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 <dm/device.h> 11 #include <dm/read.h> 12 #include <dm/ofnode.h> 13 #include <dm/of_access.h> 14 #include <syscon.h> 15 #include <regmap.h> 16 #include <dm/device.h> 17 #include <dm/read.h> 18 #include <linux/media-bus-format.h> 19 20 #include "rockchip_display.h" 21 #include "rockchip_connector.h" 22 #include "rockchip_phy.h" 23 #include "rockchip_panel.h" 24 25 #define HIWORD_UPDATE(v, h, l) (((v) << (l)) | (GENMASK(h, l) << 16)) 26 27 #define PX30_GRF_PD_VO_CON1 0x0438 28 #define PX30_LVDS_SELECT(x) HIWORD_UPDATE(x, 14, 13) 29 #define PX30_LVDS_MODE_EN(x) HIWORD_UPDATE(x, 12, 12) 30 #define PX30_LVDS_MSBSEL(x) HIWORD_UPDATE(x, 11, 11) 31 #define PX30_LVDS_P2S_EN(x) HIWORD_UPDATE(x, 6, 6) 32 #define PX30_LVDS_VOP_SEL(x) HIWORD_UPDATE(x, 1, 1) 33 34 #define RK3126_GRF_LVDS_CON0 0x0150 35 #define RK3126_LVDS_P2S_EN(x) HIWORD_UPDATE(x, 9, 9) 36 #define RK3126_LVDS_MODE_EN(x) HIWORD_UPDATE(x, 6, 6) 37 #define RK3126_LVDS_MSBSEL(x) HIWORD_UPDATE(x, 3, 3) 38 #define RK3126_LVDS_SELECT(x) HIWORD_UPDATE(x, 2, 1) 39 40 #define RK3288_GRF_SOC_CON6 0x025c 41 #define RK3288_LVDS_LCDC_SEL(x) HIWORD_UPDATE(x, 3, 3) 42 #define RK3288_GRF_SOC_CON7 0x0260 43 #define RK3288_LVDS_PWRDWN(x) HIWORD_UPDATE(x, 15, 15) 44 #define RK3288_LVDS_CON_ENABLE_2(x) HIWORD_UPDATE(x, 12, 12) 45 #define RK3288_LVDS_CON_ENABLE_1(x) HIWORD_UPDATE(x, 11, 11) 46 #define RK3288_LVDS_CON_DEN_POL(x) HIWORD_UPDATE(x, 10, 10) 47 #define RK3288_LVDS_CON_HS_POL(x) HIWORD_UPDATE(x, 9, 9) 48 #define RK3288_LVDS_CON_CLKINV(x) HIWORD_UPDATE(x, 8, 8) 49 #define RK3288_LVDS_CON_STARTPHASE(x) HIWORD_UPDATE(x, 7, 7) 50 #define RK3288_LVDS_CON_TTL_EN(x) HIWORD_UPDATE(x, 6, 6) 51 #define RK3288_LVDS_CON_STARTSEL(x) HIWORD_UPDATE(x, 5, 5) 52 #define RK3288_LVDS_CON_CHASEL(x) HIWORD_UPDATE(x, 4, 4) 53 #define RK3288_LVDS_CON_MSBSEL(x) HIWORD_UPDATE(x, 3, 3) 54 #define RK3288_LVDS_CON_SELECT(x) HIWORD_UPDATE(x, 2, 0) 55 56 #define RK3368_GRF_SOC_CON7 0x041c 57 #define RK3368_LVDS_SELECT(x) HIWORD_UPDATE(x, 14, 13) 58 #define RK3368_LVDS_MODE_EN(x) HIWORD_UPDATE(x, 12, 12) 59 #define RK3368_LVDS_MSBSEL(x) HIWORD_UPDATE(x, 11, 11) 60 #define RK3368_LVDS_P2S_EN(x) HIWORD_UPDATE(x, 6, 6) 61 62 #define RK3562_GRF_VO_CON0 0x05d0 63 #define RK3562_GRF_VO_CON1 0x05d4 64 65 #define RK3568_GRF_VO_CON0 0x0360 66 #define RK3568_LVDS1_SELECT(x) HIWORD_UPDATE(x, 13, 12) 67 #define RK3568_LVDS1_MSBSEL(x) HIWORD_UPDATE(x, 11, 11) 68 #define RK3568_LVDS0_SELECT(x) HIWORD_UPDATE(x, 5, 4) 69 #define RK3568_LVDS0_MSBSEL(x) HIWORD_UPDATE(x, 3, 3) 70 #define RK3568_GRF_VO_CON2 0x0368 71 #define RK3568_LVDS0_DCLK_INV_SEL(x) HIWORD_UPDATE(x, 9, 9) 72 #define RK3568_LVDS0_DCLK_DIV2_SEL(x) HIWORD_UPDATE(x, 8, 8) 73 #define RK3568_LVDS0_MODE_EN(x) HIWORD_UPDATE(x, 1, 1) 74 #define RK3568_LVDS0_P2S_EN(x) HIWORD_UPDATE(x, 0, 0) 75 #define RK3568_GRF_VO_CON3 0x036c 76 #define RK3568_LVDS1_DCLK_INV_SEL(x) HIWORD_UPDATE(x, 9, 9) 77 #define RK3568_LVDS1_DCLK_DIV2_SEL(x) HIWORD_UPDATE(x, 8, 8) 78 #define RK3568_LVDS1_MODE_EN(x) HIWORD_UPDATE(x, 1, 1) 79 #define