drivers/video/omap2/omapfb/omapfb-main.c

   1 /*
   2  * linux/drivers/video/omap2/omapfb-main.c
   3  *
   4  * Copyright (C) 2008 Nokia Corporation
   5  * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
   6  *
   7  * Some code and ideas taken from drivers/video/omap/ driver
   8  * by Imre Deak.
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License version 2 as published by
  12  * the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful, but WITHOUT
  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  17  * more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along with
  20  * this program.  If not, see <http://www.gnu.org/licenses/>.
  21  */
  22
  23 #include <linux/module.h>
  24 #include <linux/delay.h>
  25 #include <linux/fb.h>
  26 #include <linux/dma-mapping.h>
  27 #include <linux/vmalloc.h>
  28 #include <linux/device.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/omapfb.h>
  31
  32 #include <mach/display.h>
  33 #include <mach/vram.h>
  34 #include <mach/vrfb.h>
  35
  36 #include "omapfb.h"
  37
  38 #define MODULE_NAME     "omapfb"
  39
  40 static char *def_mode;
  41 static char *def_vram;
  42 static int def_vrfb;
  43 static int def_rotate;
  44 static int def_mirror;
  45
  46 #ifdef DEBUG
  47 unsigned int omapfb_debug;
  48 module_param_named(debug, omapfb_debug, bool, 0644);
  49 static unsigned int omapfb_test_pattern;
  50 module_param_named(test, omapfb_test_pattern, bool, 0644);
  51 #endif
  52
  53 #ifdef DEBUG
  54 static void draw_pixel(struct fb_info *fbi, int x, int y, unsigned color)
  55 {
  56         struct fb_var_screeninfo *var = &fbi->var;
  57         struct fb_fix_screeninfo *fix = &fbi->fix;
  58         void __iomem *addr = fbi->screen_base;
  59         const unsigned bytespp = var->bits_per_pixel >> 3;
  60         const unsigned line_len = fix->line_length / bytespp;
  61
  62         int r = (color >> 16) & 0xff;
  63         int g = (color >> 8) & 0xff;
  64         int b = (color >> 0) & 0xff;
  65
  66         if (var->bits_per_pixel == 16) {
  67                 u16 __iomem *p = (u16 __iomem *)addr;
  68                 p += y * line_len + x;
  69
  70                 r = r * 32 / 256;
  71                 g = g * 64 / 256;
  72                 b = b * 32 / 256;
  73
  74                 __raw_writew((r << 11) | (g << 5) | (b << 0), p);
  75         } else if (var->bits_per_pixel == 24) {
  76                 u8 __iomem *p = (u8 __iomem *)addr;
  77                 p += (y * line_len + x) * 3;
  78
  79                 __raw_writeb(b, p + 0);
  80                 __raw_writeb(g, p + 1);
  81                 __raw_writeb(r, p + 2);
  82         } else if (var->bits_per_pixel == 32) {
  83                 u32 __iomem *p = (u32 __iomem *)addr;
  84                 p += y * line_len + x;
  85                 __raw_writel(color, p);
  86         }
  87 }
  88
  89 static void fill_fb(struct fb_info *fbi)
  90 {
  91         struct fb_var_screeninfo *var = &fbi->var;
  92         const short w = var->xres_virtual;
  93         const short h = var->yres_virtual;
  94         void __iomem *addr = fbi->screen_base;
  95         int y, x;
  96
  97         if (!addr)
  98                 return;
  99
 100         DBG("fill_fb %dx%d, line_len %d bytes\n", w, h, fbi->fix.line_length);
 101
 102         for (y = 0; y < h; y++) {
 103                 for (x = 0; x < w; x++) {
 104                         if (x < 20 && y < 20)
 105                                 draw_pixel(fbi, x, y, 0xffffff);
 106                         else if (x < 20 && (y > 20 && y < h - 20))
 107                                 draw_pixel(fbi, x, y, 0xff);
 108                         else if (y < 20 && (x > 20 && x < w - 20))
 109                                 draw_pixel(fbi, x, y, 0xff00);
 110                         else if (x > w - 20 && (y > 20 && y < h - 20))
 111                                 draw_pixel(fbi, x, y, 0xff0000);
 112                         else if (y > h - 20 && (x > 20 && x < w - 20))
 113                                 draw_pixel(fbi, x, y, 0xffff00);
 114                         else if (x == 20 || x == w - 20 ||
 115                                         y == 20 || y == h - 20)
 116                                 draw_pixel(fbi, x, y, 0xffffff);
 117                         else if (x == y || w - x == h - y)
 118                                 draw_pixel(fbi, x, y, 0xff00ff);
 119                         else if (w - x == y || x == h - y)
 120                                 draw_pixel(fbi, x, y, 0x00ffff);
 121                         else if (x > 20 && y > 20 && x < w - 20 && y < h - 20) {
 122                                 int t = x * 3 / w;
 123                                 unsigned r = 0, g = 0, b = 0;
 124                                 unsigned c;
 125                                 if (var->bits_per_pixel == 16) {
 126                                         if (t == 0)
 127                                                 b = (y % 32) * 256 / 32;
 128                                         else if (t == 1)
 129                                                 g = (y % 64) * 256 / 64;
 130                                         else if (t == 2)
 131                                                 r = (y % 32) * 256 / 32;
 132                                 } else {
 133                                         if (t == 0)
 134                                                 b = (y % 256);
 135                                         else if (t == 1)
 136                                                 g = (y % 256);
 137                                         else if (t == 2)
 138                                                 r = (y % 256);
 139                                 }
 140                                 c = (r << 16) | (g << 8) | (b << 0);
 141                                 draw_pixel(fbi, x, y, c);
 142                         } else {
 143                                 draw_pixel(fbi, x, y, 0);
 144                         }
 145                 }
 146         }
 147 }
 148 #endif
 149
 150 static unsigned omapfb_get_vrfb_offset(struct omapfb_info *ofbi, int rot)
 151 {
 152         struct vrfb *vrfb = &ofbi->region.vrfb;
 153         unsigned offset;
 154
 155         switch (rot) {
 156         case FB_ROTATE_UR:
 157                 offset = 0;
 158                 break;
 159         case FB_ROTATE_CW:
 160                 offset = vrfb->yoffset;
 161                 break;
 162         case FB_ROTATE_UD:
 163                 offset = vrfb->yoffset * OMAP_VRFB_LINE_LEN + vrfb->xoffset;
 164                 break;
 165         case FB_ROTATE_CCW:
 166                 offset = vrfb->xoffset * OMAP_VRFB_LINE_LEN;
 167                 break;
 168         default:
 169                 BUG();
 170         }
 171
 172         offset *= vrfb->bytespp;
 173
 174         return offset;
 175 }
 176
 177 static u32 omapfb_get_region_rot_paddr(struct omapfb_info *ofbi)
 178 {
 179         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
 180                 return ofbi->region.vrfb.paddr[ofbi->rotation]
 181                         + omapfb_get_vrfb_offset(ofbi, ofbi->rotation);
 182         } else {
 183                 return ofbi->region.paddr;
 184         }
 185 }
 186
 187 u32 omapfb_get_region_paddr(struct omapfb_info *ofbi)
 188 {
 189         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
 190                 return ofbi->region.vrfb.paddr[0];
 191         else
 192                 return ofbi->region.paddr;
 193 }
 194
 195 void __iomem *omapfb_get_region_vaddr(struct omapfb_info *ofbi)
 196 {
 197         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
 198                 return ofbi->region.vrfb.vaddr[0];
 199         else
 200                 return ofbi->region.vaddr;
 201 }
 202
 203 static struct omapfb_colormode omapfb_colormodes[] = {
 204         {
 205                 .dssmode = OMAP_DSS_COLOR_UYVY,
 206                 .bits_per_pixel = 16,
 207                 .nonstd = OMAPFB_COLOR_YUV422,
 208         }, {
 209                 .dssmode = OMAP_DSS_COLOR_YUV2,
 210                 .bits_per_pixel = 16,
 211                 .nonstd = OMAPFB_COLOR_YUY422,
 212         }, {
 213                 .dssmode = OMAP_DSS_COLOR_ARGB16,
 214                 .bits_per_pixel = 16,
 215                 .red    = { .length = 4, .offset = 8, .msb_right = 0 },
 216                 .green  = { .length = 4, .offset = 4, .msb_right = 0 },
 217                 .blue   = { .length = 4, .offset = 0, .msb_right = 0 },
 218                 .transp = { .length = 4, .offset = 12, .msb_right = 0 },
 219         }, {
 220                 .dssmode = OMAP_DSS_COLOR_RGB16,
 221                 .bits_per_pixel = 16,
 222                 .red    = { .length = 5, .offset = 11, .msb_right = 0 },
 223                 .green  = { .length = 6, .offset = 5, .msb_right = 0 },
 224                 .blue   = { .length = 5, .offset = 0, .msb_right = 0 },
 225                 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
 226         }, {
 227                 .dssmode = OMAP_DSS_COLOR_RGB24P,
 228                 .bits_per_pixel = 24,
 229                 .red    = { .length = 8, .offset = 16, .msb_right = 0 },
 230                 .green  = { .length = 8, .offset = 8, .msb_right = 0 },
 231                 .blue   = { .length = 8, .offset = 0, .msb_right = 0 },
 232                 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
 233         }, {
 234                 .dssmode = OMAP_DSS_COLOR_RGB24U,
 235                 .bits_per_pixel = 32,
 236                 .red    = { .length = 8, .offset = 16, .msb_right = 0 },
 237                 .green  = { .length = 8, .offset = 8, .msb_right = 0 },
 238                 .blue   = { .length = 8, .offset = 0, .msb_right = 0 },
 239                 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
 240         }, {
 241                 .dssmode = OMAP_DSS_COLOR_ARGB32,
 242                 .bits_per_pixel = 32,
 243                 .red    = { .length = 8, .offset = 16, .msb_right = 0 },
