sensor->sd.entity);1272 v4l2_ctrl_handler_free(&sensor->ctrls.handler);1273 1274 /*1275 * Disable runtime PM. In case runtime PM is disabled in the kernel,1276 * make sure to turn power off manually.1277 */1278 pm_runtime_disable(&client->dev);1279 if (!pm_runtime_status_suspended(&client->dev))1280 ov2680_power_off(sensor);1281 pm_runtime_set_suspended(&client->dev);1282}1283 1284static int ov2680_suspend(struct device *dev)1285{1286 struct v4l2_subdev *sd = dev_get_drvdata(dev);1287 struct ov2680_dev *sensor = to_ov2680_dev(sd);1288 1289 if (sensor->is_streaming)1290 ov2680_stream_disable(sensor);1291 1292 return ov2680_power_off(sensor);1293}1294 1295static int ov2680_resume(struct device *dev)1296{1297 struct v4l2_subdev *sd = dev_get_drvdata(dev);1298 struct ov2680_dev *sensor = to_ov2680_dev(sd);1299 int ret;1300 1301 ret = ov2680_power_on(sensor);1302 if (ret < 0)1303 goto stream_disable;1304 1305 if (sensor->is_streaming) {1306 ret = ov2680_stream_enable(sensor);1307 if (ret < 0)1308 goto stream_disable;1309 }1310 1311 return 0;1312 1313stream_disable:1314 ov2680_stream_disable(sensor);1315 sensor->is_streaming = false;1316 1317 return ret;1318}1319 1320static DEFINE_RUNTIME_DEV_PM_OPS(ov2680_pm_ops, ov2680_suspend, ov2680_resume,1321 NULL);1322 1323static const struct of_device_id ov2680_dt_ids[] = {1324 { .compatible = "ovti,ov2680" },1325 { /* sentinel */ },1326};1327MODULE_DEVICE_TABLE(of, ov2680_dt_ids);1328 1329static const struct acpi_device_id ov2680_acpi_ids[] = {1330 { "OVTI2680" },1331 { /* sentinel */ }1332};1333MODULE_DEVICE_TABLE(acpi, ov2680_acpi_ids);1334 1335static struct i2c_driver ov2680_i2c_driver = {1336 .driver = {1337 .name = "ov2680",1338 .pm = pm_sleep_ptr(&ov2680_pm_ops),1339 .of_match_table = ov2680_dt_ids,1340 .acpi_match_table = ov2680_acpi_ids,1341 },1342 .probe = ov2680_probe,1343 .remove = ov2680_remove,1344};1345module_i2c_driver(ov2680_i2c_driver);1346 1347MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>");1348MODULE_DESCRIPTION("OV2680 CMOS Image Sensor driver");1349MODULE_LICENSE("GPL v2");1350