drivers/media/i2c/soc_camera/mt9m111.c

   1 /*
   2  * Driver for MT9M111/MT9M112/MT9M131 CMOS Image Sensor from Micron/Aptina
   3  *
   4  * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #include <linux/videodev2.h>
  11 #include <linux/slab.h>
  12 #include <linux/i2c.h>
  13 #include <linux/log2.h>
  14 #include <linux/gpio.h>
  15 #include <linux/delay.h>
  16 #include <linux/v4l2-mediabus.h>
  17 #include <linux/module.h>
  18
  19 #include <media/soc_camera.h>
  20 #include <media/v4l2-clk.h>
  21 #include <media/v4l2-common.h>
  22 #include <media/v4l2-ctrls.h>
  23
  24 /*
  25  * MT9M111, MT9M112 and MT9M131:
  26  * i2c address is 0x48 or 0x5d (depending on SADDR pin)
  27  * The platform has to define struct i2c_board_info objects and link to them
  28  * from struct soc_camera_host_desc
  29  */
  30
  31 /*
  32  * Sensor core register addresses (0x000..0x0ff)
  33  */
  34 #define MT9M111_CHIP_VERSION            0x000
  35 #define MT9M111_ROW_START               0x001
  36 #define MT9M111_COLUMN_START            0x002
  37 #define MT9M111_WINDOW_HEIGHT           0x003
  38 #define MT9M111_WINDOW_WIDTH            0x004
  39 #define MT9M111_HORIZONTAL_BLANKING_B   0x005
  40 #define MT9M111_VERTICAL_BLANKING_B     0x006
  41 #define MT9M111_HORIZONTAL_BLANKING_A   0x007
  42 #define MT9M111_VERTICAL_BLANKING_A     0x008
  43 #define MT9M111_SHUTTER_WIDTH           0x009
  44 #define MT9M111_ROW_SPEED               0x00a
  45 #define MT9M111_EXTRA_DELAY             0x00b
  46 #define MT9M111_SHUTTER_DELAY           0x00c
  47 #define MT9M111_RESET                   0x00d
  48 #define MT9M111_READ_MODE_B             0x020
  49 #define MT9M111_READ_MODE_A             0x021
  50 #define MT9M111_FLASH_CONTROL           0x023
  51 #define MT9M111_GREEN1_GAIN             0x02b
  52 #define MT9M111_BLUE_GAIN               0x02c
  53 #define MT9M111_RED_GAIN                0x02d
  54 #define MT9M111_GREEN2_GAIN             0x02e
  55 #define MT9M111_GLOBAL_GAIN             0x02f
  56 #define MT9M111_CONTEXT_CONTROL         0x0c8
  57 #define MT9M111_PAGE_MAP                0x0f0
  58 #define MT9M111_BYTE_WISE_ADDR          0x0f1
  59
  60 #define MT9M111_RESET_SYNC_CHANGES      (1 << 15)
  61 #define MT9M111_RESET_RESTART_BAD_FRAME (1 << 9)
  62 #define MT9M111_RESET_SHOW_BAD_FRAMES   (1 << 8)
  63 #define MT9M111_RESET_RESET_SOC         (1 << 5)
  64 #define MT9M111_RESET_OUTPUT_DISABLE    (1 << 4)
  65 #define MT9M111_RESET_CHIP_ENABLE       (1 << 3)
  66 #define MT9M111_RESET_ANALOG_STANDBY    (1 << 2)
  67 #define MT9M111_RESET_RESTART_FRAME     (1 << 1)
  68 #define MT9M111_RESET_RESET_MODE        (1 << 0)
  69
  70 #define MT9M111_RM_FULL_POWER_RD        (0 << 10)
  71 #define MT9M111_RM_LOW_POWER_RD         (1 << 10)
  72 #define MT9M111_RM_COL_SKIP_4X          (1 << 5)
  73 #define MT9M111_RM_ROW_SKIP_4X          (1 << 4)
  74 #define MT9M111_RM_COL_SKIP_2X          (1 << 3)
  75 #define MT9M111_RM_ROW_SKIP_2X          (1 << 2)
  76 #define MT9M111_RMB_MIRROR_COLS         (1 << 1)
  77 #define MT9M111_RMB_MIRROR_ROWS         (1 << 0)
  78 #define MT9M111_CTXT_CTRL_RESTART       (1 << 15)
  79 #define MT9M111_CTXT_CTRL_DEFECTCOR_B   (1 << 12)
  80 #define MT9M111_CTXT_CTRL_RESIZE_B      (1 << 10)
  81 #define MT9M111_CTXT_CTRL_CTRL2_B       (1 << 9)
  82 #define MT9M111_CTXT_CTRL_GAMMA_B       (1 << 8)
  83 #define MT9M111_CTXT_CTRL_XENON_EN      (1 << 7)
  84 #define MT9M111_CTXT_CTRL_READ_MODE_B   (1 << 3)
  85 #define MT9M111_CTXT_CTRL_LED_FLASH_EN  (1 << 2)
  86 #define MT9M111_CTXT_CTRL_VBLANK_SEL_B  (1 << 1)
  87 #define MT9M111_CTXT_CTRL_HBLANK_SEL_B  (1 << 0)
  88
  89 /*
  90  * Colorpipe register addresses (0x100..0x1ff)
  91  */
  92 #define MT9M111_OPER_MODE_CTRL          0x106
  93 #define MT9M111_OUTPUT_FORMAT_CTRL      0x108
  94 #define MT9M111_REDUCER_XZOOM_B         0x1a0
  95 #define MT9M111_REDUCER_XSIZE_B         0x1a1
  96 #define MT9M111_REDUCER_YZOOM_B         0x1a3
  97 #define MT9M111_REDUCER_YSIZE_B         0x1a4
  98 #define MT9M111_REDUCER_XZOOM_A         0x1a6
  99 #define MT9M111_REDUCER_XSIZE_A         0x1a7
 100 #define MT9M111_REDUCER_YZOOM_A         0x1a9
 101 #define MT9M111_REDUCER_YSIZE_A         0x1aa
 102
 103 #define MT9M111_OUTPUT_FORMAT_CTRL2_A   0x13a
 104 #define MT9M111_OUTPUT_FORMAT_CTRL2_B   0x19b
 105
 106 #define MT9M111_OPMODE_AUTOEXPO_EN      (1 << 14)
 107 #define MT9M111_OPMODE_AUTOWHITEBAL_EN  (1 << 1)
 108 #define MT9M111_OUTFMT_FLIP_BAYER_COL   (1 << 9)
 109 #define MT9M111_OUTFMT_FLIP_BAYER_ROW   (1 << 8)
 110 #define MT9M111_OUTFMT_PROCESSED_BAYER  (1 << 14)
 111 #define MT9M111_OUTFMT_BYPASS_IFP       (1 << 10)
 112 #define MT9M111_OUTFMT_INV_PIX_CLOCK    (1 << 9)
 113 #define MT9M111_OUTFMT_RGB              (1 << 8)
 114 #define MT9M111_OUTFMT_RGB565           (0 << 6)
 115 #define MT9M111_OUTFMT_RGB555           (1 << 6)
 116 #define MT9M111_OUTFMT_RGB444x          (2 << 6)
 117 #define MT9M111_OUTFMT_RGBx444          (3 << 6)
 118 #define MT9M111_OUTFMT_TST_RAMP_OFF     (0 << 4)
 119 #define MT9M111_OUTFMT_TST_RAMP_COL     (1 << 4)
 120 #define MT9M111_OUTFMT_TST_RAMP_ROW     (2 << 4)
 121 #define MT9M111_OUTFMT_TST_RAMP_FRAME   (3 << 4)
 122 #define MT9M111_OUTFMT_SHIFT_3_UP       (1 << 3)
 123 #define MT9M111_OUTFMT_AVG_CHROMA       (1 << 2)
 124 #define MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN  (1 << 1)