 244                 .green  = { .length = 8, .offset = 8, .msb_right = 0 },
 245                 .blue   = { .length = 8, .offset = 0, .msb_right = 0 },
 246                 .transp = { .length = 8, .offset = 24, .msb_right = 0 },
 247         }, {
 248                 .dssmode = OMAP_DSS_COLOR_RGBA32,
 249                 .bits_per_pixel = 32,
 250                 .red    = { .length = 8, .offset = 24, .msb_right = 0 },
 251                 .green  = { .length = 8, .offset = 16, .msb_right = 0 },
 252                 .blue   = { .length = 8, .offset = 8, .msb_right = 0 },
 253                 .transp = { .length = 8, .offset = 0, .msb_right = 0 },
 254         }, {
 255                 .dssmode = OMAP_DSS_COLOR_RGBX32,
 256                 .bits_per_pixel = 32,
 257                 .red    = { .length = 8, .offset = 24, .msb_right = 0 },
 258                 .green  = { .length = 8, .offset = 16, .msb_right = 0 },
 259                 .blue   = { .length = 8, .offset = 8, .msb_right = 0 },
 260                 .transp = { .length = 0, .offset = 0, .msb_right = 0 },
 261         },
 262 };
 263
 264 static bool cmp_var_to_colormode(struct fb_var_screeninfo *var,
 265                 struct omapfb_colormode *color)
 266 {
 267         bool cmp_component(struct fb_bitfield *f1, struct fb_bitfield *f2)
 268         {
 269                 return f1->length == f2->length &&
 270                         f1->offset == f2->offset &&
 271                         f1->msb_right == f2->msb_right;
 272         }
 273
 274         if (var->bits_per_pixel == 0 ||
 275                         var->red.length == 0 ||
 276                         var->blue.length == 0 ||
 277                         var->green.length == 0)
 278                 return 0;
 279
 280         return var->bits_per_pixel == color->bits_per_pixel &&
 281                 cmp_component(&var->red, &color->red) &&
 282                 cmp_component(&var->green, &color->green) &&
 283                 cmp_component(&var->blue, &color->blue) &&
 284                 cmp_component(&var->transp, &color->transp);
 285 }
 286
 287 static void assign_colormode_to_var(struct fb_var_screeninfo *var,
 288                 struct omapfb_colormode *color)
 289 {
 290         var->bits_per_pixel = color->bits_per_pixel;
 291         var->nonstd = color->nonstd;
 292         var->red = color->red;
 293         var->green = color->green;
 294         var->blue = color->blue;
 295         var->transp = color->transp;
 296 }
 297
 298 static enum omap_color_mode fb_mode_to_dss_mode(struct fb_var_screeninfo *var)
 299 {
 300         enum omap_color_mode dssmode;
 301         int i;
 302
 303         /* first match with nonstd field */
 304         if (var->nonstd) {
 305                 for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
 306                         struct omapfb_colormode *mode = &omapfb_colormodes[i];
 307                         if (var->nonstd == mode->nonstd) {
 308                                 assign_colormode_to_var(var, mode);
 309                                 return mode->dssmode;
 310                         }
 311                 }
 312
 313                 return -EINVAL;
 314         }
 315
 316         /* then try exact match of bpp and colors */
 317         for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
 318                 struct omapfb_colormode *mode = &omapfb_colormodes[i];
 319                 if (cmp_var_to_colormode(var, mode)) {
 320                         assign_colormode_to_var(var, mode);
 321                         return mode->dssmode;
 322                 }
 323         }
 324
 325         /* match with bpp if user has not filled color fields
 326          * properly */
 327         switch (var->bits_per_pixel) {
 328         case 1:
 329                 dssmode = OMAP_DSS_COLOR_CLUT1;
 330                 break;
 331         case 2:
 332                 dssmode = OMAP_DSS_COLOR_CLUT2;
 333                 break;
 334         case 4:
 335                 dssmode = OMAP_DSS_COLOR_CLUT4;
 336                 break;
 337         case 8:
 338                 dssmode = OMAP_DSS_COLOR_CLUT8;
 339                 break;
 340         case 12:
 341                 dssmode = OMAP_DSS_COLOR_RGB12U;
 342                 break;
 343         case 16:
 344                 dssmode = OMAP_DSS_COLOR_RGB16;
 345                 break;
 346         case 24:
 347                 dssmode = OMAP_DSS_COLOR_RGB24P;
 348                 break;
 349         case 32:
 350                 dssmode = OMAP_DSS_COLOR_RGB24U;
 351                 break;
 352         default:
 353                 return -EINVAL;
 354         }
 355
 356         for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
 357                 struct omapfb_colormode *mode = &omapfb_colormodes[i];
 358                 if (dssmode == mode->dssmode) {
 359                         assign_colormode_to_var(var, mode);
 360                         return mode->dssmode;
 361                 }
 362         }
 363
 364         return -EINVAL;
 365 }
 366
 367 static int dss_mode_to_fb_mode(enum omap_color_mode dssmode,
 368                                struct fb_var_screeninfo *var)
 369 {
 370         int i;
 371
 372         for (i = 0; i < ARRAY_SIZE(omapfb_colormodes); ++i) {
 373                 struct omapfb_colormode *mode = &omapfb_colormodes[i];
 374                 if (dssmode == mode->dssmode) {
 375                         assign_colormode_to_var(var, mode);
 376                         return 0;
 377                 }
 378         }
 379         return -ENOENT;
 380 }
 381
 382 void set_fb_fix(struct fb_info *fbi)
 383 {
 384         struct fb_fix_screeninfo *fix = &fbi->fix;
 385         struct fb_var_screeninfo *var = &fbi->var;
 386         struct omapfb_info *ofbi = FB2OFB(fbi);
 387         struct omapfb2_mem_region *rg = &ofbi->region;
 388
 389         DBG("set_fb_fix\n");
 390
 391         /* used by open/write in fbmem.c */
 392         fbi->screen_base = (char __iomem *)omapfb_get_region_vaddr(ofbi);
 393
 394         /* used by mmap in fbmem.c */
 395         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
 396                 switch (var->nonstd) {
 397                 case OMAPFB_COLOR_YUV422:
 398                 case OMAPFB_COLOR_YUY422:
 399                         fix->line_length =
 400                                 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 2;
 401                         break;
 402                 default:
 403                         fix->line_length =
 404                                 (OMAP_VRFB_LINE_LEN * var->bits_per_pixel) >> 3;
 405                         break;
 406                 }
 407         } else
 408                 fix->line_length =
 409                         (var->xres_virtual * var->bits_per_pixel) >> 3;
 410         fix->smem_start = omapfb_get_region_paddr(ofbi);
 411         fix->smem_len = rg->size;
 412
 413         fix->type = FB_TYPE_PACKED_PIXELS;
 414
 415         if (var->nonstd)
 416                 fix->visual = FB_VISUAL_PSEUDOCOLOR;
 417         else {
 418                 switch (var->bits_per_pixel) {
 419                 case 32:
 420                 case 24:
 421                 case 16:
 422                 case 12:
 423                         fix->visual = FB_VISUAL_TRUECOLOR;
 424                         /* 12bpp is stored in 16 bits */
 425                         break;
 426                 case 1:
 427                 case 2:
 428                 case 4:
 429                 case 8:
 430                         fix->visual = FB_VISUAL_PSEUDOCOLOR;
 431                         break;
 432                 }
 433         }
 434
 435         fix->accel = FB_ACCEL_NONE;
 436
 437         fix->xpanstep = 1;
 438         fix->ypanstep = 1;
 439
 440         if (rg->size && ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
 441                 enum omap_color_mode mode = 0;
 442                 mode = fb_mode_to_dss_mode(var);
 443
 444                 omap_vrfb_setup(&rg->vrfb, rg->paddr,
 445                                 var->xres_virtual,
 446                                 var->yres_virtual,
 447                                 mode);
 448         }
 449 }
 450
 451 /* check new var and possibly modify it to be ok */
 452 int check_fb_var(struct fb_info *fbi, struct fb_var_screeninfo *var)
 453 {
 454         struct omapfb_info *ofbi = FB2OFB(fbi);
 455         struct omap_display *display = fb2display(fbi);
 456         unsigned long max_frame_size;
 457         unsigned long line_size;
 458         int xres_min, yres_min;
 459         int xres_max, yres_max;
 460         enum omap_color_mode mode = 0;
 461         int i;
 462         int bytespp;
 463
 464         DBG("check_fb_var %d\n", ofbi->id);
 465
 466         if (ofbi->region.size == 0)
 467                 return 0;
 468
 469         mode = fb_mode_to_dss_mode(var);
 470         if (mode < 0) {
 471                 DBG("cannot convert var to omap dss mode\n");
 472                 return -EINVAL;
 473         }
 474
 475         for (i = 0; i < ofbi->num_overlays; ++i) {
 476                 if ((ofbi->overlays[i]->supported_modes & mode) == 0) {
 477                         DBG("invalid mode\n");
 478                         return -EINVAL;
 479                 }
 480         }
 481
 482         if (var->rotate < 0 || var->rotate > 3)
 483                 return -EINVAL;
 484
 485         if (var->rotate != fbi->var.rotate) {
 486                 DBG("rotation changing\n");
 487
 488                 ofbi->rotation = var->rotate;
 489
 490                 if (abs(var->rotate - fbi->var.rotate) != 2) {
 491                         int tmp;
 492                         DBG("rotate changing 90/270 degrees. "
 493                                         "swapping x/y res\n");
 494
 495                         tmp = var->yres;
 496                         var->yres = var->xres;
 497                         var->xres = tmp;
 498
 499                         tmp = var->yres_virtual;
 500                         var->yres_virtual = var->xres_virtual;
 501                         var->xres_virtual = tmp;
