1 /* 2 * Copyright 2012-15 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 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 NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: AMD 23 * 24 */ 25 26 #include "reg_helper.h" 27 #include "dcn20_optc.h" 28 #include "dc.h" 29 30 #define REG(reg)\ 31 optc1->tg_regs->reg 32 33 #define CTX \ 34 optc1->base.ctx 35 36 #undef FN 37 #define FN(reg_name, field_name) \ 38 optc1->tg_shift->field_name, optc1->tg_mask->field_name 39 40 /** 41 * Enable CRTC 42 * Enable CRTC - call ASIC Control Object to enable Timing generator. 43 */ 44 bool optc2_enable_crtc(struct timing_generator *optc) 45 { 46 /* TODO FPGA wait for answer 47 * OTG_MASTER_UPDATE_MODE != CRTC_MASTER_UPDATE_MODE 48 * OTG_MASTER_UPDATE_LOCK != CRTC_MASTER_UPDATE_LOCK 49 */ 50 struct optc *optc1 = DCN10TG_FROM_TG(optc); 51 52 /* opp instance for OTG. For DCN1.0, ODM is remoed. 53 * OPP and OPTC should 1:1 mapping 54 */ 55 REG_UPDATE(OPTC_DATA_SOURCE_SELECT, 56 OPTC_SEG0_SRC_SEL, optc->inst); 57 58 /* VTG enable first is for HW workaround */ 59 REG_UPDATE(CONTROL, 60 VTG0_ENABLE, 1); 61 62 /* Enable CRTC */ 63 REG_UPDATE_2(OTG_CONTROL, 64 OTG_DISABLE_POINT_CNTL, 3, 65 OTG_MASTER_EN, 1); 66 67 return true; 68 } 69 70 /** 71 * DRR double buffering control to select buffer point 72 * for V_TOTAL, H_TOTAL, VTOTAL_MIN, VTOTAL_MAX, VTOTAL_MIN_SEL and VTOTAL_MAX_SEL registers 73 * Options: anytime, start of frame, dp start of frame (range timing) 74 */ 75 void optc2_set_timing_db_mode(struct timing_generator *optc, bool enable) 76 { 77 struct optc *optc1 = DCN10TG_FROM_TG(optc); 78 79 uint32_t blank_data_double_buffer_enable = enable ? 1 : 0; 80 81 REG_UPDATE(OTG_DOUBLE_BUFFER_CONTROL, 82 OTG_RANGE_TIMING_DBUF_UPDATE_MODE, blank_data_double_buffer_enable); 83 } 84 85 /** 86 *For the below, I'm not sure how your GSL parameters are stored in your env, 87 * so I will assume a gsl_params struct for now 88 */ 89 void optc2_set_gsl(struct timing_generator *optc, 90 const struct gsl_params *params) 91 { 92 struct optc *optc1 = DCN10TG_FROM_TG(optc); 93 94 /** 95 * There are (MAX_OPTC+1)/2 gsl groups available for use. 96 * In each group (assign an OTG to a group by setting OTG_GSLX_EN = 1, 97 * set one of the OTGs to be the master (OTG_GSL_MASTER_EN = 1) and the rest are slaves. 98 */ 99 REG_UPDATE_5(OTG_GSL_CONTROL, 100 OTG_GSL0_EN, params->gsl0_en, 101 OTG_GSL1_EN, params->gsl1_en, 102 OTG_GSL2_EN, params->gsl2_en, 103 OTG_GSL_MASTER_EN, params->gsl_master_en, 104 OTG_GSL_MASTER_MODE, params->gsl_master_mode); 105 } 106 107 108 /* Use the gsl allow flip as the master update lock */ 109 void optc2_use_gsl_as_master_update_lock(struct timing_generator *optc, 110 const struct gsl_params *params) 111 { 112 struct optc *optc1 = DCN10TG_FROM_TG(optc); 113 114 REG_UPDATE(OTG_GSL_CONTROL, 115 OTG_MASTER_UPDATE_LOCK_GSL_EN, params->master_update_lock_gsl_en); 