1 /* 2 * (C) Copyright 2008-2017 Fuzhou Rockchip Electronics Co., Ltd 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <config.h> 8 #include <common.h> 9 #include <errno.h> 10 #include <malloc.h> 11 #include <fdtdec.h> 12 #include <fdt_support.h> 13 #include <asm/unaligned.h> 14 #include <asm/io.h> 15 #include <linux/list.h> 16 #include <linux/media-bus-format.h> 17 #include <linux/iopoll.h> 18 #include <clk.h> 19 #include <asm/arch/clock.h> 20 #include <linux/err.h> 21 #include <dm/device.h> 22 #include <dm/read.h> 23 #include <syscon.h> 24 #include <regmap.h> 25 26 #include "rockchip_display.h" 27 #include "rockchip_crtc.h" 28 #include "rockchip_connector.h" 29 #include "rockchip_vop.h" 30 31 static inline int us_to_vertical_line(struct drm_display_mode *mode, int us) 32 { 33 return us * mode->clock / mode->htotal / 1000; 34 } 35 36 static inline void set_vop_mcu_rs(struct vop *vop, int v) 37 { 38 if (dm_gpio_is_valid(&vop->mcu_rs_gpio)) 39 dm_gpio_set_value(&vop->mcu_rs_gpio, v); 40 else 41 VOP_CTRL_SET(vop, mcu_rs, v); 42 } 43 44 static enum vop_csc_format to_vop_csc_mode(enum drm_color_encoding color_encoding, 45 enum drm_color_range color_range) 46 { 47 bool full_range = color_range == DRM_COLOR_YCBCR_FULL_RANGE ? 1 : 0; 48 enum vop_csc_format csc_mode = CSC_BT709L; 49 50 switch (color_encoding) { 51 case DRM_COLOR_YCBCR_BT601: 52 if (full_range) 53 csc_mode = CSC_BT601F; 54 else 55 csc_mode = CSC_BT601L; 56 break; 57 58 case DRM_COLOR_YCBCR_BT709: 59 if (full_range) { 60 csc_mode = CSC_BT601F; 61 printf("Unsupported bt709f at 10bit csc depth, use bt601f instead\n"); 62 } else { 63 csc_mode = CSC_BT709L; 64 } 65 break; 66 67 case DRM_COLOR_YCBCR_BT2020: 68 if (full_range) { 69 csc_mode = CSC_BT601F; 70 printf("Unsupported bt2020f at 10bit csc depth, use bt601f instead\n"); 71 } else { 72 csc_mode = CSC_BT2020L; 73 } 74 break; 75 76 default: 77 printf("Unsuport color_encoding:%d\n", color_encoding); 78 } 79 80 return csc_mode; 81 } 82 83 static bool is_yuv_output(uint32_t bus_format) 84 { 85 switch (bus_format) { 86 case MEDIA_BUS_FMT_YUV8_1X24: 87 case MEDIA_BUS_FMT_YUV10_1X30: 88 case MEDIA_BUS_FMT_UYYVYY8_0_5X24: 89 case MEDIA_BUS_FMT_UYYVYY10_0_5X30: 90 case MEDIA_BUS_FMT_YUYV8_2X8: 91 case MEDIA_BUS_FMT_YVYU8_2X8: 92 case MEDIA_BUS_FMT_UYVY8_2X8: 93 case MEDIA_BUS_FMT_VYUY8_2X8: 94 case MEDIA_BUS_FMT_YUYV8_1X16: 95 case MEDIA_BUS_FMT_YVYU8_1X16: 96 case MEDIA_BUS_FMT_UYVY8_1X16: 97 case MEDIA_BUS_FMT_VYUY8_1X16: 98 return true; 99 default: 100 return false; 101 } 102 } 103 104 static bool is_uv_swap(uint32_t bus_format, uint32_t output_mode) 105 { 106 /* 107 * FIXME: 108 * 109 * There is no media type for YUV444 output, 110 * so when out_mode is AAAA or P888, assume output is YUV444 on 111 * yuv format. 112 * 113 * From H/W testing, YUV444 mode need a rb swap. 114 */ 115 if ((bus_format == MEDIA_BUS_FMT_YUV8_1X24 || 116 bus_format == MEDIA_BUS_FMT_YUV10_1X30) && 117 (output_mode == ROCKCHIP_OUT_MODE_AAAA || 118 output_mode == ROCKCHIP_OUT_MODE_P888)) 119 return true; 120 else 121 return false; 122 } 123 124 static bool is_rb_swap(uint32_t bus_format, uint32_t output_mode) 125 { 126 /* 127 * The default component order of serial rgb3x8 formats 128 * is BGR. So it is needed to enable RB swap. 129 */ 130 if (bus_format == MEDIA_BUS_FMT_RGB888_3X8 || 131 bus_format == MEDIA_BUS_FMT_RGB888_DUMMY_4X8) 132 return true; 133 else 134 return false; 135 } 136 137 static bool is_yc_swap(uint32_t bus_format) 138 { 139 switch (bus_format) { 140 case MEDIA_BUS_FMT_YUYV8_1X16: 141 case MEDIA_BUS_FMT_YVYU8_1X16: 142 case MEDIA_BUS_FMT_YUYV8_2X8: 143 case MEDIA_BUS_FMT_YVYU8_2X8: 144 return true; 145 default: 146 return false; 147 } 148 } 149 150 static int rockchip_vop_init_gamma(struct vop *vop, struct display_state *state) 151 { 152 struct crtc_state *crtc_state = &state->crtc_state; 153 struct connector_state *conn_state = &state->conn_state; 154 u32 *lut = conn_state->gamma.lut; 155 fdt_size_t lut_size; 156 int i, lut_len; 157 u32 *lut_regs; 158 159 if (!conn_state->gamma.lut) 160 return 0; 161 162 i = dev_read_stringlist_search(crtc_state->dev, "reg-names", "gamma_lut"); 163 if (i < 0) { 164 printf("Warning: vop not support gamma\n"); 165 return 0; 166 } 167 lut_regs = (u32 *)dev_read_addr_size(crtc_state->dev, "reg", &lut_size); 168 if (lut_regs == (u32 *)FDT_ADDR_T_NONE) { 169 printf("failed to get gamma lut register\n"); 170 return 0; 171 } 172 lut_len = lut_size / 4; 173 if (lut_len != 256 && lut_len != 1024) { 174 printf("Warning: unsupport gamma lut table[%d]\n", lut_len); 175 return 0; 176 } 177 178 if (conn_state->gamma.size != lut_len) { 179 int size = conn_state->gamma.size; 180 