drivers/gpu/drm/ast/ast_mode.c

   1 /*
   2  * Copyright 2012 Red Hat Inc.
   3  * Parts based on xf86-video-ast
   4  * Copyright (c) 2005 ASPEED Technology Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  */
  27 /*
  28  * Authors: Dave Airlie <[email protected]>
  29  */
  30
  31 #include <linux/export.h>
  32 #include <linux/pci.h>
  33
  34 #include <drm/drm_atomic.h>
  35 #include <drm/drm_atomic_helper.h>
  36 #include <drm/drm_atomic_state_helper.h>
  37 #include <drm/drm_crtc.h>
  38 #include <drm/drm_crtc_helper.h>
  39 #include <drm/drm_fourcc.h>
  40 #include <drm/drm_gem_atomic_helper.h>
  41 #include <drm/drm_gem_framebuffer_helper.h>
  42 #include <drm/drm_gem_vram_helper.h>
  43 #include <drm/drm_managed.h>
  44 #include <drm/drm_plane_helper.h>
  45 #include <drm/drm_probe_helper.h>
  46 #include <drm/drm_simple_kms_helper.h>
  47
  48 #include "ast_drv.h"
  49 #include "ast_tables.h"
  50
  51 static inline void ast_load_palette_index(struct ast_private *ast,
  52                                      u8 index, u8 red, u8 green,
  53                                      u8 blue)
  54 {
  55         ast_io_write8(ast, AST_IO_DAC_INDEX_WRITE, index);
  56         ast_io_read8(ast, AST_IO_SEQ_PORT);
  57         ast_io_write8(ast, AST_IO_DAC_DATA, red);
  58         ast_io_read8(ast, AST_IO_SEQ_PORT);
  59         ast_io_write8(ast, AST_IO_DAC_DATA, green);
  60         ast_io_read8(ast, AST_IO_SEQ_PORT);
  61         ast_io_write8(ast, AST_IO_DAC_DATA, blue);
  62         ast_io_read8(ast, AST_IO_SEQ_PORT);
  63 }
  64
  65 static void ast_crtc_load_lut(struct ast_private *ast, struct drm_crtc *crtc)
  66 {
  67         u16 *r, *g, *b;
  68         int i;
  69
  70         if (!crtc->enabled)
  71                 return;
  72
  73         r = crtc->gamma_store;
  74         g = r + crtc->gamma_size;
  75         b = g + crtc->gamma_size;
  76
  77         for (i = 0; i < 256; i++)
  78                 ast_load_palette_index(ast, i, *r++ >> 8, *g++ >> 8, *b++ >> 8);
  79 }
  80
  81 static bool ast_get_vbios_mode_info(const struct drm_format_info *format,
  82                                     const struct drm_display_mode *mode,
  83                                     struct drm_display_mode *adjusted_mode,
  84                                     struct ast_vbios_mode_info *vbios_mode)
  85 {
  86         u32 refresh_rate_index = 0, refresh_rate;
  87         const struct ast_vbios_enhtable *best = NULL;
  88         u32 hborder, vborder;
  89         bool check_sync;
  90
  91         switch (format->cpp[0] * 8) {
  92         case 8:
  93                 vbios_mode->std_table = &vbios_stdtable[VGAModeIndex];
  94                 break;
  95         case 16:
  96                 vbios_mode->std_table = &vbios_stdtable[HiCModeIndex];
  97                 break;
  98         case 24:
  99         case 32:
 100                 vbios_mode->std_table = &vbios_stdtable[TrueCModeIndex];
 101                 break;
 102         default:
 103                 return false;
 104         }
 105
 106         switch (mode->crtc_hdisplay) {
 107         case 640:
 108                 vbios_mode->enh_table = &res_640x480[refresh_rate_index];
 109                 break;
 110         case 800:
 111                 vbios_mode->enh_table = &res_800x600[refresh_rate_index];
 112                 break;
 113         case 1024:
 114                 vbios_mode->enh_table = &res_1024x768[refresh_rate_index];
 115                 break;
 116         case 1280:
 117                 if (mode->crtc_vdisplay == 800)
 118                         vbios_mode->enh_table = &res_1280x800[refresh_rate_index];
 119                 else
 120                         vbios_mode->enh_table = &res_1280x1024[refresh_rate_index];
 121                 break;
 122         case 1360:
 123                 vbios_mode->enh_table = &res_1360x768[refresh_rate_index];
 124                 break;
 125         case 1440:
 126                 vbios_mode->enh_table = &res_1440x900[refresh_rate_index];
 127                 break;
 128         case 1600:
 129                 if (mode->crtc_vdisplay == 900)
 130                         vbios_mode->enh_table = &res_1600x900[refresh_rate_index];
 131                 else
 132                         vbios_mode->enh_table = &res_1600x1200[refresh_rate_index];
 133                 break;
 134         case 1680:
 135                 vbios_mode->enh_table = &res_1680x1050[refresh_rate_index];
 136                 break;
 137         case 1920:
 138                 if (mode->crtc_vdisplay == 1080)
 139                         vbios_mode->enh_table = &res_1920x1080[refresh_rate_index];
 140                 else
 141                         vbios_mode->enh_table = &res_1920x1200[refresh_rate_index];
 142                 break;
 143         default:
 144                 return false;
 145         }
 146
 147         refresh_rate = drm_mode_vrefresh(mode);
 148         check_sync = vbios_mode->enh_table->flags & WideScreenMode;
 149
 150         while (1) {
 151                 const struct ast_vbios_enhtable *loop = vbios_mode->enh_table;
 152
 153                 while (loop->refresh_rate != 0xff) {
 154                         if ((check_sync) &&
 155                             (((mode->flags & DRM_MODE_FLAG_NVSYNC)  &&
 156                               (loop->flags & PVSync))  ||
 157                              ((mode->flags & DRM_MODE_FLAG_PVSYNC)  &&
 158                               (loop->flags & NVSync))  ||
 159                              ((mode->flags & DRM_MODE_FLAG_NHSYNC)  &&
 160                               (loop->flags & PHSync))  ||
 161                              ((mode->flags & DRM_MODE_FLAG_PHSYNC)  &&
 162                               (loop->flags & NHSync)))) {
 163                                 loop++;
 164                                 continue;
 165                         }
 166                         if (loop->refresh_rate <= refresh_rate
 167                             && (!best || loop->refresh_rate > best->refresh_rate))
 168                                 best = loop;
 169                         loop++;
 170                 }
 171                 if (best || !check_sync)
 172                         break;
 173                 check_sync = 0;
 174         }
 175
 176         if (best)
 177                 vbios_mode->enh_table = best;
 178
 179         hborder = (vbios_mode->enh_table->flags & HBorder) ? 8 : 0;
 180         vborder = (vbios_mode->enh_table->flags & VBorder) ? 8 : 0;
 181
 182         adjusted_mode->crtc_htotal = vbios_mode->enh_table->ht;
 183         adjusted_mode->crtc_hblank_start = vbios_mode->enh_table->hde + hborder;
 184         adjusted_mode->crtc_hblank_end = vbios_mode->enh_table->ht - hborder;
 185         adjusted_mode->crtc_hsync_start = vbios_mode->enh_table->hde + hborder +
 186                 vbios_mode->enh_table->hfp;
 187         adjusted_mode->crtc_hsync_end = (vbios_mode->enh_table->hde + hborder +
 188                                          vbios_mode->enh_table->hfp +
 189                                          vbios_mode->enh_table->hsync);
 190
 191         adjusted_mode->crtc_vtotal = vbios_mode->enh_table->vt;
 192         adjusted_mode->crtc_vblank_start = vbios_mode->enh_table->vde + vborder;
 193         adjusted_mode->crtc_vblank_end = vbios_mode->enh_table->vt - vborder;
 194         adjusted_mode->crtc_vsync_start = vbios_mode->enh_table->vde + vborder +
 195                 vbios_mode->enh_table->vfp;
 196         adjusted_mode->crtc_vsync_end = (vbios_mode->enh_table->vde + vborder +
 197                                          vbios_mode->enh_table->vfp +
 198                                          vbios_mode->enh_table->vsync);
 199
 200         return true;
 201 }
 202
 203 static void ast_set_vbios_color_reg(struct ast_private *ast,
 204                                     const struct drm_format_info *format,
 205                                     const struct ast_vbios_mode_info *vbios_mode)
 206 {
 207         u32 color_index;
 208
 209         switch (format->cpp[0]) {
 210         case 1:
 211                 color_index = VGAModeIndex - 1;
 212                 break;
 213         case 2:
 214                 color_index = HiCModeIndex;
 215                 break;
 216         case 3:
 217         case 4:
 218                 color_index = TrueCModeIndex;
 219                 break;
 220         default:
 221                 return;
 222         }
 223
 224         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8c, (u8)((color_index & 0x0f) << 4));
 225
 226         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
 227
 228         if (vbios_mode->enh_table->flags & NewModeInfo) {
 229                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
