kernel/drivers/video/fbdev/omap2/dss/dss_features.c

   1 /*
   2  * linux/drivers/video/omap2/dss/dss_features.c
   3  *
   4  * Copyright (C) 2010 Texas Instruments
   5  * Author: Archit Taneja <archit@ti.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <linux/kernel.h>
  21 #include <linux/module.h>
  22 #include <linux/types.h>
  23 #include <linux/err.h>
  24 #include <linux/slab.h>
  25
  26 #include <video/omapdss.h>
  27
  28 #include "dss.h"
  29 #include "dss_features.h"
  30
  31 /* Defines a generic omap register field */
  32 struct dss_reg_field {
  33         u8 start, end;
  34 };
  35
  36 struct dss_param_range {
  37         int min, max;
  38 };
  39
  40 struct omap_dss_features {
  41         const struct dss_reg_field *reg_fields;
  42         const int num_reg_fields;
  43
  44         const enum dss_feat_id *features;
  45         const int num_features;
  46
  47         const int num_mgrs;
  48         const int num_ovls;
  49         const int num_wbs;
  50         const enum omap_display_type *supported_displays;
  51         const enum omap_dss_output_id *supported_outputs;
  52         const enum omap_color_mode *supported_color_modes;
  53         const enum omap_overlay_caps *overlay_caps;
  54         const char * const *clksrc_names;
  55         const struct dss_param_range *dss_params;
  56
  57         const enum omap_dss_rotation_type supported_rotation_types;
  58
  59         const u32 buffer_size_unit;
  60         const u32 burst_size_unit;
  61 };
  62
  63 /* This struct is assigned to one of the below during initialization */
  64 static const struct omap_dss_features *omap_current_dss_features;
  65
  66 static const struct dss_reg_field omap2_dss_reg_fields[] = {
  67         [FEAT_REG_FIRHINC]                      = { 11, 0 },
  68         [FEAT_REG_FIRVINC]                      = { 27, 16 },
  69         [FEAT_REG_FIFOLOWTHRESHOLD]             = { 8, 0 },
  70         [FEAT_REG_FIFOHIGHTHRESHOLD]            = { 24, 16 },
  71         [FEAT_REG_FIFOSIZE]                     = { 8, 0 },
  72         [FEAT_REG_HORIZONTALACCU]               = { 9, 0 },
  73         [FEAT_REG_VERTICALACCU]                 = { 25, 16 },
  74         [FEAT_REG_DISPC_CLK_SWITCH]             = { 0, 0 },
  75 };
  76
  77 static const struct dss_reg_field omap3_dss_reg_fields[] = {
  78         [FEAT_REG_FIRHINC]                      = { 12, 0 },
  79         [FEAT_REG_FIRVINC]                      = { 28, 16 },
  80         [FEAT_REG_FIFOLOWTHRESHOLD]             = { 11, 0 },
  81         [FEAT_REG_FIFOHIGHTHRESHOLD]            = { 27, 16 },
  82         [FEAT_REG_FIFOSIZE]                     = { 10, 0 },
  83         [FEAT_REG_HORIZONTALACCU]               = { 9, 0 },
  84         [FEAT_REG_VERTICALACCU]                 = { 25, 16 },
  85         [FEAT_REG_DISPC_CLK_SWITCH]             = { 0, 0 },
  86 };
  87
  88 static const struct dss_reg_field am43xx_dss_reg_fields[] = {
  89         [FEAT_REG_FIRHINC]                      = { 12, 0 },
  90         [FEAT_REG_FIRVINC]                      = { 28, 16 },
  91         [FEAT_REG_FIFOLOWTHRESHOLD]     = { 11, 0 },
  92         [FEAT_REG_FIFOHIGHTHRESHOLD]            = { 27, 16 },
  93         [FEAT_REG_FIFOSIZE]             = { 10, 0 },
  94         [FEAT_REG_HORIZONTALACCU]               = { 9, 0 },
  95         [FEAT_REG_VERTICALACCU]                 = { 25, 16 },
  96         [FEAT_REG_DISPC_CLK_SWITCH]             = { 0, 0 },
  97 };
  98
  99 static const struct dss_reg_field omap4_dss_reg_fields[] = {
 100         [FEAT_REG_FIRHINC]                      = { 12, 0 },
 101         [FEAT_REG_FIRVINC]                      = { 28, 16 },
 102         [FEAT_REG_FIFOLOWTHRESHOLD]             = { 15, 0 },
 103         [FEAT_REG_FIFOHIGHTHRESHOLD]            = { 31, 16 },
 104         [FEAT_REG_FIFOSIZE]                     = { 15, 0 },
 105         [FEAT_REG_HORIZONTALACCU]               = { 10, 0 },
 106         [FEAT_REG_VERTICALACCU]                 = { 26, 16 },
 107         [FEAT_REG_DISPC_CLK_SWITCH]             = { 9, 8 },
 108 };
 109
 110 static const struct dss_reg_field omap5_dss_reg_fields[] = {
 111         [FEAT_REG_FIRHINC]                      = { 12, 0 },
 112         [FEAT_REG_FIRVINC]                      = { 28, 16 },
 113         [FEAT_REG_FIFOLOWTHRESHOLD]             = { 15, 0 },
 114         [FEAT_REG_FIFOHIGHTHRESHOLD]            = { 31, 16 },
 115         [FEAT_REG_FIFOSIZE]                     = { 15, 0 },
 116         [FEAT_REG_HORIZONTALACCU]               = { 10, 0 },
 117         [FEAT_REG_VERTICALACCU]                 = { 26, 16 },