u32 j, r, g, b, color; 181 182 for (i = 0; i < lut_len; i++) { 183 j = i * size / lut_len; 184 r = lut[j] / size / size * lut_len / size; 185 g = lut[j] / size % size * lut_len / size; 186 b = lut[j] % size * lut_len / size; 187 color = r * lut_len * lut_len + g * lut_len + b; 188 189 writel(color, lut_regs + (i << 2)); 190 } 191 } else { 192 for (i = 0; i < lut_len; i++) 193 writel(lut[i], lut_regs + (i << 2)); 194 } 195 196 VOP_CTRL_SET(vop, dsp_lut_en, 1); 197 VOP_CTRL_SET(vop, update_gamma_lut, 1); 198 199 return 0; 200 } 201 202 static void vop_post_config(struct display_state *state, struct vop *vop) 203 { 204 struct connector_state *conn_state = &state->conn_state; 205 struct drm_display_mode *mode = &conn_state->mode; 206 u16 vtotal = mode->crtc_vtotal; 207 u16 hact_st = mode->crtc_htotal - mode->crtc_hsync_start; 208 u16 vact_st = mode->crtc_vtotal - mode->crtc_vsync_start; 209 u16 hdisplay = mode->crtc_hdisplay; 210 u16 vdisplay = mode->crtc_vdisplay; 211 u16 hsize = hdisplay * (conn_state->overscan.left_margin + conn_state->overscan.right_margin) / 200; 212 u16 vsize = vdisplay * (conn_state->overscan.top_margin + conn_state->overscan.bottom_margin) / 200; 213 u16 hact_end, vact_end; 214 u32 val; 215 216 if (mode->flags & DRM_MODE_FLAG_INTERLACE) 217 vsize = round_down(vsize, 2); 218 219 hact_st += hdisplay * (100 - conn_state->overscan.left_margin) / 200; 220 hact_end = hact_st + hsize; 221 val = hact_st << 16; 222 val |= hact_end; 223 224 VOP_CTRL_SET(vop, hpost_st_end, val); 225 vact_st += vdisplay * (100 - conn_state->overscan.top_margin) / 200; 226 vact_end = vact_st + vsize; 227 val = vact_st << 16; 228 val |= vact_end; 229 VOP_CTRL_SET(vop, vpost_st_end, val); 230 val = scl_cal_scale2(vdisplay, vsize) << 16; 231 val |= scl_cal_scale2(hdisplay, hsize); 232 VOP_CTRL_SET(vop, post_scl_factor, val); 233 #define POST_HORIZONTAL_SCALEDOWN_EN(x) ((x) << 0) 234 #define POST_VERTICAL_SCALEDOWN_EN(x) ((x) << 1) 235 VOP_CTRL_SET(vop, post_scl_ctrl, 236 POST_HORIZONTAL_SCALEDOWN_EN(hdisplay != hsize) | 237 POST_VERTICAL_SCALEDOWN_EN(vdisplay != vsize)); 238 if (mode->flags & DRM_MODE_FLAG_INTERLACE) { 239 u16 vact_st_f1 = vtotal + vact_st + 1; 240 u16 vact_end_f1 = vact_st_f1 + vsize; 241 242 val = vact_st_f1 << 16 | vact_end_f1; 243 VOP_CTRL_SET(vop, vpost_st_end_f1, val); 244 } 245 } 246 247 static void vop_mcu_bypass_mode_setup(struct display_state *state, struct vop *vop) 248 { 249 /* 250 * If mcu_hold_mode is 1, set 1 to mcu_frame_st will 251 * refresh one frame from ddr. So mcu_frame_st is needed 252 * to be initialized as 0. 253 */ 254 VOP_CTRL_SET(vop, mcu_frame_st, 0); 255 VOP_CTRL_SET(vop, mcu_clk_sel, 1); 256 VOP_CTRL_SET(vop, mcu_type, 1); 257 258 VOP_CTRL_SET(vop, mcu_hold_mode, 1); 259 VOP_CTRL_SET(vop, mcu_pix_total, 53); 260 VOP_CTRL_SET(vop, mcu_cs_pst, 6); 261 VOP_CTRL_SET(vop, mcu_cs_pend, 48); 262 VOP_CTRL_SET(vop, mcu_rw_pst, 12); 263 VOP_CTRL_SET(vop, mcu_rw_pend, 30); 264 } 265 266 static void vop_mcu_mode_setup(struct display_state *state, struct vop *vop) 267 { 268 struct crtc_state *crtc_state = &state->crtc_state; 269 270 /* 271 * If mcu_hold_mode is 1, set 1 to mcu_frame_st will 272 * refresh one frame from ddr. So mcu_frame_st is needed 273 * to be initialized as 0. 274 */ 275 VOP_CTRL_SET(vop, mcu_frame_st, 0); 276 VOP_CTRL_SET(vop, mcu_clk_sel, 1); 277 VOP_CTRL_SET(vop, mcu_type, 1); 278 279 VOP_CTRL_SET(vop, mcu_hold_mode, 1); 280 VOP_CTRL_SET(vop, mcu_pix_total, crtc_state->mcu_timing.mcu_pix_total); 281 VOP_CTRL_SET(vop, mcu_cs_pst, crtc_state->mcu_timing.mcu_cs_pst); 282 VOP_CTRL_SET(vop, mcu_cs_pend, crtc_state->mcu_timing.mcu_cs_pend); 283 VOP_CTRL_SET(vop, mcu_rw_pst, crtc_state->mcu_timing.mcu_rw_pst); 284 VOP_CTRL_SET(vop, mcu_rw_pend, crtc_state->mcu_timing.mcu_rw_pend); 285 } 286 287 static int rockchip_vop_preinit(struct display_state *state) 288 { 289 const struct vop_data *vop_data = state->crtc_state.crtc->data; 290 291 state->crtc_state.max_output = vop_data->max_output; 292 293 return 0; 294 } 295 296 static u32 vop_mode_done(struct vop *vop) 297 { 298 return VOP_CTRL_GET(vop, out_mode); 299 } 300 301 static void vop_set_out_mode(struct vop *vop, u32 mode) 302 { 303 int ret; 304 u32 val; 305 306 VOP_CTRL_SET(vop, out_mode, mode); 307 vop_cfg_done(vop); 308 ret = readx_poll_timeout(vop_mode_done, vop, val, val == mode, 1000 * 1000); 309 if (ret) 310 printf("wait for setting mode 0x%x timeout\n", mode); 311 } 312 313 static int rockchip_vop_init(struct display_state *state) 314 { 315 struct crtc_state *crtc_state = &state->crtc_state; 316 struct connector_state *conn_state = &state->conn_state; 317 struct drm_display_mode *mode = &conn_state->mode; 