 230                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x92, format->cpp[0] * 8);
 231         }
 232 }
 233
 234 static void ast_set_vbios_mode_reg(struct ast_private *ast,
 235                                    const struct drm_display_mode *adjusted_mode,
 236                                    const struct ast_vbios_mode_info *vbios_mode)
 237 {
 238         u32 refresh_rate_index, mode_id;
 239
 240         refresh_rate_index = vbios_mode->enh_table->refresh_rate_index;
 241         mode_id = vbios_mode->enh_table->mode_id;
 242
 243         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8d, refresh_rate_index & 0xff);
 244         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x8e, mode_id & 0xff);
 245
 246         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0x00);
 247
 248         if (vbios_mode->enh_table->flags & NewModeInfo) {
 249                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x91, 0xa8);
 250                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x93, adjusted_mode->clock / 1000);
 251                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x94, adjusted_mode->crtc_hdisplay);
 252                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x95, adjusted_mode->crtc_hdisplay >> 8);
 253                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x96, adjusted_mode->crtc_vdisplay);
 254                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x97, adjusted_mode->crtc_vdisplay >> 8);
 255         }
 256 }
 257
 258 static void ast_set_std_reg(struct ast_private *ast,
 259                             struct drm_display_mode *mode,
 260                             struct ast_vbios_mode_info *vbios_mode)
 261 {
 262         const struct ast_vbios_stdtable *stdtable;
 263         u32 i;
 264         u8 jreg;
 265
 266         stdtable = vbios_mode->std_table;
 267
 268         jreg = stdtable->misc;
 269         ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
 270
 271         /* Set SEQ; except Screen Disable field */
 272         ast_set_index_reg(ast, AST_IO_SEQ_PORT, 0x00, 0x03);
 273         ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x01, 0xdf, stdtable->seq[0]);
 274         for (i = 1; i < 4; i++) {
 275                 jreg = stdtable->seq[i];
 276                 ast_set_index_reg(ast, AST_IO_SEQ_PORT, (i + 1), jreg);
 277         }
 278
 279         /* Set CRTC; except base address and offset */
 280         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
 281         for (i = 0; i < 12; i++)
 282                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
 283         for (i = 14; i < 19; i++)
 284                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
 285         for (i = 20; i < 25; i++)
 286                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, i, stdtable->crtc[i]);
 287
 288         /* set AR */
 289         jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
 290         for (i = 0; i < 20; i++) {
 291                 jreg = stdtable->ar[i];
 292                 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, (u8)i);
 293                 ast_io_write8(ast, AST_IO_AR_PORT_WRITE, jreg);
 294         }
 295         ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x14);
 296         ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x00);
 297
 298         jreg = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
 299         ast_io_write8(ast, AST_IO_AR_PORT_WRITE, 0x20);
 300
 301         /* Set GR */
 302         for (i = 0; i < 9; i++)
 303                 ast_set_index_reg(ast, AST_IO_GR_PORT, i, stdtable->gr[i]);
 304 }
 305
 306 static void ast_set_crtc_reg(struct ast_private *ast,
 307                              struct drm_display_mode *mode,
 308                              struct ast_vbios_mode_info *vbios_mode)
 309 {
 310         u8 jreg05 = 0, jreg07 = 0, jreg09 = 0, jregAC = 0, jregAD = 0, jregAE = 0;
 311         u16 temp, precache = 0;
 312
 313         if ((ast->chip == AST2500) &&
 314             (vbios_mode->enh_table->flags & AST2500PreCatchCRT))
 315                 precache = 40;
 316
 317         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x00);
 318
 319         temp = (mode->crtc_htotal >> 3) - 5;
 320         if (temp & 0x100)
 321                 jregAC |= 0x01; /* HT D[8] */
 322         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x00, 0x00, temp);
 323
 324         temp = (mode->crtc_hdisplay >> 3) - 1;
 325         if (temp & 0x100)
 326                 jregAC |= 0x04; /* HDE D[8] */
 327         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x01, 0x00, temp);
 328
 329         temp = (mode->crtc_hblank_start >> 3) - 1;
 330         if (temp & 0x100)
 331                 jregAC |= 0x10; /* HBS D[8] */
 332         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x02, 0x00, temp);
 333
 334         temp = ((mode->crtc_hblank_end >> 3) - 1) & 0x7f;
 335         if (temp & 0x20)
 336                 jreg05 |= 0x80;  /* HBE D[5] */
 337         if (temp & 0x40)
 338                 jregAD |= 0x01;  /* HBE D[5] */
 339         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x03, 0xE0, (temp & 0x1f));
 340
 341         temp = ((mode->crtc_hsync_start-precache) >> 3) - 1;
 342         if (temp & 0x100)
 343                 jregAC |= 0x40; /* HRS D[5] */
 344         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x04, 0x00, temp);
 345
 346         temp = (((mode->crtc_hsync_end-precache) >> 3) - 1) & 0x3f;
 347         if (temp & 0x20)
 348                 jregAD |= 0x04; /* HRE D[5] */
 349         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x05, 0x60, (u8)((temp & 0x1f) | jreg05));
 350
 351         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAC, 0x00, jregAC);
 352         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAD, 0x00, jregAD);
 353
 354         /* vert timings */
 355         temp = (mode->crtc_vtotal) - 2;
 356         if (temp & 0x100)
 357                 jreg07 |= 0x01;
 358         if (temp & 0x200)
 359                 jreg07 |= 0x20;
 360         if (temp & 0x400)
 361                 jregAE |= 0x01;
 362         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x06, 0x00, temp);
 363
 364         temp = (mode->crtc_vsync_start) - 1;
 365         if (temp & 0x100)
 366                 jreg07 |= 0x04;
 367         if (temp & 0x200)
 368                 jreg07 |= 0x80;
 369         if (temp & 0x400)
 370                 jregAE |= 0x08;
 371         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x10, 0x00, temp);
 372
 373         temp = (mode->crtc_vsync_end - 1) & 0x3f;
 374         if (temp & 0x10)
 375                 jregAE |= 0x20;
 376         if (temp & 0x20)
 377                 jregAE |= 0x40;
 378         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x70, temp & 0xf);
 379
 380         temp = mode->crtc_vdisplay - 1;
 381         if (temp & 0x100)
 382                 jreg07 |= 0x02;
 383         if (temp & 0x200)
 384                 jreg07 |= 0x40;
 385         if (temp & 0x400)
 386                 jregAE |= 0x02;
 387         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x12, 0x00, temp);
 388
 389         temp = mode->crtc_vblank_start - 1;
 390         if (temp & 0x100)
 391                 jreg07 |= 0x08;
 392         if (temp & 0x200)
 393                 jreg09 |= 0x20;
 394         if (temp & 0x400)
 395                 jregAE |= 0x04;
 396         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x15, 0x00, temp);
 397
 398         temp = mode->crtc_vblank_end - 1;
 399         if (temp & 0x100)
 400                 jregAE |= 0x10;
 401         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x16, 0x00, temp);
 402
 403         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x07, 0x00, jreg07);
 404         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x09, 0xdf, jreg09);
 405         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xAE, 0x00, (jregAE | 0x80));
 406
 407         if (precache)
 408                 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x80);
 409         else
 410                 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0x3f, 0x00);
 411
 412         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0x11, 0x7f, 0x80);
 413 }
 414
 415 static void ast_set_offset_reg(struct ast_private *ast,
 416                                struct drm_framebuffer *fb)
 417 {
 418         u16 offset;
 419
 420         offset = fb->pitches[0] >> 3;
 421         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x13, (offset & 0xff));
 422         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xb0, (offset >> 8) & 0x3f);
 423 }
 424
 425 static void ast_set_dclk_reg(struct ast_private *ast,
 426                              struct drm_display_mode *mode,
