1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd 4 */ 5 6 #include <linux/clk.h> 7 #include <linux/mfd/syscon.h> 8 #include <linux/module.h> 9 #include <linux/platform_device.h> 10 #include <linux/phy/phy.h> 11 #include <linux/regmap.h> 12 13 #include <drm/bridge/dw_hdmi.h> 14 #include <drm/drm_edid.h> 15 #include <drm/drm_of.h> 16 #include <drm/drm_probe_helper.h> 17 #include <drm/drm_simple_kms_helper.h> 18 19 #include "rockchip_drm_drv.h" 20 #include "rockchip_drm_vop.h" 21 22 #define RK3228_GRF_SOC_CON2 0x0408 23 #define RK3228_HDMI_SDAIN_MSK BIT(14) 24 #define RK3228_HDMI_SCLIN_MSK BIT(13) 25 #define RK3228_GRF_SOC_CON6 0x0418 26 #define RK3228_HDMI_HPD_VSEL BIT(6) 27 #define RK3228_HDMI_SDA_VSEL BIT(5) 28 #define RK3228_HDMI_SCL_VSEL BIT(4) 29 30 #define RK3288_GRF_SOC_CON6 0x025C 31 #define RK3288_HDMI_LCDC_SEL BIT(4) 32 #define RK3328_GRF_SOC_CON2 0x0408 33 34 #define RK3328_HDMI_SDAIN_MSK BIT(11) 35 #define RK3328_HDMI_SCLIN_MSK BIT(10) 36 #define RK3328_HDMI_HPD_IOE BIT(2) 37 #define RK3328_GRF_SOC_CON3 0x040c 38 /* need to be unset if hdmi or i2c should control voltage */ 39 #define RK3328_HDMI_SDA5V_GRF BIT(15) 40 #define RK3328_HDMI_SCL5V_GRF BIT(14) 41 #define RK3328_HDMI_HPD5V_GRF BIT(13) 42 #define RK3328_HDMI_CEC5V_GRF BIT(12) 43 #define RK3328_GRF_SOC_CON4 0x0410 44 #define RK3328_HDMI_HPD_SARADC BIT(13) 45 #define RK3328_HDMI_CEC_5V BIT(11) 46 #define RK3328_HDMI_SDA_5V BIT(10) 47 #define RK3328_HDMI_SCL_5V BIT(9) 48 #define RK3328_HDMI_HPD_5V BIT(8) 49 50 #define RK3399_GRF_SOC_CON20 0x6250 51 #define RK3399_HDMI_LCDC_SEL BIT(6) 52 53 #define HIWORD_UPDATE(val, mask) (val | (mask) << 16) 54 55 /** 56 * struct rockchip_hdmi_chip_data - splite the grf setting of kind of chips 57 * @lcdsel_grf_reg: grf register offset of lcdc select 58 * @lcdsel_big: reg value of selecting vop big for HDMI 59 * @lcdsel_lit: reg value of selecting vop little for HDMI 60 */ 61 struct rockchip_hdmi_chip_data { 62 int lcdsel_grf_reg; 63 u32 lcdsel_big; 64 u32 lcdsel_lit; 65 }; 66 67 struct rockchip_hdmi { 68 struct device *dev; 69 struct regmap *regmap; 70 struct drm_encoder encoder; 71 const struct rockchip_hdmi_chip_data *chip_data; 72 struct clk *vpll_clk; 73 struct clk *grf_clk; 74 struct dw_hdmi *hdmi; 75 struct phy *phy; 76 }; 77 78 #define to_rockchip_hdmi(x) container_of(x, struct rockchip_hdmi, x) 79 80 static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = { 81 { 82 27000000, { 83 { 0x00b3, 0x0000}, 84 { 0x2153, 0x0000}, 85 { 0x40f3, 0x0000} 86 }, 87 }, { 88 36000000, { 89 { 0x00b3, 0x0000}, 90 { 0x2153, 0x0000}, 91 { 0x40f3, 0x0000} 92 }, 93 }, { 94 40000000, { 95 { 0x00b3, 0x0000}, 96 { 0x2153, 0x0000}, 97 { 0x40f3, 0x0000} 98 }, 99 }, { 100 54000000, { 101 { 0x0072, 0x0001}, 102 { 0x2142, 0x0001}, 103 { 0x40a2, 0x0001}, 104 }, 105 }, { 106 65000000, { 107 { 0x0072, 0x0001}, 108 { 0x2142, 0x0001}, 109 { 0x40a2, 0x0001}, 110 }, 111 }, { 112 66000000, { 