1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2017-2018, Bootlin 4 */ 5 6 #include <linux/delay.h> 7 #include <linux/device.h> 8 #include <linux/err.h> 9 #include <linux/errno.h> 10 #include <linux/fb.h> 11 #include <linux/kernel.h> 12 #include <linux/module.h> 13 #include <linux/of_device.h> 14 15 #include <linux/gpio/consumer.h> 16 #include <linux/regulator/consumer.h> 17 18 #include <drm/drm_mipi_dsi.h> 19 #include <drm/drm_modes.h> 20 #include <drm/drm_panel.h> 21 22 #include <video/mipi_display.h> 23 24 enum ili9881c_op { 25 ILI9881C_SWITCH_PAGE, 26 ILI9881C_COMMAND, 27 }; 28 29 struct ili9881c_instr { 30 enum ili9881c_op op; 31 32 union arg { 33 struct cmd { 34 u8 cmd; 35 u8 data; 36 } cmd; 37 u8 page; 38 } arg; 39 }; 40 41 struct ili9881c_desc { 42 const struct ili9881c_instr *init; 43 const size_t init_length; 44 const struct drm_display_mode *mode; 45 }; 46 47 struct ili9881c { 48 struct drm_panel panel; 49 struct mipi_dsi_device *dsi; 50 const struct ili9881c_desc *desc; 51 52 struct regulator *power; 53 struct gpio_desc *reset; 54 }; 55 56 #define ILI9881C_SWITCH_PAGE_INSTR(_page) \ 57 { \ 58 .op = ILI9881C_SWITCH_PAGE, \ 59 .arg = { \ 60 .page = (_page), \ 61 }, \ 62 } 63 64 #define ILI9881C_COMMAND_INSTR(_cmd, _data) \ 65 { \ 66 .op = ILI9881C_COMMAND, \ 67 .arg = { \ 68 .cmd = { \ 69 .cmd = (_cmd), \ 70 .data = (_data), \ 71 }, \ 72 }, \ 73 } 74 75 static const struct ili9881c_instr lhr050h41_init[] = { 76 ILI9881C_SWITCH_PAGE_INSTR(3), 77 ILI9881C_COMMAND_INSTR(0x01, 0x00), 78 ILI9881C_COMMAND_INSTR(0x02, 0x00), 79 ILI9881C_COMMAND_INSTR(0x03, 0x73), 80 ILI9881C_COMMAND_INSTR(0x04, 0x03), 81 ILI9881C_COMMAND_INSTR(0x05, 0x00), 82 ILI9881C_COMMAND_INSTR(0x06, 0x06), 83 ILI9881C_COMMAND_INSTR(0x07, 0x06), 84 ILI9881C_COMMAND_INSTR(0x08, 0x00), 85 ILI9881C_COMMAND_INSTR(0x09, 0x18), 86 ILI9881C_COMMAND_INSTR(0x0a, 0x04), 87 ILI9881C_COMMAND_INSTR(0x0b, 0x00), 88 ILI9881C_COMMAND_INSTR(0x0c, 0x02), 89 ILI9881C_COMMAND_INSTR(0x0d, 0x03), 90 ILI9881C_COMMAND_INSTR(0x0e, 0x00), 91 ILI9881C_COMMAND_INSTR(0x0f, 0x25), 92 ILI9881C_COMMAND_INSTR(0x10, 0x25), 93 ILI9881C_COMMAND_INSTR(0x11, 0x00), 94 ILI9881C_COMMAND_INSTR(0x12, 0x00), 95 