 118         [FEAT_REG_DISPC_CLK_SWITCH]             = { 9, 7 },
 119 };
 120
 121 static const enum omap_display_type omap2_dss_supported_displays[] = {
 122         /* OMAP_DSS_CHANNEL_LCD */
 123         OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI,
 124
 125         /* OMAP_DSS_CHANNEL_DIGIT */
 126         OMAP_DISPLAY_TYPE_VENC,
 127 };
 128
 129 static const enum omap_display_type omap3430_dss_supported_displays[] = {
 130         /* OMAP_DSS_CHANNEL_LCD */
 131         OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
 132         OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI,
 133
 134         /* OMAP_DSS_CHANNEL_DIGIT */
 135         OMAP_DISPLAY_TYPE_VENC,
 136 };
 137
 138 static const enum omap_display_type omap3630_dss_supported_displays[] = {
 139         /* OMAP_DSS_CHANNEL_LCD */
 140         OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
 141         OMAP_DISPLAY_TYPE_DSI,
 142
 143         /* OMAP_DSS_CHANNEL_DIGIT */
 144         OMAP_DISPLAY_TYPE_VENC,
 145 };
 146
 147 static const enum omap_display_type am43xx_dss_supported_displays[] = {
 148         /* OMAP_DSS_CHANNEL_LCD */
 149         OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI,
 150 };
 151
 152 static const enum omap_display_type omap4_dss_supported_displays[] = {
 153         /* OMAP_DSS_CHANNEL_LCD */
 154         OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI,
 155
 156         /* OMAP_DSS_CHANNEL_DIGIT */
 157         OMAP_DISPLAY_TYPE_VENC | OMAP_DISPLAY_TYPE_HDMI,
 158
 159         /* OMAP_DSS_CHANNEL_LCD2 */
 160         OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
 161         OMAP_DISPLAY_TYPE_DSI,
 162 };
 163
 164 static const enum omap_display_type omap5_dss_supported_displays[] = {
 165         /* OMAP_DSS_CHANNEL_LCD */
 166         OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
 167         OMAP_DISPLAY_TYPE_DSI,
 168
 169         /* OMAP_DSS_CHANNEL_DIGIT */
 170         OMAP_DISPLAY_TYPE_HDMI | OMAP_DISPLAY_TYPE_DPI,
 171
 172         /* OMAP_DSS_CHANNEL_LCD2 */
 173         OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
 174         OMAP_DISPLAY_TYPE_DSI,
 175 };
 176
 177 static const enum omap_dss_output_id omap2_dss_supported_outputs[] = {
 178         /* OMAP_DSS_CHANNEL_LCD */
 179         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI,
 180
 181         /* OMAP_DSS_CHANNEL_DIGIT */
 182         OMAP_DSS_OUTPUT_VENC,
 183 };
 184
 185 static const enum omap_dss_output_id omap3430_dss_supported_outputs[] = {
 186         /* OMAP_DSS_CHANNEL_LCD */
 187         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
 188         OMAP_DSS_OUTPUT_SDI | OMAP_DSS_OUTPUT_DSI1,
 189
 190         /* OMAP_DSS_CHANNEL_DIGIT */
 191         OMAP_DSS_OUTPUT_VENC,
 192 };
 193
 194 static const enum omap_dss_output_id omap3630_dss_supported_outputs[] = {
 195         /* OMAP_DSS_CHANNEL_LCD */
 196         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
 197         OMAP_DSS_OUTPUT_DSI1,
 198
 199         /* OMAP_DSS_CHANNEL_DIGIT */
 200         OMAP_DSS_OUTPUT_VENC,
 201 };
 202
 203 static const enum omap_dss_output_id am43xx_dss_supported_outputs[] = {
 204         /* OMAP_DSS_CHANNEL_LCD */
 205         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI,
 206 };
 207
 208 static const enum omap_dss_output_id omap4_dss_supported_outputs[] = {
 209         /* OMAP_DSS_CHANNEL_LCD */
 210         OMAP_DSS_OUTPUT_DBI | OMAP_DSS_OUTPUT_DSI1,
 211
 212         /* OMAP_DSS_CHANNEL_DIGIT */
 213         OMAP_DSS_OUTPUT_VENC | OMAP_DSS_OUTPUT_HDMI,
 214
 215         /* OMAP_DSS_CHANNEL_LCD2 */
 216         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
 217         OMAP_DSS_OUTPUT_DSI2,
 218 };
 219
 220 static const enum omap_dss_output_id omap5_dss_supported_outputs[] = {
 221         /* OMAP_DSS_CHANNEL_LCD */
 222         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
 223         OMAP_DSS_OUTPUT_DSI1 | OMAP_DSS_OUTPUT_DSI2,
 224
 225         /* OMAP_DSS_CHANNEL_DIGIT */
 226         OMAP_DSS_OUTPUT_HDMI,
 227
 228         /* OMAP_DSS_CHANNEL_LCD2 */
 229         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
 230         OMAP_DSS_OUTPUT_DSI1,
 231
 232         /* OMAP_DSS_CHANNEL_LCD3 */
 233         OMAP_DSS_OUTPUT_DPI | OMAP_DSS_OUTPUT_DBI |
 234         OMAP_DSS_OUTPUT_DSI2,
 235 };
 236
 237 static const enum omap_color_mode omap2_dss_supported_color_modes[] = {
 238         /* OMAP_DSS_GFX */
 239         OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
 240         OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