113 { 0x013e, 0x0003}, 114 { 0x217e, 0x0002}, 115 { 0x4061, 0x0002} 116 }, 117 }, { 118 74250000, { 119 { 0x0072, 0x0001}, 120 { 0x2145, 0x0002}, 121 { 0x4061, 0x0002} 122 }, 123 }, { 124 83500000, { 125 { 0x0072, 0x0001}, 126 }, 127 }, { 128 108000000, { 129 { 0x0051, 0x0002}, 130 { 0x2145, 0x0002}, 131 { 0x4061, 0x0002} 132 }, 133 }, { 134 106500000, { 135 { 0x0051, 0x0002}, 136 { 0x2145, 0x0002}, 137 { 0x4061, 0x0002} 138 }, 139 }, { 140 146250000, { 141 { 0x0051, 0x0002}, 142 { 0x2145, 0x0002}, 143 { 0x4061, 0x0002} 144 }, 145 }, { 146 148500000, { 147 { 0x0051, 0x0003}, 148 { 0x214c, 0x0003}, 149 { 0x4064, 0x0003} 150 }, 151 }, { 152 ~0UL, { 153 { 0x00a0, 0x000a }, 154 { 0x2001, 0x000f }, 155 { 0x4002, 0x000f }, 156 }, 157 } 158 }; 159 160 static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = { 161 /* pixelclk bpp8 bpp10 bpp12 */ 162 { 163 40000000, { 0x0018, 0x0018, 0x0018 }, 164 }, { 165 65000000, { 0x0028, 0x0028, 0x0028 }, 166 }, { 167 66000000, { 0x0038, 0x0038, 0x0038 }, 168 }, { 169 74250000, { 0x0028, 0x0038, 0x0038 }, 170 }, { 171 83500000, { 0x0028, 0x0038, 0x0038 }, 172 }, { 173 146250000, { 0x0038, 0x0038, 0x0038 }, 174 }, { 175 148500000, { 0x0000, 0x0038, 0x0038 }, 176 }, { 177 ~0UL, { 0x0000, 0x0000, 0x0000}, 178 } 179 }; 180 181 static const struct dw_hdmi_phy_config rockchip_phy_config[] = { 182 /*pixelclk symbol term vlev*/ 183 { 74250000, 0x8009, 0x0004, 0x0272}, 184 { 148500000, 0x802b, 0x0004, 0x028d}, 185 { 297000000, 0x8039, 0x0005, 0x028d}, 186 { ~0UL, 0x0000, 0x0000, 0x0000} 187 }; 188 189 static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi) 190 { 191 struct device_node *np = hdmi->dev->of_node; 192 193 hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf"); 194 if (IS_ERR(hdmi->regmap)) { 195 DRM_DEV_ERROR(hdmi->dev, "Unable to get rockchip,grf\n"); 196 return PTR_ERR(hdmi->regmap); 197 } 198 199 hdmi->vpll_clk = devm_clk_get(hdmi->dev, "vpll"); 200 if (PTR_ERR(hdmi->vpll_clk) == -ENOENT) { 201 hdmi->vpll_clk = NULL; 202 } else if (PTR_ERR(hdmi->vpll_clk) == -EPROBE_DEFER) { 203 return -EPROBE_DEFER; 204 } else if (IS_ERR(hdmi->vpll_clk)) { 205 DRM_DEV_ERROR(hdmi->dev, "failed to get vpll clock\n"); 206 return PTR_ERR(hdmi->vpll_clk); 207 } 208 209 hdmi->grf_clk = devm_clk_get(hdmi->dev, "grf"); 210 if (PTR_ERR(hdmi->grf_clk) == -ENOENT) { 211 hdmi->grf_clk = NULL; 212 } else if (PTR_ERR(hdmi->grf_clk) == -EPROBE_DEFER) { 213 return -EPROBE_DEFER; 214 } else if (IS_ERR(hdmi->grf_clk)) { 215 DRM_DEV_ERROR(hdmi->dev, "failed to get grf clock\n"); 216 return PTR_ERR(hdmi->grf_clk); 217 } 218 219 return 0; 220 } 221 222 static enum drm_mode_status 223 dw_hdmi_rockchip_mode_valid(struct dw_hdmi *hdmi, void *data, 224 const struct drm_display_info *info, 225 const struct drm_display_mode *mode) 226 { 227 const struct dw_hdmi_mpll_config *mpll_cfg = rockchip_mpll_cfg; 228 int pclk = mode->clock * 1000; 229 bool valid = false; 230 int