ILI9881C_COMMAND_INSTR(0x13, 0x00), 96 ILI9881C_COMMAND_INSTR(0x14, 0x00), 97 ILI9881C_COMMAND_INSTR(0x15, 0x00), 98 ILI9881C_COMMAND_INSTR(0x16, 0x0C), 99 ILI9881C_COMMAND_INSTR(0x17, 0x00), 100 ILI9881C_COMMAND_INSTR(0x18, 0x00), 101 ILI9881C_COMMAND_INSTR(0x19, 0x00), 102 ILI9881C_COMMAND_INSTR(0x1a, 0x00), 103 ILI9881C_COMMAND_INSTR(0x1b, 0x00), 104 ILI9881C_COMMAND_INSTR(0x1c, 0x00), 105 ILI9881C_COMMAND_INSTR(0x1d, 0x00), 106 ILI9881C_COMMAND_INSTR(0x1e, 0xC0), 107 ILI9881C_COMMAND_INSTR(0x1f, 0x80), 108 ILI9881C_COMMAND_INSTR(0x20, 0x04), 109 ILI9881C_COMMAND_INSTR(0x21, 0x01), 110 ILI9881C_COMMAND_INSTR(0x22, 0x00), 111 ILI9881C_COMMAND_INSTR(0x23, 0x00), 112 ILI9881C_COMMAND_INSTR(0x24, 0x00), 113 ILI9881C_COMMAND_INSTR(0x25, 0x00), 114 ILI9881C_COMMAND_INSTR(0x26, 0x00), 115 ILI9881C_COMMAND_INSTR(0x27, 0x00), 116 ILI9881C_COMMAND_INSTR(0x28, 0x33), 117 ILI9881C_COMMAND_INSTR(0x29, 0x03), 118 ILI9881C_COMMAND_INSTR(0x2a, 0x00), 119 ILI9881C_COMMAND_INSTR(0x2b, 0x00), 120 ILI9881C_COMMAND_INSTR(0x2c, 0x00), 121 ILI9881C_COMMAND_INSTR(0x2d, 0x00), 122 ILI9881C_COMMAND_INSTR(0x2e, 0x00), 123 ILI9881C_COMMAND_INSTR(0x2f, 0x00), 124 ILI9881C_COMMAND_INSTR(0x30, 0x00), 125 ILI9881C_COMMAND_INSTR(0x31, 0x00), 126 ILI9881C_COMMAND_INSTR(0x32, 0x00), 127 ILI9881C_COMMAND_INSTR(0x33, 0x00), 128 ILI9881C_COMMAND_INSTR(0x34, 0x04), 129 ILI9881C_COMMAND_INSTR(0x35, 0x00), 130 ILI9881C_COMMAND_INSTR(0x36, 0x00), 131 ILI9881C_COMMAND_INSTR(0x37, 0x00), 132 ILI9881C_COMMAND_INSTR(0x38, 0x3C), 133 ILI9881C_COMMAND_INSTR(0x39, 0x00), 134 ILI9881C_COMMAND_INSTR(0x3a, 0x00), 135 ILI9881C_COMMAND_INSTR(0x3b, 0x00), 136 ILI9881C_COMMAND_INSTR(0x3c, 0x00), 137 ILI9881C_COMMAND_INSTR(0x3d, 0x00), 138 ILI9881C_COMMAND_INSTR(0x3e, 0x00), 139 ILI9881C_COMMAND_INSTR(0x3f, 0x00), 140 ILI9881C_COMMAND_INSTR(0x40, 0x00), 141 ILI9881C_COMMAND_INSTR(0x41, 0x00), 142 ILI9881C_COMMAND_INSTR(0x42, 0x00), 143 ILI9881C_COMMAND_INSTR(0x43, 0x00), 144 ILI9881C_COMMAND_INSTR(0x44, 0x00), 145 ILI9881C_COMMAND_INSTR(0x50, 0x01), 146 ILI9881C_COMMAND_INSTR(0x51, 0x23), 147 ILI9881C_COMMAND_INSTR(0x52, 0x45), 148 ILI9881C_COMMAND_INSTR(0x53, 0x67), 149 ILI9881C_COMMAND_INSTR(0x54, 0x89), 150 