1 /* 2 * (C) Copyright 2008-2017 Fuzhou Rockchip Electronics Co., Ltd 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <errno.h> 9 #include <syscon.h> 10 #include <regmap.h> 11 #include <dm/device.h> 12 #include <dm/read.h> 13 #include <dm/pinctrl.h> 14 #include <linux/media-bus-format.h> 15 16 #include "rockchip_display.h" 17 #include "rockchip_crtc.h" 18 #include "rockchip_connector.h" 19 #include "rockchip_phy.h" 20 21 #define HIWORD_UPDATE(v, h, l) (((v) << (l)) | (GENMASK(h, l) << 16)) 22 23 #define PX30_GRF_PD_VO_CON1 0x0438 24 #define PX30_RGB_DATA_SYNC_BYPASS(v) HIWORD_UPDATE(v, 3, 3) 25 #define PX30_RGB_VOP_SEL(v) HIWORD_UPDATE(v, 2, 2) 26 27 #define RK1808_GRF_PD_VO_CON1 0x0444 28 #define RK1808_RGB_DATA_SYNC_BYPASS(v) HIWORD_UPDATE(v, 3, 3) 29 30 #define RV1126_GRF_IOFUNC_CON3 0x1026c 31 #define RV1126_LCDC_IO_BYPASS(v) HIWORD_UPDATE(v, 0, 0) 32 33 #define RK3288_GRF_SOC_CON6 0x025c 34 #define RK3288_LVDS_LCDC_SEL(v) HIWORD_UPDATE(v, 3, 3) 35 #define RK3288_GRF_SOC_CON7 0x0260 36 #define RK3288_LVDS_PWRDWN(v) HIWORD_UPDATE(v, 15, 15) 37 #define RK3288_LVDS_CON_ENABLE_2(v) HIWORD_UPDATE(v, 12, 12) 38 #define RK3288_LVDS_CON_ENABLE_1(v) HIWORD_UPDATE(v, 11, 11) 39 #define RK3288_LVDS_CON_CLKINV(v) HIWORD_UPDATE(v, 8, 8) 40 #define RK3288_LVDS_CON_TTL_EN(v) HIWORD_UPDATE(v, 6, 6) 41 42 #define RK3368_GRF_SOC_CON15 0x043c 43 #define RK3368_FORCE_JETAG(v) HIWORD_UPDATE(v, 13, 13) 44 45 struct rockchip_rgb; 46 47 struct rockchip_rgb_funcs { 48 void (*prepare)(struct rockchip_rgb *rgb, int pipe); 49 void (*unprepare)(struct rockchip_rgb *rgb); 50 }; 51 52 struct rockchip_rgb { 53 struct udevice *dev; 54 struct regmap *grf; 55 bool data_sync_bypass; 56 struct rockchip_phy *phy; 57 const struct rockchip_rgb_funcs *funcs; 58 }; 59 60 static inline struct rockchip_rgb *state_to_rgb(struct display_state *state) 61 { 62 struct connector_state *conn_state = &state->conn_state; 63 64 return dev_get_priv(conn_state->dev); 65 } 66 67 static int rockchip_rgb_connector_prepare(struct display_state *state) 68 { 69 struct rockchip_rgb *rgb = state_to_rgb(state); 70 struct crtc_state *crtc_state = &state->crtc_state; 71 int pipe = crtc_state->crtc_id; 72 int ret; 73 74 pinctrl_select_state(rgb->dev, "default"); 75 76 if (rgb->funcs && rgb->funcs->prepare) 77 rgb->funcs->prepare(rgb, pipe); 78 79 if (rgb->phy) { 80 ret = rockchip_phy_set_mode(rgb->phy, PHY_MODE_VIDEO_TTL); 81 if (ret) { 82 dev_err(rgb->dev, "failed to set phy mode: %d\n", ret); 83 return ret; 84 } 85 86 rockchip_phy_power_on(rgb->phy); 87 } 88 89 return 0; 90 } 91 92 static void rockchip_rgb_connector_unprepare(struct display_state *state) 93 { 94 struct rockchip_rgb *rgb = state_to_rgb(state); 95 96 if (rgb->phy) 97 rockchip_phy_power_off(rgb->phy); 98 99 if (rgb->funcs && rgb->funcs->unprepare) 100 rgb->funcs->unprepare(rgb); 101 102 pinctrl_select_state(rgb->dev, "sleep"); 103 } 104 105 static int