 502                 }
 503         }
 504
 505         xres_min = OMAPFB_PLANE_XRES_MIN;
 506         xres_max = 2048;
 507         yres_min = OMAPFB_PLANE_YRES_MIN;
 508         yres_max = 2048;
 509
 510         bytespp = var->bits_per_pixel >> 3;
 511
 512         /* XXX: some applications seem to set virtual res to 0. */
 513         if (var->xres_virtual == 0)
 514                 var->xres_virtual = var->xres;
 515
 516         if (var->yres_virtual == 0)
 517                 var->yres_virtual = var->yres;
 518
 519         if (var->xres_virtual < xres_min || var->yres_virtual < yres_min)
 520                 return -EINVAL;
 521
 522         if (var->xres < xres_min)
 523                 var->xres = xres_min;
 524         if (var->yres < yres_min)
 525                 var->yres = yres_min;
 526         if (var->xres > xres_max)
 527                 var->xres = xres_max;
 528         if (var->yres > yres_max)
 529                 var->yres = yres_max;
 530
 531         if (var->xres > var->xres_virtual)
 532                 var->xres = var->xres_virtual;
 533         if (var->yres > var->yres_virtual)
 534                 var->yres = var->yres_virtual;
 535
 536         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
 537                 line_size = OMAP_VRFB_LINE_LEN * bytespp;
 538         else
 539                 line_size = var->xres_virtual * bytespp;
 540
 541         max_frame_size = ofbi->region.size;
 542
 543         DBG("max frame size %lu, line size %lu\n", max_frame_size, line_size);
 544
 545         if (line_size * var->yres_virtual > max_frame_size) {
 546                 DBG("can't fit FB into memory, reducing y\n");
 547                 var->yres_virtual = max_frame_size / line_size;
 548
 549                 if (var->yres_virtual < yres_min)
 550                         var->yres_virtual = yres_min;
 551
 552                 if (var->yres > var->yres_virtual)
 553                         var->yres = var->yres_virtual;
 554         }
 555
 556         if (line_size * var->yres_virtual > max_frame_size) {
 557                 DBG("can't fit FB into memory, reducing x\n");
 558                 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
 559                         return -EINVAL;
 560
 561                 var->xres_virtual = max_frame_size / var->yres_virtual /
 562                         bytespp;
 563
 564                 if (var->xres_virtual < xres_min)
 565                         var->xres_virtual = xres_min;
 566
 567                 if (var->xres > var->xres_virtual)
 568                         var->xres = var->xres_virtual;
 569
 570                 line_size = var->xres_virtual * bytespp;
 571         }
 572
 573         if (line_size * var->yres_virtual > max_frame_size) {
 574                 DBG("cannot fit FB to memory\n");
 575                 return -EINVAL;
 576         }
 577
 578         if (var->xres + var->xoffset > var->xres_virtual)
 579                 var->xoffset = var->xres_virtual - var->xres;
 580         if (var->yres + var->yoffset > var->yres_virtual)
 581                 var->yoffset = var->yres_virtual - var->yres;
 582
 583         DBG("xres = %d, yres = %d, vxres = %d, vyres = %d\n",
 584                         var->xres, var->yres,
 585                         var->xres_virtual, var->yres_virtual);
 586
 587         var->height             = -1;
 588         var->width              = -1;
 589         var->grayscale          = 0;
 590
 591         if (display && display->get_timings) {
 592                 struct omap_video_timings timings;
 593                 display->get_timings(display, &timings);
 594
 595                 /* pixclock in ps, the rest in pixclock */
 596                 var->pixclock = timings.pixel_clock != 0 ?
 597                         KHZ2PICOS(timings.pixel_clock) :
 598                         0;
 599                 var->left_margin = timings.hfp;
 600                 var->right_margin = timings.hbp;
 601                 var->upper_margin = timings.vfp;
 602                 var->lower_margin = timings.vbp;
 603                 var->hsync_len = timings.hsw;
 604                 var->vsync_len = timings.vsw;
 605         } else {
 606                 var->pixclock = 0;
 607                 var->left_margin = 0;
 608                 var->right_margin = 0;
 609                 var->upper_margin = 0;
 610                 var->lower_margin = 0;
 611                 var->hsync_len = 0;
 612                 var->vsync_len = 0;
 613         }
 614
 615         /* TODO: get these from panel->config */
 616         var->vmode              = FB_VMODE_NONINTERLACED;
 617         var->sync               = 0;
 618
 619         return 0;
 620 }
 621
 622 /*
 623  * ---------------------------------------------------------------------------
 624  * fbdev framework callbacks
 625  * ---------------------------------------------------------------------------
 626  */
 627 static int omapfb_open(struct fb_info *fbi, int user)
 628 {
 629         return 0;
 630 }
 631
 632 static int omapfb_release(struct fb_info *fbi, int user)
 633 {
 634         struct omapfb_info *ofbi = FB2OFB(fbi);
 635         struct omapfb2_device *fbdev = ofbi->fbdev;
 636         struct omap_display *display = fb2display(fbi);
 637
 638         DBG("Closing fb with plane index %d\n", ofbi->id);
 639
 640         omapfb_lock(fbdev);
 641 #if 1
 642         if (display && display->get_update_mode && display->update) {
 643                 /* XXX this update should be removed, I think. But it's
 644                  * good for debugging */
 645                 if (display->get_update_mode(display) ==
 646                                 OMAP_DSS_UPDATE_MANUAL) {
 647                         u16 w, h;
 648
 649                         if (display->sync)
 650                                 display->sync(display);
 651
 652                         display->get_resolution(display, &w, &h);
 653                         display->update(display, 0, 0, w, h);
 654                 }
 655         }
 656 #endif
 657
 658         if (display && display->sync)
 659                 display->sync(display);
 660
 661         omapfb_unlock(fbdev);
 662
 663         return 0;
 664 }
 665
 666 /* setup overlay according to the fb */
 667 static int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl,
 668                 u16 posx, u16 posy, u16 outw, u16 outh)
 669 {
 670         int r = 0;
 671         struct omapfb_info *ofbi = FB2OFB(fbi);
 672         struct fb_var_screeninfo *var = &fbi->var;
 673         struct fb_fix_screeninfo *fix = &fbi->fix;
 674         enum omap_color_mode mode = 0;
 675         int offset;
 676         u32 data_start_p;
 677         void __iomem *data_start_v;
 678         struct omap_overlay_info info;
 679         int xres, yres;
 680         int screen_width;
 681         int mirror;
 682
 683         DBG("setup_overlay %d, posx %d, posy %d, outw %d, outh %d\n", ofbi->id,
 684                         posx, posy, outw, outh);
 685
 686         if (ofbi->rotation == FB_ROTATE_CW || ofbi->rotation == FB_ROTATE_CCW) {
 687                 xres = var->yres;
 688                 yres = var->xres;
 689         } else {
 690                 xres = var->xres;
 691                 yres = var->yres;
 692         }
 693
 694         offset = ((var->yoffset * var->xres_virtual +
 695                                 var->xoffset) * var->bits_per_pixel) >> 3;
 696
 697         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
 698                 data_start_p = omapfb_get_region_rot_paddr(ofbi);
 699                 data_start_v = NULL;
 700         } else {
 701                 data_start_p = omapfb_get_region_paddr(ofbi);
 702                 data_start_v = omapfb_get_region_vaddr(ofbi);
 703         }
 704
 705         data_start_p += offset;
 706         data_start_v += offset;
 707
 708         mode = fb_mode_to_dss_mode(var);
 709
 710         if (mode == -EINVAL) {
 711                 DBG("fb_mode_to_dss_mode failed");
 712                 r = -EINVAL;
 713                 goto err;
 714         }
 715
 716         switch (var->nonstd) {
 717         case OMAPFB_COLOR_YUV422:
 718         case OMAPFB_COLOR_YUY422:
 719                 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
 720                         screen_width = fix->line_length
 721                                 / (var->bits_per_pixel >> 2);
 722                         break;
 723                 }
 724         default:
 725                 screen_width = fix->line_length / (var->bits_per_pixel >> 3);
 726                 break;
 727         }
 728
 729         ovl->get_overlay_info(ovl, &info);
 730
 731         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB)
 732                 mirror = 0;
 733         else
 734                 mirror = ofbi->mirror;
 735
 736         info.paddr = data_start_p;
 737         info.vaddr = data_start_v;
 738         info.screen_width = screen_width;
 739         info.width = xres;
 740         info.height = yres;
 741         info.color_mode = mode;
 742         info.rotation_type = ofbi->rotation_type;
 743         info.rotation = ofbi->rotation;
 744         info.mirror = mirror;
 745
 746         info.pos_x = posx;
 747         info.pos_y = posy;
 748         info.out_width = outw;
 749         info.out_height = outh;
 750
 751         r = ovl->set_overlay_info(ovl, &info);
 752         if (r) {
 753                 DBG("ovl->setup_overlay_info failed\n");
 754                 goto err;
 755         }
 756
 757         return 0;
 758
 759 err:
 760         DBG("setup_overlay failed\n");
 761         return r;
 762 }
 763
 764 /* apply var to the overlay */
 765 int omapfb_apply_changes(struct fb_info *fbi, int init)
 766 {
 767         int r = 0;
 768         struct omapfb_info *ofbi = FB2OFB(fbi);
 769         struct fb_var_screeninfo *var = &fbi->var;
 770         struct omap_overlay *ovl;
 771         u16 posx, posy;
 772         u16 outw, outh;
 773         int i;
 774
 775 #ifdef DEBUG
 776         if (omapfb_test_pattern)
 777                 fill_fb(fbi);
 778 #endif
 779
