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 RK3288_GRF_SOC_CON6 0x025c 31 #define RK3288_LVDS_LCDC_SEL(v) HIWORD_UPDATE(v, 3, 3) 32 #define RK3288_GRF_SOC_CON7 0x0260 33 #define RK3288_LVDS_PWRDWN(v) HIWORD_UPDATE(v, 15, 15) 34 #define RK3288_LVDS_CON_ENABLE_2(v) HIWORD_UPDATE(v, 12, 12) 35 #define RK3288_LVDS_CON_ENABLE_1(v) HIWORD_UPDATE(v, 11, 11) 36 #define RK3288_LVDS_CON_CLKINV(v) HIWORD_UPDATE(v, 8, 8) 37 #define RK3288_LVDS_CON_TTL_EN(v) HIWORD_UPDATE(v, 6, 6) 38 39 #define RK3368_GRF_SOC_CON15 0x043c 40 #define RK3368_FORCE_JETAG(v) HIWORD_UPDATE(v, 13, 13) 41 42 struct rockchip_rgb; 43 44 struct rockchip_rgb_funcs { 45 void (*enable)(struct rockchip_rgb *rgb, int pipe); 46 void (*disable)(struct rockchip_rgb *rgb); 47 }; 48 49 struct rockchip_rgb { 50 struct udevice *dev; 51 struct regmap *grf; 52 bool data_sync; 53 struct rockchip_phy *phy; 54 const struct rockchip_rgb_funcs *funcs; 55 }; 56 57 static inline struct rockchip_rgb *state_to_rgb(struct display_state *state) 58 { 59 struct connector_state *conn_state = &state->conn_state; 60 61 return dev_get_priv(conn_state->dev); 62 } 63 64 static int rockchip_rgb_connector_enable(struct display_state *state) 65 { 66 struct rockchip_rgb *rgb = state_to_rgb(state); 67 struct crtc_state *crtc_state = &state->crtc_state; 68 int pipe = crtc_state->crtc_id; 69 int ret; 70 71 pinctrl_select_state(rgb->dev, "default"); 72 73 if (rgb->funcs && rgb->funcs->enable) 74 rgb->funcs->enable(rgb, pipe); 75 76 if (rgb->phy) { 77 ret = rockchip_phy_set_mode(rgb->phy, PHY_MODE_VIDEO_TTL); 78 if (ret) { 79 dev_err(rgb->dev, "failed to set phy mode: %d\n", ret); 80 return ret; 81 } 82 83 rockchip_phy_power_on(rgb->phy); 84 } 85 86 return 0; 87 } 88 89 static int rockchip_rgb_connector_disable(struct display_state *state) 90 { 91 struct rockchip_rgb *rgb = state_to_rgb(state); 92 93 if (rgb->phy) 94 rockchip_phy_power_off(rgb->phy); 95 96 if (rgb->funcs && rgb->funcs->disable) 97 rgb->funcs->disable(rgb); 98 99 pinctrl_select_state(rgb->dev, "sleep"); 100 101 return 0; 102 } 103 104 static int rockchip_rgb_connector_init(struct display_state *state) 105 { 106 struct rockchip_rgb *rgb = state_to_rgb(state); 107 struct connector_state *conn_state = &state->conn_state; 108 109 rgb->phy = conn_state->phy; 110 111 conn_state->type = DRM_MODE_CONNECTOR_LVDS; 112 conn_state->color_space = V4L2_COLORSPACE_DEFAULT; 113 114 switch (conn_state->bus_format) { 115 case MEDIA_BUS_FMT_RGB666_1X18: 116 conn_state->output_mode = ROCKCHIP_OUT_MODE_P666; 117 break; 118 case MEDIA_BUS_FMT_RGB565_1X16: 119 conn_state->output_mode = ROCKCHIP_OUT_MODE_P565; 120 break; 121 case MEDIA_BUS_FMT_SRGB888_3X8: 122 case MEDIA_BUS_FMT_SBGR888_3X8: 123 case MEDIA_BUS_FMT_SRBG888_3X8: 124 conn_state->output_mode = ROCKCHIP_OUT_MODE_S888; 125 break; 126 case MEDIA_BUS_FMT_RGB888_1X24: 127 case MEDIA_BUS_FMT_RGB666_1X24_CPADHI: 128 default: 129 conn_state->output_mode = ROCKCHIP_OUT_MODE_P888; 130 break; 131 } 132 133 return 0; 134 } 135 136 static const struct rockchip_connector_funcs rockchip_rgb_connector_funcs = { 137 .init = rockchip_rgb_connector_init, 138 .enable = rockchip_rgb_connector_enable, 139 .disable = rockchip_rgb_connector_disable, 140 }; 141 142 static int rockchip_rgb_probe(struct udevice *dev) 143 { 144 struct rockchip_rgb *rgb = dev_get_priv(dev); 145 const struct rockchip_connector *connector = 146 (const struct rockchip_connector *)dev_get_driver_data(dev); 147 148 rgb->dev = dev; 149 rgb->funcs = connector->data; 150 rgb->grf = syscon_get_regmap(dev_get_parent(dev)); 