RK3568_LVDS1_P2S_EN(x) HIWORD_UPDATE(x, 0, 0) 80 81 enum lvds_format { 82 LVDS_8BIT_MODE_FORMAT_1, 83 LVDS_8BIT_MODE_FORMAT_2, 84 LVDS_8BIT_MODE_FORMAT_3, 85 LVDS_6BIT_MODE, 86 LVDS_10BIT_MODE_FORMAT_1, 87 LVDS_10BIT_MODE_FORMAT_2, 88 }; 89 90 struct rockchip_lvds; 91 92 struct rockchip_lvds_funcs { 93 void (*enable)(struct rockchip_lvds *lvds, int pipe); 94 void (*disable)(struct rockchip_lvds *lvds); 95 }; 96 97 struct rockchip_lvds { 98 struct rockchip_connector connector; 99 int id; 100 struct udevice *dev; 101 struct regmap *grf; 102 struct rockchip_phy *phy; 103 const struct drm_display_mode *mode; 104 const struct rockchip_lvds_funcs *funcs; 105 enum lvds_format format; 106 bool data_swap; 107 bool dual_channel; 108 }; 109 110 static int rockchip_lvds_connector_init(struct rockchip_connector *conn, 111 struct display_state *state) 112 { 113 struct rockchip_lvds *lvds = dev_get_priv(conn->dev); 114 struct connector_state *conn_state = &state->conn_state; 115 struct rockchip_panel *panel = conn->panel; 116 117 lvds->mode = &conn_state->mode; 118 lvds->phy = conn->phy; 119 conn_state->disp_info = rockchip_get_disp_info(conn_state->type, lvds->id); 120 121 switch (panel->bus_format) { 122 case MEDIA_BUS_FMT_RGB666_1X7X3_JEIDA: /* jeida-18 */ 123 lvds->format = LVDS_6BIT_MODE; 124 break; 125 case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: /* jeida-24 */ 126 lvds->format = LVDS_8BIT_MODE_FORMAT_2; 127 break; 128 case MEDIA_BUS_FMT_RGB101010_1X7X5_JEIDA: /* jeida-30 */ 129 lvds->format = LVDS_10BIT_MODE_FORMAT_1; 130 case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: /* vesa-18 */ 131 lvds->format = LVDS_8BIT_MODE_FORMAT_3; 132 break; 133 case MEDIA_BUS_FMT_RGB101010_1X7X5_SPWG: /* vesa-30 */ 134 lvds->format = LVDS_10BIT_MODE_FORMAT_2; 135 break; 136 case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: /* vesa-24 */ 137 default: 138 lvds->format = LVDS_8BIT_MODE_FORMAT_1; 139 break; 140 } 141 142 conn_state->output_mode = ROCKCHIP_OUT_MODE_P888; 143 144 if ((lvds->format == LVDS_10BIT_MODE_FORMAT_1) || 145 (lvds->format == LVDS_10BIT_MODE_FORMAT_2)) 146 conn_state->output_mode = ROCKCHIP_OUT_MODE_AAAA; 147 148 conn_state->color_space = V4L2_COLORSPACE_DEFAULT; 149 conn_state->output_if = VOP_OUTPUT_IF_LVDS0; 150 151 return 0; 152 } 153 154 static int rockchip_lvds_connector_enable(struct rockchip_connector *conn, 155 struct display_state *state) 156 { 157 struct rockchip_lvds *lvds = dev_get_priv(conn->dev); 158 struct crtc_state *crtc_state = &state->crtc_state; 159 int pipe = crtc_state->crtc_id; 160 int ret; 161 162 if (lvds->funcs->enable) 163 lvds->funcs->enable(lvds, pipe); 164 165 ret = rockchip_phy_set_mode(lvds->phy, PHY_MODE_VIDEO_LVDS); 166 if (ret) { 167 dev_err(lvds->dev, "failed to set phy mode: %d\n", ret); 168 return ret; 169 } 170 171 rockchip_phy_power_on(lvds->phy); 172 173 return 0; 174 } 175 176 static int rockchip_lvds_connector_disable(struct rockchip_connector *conn, 177 struct display_state *state) 178 { 179 struct rockchip_lvds *lvds = dev_get_priv(conn->dev); 180 181 