 780         for (i = 0; i < ofbi->num_overlays; i++) {
 781                 ovl = ofbi->overlays[i];
 782
 783                 DBG("apply_changes, fb %d, ovl %d\n", ofbi->id, ovl->id);
 784
 785                 if (ofbi->region.size == 0) {
 786                         /* the fb is not available. disable the overlay */
 787                         omapfb_overlay_enable(ovl, 0);
 788                         if (!init && ovl->manager)
 789                                 ovl->manager->apply(ovl->manager);
 790                         continue;
 791                 }
 792
 793                 if (init || (ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
 794                         if (ofbi->rotation == FB_ROTATE_CW ||
 795                                         ofbi->rotation == FB_ROTATE_CCW) {
 796                                 outw = var->yres;
 797                                 outh = var->xres;
 798                         } else {
 799                                 outw = var->xres;
 800                                 outh = var->yres;
 801                         }
 802                 } else {
 803                         outw = ovl->info.out_width;
 804                         outh = ovl->info.out_height;
 805                 }
 806
 807                 if (init) {
 808                         posx = 0;
 809                         posy = 0;
 810                 } else {
 811                         posx = ovl->info.pos_x;
 812                         posy = ovl->info.pos_y;
 813                 }
 814
 815                 r = omapfb_setup_overlay(fbi, ovl, posx, posy, outw, outh);
 816                 if (r)
 817                         goto err;
 818
 819                 if (!init && ovl->manager)
 820                         ovl->manager->apply(ovl->manager);
 821         }
 822         return 0;
 823 err:
 824         DBG("apply_changes failed\n");
 825         return r;
 826 }
 827
 828 /* checks var and eventually tweaks it to something supported,
 829  * DO NOT MODIFY PAR */
 830 static int omapfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
 831 {
 832         int r;
 833
 834         DBG("check_var(%d)\n", FB2OFB(fbi)->id);
 835
 836         r = check_fb_var(fbi, var);
 837
 838         return r;
 839 }
 840
 841 /* set the video mode according to info->var */
 842 static int omapfb_set_par(struct fb_info *fbi)
 843 {
 844         int r;
 845
 846         DBG("set_par(%d)\n", FB2OFB(fbi)->id);
 847
 848         set_fb_fix(fbi);
 849         r = omapfb_apply_changes(fbi, 0);
 850
 851         return r;
 852 }
 853
 854 static int omapfb_pan_display(struct fb_var_screeninfo *var,
 855                 struct fb_info *fbi)
 856 {
 857         struct omapfb_info *ofbi = FB2OFB(fbi);
 858         struct omapfb2_device *fbdev = ofbi->fbdev;
 859         int r = 0;
 860
 861         DBG("pan_display(%d)\n", ofbi->id);
 862
 863         omapfb_lock(fbdev);
 864
 865         if (var->xoffset != fbi->var.xoffset ||
 866             var->yoffset != fbi->var.yoffset) {
 867                 struct fb_var_screeninfo new_var;
 868
 869                 new_var = fbi->var;
 870                 new_var.xoffset = var->xoffset;
 871                 new_var.yoffset = var->yoffset;
 872
 873                 r = check_fb_var(fbi, &new_var);
 874
 875                 if (r == 0) {
 876                         fbi->var = new_var;
 877                         set_fb_fix(fbi);
 878                         r = omapfb_apply_changes(fbi, 0);
 879                 }
 880         }
 881
 882         omapfb_unlock(fbdev);
 883
 884         return r;
 885 }
 886
 887 static void mmap_user_open(struct vm_area_struct *vma)
 888 {
 889         struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
 890
 891         atomic_inc(&ofbi->map_count);
 892 }
 893
 894 static void mmap_user_close(struct vm_area_struct *vma)
 895 {
 896         struct omapfb_info *ofbi = (struct omapfb_info *)vma->vm_private_data;
 897
 898         atomic_dec(&ofbi->map_count);
 899 }
 900
 901 static struct vm_operations_struct mmap_user_ops = {
 902         .open = mmap_user_open,
 903         .close = mmap_user_close,
 904 };
 905
 906 static int omapfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
 907 {
 908         struct omapfb_info *ofbi = FB2OFB(fbi);
 909         struct fb_fix_screeninfo *fix = &fbi->fix;
 910         unsigned long off;
 911         unsigned long start;
 912         u32 len;
 913
 914         if (vma->vm_end - vma->vm_start == 0)
 915                 return 0;
 916         if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
 917                 return -EINVAL;
 918         off = vma->vm_pgoff << PAGE_SHIFT;
 919
 920         start = omapfb_get_region_paddr(ofbi);
 921         len = fix->smem_len;
 922         if (off >= len)
 923                 return -EINVAL;
 924         if ((vma->vm_end - vma->vm_start + off) > len)
 925                 return -EINVAL;
 926
 927         off += start;
 928
 929         DBG("user mmap region start %lx, len %d, off %lx\n", start, len, off);
 930
 931         vma->vm_pgoff = off >> PAGE_SHIFT;
 932         vma->vm_flags |= VM_IO | VM_RESERVED;
 933         vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot);
 934         vma->vm_ops = &mmap_user_ops;
 935         vma->vm_private_data = ofbi;
 936         if (io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
 937                              vma->vm_end - vma->vm_start, vma->vm_page_prot))
 938                 return -EAGAIN;
 939         /* vm_ops.open won't be called for mmap itself. */
 940         atomic_inc(&ofbi->map_count);
 941         return 0;
 942 }
 943
 944 /* Store a single color palette entry into a pseudo palette or the hardware
 945  * palette if one is available. For now we support only 16bpp and thus store
 946  * the entry only to the pseudo palette.
 947  */
 948 static int _setcolreg(struct fb_info *fbi, u_int regno, u_int red, u_int green,
 949                 u_int blue, u_int transp, int update_hw_pal)
 950 {
 951         /*struct omapfb_info *ofbi = FB2OFB(fbi);*/
 952         /*struct omapfb2_device *fbdev = ofbi->fbdev;*/
 953         struct fb_var_screeninfo *var = &fbi->var;
 954         int r = 0;
 955
 956         enum omapfb_color_format mode = OMAPFB_COLOR_RGB24U; /* XXX */
 957
 958         /*switch (plane->color_mode) {*/
 959         switch (mode) {
 960         case OMAPFB_COLOR_YUV422:
 961         case OMAPFB_COLOR_YUV420:
 962         case OMAPFB_COLOR_YUY422:
 963                 r = -EINVAL;
 964                 break;
 965         case OMAPFB_COLOR_CLUT_8BPP:
 966         case OMAPFB_COLOR_CLUT_4BPP:
 967         case OMAPFB_COLOR_CLUT_2BPP:
 968         case OMAPFB_COLOR_CLUT_1BPP:
 969                 /*
 970                    if (fbdev->ctrl->setcolreg)
 971                    r = fbdev->ctrl->setcolreg(regno, red, green, blue,
 972                    transp, update_hw_pal);
 973                    */
 974                 /* Fallthrough */
 975                 r = -EINVAL;
 976                 break;
 977         case OMAPFB_COLOR_RGB565:
 978         case OMAPFB_COLOR_RGB444:
 979         case OMAPFB_COLOR_RGB24P:
 980         case OMAPFB_COLOR_RGB24U:
 981                 if (r != 0)
 982                         break;
 983
 984                 if (regno < 0) {
 985                         r = -EINVAL;
 986                         break;
 987                 }
 988
 989                 if (regno < 16) {
 990                         u16 pal;
 991                         pal = ((red >> (16 - var->red.length)) <<
 992                                         var->red.offset) |
 993                                 ((green >> (16 - var->green.length)) <<
 994                                  var->green.offset) |
 995                                 (blue >> (16 - var->blue.length));
 996                         ((u32 *)(fbi->pseudo_palette))[regno] = pal;
 997                 }
 998                 break;
 999         default:
1000                 BUG();
1001         }
1002         return r;
1003 }
1004
1005 static int omapfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
1006                 u_int transp, struct fb_info *info)
1007 {
1008         DBG("setcolreg\n");
1009
1010         return _setcolreg(info, regno, red, green, blue, transp, 1);
1011 }
1012
1013 static int omapfb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
1014 {
1015         int count, index, r;
1016         u16 *red, *green, *blue, *transp;
1017         u16 trans = 0xffff;
1018
1019         DBG("setcmap\n");
1020
1021         red     = cmap->red;
1022         green   = cmap->green;
1023         blue    = cmap->blue;
1024         transp  = cmap->transp;
1025         index   = cmap->start;
1026
1027         for (count = 0; count < cmap->len; count++) {
1028                 if (transp)
1029                         trans = *transp++;
1030                 r = _setcolreg(info, index++, *red++, *green++, *blue++, trans,
1031                                 count == cmap->len - 1);
1032                 if (r != 0)
1033                         return r;
1034         }
1035
1036         return 0;
1037 }
1038
1039 static int omapfb_blank(int blank, struct fb_info *fbi)
1040 {
1041         struct omapfb_info *ofbi = FB2OFB(fbi);
1042         struct omapfb2_device *fbdev = ofbi->fbdev;
1043         struct omap_display *display = fb2display(fbi);
1044         int do_update = 0;
1045         int r = 0;
1046
1047         omapfb_lock(fbdev);
1048
1049         switch (blank) {
1050         case FB_BLANK_UNBLANK:
1051                 if (display->state != OMAP_DSS_DISPLAY_SUSPENDED)
1052                         goto exit;
1053
1054                 if (display->resume)
1055                         r = display->resume(display);
1056
1057                 if (r == 0 && display->get_update_mode &&
1058                                 display->get_update_mode(display) ==
1059                                 OMAP_DSS_UPDATE_MANUAL)
1060                         do_update = 1;
1061
1062                 break;
1063
1064         case FB_BLANK_NORMAL:
1065                 /* FB_BLANK_NORMAL could be implemented.