318 const struct rockchip_crtc *crtc = crtc_state->crtc; 319 const struct vop_data *vop_data = crtc->data; 320 struct vop *vop; 321 struct regmap *map; 322 u16 hsync_len = mode->crtc_hsync_end - mode->crtc_hsync_start; 323 u16 hdisplay = mode->crtc_hdisplay; 324 u16 htotal = mode->crtc_htotal; 325 u16 hact_st = mode->crtc_htotal - mode->crtc_hsync_start; 326 u16 hact_end = hact_st + hdisplay; 327 u16 vdisplay = mode->crtc_vdisplay; 328 u16 vtotal = mode->crtc_vtotal; 329 u16 vsync_len = mode->crtc_vsync_end - mode->crtc_vsync_start; 330 u16 vact_st = mode->crtc_vtotal - mode->crtc_vsync_start; 331 u16 vact_end = vact_st + vdisplay; 332 u32 val, act_end; 333 int ret; 334 bool yuv_overlay = false, post_r2y_en = false, post_y2r_en = false; 335 u16 post_csc_mode; 336 bool dclk_inv, yc_swap = false; 337 char output_type_name[30] = {0}; 338 339 vop = malloc(sizeof(*vop)); 340 if (!vop) 341 return -ENOMEM; 342 memset(vop, 0, sizeof(*vop)); 343 344 crtc_state->private = vop; 345 vop->data = vop_data; 346 vop->regs = dev_read_addr_ptr(crtc_state->dev); 347 vop->regsbak = malloc(vop_data->reg_len); 348 vop->win = vop_data->win; 349 vop->win_offset = vop_data->win_offset; 350 vop->ctrl = vop_data->ctrl; 351 352 map = syscon_regmap_lookup_by_phandle(crtc_state->dev, "rockchip,grf"); 353 if (!IS_ERR_OR_NULL(map)) { 354 vop->grf_ctrl = regmap_get_range(map, 0); 355 if (vop->grf_ctrl <= 0) 356 printf("%s: Get syscon grf failed (ret=%p)\n", __func__, vop->grf_ctrl); 357 } 358 map = syscon_regmap_lookup_by_phandle(crtc_state->dev, "rockchip,vo0-grf"); 359 if (!IS_ERR_OR_NULL(map)) { 360 vop->vo0_grf_ctrl = regmap_get_range(map, 0); 361 if (vop->vo0_grf_ctrl <= 0) 362 printf("%s: Get syscon vo0_grf failed (ret=%p)\n", __func__, vop->vo0_grf_ctrl); 363 } 364 365 vop->line_flag = vop_data->line_flag; 366 vop->csc_table = vop_data->csc_table; 367 vop->win_csc = vop_data->win_csc; 368 vop->version = vop_data->version; 369 370 printf("VOP:0x%8p update mode to: %dx%d%s%d, type:%s\n", 371 vop->regs, mode->crtc_hdisplay, mode->vdisplay, 372 mode->flags & DRM_MODE_FLAG_INTERLACE ? "i" : "p", 373 drm_mode_vrefresh(mode), 374 rockchip_get_output_if_name(conn_state->output_if, output_type_name)); 375 376 /* Process 'assigned-{clocks/clock-parents/clock-rates}' properties */ 377 ret = clk_set_defaults(crtc_state->dev); 378 if (ret) 379 debug("%s clk_set_defaults failed %d\n", __func__, ret); 380 381 ret = clk_get_by_name(crtc_state->dev, "dclk_vop", &crtc_state->dclk); 382 if (!ret) 383 ret = clk_set_rate(&crtc_state->dclk, mode->crtc_clock * 1000); 384 if (IS_ERR_VALUE(ret)) { 385 printf("%s: Failed to set dclk: ret=%d\n", __func__, ret); 386 return ret; 387 } 388 printf("VOP:0x%8p set crtc_clock to %dKHz, get %dHz\n", vop->regs, mode->crtc_clock, ret); 389 390 memcpy(vop->regsbak, vop->regs, vop_data->reg_len); 391 392 rockchip_vop_init_gamma(vop, state); 393 394 ret = gpio_request_by_name(crtc_state->dev, "mcu-rs-gpios", 395 0, &vop->mcu_rs_gpio, GPIOD_IS_OUT); 396 if (ret && ret != -ENOENT) 397 printf("%s: Cannot get mcu rs GPIO: %d\n", __func__, ret); 398 399 VOP_CTRL_SET(vop, global_regdone_en, 1); 400 VOP_CTRL_SET(vop, axi_outstanding_max_num, 30); 401 VOP_CTRL_SET(vop, axi_max_outstanding_en, 1); 402 VOP_CTRL_SET(vop, reg_done_frm, 1); 403 VOP_CTRL_SET(vop, win_gate[0], 1); 404 VOP_CTRL_SET(vop, win_gate[1], 1); 405 VOP_CTRL_SET(vop, win_channel[0], 0x12); 406 VOP_CTRL_SET(vop, win_channel[1], 0x34); 407 VOP_CTRL_SET(vop, win_channel[2], 0x56); 408 VOP_CTRL_SET(vop, dsp_blank, 0); 409 410 if (vop->version == VOP_VERSION(2, 0xd)) { 411 VOP_GRF_SET(vop, grf_ctrl, grf_vopl_sel, 1); 412 VOP_CTRL_SET(vop, enable, 1); 413 } 414 415 dclk_inv = (conn_state->bus_flags & DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE) ? 1 : 0; 416 /* For improving signal quality, dclk need to be inverted by default on rv1106. */ 417 if ((VOP_MAJOR(vop->version) == 2 && VOP_MINOR(vop->version) == 12)) 418 dclk_inv = !dclk_inv; 419 VOP_CTRL_SET(vop, dclk_pol, dclk_inv); 420 421 val = 0x8; 422 val |= (mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1; 423 val |= (mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : (1 << 1); 424 VOP_CTRL_SET(vop, pin_pol, val); 425 426 switch (conn_state->type) { 427 case DRM_MODE_CONNECTOR_LVDS: 428 VOP_CTRL_SET(vop, rgb_en, 1); 429 VOP_CTRL_SET(vop, rgb_pin_pol, val); 430 VOP_CTRL_SET(vop, rgb_dclk_pol, dclk_inv); 431 VOP_CTRL_SET(vop, lvds_en, 1); 432 VOP_CTRL_SET(vop, lvds_pin_pol, val); 433 VOP_CTRL_SET(vop, lvds_dclk_pol, dclk_inv); 434 if (!IS_ERR_OR_NULL(vop->grf_ctrl)) 435 VOP_GRF_SET(vop, grf_ctrl, grf_dclk_inv, dclk_inv); 436 if (conn_state->output_if & VOP_OUTPUT_IF_BT1120) { 