 427                              struct ast_vbios_mode_info *vbios_mode)
 428 {
 429         const struct ast_vbios_dclk_info *clk_info;
 430
 431         if (ast->chip == AST2500)
 432                 clk_info = &dclk_table_ast2500[vbios_mode->enh_table->dclk_index];
 433         else
 434                 clk_info = &dclk_table[vbios_mode->enh_table->dclk_index];
 435
 436         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc0, 0x00, clk_info->param1);
 437         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xc1, 0x00, clk_info->param2);
 438         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xbb, 0x0f,
 439                                (clk_info->param3 & 0xc0) |
 440                                ((clk_info->param3 & 0x3) << 4));
 441 }
 442
 443 static void ast_set_color_reg(struct ast_private *ast,
 444                               const struct drm_format_info *format)
 445 {
 446         u8 jregA0 = 0, jregA3 = 0, jregA8 = 0;
 447
 448         switch (format->cpp[0] * 8) {
 449         case 8:
 450                 jregA0 = 0x70;
 451                 jregA3 = 0x01;
 452                 jregA8 = 0x00;
 453                 break;
 454         case 15:
 455         case 16:
 456                 jregA0 = 0x70;
 457                 jregA3 = 0x04;
 458                 jregA8 = 0x02;
 459                 break;
 460         case 32:
 461                 jregA0 = 0x70;
 462                 jregA3 = 0x08;
 463                 jregA8 = 0x02;
 464                 break;
 465         }
 466
 467         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa0, 0x8f, jregA0);
 468         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa3, 0xf0, jregA3);
 469         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xa8, 0xfd, jregA8);
 470 }
 471
 472 static void ast_set_crtthd_reg(struct ast_private *ast)
 473 {
 474         /* Set Threshold */
 475         if (ast->chip == AST2600) {
 476                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0xe0);
 477                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0xa0);
 478         } else if (ast->chip == AST2300 || ast->chip == AST2400 ||
 479             ast->chip == AST2500) {
 480                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x78);
 481                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x60);
 482         } else if (ast->chip == AST2100 ||
 483                    ast->chip == AST1100 ||
 484                    ast->chip == AST2200 ||
 485                    ast->chip == AST2150) {
 486                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x3f);
 487                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x2f);
 488         } else {
 489                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa7, 0x2f);
 490                 ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa6, 0x1f);
 491         }
 492 }
 493
 494 static void ast_set_sync_reg(struct ast_private *ast,
 495                              struct drm_display_mode *mode,
 496                              struct ast_vbios_mode_info *vbios_mode)
 497 {
 498         u8 jreg;
 499
 500         jreg  = ast_io_read8(ast, AST_IO_MISC_PORT_READ);
 501         jreg &= ~0xC0;
 502         if (vbios_mode->enh_table->flags & NVSync)
 503                 jreg |= 0x80;
 504         if (vbios_mode->enh_table->flags & NHSync)
 505                 jreg |= 0x40;
 506         ast_io_write8(ast, AST_IO_MISC_PORT_WRITE, jreg);
 507 }
 508
 509 static void ast_set_start_address_crt1(struct ast_private *ast,
 510                                        unsigned int offset)
 511 {
 512         u32 addr;
 513
 514         addr = offset >> 2;
 515         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0d, (u8)(addr & 0xff));
 516         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x0c, (u8)((addr >> 8) & 0xff));
 517         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xaf, (u8)((addr >> 16) & 0xff));
 518
 519 }
 520
 521 static void ast_wait_for_vretrace(struct ast_private *ast)
 522 {
 523         unsigned long timeout = jiffies + HZ;
 524         u8 vgair1;
 525
 526         do {
 527                 vgair1 = ast_io_read8(ast, AST_IO_INPUT_STATUS1_READ);
 528         } while (!(vgair1 & AST_IO_VGAIR1_VREFRESH) && time_before(jiffies, timeout));
 529 }
 530
 531 /*
 532  * Primary plane
 533  */
 534
 535 static const uint32_t ast_primary_plane_formats[] = {
 536         DRM_FORMAT_XRGB8888,
 537         DRM_FORMAT_RGB565,
 538         DRM_FORMAT_C8,
 539 };
 540
 541 static int ast_primary_plane_helper_atomic_check(struct drm_plane *plane,
 542                                                  struct drm_atomic_state *state)
 543 {
 544         struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
 545                                                                                  plane);
 546         struct drm_crtc_state *crtc_state;
 547         struct ast_crtc_state *ast_crtc_state;
 548         int ret;
 549
 550         if (!new_plane_state->crtc)
 551                 return 0;
 552
 553         crtc_state = drm_atomic_get_new_crtc_state(state,
 554                                                    new_plane_state->crtc);
 555
 556         ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
 557                                                   DRM_PLANE_HELPER_NO_SCALING,
 558                                                   DRM_PLANE_HELPER_NO_SCALING,
 559                                                   false, true);
 560         if (ret)
 561                 return ret;
 562
 563         if (!new_plane_state->visible)
 564                 return 0;
 565
 566         ast_crtc_state = to_ast_crtc_state(crtc_state);
 567
 568         ast_crtc_state->format = new_plane_state->fb->format;
 569
 570         return 0;
 571 }
 572
 573 static void
 574 ast_primary_plane_helper_atomic_update(struct drm_plane *plane,
 575                                        struct drm_atomic_state *state)
 576 {
 577         struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
 578                                                                            plane);
 579         struct drm_device *dev = plane->dev;
 580         struct ast_private *ast = to_ast_private(dev);
 581         struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
 582                                                                            plane);
 583         struct drm_gem_vram_object *gbo;
 584         s64 gpu_addr;
 585         struct drm_framebuffer *fb = new_state->fb;
 586         struct drm_framebuffer *old_fb = old_state->fb;
 587
 588         if (!old_fb || (fb->format != old_fb->format)) {
 589                 struct drm_crtc_state *crtc_state = new_state->crtc->state;
 590                 struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
 591                 struct ast_vbios_mode_info *vbios_mode_info = &ast_crtc_state->vbios_mode_info;
 592
 593                 ast_set_color_reg(ast, fb->format);
 594                 ast_set_vbios_color_reg(ast, fb->format, vbios_mode_info);
 595         }
 596
 597         gbo = drm_gem_vram_of_gem(fb->obj[0]);
 598         gpu_addr = drm_gem_vram_offset(gbo);
 599         if (drm_WARN_ON_ONCE(dev, gpu_addr < 0))
 600                 return; /* Bug: we didn't pin the BO to VRAM in prepare_fb. */
 601
 602         ast_set_offset_reg(ast, fb);
 603         ast_set_start_address_crt1(ast, (u32)gpu_addr);
 604
 605         ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x00);
 606 }
 607
 608 static void
 609 ast_primary_plane_helper_atomic_disable(struct drm_plane *plane,
 610                                         struct drm_atomic_state *state)
 611 {
 612         struct ast_private *ast = to_ast_private(plane->dev);
 613
 614         ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT, 0x1, 0xdf, 0x20);
 615 }
 616
 617 static const struct drm_plane_helper_funcs ast_primary_plane_helper_funcs = {
 618         DRM_GEM_VRAM_PLANE_HELPER_FUNCS,
 619         .atomic_check = ast_primary_plane_helper_atomic_check,
 620         .atomic_update = ast_primary_plane_helper_atomic_update,
 621         .atomic_disable = ast_primary_plane_helper_atomic_disable,
 622 };
 623
 624 static const struct drm_plane_funcs ast_primary_plane_funcs = {
 625         .update_plane = drm_atomic_helper_update_plane,
 626         .disable_plane = drm_atomic_helper_disable_plane,
 627         .destroy = drm_plane_cleanup,
 628         .reset = drm_atomic_helper_plane_reset,
 629         .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
 630         .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
 631 };
 632
 633 static int ast_primary_plane_init(struct ast_private *ast)
 634 {
 635         struct drm_device *dev = &ast->base;