ILI9881C_COMMAND_INSTR(0x55, 0xab), 151 ILI9881C_COMMAND_INSTR(0x56, 0x01), 152 ILI9881C_COMMAND_INSTR(0x57, 0x23), 153 ILI9881C_COMMAND_INSTR(0x58, 0x45), 154 ILI9881C_COMMAND_INSTR(0x59, 0x67), 155 ILI9881C_COMMAND_INSTR(0x5a, 0x89), 156 ILI9881C_COMMAND_INSTR(0x5b, 0xab), 157 ILI9881C_COMMAND_INSTR(0x5c, 0xcd), 158 ILI9881C_COMMAND_INSTR(0x5d, 0xef), 159 ILI9881C_COMMAND_INSTR(0x5e, 0x11), 160 ILI9881C_COMMAND_INSTR(0x5f, 0x02), 161 ILI9881C_COMMAND_INSTR(0x60, 0x02), 162 ILI9881C_COMMAND_INSTR(0x61, 0x02), 163 ILI9881C_COMMAND_INSTR(0x62, 0x02), 164 ILI9881C_COMMAND_INSTR(0x63, 0x02), 165 ILI9881C_COMMAND_INSTR(0x64, 0x02), 166 ILI9881C_COMMAND_INSTR(0x65, 0x02), 167 ILI9881C_COMMAND_INSTR(0x66, 0x02), 168 ILI9881C_COMMAND_INSTR(0x67, 0x02), 169 ILI9881C_COMMAND_INSTR(0x68, 0x02), 170 ILI9881C_COMMAND_INSTR(0x69, 0x02), 171 ILI9881C_COMMAND_INSTR(0x6a, 0x0C), 172 ILI9881C_COMMAND_INSTR(0x6b, 0x02), 173 ILI9881C_COMMAND_INSTR(0x6c, 0x0F), 174 ILI9881C_COMMAND_INSTR(0x6d, 0x0E), 175 ILI9881C_COMMAND_INSTR(0x6e, 0x0D), 176 ILI9881C_COMMAND_INSTR(0x6f, 0x06), 177 ILI9881C_COMMAND_INSTR(0x70, 0x07), 178 ILI9881C_COMMAND_INSTR(0x71, 0x02), 179 ILI9881C_COMMAND_INSTR(0x72, 0x02), 180 ILI9881C_COMMAND_INSTR(0x73, 0x02), 181 ILI9881C_COMMAND_INSTR(0x74, 0x02), 182 ILI9881C_COMMAND_INSTR(0x75, 0x02), 183 ILI9881C_COMMAND_INSTR(0x76, 0x02), 184 ILI9881C_COMMAND_INSTR(0x77, 0x02), 185 ILI9881C_COMMAND_INSTR(0x78, 0x02), 186 ILI9881C_COMMAND_INSTR(0x79, 0x02), 187 ILI9881C_COMMAND_INSTR(0x7a, 0x02), 188 ILI9881C_COMMAND_INSTR(0x7b, 0x02), 189 ILI9881C_COMMAND_INSTR(0x7c, 0x02), 190 ILI9881C_COMMAND_INSTR(0x7d, 0x02), 191 ILI9881C_COMMAND_INSTR(0x7e, 0x02), 192 ILI9881C_COMMAND_INSTR(0x7f, 0x02), 193 ILI9881C_COMMAND_INSTR(0x80, 0x0C), 194 ILI9881C_COMMAND_INSTR(0x81, 0x02), 195 ILI9881C_COMMAND_INSTR(0x82, 0x0F), 196 ILI9881C_COMMAND_INSTR(0x83, 0x0E), 197 ILI9881C_COMMAND_INSTR(0x84, 0x0D), 198 ILI9881C_COMMAND_INSTR(0x85, 0x06), 199 ILI9881C_COMMAND_INSTR(0x86, 0x07), 200 ILI9881C_COMMAND_INSTR(0x87, 0x02), 201 ILI9881C_COMMAND_INSTR(0x88, 0x02), 202 ILI9881C_COMMAND_INSTR(0x89, 0x02), 203 ILI9881C_COMMAND_INSTR(0x8A, 0x02), 204 ILI9881C_SWITCH_PAGE_INSTR(4), 205 