 241         OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 |
 242         OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P,
 243
 244         /* OMAP_DSS_VIDEO1 */
 245         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
 246         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
 247         OMAP_DSS_COLOR_UYVY,
 248
 249         /* OMAP_DSS_VIDEO2 */
 250         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
 251         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
 252         OMAP_DSS_COLOR_UYVY,
 253 };
 254
 255 static const enum omap_color_mode omap3_dss_supported_color_modes[] = {
 256         /* OMAP_DSS_GFX */
 257         OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
 258         OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
 259         OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
 260         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
 261         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
 262         OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
 263
 264         /* OMAP_DSS_VIDEO1 */
 265         OMAP_DSS_COLOR_RGB24U | OMAP_DSS_COLOR_RGB24P |
 266         OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_RGB16 |
 267         OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_UYVY,
 268
 269         /* OMAP_DSS_VIDEO2 */
 270         OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
 271         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
 272         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_YUV2 |
 273         OMAP_DSS_COLOR_UYVY | OMAP_DSS_COLOR_ARGB32 |
 274         OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32,
 275 };
 276
 277 static const enum omap_color_mode omap4_dss_supported_color_modes[] = {
 278         /* OMAP_DSS_GFX */
 279         OMAP_DSS_COLOR_CLUT1 | OMAP_DSS_COLOR_CLUT2 |
 280         OMAP_DSS_COLOR_CLUT4 | OMAP_DSS_COLOR_CLUT8 |
 281         OMAP_DSS_COLOR_RGB12U | OMAP_DSS_COLOR_ARGB16 |
 282         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB24U |
 283         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_ARGB32 |
 284         OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_RGBX32 |
 285         OMAP_DSS_COLOR_ARGB16_1555 | OMAP_DSS_COLOR_RGBX16 |
 286         OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_XRGB16_1555,
 287
 288         /* OMAP_DSS_VIDEO1 */
 289         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB12U |
 290         OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_ARGB16_1555 |
 291         OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_NV12 |
 292         OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_RGB24U |
 293         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_UYVY |
 294         OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 |
 295         OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 |
 296         OMAP_DSS_COLOR_RGBX32,
 297
 298        /* OMAP_DSS_VIDEO2 */
 299         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB12U |
 300         OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_ARGB16_1555 |
 301         OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_NV12 |
 302         OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_RGB24U |
 303         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_UYVY |
 304         OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 |
 305         OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 |
 306         OMAP_DSS_COLOR_RGBX32,
 307
 308         /* OMAP_DSS_VIDEO3 */
 309         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB12U |
 310         OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_ARGB16_1555 |
 311         OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_NV12 |
 312         OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_RGB24U |
 313         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_UYVY |
 314         OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 |
 315         OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 |
 316         OMAP_DSS_COLOR_RGBX32,
 317
 318         /* OMAP_DSS_WB */
 319         OMAP_DSS_COLOR_RGB16 | OMAP_DSS_COLOR_RGB12U |
 320         OMAP_DSS_COLOR_YUV2 | OMAP_DSS_COLOR_ARGB16_1555 |
 321         OMAP_DSS_COLOR_RGBA32 | OMAP_DSS_COLOR_NV12 |
 322         OMAP_DSS_COLOR_RGBA16 | OMAP_DSS_COLOR_RGB24U |
 323         OMAP_DSS_COLOR_RGB24P | OMAP_DSS_COLOR_UYVY |
 324         OMAP_DSS_COLOR_ARGB16 | OMAP_DSS_COLOR_XRGB16_1555 |