 636         struct drm_plane *primary_plane = &ast->primary_plane;
 637         int ret;
 638
 639         ret = drm_universal_plane_init(dev, primary_plane, 0x01,
 640                                        &ast_primary_plane_funcs,
 641                                        ast_primary_plane_formats,
 642                                        ARRAY_SIZE(ast_primary_plane_formats),
 643                                        NULL, DRM_PLANE_TYPE_PRIMARY, NULL);
 644         if (ret) {
 645                 drm_err(dev, "drm_universal_plane_init() failed: %d\n", ret);
 646                 return ret;
 647         }
 648         drm_plane_helper_add(primary_plane, &ast_primary_plane_helper_funcs);
 649
 650         return 0;
 651 }
 652
 653 /*
 654  * Cursor plane
 655  */
 656
 657 static void ast_update_cursor_image(u8 __iomem *dst, const u8 *src, int width, int height)
 658 {
 659         union {
 660                 u32 ul;
 661                 u8 b[4];
 662         } srcdata32[2], data32;
 663         union {
 664                 u16 us;
 665                 u8 b[2];
 666         } data16;
 667         u32 csum = 0;
 668         s32 alpha_dst_delta, last_alpha_dst_delta;
 669         u8 __iomem *dstxor;
 670         const u8 *srcxor;
 671         int i, j;
 672         u32 per_pixel_copy, two_pixel_copy;
 673
 674         alpha_dst_delta = AST_MAX_HWC_WIDTH << 1;
 675         last_alpha_dst_delta = alpha_dst_delta - (width << 1);
 676
 677         srcxor = src;
 678         dstxor = (u8 *)dst + last_alpha_dst_delta + (AST_MAX_HWC_HEIGHT - height) * alpha_dst_delta;
 679         per_pixel_copy = width & 1;
 680         two_pixel_copy = width >> 1;
 681
 682         for (j = 0; j < height; j++) {
 683                 for (i = 0; i < two_pixel_copy; i++) {
 684                         srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
 685                         srcdata32[1].ul = *((u32 *)(srcxor + 4)) & 0xf0f0f0f0;
 686                         data32.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
 687                         data32.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
 688                         data32.b[2] = srcdata32[1].b[1] | (srcdata32[1].b[0] >> 4);
 689                         data32.b[3] = srcdata32[1].b[3] | (srcdata32[1].b[2] >> 4);
 690
 691                         writel(data32.ul, dstxor);
 692                         csum += data32.ul;
 693
 694                         dstxor += 4;
 695                         srcxor += 8;
 696
 697                 }
 698
 699                 for (i = 0; i < per_pixel_copy; i++) {
 700                         srcdata32[0].ul = *((u32 *)srcxor) & 0xf0f0f0f0;
 701                         data16.b[0] = srcdata32[0].b[1] | (srcdata32[0].b[0] >> 4);
 702                         data16.b[1] = srcdata32[0].b[3] | (srcdata32[0].b[2] >> 4);
 703                         writew(data16.us, dstxor);
 704                         csum += (u32)data16.us;
 705
 706                         dstxor += 2;
 707                         srcxor += 4;
 708                 }
 709                 dstxor += last_alpha_dst_delta;
 710         }
 711
 712         /* write checksum + signature */
 713         dst += AST_HWC_SIZE;
 714         writel(csum, dst);
 715         writel(width, dst + AST_HWC_SIGNATURE_SizeX);
 716         writel(height, dst + AST_HWC_SIGNATURE_SizeY);
 717         writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTX);
 718         writel(0, dst + AST_HWC_SIGNATURE_HOTSPOTY);
 719 }
 720
 721 static void ast_set_cursor_base(struct ast_private *ast, u64 address)
 722 {
 723         u8 addr0 = (address >> 3) & 0xff;
 724         u8 addr1 = (address >> 11) & 0xff;
 725         u8 addr2 = (address >> 19) & 0xff;
 726
 727         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc8, addr0);
 728         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc9, addr1);
 729         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xca, addr2);
 730 }
 731
 732 static void ast_set_cursor_location(struct ast_private *ast, u16 x, u16 y,
 733                                     u8 x_offset, u8 y_offset)
 734 {
 735         u8 x0 = (x & 0x00ff);
 736         u8 x1 = (x & 0x0f00) >> 8;
 737         u8 y0 = (y & 0x00ff);
 738         u8 y1 = (y & 0x0700) >> 8;
 739
 740         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc2, x_offset);
 741         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc3, y_offset);
 742         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc4, x0);
 743         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc5, x1);
 744         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc6, y0);
 745         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xc7, y1);
 746 }
 747
 748 static void ast_set_cursor_enabled(struct ast_private *ast, bool enabled)
 749 {
 750         static const u8 mask = (u8)~(AST_IO_VGACRCB_HWC_16BPP |
 751                                      AST_IO_VGACRCB_HWC_ENABLED);
 752
 753         u8 vgacrcb = AST_IO_VGACRCB_HWC_16BPP;
 754
 755         if (enabled)
 756                 vgacrcb |= AST_IO_VGACRCB_HWC_ENABLED;
 757
 758         ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xcb, mask, vgacrcb);
 759 }
 760
 761 static const uint32_t ast_cursor_plane_formats[] = {
 762         DRM_FORMAT_ARGB8888,
 763 };
 764
 765 static int ast_cursor_plane_helper_atomic_check(struct drm_plane *plane,
 766                                                 struct drm_atomic_state *state)
 767 {
 768         struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
 769                                                                                  plane);
 770         struct drm_framebuffer *fb = new_plane_state->fb;
 771         struct drm_crtc_state *crtc_state;
 772         int ret;
 773
 774         if (!new_plane_state->crtc)
 775                 return 0;
 776
 777         crtc_state = drm_atomic_get_new_crtc_state(state,
 778                                                    new_plane_state->crtc);
 779
 780         ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
 781                                                   DRM_PLANE_HELPER_NO_SCALING,
 782                                                   DRM_PLANE_HELPER_NO_SCALING,
 783                                                   true, true);
 784         if (ret)
 785                 return ret;
 786
 787         if (!new_plane_state->visible)
 788                 return 0;
 789
 790         if (fb->width > AST_MAX_HWC_WIDTH || fb->height > AST_MAX_HWC_HEIGHT)
 791                 return -EINVAL;
 792
 793         return 0;
 794 }
 795
 796 static void
 797 ast_cursor_plane_helper_atomic_update(struct drm_plane *plane,
 798                                       struct drm_atomic_state *state)
 799 {
 800         struct ast_cursor_plane *ast_cursor_plane = to_ast_cursor_plane(plane);
 801         struct drm_plane_state *old_state = drm_atomic_get_old_plane_state(state,
 802                                                                            plane);
 803         struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
 804                                                                            plane);
 805         struct drm_shadow_plane_state *shadow_plane_state = to_drm_shadow_plane_state(new_state);
 806         struct drm_framebuffer *fb = new_state->fb;
 807         struct ast_private *ast = to_ast_private(plane->dev);
 808         struct iosys_map dst_map =
 809                 ast_cursor_plane->hwc[ast_cursor_plane->next_hwc_index].map;
 810         u64 dst_off =
 811                 ast_cursor_plane->hwc[ast_cursor_plane->next_hwc_index].off;
 812         struct iosys_map src_map = shadow_plane_state->data[0];
 813         unsigned int offset_x, offset_y;
 814         u16 x, y;
 815         u8 x_offset, y_offset;
 816         u8 __iomem *dst;
 817         u8 __iomem *sig;
 818         const u8 *src;
 819
 820         src = src_map.vaddr; /* TODO: Use mapping abstraction properly */
 821         dst = dst_map.vaddr_iomem; /* TODO: Use mapping abstraction properly */
 822         sig = dst + AST_HWC_SIZE; /* TODO: Use mapping abstraction properly */
 823
 824         /*
 825          * Do data transfer to HW cursor BO. If a new cursor image was installed,
 826          * point the scanout engine to dst_gbo's offset and page-flip the HWC buffers.
 827          */
 828
 829         ast_update_cursor_image(dst, src, fb->width, fb->height);
 830
 831         if (new_state->fb != old_state->fb) {
 832                 ast_set_cursor_base(ast, dst_off);
 833
 834                 ++ast_cursor_plane->next_hwc_index;
 835                 ast_cursor_plane->next_hwc_index %= ARRAY_SIZE(ast_cursor_plane->hwc);
 836         }
 837
 838         /*
 839          * Update location in HWC signature and registers.