1066                  * Needs DSS additions. */
1067         case FB_BLANK_VSYNC_SUSPEND:
1068         case FB_BLANK_HSYNC_SUSPEND:
1069         case FB_BLANK_POWERDOWN:
1070                 if (display->state != OMAP_DSS_DISPLAY_ACTIVE)
1071                         goto exit;
1072
1073                 if (display->suspend)
1074                         r = display->suspend(display);
1075
1076                 break;
1077
1078         default:
1079                 r = -EINVAL;
1080         }
1081
1082 exit:
1083         omapfb_unlock(fbdev);
1084
1085         if (r == 0 && do_update && display->update) {
1086                 u16 w, h;
1087                 display->get_resolution(display, &w, &h);
1088
1089                 r = display->update(display, 0, 0, w, h);
1090         }
1091
1092         return r;
1093 }
1094
1095 #if 0
1096 /* XXX fb_read and fb_write are needed for VRFB */
1097 ssize_t omapfb_write(struct fb_info *info, const char __user *buf,
1098                 size_t count, loff_t *ppos)
1099 {
1100         DBG("omapfb_write %d, %lu\n", count, (unsigned long)*ppos);
1101         // XXX needed for VRFB
1102         return count;
1103 }
1104 #endif
1105
1106 static struct fb_ops omapfb_ops = {
1107         .owner          = THIS_MODULE,
1108         .fb_open        = omapfb_open,
1109         .fb_release     = omapfb_release,
1110         .fb_fillrect    = cfb_fillrect,
1111         .fb_copyarea    = cfb_copyarea,
1112         .fb_imageblit   = cfb_imageblit,
1113         .fb_blank       = omapfb_blank,
1114         .fb_ioctl       = omapfb_ioctl,
1115         .fb_check_var   = omapfb_check_var,
1116         .fb_set_par     = omapfb_set_par,
1117         .fb_pan_display = omapfb_pan_display,
1118         .fb_mmap        = omapfb_mmap,
1119         .fb_setcolreg   = omapfb_setcolreg,
1120         .fb_setcmap     = omapfb_setcmap,
1121         //.fb_write     = omapfb_write,
1122 };
1123
1124 static void omapfb_free_fbmem(struct fb_info *fbi)
1125 {
1126         struct omapfb_info *ofbi = FB2OFB(fbi);
1127         struct omapfb2_device *fbdev = ofbi->fbdev;
1128         struct omapfb2_mem_region *rg;
1129
1130         rg = &ofbi->region;
1131
1132         if (rg->paddr)
1133                 if (omap_vram_free(rg->paddr, rg->size))
1134                         dev_err(fbdev->dev, "VRAM FREE failed\n");
1135
1136         if (rg->vaddr)
1137                 iounmap(rg->vaddr);
1138
1139         if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1140                 /* unmap the 0 angle rotation */
1141                 if (rg->vrfb.vaddr[0]) {
1142                         iounmap(rg->vrfb.vaddr[0]);
1143                         omap_vrfb_release_ctx(&rg->vrfb);
1144                 }
1145         }
1146
1147         rg->vaddr = NULL;
1148         rg->paddr = 0;
1149         rg->alloc = 0;
1150         rg->size = 0;
1151 }
1152
1153 static int omapfb_free_all_fbmem(struct omapfb2_device *fbdev)
1154 {
1155         int i;
1156
1157         DBG("free all fbmem\n");
1158
1159         for (i = 0; i < fbdev->num_fbs; i++) {
1160                 struct fb_info *fbi = fbdev->fbs[i];
1161                 omapfb_free_fbmem(fbi);
1162                 memset(&fbi->fix, 0, sizeof(fbi->fix));
1163                 memset(&fbi->var, 0, sizeof(fbi->var));
1164         }
1165
1166         return 0;
1167 }
1168
1169 static int omapfb_alloc_fbmem(struct fb_info *fbi, unsigned long size,
1170                 unsigned long paddr)
1171 {
1172         struct omapfb_info *ofbi = FB2OFB(fbi);
1173         struct omapfb2_device *fbdev = ofbi->fbdev;
1174         struct omapfb2_mem_region *rg;
1175         void __iomem *vaddr;
1176         int r;
1177         int clear = 0;
1178
1179         rg = &ofbi->region;
1180         memset(rg, 0, sizeof(*rg));
1181
1182         size = PAGE_ALIGN(size);
1183
1184         if (!paddr) {
1185                 DBG("allocating %lu bytes for fb %d\n", size, ofbi->id);
1186                 r = omap_vram_alloc(OMAPFB_MEMTYPE_SDRAM, size, &paddr);
1187                 clear = 1;
1188         } else {
1189                 DBG("reserving %lu bytes at %lx for fb %d\n", size, paddr,
1190                                 ofbi->id);
1191                 r = omap_vram_reserve(paddr, size);
1192         }
1193
1194         if (r) {
1195                 dev_err(fbdev->dev, "failed to allocate framebuffer\n");
1196                 return -ENOMEM;
1197         }
1198
1199         if (ofbi->rotation_type != OMAP_DSS_ROT_VRFB) {
1200                 vaddr = ioremap_wc(paddr, size);
1201
1202                 if (!vaddr) {
1203                         dev_err(fbdev->dev, "failed to ioremap framebuffer\n");
1204                         omap_vram_free(paddr, size);
1205                         return -ENOMEM;
1206                 }
1207
1208                 DBG("allocated VRAM paddr %lx, vaddr %p\n", paddr, vaddr);
1209
1210                 if (clear)
1211                         memset_io(vaddr, 0, size);
1212         } else {
1213                 void __iomem *va;
1214
1215                 r = omap_vrfb_request_ctx(&rg->vrfb);
1216                 if (r) {
1217                         dev_err(fbdev->dev, "vrfb create ctx failed\n");
1218                         return r;
1219                 }
1220
1221                 /* only ioremap the 0 angle view */
1222                 va = ioremap_wc(rg->vrfb.paddr[0], size);
1223
1224                 if(!va) {
1225                         printk(KERN_ERR "vrfb: ioremap failed\n");
1226                         omap_vrfb_release_ctx(&rg->vrfb);
1227                         return -ENOMEM;
1228                 }
1229
1230                 DBG("ioremapped vrfb area 0 to %p\n", va);
1231
1232                 rg->vrfb.vaddr[0] = va;
1233
1234                 vaddr = NULL;
1235
1236                 if (clear)
1237                         memset_io(va, 0, size);
1238         }
1239
1240         rg->paddr = paddr;
1241         rg->vaddr = vaddr;
1242         rg->size = size;
1243         rg->alloc = 1;
1244
1245         return 0;
1246 }
1247
1248 /* allocate fbmem using display resolution as reference */
1249 static int omapfb_alloc_fbmem_display(struct fb_info *fbi, unsigned long size,
1250                 unsigned long paddr)
1251 {
1252         struct omapfb_info *ofbi = FB2OFB(fbi);
1253         struct omap_display *display;
1254         int bytespp;
1255
1256         display =  fb2display(fbi);
1257
1258         if (!display)
1259                 return 0;
1260
1261         switch (display->get_recommended_bpp(display)) {
1262         case 16:
1263                 bytespp = 2;
1264                 break;
1265         case 24:
1266                 bytespp = 4;
1267                 break;
1268         default:
1269                 bytespp = 4;
1270                 break;
1271         }
1272
1273         if (!size) {
1274                 u16 w, h;
1275
1276                 display->get_resolution(display, &w, &h);
1277
1278                 if (ofbi->rotation_type == OMAP_DSS_ROT_VRFB) {
1279 #ifdef DEBUG
1280                         int oldw = w, oldh = h;
1281 #endif
1282
1283                         omap_vrfb_adjust_size(&w, &h, bytespp);
1284
1285                         /* Because we change the resolution of the 0 degree view,
1286                          * we need to alloc max(w, h) for height */
1287                         h = max(w, h);
1288                         w = OMAP_VRFB_LINE_LEN;
1289
1290                         DBG("adjusting fb mem size for VRFB, %dx%d -> %dx%d\n",
1291                                         oldw, oldh, w, h);
1292                 }
1293
1294                 size = w * h * bytespp;
1295         }
1296
1297         return omapfb_alloc_fbmem(fbi, size, paddr);
1298 }
1299
1300 static enum omap_color_mode fb_format_to_dss_mode(enum omapfb_color_format format)
1301 {
1302         enum omap_color_mode mode;
1303
1304         switch (format) {
1305         case OMAPFB_COLOR_RGB565:
1306                 mode = OMAP_DSS_COLOR_RGB16;
1307                 break;
1308         case OMAPFB_COLOR_YUV422:
1309                 mode = OMAP_DSS_COLOR_YUV2;
1310                 break;
1311         case OMAPFB_COLOR_CLUT_8BPP:
1312                 mode = OMAP_DSS_COLOR_CLUT8;
1313                 break;
1314         case OMAPFB_COLOR_CLUT_4BPP:
1315                 mode = OMAP_DSS_COLOR_CLUT4;
1316                 break;
1317         case OMAPFB_COLOR_CLUT_2BPP:
1318                 mode = OMAP_DSS_COLOR_CLUT2;
1319                 break;
1320         case OMAPFB_COLOR_CLUT_1BPP:
1321                 mode = OMAP_DSS_COLOR_CLUT1;
1322                 break;
1323         case OMAPFB_COLOR_RGB444:
1324                 mode = OMAP_DSS_COLOR_RGB12U;
1325                 break;