ILI9881C_COMMAND_INSTR(0x6C, 0x15), 206 ILI9881C_COMMAND_INSTR(0x6E, 0x22), 207 ILI9881C_COMMAND_INSTR(0x6F, 0x33), 208 ILI9881C_COMMAND_INSTR(0x3A, 0xA4), 209 ILI9881C_COMMAND_INSTR(0x8D, 0x0D), 210 ILI9881C_COMMAND_INSTR(0x87, 0xBA), 211 ILI9881C_COMMAND_INSTR(0x26, 0x76), 212 ILI9881C_COMMAND_INSTR(0xB2, 0xD1), 213 ILI9881C_SWITCH_PAGE_INSTR(1), 214 ILI9881C_COMMAND_INSTR(0x22, 0x0A), 215 ILI9881C_COMMAND_INSTR(0x53, 0xDC), 216 ILI9881C_COMMAND_INSTR(0x55, 0xA7), 217 ILI9881C_COMMAND_INSTR(0x50, 0x78), 218 ILI9881C_COMMAND_INSTR(0x51, 0x78), 219 ILI9881C_COMMAND_INSTR(0x31, 0x02), 220 ILI9881C_COMMAND_INSTR(0x60, 0x14), 221 ILI9881C_COMMAND_INSTR(0xA0, 0x2A), 222 ILI9881C_COMMAND_INSTR(0xA1, 0x39), 223 ILI9881C_COMMAND_INSTR(0xA2, 0x46), 224 ILI9881C_COMMAND_INSTR(0xA3, 0x0e), 225 ILI9881C_COMMAND_INSTR(0xA4, 0x12), 226 ILI9881C_COMMAND_INSTR(0xA5, 0x25), 227 ILI9881C_COMMAND_INSTR(0xA6, 0x19), 228 ILI9881C_COMMAND_INSTR(0xA7, 0x1d), 229 ILI9881C_COMMAND_INSTR(0xA8, 0xa6), 230 ILI9881C_COMMAND_INSTR(0xA9, 0x1C), 231 ILI9881C_COMMAND_INSTR(0xAA, 0x29), 232 ILI9881C_COMMAND_INSTR(0xAB, 0x85), 233 ILI9881C_COMMAND_INSTR(0xAC, 0x1C), 234 ILI9881C_COMMAND_INSTR(0xAD, 0x1B), 235 ILI9881C_COMMAND_INSTR(0xAE, 0x51), 236 ILI9881C_COMMAND_INSTR(0xAF, 0x22), 237 ILI9881C_COMMAND_INSTR(0xB0, 0x2d), 238 ILI9881C_COMMAND_INSTR(0xB1, 0x4f), 239 ILI9881C_COMMAND_INSTR(0xB2, 0x59), 240 ILI9881C_COMMAND_INSTR(0xB3, 0x3F), 241 ILI9881C_COMMAND_INSTR(0xC0, 0x2A), 242 ILI9881C_COMMAND_INSTR(0xC1, 0x3a), 243 ILI9881C_COMMAND_INSTR(0xC2, 0x45), 244 ILI9881C_COMMAND_INSTR(0xC3, 0x0e), 245 ILI9881C_COMMAND_INSTR(0xC4, 0x11), 246 ILI9881C_COMMAND_INSTR(0xC5, 0x24), 247 ILI9881C_COMMAND_INSTR(0xC6, 0x1a), 248 ILI9881C_COMMAND_INSTR(0xC7, 0x1c), 249 ILI9881C_COMMAND_INSTR(0xC8, 0xaa), 250 ILI9881C_COMMAND_INSTR(0xC9, 0x1C), 251 ILI9881C_COMMAND_INSTR(0xCA, 0x29), 252 ILI9881C_COMMAND_INSTR(0xCB, 0x96), 253 ILI9881C_COMMAND_INSTR(0xCC, 0x1C), 254 ILI9881C_COMMAND_INSTR(0xCD, 0x1B), 255 ILI9881C_COMMAND_INSTR(0xCE, 0x51), 256 ILI9881C_COMMAND_INSTR(0xCF, 0x22), 257 ILI9881C_COMMAND_INSTR(0xD0, 0x2b), 258 ILI9881C_COMMAND_INSTR(0xD1, 0x4b), 259 ILI9881C_COMMAND_INSTR(0xD2, 0x59), 260 