 840          */
 841
 842         writel(new_state->crtc_x, sig + AST_HWC_SIGNATURE_X);
 843         writel(new_state->crtc_y, sig + AST_HWC_SIGNATURE_Y);
 844
 845         offset_x = AST_MAX_HWC_WIDTH - fb->width;
 846         offset_y = AST_MAX_HWC_HEIGHT - fb->height;
 847
 848         if (new_state->crtc_x < 0) {
 849                 x_offset = (-new_state->crtc_x) + offset_x;
 850                 x = 0;
 851         } else {
 852                 x_offset = offset_x;
 853                 x = new_state->crtc_x;
 854         }
 855         if (new_state->crtc_y < 0) {
 856                 y_offset = (-new_state->crtc_y) + offset_y;
 857                 y = 0;
 858         } else {
 859                 y_offset = offset_y;
 860                 y = new_state->crtc_y;
 861         }
 862
 863         ast_set_cursor_location(ast, x, y, x_offset, y_offset);
 864
 865         /* Dummy write to enable HWC and make the HW pick-up the changes. */
 866         ast_set_cursor_enabled(ast, true);
 867 }
 868
 869 static void
 870 ast_cursor_plane_helper_atomic_disable(struct drm_plane *plane,
 871                                        struct drm_atomic_state *state)
 872 {
 873         struct ast_private *ast = to_ast_private(plane->dev);
 874
 875         ast_set_cursor_enabled(ast, false);
 876 }
 877
 878 static const struct drm_plane_helper_funcs ast_cursor_plane_helper_funcs = {
 879         DRM_GEM_SHADOW_PLANE_HELPER_FUNCS,
 880         .atomic_check = ast_cursor_plane_helper_atomic_check,
 881         .atomic_update = ast_cursor_plane_helper_atomic_update,
 882         .atomic_disable = ast_cursor_plane_helper_atomic_disable,
 883 };
 884
 885 static void ast_cursor_plane_destroy(struct drm_plane *plane)
 886 {
 887         struct ast_cursor_plane *ast_cursor_plane = to_ast_cursor_plane(plane);
 888         size_t i;
 889         struct drm_gem_vram_object *gbo;
 890         struct iosys_map map;
 891
 892         for (i = 0; i < ARRAY_SIZE(ast_cursor_plane->hwc); ++i) {
 893                 gbo = ast_cursor_plane->hwc[i].gbo;
 894                 map = ast_cursor_plane->hwc[i].map;
 895                 drm_gem_vram_vunmap(gbo, &map);
 896                 drm_gem_vram_unpin(gbo);
 897                 drm_gem_vram_put(gbo);
 898         }
 899
 900         drm_plane_cleanup(plane);
 901 }
 902
 903 static const struct drm_plane_funcs ast_cursor_plane_funcs = {
 904         .update_plane = drm_atomic_helper_update_plane,
 905         .disable_plane = drm_atomic_helper_disable_plane,
 906         .destroy = ast_cursor_plane_destroy,
 907         DRM_GEM_SHADOW_PLANE_FUNCS,
 908 };
 909
 910 static int ast_cursor_plane_init(struct ast_private *ast)
 911 {
 912         struct drm_device *dev = &ast->base;
 913         struct ast_cursor_plane *ast_cursor_plane = &ast->cursor_plane;
 914         struct drm_plane *cursor_plane = &ast_cursor_plane->base;
 915         size_t size, i;
 916         struct drm_gem_vram_object *gbo;
 917         struct iosys_map map;
 918         int ret;
 919         s64 off;
 920
 921         /*
 922          * Allocate backing storage for cursors. The BOs are permanently
 923          * pinned to the top end of the VRAM.
 924          */
 925
 926         size = roundup(AST_HWC_SIZE + AST_HWC_SIGNATURE_SIZE, PAGE_SIZE);
 927
 928         for (i = 0; i < ARRAY_SIZE(ast_cursor_plane->hwc); ++i) {
 929                 gbo = drm_gem_vram_create(dev, size, 0);
 930                 if (IS_ERR(gbo)) {
 931                         ret = PTR_ERR(gbo);
 932                         goto err_hwc;
 933                 }
 934                 ret = drm_gem_vram_pin(gbo, DRM_GEM_VRAM_PL_FLAG_VRAM |
 935                                             DRM_GEM_VRAM_PL_FLAG_TOPDOWN);
 936                 if (ret)
 937                         goto err_drm_gem_vram_put;
 938                 ret = drm_gem_vram_vmap(gbo, &map);
 939                 if (ret)
 940                         goto err_drm_gem_vram_unpin;
 941                 off = drm_gem_vram_offset(gbo);
 942                 if (off < 0) {
 943                         ret = off;
 944                         goto err_drm_gem_vram_vunmap;
 945                 }
 946                 ast_cursor_plane->hwc[i].gbo = gbo;
 947                 ast_cursor_plane->hwc[i].map = map;
 948                 ast_cursor_plane->hwc[i].off = off;
 949         }
 950
 951         /*
 952          * Create the cursor plane. The plane's destroy callback will release
 953          * the backing storages' BO memory.
 954          */
 955
 956         ret = drm_universal_plane_init(dev, cursor_plane, 0x01,
 957                                        &ast_cursor_plane_funcs,
 958                                        ast_cursor_plane_formats,
 959                                        ARRAY_SIZE(ast_cursor_plane_formats),
 960                                        NULL, DRM_PLANE_TYPE_CURSOR, NULL);
 961         if (ret) {
 962                 drm_err(dev, "drm_universal_plane failed(): %d\n", ret);
 963                 goto err_hwc;
 964         }
 965         drm_plane_helper_add(cursor_plane, &ast_cursor_plane_helper_funcs);
 966
 967         return 0;
 968
 969 err_hwc:
 970         while (i) {
 971                 --i;
 972                 gbo = ast_cursor_plane->hwc[i].gbo;
 973                 map = ast_cursor_plane->hwc[i].map;
 974 err_drm_gem_vram_vunmap:
 975                 drm_gem_vram_vunmap(gbo, &map);
 976 err_drm_gem_vram_unpin:
 977                 drm_gem_vram_unpin(gbo);
 978 err_drm_gem_vram_put:
 979                 drm_gem_vram_put(gbo);
 980         }
 981         return ret;
 982 }
 983
 984 /*
 985  * CRTC
 986  */
 987
 988 static void ast_crtc_dpms(struct drm_crtc *crtc, int mode)
 989 {
 990         struct ast_private *ast = to_ast_private(crtc->dev);
 991         u8 ch = AST_DPMS_VSYNC_OFF | AST_DPMS_HSYNC_OFF;
 992
 993         /* TODO: Maybe control display signal generation with
 994          *       Sync Enable (bit CR17.7).
 995          */
 996         switch (mode) {
 997         case DRM_MODE_DPMS_ON:
 998                 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT,  0x01, 0xdf, 0);
 999                 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xfc, 0);
1000                 if (ast->tx_chip_type == AST_TX_DP501)
1001                         ast_set_dp501_video_output(crtc->dev, 1);
1002
1003                 if (ast->tx_chip_type == AST_TX_ASTDP) {
1004                         ast_dp_power_on_off(crtc->dev, AST_DP_POWER_ON);
1005                         ast_wait_for_vretrace(ast);
1006                         ast_dp_set_on_off(crtc->dev, 1);
1007                 }
1008
1009                 ast_crtc_load_lut(ast, crtc);
1010                 break;
1011         case DRM_MODE_DPMS_STANDBY:
1012         case DRM_MODE_DPMS_SUSPEND:
1013         case DRM_MODE_DPMS_OFF:
1014                 ch = mode;
1015                 if (ast->tx_chip_type == AST_TX_DP501)
1016                         ast_set_dp501_video_output(crtc->dev, 0);
1017                 break;
1018
1019                 if (ast->tx_chip_type == AST_TX_ASTDP) {
1020                         ast_dp_set_on_off(crtc->dev, 0);
1021                         ast_dp_power_on_off(crtc->dev, AST_DP_POWER_OFF);
1022                 }
1023
1024                 ast_set_index_reg_mask(ast, AST_IO_SEQ_PORT,  0x01, 0xdf, 0x20);
1025                 ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xb6, 0xfc, ch);
1026         }
1027 }
1028
1029 static enum drm_mode_status
1030 ast_crtc_helper_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode)
1031 {
1032         struct ast_private *ast = to_ast_private(crtc->dev);
1033         enum drm_mode_status status;
1034         uint32_t jtemp;
1035
1036         if (ast->support_wide_screen) {
1037                 if ((mode->hdisplay == 1680) && (mode->vdisplay == 1050))
1038                         return MODE_OK;
1039                 if ((mode->hdisplay == 1280) && (mode->vdisplay == 800))
1040                         return MODE_OK;
1041                 if ((mode->hdisplay == 1440) && (mode->vdisplay == 900))
1042                         return MODE_OK;
1043                 if ((mode->hdisplay == 1360) && (mode->vdisplay == 768))
1044                         return MODE_OK;
1045                 if ((mode->hdisplay == 1600) && (mode->vdisplay == 900))
1046                         return MODE_OK;
1047
1048                 if ((ast->chip == AST2100) || (ast->chip == AST2200) ||
1049                     (ast->chip == AST2300) || (ast->chip == AST2400) ||
1050                     (ast->chip == AST2500) || (ast->chip == AST2600)) {
1051                         if ((mode->hdisplay == 1920) && (mode->vdisplay == 1080))
1052                                 return MODE_OK;
1053
1054                         if ((mode->hdisplay == 1920) && (mode->vdisplay == 1200)) {
1055                                 jtemp = ast_get_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xd1, 0xff);
1056                                 if (jtemp & 0x01)
1057                                         return MODE_NOMODE;
1058                                 else
1059                                         return MODE_OK;
1060                         }
1061                 }
1062         }
1063
1064         status = MODE_NOMODE;
1065
1066         switch (mode->hdisplay) {
1067         case 640:
1068                 if (mode->vdisplay == 480)
1069                         status = MODE_OK;
1070                 break;
1071         case 800:
1072                 if (mode->vdisplay == 600)
1073                         status = MODE_OK;
1074                 break;
1075         case 1024:
1076                 if (mode->vdisplay == 768)
1077                         status = MODE_OK;
1078                 break;
1079         case 1280:
1080                 if (mode->vdisplay == 1024)
1081                         status = MODE_OK;
1082                 break;
1083         case 1600:
1084                 if (mode->vdisplay == 1200)
1085                         status = MODE_OK;
1086                 break;
1087         default:
1088                 break;
1089         }
1090
1091         return status;
1092 }
1093
1094 static int ast_crtc_helper_atomic_check(struct drm_crtc *crtc,
1095                                         struct drm_atomic_state *state)
1096 {
1097         struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
1098                                                                           crtc);
1099         struct drm_device *dev = crtc->dev;
1100         struct ast_crtc_state *ast_state;
1101         const struct drm_format_info *format;
1102         bool succ;
1103
1104         if (!crtc_state->enable)
1105                 return 0; /* no mode checks if CRTC is being disabled */
1106
1107         ast_state = to_ast_crtc_state(crtc_state);
1108
1109         format = ast_state->format;
1110         if (drm_WARN_ON_ONCE(dev, !format))
1111                 return -EINVAL; /* BUG: We didn't set format in primary check(). */
1112
1113         succ = ast_get_vbios_mode_info(format, &crtc_state->mode,
1114                                        &crtc_state->adjusted_mode,
1115                                        &ast_state->vbios_mode_info);
1116         if (!succ)
1117                 return -EINVAL;
1118
1119         return 0;
1120 }
1121
1122 static void ast_crtc_helper_atomic_begin(struct drm_crtc *crtc, struct drm_atomic_state *state)
1123 {
1124         struct drm_device *dev = crtc->dev;
1125         struct ast_private *ast = to_ast_private(dev);
1126
1127         /*
1128          * Concurrent operations could possibly trigger a call to
1129          * drm_connector_helper_funcs.get_modes by trying to read the
1130          * display modes. Protect access to I/O registers by acquiring
1131          * the I/O-register lock. Released in atomic_flush().