1326         case OMAPFB_COLOR_YUY422:
1327                 mode = OMAP_DSS_COLOR_UYVY;
1328                 break;
1329         case OMAPFB_COLOR_ARGB16:
1330                 mode = OMAP_DSS_COLOR_ARGB16;
1331                 break;
1332         case OMAPFB_COLOR_RGB24U:
1333                 mode = OMAP_DSS_COLOR_RGB24U;
1334                 break;
1335         case OMAPFB_COLOR_RGB24P:
1336                 mode = OMAP_DSS_COLOR_RGB24P;
1337                 break;
1338         case OMAPFB_COLOR_ARGB32:
1339                 mode = OMAP_DSS_COLOR_ARGB32;
1340                 break;
1341         case OMAPFB_COLOR_RGBA32:
1342                 mode = OMAP_DSS_COLOR_RGBA32;
1343                 break;
1344         case OMAPFB_COLOR_RGBX32:
1345                 mode = OMAP_DSS_COLOR_RGBX32;
1346                 break;
1347         default:
1348                 mode = -EINVAL;
1349         }
1350
1351         return mode;
1352 }
1353
1354 static int omapfb_parse_vram_param(const char *param, int max_entries,
1355                 unsigned long *sizes, unsigned long *paddrs)
1356 {
1357         int fbnum;
1358         unsigned long size;
1359         unsigned long paddr = 0;
1360         char *p, *start;
1361
1362         start = (char *)param;
1363
1364         while (1) {
1365                 p = start;
1366
1367                 fbnum = simple_strtoul(p, &p, 10);
1368
1369                 if (p == param)
1370                         return -EINVAL;
1371
1372                 if (*p != ':')
1373                         return -EINVAL;
1374
1375                 if (fbnum >= max_entries)
1376                         return -EINVAL;
1377
1378                 size = memparse(p + 1, &p);
1379
1380                 if (!size)
1381                         return -EINVAL;
1382
1383                 paddr = 0;
1384
1385                 if (*p == '@') {
1386                         paddr = simple_strtoul(p + 1, &p, 16);
1387
1388                         if (!paddr)
1389                                 return -EINVAL;
1390
1391                 }
1392
1393                 paddrs[fbnum] = paddr;
1394                 sizes[fbnum] = size;
1395
1396                 if (*p == 0)
1397                         break;
1398
1399                 if (*p != ',')
1400                         return -EINVAL;
1401
1402                 ++p;
1403
1404                 start = p;
1405         }
1406
1407         return 0;
1408 }
1409
1410 static int omapfb_allocate_all_fbs(struct omapfb2_device *fbdev)
1411 {
1412         int i, r;
1413         unsigned long vram_sizes[10];
1414         unsigned long vram_paddrs[10];
1415
1416         memset(&vram_sizes, 0, sizeof(vram_sizes));
1417         memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1418
1419         if (def_vram && omapfb_parse_vram_param(def_vram, 10,
1420                                 vram_sizes, vram_paddrs)) {
1421                 dev_err(fbdev->dev, "failed to parse vram parameter\n");
1422
1423                 memset(&vram_sizes, 0, sizeof(vram_sizes));
1424                 memset(&vram_paddrs, 0, sizeof(vram_paddrs));
1425         }
1426
1427         if (fbdev->dev->platform_data) {
1428                 struct omapfb_platform_data *opd;
1429                 opd = fbdev->dev->platform_data;
1430                 for (i = 0; i < opd->mem_desc.region_cnt; ++i) {
1431                         if (!vram_sizes[i]) {
1432                                 unsigned long size;
1433                                 unsigned long paddr;
1434
1435                                 size = opd->mem_desc.region[i].size;
1436                                 paddr = opd->mem_desc.region[i].paddr;
1437
1438                                 vram_sizes[i] = size;
1439                                 vram_paddrs[i] = paddr;
1440                         }
1441                 }
1442         }
1443
1444         for (i = 0; i < fbdev->num_fbs; i++) {
1445                 /* allocate memory automatically only for fb0, or if
1446                  * excplicitly defined with vram or plat data option */
1447                 if (i == 0 || vram_sizes[i] != 0) {
1448                         r = omapfb_alloc_fbmem_display(fbdev->fbs[i],
1449                                         vram_sizes[i], vram_paddrs[i]);
1450
1451                         if (r)
1452                                 return r;
1453                 }
1454         }
1455
1456         for (i = 0; i < fbdev->num_fbs; i++) {
1457                 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1458                 struct omapfb2_mem_region *rg;
1459                 rg = &ofbi->region;
1460
1461                 DBG("region%d phys %08x virt %p size=%lu\n",
1462                                 i,
1463                                 rg->paddr,
1464                                 rg->vaddr,
1465                                 rg->size);
1466         }
1467
1468         return 0;
1469 }
1470
1471 int omapfb_realloc_fbmem(struct fb_info *fbi, unsigned long size, int type)
1472 {
1473         struct omapfb_info *ofbi = FB2OFB(fbi);
1474         struct omapfb2_device *fbdev = ofbi->fbdev;
1475         struct omap_display *display = fb2display(fbi);
1476         struct omapfb2_mem_region *rg = &ofbi->region;
1477         unsigned long old_size = rg->size;
1478         unsigned long old_paddr = rg->paddr;
1479         int old_type = rg->type;
1480         int r;
1481
1482         if (type > OMAPFB_MEMTYPE_MAX)
1483                 return -EINVAL;
1484
1485         size = PAGE_ALIGN(size);
1486
1487         if (old_size == size && old_type == type)
1488                 return 0;
1489
1490         if (display && display->sync)
1491                         display->sync(display);
1492
1493         omapfb_free_fbmem(fbi);
1494
1495         if (size == 0) {
1496                 memset(&fbi->fix, 0, sizeof(fbi->fix));
1497                 memset(&fbi->var, 0, sizeof(fbi->var));
1498                 return 0;
1499         }
1500
1501         r = omapfb_alloc_fbmem(fbi, size, 0);
1502
1503         if (r) {
1504                 if (old_size)
1505                         omapfb_alloc_fbmem(fbi, old_size, old_paddr);
1506
1507                 if (rg->size == 0) {
1508                         memset(&fbi->fix, 0, sizeof(fbi->fix));
1509                         memset(&fbi->var, 0, sizeof(fbi->var));
1510                 }
1511
1512                 return r;
1513         }
1514
1515         if (old_size == size)
1516                 return 0;
1517
1518         if (old_size == 0) {
1519                 DBG("initializing fb %d\n", ofbi->id);
1520                 r = omapfb_fb_init(fbdev, fbi);
1521                 if (r) {
1522                         DBG("omapfb_fb_init failed\n");
1523                         goto err;
1524                 }
1525                 r = omapfb_apply_changes(fbi, 1);
1526                 if (r) {
1527                         DBG("omapfb_apply_changes failed\n");
1528                         goto err;
1529                 }
1530         } else {
1531                 struct fb_var_screeninfo new_var;
1532                 memcpy(&new_var, &fbi->var, sizeof(new_var));
1533                 r = check_fb_var(fbi, &new_var);
1534                 if (r)
1535                         goto err;
1536                 memcpy(&fbi->var, &new_var, sizeof(fbi->var));
1537                 set_fb_fix(fbi);
1538         }
1539
1540         return 0;
1541 err:
1542         omapfb_free_fbmem(fbi);
1543         memset(&fbi->fix, 0, sizeof(fbi->fix));
1544         memset(&fbi->var, 0, sizeof(fbi->var));
1545         return r;
1546 }
1547
1548 /* initialize fb_info, var, fix to something sane based on the display */
1549 int omapfb_fb_init(struct omapfb2_device *fbdev, struct fb_info *fbi)
1550 {
1551         struct fb_var_screeninfo *var = &fbi->var;
1552         struct fb_fix_screeninfo *fix = &fbi->fix;
1553         struct omap_display *display = fb2display(fbi);
1554         struct omapfb_info *ofbi = FB2OFB(fbi);
1555         int r = 0;
1556
1557         fbi->fbops = &omapfb_ops;
1558         fbi->flags = FBINFO_FLAG_DEFAULT;
1559         fbi->pseudo_palette = fbdev->pseudo_palette;
1560
1561         strncpy(fix->id, MODULE_NAME, sizeof(fix->id));
1562
1563         if (ofbi->region.size == 0) {
1564                 memset(&fbi->fix, 0, sizeof(fbi->fix));
1565                 memset(&fbi->var, 0, sizeof(fbi->var));
1566                 return 0;
1567         }
1568
1569         var->nonstd = 0;
1570         var->bits_per_pixel = 0;
1571
1572         var->rotate = ofbi->rotation;
1573
1574         /*
1575          * Check if there is a default color format set in the board file,
1576          * and use this format instead the default deducted from the
1577          * display bpp.