 325         OMAP_DSS_COLOR_ARGB32 | OMAP_DSS_COLOR_RGBX16 |
 326         OMAP_DSS_COLOR_RGBX32,
 327 };
 328
 329 static const enum omap_overlay_caps omap2_dss_overlay_caps[] = {
 330         /* OMAP_DSS_GFX */
 331         OMAP_DSS_OVL_CAP_POS | OMAP_DSS_OVL_CAP_REPLICATION,
 332
 333         /* OMAP_DSS_VIDEO1 */
 334         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_POS |
 335                 OMAP_DSS_OVL_CAP_REPLICATION,
 336
 337         /* OMAP_DSS_VIDEO2 */
 338         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_POS |
 339                 OMAP_DSS_OVL_CAP_REPLICATION,
 340 };
 341
 342 static const enum omap_overlay_caps omap3430_dss_overlay_caps[] = {
 343         /* OMAP_DSS_GFX */
 344         OMAP_DSS_OVL_CAP_GLOBAL_ALPHA | OMAP_DSS_OVL_CAP_POS |
 345                 OMAP_DSS_OVL_CAP_REPLICATION,
 346
 347         /* OMAP_DSS_VIDEO1 */
 348         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_POS |
 349                 OMAP_DSS_OVL_CAP_REPLICATION,
 350
 351         /* OMAP_DSS_VIDEO2 */
 352         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
 353                 OMAP_DSS_OVL_CAP_POS | OMAP_DSS_OVL_CAP_REPLICATION,
 354 };
 355
 356 static const enum omap_overlay_caps omap3630_dss_overlay_caps[] = {
 357         /* OMAP_DSS_GFX */
 358         OMAP_DSS_OVL_CAP_GLOBAL_ALPHA | OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA |
 359                 OMAP_DSS_OVL_CAP_POS | OMAP_DSS_OVL_CAP_REPLICATION,
 360
 361         /* OMAP_DSS_VIDEO1 */
 362         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_POS |
 363                 OMAP_DSS_OVL_CAP_REPLICATION,
 364
 365         /* OMAP_DSS_VIDEO2 */
 366         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
 367                 OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_POS |
 368                 OMAP_DSS_OVL_CAP_REPLICATION,
 369 };
 370
 371 static const enum omap_overlay_caps omap4_dss_overlay_caps[] = {
 372         /* OMAP_DSS_GFX */
 373         OMAP_DSS_OVL_CAP_GLOBAL_ALPHA | OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA |
 374                 OMAP_DSS_OVL_CAP_ZORDER | OMAP_DSS_OVL_CAP_POS |
 375                 OMAP_DSS_OVL_CAP_REPLICATION,
 376
 377         /* OMAP_DSS_VIDEO1 */
 378         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
 379                 OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_ZORDER |
 380                 OMAP_DSS_OVL_CAP_POS | OMAP_DSS_OVL_CAP_REPLICATION,
 381
 382         /* OMAP_DSS_VIDEO2 */
 383         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
 384                 OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_ZORDER |
 385                 OMAP_DSS_OVL_CAP_POS | OMAP_DSS_OVL_CAP_REPLICATION,
 386
 387         /* OMAP_DSS_VIDEO3 */
 388         OMAP_DSS_OVL_CAP_SCALE | OMAP_DSS_OVL_CAP_GLOBAL_ALPHA |
 389                 OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA | OMAP_DSS_OVL_CAP_ZORDER |
 390                 OMAP_DSS_OVL_CAP_POS | OMAP_DSS_OVL_CAP_REPLICATION,
 391 };
 392
 393 static const char * const omap2_dss_clk_source_names[] = {
 394         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC]  = "N/A",
 395         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI]    = "N/A",
 396         [OMAP_DSS_CLK_SRC_FCK]                  = "DSS_FCLK1",
 397 };
 398
 399 static const char * const omap3_dss_clk_source_names[] = {
 400         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC]  = "DSI1_PLL_FCLK",
 401         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI]    = "DSI2_PLL_FCLK",
 402         [OMAP_DSS_CLK_SRC_FCK]                  = "DSS1_ALWON_FCLK",
 403 };
 404
 405 static const char * const omap4_dss_clk_source_names[] = {
 406         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC]  = "PLL1_CLK1",
 407         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI]    = "PLL1_CLK2",
 408         [OMAP_DSS_CLK_SRC_FCK]                  = "DSS_FCLK",
 409         [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC] = "PLL2_CLK1",
 410         [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI]   = "PLL2_CLK2",
 411 };
 412
 413 static const char * const omap5_dss_clk_source_names[] = {
 414         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DISPC]  = "DPLL_DSI1_A_CLK1",
 415         [OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI]    = "DPLL_DSI1_A_CLK2",
 416         [OMAP_DSS_CLK_SRC_FCK]                  = "DSS_CLK",
 417         [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC] = "DPLL_DSI1_C_CLK1",