rockchip_rgb_connector_init(struct display_state *state) 106 { 107 struct rockchip_rgb *rgb = state_to_rgb(state); 108 struct connector_state *conn_state = &state->conn_state; 109 110 rgb->phy = conn_state->phy; 111 112 conn_state->type = DRM_MODE_CONNECTOR_LVDS; 113 conn_state->color_space = V4L2_COLORSPACE_DEFAULT; 114 115 switch (conn_state->bus_format) { 116 case MEDIA_BUS_FMT_RGB666_1X18: 117 conn_state->output_mode = ROCKCHIP_OUT_MODE_P666; 118 break; 119 case MEDIA_BUS_FMT_RGB565_1X16: 120 conn_state->output_mode = ROCKCHIP_OUT_MODE_P565; 121 break; 122 case MEDIA_BUS_FMT_SRGB888_3X8: 123 case MEDIA_BUS_FMT_SBGR888_3X8: 124 case MEDIA_BUS_FMT_SRBG888_3X8: 125 conn_state->output_mode = ROCKCHIP_OUT_MODE_S888; 126 break; 127 case MEDIA_BUS_FMT_SRGB888_DUMMY_4X8: 128 case MEDIA_BUS_FMT_SBGR888_DUMMY_4X8: 129 case MEDIA_BUS_FMT_SRBG888_DUMMY_4X8: 130 conn_state->output_mode = ROCKCHIP_OUT_MODE_S888_DUMMY; 131 break; 132 case MEDIA_BUS_FMT_RGB888_1X24: 133 case MEDIA_BUS_FMT_RGB666_1X24_CPADHI: 134 default: 135 conn_state->output_mode = ROCKCHIP_OUT_MODE_P888; 136 break; 137 } 138 139 return 0; 140 } 141 142 static const struct rockchip_connector_funcs rockchip_rgb_connector_funcs = { 143 .init = rockchip_rgb_connector_init, 144 .prepare = rockchip_rgb_connector_prepare, 145 .unprepare = rockchip_rgb_connector_unprepare, 146 }; 147 148 static int rockchip_rgb_probe(struct udevice *dev) 149 { 150 struct rockchip_rgb *rgb = dev_get_priv(dev); 151 const struct rockchip_connector *connector = 152 (const struct rockchip_connector *)dev_get_driver_data(dev); 153 154 rgb->dev = dev; 155 rgb->funcs = connector->data; 156 rgb->grf = syscon_get_regmap(dev_get_parent(dev)); 157 rgb->data_sync_bypass = dev_read_bool(dev, "rockchip,data-sync-bypass"); 158 159 return 0; 160 } 161 162 static void rv1126_rgb_prepare(struct rockchip_rgb *rgb, int pipe) 163 { 164 regmap_write(rgb->grf, RV1126_GRF_IOFUNC_CON3, 165 RV1126_LCDC_IO_BYPASS(rgb->data_sync_bypass)); 166 } 167 168 static const struct rockchip_rgb_funcs rv1126_rgb_funcs = { 169 .prepare = rv1126_rgb_prepare, 170 }; 171 172 static const struct rockchip_connector rv1126_rgb_driver_data = { 173 .funcs = &rockchip_rgb_connector_funcs, 174 .data = &rv1126_rgb_funcs, 175 }; 176 177 static void px30_rgb_prepare(struct rockchip_rgb *rgb, int pipe) 178 { 179 regmap_write(rgb->grf, PX30_GRF_PD_VO_CON1, PX30_RGB_VOP_SEL(pipe) | 180 PX30_RGB_DATA_SYNC_BYPASS(rgb->data_sync_bypass)); 181 } 182 183 static const struct rockchip_rgb_funcs px30_rgb_funcs = { 184 .prepare = px30_rgb_prepare, 185 }; 186 187 static const struct rockchip_connector px30_rgb_driver_data = { 188 .funcs = &rockchip_rgb_connector_funcs, 189 .data = &px30_rgb_funcs, 190 }; 191 192 static void rk1808_rgb_prepare(struct rockchip_rgb *rgb, int pipe) 193 { 194 regmap_write(rgb->grf, RK1808_GRF_PD_VO_CON1, 195 RK1808_RGB_DATA_SYNC_BYPASS(rgb->data_sync_bypass)); 196 } 197 198 