1578          */
1579         if (fbdev->dev->platform_data) {
1580                 struct omapfb_platform_data *opd;
1581                 int id = ofbi->id;
1582
1583                 opd = fbdev->dev->platform_data;
1584                 if (opd->mem_desc.region[id].format_used) {
1585                         enum omap_color_mode mode;
1586                         enum omapfb_color_format format;
1587
1588                         format = opd->mem_desc.region[id].format;
1589                         mode = fb_format_to_dss_mode(format);
1590                         if (mode < 0) {
1591                                 r = mode;
1592                                 goto err;
1593                         }
1594                         r = dss_mode_to_fb_mode(mode, var);
1595                         if (r < 0)
1596                                 goto err;
1597                 }
1598         }
1599
1600         if (display) {
1601                 u16 w, h;
1602                 display->get_resolution(display, &w, &h);
1603
1604                 if (ofbi->rotation == FB_ROTATE_CW ||
1605                                 ofbi->rotation == FB_ROTATE_CCW) {
1606                         var->xres = h;
1607                         var->yres = w;
1608                 } else {
1609                         var->xres = w;
1610                         var->yres = h;
1611                 }
1612
1613                 var->xres_virtual = var->xres;
1614                 var->yres_virtual = var->yres;
1615
1616                 if (!var->bits_per_pixel) {
1617                         switch (display->get_recommended_bpp(display)) {
1618                                 case 16:
1619                                         var->bits_per_pixel = 16;
1620                                         break;
1621                                 case 24:
1622                                         var->bits_per_pixel = 32;
1623                                         break;
1624                                 default:
1625                                         dev_err(fbdev->dev, "illegal display bpp\n");
1626                                         return -EINVAL;
1627                         }
1628                 }
1629         } else {
1630                 /* if there's no display, let's just guess some basic values */
1631                 var->xres = 320;
1632                 var->yres = 240;
1633                 var->xres_virtual = var->xres;
1634                 var->yres_virtual = var->yres;
1635                 if (!var->bits_per_pixel)
1636                         var->bits_per_pixel = 16;
1637         }
1638
1639         r = check_fb_var(fbi, var);
1640         if (r)
1641                 goto err;
1642
1643         set_fb_fix(fbi);
1644
1645         r = fb_alloc_cmap(&fbi->cmap, 256, 0);
1646         if (r)
1647                 dev_err(fbdev->dev, "unable to allocate color map memory\n");
1648
1649 err:
1650         return r;
1651 }
1652
1653 static void fbinfo_cleanup(struct omapfb2_device *fbdev, struct fb_info *fbi)
1654 {
1655         fb_dealloc_cmap(&fbi->cmap);
1656 }
1657
1658
1659 static void omapfb_free_resources(struct omapfb2_device *fbdev)
1660 {
1661         int i;
1662
1663         DBG("free_resources\n");
1664
1665         if (fbdev == NULL)
1666                 return;
1667
1668         for (i = 0; i < fbdev->num_fbs; i++)
1669                 unregister_framebuffer(fbdev->fbs[i]);
1670
1671         /* free the reserved fbmem */
1672         omapfb_free_all_fbmem(fbdev);
1673
1674         for (i = 0; i < fbdev->num_fbs; i++) {
1675                 fbinfo_cleanup(fbdev, fbdev->fbs[i]);
1676                 framebuffer_release(fbdev->fbs[i]);
1677         }
1678
1679         for (i = 0; i < fbdev->num_displays; i++) {
1680                 if (fbdev->displays[i]->state != OMAP_DSS_DISPLAY_DISABLED)
1681                         fbdev->displays[i]->disable(fbdev->displays[i]);
1682
1683                 omap_dss_put_display(fbdev->displays[i]);
1684         }
1685
1686         dev_set_drvdata(fbdev->dev, NULL);
1687         kfree(fbdev);
1688 }
1689
1690 static int omapfb_create_framebuffers(struct omapfb2_device *fbdev)
1691 {
1692         int r, i;
1693
1694         fbdev->num_fbs = 0;
1695
1696         DBG("create %d framebuffers\n", CONFIG_FB_OMAP2_NUM_FBS);
1697
1698         /* allocate fb_infos */
1699         for (i = 0; i < CONFIG_FB_OMAP2_NUM_FBS; i++) {
1700                 struct fb_info *fbi;
1701                 struct omapfb_info *ofbi;
1702
1703                 fbi = framebuffer_alloc(sizeof(struct omapfb_info),
1704                                 fbdev->dev);
1705
1706                 if (fbi == NULL) {
1707                         dev_err(fbdev->dev,
1708                                 "unable to allocate memory for plane info\n");
1709                         return -ENOMEM;
1710                 }
1711
1712                 fbdev->fbs[i] = fbi;
1713
1714                 ofbi = FB2OFB(fbi);
1715                 ofbi->fbdev = fbdev;
1716                 ofbi->id = i;
1717
1718                 /* assign these early, so that fb alloc can use them */
1719                 ofbi->rotation_type = def_vrfb ? OMAP_DSS_ROT_VRFB :
1720                         OMAP_DSS_ROT_DMA;
1721                 ofbi->rotation = def_rotate;
1722                 ofbi->mirror = def_mirror;
1723
1724                 fbdev->num_fbs++;
1725         }
1726
1727         DBG("fb_infos allocated\n");
1728
1729         /* assign overlays for the fbs */
1730         for (i = 0; i < min(fbdev->num_fbs, fbdev->num_overlays); i++) {
1731                 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[i]);
1732
1733                 ofbi->overlays[0] = fbdev->overlays[i];
1734                 ofbi->num_overlays = 1;
1735         }
1736
1737         /* allocate fb memories */
1738         r = omapfb_allocate_all_fbs(fbdev);
1739         if (r) {
1740                 dev_err(fbdev->dev, "failed to allocate fbmem\n");
1741                 return r;
1742         }
1743
1744         DBG("fbmems allocated\n");
1745
1746         /* setup fb_infos */
1747         for (i = 0; i < fbdev->num_fbs; i++) {
1748                 r = omapfb_fb_init(fbdev, fbdev->fbs[i]);
1749                 if (r) {
1750                         dev_err(fbdev->dev, "failed to setup fb_info\n");
1751                         return r;
1752                 }
1753         }
1754
1755         DBG("fb_infos initialized\n");
1756
1757         for (i = 0; i < fbdev->num_fbs; i++) {
1758                 r = register_framebuffer(fbdev->fbs[i]);
1759                 if (r != 0) {
1760                         dev_err(fbdev->dev,
1761                                 "registering framebuffer %d failed\n", i);
1762                         return r;
1763                 }
1764         }
1765
1766         DBG("framebuffers registered\n");
1767
1768         for (i = 0; i < fbdev->num_fbs; i++) {
1769                 r = omapfb_apply_changes(fbdev->fbs[i], 1);
1770                 if (r) {
1771                         dev_err(fbdev->dev, "failed to change mode\n");
1772                         return r;
1773                 }
1774         }
1775
1776         DBG("create sysfs for fbs\n");
1777         r = omapfb_create_sysfs(fbdev);
1778         if (r) {
1779                 dev_err(fbdev->dev, "failed to create sysfs entries\n");
1780                 return r;
1781         }
1782
1783         /* Enable fb0 */
1784         if (fbdev->num_fbs > 0) {
1785                 struct omapfb_info *ofbi = FB2OFB(fbdev->fbs[0]);
1786
1787                 if (ofbi->num_overlays > 0 ) {
1788                         struct omap_overlay *ovl = ofbi->overlays[0];
1789
1790                         r = omapfb_overlay_enable(ovl, 1);
1791
1792                         if (r) {
1793                                 dev_err(fbdev->dev,
1794                                                 "failed to enable overlay\n");
1795                                 return r;
1796                         }
1797                 }
1798         }
1799
1800         DBG("create_framebuffers done\n");
1801
1802         return 0;
1803 }
1804
1805 int omapfb_mode_to_timings(const char *mode_str,
1806                 struct omap_video_timings *timings, u8 *bpp)
1807 {
1808         struct fb_info fbi;
1809         struct fb_var_screeninfo var;
1810         struct fb_ops fbops;
1811         int r;
1812
1813 #ifdef CONFIG_OMAP2_DSS_VENC
1814         if (strcmp(mode_str, "pal") == 0) {
1815                 *timings = omap_dss_pal_timings;
1816                 *bpp = 0;
1817                 return 0;
1818         } else if (strcmp(mode_str, "ntsc") == 0) {
1819                 *timings = omap_dss_ntsc_timings;
1820                 *bpp = 0;
1821                 return 0;
1822         }
1823 #endif
1824
1825         /* this is quite a hack, but I wanted to use the modedb and for
1826          * that we need fb_info and var, so we create dummy ones */
1827
1828         memset(&fbi, 0, sizeof(fbi));
1829         memset(&var, 0, sizeof(var));
1830         memset(&fbops, 0, sizeof(fbops));
1831         fbi.fbops = &fbops;
1832
1833         r = fb_find_mode(&var, &fbi, mode_str, NULL, 0, NULL, 24);
1834
1835         if (r != 0) {
1836                 timings->pixel_clock = PICOS2KHZ(var.pixclock);
1837                 timings->hfp = var.left_margin;
1838                 timings->hbp = var.right_margin;
1839                 timings->vfp = var.upper_margin;
1840                 timings->vbp = var.lower_margin;
1841                 timings->hsw = var.hsync_len;
1842                 timings->vsw = var.vsync_len;
1843                 timings->x_res = var.xres;
1844                 timings->y_res = var.yres;
1845
1846                 switch (var.bits_per_pixel) {