rockchip_phy_power_off(lvds->phy); 182 183 if (lvds->funcs->disable) 184 lvds->funcs->disable(lvds); 185 186 return 0; 187 } 188 189 static const struct rockchip_connector_funcs rockchip_lvds_connector_funcs = { 190 .init = rockchip_lvds_connector_init, 191 .enable = rockchip_lvds_connector_enable, 192 .disable = rockchip_lvds_connector_disable, 193 }; 194 195 static int rockchip_lvds_probe(struct udevice *dev) 196 { 197 struct rockchip_lvds *lvds = dev_get_priv(dev); 198 199 lvds->dev = dev; 200 lvds->funcs = (const struct rockchip_lvds_funcs *)dev_get_driver_data(dev); 201 lvds->grf = syscon_get_regmap(dev_get_parent(dev)); 202 lvds->dual_channel = dev_read_bool(dev, "dual-channel"); 203 lvds->data_swap = dev_read_bool(dev, "rockchip,data-swap"); 204 lvds->id = of_alias_get_id(ofnode_to_np(dev->node), "lvds"); 205 if (lvds->id < 0) 206 lvds->id = 0; 207 208 rockchip_connector_bind(&lvds->connector, dev, lvds->id, &rockchip_lvds_connector_funcs, 209 NULL, DRM_MODE_CONNECTOR_LVDS); 210 211 return 0; 212 } 213 214 static void px30_lvds_enable(struct rockchip_lvds *lvds, int pipe) 215 { 216 regmap_write(lvds->grf, PX30_GRF_PD_VO_CON1, 217 PX30_LVDS_SELECT(lvds->format) | 218 PX30_LVDS_MODE_EN(1) | PX30_LVDS_MSBSEL(1) | 219 PX30_LVDS_P2S_EN(1) | PX30_LVDS_VOP_SEL(pipe)); 220 } 221 222 static void px30_lvds_disable(struct rockchip_lvds *lvds) 223 { 224 regmap_write(lvds->grf, PX30_GRF_PD_VO_CON1, 225 PX30_LVDS_MODE_EN(0) | PX30_LVDS_P2S_EN(0)); 226 } 227 228 static const struct rockchip_lvds_funcs px30_lvds_funcs = { 229 .enable = px30_lvds_enable, 230 .disable = px30_lvds_disable, 231 }; 232 233 static void rk3126_lvds_enable(struct rockchip_lvds *lvds, int pipe) 234 { 235 regmap_write(lvds->grf, RK3126_GRF_LVDS_CON0, 236 RK3126_LVDS_P2S_EN(1) | RK3126_LVDS_MODE_EN(1) | 237 RK3126_LVDS_MSBSEL(1) | RK3126_LVDS_SELECT(lvds->format)); 238 } 239 240 static void rk3126_lvds_disable(struct rockchip_lvds *lvds) 241 { 242 regmap_write(lvds->grf, RK3126_GRF_LVDS_CON0, 243 RK3126_LVDS_P2S_EN(0) | RK3126_LVDS_MODE_EN(0)); 244 } 245 246 static const struct rockchip_lvds_funcs rk3126_lvds_funcs = { 247 .enable = rk3126_lvds_enable, 248 .disable = rk3126_lvds_disable, 249 }; 250 251 static void rk3288_lvds_enable(struct rockchip_lvds *lvds, int pipe) 252 { 253 const struct drm_display_mode *mode = lvds->mode; 254 u32 val; 255 256 regmap_write(lvds->grf, RK3288_GRF_SOC_CON6, 257 RK3288_LVDS_LCDC_SEL(pipe)); 258 259 val = RK3288_LVDS_PWRDWN(0) | RK3288_LVDS_CON_CLKINV(0) | 260 RK3288_LVDS_CON_CHASEL(lvds->dual_channel) | 261 RK3288_LVDS_CON_SELECT(lvds->format); 262 263 if (lvds->dual_channel) { 264 u32 h_bp = mode->htotal - mode->hsync_start; 265 266 val |= RK3288_LVDS_CON_ENABLE_2(1) | 267 RK3288_LVDS_CON_ENABLE_1(1) | 268 RK3288_LVDS_CON_STARTSEL(lvds->data_swap); 269 270 if (h_bp % 2) 271 val |= RK3288_LVDS_CON_STARTPHASE(1); 272 else 273 val |= RK3288_LVDS_CON_STARTPHASE(0); 274 } else { 275 val |= RK3288_LVDS_CON_ENABLE_2(0) | 276 RK3288_LVDS_CON_ENABLE_1(1); 277 } 278 279 regmap_write(lvds->grf, RK3288_GRF_SOC_CON7, val); 280 281 rockchip_phy_set_bus_width(lvds->phy, lvds->dual_channel ? 