1132          */
1133         mutex_lock(&ast->ioregs_lock);
1134 }
1135
1136 static void
1137 ast_crtc_helper_atomic_flush(struct drm_crtc *crtc,
1138                              struct drm_atomic_state *state)
1139 {
1140         struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
1141                                                                           crtc);
1142         struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
1143                                                                               crtc);
1144         struct drm_device *dev = crtc->dev;
1145         struct ast_private *ast = to_ast_private(dev);
1146         struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
1147         struct ast_crtc_state *old_ast_crtc_state = to_ast_crtc_state(old_crtc_state);
1148         struct ast_vbios_mode_info *vbios_mode_info = &ast_crtc_state->vbios_mode_info;
1149
1150         /*
1151          * The gamma LUT has to be reloaded after changing the primary
1152          * plane's color format.
1153          */
1154         if (old_ast_crtc_state->format != ast_crtc_state->format)
1155                 ast_crtc_load_lut(ast, crtc);
1156
1157         //Set Aspeed Display-Port
1158         if (ast->tx_chip_type == AST_TX_ASTDP)
1159                 ast_dp_set_mode(crtc, vbios_mode_info);
1160
1161         mutex_unlock(&ast->ioregs_lock);
1162 }
1163
1164 static void
1165 ast_crtc_helper_atomic_enable(struct drm_crtc *crtc,
1166                               struct drm_atomic_state *state)
1167 {
1168         struct drm_device *dev = crtc->dev;
1169         struct ast_private *ast = to_ast_private(dev);
1170         struct drm_crtc_state *crtc_state = crtc->state;
1171         struct ast_crtc_state *ast_crtc_state = to_ast_crtc_state(crtc_state);
1172         struct ast_vbios_mode_info *vbios_mode_info =
1173                 &ast_crtc_state->vbios_mode_info;
1174         struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode;
1175
1176         ast_set_vbios_mode_reg(ast, adjusted_mode, vbios_mode_info);
1177         ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0xa1, 0x06);
1178         ast_set_std_reg(ast, adjusted_mode, vbios_mode_info);
1179         ast_set_crtc_reg(ast, adjusted_mode, vbios_mode_info);
1180         ast_set_dclk_reg(ast, adjusted_mode, vbios_mode_info);
1181         ast_set_crtthd_reg(ast);
1182         ast_set_sync_reg(ast, adjusted_mode, vbios_mode_info);
1183
1184         ast_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
1185 }
1186
1187 static void
1188 ast_crtc_helper_atomic_disable(struct drm_crtc *crtc,
1189                                struct drm_atomic_state *state)
1190 {
1191         struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state,
1192                                                                               crtc);
1193         struct drm_device *dev = crtc->dev;
1194         struct ast_private *ast = to_ast_private(dev);
1195
1196         ast_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
1197
1198         /*
1199          * HW cursors require the underlying primary plane and CRTC to
1200          * display a valid mode and image. This is not the case during
1201          * full modeset operations. So we temporarily disable any active
1202          * plane, including the HW cursor. Each plane's atomic_update()
1203          * helper will re-enable it if necessary.
1204          *
1205          * We only do this during *full* modesets. It does not affect
1206          * simple pageflips on the planes.
1207          */
1208         drm_atomic_helper_disable_planes_on_crtc(old_crtc_state, false);
1209
1210         /*
1211          * Ensure that no scanout takes place before reprogramming mode
1212          * and format registers.
1213          */
1214         ast_wait_for_vretrace(ast);
1215 }
1216
1217 static const struct drm_crtc_helper_funcs ast_crtc_helper_funcs = {
1218         .mode_valid = ast_crtc_helper_mode_valid,
1219         .atomic_check = ast_crtc_helper_atomic_check,
1220         .atomic_begin = ast_crtc_helper_atomic_begin,
1221         .atomic_flush = ast_crtc_helper_atomic_flush,
1222         .atomic_enable = ast_crtc_helper_atomic_enable,
1223         .atomic_disable = ast_crtc_helper_atomic_disable,
1224 };
1225
1226 static void ast_crtc_reset(struct drm_crtc *crtc)
1227 {
1228         struct ast_crtc_state *ast_state =
1229                 kzalloc(sizeof(*ast_state), GFP_KERNEL);
1230
1231         if (crtc->state)
1232                 crtc->funcs->atomic_destroy_state(crtc, crtc->state);
1233
1234         if (ast_state)
1235                 __drm_atomic_helper_crtc_reset(crtc, &ast_state->base);
1236         else
1237                 __drm_atomic_helper_crtc_reset(crtc, NULL);
1238 }
1239
1240 static struct drm_crtc_state *
1241 ast_crtc_atomic_duplicate_state(struct drm_crtc *crtc)
1242 {
1243         struct ast_crtc_state *new_ast_state, *ast_state;
1244         struct drm_device *dev = crtc->dev;
1245
1246         if (drm_WARN_ON(dev, !crtc->state))
1247                 return NULL;
1248
1249         new_ast_state = kmalloc(sizeof(*new_ast_state), GFP_KERNEL);
1250         if (!new_ast_state)
1251                 return NULL;
1252         __drm_atomic_helper_crtc_duplicate_state(crtc, &new_ast_state->base);
1253
1254         ast_state = to_ast_crtc_state(crtc->state);
1255
1256         new_ast_state->format = ast_state->format;
1257         memcpy(&new_ast_state->vbios_mode_info, &ast_state->vbios_mode_info,
1258                sizeof(new_ast_state->vbios_mode_info));
1259
1260         return &new_ast_state->base;
1261 }
1262
1263 static void ast_crtc_atomic_destroy_state(struct drm_crtc *crtc,
1264                                           struct drm_crtc_state *state)
1265 {
1266         struct ast_crtc_state *ast_state = to_ast_crtc_state(state);
1267
1268         __drm_atomic_helper_crtc_destroy_state(&ast_state->base);
1269         kfree(ast_state);
1270 }
1271
1272 static const struct drm_crtc_funcs ast_crtc_funcs = {
1273         .reset = ast_crtc_reset,
1274         .destroy = drm_crtc_cleanup,
1275         .set_config = drm_atomic_helper_set_config,
1276         .page_flip = drm_atomic_helper_page_flip,
1277         .atomic_duplicate_state = ast_crtc_atomic_duplicate_state,
1278         .atomic_destroy_state = ast_crtc_atomic_destroy_state,
1279 };
1280
1281 static int ast_crtc_init(struct drm_device *dev)
1282 {
1283         struct ast_private *ast = to_ast_private(dev);
1284         struct drm_crtc *crtc = &ast->crtc;
1285         int ret;
1286
1287         ret = drm_crtc_init_with_planes(dev, crtc, &ast->primary_plane,
1288                                         &ast->cursor_plane.base, &ast_crtc_funcs,
1289                                         NULL);
1290         if (ret)
1291                 return ret;
1292
1293         drm_mode_crtc_set_gamma_size(crtc, 256);
1294         drm_crtc_helper_add(crtc, &ast_crtc_helper_funcs);
1295
1296         return 0;
1297 }
1298
1299 /*
1300  * VGA Connector
1301  */
1302
1303 static int ast_vga_connector_helper_get_modes(struct drm_connector *connector)
1304 {
1305         struct ast_vga_connector *ast_vga_connector = to_ast_vga_connector(connector);
1306         struct drm_device *dev = connector->dev;
1307         struct ast_private *ast = to_ast_private(dev);
1308         struct edid *edid;
1309         int count;
1310
1311         if (!ast_vga_connector->i2c)
1312                 goto err_drm_connector_update_edid_property;
1313
1314         /*
1315          * Protect access to I/O registers from concurrent modesetting
1316          * by acquiring the I/O-register lock.