437 VOP_CTRL_SET(vop, bt1120_en, 1); 438 yc_swap = is_yc_swap(conn_state->bus_format); 439 VOP_CTRL_SET(vop, bt1120_yc_swap, yc_swap); 440 VOP_CTRL_SET(vop, yuv_clip, 1); 441 } else if (conn_state->output_if & VOP_OUTPUT_IF_BT656) { 442 VOP_CTRL_SET(vop, bt656_en, 1); 443 yc_swap = is_yc_swap(conn_state->bus_format); 444 VOP_CTRL_SET(vop, bt1120_yc_swap, yc_swap); 445 } 446 break; 447 case DRM_MODE_CONNECTOR_eDP: 448 VOP_CTRL_SET(vop, edp_en, 1); 449 VOP_CTRL_SET(vop, edp_pin_pol, val); 450 VOP_CTRL_SET(vop, edp_dclk_pol, dclk_inv); 451 VOP_CTRL_SET(vop, inf_out_en, 1); 452 VOP_CTRL_SET(vop, out_dresetn, 1); 453 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_edp_ch_sel, 1); 454 break; 455 case DRM_MODE_CONNECTOR_HDMIA: 456 VOP_CTRL_SET(vop, hdmi_en, 1); 457 VOP_CTRL_SET(vop, hdmi_pin_pol, val); 458 VOP_CTRL_SET(vop, hdmi_dclk_pol, 1); 459 VOP_CTRL_SET(vop, inf_out_en, 1); 460 VOP_CTRL_SET(vop, out_dresetn, 1); 461 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_hdmi_ch_sel, 1); 462 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_hdmi_pin_pol, val); 463 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_hdmi_1to4_en, 1); 464 break; 465 case DRM_MODE_CONNECTOR_DSI: 466 /* 467 * RK3576 DSI CTRL hsync/vsync polarity is positive and can't update, 468 * so set VOP hsync/vsync polarity as positive by default. 469 */ 470 if (vop->version == VOP_VERSION(2, 0xd)) 471 val = BIT(HSYNC_POSITIVE) | BIT(VSYNC_POSITIVE); 472 VOP_CTRL_SET(vop, mipi_en, 1); 473 VOP_CTRL_SET(vop, mipi_pin_pol, val); 474 VOP_CTRL_SET(vop, mipi_dclk_pol, dclk_inv); 475 VOP_CTRL_SET(vop, mipi_dual_channel_en, 476 !!(conn_state->output_flags & ROCKCHIP_OUTPUT_DUAL_CHANNEL_LEFT_RIGHT_MODE)); 477 VOP_CTRL_SET(vop, data01_swap, 478 !!(conn_state->output_flags & ROCKCHIP_OUTPUT_DATA_SWAP) || 479 crtc_state->dual_channel_swap); 480 VOP_CTRL_SET(vop, inf_out_en, 1); 481 VOP_CTRL_SET(vop, out_dresetn, 1); 482 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_mipi_ch_sel, 1); 483 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_mipi_mode, 0); 484 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_mipi_pin_pol, val); 485 VOP_GRF_SET(vop, vo0_grf_ctrl, grf_mipi_1to4_en, 1); 486 break; 487 case DRM_MODE_CONNECTOR_DisplayPort: 488 VOP_CTRL_SET(vop, dp_dclk_pol, 0); 489 VOP_CTRL_SET(vop, dp_pin_pol, val); 490 VOP_CTRL_SET(vop, dp_en, 1); 491 break; 492 case DRM_MODE_CONNECTOR_TV: 493 if (vdisplay == CVBS_PAL_VDISPLAY) 494 VOP_CTRL_SET(vop, tve_sw_mode, 1); 495 else 496 VOP_CTRL_SET(vop, tve_sw_mode, 0); 497 VOP_CTRL_SET(vop, tve_dclk_pol, 1); 498 VOP_CTRL_SET(vop, tve_dclk_en, 1); 499 /* use the same pol reg with hdmi */ 500 VOP_CTRL_SET(vop, hdmi_pin_pol, val); 501 VOP_CTRL_SET(vop, sw_genlock, 1); 502 VOP_CTRL_SET(vop, sw_uv_offset_en, 1); 503 VOP_CTRL_SET(vop, dither_up, 1); 504 break; 505 default: 506 printf("unsupport connector_type[%d]\n", conn_state->type); 507 } 508 509 if ((conn_state->output_mode == ROCKCHIP_OUT_MODE_AAAA && 510 !(vop_data->feature & VOP_FEATURE_OUTPUT_10BIT)) || 511 (VOP_MAJOR(vop->version) == 2 && VOP_MINOR(vop->version) >= 12 && 512 conn_state->output_if & VOP_OUTPUT_IF_BT656)) 513 conn_state->output_mode = ROCKCHIP_OUT_MODE_P888; 514 515 switch (conn_state->bus_format) { 516 case MEDIA_BUS_FMT_RGB565_1X16: 517 val = DITHER_DOWN_EN(1) | DITHER_DOWN_MODE(RGB888_TO_RGB565); 518 break; 519 case MEDIA_BUS_FMT_RGB666_1X18: 520 case MEDIA_BUS_FMT_RGB666_1X24_CPADHI: 521 case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: 522 case MEDIA_BUS_FMT_RGB666_1X7X3_JEIDA: 523 val = DITHER_DOWN_EN(1) | DITHER_DOWN_MODE(RGB888_TO_RGB666); 524 break; 525 case MEDIA_BUS_FMT_YUV8_1X24: 526 case MEDIA_BUS_FMT_UYYVYY8_0_5X24: 527 val = DITHER_DOWN_EN(0) | PRE_DITHER_DOWN_EN(1); 528 break; 529 case MEDIA_BUS_FMT_YUV10_1X30: 530 case MEDIA_BUS_FMT_UYYVYY10_0_5X30: 531 val = DITHER_DOWN_EN(0) | PRE_DITHER_DOWN_EN(0); 532 break; 533 case MEDIA_BUS_FMT_RGB888_1X24: 534 case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: 535 case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: 536 default: 537 val = DITHER_DOWN_EN(0) | PRE_DITHER_DOWN_EN(0); 538 break; 539 } 540 if (conn_state->output_mode == ROCKCHIP_OUT_MODE_AAAA) 541 val |= PRE_DITHER_DOWN_EN(0); 542 else 543 val |= PRE_DITHER_DOWN_EN(1); 544 val |= DITHER_DOWN_MODE_SEL(DITHER_DOWN_ALLEGRO); 545 VOP_CTRL_SET(vop, dither_down, val); 546 547 VOP_CTRL_SET(vop, dclk_ddr, 548 conn_state->output_mode == ROCKCHIP_OUT_MODE_YUV420 ? 1 : 0); 549 VOP_CTRL_SET(vop, hdmi_dclk_out_en, 550 conn_state->output_mode == ROCKCHIP_OUT_MODE_YUV420 ? 