 418         [OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI]   = "DPLL_DSI1_C_CLK2",
 419 };
 420
 421 static const struct dss_param_range omap2_dss_param_range[] = {
 422         [FEAT_PARAM_DSS_FCK]                    = { 0, 133000000 },
 423         [FEAT_PARAM_DSS_PCD]                    = { 2, 255 },
 424         [FEAT_PARAM_DOWNSCALE]                  = { 1, 2 },
 425         /*
 426          * Assuming the line width buffer to be 768 pixels as OMAP2 DISPC
 427          * scaler cannot scale a image with width more than 768.
 428          */
 429         [FEAT_PARAM_LINEWIDTH]                  = { 1, 768 },
 430 };
 431
 432 static const struct dss_param_range omap3_dss_param_range[] = {
 433         [FEAT_PARAM_DSS_FCK]                    = { 0, 173000000 },
 434         [FEAT_PARAM_DSS_PCD]                    = { 1, 255 },
 435         [FEAT_PARAM_DSIPLL_LPDIV]               = { 1, (1 << 13) - 1},
 436         [FEAT_PARAM_DSI_FCK]                    = { 0, 173000000 },
 437         [FEAT_PARAM_DOWNSCALE]                  = { 1, 4 },
 438         [FEAT_PARAM_LINEWIDTH]                  = { 1, 1024 },
 439 };
 440
 441 static const struct dss_param_range am43xx_dss_param_range[] = {
 442         [FEAT_PARAM_DSS_FCK]                    = { 0, 200000000 },
 443         [FEAT_PARAM_DSS_PCD]                    = { 1, 255 },
 444         [FEAT_PARAM_DOWNSCALE]                  = { 1, 4 },
 445         [FEAT_PARAM_LINEWIDTH]                  = { 1, 1024 },
 446 };
 447
 448 static const struct dss_param_range omap4_dss_param_range[] = {
 449         [FEAT_PARAM_DSS_FCK]                    = { 0, 186000000 },
 450         [FEAT_PARAM_DSS_PCD]                    = { 1, 255 },
 451         [FEAT_PARAM_DSIPLL_LPDIV]               = { 0, (1 << 13) - 1 },
 452         [FEAT_PARAM_DSI_FCK]                    = { 0, 170000000 },
 453         [FEAT_PARAM_DOWNSCALE]                  = { 1, 4 },
 454         [FEAT_PARAM_LINEWIDTH]                  = { 1, 2048 },
 455 };
 456
 457 static const struct dss_param_range omap5_dss_param_range[] = {
 458         [FEAT_PARAM_DSS_FCK]                    = { 0, 209250000 },
 459         [FEAT_PARAM_DSS_PCD]                    = { 1, 255 },
 460         [FEAT_PARAM_DSIPLL_LPDIV]               = { 0, (1 << 13) - 1 },
 461         [FEAT_PARAM_DSI_FCK]                    = { 0, 209250000 },
 462         [FEAT_PARAM_DOWNSCALE]                  = { 1, 4 },
 463         [FEAT_PARAM_LINEWIDTH]                  = { 1, 2048 },
 464 };
 465
 466 static const enum dss_feat_id omap2_dss_feat_list[] = {
 467         FEAT_LCDENABLEPOL,
 468         FEAT_LCDENABLESIGNAL,
 469         FEAT_PCKFREEENABLE,
 470         FEAT_FUNCGATED,
 471         FEAT_ROWREPEATENABLE,
 472         FEAT_RESIZECONF,
 473 };
 474
 475 static const enum dss_feat_id omap3430_dss_feat_list[] = {
 476         FEAT_LCDENABLEPOL,
 477         FEAT_LCDENABLESIGNAL,
 478         FEAT_PCKFREEENABLE,
 479         FEAT_FUNCGATED,
 480         FEAT_LINEBUFFERSPLIT,
 481         FEAT_ROWREPEATENABLE,
 482         FEAT_RESIZECONF,
 483         FEAT_DSI_REVERSE_TXCLKESC,
 484         FEAT_VENC_REQUIRES_TV_DAC_CLK,
 485         FEAT_CPR,
 486         FEAT_PRELOAD,
 487         FEAT_FIR_COEF_V,
 488         FEAT_ALPHA_FIXED_ZORDER,
 489         FEAT_FIFO_MERGE,
 490         FEAT_OMAP3_DSI_FIFO_BUG,
 491         FEAT_DPI_USES_VDDS_DSI,
 492 };
 493
 494 static const enum dss_feat_id am35xx_dss_feat_list[] = {
 495         FEAT_LCDENABLEPOL,
 496         FEAT_LCDENABLESIGNAL,
 497         FEAT_PCKFREEENABLE,
 498         FEAT_FUNCGATED,
 499         FEAT_LINEBUFFERSPLIT,
 500         FEAT_ROWREPEATENABLE,
 501         FEAT_RESIZECONF,
 502         FEAT_DSI_REVERSE_TXCLKESC,
 503         FEAT_VENC_REQUIRES_TV_DAC_CLK,
 504         FEAT_CPR,
 505         FEAT_PRELOAD,
 506         FEAT_FIR_COEF_V,
 507         FEAT_ALPHA_FIXED_ZORDER,
 508         FEAT_FIFO_MERGE,
 509         FEAT_OMAP3_DSI_FIFO_BUG,
 510 };
 511
 512 static const enum dss_feat_id am43xx_dss_feat_list[] = {
 513         FEAT_LCDENABLEPOL,
 514         FEAT_LCDENABLESIGNAL,
 515         FEAT_PCKFREEENABLE,
 516         FEAT_FUNCGATED,
 517         FEAT_LINEBUFFERSPLIT,
 518         FEAT_ROWREPEATENABLE,
 519         FEAT_RESIZECONF,
 520         FEAT_CPR,
 521         FEAT_PRELOAD,
 522         FEAT_FIR_COEF_V,
 523         FEAT_ALPHA_FIXED_ZORDER,
 524         FEAT_FIFO_MERGE,
 525 };
 526
 527 static const enum dss_feat_id omap3630_dss_feat_list[] = {
 528         FEAT_LCDENABLEPOL,
 529         FEAT_LCDENABLESIGNAL,
 530         FEAT_PCKFREEENABLE,
 531         FEAT_FUNCGATED,