i; 231 232 for (i = 0; mpll_cfg[i].mpixelclock != (~0UL); i++) { 233 if (pclk == mpll_cfg[i].mpixelclock) { 234 valid = true; 235 break; 236 } 237 } 238 239 return (valid) ? MODE_OK : MODE_BAD; 240 } 241 242 static void dw_hdmi_rockchip_encoder_disable(struct drm_encoder *encoder) 243 { 244 } 245 246 static bool 247 dw_hdmi_rockchip_encoder_mode_fixup(struct drm_encoder *encoder, 248 const struct drm_display_mode *mode, 249 struct drm_display_mode *adj_mode) 250 { 251 return true; 252 } 253 254 static void dw_hdmi_rockchip_encoder_mode_set(struct drm_encoder *encoder, 255 struct drm_display_mode *mode, 256 struct drm_display_mode *adj_mode) 257 { 258 struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder); 259 260 clk_set_rate(hdmi->vpll_clk, adj_mode->clock * 1000); 261 } 262 263 static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder) 264 { 265 struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder); 266 u32 val; 267 int ret; 268 269 if (hdmi->chip_data->lcdsel_grf_reg < 0) 270 return; 271 272 ret = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder); 273 if (ret) 274 val = hdmi->chip_data->lcdsel_lit; 275 else 276 val = hdmi->chip_data->lcdsel_big; 277 278 ret = clk_prepare_enable(hdmi->grf_clk); 279 if (ret < 0) { 280 DRM_DEV_ERROR(hdmi->dev, "failed to enable grfclk %d\n", ret); 281 return; 282 } 283 284 ret = regmap_write(hdmi->regmap, hdmi->chip_data->lcdsel_grf_reg, val); 285 if (ret != 0) 286 DRM_DEV_ERROR(hdmi->dev, "Could not write to GRF: %d\n", ret); 287 288 clk_disable_unprepare(hdmi->grf_clk); 289 DRM_DEV_DEBUG(hdmi->dev, "vop %s output to hdmi\n", 290 ret ? "LIT" : "BIG"); 291 } 292 293 static int 294 dw_hdmi_rockchip_encoder_atomic_check(struct drm_encoder *encoder, 295 struct drm_crtc_state *crtc_state, 296 struct drm_connector_state *conn_state) 297 { 298 struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state); 299 300 s->output_mode = ROCKCHIP_OUT_MODE_AAAA; 301 s->output_type = DRM_MODE_CONNECTOR_HDMIA; 302 303 return 0; 304 } 305 306 static const struct drm_encoder_helper_funcs dw_hdmi_rockchip_encoder_helper_funcs = { 307 .mode_fixup = dw_hdmi_rockchip_encoder_mode_fixup, 308 .mode_set = dw_hdmi_rockchip_encoder_mode_set, 309 .enable = dw_hdmi_rockchip_encoder_enable, 310 .disable = dw_hdmi_rockchip_encoder_disable, 311 .atomic_check = dw_hdmi_rockchip_encoder_atomic_check, 312 }; 313 314 static int dw_hdmi_rockchip_genphy_init(struct dw_hdmi *dw_hdmi, void *data, 315 const struct drm_display_info *display, 316 const struct drm_display_mode *mode) 317 { 318 struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; 319 320 return phy_power_on(hdmi->phy); 321 } 322 323 static void dw_hdmi_rockchip_genphy_disable(struct dw_hdmi *dw_hdmi, void *data) 324 { 325 struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; 326 327 phy_power_off(hdmi->phy); 328 } 329 330 static void dw_hdmi_rk3228_setup_hpd(struct dw_hdmi *dw_hdmi, void *data) 331 { 332 struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; 333 334 dw_hdmi_phy_setup_hpd(dw_hdmi, data); 335 336 regmap_write(hdmi->regmap, 337 RK3228_GRF_SOC_CON6, 338 HIWORD_UPDATE(RK3228_HDMI_HPD_VSEL | RK3228_HDMI_SDA_VSEL | 339 RK3228_HDMI_SCL_VSEL, 340 RK3228_HDMI_HPD_VSEL | RK3228_HDMI_SDA_VSEL | 341 RK3228_HDMI_SCL_VSEL)); 342 343 regmap_write(hdmi->regmap, 344 RK3228_GRF_SOC_CON2, 345 HIWORD_UPDATE(RK3228_HDMI_SDAIN_MSK | RK3228_HDMI_SCLIN_MSK, 346 RK3228_HDMI_SDAIN_MSK | RK3228_HDMI_SCLIN_MSK)); 347 } 348 349 static enum drm_connector_status 350 dw_hdmi_rk3328_read_hpd(struct dw_hdmi *dw_hdmi, void *data) 351 { 352 struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; 353 enum drm_connector_status status; 354 355 status = dw_hdmi_phy_read_hpd(dw_hdmi, data); 356 357 if (status == connector_status_connected) 358 regmap_write(hdmi->regmap, 359 RK3328_GRF_SOC_CON4, 360 HIWORD_UPDATE(RK3328_HDMI_SDA_5V | RK3328_HDMI_SCL_5V, 361 RK3328_HDMI_SDA_5V | RK3328_HDMI_SCL_5V)); 362 else 363 regmap_write(hdmi->regmap, 364 RK3328_GRF_SOC_CON4, 365 HIWORD_UPDATE(0, RK3328_HDMI_SDA_5V | 366 RK3328_HDMI_SCL_5V)); 367 return status; 368 } 369 370 static void dw_hdmi_rk3328_setup_hpd(struct dw_hdmi *dw_hdmi, void *data) 371 { 372 struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data; 373 374 dw_hdmi_phy_setup_hpd(dw_hdmi, data); 375 376 /* Enable and map pins to 3V grf-controlled io-voltage */ 377 regmap_write(hdmi->regmap, 378 RK3328_GRF_SOC_CON4, 379 HIWORD_UPDATE(0, RK3328_HDMI_HPD_SARADC | RK3328_HDMI_CEC_5V | 380 RK3328_HDMI_SDA_5V | RK3328_HDMI_SCL_5V | 381 RK3328_HDMI_HPD_5V)); 382 regmap_write(hdmi->regmap, 383 RK3328_GRF_SOC_CON3, 384 HIWORD_UPDATE(0, RK3328_HDMI_SDA5V_GRF | RK3328_HDMI_SCL5V_GRF | 385 RK3328_HDMI_HPD5V_GRF | 386 RK3328_HDMI_CEC5V_GRF)); 387 regmap_write(hdmi->regmap, 388 RK3328_GRF_SOC_CON2, 389 HIWORD_UPDATE(RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK, 390 RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK | 391 RK3328_HDMI_HPD_IOE)); 392 } 393 394 static const struct dw_hdmi_phy_ops rk3228_hdmi_phy_ops = { 395 .init = dw_hdmi_rockchip_genphy_init, 396 .disable = dw_hdmi_rockchip_genphy_disable, 397 .read_hpd = dw_hdmi_phy_read_hpd, 398 .update_hpd = dw_hdmi_phy_update_hpd, 399 .setup_hpd = dw_hdmi_rk3228_setup_hpd, 400 }; 401 402 static struct rockchip_hdmi_chip_data rk3228_chip_data = { 403 .lcdsel_grf_reg = -1, 404 }; 405 406 static const struct dw_hdmi_plat_data rk3228_hdmi_drv_data = { 407 .mode_valid = dw_hdmi_rockchip_mode_valid, 408 .mpll_cfg = rockchip_mpll_cfg, 409 .cur_ctr = rockchip_cur_ctr, 410 .phy_config = rockchip_phy_config, 411 .phy_data = &rk3228_chip_data, 412 .phy_ops = &rk3228_hdmi_phy_ops, 413 .phy_name = "inno_dw_hdmi_phy2", 414 .phy_force_vendor = true, 415 }; 416 417 static struct rockchip_hdmi_chip_data rk3288_chip_data = { 418 .lcdsel_grf_reg = RK3288_GRF_SOC_CON6, 419 .lcdsel_big = HIWORD_UPDATE(0, RK3288_HDMI_LCDC_SEL), 420 .lcdsel_lit = HIWORD_UPDATE(RK3288_HDMI_LCDC_SEL, RK3288_HDMI_LCDC_SEL), 421 }; 422 423 static const struct dw_hdmi_plat_data rk3288_hdmi_drv_data = { 424 .mode_valid = dw_hdmi_rockchip_mode_valid, 425 .mpll_cfg = rockchip_mpll_cfg, 426 .cur_ctr = rockchip_cur_ctr, 427 .phy_config = rockchip_phy_config, 428 .phy_data = &rk3288_chip_data, 429 }; 430 431 static const struct dw_hdmi_phy_ops rk3328_hdmi_phy_ops = { 432 .init = dw_hdmi_rockchip_genphy_init, 433 .disable = dw_hdmi_rockchip_genphy_disable, 434 .read_hpd = dw_hdmi_rk3328_read_hpd, 435 .update_hpd = dw_hdmi_phy_update_hpd, 436 .setup_hpd = dw_hdmi_rk3328_setup_hpd, 437 }; 438 439 static struct rockchip_hdmi_chip_data rk3328_chip_data = { 440 .lcdsel_grf_reg = -1, 441 }; 442 443 static const struct dw_hdmi_plat_data rk3328_hdmi_drv_data = { 444 .mode_valid = dw_hdmi_rockchip_mode_valid, 445 .mpll_cfg = rockchip_mpll_cfg, 446 .cur_ctr = rockchip_cur_ctr, 447 .phy_config = rockchip_phy_config, 448 .phy_data = &rk3328_chip_data, 449 .phy_ops = &rk3328_hdmi_phy_ops, 450 .phy_name = "inno_dw_hdmi_phy2", 451 .phy_force_vendor = true, 452 .use_drm_infoframe = true, 453 }; 454 455 static struct rockchip_hdmi_chip_data rk3399_chip_data = { 456 .lcdsel_grf_reg = RK3399_GRF_SOC_CON20, 457 .lcdsel_big = HIWORD_UPDATE(0, RK3399_HDMI_LCDC_SEL), 458 .lcdsel_lit = HIWORD_UPDATE(RK3399_HDMI_LCDC_SEL, RK3399_HDMI_LCDC_SEL), 459 }; 460 461 static const struct dw_hdmi_plat_data rk3399_hdmi_drv_data = { 462 .mode_valid = dw_hdmi_rockchip_mode_valid, 463 .mpll_cfg = rockchip_mpll_cfg, 464 .cur_ctr = rockchip_cur_ctr, 465 .phy_config = rockchip_phy_config, 466 .phy_data = &rk3399_chip_data, 467 .use_drm_infoframe = true, 468 }; 469 470 static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = { 471 { .compatible = "rockchip,rk3228-dw-hdmi", 472 .data = &rk3228_hdmi_drv_data 473 }, 474 { .compatible = "rockchip,rk3288-dw-hdmi", 475 .data = &rk3288_hdmi_drv_data 476 }, 477 { .compatible = "rockchip,rk3328-dw-hdmi", 478 .data = &rk3328_hdmi_drv_data 479 }, 480 { .compatible = "rockchip,rk3399-dw-hdmi", 481 .data = &rk3399_hdmi_drv_data 482 }, 483 {}, 484 }; 485 MODULE_DEVICE_TABLE(of, dw_hdmi_rockchip_dt_ids); 486 487 static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master, 488 void *data) 489 { 490 struct platform_device *pdev = to_platform_device(dev); 491 struct dw_hdmi_plat_data *plat_data; 492 const struct of_device_id *match; 493 struct drm_device *drm = data; 494 struct drm_encoder *encoder; 495 struct rockchip_hdmi *hdmi; 496 int ret; 497 498 if (!pdev->dev.of_node) 499 return -ENODEV; 500 501 hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL); 502 if (!hdmi) 503 return -ENOMEM; 504 505 match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node); 506 plat_data = devm_kmemdup(&pdev->dev, match->data, 507 sizeof(*plat_data), GFP_KERNEL); 508 if (!plat_data) 509 