116 } 117 118 /* You can control the GSL timing by limiting GSL to a window (X,Y) */ 119 void optc2_set_gsl_window(struct timing_generator *optc, 120 const struct gsl_params *params) 121 { 122 struct optc *optc1 = DCN10TG_FROM_TG(optc); 123 124 REG_SET_2(OTG_GSL_WINDOW_X, 0, 125 OTG_GSL_WINDOW_START_X, params->gsl_window_start_x, 126 OTG_GSL_WINDOW_END_X, params->gsl_window_end_x); 127 REG_SET_2(OTG_GSL_WINDOW_Y, 0, 128 OTG_GSL_WINDOW_START_Y, params->gsl_window_start_y, 129 OTG_GSL_WINDOW_END_Y, params->gsl_window_end_y); 130 } 131 132 /** 133 * Vupdate keepout can be set to a window to block the update lock for that pipe from changing. 134 * Start offset begins with vstartup and goes for x number of clocks, 135 * end offset starts from end of vupdate to x number of clocks. 136 */ 137 void optc2_set_vupdate_keepout(struct timing_generator *optc, 138 const struct vupdate_keepout_params *params) 139 { 140 struct optc *optc1 = DCN10TG_FROM_TG(optc); 141 142 REG_SET_3(OTG_VUPDATE_KEEPOUT, 0, 143 MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_START_OFFSET, params->start_offset, 144 MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_END_OFFSET, params->end_offset, 145 OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN, params->enable); 146 } 147 148 void optc2_set_gsl_source_select( 149 struct timing_generator *optc, 150 int group_idx, 151 uint32_t gsl_ready_signal) 152 { 153 struct optc *optc1 = DCN10TG_FROM_TG(optc); 154 155 switch (group_idx) { 156 case 1: 157 REG_UPDATE(GSL_SOURCE_SELECT, GSL0_READY_SOURCE_SEL, gsl_ready_signal); 158 break; 159 case 2: 160 REG_UPDATE(GSL_SOURCE_SELECT, GSL1_READY_SOURCE_SEL, gsl_ready_signal); 161 break; 162 case 3: 163 REG_UPDATE(GSL_SOURCE_SELECT, GSL2_READY_SOURCE_SEL, gsl_ready_signal); 164 break; 165 default: 166 break; 167 } 168 } 169 170 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT 171 /* DSC encoder frame start controls: x = h position, line_num = # of lines from vstartup */ 172 void optc2_set_dsc_encoder_frame_start(struct timing_generator *optc, 173 int x_position, 174 int line_num) 175 { 176 struct optc *optc1 = DCN10TG_FROM_TG(optc); 177 178 REG_SET_2(OTG_DSC_START_POSITION, 0, 179 OTG_DSC_START_POSITION_X, x_position, 180 OTG_DSC_START_POSITION_LINE_NUM, line_num); 181 } 182 183 /* Set DSC-related configuration. 184 * dsc_mode: 0 disables DSC, other values enable DSC in specified format 185 * sc_bytes_per_pixel: Bytes per pixel in u3.28 format 186 * dsc_slice_width: Slice width in pixels 187 */ 188 void optc2_set_dsc_config(struct timing_generator *optc, 189 enum optc_dsc_mode dsc_mode, 190 uint32_t dsc_bytes_per_pixel, 191 uint32_t dsc_slice_width) 192 { 193 struct optc *optc1 = DCN10TG_FROM_TG(optc); 194 uint32_t data_format = 0; 195 /* skip if dsc mode is not changed */ 196 data_format = dm_read_reg(CTX, REG(OPTC_DATA_FORMAT_CONTROL)); 197 198 data_format = data_format & 0x30; /* bit5:4 */ 199 data_format = data_format >> 4; 200 201 if (data_format == dsc_mode) 202 return; 203 204 REG_UPDATE(OPTC_DATA_FORMAT_CONTROL, 205 OPTC_DSC_MODE, dsc_mode); 206 207 REG_SET(OPTC_BYTES_PER_PIXEL, 0, 208 OPTC_DSC_BYTES_PER_PIXEL, dsc_bytes_per_pixel); 209 210 REG_UPDATE(OPTC_WIDTH_CONTROL, 211 OPTC_DSC_SLICE_WIDTH, dsc_slice_width); 212 } 213 #endif 214 215 /** 216 * PTI i think is already done somewhere else for 2ka 217 * (opp?, please double check. 218 * OPTC side only has 1 register to set for PTI_ENABLE) 219 */ 220 221 void optc2_set_odm_bypass(struct timing_generator *optc, 222 const struct dc_crtc_timing *dc_crtc_timing) 223 { 224 struct optc *optc1 = DCN10TG_FROM_TG(optc); 225 uint32_t h_div_2 = 0; 226 227 REG_SET_3(OPTC_DATA_SOURCE_SELECT, 0, 228 OPTC_NUM_OF_INPUT_SEGMENT, 0, 229 OPTC_SEG0_SRC_SEL, optc->inst, 230 OPTC_SEG1_SRC_SEL, 0xf); 231 REG_WRITE(OTG_H_TIMING_CNTL, 0); 232 233 h_div_2 = optc1_is_two_pixels_per_containter(dc_crtc_timing); 234 REG_UPDATE(OTG_H_TIMING_CNTL, 235 OTG_H_TIMING_DIV_BY2, h_div_2); 236 REG_SET(OPTC_MEMORY_CONFIG, 0, 237 OPTC_MEM_SEL, 0); 238 optc1->opp_count = 1; 239 } 240 241 void optc2_set_odm_combine(struct timing_generator *optc, int *opp_id, int opp_cnt, 242 struct dc_crtc_timing *timing) 243 { 244 struct optc *optc1 = DCN10TG_FROM_TG(optc); 245 /* 2 pieces of memory required for up to 5120 displays, 4 for up to 8192 */ 246 int mpcc_hactive = (timing->h_addressable + timing->h_border_left + timing->h_border_right) 247 / opp_cnt; 248 int memory_mask = mpcc_hactive <= 2560 ? 0x3 : 0xf; 249 uint32_t data_fmt = 0; 250 251 /* TODO: In pseudocode but does not affect maximus, delete comment if we dont need on asic 252 * REG_SET(OTG_GLOBAL_CONTROL2, 0, GLOBAL_UPDATE_LOCK_EN, 1); 253 * Program OTG register MASTER_UPDATE_LOCK_DB_X/Y to the position before DP frame start 254 * REG_SET_2(OTG_GLOBAL_CONTROL1, 0, 255 * MASTER_UPDATE_LOCK_DB_X, 160, 256 * MASTER_UPDATE_LOCK_DB_Y, 240); 257 */ 258 if (REG(OPTC_MEMORY_CONFIG)) 259 REG_SET(OPTC_MEMORY_CONFIG, 0, 260 OPTC_MEM_SEL, memory_mask << (optc->inst * 4)); 261 262 if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR422) 263 data_fmt = 1; 264 else if (timing->pixel_encoding == PIXEL_ENCODING_YCBCR420) 265 data_fmt = 2; 266 267 REG_UPDATE(OPTC_DATA_FORMAT_CONTROL, OPTC_DATA_FORMAT, data_fmt); 268 269 ASSERT(opp_cnt == 2); 270 REG_SET_3(OPTC_DATA_SOURCE_SELECT, 0, 271 OPTC_NUM_OF_INPUT_SEGMENT, 1, 272 OPTC_SEG0_SRC_SEL, opp_id[0], 273 OPTC_SEG1_SRC_SEL, opp_id[1]); 274 275 REG_UPDATE(OPTC_WIDTH_CONTROL, 276 OPTC_SEGMENT_WIDTH, mpcc_hactive); 277 278 REG_SET(OTG_H_TIMING_CNTL, 0, OTG_H_TIMING_DIV_BY2, 1); 279 optc1->opp_count = opp_cnt; 280 } 281 282 void optc2_get_optc_source(struct timing_generator *optc, 283 uint32_t *num_of_src_opp, 284 uint32_t *src_opp_id_0, 285 uint32_t *src_opp_id_1) 286 { 287 uint32_t num_of_input_segments; 288 