 532         FEAT_LINEBUFFERSPLIT,
 533         FEAT_ROWREPEATENABLE,
 534         FEAT_RESIZECONF,
 535         FEAT_DSI_PLL_PWR_BUG,
 536         FEAT_CPR,
 537         FEAT_PRELOAD,
 538         FEAT_FIR_COEF_V,
 539         FEAT_ALPHA_FIXED_ZORDER,
 540         FEAT_FIFO_MERGE,
 541         FEAT_OMAP3_DSI_FIFO_BUG,
 542         FEAT_DPI_USES_VDDS_DSI,
 543 };
 544
 545 static const enum dss_feat_id omap4430_es1_0_dss_feat_list[] = {
 546         FEAT_MGR_LCD2,
 547         FEAT_CORE_CLK_DIV,
 548         FEAT_LCD_CLK_SRC,
 549         FEAT_DSI_DCS_CMD_CONFIG_VC,
 550         FEAT_DSI_VC_OCP_WIDTH,
 551         FEAT_DSI_GNQ,
 552         FEAT_HANDLE_UV_SEPARATE,
 553         FEAT_ATTR2,
 554         FEAT_CPR,
 555         FEAT_PRELOAD,
 556         FEAT_FIR_COEF_V,
 557         FEAT_ALPHA_FREE_ZORDER,
 558         FEAT_FIFO_MERGE,
 559         FEAT_BURST_2D,
 560 };
 561
 562 static const enum dss_feat_id omap4430_es2_0_1_2_dss_feat_list[] = {
 563         FEAT_MGR_LCD2,
 564         FEAT_CORE_CLK_DIV,
 565         FEAT_LCD_CLK_SRC,
 566         FEAT_DSI_DCS_CMD_CONFIG_VC,
 567         FEAT_DSI_VC_OCP_WIDTH,
 568         FEAT_DSI_GNQ,
 569         FEAT_HDMI_CTS_SWMODE,
 570         FEAT_HANDLE_UV_SEPARATE,
 571         FEAT_ATTR2,
 572         FEAT_CPR,
 573         FEAT_PRELOAD,
 574         FEAT_FIR_COEF_V,
 575         FEAT_ALPHA_FREE_ZORDER,
 576         FEAT_FIFO_MERGE,
 577         FEAT_BURST_2D,
 578 };
 579
 580 static const enum dss_feat_id omap4_dss_feat_list[] = {
 581         FEAT_MGR_LCD2,
 582         FEAT_CORE_CLK_DIV,
 583         FEAT_LCD_CLK_SRC,
 584         FEAT_DSI_DCS_CMD_CONFIG_VC,
 585         FEAT_DSI_VC_OCP_WIDTH,
 586         FEAT_DSI_GNQ,
 587         FEAT_HDMI_CTS_SWMODE,
 588         FEAT_HDMI_AUDIO_USE_MCLK,
 589         FEAT_HANDLE_UV_SEPARATE,
 590         FEAT_ATTR2,
 591         FEAT_CPR,
 592         FEAT_PRELOAD,
 593         FEAT_FIR_COEF_V,
 594         FEAT_ALPHA_FREE_ZORDER,
 595         FEAT_FIFO_MERGE,
 596         FEAT_BURST_2D,
 597 };
 598
 599 static const enum dss_feat_id omap5_dss_feat_list[] = {
 600         FEAT_MGR_LCD2,
 601         FEAT_MGR_LCD3,
 602         FEAT_CORE_CLK_DIV,
 603         FEAT_LCD_CLK_SRC,
 604         FEAT_DSI_DCS_CMD_CONFIG_VC,
 605         FEAT_DSI_VC_OCP_WIDTH,
 606         FEAT_DSI_GNQ,
 607         FEAT_HDMI_CTS_SWMODE,
 608         FEAT_HDMI_AUDIO_USE_MCLK,
 609         FEAT_HANDLE_UV_SEPARATE,
 610         FEAT_ATTR2,
 611         FEAT_CPR,
 612         FEAT_PRELOAD,
 613         FEAT_FIR_COEF_V,
 614         FEAT_ALPHA_FREE_ZORDER,
 615         FEAT_FIFO_MERGE,
 616         FEAT_BURST_2D,
 617         FEAT_DSI_PHY_DCC,
 618         FEAT_MFLAG,
 619 };
 620
 621 /* OMAP2 DSS Features */
 622 static const struct omap_dss_features omap2_dss_features = {
 623         .reg_fields = omap2_dss_reg_fields,
 624         .num_reg_fields = ARRAY_SIZE(omap2_dss_reg_fields),
 625
 626         .features = omap2_dss_feat_list,
 627         .num_features = ARRAY_SIZE(omap2_dss_feat_list),
 628
 629         .num_mgrs = 2,
 630         .num_ovls = 3,
 631         .supported_displays = omap2_dss_supported_displays,
 632         .supported_outputs = omap2_dss_supported_outputs,
 633         .supported_color_modes = omap2_dss_supported_color_modes,
 634         .overlay_caps = omap2_dss_overlay_caps,
 635         .clksrc_names = omap2_dss_clk_source_names,
 636         .dss_params = omap2_dss_param_range,
 637         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_VRFB,
 638         .buffer_size_unit = 1,
 639         .burst_size_unit = 8,
 640 };
 641
 642 /* OMAP3 DSS Features */
 643 static const struct omap_dss_features omap3430_dss_features = {
 644         .reg_fields = omap3_dss_reg_fields,
 645         .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
 646
 647         .features = omap3430_dss_feat_list,
 648         .num_features = ARRAY_SIZE(omap3430_dss_feat_list),
 649
 650         .num_mgrs = 2,
 651         .num_ovls = 3,
 652         .supported_displays = omap3430_dss_supported_displays,
 653         .supported_outputs = omap3430_dss_supported_outputs,
 654         .supported_color_modes = omap3_dss_supported_color_modes,
 655         .overlay_caps = omap3430_dss_overlay_caps,
 656         .clksrc_names = omap3_dss_clk_source_names,
 657         .dss_params = omap3_dss_param_range,
 658         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_VRFB,
 659         .buffer_size_unit = 1,
 660         .burst_size_unit = 8,
 661 };
 662
 663 /*
 664  * AM35xx DSS Features. This is basically OMAP3 DSS Features without the
 665  * vdds_dsi regulator.