1 : 0); 551 552 if (is_uv_swap(conn_state->bus_format, conn_state->output_mode) || 553 is_rb_swap(conn_state->bus_format, conn_state->output_mode)) 554 VOP_CTRL_SET(vop, dsp_rb_swap, 1); 555 else 556 VOP_CTRL_SET(vop, dsp_data_swap, 0); 557 558 /* 559 * For RK3576 vopl, rg_swap and rb_swap need to be enabled in 560 * YUV444 bus_format. 561 */ 562 if (VOP_MAJOR(vop->version) == 2 && VOP_MINOR(vop->version) == 0xd) { 563 if (conn_state->bus_format == MEDIA_BUS_FMT_YUV8_1X24) 564 VOP_CTRL_SET(vop, dsp_data_swap, DSP_RG_SWAP | DSP_RB_SWAP); 565 } 566 567 VOP_CTRL_SET(vop, out_mode, conn_state->output_mode); 568 569 if (VOP_CTRL_SUPPORT(vop, overlay_mode)) { 570 yuv_overlay = is_yuv_output(conn_state->bus_format); 571 VOP_CTRL_SET(vop, overlay_mode, yuv_overlay); 572 } 573 /* 574 * todo: r2y for win csc 575 */ 576 VOP_CTRL_SET(vop, dsp_out_yuv, is_yuv_output(conn_state->bus_format)); 577 578 if (yuv_overlay) { 579 if (!is_yuv_output(conn_state->bus_format)) 580 post_y2r_en = true; 581 } else { 582 if (is_yuv_output(conn_state->bus_format)) 583 post_r2y_en = true; 584 } 585 586 crtc_state->yuv_overlay = yuv_overlay; 587 post_csc_mode = to_vop_csc_mode(conn_state->color_encoding, conn_state->color_range); 588 VOP_CTRL_SET(vop, bcsh_r2y_en, post_r2y_en); 589 VOP_CTRL_SET(vop, bcsh_y2r_en, post_y2r_en); 590 VOP_CTRL_SET(vop, bcsh_r2y_csc_mode, post_csc_mode); 591 VOP_CTRL_SET(vop, bcsh_y2r_csc_mode, post_csc_mode); 592 593 /* 594 * Background color is 10bit depth if vop version >= 3.5 595 */ 596 if (!is_yuv_output(conn_state->bus_format)) 597 val = 0; 598 else if (vop->version == VOP_VERSION(2, 0xd)) 599 val = 0; 600 else if (VOP_MAJOR(vop->version) == 3 && 601 VOP_MINOR(vop->version) >= 5) 602 val = 0x20010200; 603 else 604 val = 0x801080; 605 VOP_CTRL_SET(vop, dsp_background, val); 606 607 VOP_CTRL_SET(vop, htotal_pw, (htotal << 16) | hsync_len); 608 val = hact_st << 16; 609 val |= hact_end; 610 VOP_CTRL_SET(vop, hact_st_end, val); 611 val = vact_st << 16; 612 val |= vact_end; 613 VOP_CTRL_SET(vop, vact_st_end, val); 614 if (mode->flags & DRM_MODE_FLAG_INTERLACE) { 615 u16 vact_st_f1 = vtotal + vact_st + 1; 616 u16 vact_end_f1 = vact_st_f1 + vdisplay; 617 618 val = vact_st_f1 << 16 | vact_end_f1; 619 VOP_CTRL_SET(vop, vact_st_end_f1, val); 620 621 val = vtotal << 16 | (vtotal + vsync_len); 622 VOP_CTRL_SET(vop, vs_st_end_f1, val); 623 VOP_CTRL_SET(vop, dsp_interlace, 1); 624 VOP_CTRL_SET(vop, p2i_en, 1); 625 vtotal += vtotal + 1; 626 act_end = vact_end_f1; 627 } else { 628 VOP_CTRL_SET(vop, dsp_interlace, 0); 629 VOP_CTRL_SET(vop, p2i_en, 0); 630 act_end = vact_end; 631 } 632 VOP_CTRL_SET(vop, vtotal_pw, (vtotal << 16) | vsync_len); 633 vop_post_config(state, vop); 634 VOP_CTRL_SET(vop, core_dclk_div, 635 !!(mode->flags & DRM_MODE_FLAG_DBLCLK) || 636 conn_state->output_if & VOP_OUTPUT_IF_BT656); 637 638 VOP_LINE_FLAG_SET(vop, line_flag_num[0], act_end - 3); 639 VOP_LINE_FLAG_SET(vop, line_flag_num[1], 640 act_end - us_to_vertical_line(mode, 1000)); 641 642 if (state->crtc_state.mcu_timing.mcu_pix_total > 0) { 643 if (vop->version >= VOP_VERSION(2, 0xd)) { 644 VOP_CTRL_SET(vop, standby, 0); 645 vop_set_out_mode(vop, conn_state->output_mode); 646 } 647 vop_mcu_mode_setup(state, vop); 648 } 649 650 vop_cfg_done(vop); 651 652 return 0; 653 } 654 655 static uint16_t scl_vop_cal_scale(enum scale_mode mode, uint32_t src, 656 uint32_t dst, bool is_horizontal, 657 int vsu_mode, int *vskiplines) 658 { 659 uint16_t val = 1 << SCL_FT_DEFAULT_FIXPOINT_SHIFT; 660 661 if (is_horizontal) { 662 if (mode == SCALE_UP) 663 val = GET_SCL_FT_BIC(src, dst); 664 else if (mode == SCALE_DOWN) 665 val = GET_SCL_FT_BILI_DN(src, dst); 666 } else { 667 if (mode == SCALE_UP) { 668 if (vsu_mode == SCALE_UP_BIL) 669 val = GET_SCL_FT_BILI_UP(src, dst); 670 else 671 val = GET_SCL_FT_BIC(src, dst); 672 } else if (mode == SCALE_DOWN) { 673 if (vskiplines) { 674 *vskiplines = scl_get_vskiplines(src, dst); 675 val = scl_get_bili_dn_vskip(src, dst, 676 *vskiplines); 677 } else { 678 val = GET_SCL_FT_BILI_DN(src, dst); 679 } 680 } 681 } 682 683 return val; 684 } 685 686 static void scl_vop_cal_scl_fac(struct vop *vop, 687 uint32_t src_w, uint32_t src_h, uint32_t dst_w, 688 uint32_t dst_h, uint32_t pixel_format) 689 { 690 uint16_t yrgb_hor_scl_mode, yrgb_ver_scl_mode; 691 uint16_t cbcr_hor_scl_mode = SCALE_NONE; 692 uint16_t cbcr_ver_scl_mode = SCALE_NONE; 693 int hsub = drm_format_horz_chroma_subsampling(pixel_format); 694 int vsub = drm_format_vert_chroma_subsampling(pixel_format); 695 bool is_yuv = false; 696 uint16_t cbcr_src_w = src_w / hsub; 697 uint16_t cbcr_src_h = src_h / vsub; 698 uint16_t vsu_mode; 699 uint16_t lb_mode; 700 uint32_t val; 701 int vskiplines = 0; 702 703 if (!vop->win->scl) 704 return; 705 706 if (!vop->win->scl->ext) { 707 