static const struct rockchip_rgb_funcs rk1808_rgb_funcs = { 199 .prepare = rk1808_rgb_prepare, 200 }; 201 202 static const struct rockchip_connector rk1808_rgb_driver_data = { 203 .funcs = &rockchip_rgb_connector_funcs, 204 .data = &rk1808_rgb_funcs, 205 }; 206 207 static void rk3288_rgb_prepare(struct rockchip_rgb *rgb, int pipe) 208 { 209 regmap_write(rgb->grf, RK3288_GRF_SOC_CON6, RK3288_LVDS_LCDC_SEL(pipe)); 210 regmap_write(rgb->grf, RK3288_GRF_SOC_CON7, 211 RK3288_LVDS_PWRDWN(0) | RK3288_LVDS_CON_ENABLE_2(1) | 212 RK3288_LVDS_CON_ENABLE_1(1) | RK3288_LVDS_CON_CLKINV(0) | 213 RK3288_LVDS_CON_TTL_EN(1)); 214 } 215 216 static void rk3288_rgb_unprepare(struct rockchip_rgb *rgb) 217 { 218 regmap_write(rgb->grf, RK3288_GRF_SOC_CON7, 219 RK3288_LVDS_PWRDWN(1) | RK3288_LVDS_CON_ENABLE_2(0) | 220 RK3288_LVDS_CON_ENABLE_1(0) | RK3288_LVDS_CON_TTL_EN(0)); 221 } 222 223 static const struct rockchip_rgb_funcs rk3288_rgb_funcs = { 224 .prepare = rk3288_rgb_prepare, 225 .unprepare = rk3288_rgb_unprepare, 226 }; 227 228 static const struct rockchip_connector rk3288_rgb_driver_data = { 229 .funcs = &rockchip_rgb_connector_funcs, 230 .data = &rk3288_rgb_funcs, 231 }; 232 233 static void rk3368_rgb_prepare(struct rockchip_rgb *rgb, int pipe) 234 { 235 regmap_write(rgb->grf, RK3368_GRF_SOC_CON15, RK3368_FORCE_JETAG(0)); 236 } 237 238 static const struct rockchip_rgb_funcs rk3368_rgb_funcs = { 239 .prepare = rk3368_rgb_prepare, 240 }; 241 242 static const struct rockchip_connector rk3368_rgb_driver_data = { 243 .funcs = &rockchip_rgb_connector_funcs, 244 .data = &rk3368_rgb_funcs, 245 }; 246 247 static const struct rockchip_connector rockchip_rgb_driver_data = { 248 .funcs = &rockchip_rgb_connector_funcs, 249 }; 250 251 static const struct udevice_id rockchip_rgb_ids[] = { 252 { 253 .compatible = "rockchip,px30-rgb", 254 .data = (ulong)&px30_rgb_driver_data, 255 }, 256 { 257 .compatible = "rockchip,rk1808-rgb", 258 .data = (ulong)&rk1808_rgb_driver_data, 259 }, 260 { 261 .compatible = "rockchip,rk3066-rgb", 262 .data = (ulong)&rockchip_rgb_driver_data, 263 }, 264 { 265 .compatible = "rockchip,rk3128-rgb", 266 .data = (ulong)&rockchip_rgb_driver_data, 267 }, 268 { 269 .compatible = "rockchip,rk3288-rgb", 270 .data = (ulong)&rk3288_rgb_driver_data, 271 }, 272 { 273 .compatible = "rockchip,rk3308-rgb", 274 .data = (ulong)&rockchip_rgb_driver_data, 275 }, 276 { 277 .compatible = "rockchip,rk3368-rgb", 278 .data = (ulong)&rk3368_rgb_driver_data, 279 }, 280 { 281 .compatible = "rockchip,rv1108-rgb", 282 .data = (ulong)&rockchip_rgb_driver_data, 283 }, 284 { 285 .compatible = "rockchip,rv1126-rgb", 286 .data = (ulong)&rv1126_rgb_driver_data, 287 }, 288 {} 289 }; 290 291 U_BOOT_DRIVER(rockchip_rgb) = { 292 .name = "rockchip_rgb", 293 .id = UCLASS_DISPLAY, 294 .of_match = rockchip_rgb_ids, 295 .probe = rockchip_rgb_probe, 296 .priv_auto_alloc_size = sizeof(struct rockchip_rgb), 297 }; 298