ILI9881C_COMMAND_INSTR(0xD3, 0x3F), 261 }; 262 263 static const struct ili9881c_instr k101_im2byl02_init[] = { 264 ILI9881C_SWITCH_PAGE_INSTR(3), 265 ILI9881C_COMMAND_INSTR(0x01, 0x00), 266 ILI9881C_COMMAND_INSTR(0x02, 0x00), 267 ILI9881C_COMMAND_INSTR(0x03, 0x73), 268 ILI9881C_COMMAND_INSTR(0x04, 0x00), 269 ILI9881C_COMMAND_INSTR(0x05, 0x00), 270 ILI9881C_COMMAND_INSTR(0x06, 0x08), 271 ILI9881C_COMMAND_INSTR(0x07, 0x00), 272 ILI9881C_COMMAND_INSTR(0x08, 0x00), 273 ILI9881C_COMMAND_INSTR(0x09, 0x00), 274 ILI9881C_COMMAND_INSTR(0x0A, 0x01), 275 ILI9881C_COMMAND_INSTR(0x0B, 0x01), 276 ILI9881C_COMMAND_INSTR(0x0C, 0x00), 277 ILI9881C_COMMAND_INSTR(0x0D, 0x01), 278 ILI9881C_COMMAND_INSTR(0x0E, 0x01), 279 ILI9881C_COMMAND_INSTR(0x0F, 0x00), 280 ILI9881C_COMMAND_INSTR(0x10, 0x00), 281 ILI9881C_COMMAND_INSTR(0x11, 0x00), 282 ILI9881C_COMMAND_INSTR(0x12, 0x00), 283 ILI9881C_COMMAND_INSTR(0x13, 0x00), 284 ILI9881C_COMMAND_INSTR(0x14, 0x00), 285 ILI9881C_COMMAND_INSTR(0x15, 0x00), 286 ILI9881C_COMMAND_INSTR(0x16, 0x00), 287 ILI9881C_COMMAND_INSTR(0x17, 0x00), 288 ILI9881C_COMMAND_INSTR(0x18, 0x00), 289 ILI9881C_COMMAND_INSTR(0x19, 0x00), 290 ILI9881C_COMMAND_INSTR(0x1A, 0x00), 291 ILI9881C_COMMAND_INSTR(0x1B, 0x00), 292 ILI9881C_COMMAND_INSTR(0x1C, 0x00), 293 ILI9881C_COMMAND_INSTR(0x1D, 0x00), 294 ILI9881C_COMMAND_INSTR(0x1E, 0x40), 295 ILI9881C_COMMAND_INSTR(0x1F, 0xC0), 296 ILI9881C_COMMAND_INSTR(0x20, 0x06), 297 ILI9881C_COMMAND_INSTR(0x21, 0x01), 298 ILI9881C_COMMAND_INSTR(0x22, 0x06), 299 ILI9881C_COMMAND_INSTR(0x23, 0x01), 300 ILI9881C_COMMAND_INSTR(0x24, 0x88), 301 ILI9881C_COMMAND_INSTR(0x25, 0x88), 302 ILI9881C_COMMAND_INSTR(0x26, 0x00), 303 ILI9881C_COMMAND_INSTR(0x27, 0x00), 304 ILI9881C_COMMAND_INSTR(0x28, 0x3B), 305 ILI9881C_COMMAND_INSTR(0x29, 0x03), 306 ILI9881C_COMMAND_INSTR(0x2A, 0x00), 307 ILI9881C_COMMAND_INSTR(0x2B, 0x00), 308 ILI9881C_COMMAND_INSTR(0x2C, 0x00), 309 ILI9881C_COMMAND_INSTR(0x2D, 0x00), 310 ILI9881C_COMMAND_INSTR(0x2E, 0x00), 311 ILI9881C_COMMAND_INSTR(0x2F, 0x00), 312 ILI9881C_COMMAND_INSTR(0x30, 0x00), 313 ILI9881C_COMMAND_INSTR(0x31, 0x00), 314 ILI9881C_COMMAND_INSTR(0x32, 0x00), 315 ILI9881C_COMMAND_INSTR(0x33, 0x00), 316 ILI9881C_COMMAND_INSTR(0x34, 