return -ENOMEM; 510 511 hdmi->dev = &pdev->dev; 512 hdmi->chip_data = plat_data->phy_data; 513 plat_data->phy_data = hdmi; 514 encoder = &hdmi->encoder; 515 516 encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node); 517 /* 518 * If we failed to find the CRTC(s) which this encoder is 519 * supposed to be connected to, it's because the CRTC has 520 * not been registered yet. Defer probing, and hope that 521 * the required CRTC is added later. 522 */ 523 if (encoder->possible_crtcs == 0) 524 return -EPROBE_DEFER; 525 526 ret = rockchip_hdmi_parse_dt(hdmi); 527 if (ret) { 528 DRM_DEV_ERROR(hdmi->dev, "Unable to parse OF data\n"); 529 return ret; 530 } 531 532 hdmi->phy = devm_phy_optional_get(dev, "hdmi"); 533 if (IS_ERR(hdmi->phy)) { 534 ret = PTR_ERR(hdmi->phy); 535 if (ret != -EPROBE_DEFER) 536 DRM_DEV_ERROR(hdmi->dev, "failed to get phy\n"); 537 return ret; 538 } 539 540 ret = clk_prepare_enable(hdmi->vpll_clk); 541 if (ret) { 542 DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI vpll: %d\n", 543 ret); 544 return ret; 545 } 546 547 drm_encoder_helper_add(encoder, &dw_hdmi_rockchip_encoder_helper_funcs); 548 drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS); 549 550 platform_set_drvdata(pdev, hdmi); 551 552 hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data); 553 554 /* 555 * If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(), 556 * which would have called the encoder cleanup. Do it manually. 557 */ 558 if (IS_ERR(hdmi->hdmi)) { 559 ret = PTR_ERR(hdmi->hdmi); 560 drm_encoder_cleanup(encoder); 561 clk_disable_unprepare(hdmi->vpll_clk); 562 } 563 564 return ret; 565 } 566 567 static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master, 568 void *data) 569 { 570 struct rockchip_hdmi *hdmi = dev_get_drvdata(dev); 571 572 dw_hdmi_unbind(hdmi->hdmi); 573 clk_disable_unprepare(hdmi->vpll_clk); 574 } 575 576 static const struct component_ops dw_hdmi_rockchip_ops = { 577 .bind = dw_hdmi_rockchip_bind, 578 .unbind = dw_hdmi_rockchip_unbind, 579 }; 580 581 static int dw_hdmi_rockchip_probe(struct platform_device *pdev) 582 { 583 return component_add(&pdev->dev, &dw_hdmi_rockchip_ops); 584 } 585 586 static int dw_hdmi_rockchip_remove(struct platform_device *pdev) 587 { 588 component_del(&pdev->dev, &dw_hdmi_rockchip_ops); 589 590 return 0; 591 } 592 593 static int __maybe_unused dw_hdmi_rockchip_resume(struct device *dev) 594 { 595 struct rockchip_hdmi *hdmi = dev_get_drvdata(dev); 596 597 dw_hdmi_resume(hdmi->hdmi); 598 599 return 0; 600 } 601 602 static const struct dev_pm_ops dw_hdmi_rockchip_pm = { 603 SET_SYSTEM_SLEEP_PM_OPS(NULL, dw_hdmi_rockchip_resume) 604 }; 605 606 struct platform_driver dw_hdmi_rockchip_pltfm_driver = { 607 .probe = dw_hdmi_rockchip_probe, 608 .remove = dw_hdmi_rockchip_remove, 609 .driver = { 610 .name = "dwhdmi-rockchip", 611 .pm = &dw_hdmi_rockchip_pm, 612 .of_match_table = dw_hdmi_rockchip_dt_ids, 613 }, 614 }; 615