1317          */
1318         mutex_lock(&ast->ioregs_lock);
1319
1320         edid = drm_get_edid(connector, &ast_vga_connector->i2c->adapter);
1321         if (!edid)
1322                 goto err_mutex_unlock;
1323
1324         mutex_unlock(&ast->ioregs_lock);
1325
1326         count = drm_add_edid_modes(connector, edid);
1327         kfree(edid);
1328
1329         return count;
1330
1331 err_mutex_unlock:
1332         mutex_unlock(&ast->ioregs_lock);
1333 err_drm_connector_update_edid_property:
1334         drm_connector_update_edid_property(connector, NULL);
1335         return 0;
1336 }
1337
1338 static const struct drm_connector_helper_funcs ast_vga_connector_helper_funcs = {
1339         .get_modes = ast_vga_connector_helper_get_modes,
1340 };
1341
1342 static const struct drm_connector_funcs ast_vga_connector_funcs = {
1343         .reset = drm_atomic_helper_connector_reset,
1344         .fill_modes = drm_helper_probe_single_connector_modes,
1345         .destroy = drm_connector_cleanup,
1346         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1347         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1348 };
1349
1350 static int ast_vga_connector_init(struct drm_device *dev,
1351                                   struct ast_vga_connector *ast_vga_connector)
1352 {
1353         struct drm_connector *connector = &ast_vga_connector->base;
1354         int ret;
1355
1356         ast_vga_connector->i2c = ast_i2c_create(dev);
1357         if (!ast_vga_connector->i2c)
1358                 drm_err(dev, "failed to add ddc bus for connector\n");
1359
1360         if (ast_vga_connector->i2c)
1361                 ret = drm_connector_init_with_ddc(dev, connector, &ast_vga_connector_funcs,
1362                                                   DRM_MODE_CONNECTOR_VGA,
1363                                                   &ast_vga_connector->i2c->adapter);
1364         else
1365                 ret = drm_connector_init(dev, connector, &ast_vga_connector_funcs,
1366                                          DRM_MODE_CONNECTOR_VGA);
1367         if (ret)
1368                 return ret;
1369
1370         drm_connector_helper_add(connector, &ast_vga_connector_helper_funcs);
1371
1372         connector->interlace_allowed = 0;
1373         connector->doublescan_allowed = 0;
1374
1375         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1376
1377         return 0;
1378 }
1379
1380 static int ast_vga_output_init(struct ast_private *ast)
1381 {
1382         struct drm_device *dev = &ast->base;
1383         struct drm_crtc *crtc = &ast->crtc;
1384         struct drm_encoder *encoder = &ast->output.vga.encoder;
1385         struct ast_vga_connector *ast_vga_connector = &ast->output.vga.vga_connector;
1386         struct drm_connector *connector = &ast_vga_connector->base;
1387         int ret;
1388
1389         ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_DAC);
1390         if (ret)
1391                 return ret;
1392         encoder->possible_crtcs = drm_crtc_mask(crtc);
1393
1394         ret = ast_vga_connector_init(dev, ast_vga_connector);
1395         if (ret)
1396                 return ret;
1397
1398         ret = drm_connector_attach_encoder(connector, encoder);
1399         if (ret)
1400                 return ret;
1401
1402         return 0;
1403 }
1404
1405 /*
1406  * SIL164 Connector
1407  */
1408
1409 static int ast_sil164_connector_helper_get_modes(struct drm_connector *connector)
1410 {
1411         struct ast_sil164_connector *ast_sil164_connector = to_ast_sil164_connector(connector);
1412         struct drm_device *dev = connector->dev;
1413         struct ast_private *ast = to_ast_private(dev);
1414         struct edid *edid;
1415         int count;
1416
1417         if (!ast_sil164_connector->i2c)
1418                 goto err_drm_connector_update_edid_property;
1419
1420         /*
1421          * Protect access to I/O registers from concurrent modesetting
1422          * by acquiring the I/O-register lock.
1423          */
1424         mutex_lock(&ast->ioregs_lock);
1425
1426         edid = drm_get_edid(connector, &ast_sil164_connector->i2c->adapter);
1427         if (!edid)
1428                 goto err_mutex_unlock;
1429
1430         mutex_unlock(&ast->ioregs_lock);
1431
1432         count = drm_add_edid_modes(connector, edid);
1433         kfree(edid);
1434
1435         return count;
1436
1437 err_mutex_unlock:
1438         mutex_unlock(&ast->ioregs_lock);
1439 err_drm_connector_update_edid_property:
1440         drm_connector_update_edid_property(connector, NULL);
1441         return 0;
1442 }
1443
1444 static const struct drm_connector_helper_funcs ast_sil164_connector_helper_funcs = {
1445         .get_modes = ast_sil164_connector_helper_get_modes,
1446 };
1447
1448 static const struct drm_connector_funcs ast_sil164_connector_funcs = {
1449         .reset = drm_atomic_helper_connector_reset,
1450         .fill_modes = drm_helper_probe_single_connector_modes,
1451         .destroy = drm_connector_cleanup,
1452         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1453         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1454 };
1455
1456 static int ast_sil164_connector_init(struct drm_device *dev,
1457                                      struct ast_sil164_connector *ast_sil164_connector)
1458 {
1459         struct drm_connector *connector = &ast_sil164_connector->base;
1460         int ret;
1461
1462         ast_sil164_connector->i2c = ast_i2c_create(dev);
1463         if (!ast_sil164_connector->i2c)
1464                 drm_err(dev, "failed to add ddc bus for connector\n");
1465
1466         if (ast_sil164_connector->i2c)
1467                 ret = drm_connector_init_with_ddc(dev, connector, &ast_sil164_connector_funcs,
1468                                                   DRM_MODE_CONNECTOR_DVII,
1469                                                   &ast_sil164_connector->i2c->adapter);
1470         else
1471                 ret = drm_connector_init(dev, connector, &ast_sil164_connector_funcs,
1472                                          DRM_MODE_CONNECTOR_DVII);
1473         if (ret)
1474                 return ret;
1475
1476         drm_connector_helper_add(connector, &ast_sil164_connector_helper_funcs);
1477
1478         connector->interlace_allowed = 0;
1479         connector->doublescan_allowed = 0;
1480
1481         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1482
1483         return 0;
1484 }
1485
1486 static int ast_sil164_output_init(struct ast_private *ast)
1487 {
1488         struct drm_device *dev = &ast->base;
1489         struct drm_crtc *crtc = &ast->crtc;
1490         struct drm_encoder *encoder = &ast->output.sil164.encoder;
1491         struct ast_sil164_connector *ast_sil164_connector = &ast->output.sil164.sil164_connector;
1492         struct drm_connector *connector = &ast_sil164_connector->base;
1493         int ret;
1494
1495         ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);
1496         if (ret)
1497                 return ret;
1498         encoder->possible_crtcs = drm_crtc_mask(crtc);
1499
1500         ret = ast_sil164_connector_init(dev, ast_sil164_connector);
1501         if (ret)
1502                 return ret;
1503
1504         ret = drm_connector_attach_encoder(connector, encoder);
1505         if (ret)
1506                 return ret;
1507
1508         return 0;
1509 }
1510
1511 /*
1512  * DP501 Connector
1513  */
1514
1515 static int ast_dp501_connector_helper_get_modes(struct drm_connector *connector)
1516 {
1517         void *edid;
1518         bool succ;
1519         int count;
1520
1521         edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
1522         if (!edid)
1523                 goto err_drm_connector_update_edid_property;
1524
1525         succ = ast_dp501_read_edid(connector->dev, edid);
1526         if (!succ)
1527                 goto err_kfree;
1528