0x00), /* GPWR1/2 non overlap time 2.62us */ 317 ILI9881C_COMMAND_INSTR(0x35, 0x00), 318 ILI9881C_COMMAND_INSTR(0x36, 0x00), 319 ILI9881C_COMMAND_INSTR(0x37, 0x00), 320 ILI9881C_COMMAND_INSTR(0x38, 0x00), 321 ILI9881C_COMMAND_INSTR(0x39, 0x00), 322 ILI9881C_COMMAND_INSTR(0x3A, 0x00), 323 ILI9881C_COMMAND_INSTR(0x3B, 0x00), 324 ILI9881C_COMMAND_INSTR(0x3C, 0x00), 325 ILI9881C_COMMAND_INSTR(0x3D, 0x00), 326 ILI9881C_COMMAND_INSTR(0x3E, 0x00), 327 ILI9881C_COMMAND_INSTR(0x3F, 0x00), 328 ILI9881C_COMMAND_INSTR(0x40, 0x00), 329 ILI9881C_COMMAND_INSTR(0x41, 0x00), 330 ILI9881C_COMMAND_INSTR(0x42, 0x00), 331 ILI9881C_COMMAND_INSTR(0x43, 0x00), 332 ILI9881C_COMMAND_INSTR(0x44, 0x00), 333 ILI9881C_COMMAND_INSTR(0x50, 0x01), 334 ILI9881C_COMMAND_INSTR(0x51, 0x23), 335 ILI9881C_COMMAND_INSTR(0x52, 0x45), 336 ILI9881C_COMMAND_INSTR(0x53, 0x67), 337 ILI9881C_COMMAND_INSTR(0x54, 0x89), 338 ILI9881C_COMMAND_INSTR(0x55, 0xAB), 339 ILI9881C_COMMAND_INSTR(0x56, 0x01), 340 ILI9881C_COMMAND_INSTR(0x57, 0x23), 341 ILI9881C_COMMAND_INSTR(0x58, 0x45), 342 ILI9881C_COMMAND_INSTR(0x59, 0x67), 343 ILI9881C_COMMAND_INSTR(0x5A, 0x89), 344 ILI9881C_COMMAND_INSTR(0x5B, 0xAB), 345 ILI9881C_COMMAND_INSTR(0x5C, 0xCD), 346 ILI9881C_COMMAND_INSTR(0x5D, 0xEF), 347 ILI9881C_COMMAND_INSTR(0x5E, 0x00), 348 ILI9881C_COMMAND_INSTR(0x5F, 0x01), 349 ILI9881C_COMMAND_INSTR(0x60, 0x01), 350 ILI9881C_COMMAND_INSTR(0x61, 0x06), 351 ILI9881C_COMMAND_INSTR(0x62, 0x06), 352 ILI9881C_COMMAND_INSTR(0x63, 0x07), 353 ILI9881C_COMMAND_INSTR(0x64, 0x07), 354 ILI9881C_COMMAND_INSTR(0x65, 0x00), 355 ILI9881C_COMMAND_INSTR(0x66, 0x00), 356 ILI9881C_COMMAND_INSTR(0x67, 0x02), 357 ILI9881C_COMMAND_INSTR(0x68, 0x02), 358 ILI9881C_COMMAND_INSTR(0x69, 0x05), 359 ILI9881C_COMMAND_INSTR(0x6A, 0x05), 360 ILI9881C_COMMAND_INSTR(0x6B, 0x02), 361 ILI9881C_COMMAND_INSTR(0x6C, 0x0D), 362 ILI9881C_COMMAND_INSTR(0x6D, 0x0D), 363 ILI9881C_COMMAND_INSTR(0x6E, 0x0C), 364 ILI9881C_COMMAND_INSTR(0x6F, 0x0C), 365 ILI9881C_COMMAND_INSTR(0x70, 0x0F), 366 ILI9881C_COMMAND_INSTR(0x71, 0x0F), 367 ILI9881C_COMMAND_INSTR(0x72, 0x0E), 368 ILI9881C_COMMAND_INSTR(0x73, 0x0E), 369 ILI9881C_COMMAND_INSTR(0x74, 0x02), 370 ILI9881C_COMMAND_INSTR(0x75, 