struct optc *optc1 = DCN10TG_FROM_TG(optc); 289 290 REG_GET_3(OPTC_DATA_SOURCE_SELECT, 291 OPTC_NUM_OF_INPUT_SEGMENT, &num_of_input_segments, 292 OPTC_SEG0_SRC_SEL, src_opp_id_0, 293 OPTC_SEG1_SRC_SEL, src_opp_id_1); 294 295 if (num_of_input_segments == 1) 296 *num_of_src_opp = 2; 297 else 298 *num_of_src_opp = 1; 299 } 300 301 void optc2_set_dwb_source(struct timing_generator *optc, 302 uint32_t dwb_pipe_inst) 303 { 304 struct optc *optc1 = DCN10TG_FROM_TG(optc); 305 306 if (dwb_pipe_inst == 0) 307 REG_UPDATE(DWB_SOURCE_SELECT, 308 OPTC_DWB0_SOURCE_SELECT, optc->inst); 309 else if (dwb_pipe_inst == 1) 310 REG_UPDATE(DWB_SOURCE_SELECT, 311 OPTC_DWB1_SOURCE_SELECT, optc->inst); 312 } 313 314 void optc2_triplebuffer_lock(struct timing_generator *optc) 315 { 316 struct optc *optc1 = DCN10TG_FROM_TG(optc); 317 318 REG_SET(OTG_GLOBAL_CONTROL0, 0, 319 OTG_MASTER_UPDATE_LOCK_SEL, optc->inst); 320 321 REG_SET(OTG_VUPDATE_KEEPOUT, 0, 322 OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN, 1); 323 324 REG_SET(OTG_MASTER_UPDATE_LOCK, 0, 325 OTG_MASTER_UPDATE_LOCK, 1); 326 327 if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS) 328 REG_WAIT(OTG_MASTER_UPDATE_LOCK, 329 UPDATE_LOCK_STATUS, 1, 330 1, 10); 331 } 332 333 void optc2_triplebuffer_unlock(struct timing_generator *optc) 334 { 335 struct optc *optc1 = DCN10TG_FROM_TG(optc); 336 337 REG_SET(OTG_MASTER_UPDATE_LOCK, 0, 338 OTG_MASTER_UPDATE_LOCK, 0); 339 340 REG_SET(OTG_VUPDATE_KEEPOUT, 0, 341 OTG_MASTER_UPDATE_LOCK_VUPDATE_KEEPOUT_EN, 0); 342 343 } 344 345 346 void optc2_setup_global_lock(struct timing_generator *optc) 347 { 348 struct optc *optc1 = DCN10TG_FROM_TG(optc); 349 uint32_t v_blank_start = 0; 350 uint32_t h_blank_start = 0, h_total = 0; 351 352 REG_SET(OTG_GLOBAL_CONTROL1, 0, MASTER_UPDATE_LOCK_DB_EN, 1); 353 354 REG_SET(OTG_GLOBAL_CONTROL2, 0, DIG_UPDATE_LOCATION, 20); 355 356 REG_GET(OTG_V_BLANK_START_END, OTG_V_BLANK_START, &v_blank_start); 357 358 REG_GET(OTG_H_BLANK_START_END, OTG_H_BLANK_START, &h_blank_start); 359 360 REG_GET(OTG_H_TOTAL, OTG_H_TOTAL, &h_total); 361 REG_UPDATE_2(OTG_GLOBAL_CONTROL1, 362 MASTER_UPDATE_LOCK_DB_X, 363 h_blank_start - 200 - 1, 364 MASTER_UPDATE_LOCK_DB_Y, 365 v_blank_start - 1); 366 } 367 368 void optc2_lock_global(struct timing_generator *optc) 369 { 370 struct optc *optc1 = DCN10TG_FROM_TG(optc); 371 372 REG_UPDATE(OTG_GLOBAL_CONTROL2, GLOBAL_UPDATE_LOCK_EN, 1); 373 374 REG_SET(OTG_GLOBAL_CONTROL0, 0, 375 OTG_MASTER_UPDATE_LOCK_SEL, optc->inst); 376 REG_SET(OTG_MASTER_UPDATE_LOCK, 0, 377 OTG_MASTER_UPDATE_LOCK, 1); 378 379 /* Should be fast, status does not update on maximus */ 380 if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS) 381 REG_WAIT(OTG_MASTER_UPDATE_LOCK, 382 UPDATE_LOCK_STATUS, 1, 383 1, 10); 384 } 385 386 void optc2_lock(struct timing_generator *optc) 387 { 388 struct optc *optc1 = DCN10TG_FROM_TG(optc); 389 390 