 125 #define MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B (1 << 0)
 126
 127 /*
 128  * Camera control register addresses (0x200..0x2ff not implemented)
 129  */
 130
 131 #define reg_read(reg) mt9m111_reg_read(client, MT9M111_##reg)
 132 #define reg_write(reg, val) mt9m111_reg_write(client, MT9M111_##reg, (val))
 133 #define reg_set(reg, val) mt9m111_reg_set(client, MT9M111_##reg, (val))
 134 #define reg_clear(reg, val) mt9m111_reg_clear(client, MT9M111_##reg, (val))
 135 #define reg_mask(reg, val, mask) mt9m111_reg_mask(client, MT9M111_##reg, \
 136                 (val), (mask))
 137
 138 #define MT9M111_MIN_DARK_ROWS   8
 139 #define MT9M111_MIN_DARK_COLS   26
 140 #define MT9M111_MAX_HEIGHT      1024
 141 #define MT9M111_MAX_WIDTH       1280
 142
 143 struct mt9m111_context {
 144         u16 read_mode;
 145         u16 blanking_h;
 146         u16 blanking_v;
 147         u16 reducer_xzoom;
 148         u16 reducer_yzoom;
 149         u16 reducer_xsize;
 150         u16 reducer_ysize;
 151         u16 output_fmt_ctrl2;
 152         u16 control;
 153 };
 154
 155 static struct mt9m111_context context_a = {
 156         .read_mode              = MT9M111_READ_MODE_A,
 157         .blanking_h             = MT9M111_HORIZONTAL_BLANKING_A,
 158         .blanking_v             = MT9M111_VERTICAL_BLANKING_A,
 159         .reducer_xzoom          = MT9M111_REDUCER_XZOOM_A,
 160         .reducer_yzoom          = MT9M111_REDUCER_YZOOM_A,
 161         .reducer_xsize          = MT9M111_REDUCER_XSIZE_A,
 162         .reducer_ysize          = MT9M111_REDUCER_YSIZE_A,
 163         .output_fmt_ctrl2       = MT9M111_OUTPUT_FORMAT_CTRL2_A,
 164         .control                = MT9M111_CTXT_CTRL_RESTART,
 165 };
 166
 167 static struct mt9m111_context context_b = {
 168         .read_mode              = MT9M111_READ_MODE_B,
 169         .blanking_h             = MT9M111_HORIZONTAL_BLANKING_B,
 170         .blanking_v             = MT9M111_VERTICAL_BLANKING_B,
 171         .reducer_xzoom          = MT9M111_REDUCER_XZOOM_B,
 172         .reducer_yzoom          = MT9M111_REDUCER_YZOOM_B,
 173         .reducer_xsize          = MT9M111_REDUCER_XSIZE_B,
 174         .reducer_ysize          = MT9M111_REDUCER_YSIZE_B,
 175         .output_fmt_ctrl2       = MT9M111_OUTPUT_FORMAT_CTRL2_B,
 176         .control                = MT9M111_CTXT_CTRL_RESTART |
 177                 MT9M111_CTXT_CTRL_DEFECTCOR_B | MT9M111_CTXT_CTRL_RESIZE_B |
 178                 MT9M111_CTXT_CTRL_CTRL2_B | MT9M111_CTXT_CTRL_GAMMA_B |
 179                 MT9M111_CTXT_CTRL_READ_MODE_B | MT9M111_CTXT_CTRL_VBLANK_SEL_B |
 180                 MT9M111_CTXT_CTRL_HBLANK_SEL_B,
 181 };
 182
 183 /* MT9M111 has only one fixed colorspace per pixelcode */
 184 struct mt9m111_datafmt {
 185         u32     code;
 186         enum v4l2_colorspace            colorspace;
 187 };
 188
 189 static const struct mt9m111_datafmt mt9m111_colour_fmts[] = {
 190         {MEDIA_BUS_FMT_YUYV8_2X8, V4L2_COLORSPACE_JPEG},
 191         {MEDIA_BUS_FMT_YVYU8_2X8, V4L2_COLORSPACE_JPEG},
 192         {MEDIA_BUS_FMT_UYVY8_2X8, V4L2_COLORSPACE_JPEG},
 193         {MEDIA_BUS_FMT_VYUY8_2X8, V4L2_COLORSPACE_JPEG},
 194         {MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
 195         {MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE, V4L2_COLORSPACE_SRGB},
 196         {MEDIA_BUS_FMT_RGB565_2X8_LE, V4L2_COLORSPACE_SRGB},
 197         {MEDIA_BUS_FMT_RGB565_2X8_BE, V4L2_COLORSPACE_SRGB},
 198         {MEDIA_BUS_FMT_BGR565_2X8_LE, V4L2_COLORSPACE_SRGB},
 199         {MEDIA_BUS_FMT_BGR565_2X8_BE, V4L2_COLORSPACE_SRGB},
 200         {MEDIA_BUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB},
 201         {MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE, V4L2_COLORSPACE_SRGB},
 202 };
 203
 204 struct mt9m111 {
 205         struct v4l2_subdev subdev;
 206         struct v4l2_ctrl_handler hdl;
 207         struct v4l2_ctrl *gain;
 208         struct mt9m111_context *ctx;
 209         struct v4l2_rect rect;  /* cropping rectangle */
 210         struct v4l2_clk *clk;
 211         unsigned int width;     /* output */
 212         unsigned int height;    /* sizes */
 213         struct mutex power_lock; /* lock to protect power_count */
 214         int power_count;
 215         const struct mt9m111_datafmt *fmt;
 216         int lastpage;   /* PageMap cache value */
 217 };
 218
 219 /* Find a data format by a pixel code */
 220 static const struct mt9m111_datafmt *mt9m111_find_datafmt(struct mt9m111 *mt9m111,
 221                                                 u32 code)
 222 {
 223         int i;
 224         for (i = 0; i < ARRAY_SIZE(mt9m111_colour_fmts); i++)
 225                 if (mt9m111_colour_fmts[i].code == code)
 226                         return mt9m111_colour_fmts + i;
 227
 228         return mt9m111->fmt;
 229 }
 230
 231 static struct mt9m111 *to_mt9m111(const struct i2c_client *client)
 232 {
 233         return container_of(i2c_get_clientdata(client), struct mt9m111, subdev);
 234 }
 235
 236 static int reg_page_map_set(struct i2c_client *client, const u16 reg)
 237 {
 238         int ret;
 239         u16 page;
 240         struct mt9m111 *mt9m111 = to_mt9m111(client);
 241
 242         page = (reg >> 8);
 243         if (page == mt9m111->lastpage)
 244                 return 0;
 245         if (page > 2)
 246                 return -EINVAL;
 247