 666  */
 667 static const struct omap_dss_features am35xx_dss_features = {
 668         .reg_fields = omap3_dss_reg_fields,
 669         .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
 670
 671         .features = am35xx_dss_feat_list,
 672         .num_features = ARRAY_SIZE(am35xx_dss_feat_list),
 673
 674         .num_mgrs = 2,
 675         .num_ovls = 3,
 676         .supported_displays = omap3430_dss_supported_displays,
 677         .supported_outputs = omap3430_dss_supported_outputs,
 678         .supported_color_modes = omap3_dss_supported_color_modes,
 679         .overlay_caps = omap3430_dss_overlay_caps,
 680         .clksrc_names = omap3_dss_clk_source_names,
 681         .dss_params = omap3_dss_param_range,
 682         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_VRFB,
 683         .buffer_size_unit = 1,
 684         .burst_size_unit = 8,
 685 };
 686
 687 static const struct omap_dss_features am43xx_dss_features = {
 688         .reg_fields = am43xx_dss_reg_fields,
 689         .num_reg_fields = ARRAY_SIZE(am43xx_dss_reg_fields),
 690
 691         .features = am43xx_dss_feat_list,
 692         .num_features = ARRAY_SIZE(am43xx_dss_feat_list),
 693
 694         .num_mgrs = 1,
 695         .num_ovls = 3,
 696         .supported_displays = am43xx_dss_supported_displays,
 697         .supported_outputs = am43xx_dss_supported_outputs,
 698         .supported_color_modes = omap3_dss_supported_color_modes,
 699         .overlay_caps = omap3430_dss_overlay_caps,
 700         .clksrc_names = omap2_dss_clk_source_names,
 701         .dss_params = am43xx_dss_param_range,
 702         .supported_rotation_types = OMAP_DSS_ROT_DMA,
 703         .buffer_size_unit = 1,
 704         .burst_size_unit = 8,
 705 };
 706
 707 static const struct omap_dss_features omap3630_dss_features = {
 708         .reg_fields = omap3_dss_reg_fields,
 709         .num_reg_fields = ARRAY_SIZE(omap3_dss_reg_fields),
 710
 711         .features = omap3630_dss_feat_list,
 712         .num_features = ARRAY_SIZE(omap3630_dss_feat_list),
 713
 714         .num_mgrs = 2,
 715         .num_ovls = 3,
 716         .supported_displays = omap3630_dss_supported_displays,
 717         .supported_outputs = omap3630_dss_supported_outputs,
 718         .supported_color_modes = omap3_dss_supported_color_modes,
 719         .overlay_caps = omap3630_dss_overlay_caps,
 720         .clksrc_names = omap3_dss_clk_source_names,
 721         .dss_params = omap3_dss_param_range,
 722         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_VRFB,
 723         .buffer_size_unit = 1,
 724         .burst_size_unit = 8,
 725 };
 726
 727 /* OMAP4 DSS Features */
 728 /* For OMAP4430 ES 1.0 revision */
 729 static const struct omap_dss_features omap4430_es1_0_dss_features  = {
 730         .reg_fields = omap4_dss_reg_fields,
 731         .num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
 732
 733         .features = omap4430_es1_0_dss_feat_list,
 734         .num_features = ARRAY_SIZE(omap4430_es1_0_dss_feat_list),
 735
 736         .num_mgrs = 3,
 737         .num_ovls = 4,
 738         .num_wbs = 1,
 739         .supported_displays = omap4_dss_supported_displays,
 740         .supported_outputs = omap4_dss_supported_outputs,
 741         .supported_color_modes = omap4_dss_supported_color_modes,
 742         .overlay_caps = omap4_dss_overlay_caps,
 743         .clksrc_names = omap4_dss_clk_source_names,
 744         .dss_params = omap4_dss_param_range,
 745         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_TILER,
 746         .buffer_size_unit = 16,
 747         .burst_size_unit = 16,
 748 };
 749
 750 /* For OMAP4430 ES 2.0, 2.1 and 2.2 revisions */
 751 static const struct omap_dss_features omap4430_es2_0_1_2_dss_features = {
 752         .reg_fields = omap4_dss_reg_fields,
 753         .num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
 754
 755         .features = omap4430_es2_0_1_2_dss_feat_list,
 756         .num_features = ARRAY_SIZE(omap4430_es2_0_1_2_dss_feat_list),
 757
 758         .num_mgrs = 3,
 759         .num_ovls = 4,
 760         .num_wbs = 1,
 761         .supported_displays = omap4_dss_supported_displays,
 762         .supported_outputs = omap4_dss_supported_outputs,
 763         .supported_color_modes = omap4_dss_supported_color_modes,
 764         .overlay_caps = omap4_dss_overlay_caps,
 765         .clksrc_names = omap4_dss_clk_source_names,
 766         .dss_params = omap4_dss_param_range,
 767         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_TILER,
 768         .buffer_size_unit = 16,
 769         .burst_size_unit = 16,
 770 };
 771
 772 /* For all the other OMAP4 versions */
 773 static const struct omap_dss_features omap4_dss_features = {
 774         .reg_fields = omap4_dss_reg_fields,
 775         .num_reg_fields = ARRAY_SIZE(omap4_dss_reg_fields),
 776
 777         .features = omap4_dss_feat_list,
 778         .num_features = ARRAY_SIZE(omap4_dss_feat_list),
 779
 780         .num_mgrs = 3,
 781         .num_ovls = 4,
 782         .num_wbs = 1,
 783         .supported_displays = omap4_dss_supported_displays,
 784         .supported_outputs = omap4_dss_supported_outputs,
 785         .supported_color_modes = omap4_dss_supported_color_modes,
 786         .overlay_caps = omap4_dss_overlay_caps,
 787         .clksrc_names = omap4_dss_clk_source_names,
 788         .dss_params = omap4_dss_param_range,
 789         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_TILER,
 790         .buffer_size_unit = 16,
 791         .burst_size_unit = 16,
 792 };
 793
 794 /* OMAP5 DSS Features */
 795 static const struct omap_dss_features omap5_dss_features = {
 796         .reg_fields = omap5_dss_reg_fields,