2 : 1); 282 } 283 284 static void rk3288_lvds_disable(struct rockchip_lvds *lvds) 285 { 286 regmap_write(lvds->grf, RK3288_GRF_SOC_CON7, RK3288_LVDS_PWRDWN(1)); 287 } 288 289 static const struct rockchip_lvds_funcs rk3288_lvds_funcs = { 290 .enable = rk3288_lvds_enable, 291 .disable = rk3288_lvds_disable, 292 }; 293 294 static void rk3368_lvds_enable(struct rockchip_lvds *lvds, int pipe) 295 { 296 regmap_write(lvds->grf, RK3368_GRF_SOC_CON7, 297 RK3368_LVDS_SELECT(lvds->format) | 298 RK3368_LVDS_MODE_EN(1) | RK3368_LVDS_MSBSEL(1) | 299 RK3368_LVDS_P2S_EN(1)); 300 } 301 302 static void rk3368_lvds_disable(struct rockchip_lvds *lvds) 303 { 304 regmap_write(lvds->grf, RK3368_GRF_SOC_CON7, 305 RK3368_LVDS_MODE_EN(0) | RK3368_LVDS_P2S_EN(0)); 306 } 307 308 static const struct rockchip_lvds_funcs rk3368_lvds_funcs = { 309 .enable = rk3368_lvds_enable, 310 .disable = rk3368_lvds_disable, 311 }; 312 313 static void rk3562_lvds_enable(struct rockchip_lvds *lvds, int pipe) 314 { 315 regmap_write(lvds->grf, RK3562_GRF_VO_CON1, 316 RK3568_LVDS0_MODE_EN(1) | RK3568_LVDS0_P2S_EN(1) | 317 RK3568_LVDS0_DCLK_INV_SEL(1)); 318 regmap_write(lvds->grf, RK3562_GRF_VO_CON0, 319 RK3568_LVDS0_SELECT(lvds->format) | RK3568_LVDS0_MSBSEL(1)); 320 } 321 322 static void rk3562_lvds_disable(struct rockchip_lvds *lvds) 323 { 324 regmap_write(lvds->grf, RK3562_GRF_VO_CON1, RK3568_LVDS0_MODE_EN(0)); 325 } 326 327 static const struct rockchip_lvds_funcs rk3562_lvds_funcs = { 328 .enable = rk3562_lvds_enable, 329 .disable = rk3562_lvds_disable, 330 }; 331 332 static void rk3568_lvds_enable(struct rockchip_lvds *lvds, int pipe) 333 { 334 regmap_write(lvds->grf, RK3568_GRF_VO_CON2, 335 RK3568_LVDS0_MODE_EN(1) | RK3568_LVDS0_P2S_EN(1) | 336 RK3568_LVDS0_DCLK_INV_SEL(1)); 337 regmap_write(lvds->grf, RK3568_GRF_VO_CON0, 338 RK3568_LVDS0_SELECT(lvds->format) | RK3568_LVDS0_MSBSEL(1)); 339 } 340 341 static void rk3568_lvds_disable(struct rockchip_lvds *lvds) 342 { 343 regmap_write(lvds->grf, RK3568_GRF_VO_CON2, RK3568_LVDS0_MODE_EN(0)); 344 } 345 346 static const struct rockchip_lvds_funcs rk3568_lvds_funcs = { 347 .enable = rk3568_lvds_enable, 348 .disable = rk3568_lvds_disable, 349 }; 350 351 static const struct udevice_id rockchip_lvds_ids[] = { 352 { 353 .compatible = "rockchip,px30-lvds", 354 .data = (ulong)&px30_lvds_funcs, 355 }, 356 { 357 .compatible = "rockchip,rk3126-lvds", 358 .data = (ulong)&rk3126_lvds_funcs, 359 }, 360 { 361 .compatible = "rockchip,rk3288-lvds", 362 .data = (ulong)&rk3288_lvds_funcs, 363 }, 364 { 365 .compatible = "rockchip,rk3368-lvds", 366 .data = (ulong)&rk3368_lvds_funcs, 367 }, 368 { 369 .compatible = "rockchip,rk3562-lvds", 370 .data = (ulong)&rk3562_lvds_funcs, 371 }, 372 { 373 .compatible = "rockchip,rk3568-lvds", 374 .data = (ulong)&rk3568_lvds_funcs, 375 }, 376 {} 377 }; 378 379 U_BOOT_DRIVER(rockchip_lvds) = { 380 .name = "rockchip_lvds", 381 .id = UCLASS_DISPLAY, 382 .of_match = rockchip_lvds_ids, 383 .probe = rockchip_lvds_probe, 384 .priv_auto_alloc_size = sizeof(struct rockchip_lvds), 385 }; 386