 248         ret = i2c_smbus_write_word_swapped(client, MT9M111_PAGE_MAP, page);
 249         if (!ret)
 250                 mt9m111->lastpage = page;
 251         return ret;
 252 }
 253
 254 static int mt9m111_reg_read(struct i2c_client *client, const u16 reg)
 255 {
 256         int ret;
 257
 258         ret = reg_page_map_set(client, reg);
 259         if (!ret)
 260                 ret = i2c_smbus_read_word_swapped(client, reg & 0xff);
 261
 262         dev_dbg(&client->dev, "read  reg.%03x -> %04x\n", reg, ret);
 263         return ret;
 264 }
 265
 266 static int mt9m111_reg_write(struct i2c_client *client, const u16 reg,
 267                              const u16 data)
 268 {
 269         int ret;
 270
 271         ret = reg_page_map_set(client, reg);
 272         if (!ret)
 273                 ret = i2c_smbus_write_word_swapped(client, reg & 0xff, data);
 274         dev_dbg(&client->dev, "write reg.%03x = %04x -> %d\n", reg, data, ret);
 275         return ret;
 276 }
 277
 278 static int mt9m111_reg_set(struct i2c_client *client, const u16 reg,
 279                            const u16 data)
 280 {
 281         int ret;
 282
 283         ret = mt9m111_reg_read(client, reg);
 284         if (ret >= 0)
 285                 ret = mt9m111_reg_write(client, reg, ret | data);
 286         return ret;
 287 }
 288
 289 static int mt9m111_reg_clear(struct i2c_client *client, const u16 reg,
 290                              const u16 data)
 291 {
 292         int ret;
 293
 294         ret = mt9m111_reg_read(client, reg);
 295         if (ret >= 0)
 296                 ret = mt9m111_reg_write(client, reg, ret & ~data);
 297         return ret;
 298 }
 299
 300 static int mt9m111_reg_mask(struct i2c_client *client, const u16 reg,
 301                             const u16 data, const u16 mask)
 302 {
 303         int ret;
 304
 305         ret = mt9m111_reg_read(client, reg);
 306         if (ret >= 0)
 307                 ret = mt9m111_reg_write(client, reg, (ret & ~mask) | data);
 308         return ret;
 309 }
 310
 311 static int mt9m111_set_context(struct mt9m111 *mt9m111,
 312                                struct mt9m111_context *ctx)
 313 {
 314         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 315         return reg_write(CONTEXT_CONTROL, ctx->control);
 316 }
 317
 318 static int mt9m111_setup_rect_ctx(struct mt9m111 *mt9m111,
 319                         struct mt9m111_context *ctx, struct v4l2_rect *rect,
 320                         unsigned int width, unsigned int height)
 321 {
 322         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 323         int ret = mt9m111_reg_write(client, ctx->reducer_xzoom, rect->width);
 324         if (!ret)
 325                 ret = mt9m111_reg_write(client, ctx->reducer_yzoom, rect->height);
 326         if (!ret)
 327                 ret = mt9m111_reg_write(client, ctx->reducer_xsize, width);
 328         if (!ret)
 329                 ret = mt9m111_reg_write(client, ctx->reducer_ysize, height);
 330         return ret;
 331 }
 332
 333 static int mt9m111_setup_geometry(struct mt9m111 *mt9m111, struct v4l2_rect *rect,
 334                         int width, int height, u32 code)
 335 {
 336         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 337         int ret;
 338
 339         ret = reg_write(COLUMN_START, rect->left);
 340         if (!ret)
 341                 ret = reg_write(ROW_START, rect->top);
 342
 343         if (!ret)
 344                 ret = reg_write(WINDOW_WIDTH, rect->width);
 345         if (!ret)
 346                 ret = reg_write(WINDOW_HEIGHT, rect->height);
 347
 348         if (code != MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
 349                 /* IFP in use, down-scaling possible */
 350                 if (!ret)
 351                         ret = mt9m111_setup_rect_ctx(mt9m111, &context_b,
 352                                                      rect, width, height);
 353                 if (!ret)
 354                         ret = mt9m111_setup_rect_ctx(mt9m111, &context_a,
 355                                                      rect, width, height);
 356         }
 357
 358         dev_dbg(&client->dev, "%s(%x): %ux%u@%u:%u -> %ux%u = %d\n",
 359                 __func__, code, rect->width, rect->height, rect->left, rect->top,
 360                 width, height, ret);
 361
 362         return ret;
 363 }
 364
 365 static int mt9m111_enable(struct mt9m111 *mt9m111)
 366 {
 367         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 368         return reg_write(RESET, MT9M111_RESET_CHIP_ENABLE);
 369 }
 370
 371 static int mt9m111_reset(struct mt9m111 *mt9m111)
 372 {
 373         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 374         int ret;
 375
 376         ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
 377         if (!ret)
 378                 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC);
 379         if (!ret)
 380                 ret = reg_clear(RESET, MT9M111_RESET_RESET_MODE
 381                                 | MT9M111_RESET_RESET_SOC);
 382
 383         return ret;
 384 }
 385
 386 static int mt9m111_s_crop(struct v4l2_subdev *sd, const struct v4l2_crop *a)
 387 {
 388         struct v4l2_rect rect = a->c;
 389         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 390         int width, height;
 391         int ret;
 392
 393         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 394                 return -EINVAL;