1529         drm_connector_update_edid_property(connector, edid);
1530         count = drm_add_edid_modes(connector, edid);
1531         kfree(edid);
1532
1533         return count;
1534
1535 err_kfree:
1536         kfree(edid);
1537 err_drm_connector_update_edid_property:
1538         drm_connector_update_edid_property(connector, NULL);
1539         return 0;
1540 }
1541
1542 static const struct drm_connector_helper_funcs ast_dp501_connector_helper_funcs = {
1543         .get_modes = ast_dp501_connector_helper_get_modes,
1544 };
1545
1546 static const struct drm_connector_funcs ast_dp501_connector_funcs = {
1547         .reset = drm_atomic_helper_connector_reset,
1548         .fill_modes = drm_helper_probe_single_connector_modes,
1549         .destroy = drm_connector_cleanup,
1550         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1551         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1552 };
1553
1554 static int ast_dp501_connector_init(struct drm_device *dev, struct drm_connector *connector)
1555 {
1556         int ret;
1557
1558         ret = drm_connector_init(dev, connector, &ast_dp501_connector_funcs,
1559                                  DRM_MODE_CONNECTOR_DisplayPort);
1560         if (ret)
1561                 return ret;
1562
1563         drm_connector_helper_add(connector, &ast_dp501_connector_helper_funcs);
1564
1565         connector->interlace_allowed = 0;
1566         connector->doublescan_allowed = 0;
1567
1568         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1569
1570         return 0;
1571 }
1572
1573 static int ast_dp501_output_init(struct ast_private *ast)
1574 {
1575         struct drm_device *dev = &ast->base;
1576         struct drm_crtc *crtc = &ast->crtc;
1577         struct drm_encoder *encoder = &ast->output.dp501.encoder;
1578         struct drm_connector *connector = &ast->output.dp501.connector;
1579         int ret;
1580
1581         ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);
1582         if (ret)
1583                 return ret;
1584         encoder->possible_crtcs = drm_crtc_mask(crtc);
1585
1586         ret = ast_dp501_connector_init(dev, connector);
1587         if (ret)
1588                 return ret;
1589
1590         ret = drm_connector_attach_encoder(connector, encoder);
1591         if (ret)
1592                 return ret;
1593
1594         return 0;
1595 }
1596
1597 /*
1598  * ASPEED Display-Port Connector
1599  */
1600
1601 static int ast_astdp_connector_helper_get_modes(struct drm_connector *connector)
1602 {
1603         void *edid;
1604
1605         int succ;
1606         int count;
1607
1608         edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
1609         if (!edid)
1610                 goto err_drm_connector_update_edid_property;
1611
1612         succ = ast_astdp_read_edid(connector->dev, edid);
1613         if (succ < 0)
1614                 goto err_kfree;
1615
1616         drm_connector_update_edid_property(connector, edid);
1617         count = drm_add_edid_modes(connector, edid);
1618         kfree(edid);
1619
1620         return count;
1621
1622 err_kfree:
1623         kfree(edid);
1624 err_drm_connector_update_edid_property:
1625         drm_connector_update_edid_property(connector, NULL);
1626         return 0;
1627 }
1628
1629 static const struct drm_connector_helper_funcs ast_astdp_connector_helper_funcs = {
1630         .get_modes = ast_astdp_connector_helper_get_modes,
1631 };
1632
1633 static const struct drm_connector_funcs ast_astdp_connector_funcs = {
1634         .reset = drm_atomic_helper_connector_reset,
1635         .fill_modes = drm_helper_probe_single_connector_modes,
1636         .destroy = drm_connector_cleanup,
1637         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
1638         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
1639 };
1640
1641 static int ast_astdp_connector_init(struct drm_device *dev, struct drm_connector *connector)
1642 {
1643         int ret;
1644
1645         ret = drm_connector_init(dev, connector, &ast_astdp_connector_funcs,
1646                                  DRM_MODE_CONNECTOR_DisplayPort);
1647         if (ret)
1648                 return ret;
1649
1650         drm_connector_helper_add(connector, &ast_astdp_connector_helper_funcs);
1651
1652         connector->interlace_allowed = 0;
1653         connector->doublescan_allowed = 0;
1654
1655         connector->polled = DRM_CONNECTOR_POLL_CONNECT;
1656
1657         return 0;
1658 }
1659
1660 static int ast_astdp_output_init(struct ast_private *ast)
1661 {
1662         struct drm_device *dev = &ast->base;
1663         struct drm_crtc *crtc = &ast->crtc;
1664         struct drm_encoder *encoder = &ast->output.astdp.encoder;
1665         struct drm_connector *connector = &ast->output.astdp.connector;
1666         int ret;
1667
1668         ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_TMDS);
1669         if (ret)
1670                 return ret;
1671         encoder->possible_crtcs = drm_crtc_mask(crtc);
1672
1673         ret = ast_astdp_connector_init(dev, connector);
1674         if (ret)
1675                 return ret;
1676
1677         ret = drm_connector_attach_encoder(connector, encoder);
1678         if (ret)
1679                 return ret;
1680
1681         return 0;
1682 }
1683
1684 /*
1685  * Mode config
1686  */
1687
1688 static const struct drm_mode_config_helper_funcs ast_mode_config_helper_funcs = {
1689         .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
1690 };
1691
1692 static const struct drm_mode_config_funcs ast_mode_config_funcs = {
1693         .fb_create = drm_gem_fb_create,
1694         .mode_valid = drm_vram_helper_mode_valid,
1695         .atomic_check = drm_atomic_helper_check,
1696         .atomic_commit = drm_atomic_helper_commit,
1697 };
1698
1699 int ast_mode_config_init(struct ast_private *ast)
1700 {
1701         struct drm_device *dev = &ast->base;
1702         struct pci_dev *pdev = to_pci_dev(dev->dev);
1703         int ret;
1704
1705         ret = drmm_mode_config_init(dev);
1706         if (ret)
1707                 return ret;
1708
1709         dev->mode_config.funcs = &ast_mode_config_funcs;
1710         dev->mode_config.min_width = 0;
1711         dev->mode_config.min_height = 0;
1712         dev->mode_config.preferred_depth = 24;
1713         dev->mode_config.prefer_shadow = 1;
1714         dev->mode_config.fb_base = pci_resource_start(pdev, 0);
1715
1716         if (ast->chip == AST2100 ||
1717             ast->chip == AST2200 ||
1718             ast->chip == AST2300 ||
1719             ast->chip == AST2400 ||
1720             ast->chip == AST2500 ||
1721             ast->chip == AST2600) {
1722                 dev->mode_config.max_width = 1920;
1723                 dev->mode_config.max_height = 2048;
1724         } else {
1725                 dev->mode_config.max_width = 1600;
1726                 dev->mode_config.max_height = 1200;
1727         }
1728
1729         dev->mode_config.helper_private = &ast_mode_config_helper_funcs;
1730
1731
1732         ret = ast_primary_plane_init(ast);
1733         if (ret)
1734                 return ret;
1735
1736         ret = ast_cursor_plane_init(ast);
1737         if (ret)
1738                 return ret;
1739
1740         ast_crtc_init(dev);
1741
1742         switch (ast->tx_chip_type) {
1743         case AST_TX_NONE:
1744                 ret = ast_vga_output_init(ast);
1745                 break;
1746         case AST_TX_SIL164:
1747                 ret = ast_sil164_output_init(ast);
1748                 break;
1749         case AST_TX_DP501:
1750                 ret = ast_dp501_output_init(ast);
1751                 break;
1752         case AST_TX_ASTDP:
1753                 ret = ast_astdp_output_init(ast);
1754                 break;
1755         }
1756         if (ret)
1757                 return ret;
1758
1759         drm_mode_config_reset(dev);
1760
1761         return 0;
1762 }