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_RGB888_1X24: 122 case MEDIA_BUS_FMT_RGB666_1X24_CPADHI: 123 default: 124 conn_state->output_mode = ROCKCHIP_OUT_MODE_P888; 125 break; 126 } 127 128 return 0; 129 } 130 131 static const struct rockchip_connector_funcs rockchip_rgb_connector_funcs = { 132 .init = rockchip_rgb_connector_init, 133 .enable = rockchip_rgb_connector_enable, 134 .disable = rockchip_rgb_connector_disable, 135 }; 136 137 static int rockchip_rgb_probe(struct udevice *dev) 138 { 139 struct rockchip_rgb *rgb = dev_get_priv(dev); 140 const struct rockchip_connector *connector = 141 (const struct rockchip_connector *)dev_get_driver_data(dev); 142 143 rgb->dev = dev; 144 rgb->funcs = connector->data; 145 rgb->grf = syscon_get_regmap(dev_get_parent(dev)); 146 rgb->data_sync = dev_read_bool(dev, "rockchip,data-sync"); 147 148 return 0; 149 } 150 151 static void px30_rgb_enable(struct rockchip_rgb *rgb, int pipe) 152 { 153 regmap_write(rgb->grf, PX30_GRF_PD_VO_CON1, PX30_RGB_VOP_SEL(pipe) | 154 PX30_RGB_DATA_SYNC_BYPASS(!rgb->data_sync)); 155 } 156 157 static const struct rockchip_rgb_funcs px30_rgb_funcs = { 158 .enable = px30_rgb_enable, 159 }; 160 161 static const struct rockchip_connector px30_rgb_driver_data = { 162 .funcs = &rockchip_rgb_connector_funcs, 163 .data = &px30_rgb_funcs, 164 }; 165 166 static void rk1808_rgb_enable(struct rockchip_rgb *rgb, int pipe) 167 { 168 regmap_write(rgb->grf, RK1808_GRF_PD_VO_CON1, 169 RK1808_RGB_DATA_SYNC_BYPASS(!rgb->data_sync)); 170 } 171 172 static const struct rockchip_rgb_funcs rk1808_rgb_funcs = { 173 .enable = rk1808_rgb_enable, 174 }; 175 176 static const struct rockchip_connector rk1808_rgb_driver_data = { 177 .funcs = &rockchip_rgb_connector_funcs, 178 .data = &rk1808_rgb_funcs, 179 }; 180 181 static void rk3288_rgb_enable(struct rockchip_rgb *rgb, int pipe) 182 { 183 regmap_write(rgb->grf, RK3288_GRF_SOC_CON6, RK3288_LVDS_LCDC_SEL(pipe)); 184 regmap_write(rgb->grf, RK3288_GRF_SOC_CON7, 185 RK3288_LVDS_PWRDWN(0) | RK3288_LVDS_CON_ENABLE_2(1) | 186 RK3288_LVDS_CON_ENABLE_1(1) | RK3288_LVDS_CON_CLKINV(0) | 187 RK3288_LVDS_CON_TTL_EN(1)); 188 } 189 190 static void rk3288_rgb_disable(struct rockchip_rgb *rgb) 191 { 192 regmap_write(rgb->grf, RK3288_GRF_SOC_CON7, 193 RK3288_LVDS_PWRDWN(1) | RK3288_LVDS_CON_ENABLE_2(0) | 194 RK3288_LVDS_CON_ENABLE_1(0) | RK3288_LVDS_CON_TTL_EN(0)); 195 } 196 197 static const struct rockchip_rgb_funcs rk3288_rgb_funcs = { 198 .enable = rk3288_rgb_enable, 199 .disable = rk3288_rgb_disable, 200 }; 201 202 static const struct rockchip_connector rk3288_rgb_driver_data = { 203 .funcs = &rockchip_rgb_connector_funcs, 204 .data = &rk3288_rgb_funcs, 205 }; 206 207 static void rk3368_rgb_enable(struct rockchip_rgb *rgb, int pipe) 208 { 209 regmap_write(rgb->grf, RK3368_GRF_SOC_CON15, RK3368_FORCE_JETAG(0)); 210 } 211 212 static const struct rockchip_rgb_funcs rk3368_rgb_funcs = { 213 .enable = rk3368_rgb_enable, 214 }; 215 216 static const struct rockchip_connector rk3368_rgb_driver_data = { 217 .funcs = &rockchip_rgb_connector_funcs, 218 .data = &rk3368_rgb_funcs, 219 }; 220 221 static const struct rockchip_connector rockchip_rgb_driver_data = { 222 .funcs = &rockchip_rgb_connector_funcs, 223 }; 224 225 static const struct udevice_id rockchip_rgb_ids[] = { 226 { 227 .compatible = "rockchip,px30-rgb", 228 .data = (ulong)&px30_rgb_driver_data, 229 }, 230 { 231 .compatible = "rockchip,rk1808-rgb", 232 .data = (ulong)&rk1808_rgb_driver_data, 233 }, 234 { 235 .compatible = "rockchip,rk3066-rgb", 236 .data = (ulong)&rockchip_rgb_driver_data, 237 }, 238 { 239 .compatible = "rockchip,rk3128-rgb", 240 .data = (ulong)&rockchip_rgb_driver_data, 241 }, 242 { 243 .compatible = "rockchip,rk3288-rgb", 244 .data = (ulong)&rk3288_rgb_driver_data, 245 }, 246 { 247 .compatible = "rockchip,rk3308-rgb", 248 .data = (ulong)&rockchip_rgb_driver_data, 249 }, 250 { 251 .compatible = "rockchip,rk3368-rgb", 252 .data = (ulong)&rk3368_rgb_driver_data, 253 }, 254 { 255 .compatible = "rockchip,rv1108-rgb", 256 .data = (ulong)&rockchip_rgb_driver_data, 257 }, 258 {} 259 }; 260 261 U_BOOT_DRIVER(rockchip_rgb) = { 262 .name = "rockchip_rgb", 263 .id = UCLASS_DISPLAY, 264 .of_match = rockchip_rgb_ids, 265 .probe = rockchip_rgb_probe, 266 .priv_auto_alloc_size = sizeof(struct rockchip_rgb), 267 }; 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