 395
 396         if (mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
 397             mt9m111->fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
 398                 /* Bayer format - even size lengths */
 399                 rect.width      = ALIGN(rect.width, 2);
 400                 rect.height     = ALIGN(rect.height, 2);
 401                 /* Let the user play with the starting pixel */
 402         }
 403
 404         /* FIXME: the datasheet doesn't specify minimum sizes */
 405         soc_camera_limit_side(&rect.left, &rect.width,
 406                      MT9M111_MIN_DARK_COLS, 2, MT9M111_MAX_WIDTH);
 407
 408         soc_camera_limit_side(&rect.top, &rect.height,
 409                      MT9M111_MIN_DARK_ROWS, 2, MT9M111_MAX_HEIGHT);
 410
 411         width = min(mt9m111->width, rect.width);
 412         height = min(mt9m111->height, rect.height);
 413
 414         ret = mt9m111_setup_geometry(mt9m111, &rect, width, height, mt9m111->fmt->code);
 415         if (!ret) {
 416                 mt9m111->rect = rect;
 417                 mt9m111->width = width;
 418                 mt9m111->height = height;
 419         }
 420
 421         return ret;
 422 }
 423
 424 static int mt9m111_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a)
 425 {
 426         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 427
 428         a->c    = mt9m111->rect;
 429         a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 430
 431         return 0;
 432 }
 433
 434 static int mt9m111_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a)
 435 {
 436         if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 437                 return -EINVAL;
 438
 439         a->bounds.left                  = MT9M111_MIN_DARK_COLS;
 440         a->bounds.top                   = MT9M111_MIN_DARK_ROWS;
 441         a->bounds.width                 = MT9M111_MAX_WIDTH;
 442         a->bounds.height                = MT9M111_MAX_HEIGHT;
 443         a->defrect                      = a->bounds;
 444         a->pixelaspect.numerator        = 1;
 445         a->pixelaspect.denominator      = 1;
 446
 447         return 0;
 448 }
 449
 450 static int mt9m111_get_fmt(struct v4l2_subdev *sd,
 451                 struct v4l2_subdev_pad_config *cfg,
 452                 struct v4l2_subdev_format *format)
 453 {
 454         struct v4l2_mbus_framefmt *mf = &format->format;
 455         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 456
 457         if (format->pad)
 458                 return -EINVAL;
 459
 460         mf->width       = mt9m111->width;
 461         mf->height      = mt9m111->height;
 462         mf->code        = mt9m111->fmt->code;
 463         mf->colorspace  = mt9m111->fmt->colorspace;
 464         mf->field       = V4L2_FIELD_NONE;
 465
 466         return 0;
 467 }
 468
 469 static int mt9m111_set_pixfmt(struct mt9m111 *mt9m111,
 470                               u32 code)
 471 {
 472         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 473         u16 data_outfmt2, mask_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
 474                 MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB |
 475                 MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 |
 476                 MT9M111_OUTFMT_RGB444x | MT9M111_OUTFMT_RGBx444 |
 477                 MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 478                 MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 479         int ret;
 480
 481         switch (code) {
 482         case MEDIA_BUS_FMT_SBGGR8_1X8:
 483                 data_outfmt2 = MT9M111_OUTFMT_PROCESSED_BAYER |
 484                         MT9M111_OUTFMT_RGB;
 485                 break;
 486         case MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE:
 487                 data_outfmt2 = MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_RGB;
 488                 break;
 489         case MEDIA_BUS_FMT_RGB555_2X8_PADHI_LE:
 490                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555 |
 491                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 492                 break;
 493         case MEDIA_BUS_FMT_RGB555_2X8_PADHI_BE:
 494                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB555;
 495                 break;
 496         case MEDIA_BUS_FMT_RGB565_2X8_LE:
 497                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 498                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 499                 break;
 500         case MEDIA_BUS_FMT_RGB565_2X8_BE:
 501                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565;
 502                 break;
 503         case MEDIA_BUS_FMT_BGR565_2X8_BE:
 504                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 505                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 506                 break;
 507         case MEDIA_BUS_FMT_BGR565_2X8_LE:
 508                 data_outfmt2 = MT9M111_OUTFMT_RGB | MT9M111_OUTFMT_RGB565 |
 509                         MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 510                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 511                 break;
 512         case MEDIA_BUS_FMT_UYVY8_2X8:
 513                 data_outfmt2 = 0;
 514                 break;
 515         case MEDIA_BUS_FMT_VYUY8_2X8:
 516                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 517                 break;
 518         case MEDIA_BUS_FMT_YUYV8_2X8:
 519                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN;
 520                 break;
 521         case MEDIA_BUS_FMT_YVYU8_2X8:
 522                 data_outfmt2 = MT9M111_OUTFMT_SWAP_YCbCr_C_Y_RGB_EVEN |
 523                         MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr_RGB_R_B;
 524                 break;
 525         default:
 526                 dev_err(&client->dev, "Pixel format not handled: %x\n", code);
 527                 return -EINVAL;
 528         }
 529
 530         ret = mt9m111_reg_mask(client, context_a.output_fmt_ctrl2,
 531                                data_outfmt2, mask_outfmt2);
 532         if (!ret)
 533                 ret = mt9m111_reg_mask(client, context_b.output_fmt_ctrl2,
 534                                        data_outfmt2, mask_outfmt2);
 535
 536         return ret;
 537 }
 538
 539 static int mt9m111_set_fmt(struct v4l2_subdev *sd,
 540                 struct v4l2_subdev_pad_config *cfg,
 541                 struct v4l2_subdev_format *format)
 542 {
 543         struct v4l2_mbus_framefmt *mf = &format->format;
 544         struct i2c_client *client = v4l2_get_subdevdata(sd);
 545         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 546         const struct mt9m111_datafmt *fmt;
 547         struct v4l2_rect *rect = &mt9m111->rect;
 548         bool bayer;
 549         int ret;
 550
 551         if (format->pad)
 552                 return -EINVAL;
 553
 554         fmt = mt9m111_find_datafmt(mt9m111, mf->code);
 555
 556         bayer = fmt->code == MEDIA_BUS_FMT_SBGGR8_1X8 ||
 557                 fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE;
 558
 559         /*
 560          * With Bayer format enforce even side lengths, but let the user play
 561          * with the starting pixel
 562          */
 563         if (bayer) {
 564                 rect->width = ALIGN(rect->width, 2);
 565                 rect->height = ALIGN(rect->height, 2);
 566         }
 567
 568         if (fmt->code == MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE) {
 569                 /* IFP bypass mode, no scaling */
 570                 mf->width = rect->width;
 571                 mf->height = rect->height;
 572         } else {
 573                 /* No upscaling */
 574                 if (mf->width > rect->width)
 575                         mf->width = rect->width;
 576                 if (mf->height > rect->height)
 577                         mf->height = rect->height;
 578         }
 579
 580         dev_dbg(&client->dev, "%s(): %ux%u, code=%x\n", __func__,
 581                 mf->width, mf->height, fmt->code);
 582
 583         mf->code = fmt->code;
 584         mf->colorspace = fmt->colorspace;
 585
 586         if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
 587                 cfg->try_fmt = *mf;
 588                 return 0;
 589         }
 590
 591         ret = mt9m111_setup_geometry(mt9m111, rect, mf->width, mf->height, mf->code);
 592         if (!ret)
 593                 ret = mt9m111_set_pixfmt(mt9m111, mf->code);
 594         if (!ret) {
 595                 mt9m111->width  = mf->width;
 596                 mt9m111->height = mf->height;
 597                 mt9m111->fmt    = fmt;
 598         }
 599
 600         return ret;
 601 }
 602
 603 #ifdef CONFIG_VIDEO_ADV_DEBUG
 604 static int mt9m111_g_register(struct v4l2_subdev *sd,
 605                               struct v4l2_dbg_register *reg)
 606 {
 607         struct i2c_client *client = v4l2_get_subdevdata(sd);
 608         int val;
 609
 610         if (reg->reg > 0x2ff)
 611                 return -EINVAL;
 612
 613         val = mt9m111_reg_read(client, reg->reg);
 614         reg->size = 2;
 615         reg->val = (u64)val;
 616
 617         if (reg->val > 0xffff)
 618                 return -EIO;
 619
 620         return 0;
 621 }
 622
 623 static int mt9m111_s_register(struct v4l2_subdev *sd,
 624                               const struct v4l2_dbg_register *reg)
 625 {
 626         struct i2c_client *client = v4l2_get_subdevdata(sd);
 627
 628         if (reg->reg > 0x2ff)
 629                 return -EINVAL;
 630
 631         if (mt9m111_reg_write(client, reg->reg, reg->val) < 0)
 632                 return -EIO;
 633
 634         return 0;
 635 }
 636 #endif
 637
 638 static int mt9m111_set_flip(struct mt9m111 *mt9m111, int flip, int mask)
 639 {
 640         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 641         int ret;
 642
 643         if (flip)
 644                 ret = mt9m111_reg_set(client, mt9m111->ctx->read_mode, mask);
 645         else
 646                 ret = mt9m111_reg_clear(client, mt9m111->ctx->read_mode, mask);
 647
 648         return ret;
 649 }
 650
 651 static int mt9m111_get_global_gain(struct mt9m111 *mt9m111)
 652 {
 653         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 654         int data;
 655
 656         data = reg_read(GLOBAL_GAIN);
 657         if (data >= 0)
 658                 return (data & 0x2f) * (1 << ((data >> 10) & 1)) *
 659                         (1 << ((data >> 9) & 1));
 660         return data;
 661 }
 662
 663 static int mt9m111_set_global_gain(struct mt9m111 *mt9m111, int gain)
 664 {
 665         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 666         u16 val;