1847                 case 16:
1848                         *bpp = 16;
1849                         break;
1850                 case 24:
1851                 case 32:
1852                 default:
1853                         *bpp = 24;
1854                         break;
1855                 }
1856
1857                 return 0;
1858         } else {
1859                 return -EINVAL;
1860         }
1861 }
1862
1863 static int omapfb_set_def_mode(struct omap_display *display, char *mode_str)
1864 {
1865         int r;
1866         u8 bpp;
1867         struct omap_video_timings timings;
1868
1869         r = omapfb_mode_to_timings(mode_str, &timings, &bpp);
1870         if (r)
1871                 return r;
1872
1873         display->panel->recommended_bpp = bpp;
1874
1875         if (!display->check_timings || !display->set_timings)
1876                 return -EINVAL;
1877
1878         r = display->check_timings(display, &timings);
1879         if (r)
1880                 return r;
1881
1882         display->set_timings(display, &timings);
1883
1884         return 0;
1885 }
1886
1887 static int omapfb_parse_def_modes(struct omapfb2_device *fbdev)
1888 {
1889         char *str, *options, *this_opt;
1890         int r = 0;
1891
1892         str = kmalloc(strlen(def_mode) + 1, GFP_KERNEL);
1893         strcpy(str, def_mode);
1894         options = str;
1895
1896         while (!r && (this_opt = strsep(&options, ",")) != NULL) {
1897                 char *p, *display_str, *mode_str;
1898                 struct omap_display *display;
1899                 int i;
1900
1901                 p = strchr(this_opt, ':');
1902                 if (!p) {
1903                         r = -EINVAL;
1904                         break;
1905                 }
1906
1907                 *p = 0;
1908                 display_str = this_opt;
1909                 mode_str = p + 1;
1910
1911                 display = NULL;
1912                 for (i = 0; i < fbdev->num_displays; ++i) {
1913                         if (strcmp(fbdev->displays[i]->name,
1914                                                 display_str) == 0) {
1915                                 display = fbdev->displays[i];
1916                                 break;
1917                         }
1918                 }
1919
1920                 if (!display) {
1921                         r = -EINVAL;
1922                         break;
1923                 }
1924
1925                 r = omapfb_set_def_mode(display, mode_str);
1926                 if (r)
1927                         break;
1928         }
1929
1930         kfree(str);
1931
1932         return r;
1933 }
1934
1935 static int omapfb_probe(struct platform_device *pdev)
1936 {
1937         struct omapfb2_device *fbdev = NULL;
1938         int r = 0;
1939         int i, t;
1940         struct omap_overlay *ovl;
1941         struct omap_display *def_display;
1942
1943         DBG("omapfb_probe\n");
1944
1945         if (pdev->num_resources != 0) {
1946                 dev_err(&pdev->dev, "probed for an unknown device\n");
1947                 r = -ENODEV;
1948                 goto err0;
1949         }
1950
1951         fbdev = kzalloc(sizeof(struct omapfb2_device), GFP_KERNEL);
1952         if (fbdev == NULL) {
1953                 r = -ENOMEM;
1954                 goto err0;
1955         }
1956
1957         mutex_init(&fbdev->mtx);
1958
1959         fbdev->dev = &pdev->dev;
1960         platform_set_drvdata(pdev, fbdev);
1961
1962         fbdev->num_displays = 0;
1963         t = omap_dss_get_num_displays();
1964         for (i = 0; i < t; i++) {
1965                 struct omap_display *display;
1966                 display = omap_dss_get_display(i);
1967                 if (!display) {
1968                         dev_err(&pdev->dev, "can't get display %d\n", i);
1969                         r = -EINVAL;
1970                         goto cleanup;
1971                 }
1972
1973                 fbdev->displays[fbdev->num_displays++] = display;
1974         }
1975
1976         if (fbdev->num_displays == 0) {
1977                 dev_err(&pdev->dev, "no displays\n");
1978                 r = -EINVAL;
1979                 goto cleanup;
1980         }
1981
1982         fbdev->num_overlays = omap_dss_get_num_overlays();
1983         for (i = 0; i < fbdev->num_overlays; i++)
1984                 fbdev->overlays[i] = omap_dss_get_overlay(i);
1985
1986         fbdev->num_managers = omap_dss_get_num_overlay_managers();
1987         for (i = 0; i < fbdev->num_managers; i++)
1988                 fbdev->managers[i] = omap_dss_get_overlay_manager(i);
1989
1990
1991         /* gfx overlay should be the default one. find a display
1992          * connected to that, and use it as default display */
1993         ovl = omap_dss_get_overlay(0);
1994         if (ovl->manager && ovl->manager->display) {
1995                 def_display = ovl->manager->display;
1996         } else {
1997                 dev_err(&pdev->dev, "cannot find default display\n");
1998                 r = -EINVAL;
1999                 goto cleanup;
2000         }
2001
2002         if (def_mode && strlen(def_mode) > 0) {
2003                 if (omapfb_parse_def_modes(fbdev))
2004                         dev_err(&pdev->dev, "cannot parse default modes\n");
2005         }
2006
2007         r = omapfb_create_framebuffers(fbdev);
2008         if (r)
2009                 goto cleanup;
2010
2011         for (i = 0; i < fbdev->num_managers; i++) {
2012                 struct omap_overlay_manager *mgr;
2013                 mgr = fbdev->managers[i];
2014                 r = mgr->apply(mgr);
2015                 if (r) {
2016                         dev_err(fbdev->dev, "failed to apply dispc config\n");
2017                         goto cleanup;
2018                 }
2019         }
2020
2021         DBG("mgr->apply'ed\n");
2022
2023         r = def_display->enable(def_display);
2024         if (r) {
2025                 dev_err(fbdev->dev, "Failed to enable display '%s'\n",
2026                                 def_display->name);
2027                 goto cleanup;
2028         }
2029
2030         /* set the update mode */
2031         if (def_display->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
2032 #ifdef CONFIG_FB_OMAP2_FORCE_AUTO_UPDATE
2033                 if (def_display->set_update_mode)
2034                         def_display->set_update_mode(def_display,
2035                                         OMAP_DSS_UPDATE_AUTO);
2036                 if (def_display->enable_te)
2037                         def_display->enable_te(def_display, 1);
2038 #else
2039                 if (def_display->set_update_mode)
2040                         def_display->set_update_mode(def_display,
2041                                         OMAP_DSS_UPDATE_MANUAL);
2042                 if (def_display->enable_te)
2043                         def_display->enable_te(def_display, 0);
2044 #endif
2045         } else {
2046                 if (def_display->set_update_mode)
2047                         def_display->set_update_mode(def_display,
2048                                         OMAP_DSS_UPDATE_AUTO);
2049         }
2050
2051         for (i = 0; i < fbdev->num_displays; i++) {
2052                 struct omap_display *display = fbdev->displays[i];
2053                 u16 w, h;
2054
2055                 if (!display->get_update_mode || !display->update)
2056                         continue;
2057
2058                 if (display->get_update_mode(display) ==
2059                                 OMAP_DSS_UPDATE_MANUAL) {
2060
2061                         display->get_resolution(display, &w, &h);
2062                         display->update(display, 0, 0, w, h);
2063                 }
2064         }
2065
2066         DBG("display->updated\n");
2067
2068         return 0;
2069
2070 cleanup:
2071         omapfb_free_resources(fbdev);
2072 err0:
2073         dev_err(&pdev->dev, "failed to setup omapfb\n");
2074         return r;
2075 }
2076
2077 static int omapfb_remove(struct platform_device *pdev)
2078 {
2079         struct omapfb2_device *fbdev = platform_get_drvdata(pdev);
2080
2081         /* FIXME: wait till completion of pending events */
2082
2083         omapfb_remove_sysfs(fbdev);
2084
2085         omapfb_free_resources(fbdev);
2086
2087         return 0;
2088 }
2089
2090 static struct platform_driver omapfb_driver = {
2091         .probe          = omapfb_probe,
2092         .remove         = omapfb_remove,
2093         .driver         = {
2094                 .name   = "omapfb",
2095                 .owner  = THIS_MODULE,
2096         },
2097 };
2098
2099 static int __init omapfb_init(void)
2100 {
2101         DBG("omapfb_init\n");
2102
2103         if (platform_driver_register(&omapfb_driver)) {
2104                 printk(KERN_ERR "failed to register omapfb driver\n");
2105                 return -ENODEV;
2106         }
2107
2108         return 0;
2109 }
2110
2111 static void __exit omapfb_exit(void)
2112 {
2113         DBG("omapfb_exit\n");
2114         platform_driver_unregister(&omapfb_driver);
2115 }
2116
2117 module_param_named(mode, def_mode, charp, 0);
2118 module_param_named(vram, def_vram, charp, 0);
2119 module_param_named(rotate, def_rotate, int, 0);
2120 module_param_named(vrfb, def_vrfb, bool, 0);
2121 module_param_named(mirror, def_mirror, bool, 0);
2122
2123 /* late_initcall to let panel/ctrl drivers loaded first.
2124  * I guess better option would be a more dynamic approach,
2125  * so that omapfb reacts to new panels when they are loaded */
2126 late_initcall(omapfb_init);
2127 /*module_init(omapfb_init);*/
2128 module_exit(omapfb_exit);
2129
2130 MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
2131 MODULE_DESCRIPTION("OMAP2/3 Framebuffer");
2132 MODULE_LICENSE("GPL v2");