VOP_SCL_SET(vop, scale_yrgb_x, 708 scl_cal_scale2(src_w, dst_w)); 709 VOP_SCL_SET(vop, scale_yrgb_y, 710 scl_cal_scale2(src_h, dst_h)); 711 if (is_yuv) { 712 VOP_SCL_SET(vop, scale_cbcr_x, 713 scl_cal_scale2(src_w, dst_w)); 714 VOP_SCL_SET(vop, scale_cbcr_y, 715 scl_cal_scale2(src_h, dst_h)); 716 } 717 return; 718 } 719 720 yrgb_hor_scl_mode = scl_get_scl_mode(src_w, dst_w); 721 yrgb_ver_scl_mode = scl_get_scl_mode(src_h, dst_h); 722 723 if (is_yuv) { 724 cbcr_hor_scl_mode = scl_get_scl_mode(cbcr_src_w, dst_w); 725 cbcr_ver_scl_mode = scl_get_scl_mode(cbcr_src_h, dst_h); 726 if (cbcr_hor_scl_mode == SCALE_DOWN) 727 lb_mode = scl_vop_cal_lb_mode(dst_w, true); 728 else 729 lb_mode = scl_vop_cal_lb_mode(cbcr_src_w, true); 730 } else { 731 if (yrgb_hor_scl_mode == SCALE_DOWN) 732 lb_mode = scl_vop_cal_lb_mode(dst_w, false); 733 else 734 lb_mode = scl_vop_cal_lb_mode(src_w, false); 735 } 736 737 VOP_SCL_SET_EXT(vop, lb_mode, lb_mode); 738 if (lb_mode == LB_RGB_3840X2) { 739 if (yrgb_ver_scl_mode != SCALE_NONE) { 740 printf("ERROR : not allow yrgb ver scale\n"); 741 return; 742 } 743 if (cbcr_ver_scl_mode != SCALE_NONE) { 744 printf("ERROR : not allow cbcr ver scale\n"); 745 return; 746 } 747 vsu_mode = SCALE_UP_BIL; 748 } else if (lb_mode == LB_RGB_2560X4) { 749 vsu_mode = SCALE_UP_BIL; 750 } else { 751 vsu_mode = SCALE_UP_BIC; 752 } 753 754 val = scl_vop_cal_scale(yrgb_hor_scl_mode, src_w, dst_w, 755 true, 0, NULL); 756 VOP_SCL_SET(vop, scale_yrgb_x, val); 757 val = scl_vop_cal_scale(yrgb_ver_scl_mode, src_h, dst_h, 758 false, vsu_mode, &vskiplines); 759 VOP_SCL_SET(vop, scale_yrgb_y, val); 760 761 VOP_SCL_SET_EXT(vop, vsd_yrgb_gt4, vskiplines == 4); 762 VOP_SCL_SET_EXT(vop, vsd_yrgb_gt2, vskiplines == 2); 763 764 VOP_SCL_SET_EXT(vop, yrgb_hor_scl_mode, yrgb_hor_scl_mode); 765 VOP_SCL_SET_EXT(vop, yrgb_ver_scl_mode, yrgb_ver_scl_mode); 766 VOP_SCL_SET_EXT(vop, yrgb_hsd_mode, SCALE_DOWN_BIL); 767 VOP_SCL_SET_EXT(vop, yrgb_vsd_mode, SCALE_DOWN_BIL); 768 VOP_SCL_SET_EXT(vop, yrgb_vsu_mode, vsu_mode); 769 if (is_yuv) { 770 val = scl_vop_cal_scale(cbcr_hor_scl_mode, cbcr_src_w, 771 dst_w, true, 0, NULL); 772 VOP_SCL_SET(vop, scale_cbcr_x, val); 773 val = scl_vop_cal_scale(cbcr_ver_scl_mode, cbcr_src_h, 774 dst_h, false, vsu_mode, &vskiplines); 775 VOP_SCL_SET(vop, scale_cbcr_y, val); 776 777 VOP_SCL_SET_EXT(vop, vsd_cbcr_gt4, vskiplines == 4); 778 VOP_SCL_SET_EXT(vop, vsd_cbcr_gt2, vskiplines == 2); 779 VOP_SCL_SET_EXT(vop, cbcr_hor_scl_mode, cbcr_hor_scl_mode); 780 VOP_SCL_SET_EXT(vop, cbcr_ver_scl_mode, cbcr_ver_scl_mode); 781 VOP_SCL_SET_EXT(vop, cbcr_hsd_mode, SCALE_DOWN_BIL); 782 VOP_SCL_SET_EXT(vop, cbcr_vsd_mode, SCALE_DOWN_BIL); 783 VOP_SCL_SET_EXT(vop, cbcr_vsu_mode, vsu_mode); 784 } 785 } 786 787 static void vop_load_csc_table(struct vop *vop, u32 offset, const u32 *table) 788 { 789 int i; 790 791 /* 792 * so far the csc offset is not 0 and in the feature the csc offset 793 * impossible be 0, so when the offset is 0, should return here. 794 */ 795 if (!table || offset == 0) 796 return; 797 798 for (i = 0; i < 8; i++) 799 vop_writel(vop, offset + i * 4, table[i]); 800 } 801 802 static int rockchip_vop_setup_csc_table(struct display_state *state) 803 { 804 struct crtc_state *crtc_state = &state->crtc_state; 805 struct connector_state *conn_state = &state->conn_state; 806 struct vop *vop = crtc_state->private; 807 const uint32_t *csc_table = NULL; 808 809 if (!vop->csc_table || !crtc_state->yuv_overlay) 810 return 0; 811 /* todo: only implement r2y*/ 812 switch (conn_state->color_encoding) { 813 case DRM_COLOR_YCBCR_BT601: 814 if (conn_state->color_range == DRM_COLOR_YCBCR_LIMITED_RANGE) 815 csc_table = vop->csc_table->r2y_bt601_12_235; /* bt601 limit */ 816 else 817 csc_table = vop->csc_table->r2y_bt601; /* bt601 full */ 818 break; 819 case DRM_COLOR_YCBCR_BT709: 820 csc_table = vop->csc_table->r2y_bt709; 821 break; 822 case DRM_COLOR_YCBCR_BT2020: 823 csc_table = vop->csc_table->r2y_bt2020; 824 break; 825 default: 826 csc_table = vop->csc_table->r2y_bt601; /* bt601 full */ 827 break; 828 } 829 830 vop_load_csc_table(vop, vop->win_csc->r2y_offset, csc_table); 831 VOP_WIN_CSC_SET(vop, r2y_en, 1); 832 833 return 0; 834 } 835 836 static int rockchip_vop_set_plane(struct display_state *state) 837 { 838 struct crtc_state *crtc_state = &state->crtc_state; 839 const struct rockchip_crtc *crtc = crtc_state->crtc; 840 const struct vop_data *vop_data = crtc->data; 841 struct connector_state *conn_state = &state->conn_state; 842 struct drm_display_mode *mode = &conn_state->mode; 843 u32 act_info, dsp_info, dsp_st, dsp_stx, dsp_sty; 844 struct vop *vop = crtc_state->private; 845 int src_w = crtc_state->src_rect.w; 