 667
 668         if (gain > 63 * 2 * 2)
 669                 return -EINVAL;
 670
 671         if ((gain >= 64 * 2) && (gain < 63 * 2 * 2))
 672                 val = (1 << 10) | (1 << 9) | (gain / 4);
 673         else if ((gain >= 64) && (gain < 64 * 2))
 674                 val = (1 << 9) | (gain / 2);
 675         else
 676                 val = gain;
 677
 678         return reg_write(GLOBAL_GAIN, val);
 679 }
 680
 681 static int mt9m111_set_autoexposure(struct mt9m111 *mt9m111, int val)
 682 {
 683         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 684
 685         if (val == V4L2_EXPOSURE_AUTO)
 686                 return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
 687         return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOEXPO_EN);
 688 }
 689
 690 static int mt9m111_set_autowhitebalance(struct mt9m111 *mt9m111, int on)
 691 {
 692         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 693
 694         if (on)
 695                 return reg_set(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
 696         return reg_clear(OPER_MODE_CTRL, MT9M111_OPMODE_AUTOWHITEBAL_EN);
 697 }
 698
 699 static int mt9m111_s_ctrl(struct v4l2_ctrl *ctrl)
 700 {
 701         struct mt9m111 *mt9m111 = container_of(ctrl->handler,
 702                                                struct mt9m111, hdl);
 703
 704         switch (ctrl->id) {
 705         case V4L2_CID_VFLIP:
 706                 return mt9m111_set_flip(mt9m111, ctrl->val,
 707                                         MT9M111_RMB_MIRROR_ROWS);
 708         case V4L2_CID_HFLIP:
 709                 return mt9m111_set_flip(mt9m111, ctrl->val,
 710                                         MT9M111_RMB_MIRROR_COLS);
 711         case V4L2_CID_GAIN:
 712                 return mt9m111_set_global_gain(mt9m111, ctrl->val);
 713         case V4L2_CID_EXPOSURE_AUTO:
 714                 return mt9m111_set_autoexposure(mt9m111, ctrl->val);
 715         case V4L2_CID_AUTO_WHITE_BALANCE:
 716                 return mt9m111_set_autowhitebalance(mt9m111, ctrl->val);
 717         }
 718
 719         return -EINVAL;
 720 }
 721
 722 static int mt9m111_suspend(struct mt9m111 *mt9m111)
 723 {
 724         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 725         int ret;
 726
 727         v4l2_ctrl_s_ctrl(mt9m111->gain, mt9m111_get_global_gain(mt9m111));
 728
 729         ret = reg_set(RESET, MT9M111_RESET_RESET_MODE);
 730         if (!ret)
 731                 ret = reg_set(RESET, MT9M111_RESET_RESET_SOC |
 732                               MT9M111_RESET_OUTPUT_DISABLE |
 733                               MT9M111_RESET_ANALOG_STANDBY);
 734         if (!ret)
 735                 ret = reg_clear(RESET, MT9M111_RESET_CHIP_ENABLE);
 736
 737         return ret;
 738 }
 739
 740 static void mt9m111_restore_state(struct mt9m111 *mt9m111)
 741 {
 742         mt9m111_set_context(mt9m111, mt9m111->ctx);
 743         mt9m111_set_pixfmt(mt9m111, mt9m111->fmt->code);
 744         mt9m111_setup_geometry(mt9m111, &mt9m111->rect,
 745                         mt9m111->width, mt9m111->height, mt9m111->fmt->code);
 746         v4l2_ctrl_handler_setup(&mt9m111->hdl);
 747 }
 748
 749 static int mt9m111_resume(struct mt9m111 *mt9m111)
 750 {
 751         int ret = mt9m111_enable(mt9m111);
 752         if (!ret)
 753                 ret = mt9m111_reset(mt9m111);
 754         if (!ret)
 755                 mt9m111_restore_state(mt9m111);
 756
 757         return ret;
 758 }
 759
 760 static int mt9m111_init(struct mt9m111 *mt9m111)
 761 {
 762         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 763         int ret;
 764
 765         ret = mt9m111_enable(mt9m111);
 766         if (!ret)
 767                 ret = mt9m111_reset(mt9m111);
 768         if (!ret)
 769                 ret = mt9m111_set_context(mt9m111, mt9m111->ctx);
 770         if (ret)
 771                 dev_err(&client->dev, "mt9m111 init failed: %d\n", ret);
 772         return ret;
 773 }
 774
 775 static int mt9m111_power_on(struct mt9m111 *mt9m111)
 776 {
 777         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 778         struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
 779         int ret;
 780
 781         ret = soc_camera_power_on(&client->dev, ssdd, mt9m111->clk);
 782         if (ret < 0)
 783                 return ret;
 784
 785         ret = mt9m111_resume(mt9m111);
 786         if (ret < 0) {
 787                 dev_err(&client->dev, "Failed to resume the sensor: %d\n", ret);
 788                 soc_camera_power_off(&client->dev, ssdd, mt9m111->clk);
 789         }
 790
 791         return ret;
 792 }
 793
 794 static void mt9m111_power_off(struct mt9m111 *mt9m111)
 795 {
 796         struct i2c_client *client = v4l2_get_subdevdata(&mt9m111->subdev);
 797         struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
 798
 799         mt9m111_suspend(mt9m111);
 800         soc_camera_power_off(&client->dev, ssdd, mt9m111->clk);
 801 }
 802
 803 static int mt9m111_s_power(struct v4l2_subdev *sd, int on)
 804 {
 805         struct mt9m111 *mt9m111 = container_of(sd, struct mt9m111, subdev);
 806         int ret = 0;
 807
 808         mutex_lock(&mt9m111->power_lock);
 809
 810         /*
 811          * If the power count is modified from 0 to != 0 or from != 0 to 0,
 812          * update the power state.