REG_UPDATE(OTG_GLOBAL_CONTROL2, GLOBAL_UPDATE_LOCK_EN, 0); 391 392 REG_SET(OTG_GLOBAL_CONTROL0, 0, 393 OTG_MASTER_UPDATE_LOCK_SEL, optc->inst); 394 REG_SET(OTG_MASTER_UPDATE_LOCK, 0, 395 OTG_MASTER_UPDATE_LOCK, 1); 396 397 /* Should be fast, status does not update on maximus */ 398 if (optc->ctx->dce_environment != DCE_ENV_FPGA_MAXIMUS) 399 REG_WAIT(OTG_MASTER_UPDATE_LOCK, 400 UPDATE_LOCK_STATUS, 1, 401 1, 10); 402 } 403 404 void optc2_lock_doublebuffer_enable(struct timing_generator *optc) 405 { 406 struct optc *optc1 = DCN10TG_FROM_TG(optc); 407 uint32_t v_blank_start = 0; 408 uint32_t h_blank_start = 0; 409 410 REG_UPDATE(OTG_GLOBAL_CONTROL1, MASTER_UPDATE_LOCK_DB_EN, 1); 411 412 REG_UPDATE_2(OTG_GLOBAL_CONTROL2, GLOBAL_UPDATE_LOCK_EN, 1, 413 DIG_UPDATE_LOCATION, 20); 414 415 REG_GET(OTG_V_BLANK_START_END, OTG_V_BLANK_START, &v_blank_start); 416 417 REG_GET(OTG_H_BLANK_START_END, OTG_H_BLANK_START, &h_blank_start); 418 419 REG_UPDATE_2(OTG_GLOBAL_CONTROL1, 420 MASTER_UPDATE_LOCK_DB_X, 421 h_blank_start - 200 - 1, 422 MASTER_UPDATE_LOCK_DB_Y, 423 v_blank_start - 1); 424 } 425 426 void optc2_lock_doublebuffer_disable(struct timing_generator *optc) 427 { 428 struct optc *optc1 = DCN10TG_FROM_TG(optc); 429 430 REG_UPDATE_2(OTG_GLOBAL_CONTROL1, 431 MASTER_UPDATE_LOCK_DB_X, 432 0, 433 MASTER_UPDATE_LOCK_DB_Y, 434 0); 435 436 REG_UPDATE_2(OTG_GLOBAL_CONTROL2, GLOBAL_UPDATE_LOCK_EN, 0, 437 DIG_UPDATE_LOCATION, 0); 438 439 REG_UPDATE(OTG_GLOBAL_CONTROL1, MASTER_UPDATE_LOCK_DB_EN, 0); 440 } 441 442 void optc2_setup_manual_trigger(struct timing_generator *optc) 443 { 444 struct optc *optc1 = DCN10TG_FROM_TG(optc); 445 446 REG_SET(OTG_MANUAL_FLOW_CONTROL, 0, 447 MANUAL_FLOW_CONTROL, 1); 448 449 REG_SET(OTG_GLOBAL_CONTROL2, 0, 450 MANUAL_FLOW_CONTROL_SEL, optc->inst); 451 452 REG_SET_8(OTG_TRIGA_CNTL, 0, 453 OTG_TRIGA_SOURCE_SELECT, 22, 454 OTG_TRIGA_SOURCE_PIPE_SELECT, optc->inst, 455 OTG_TRIGA_RISING_EDGE_DETECT_CNTL, 1, 456 OTG_TRIGA_FALLING_EDGE_DETECT_CNTL, 0, 457 OTG_TRIGA_POLARITY_SELECT, 0, 458 OTG_TRIGA_FREQUENCY_SELECT, 0, 459 OTG_TRIGA_DELAY, 0, 460 OTG_TRIGA_CLEAR, 1); 461 } 462 463 void optc2_program_manual_trigger(struct timing_generator *optc) 464 { 465 struct optc *optc1 = DCN10TG_FROM_TG(optc); 466 467 REG_SET(OTG_TRIGA_MANUAL_TRIG, 0, 468 OTG_TRIGA_MANUAL_TRIG, 1); 469 } 470 471 static struct timing_generator_funcs dcn20_tg_funcs = { 472 .validate_timing = optc1_validate_timing, 473 .program_timing = optc1_program_timing, 474 .setup_vertical_interrupt0 = optc1_setup_vertical_interrupt0, 475 .setup_vertical_interrupt1 = optc1_setup_vertical_interrupt1, 476 .setup_vertical_interrupt2 = optc1_setup_vertical_interrupt2, 477 .program_global_sync = optc1_program_global_sync, 478 .enable_crtc = optc2_enable_crtc, 479 .disable_crtc = optc1_disable_crtc, 480 /* used by enable_timing_synchronization. Not need for FPGA */ 481 .is_counter_moving = optc1_is_counter_moving, 482 .get_position = optc1_get_position, 483 .get_frame_count = optc1_get_vblank_counter, 484 .get_scanoutpos = optc1_get_crtc_scanoutpos, 485 .get_otg_active_size = optc1_get_otg_active_size, 486 .set_early_control = optc1_set_early_control, 487 /* used by enable_timing_synchronization. Not need for FPGA */ 488 .wait_for_state = optc1_wait_for_state, 489 .set_blank = optc1_set_blank, 490 .is_blanked = optc1_is_blanked, 491 .set_blank_color = optc1_program_blank_color, 492 .enable_reset_trigger = optc1_enable_reset_trigger, 493 .enable_crtc_reset = optc1_enable_crtc_reset, 494 .did_triggered_reset_occur = optc1_did_triggered_reset_occur, 495 .triplebuffer_lock = optc2_triplebuffer_lock, 496 .triplebuffer_unlock = optc2_triplebuffer_unlock, 497 .disable_reset_trigger = optc1_disable_reset_trigger, 498 .lock = optc2_lock, 499 .unlock = optc1_unlock, 500 .lock_global = optc2_lock_global, 501 .setup_global_lock = optc2_setup_global_lock, 502 .lock_doublebuffer_enable = optc2_lock_doublebuffer_enable, 503 .lock_doublebuffer_disable = optc2_lock_doublebuffer_disable, 504 .enable_optc_clock = optc1_enable_optc_clock, 505 .set_drr = optc1_set_drr, 506 .set_static_screen_control = optc1_set_static_screen_control, 507 .program_stereo = optc1_program_stereo, 508 .is_stereo_left_eye = optc1_is_stereo_left_eye, 509 .set_blank_data_double_buffer = optc1_set_blank_data_double_buffer, 510 .tg_init = optc1_tg_init, 511 .is_tg_enabled = optc1_is_tg_enabled, 512 .is_optc_underflow_occurred = optc1_is_optc_underflow_occurred, 513 .clear_optc_underflow = optc1_clear_optc_underflow, 514 .setup_global_swap_lock = NULL, 515 .get_crc = optc1_get_crc, 516 .configure_crc = optc1_configure_crc, 517 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT 518 .set_dsc_config = optc2_set_dsc_config, 519 #endif 520 .set_dwb_source = optc2_set_dwb_source, 521 .set_odm_bypass = optc2_set_odm_bypass, 522 .set_odm_combine = optc2_set_odm_combine, 523 .get_optc_source = optc2_get_optc_source, 524 .set_gsl = optc2_set_gsl, 525 .set_gsl_source_select = optc2_set_gsl_source_select, 526 .set_vtg_params = optc1_set_vtg_params, 527 .program_manual_trigger = optc2_program_manual_trigger, 528 .setup_manual_trigger = optc2_setup_manual_trigger, 529 .is_matching_timing = optc1_is_matching_timing 530 }; 531 532 void dcn20_timing_generator_init(struct optc *optc1) 533 { 534 optc1->base.funcs = &dcn20_tg_funcs; 535 536 optc1->max_h_total = optc1->tg_mask->OTG_H_TOTAL + 1; 537 optc1->max_v_total = optc1->tg_mask->OTG_V_TOTAL + 1; 538 539 optc1->min_h_blank = 32; 540 optc1->min_v_blank = 3; 541 optc1->min_v_blank_interlace = 5; 542 optc1->min_h_sync_width = 4;// Minimum HSYNC = 8 pixels asked By HW in the first place for no actual reason. Oculus Rift S will not light up with 8 as it's hsyncWidth is 6. Changing it to 4 to fix that issue. 543 optc1->min_v_sync_width = 1; 544 } 545 546