846 int src_h = crtc_state->src_rect.h; 847 int crtc_x = crtc_state->crtc_rect.x; 848 int crtc_y = crtc_state->crtc_rect.y; 849 int crtc_w = crtc_state->crtc_rect.w; 850 int crtc_h = crtc_state->crtc_rect.h; 851 int xvir = crtc_state->xvir; 852 int x_mirror = 0, y_mirror = 0; 853 854 if (crtc_w > crtc_state->max_output.width) { 855 printf("ERROR: output w[%d] exceeded max width[%d]\n", 856 crtc_w, crtc_state->max_output.width); 857 return -EINVAL; 858 } 859 860 if ((vop->version == VOP_VERSION(2, 2) || vop->version >= VOP_VERSION(2, 0xd)) && 861 (mode->flags & DRM_MODE_FLAG_INTERLACE)) 862 crtc_h = crtc_h / 2; 863 864 act_info = (src_h - 1) << 16; 865 act_info |= (src_w - 1) & 0xffff; 866 867 dsp_info = (crtc_h - 1) << 16; 868 dsp_info |= (crtc_w - 1) & 0xffff; 869 870 dsp_stx = crtc_x + mode->crtc_htotal - mode->crtc_hsync_start; 871 dsp_sty = crtc_y + mode->crtc_vtotal - mode->crtc_vsync_start; 872 if ((vop->version == VOP_VERSION(2, 2) || vop->version >= VOP_VERSION(2, 0xd)) && 873 (mode->flags & DRM_MODE_FLAG_INTERLACE)) 874 dsp_sty = crtc_y / 2 + mode->crtc_vtotal - mode->crtc_vsync_start; 875 dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff); 876 /* 877 * vop full need to treats rgb888 as bgr888 so we reverse the rb swap to workaround 878 */ 879 if (crtc_state->format == ROCKCHIP_FMT_RGB888 && VOP_MAJOR(vop_data->version) == 3) 880 crtc_state->rb_swap = !crtc_state->rb_swap; 881 882 if (mode->flags & DRM_MODE_FLAG_YMIRROR) 883 y_mirror = 1; 884 else 885 y_mirror = 0; 886 if (mode->flags & DRM_MODE_FLAG_XMIRROR) 887 x_mirror = 1; 888 else 889 x_mirror = 0; 890 if (crtc_state->ymirror ^ y_mirror) 891 y_mirror = 1; 892 else 893 y_mirror = 0; 894 if (y_mirror) { 895 if (VOP_CTRL_SUPPORT(vop, ymirror)) 896 crtc_state->dma_addr += (src_h - 1) * xvir * 4; 897 else 898 y_mirror = 0; 899 } 900 VOP_CTRL_SET(vop, ymirror, y_mirror); 901 VOP_CTRL_SET(vop, xmirror, x_mirror); 902 903 VOP_WIN_SET(vop, format, crtc_state->format); 904 905 VOP_WIN_SET(vop, interlace_read, (mode->flags & DRM_MODE_FLAG_INTERLACE) ? 1 : 0); 906 907 VOP_WIN_SET(vop, yrgb_vir, xvir); 908 VOP_WIN_SET(vop, yrgb_mst, crtc_state->dma_addr); 909 910 scl_vop_cal_scl_fac(vop, src_w, src_h, crtc_w, crtc_h, 911 crtc_state->format); 912 913 VOP_WIN_SET(vop, act_info, act_info); 914 VOP_WIN_SET(vop, dsp_info, dsp_info); 915 VOP_WIN_SET(vop, dsp_st, dsp_st); 916 VOP_WIN_SET(vop, rb_swap, crtc_state->rb_swap); 917 918 VOP_WIN_SET(vop, src_alpha_ctl, 0); 919 920 rockchip_vop_setup_csc_table(state); 921 VOP_WIN_SET(vop, enable, 1); 922 VOP_WIN_SET(vop, gate, 1); 923 vop_cfg_done(vop); 924 925 printf("VOP:0x%8p set plane [%dx%d->%dx%d@%dx%d] fmt[%d] addr[0x%x]\n", 926 vop->regs, crtc_state->src_rect.w, crtc_state->src_rect.h, 927 crtc_state->crtc_rect.w, crtc_state->crtc_rect.h, 928 crtc_state->crtc_rect.x, crtc_state->crtc_rect.y, 929 crtc_state->format, crtc_state->dma_addr); 930 931 return 0; 932 } 933 934 static int rockchip_vop_prepare(struct display_state *state) 935 { 936 return 0; 937 } 938 939 static int rockchip_vop_enable(struct display_state *state) 940 { 941 struct crtc_state *crtc_state = &state->crtc_state; 942 struct vop *vop = crtc_state->private; 943 944 VOP_CTRL_SET(vop, standby, 0); 945 vop_cfg_done(vop); 946 if (crtc_state->mcu_timing.mcu_pix_total > 0) 947 VOP_CTRL_SET(vop, mcu_hold_mode, 0); 948 949 return 0; 950 } 951 952 static int rockchip_vop_disable(struct display_state *state) 953 { 954 struct crtc_state *crtc_state = &state->crtc_state; 955 struct vop *vop = crtc_state->private; 956 957 VOP_CTRL_SET(vop, standby, 1); 958 vop_cfg_done(vop); 959 return 0; 960 } 961 962 static int rockchip_vop_fixup_dts(struct display_state *state, void *blob) 963 { 964 #if 0 965 struct crtc_state *crtc_state = &state->crtc_state; 966 struct panel_state *pstate = &state->panel_state; 967 uint32_t phandle; 968 char path[100]; 969 int ret, dsp_lut_node; 970 971 if (!ofnode_valid(pstate->dsp_lut_node)) 972 return 0; 973 ret = fdt_get_path(state->blob, pstate->dsp_lut_node, path, sizeof(path)); 974 if (ret < 0) { 975 printf("failed to get dsp_lut path[%s], ret=%d\n", 976 path, ret); 977 return ret; 978 } 979 980 dsp_lut_node = fdt_path_offset(blob, path); 981 phandle = fdt_get_phandle(blob, dsp_lut_node); 982 if (!phandle) { 983 phandle = fdt_alloc_phandle(blob); 984 if (!phandle) { 985 printf("failed to alloc phandle\n"); 986 return -ENOMEM; 987 } 988 989 fdt_set_phandle(blob, dsp_lut_node, phandle); 990 } 991 992 ret = fdt_get_path(state->blob, crtc_state->node, path, sizeof(path)); 993 if (ret < 0) { 994 printf("failed to get route path[%s], ret=%d\n", 995 path, ret); 996 return ret; 997 } 998 999 do_fixup_by_path_u32(blob, path, "dsp-lut", phandle, 1); 1000 #endif 1001 return 0; 1002 } 1003 1004 static int rockchip_vop_send_mcu_cmd(struct display_state *state, u32 type, u32 value) 1005 { 1006 struct crtc_state *crtc_state = &state->crtc_state; 1007 struct connector_state *conn_state = &state->conn_state; 1008 struct drm_display_mode *mode = &conn_state->mode; 1009 struct vop *vop = crtc_state->private; 1010 int ret; 1011 1012 if (vop->version >= VOP_VERSION(2, 0xd)) { 1013 /* 1014 * 1.set mcu bypass mode timing. 