 813          */
 814         if (mt9m111->power_count == !on) {
 815                 if (on)
 816                         ret = mt9m111_power_on(mt9m111);
 817                 else
 818                         mt9m111_power_off(mt9m111);
 819         }
 820
 821         if (!ret) {
 822                 /* Update the power count. */
 823                 mt9m111->power_count += on ? 1 : -1;
 824                 WARN_ON(mt9m111->power_count < 0);
 825         }
 826
 827         mutex_unlock(&mt9m111->power_lock);
 828         return ret;
 829 }
 830
 831 static const struct v4l2_ctrl_ops mt9m111_ctrl_ops = {
 832         .s_ctrl = mt9m111_s_ctrl,
 833 };
 834
 835 static struct v4l2_subdev_core_ops mt9m111_subdev_core_ops = {
 836         .s_power        = mt9m111_s_power,
 837 #ifdef CONFIG_VIDEO_ADV_DEBUG
 838         .g_register     = mt9m111_g_register,
 839         .s_register     = mt9m111_s_register,
 840 #endif
 841 };
 842
 843 static int mt9m111_enum_mbus_code(struct v4l2_subdev *sd,
 844                 struct v4l2_subdev_pad_config *cfg,
 845                 struct v4l2_subdev_mbus_code_enum *code)
 846 {
 847         if (code->pad || code->index >= ARRAY_SIZE(mt9m111_colour_fmts))
 848                 return -EINVAL;
 849
 850         code->code = mt9m111_colour_fmts[code->index].code;
 851         return 0;
 852 }
 853
 854 static int mt9m111_g_mbus_config(struct v4l2_subdev *sd,
 855                                 struct v4l2_mbus_config *cfg)
 856 {
 857         struct i2c_client *client = v4l2_get_subdevdata(sd);
 858         struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
 859
 860         cfg->flags = V4L2_MBUS_MASTER | V4L2_MBUS_PCLK_SAMPLE_RISING |
 861                 V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_HIGH |
 862                 V4L2_MBUS_DATA_ACTIVE_HIGH;
 863         cfg->type = V4L2_MBUS_PARALLEL;
 864         cfg->flags = soc_camera_apply_board_flags(ssdd, cfg);
 865
 866         return 0;
 867 }
 868
 869 static struct v4l2_subdev_video_ops mt9m111_subdev_video_ops = {
 870         .s_crop         = mt9m111_s_crop,
 871         .g_crop         = mt9m111_g_crop,
 872         .cropcap        = mt9m111_cropcap,
 873         .g_mbus_config  = mt9m111_g_mbus_config,
 874 };
 875
 876 static const struct v4l2_subdev_pad_ops mt9m111_subdev_pad_ops = {
 877         .enum_mbus_code = mt9m111_enum_mbus_code,
 878         .get_fmt        = mt9m111_get_fmt,
 879         .set_fmt        = mt9m111_set_fmt,
 880 };
 881
 882 static struct v4l2_subdev_ops mt9m111_subdev_ops = {
 883         .core   = &mt9m111_subdev_core_ops,
 884         .video  = &mt9m111_subdev_video_ops,
 885         .pad    = &mt9m111_subdev_pad_ops,
 886 };
 887
 888 /*
 889  * Interface active, can use i2c. If it fails, it can indeed mean, that
 890  * this wasn't our capture interface, so, we wait for the right one
 891  */
 892 static int mt9m111_video_probe(struct i2c_client *client)
 893 {
 894         struct mt9m111 *mt9m111 = to_mt9m111(client);
 895         s32 data;
 896         int ret;
 897
 898         ret = mt9m111_s_power(&mt9m111->subdev, 1);
 899         if (ret < 0)
 900                 return ret;
 901
 902         data = reg_read(CHIP_VERSION);
 903
 904         switch (data) {
 905         case 0x143a: /* MT9M111 or MT9M131 */
 906                 dev_info(&client->dev,
 907                         "Detected a MT9M111/MT9M131 chip ID %x\n", data);
 908                 break;
 909         case 0x148c: /* MT9M112 */
 910                 dev_info(&client->dev, "Detected a MT9M112 chip ID %x\n", data);
 911                 break;
 912         default:
 913                 dev_err(&client->dev,
 914                         "No MT9M111/MT9M112/MT9M131 chip detected register read %x\n",
 915                         data);
 916                 ret = -ENODEV;
 917                 goto done;
 918         }
 919
 920         ret = mt9m111_init(mt9m111);
 921         if (ret)
 922                 goto done;
 923
 924         ret = v4l2_ctrl_handler_setup(&mt9m111->hdl);
 925
 926 done:
 927         mt9m111_s_power(&mt9m111->subdev, 0);
 928         return ret;
 929 }
 930
 931 static int mt9m111_probe(struct i2c_client *client,
 932                          const struct i2c_device_id *did)
 933 {
 934         struct mt9m111 *mt9m111;
 935         struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
 936         struct soc_camera_subdev_desc *ssdd = soc_camera_i2c_to_desc(client);
 937         int ret;