151 rgb->data_sync = dev_read_bool(dev, "rockchip,data-sync"); 152 153 return 0; 154 } 155 156 static void px30_rgb_enable(struct rockchip_rgb *rgb, int pipe) 157 { 158 regmap_write(rgb->grf, PX30_GRF_PD_VO_CON1, PX30_RGB_VOP_SEL(pipe) | 159 PX30_RGB_DATA_SYNC_BYPASS(!rgb->data_sync)); 160 } 161 162 static const struct rockchip_rgb_funcs px30_rgb_funcs = { 163 .enable = px30_rgb_enable, 164 }; 165 166 static const struct rockchip_connector px30_rgb_driver_data = { 167 .funcs = &rockchip_rgb_connector_funcs, 168 .data = &px30_rgb_funcs, 169 }; 170 171 static void rk1808_rgb_enable(struct rockchip_rgb *rgb, int pipe) 172 { 173 regmap_write(rgb->grf, RK1808_GRF_PD_VO_CON1, 174 RK1808_RGB_DATA_SYNC_BYPASS(!rgb->data_sync)); 175 } 176 177 static const struct rockchip_rgb_funcs rk1808_rgb_funcs = { 178 .enable = rk1808_rgb_enable, 179 }; 180 181 static const struct rockchip_connector rk1808_rgb_driver_data = { 182 .funcs = &rockchip_rgb_connector_funcs, 183 .data = &rk1808_rgb_funcs, 184 }; 185 186 static void rk3288_rgb_enable(struct rockchip_rgb *rgb, int pipe) 187 { 188 regmap_write(rgb->grf, RK3288_GRF_SOC_CON6, RK3288_LVDS_LCDC_SEL(pipe)); 189 regmap_write(rgb->grf, RK3288_GRF_SOC_CON7, 190 RK3288_LVDS_PWRDWN(0) | RK3288_LVDS_CON_ENABLE_2(1) | 191 RK3288_LVDS_CON_ENABLE_1(1) | RK3288_LVDS_CON_CLKINV(0) | 192 RK3288_LVDS_CON_TTL_EN(1)); 193 } 194 195 static void rk3288_rgb_disable(struct rockchip_rgb *rgb) 196 { 197 regmap_write(rgb->grf, RK3288_GRF_SOC_CON7, 198 RK3288_LVDS_PWRDWN(1) | RK3288_LVDS_CON_ENABLE_2(0) | 199 RK3288_LVDS_CON_ENABLE_1(0) | RK3288_LVDS_CON_TTL_EN(0)); 200 } 201 202 static const struct rockchip_rgb_funcs rk3288_rgb_funcs = { 203 .enable = rk3288_rgb_enable, 204 .disable = rk3288_rgb_disable, 205 }; 206 207 static const struct rockchip_connector rk3288_rgb_driver_data = { 208 .funcs = &rockchip_rgb_connector_funcs, 209 .data = &rk3288_rgb_funcs, 210 }; 211 212 static void rk3368_rgb_enable(struct rockchip_rgb *rgb, int pipe) 213 { 214 regmap_write(rgb->grf, RK3368_GRF_SOC_CON15, RK3368_FORCE_JETAG(0)); 215 } 216 217 static const struct rockchip_rgb_funcs rk3368_rgb_funcs = { 218 .enable = rk3368_rgb_enable, 219 }; 220 221 static const struct rockchip_connector rk3368_rgb_driver_data = { 222 .funcs = &rockchip_rgb_connector_funcs, 223 .data = &rk3368_rgb_funcs, 224 }; 225 226 static const struct rockchip_connector rockchip_rgb_driver_data = { 227 .funcs = &rockchip_rgb_connector_funcs, 228 }; 229 230 static const struct udevice_id rockchip_rgb_ids[] = { 231 { 232 .compatible = "rockchip,px30-rgb", 233 .data = (ulong)&px30_rgb_driver_data, 234 }, 235 { 236 .compatible = "rockchip,rk1808-rgb", 237 .data = (ulong)&rk1808_rgb_driver_data, 238 }, 239 { 240 .compatible = "rockchip,rk3066-rgb", 241 .data = (ulong)&rockchip_rgb_driver_data, 242 }, 243 { 244 .compatible = "rockchip,rk3128-rgb", 245 .data = (ulong)&rockchip_rgb_driver_data, 246 }, 247 { 248 .compatible = "rockchip,rk3288-rgb", 249 .data = (ulong)&rk3288_rgb_driver_data, 250 }, 251 { 252 .compatible = "rockchip,rk3308-rgb", 253 .data = (ulong)&rockchip_rgb_driver_data, 254 }, 255 { 256 .compatible = "rockchip,rk3368-rgb", 257 .data = (ulong)&rk3368_rgb_driver_data, 258 }, 259 { 260 .compatible = "rockchip,rv1108-rgb", 261 .data = (ulong)&rockchip_rgb_driver_data, 262 }, 263 {} 264 }; 265 266 U_BOOT_DRIVER(rockchip_rgb) = { 267 .name = "rockchip_rgb", 268 .id = UCLASS_DISPLAY, 269 .of_match = rockchip_rgb_ids, 270 .probe = rockchip_rgb_probe, 271 .priv_auto_alloc_size = sizeof(struct rockchip_rgb), 272 }; 273