 797         .num_reg_fields = ARRAY_SIZE(omap5_dss_reg_fields),
 798
 799         .features = omap5_dss_feat_list,
 800         .num_features = ARRAY_SIZE(omap5_dss_feat_list),
 801
 802         .num_mgrs = 4,
 803         .num_ovls = 4,
 804         .supported_displays = omap5_dss_supported_displays,
 805         .supported_outputs = omap5_dss_supported_outputs,
 806         .supported_color_modes = omap4_dss_supported_color_modes,
 807         .overlay_caps = omap4_dss_overlay_caps,
 808         .clksrc_names = omap5_dss_clk_source_names,
 809         .dss_params = omap5_dss_param_range,
 810         .supported_rotation_types = OMAP_DSS_ROT_DMA | OMAP_DSS_ROT_TILER,
 811         .buffer_size_unit = 16,
 812         .burst_size_unit = 16,
 813 };
 814
 815 /* Functions returning values related to a DSS feature */
 816 int dss_feat_get_num_mgrs(void)
 817 {
 818         return omap_current_dss_features->num_mgrs;
 819 }
 820 EXPORT_SYMBOL(dss_feat_get_num_mgrs);
 821
 822 int dss_feat_get_num_ovls(void)
 823 {
 824         return omap_current_dss_features->num_ovls;
 825 }
 826 EXPORT_SYMBOL(dss_feat_get_num_ovls);
 827
 828 int dss_feat_get_num_wbs(void)
 829 {
 830         return omap_current_dss_features->num_wbs;
 831 }
 832
 833 unsigned long dss_feat_get_param_min(enum dss_range_param param)
 834 {
 835         return omap_current_dss_features->dss_params[param].min;
 836 }
 837
 838 unsigned long dss_feat_get_param_max(enum dss_range_param param)
 839 {
 840         return omap_current_dss_features->dss_params[param].max;
 841 }
 842
 843 enum omap_display_type dss_feat_get_supported_displays(enum omap_channel channel)
 844 {
 845         return omap_current_dss_features->supported_displays[channel];
 846 }
 847 EXPORT_SYMBOL(dss_feat_get_supported_displays);
 848
 849 enum omap_dss_output_id dss_feat_get_supported_outputs(enum omap_channel channel)
 850 {
 851         return omap_current_dss_features->supported_outputs[channel];
 852 }
 853 EXPORT_SYMBOL(dss_feat_get_supported_outputs);
 854
 855 enum omap_color_mode dss_feat_get_supported_color_modes(enum omap_plane plane)
 856 {
 857         return omap_current_dss_features->supported_color_modes[plane];
 858 }
 859 EXPORT_SYMBOL(dss_feat_get_supported_color_modes);
 860
 861 enum omap_overlay_caps dss_feat_get_overlay_caps(enum omap_plane plane)
 862 {
 863         return omap_current_dss_features->overlay_caps[plane];
 864 }
 865
 866 bool dss_feat_color_mode_supported(enum omap_plane plane,
 867                 enum omap_color_mode color_mode)
 868 {
 869         return omap_current_dss_features->supported_color_modes[plane] &
 870                         color_mode;
 871 }
 872
 873 const char *dss_feat_get_clk_source_name(enum omap_dss_clk_source id)
 874 {
 875         return omap_current_dss_features->clksrc_names[id];
 876 }
 877
 878 u32 dss_feat_get_buffer_size_unit(void)
 879 {
 880         return omap_current_dss_features->buffer_size_unit;
 881 }
 882
 883 u32 dss_feat_get_burst_size_unit(void)
 884 {
 885         return omap_current_dss_features->burst_size_unit;
 886 }
 887
 888 /* DSS has_feature check */
 889 bool dss_has_feature(enum dss_feat_id id)
 890 {
 891         int i;
 892         const enum dss_feat_id *features = omap_current_dss_features->features;
 893         const int num_features = omap_current_dss_features->num_features;
 894
 895         for (i = 0; i < num_features; i++) {
 896                 if (features[i] == id)
 897                         return true;
 898         }
 899
 900         return false;
 901 }
 902
 903 void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end)
 904 {
 905         if (id >= omap_current_dss_features->num_reg_fields)
 906                 BUG();
 907
 908         *start = omap_current_dss_features->reg_fields[id].start;
 909         *end = omap_current_dss_features->reg_fields[id].end;
 910 }
 911
 912 bool dss_feat_rotation_type_supported(enum omap_dss_rotation_type rot_type)
 913 {
 914         return omap_current_dss_features->supported_rotation_types & rot_type;
 915 }
 916
 917 void dss_features_init(enum omapdss_version version)
 918 {
 919         switch (version) {
 920         case OMAPDSS_VER_OMAP24xx:
 921                 omap_current_dss_features = &omap2_dss_features;
 922                 break;
 923
 924         case OMAPDSS_VER_OMAP34xx_ES1:
 925         case OMAPDSS_VER_OMAP34xx_ES3:
 926                 omap_current_dss_features = &omap3430_dss_features;
 927                 break;
 928
 929         case OMAPDSS_VER_OMAP3630:
 930                 omap_current_dss_features = &omap3630_dss_features;
 931                 break;
 932
 933         case OMAPDSS_VER_OMAP4430_ES1:
 934                 omap_current_dss_features = &omap4430_es1_0_dss_features;
 935                 break;
 936
 937         case OMAPDSS_VER_OMAP4430_ES2:
 938                 omap_current_dss_features = &omap4430_es2_0_1_2_dss_features;
 939                 break;
 940
 941         case OMAPDSS_VER_OMAP4:
 942                 omap_current_dss_features = &omap4_dss_features;
 943                 break;
 944
 945         case OMAPDSS_VER_OMAP5:
 946         case OMAPDSS_VER_DRA7xx:
 947                 omap_current_dss_features = &omap5_dss_features;
 948                 break;
 949
 950         case OMAPDSS_VER_AM35xx:
 951                 omap_current_dss_features = &am35xx_dss_features;
 952                 break;
 953
 954         case OMAPDSS_VER_AM43xx:
 955                 omap_current_dss_features = &am43xx_dss_features;
 956                 break;
 957
 958         default:
 959                 DSSWARN("Unsupported OMAP version");
 960                 break;
 961         }
 962 }