 938
 939         if (client->dev.of_node) {
 940                 ssdd = devm_kzalloc(&client->dev, sizeof(*ssdd), GFP_KERNEL);
 941                 if (!ssdd)
 942                         return -ENOMEM;
 943                 client->dev.platform_data = ssdd;
 944         }
 945         if (!ssdd) {
 946                 dev_err(&client->dev, "mt9m111: driver needs platform data\n");
 947                 return -EINVAL;
 948         }
 949
 950         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) {
 951                 dev_warn(&adapter->dev,
 952                          "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
 953                 return -EIO;
 954         }
 955
 956         mt9m111 = devm_kzalloc(&client->dev, sizeof(struct mt9m111), GFP_KERNEL);
 957         if (!mt9m111)
 958                 return -ENOMEM;
 959
 960         mt9m111->clk = v4l2_clk_get(&client->dev, "mclk");
 961         if (IS_ERR(mt9m111->clk))
 962                 return -EPROBE_DEFER;
 963
 964         /* Default HIGHPOWER context */
 965         mt9m111->ctx = &context_b;
 966
 967         v4l2_i2c_subdev_init(&mt9m111->subdev, client, &mt9m111_subdev_ops);
 968         v4l2_ctrl_handler_init(&mt9m111->hdl, 5);
 969         v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 970                         V4L2_CID_VFLIP, 0, 1, 1, 0);
 971         v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 972                         V4L2_CID_HFLIP, 0, 1, 1, 0);
 973         v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 974                         V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1);
 975         mt9m111->gain = v4l2_ctrl_new_std(&mt9m111->hdl, &mt9m111_ctrl_ops,
 976                         V4L2_CID_GAIN, 0, 63 * 2 * 2, 1, 32);
 977         v4l2_ctrl_new_std_menu(&mt9m111->hdl,
 978                         &mt9m111_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, 1, 0,
 979                         V4L2_EXPOSURE_AUTO);
 980         mt9m111->subdev.ctrl_handler = &mt9m111->hdl;
 981         if (mt9m111->hdl.error) {
 982                 ret = mt9m111->hdl.error;
 983                 goto out_clkput;
 984         }
 985
 986         /* Second stage probe - when a capture adapter is there */
 987         mt9m111->rect.left      = MT9M111_MIN_DARK_COLS;
 988         mt9m111->rect.top       = MT9M111_MIN_DARK_ROWS;
 989         mt9m111->rect.width     = MT9M111_MAX_WIDTH;
 990         mt9m111->rect.height    = MT9M111_MAX_HEIGHT;
 991         mt9m111->fmt            = &mt9m111_colour_fmts[0];
 992         mt9m111->lastpage       = -1;
 993         mutex_init(&mt9m111->power_lock);
 994
 995         ret = soc_camera_power_init(&client->dev, ssdd);
 996         if (ret < 0)
 997                 goto out_hdlfree;
 998
 999         ret = mt9m111_video_probe(client);
1000         if (ret < 0)
1001                 goto out_hdlfree;
1002
1003         mt9m111->subdev.dev = &client->dev;
1004         ret = v4l2_async_register_subdev(&mt9m111->subdev);
1005         if (ret < 0)
1006                 goto out_hdlfree;
1007
1008         return 0;
1009
1010 out_hdlfree:
1011         v4l2_ctrl_handler_free(&mt9m111->hdl);
1012 out_clkput:
1013         v4l2_clk_put(mt9m111->clk);
1014
1015         return ret;
1016 }
1017
1018 static int mt9m111_remove(struct i2c_client *client)
1019 {
1020         struct mt9m111 *mt9m111 = to_mt9m111(client);
1021
1022         v4l2_async_unregister_subdev(&mt9m111->subdev);
1023         v4l2_clk_put(mt9m111->clk);
1024         v4l2_ctrl_handler_free(&mt9m111->hdl);
1025
1026         return 0;
1027 }
1028 static const struct of_device_id mt9m111_of_match[] = {
1029         { .compatible = "micron,mt9m111", },
1030         {},
1031 };
1032 MODULE_DEVICE_TABLE(of, mt9m111_of_match);
1033
1034 static const struct i2c_device_id mt9m111_id[] = {
1035         { "mt9m111", 0 },
1036         { }
1037 };
1038 MODULE_DEVICE_TABLE(i2c, mt9m111_id);
1039
1040 static struct i2c_driver mt9m111_i2c_driver = {
1041         .driver = {
1042                 .name = "mt9m111",
1043                 .of_match_table = of_match_ptr(mt9m111_of_match),
1044         },
1045         .probe          = mt9m111_probe,
1046         .remove         = mt9m111_remove,
1047         .id_table       = mt9m111_id,
1048 };
1049
1050 module_i2c_driver(mt9m111_i2c_driver);
1051
1052 MODULE_DESCRIPTION("Micron/Aptina MT9M111/MT9M112/MT9M131 Camera driver");
1053 MODULE_AUTHOR("Robert Jarzmik");
1054 MODULE_LICENSE("GPL");