1015 * 2.set dclk rate to 150M. 1016 */ 1017 if ((type == MCU_SETBYPASS) && value) { 1018 vop_mcu_bypass_mode_setup(state, vop); 1019 ret = clk_set_rate(&crtc_state->dclk, 150000000); 1020 if (IS_ERR_VALUE(ret)) { 1021 printf("%s: Failed to set dclk: ret=%d\n", __func__, ret); 1022 return ret; 1023 } 1024 } 1025 } 1026 1027 if (vop) { 1028 switch (type) { 1029 case MCU_WRCMD: 1030 set_vop_mcu_rs(vop, 0); 1031 VOP_CTRL_SET(vop, mcu_rw_bypass_port, value); 1032 set_vop_mcu_rs(vop, 1); 1033 break; 1034 case MCU_WRDATA: 1035 set_vop_mcu_rs(vop, 1); 1036 VOP_CTRL_SET(vop, mcu_rw_bypass_port, value); 1037 break; 1038 case MCU_SETBYPASS: 1039 VOP_CTRL_SET(vop, mcu_bypass, value ? 1 : 0); 1040 break; 1041 default: 1042 break; 1043 } 1044 } 1045 1046 if (vop->version >= VOP_VERSION(2, 0xd)) { 1047 /* 1048 * 1.restore mcu data mode timing. 1049 * 2.restore dclk rate to crtc_clock. 1050 */ 1051 if ((type == MCU_SETBYPASS) && !value) { 1052 vop_mcu_mode_setup(state, vop); 1053 ret = clk_set_rate(&crtc_state->dclk, mode->crtc_clock * 1000); 1054 if (IS_ERR_VALUE(ret)) { 1055 printf("%s: Failed to set dclk: ret=%d\n", __func__, ret); 1056 return ret; 1057 } 1058 } 1059 } 1060 1061 return 0; 1062 } 1063 1064 static int rockchip_vop_mode_valid(struct display_state *state) 1065 { 1066 struct connector_state *conn_state = &state->conn_state; 1067 struct drm_display_mode *mode = &conn_state->mode; 1068 struct videomode vm; 1069 1070 drm_display_mode_to_videomode(mode, &vm); 1071 1072 if (vm.hactive < 32 || vm.vactive < 32 || 1073 (vm.hfront_porch * vm.hsync_len * vm.hback_porch * 1074 vm.vfront_porch * vm.vsync_len * vm.vback_porch == 0)) { 1075 printf("ERROR: unsupported display timing\n"); 1076 return -EINVAL; 1077 } 1078 1079 return 0; 1080 } 1081 1082 static int rockchip_vop_plane_check(struct display_state *state) 1083 { 1084 struct crtc_state *crtc_state = &state->crtc_state; 1085 const struct rockchip_crtc *crtc = crtc_state->crtc; 1086 const struct vop_data *vop_data = crtc->data; 1087 const struct vop_win *win = vop_data->win; 1088 struct display_rect *src = &crtc_state->src_rect; 1089 struct display_rect *dst = &crtc_state->crtc_rect; 1090 int min_scale, max_scale; 1091 int hscale, vscale; 1092 1093 min_scale = win->scl ? FRAC_16_16(1, 8) : VOP_PLANE_NO_SCALING; 1094 max_scale = win->scl ? FRAC_16_16(8, 1) : VOP_PLANE_NO_SCALING; 1095 1096 hscale = display_rect_calc_hscale(src, dst, min_scale, max_scale); 1097 vscale = display_rect_calc_vscale(src, dst, min_scale, max_scale); 1098 if (hscale < 0 || vscale < 0) { 1099 printf("ERROR: scale factor is out of range\n"); 1100 return -ERANGE; 1101 } 1102 1103 return 0; 1104 } 1105 1106 static int rockchip_vop_mode_fixup(struct display_state *state) 1107 { 1108 struct crtc_state *crtc_state = &state->crtc_state; 1109 const struct rockchip_crtc *crtc = crtc_state->crtc; 1110 const struct vop_data *vop_data = crtc->data; 1111 struct connector_state *conn_state = &state->conn_state; 1112 struct drm_display_mode *mode = &conn_state->mode; 1113 1114 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V | CRTC_STEREO_DOUBLE); 1115 1116 /* 1117 * Dclk need to be double if BT656 interface and vop version >= 2.12. 1118 */ 1119 if (mode->flags & DRM_MODE_FLAG_DBLCLK || 1120 (VOP_MAJOR(vop_data->version) == 2 && VOP_MINOR(vop_data->version) >= 12 && 1121 conn_state->output_if & VOP_OUTPUT_IF_BT656)) 1122 mode->crtc_clock *= 2; 1123 1124 mode->crtc_clock *= rockchip_drm_get_cycles_per_pixel(conn_state->bus_format); 1125 if (crtc_state->mcu_timing.mcu_pix_total) 1126 mode->crtc_clock *= crtc_state->mcu_timing.mcu_pix_total + 1; 1127 1128 return 0; 1129 } 1130 1131 const struct rockchip_crtc_funcs rockchip_vop_funcs = { 1132 .preinit = rockchip_vop_preinit, 1133 .init = rockchip_vop_init, 1134 .set_plane = rockchip_vop_set_plane, 1135 .prepare = rockchip_vop_prepare, 1136 .enable = rockchip_vop_enable, 1137 .disable = rockchip_vop_disable, 1138 .fixup_dts = rockchip_vop_fixup_dts, 1139 .send_mcu_cmd = rockchip_vop_send_mcu_cmd, 1140 .mode_valid = rockchip_vop_mode_valid, 1141 .plane_check = rockchip_vop_plane_check, 1142 .mode_fixup = rockchip_vop_mode_fixup, 1143 }; 1144