0x01), 371 ILI9881C_COMMAND_INSTR(0x76, 0x01), 372 ILI9881C_COMMAND_INSTR(0x77, 0x06), 373 ILI9881C_COMMAND_INSTR(0x78, 0x06), 374 ILI9881C_COMMAND_INSTR(0x79, 0x07), 375 ILI9881C_COMMAND_INSTR(0x7A, 0x07), 376 ILI9881C_COMMAND_INSTR(0x7B, 0x00), 377 ILI9881C_COMMAND_INSTR(0x7C, 0x00), 378 ILI9881C_COMMAND_INSTR(0x7D, 0x02), 379 ILI9881C_COMMAND_INSTR(0x7E, 0x02), 380 ILI9881C_COMMAND_INSTR(0x7F, 0x05), 381 ILI9881C_COMMAND_INSTR(0x80, 0x05), 382 ILI9881C_COMMAND_INSTR(0x81, 0x02), 383 ILI9881C_COMMAND_INSTR(0x82, 0x0D), 384 ILI9881C_COMMAND_INSTR(0x83, 0x0D), 385 ILI9881C_COMMAND_INSTR(0x84, 0x0C), 386 ILI9881C_COMMAND_INSTR(0x85, 0x0C), 387 ILI9881C_COMMAND_INSTR(0x86, 0x0F), 388 ILI9881C_COMMAND_INSTR(0x87, 0x0F), 389 ILI9881C_COMMAND_INSTR(0x88, 0x0E), 390 ILI9881C_COMMAND_INSTR(0x89, 0x0E), 391 ILI9881C_COMMAND_INSTR(0x8A, 0x02), 392 ILI9881C_SWITCH_PAGE_INSTR(4), 393 ILI9881C_COMMAND_INSTR(0x3B, 0xC0), /* ILI4003D sel */ 394 ILI9881C_COMMAND_INSTR(0x6C, 0x15), /* Set VCORE voltage = 1.5V */ 395 ILI9881C_COMMAND_INSTR(0x6E, 0x2A), /* di_pwr_reg=0 for power mode 2A, VGH clamp 18V */ 396 ILI9881C_COMMAND_INSTR(0x6F, 0x33), /* pumping ratio VGH=5x VGL=-3x */ 397 ILI9881C_COMMAND_INSTR(0x8D, 0x1B), /* VGL clamp -10V */ 398 ILI9881C_COMMAND_INSTR(0x87, 0xBA), /* ESD */ 399 ILI9881C_COMMAND_INSTR(0x3A, 0x24), /* POWER SAVING */ 400 ILI9881C_COMMAND_INSTR(0x26, 0x76), 401 ILI9881C_COMMAND_INSTR(0xB2, 0xD1), 402 ILI9881C_SWITCH_PAGE_INSTR(1), 403 ILI9881C_COMMAND_INSTR(0x22, 0x0A), /* BGR, SS */ 404 ILI9881C_COMMAND_INSTR(0x31, 0x00), /* Zigzag type3 inversion */ 405 ILI9881C_COMMAND_INSTR(0x40, 0x53), /* ILI4003D sel */ 406 ILI9881C_COMMAND_INSTR(0x43, 0x66), 407 ILI9881C_COMMAND_INSTR(0x53, 0x4C), 408 ILI9881C_COMMAND_INSTR(0x50, 0x87), 409 ILI9881C_COMMAND_INSTR(0x51, 0x82), 410 ILI9881C_COMMAND_INSTR(0x60, 0x15), 411 ILI9881C_COMMAND_INSTR(0x61, 0x01), 412 ILI9881C_COMMAND_INSTR(0x62, 0x0C), 413 ILI9881C_COMMAND_INSTR(0x63, 0x00), 414 ILI9881C_COMMAND_INSTR(0xA0, 0x00), 415 ILI9881C_COMMAND_INSTR(0xA1, 0x13), /* VP251 */ 416 ILI9881C_COMMAND_INSTR(0xA2, 0x23), /* VP247 */ 417 ILI9881C_COMMAND_INSTR(0xA3, 0x14), /* VP243 */ 418 ILI9881C_COMMAND_INSTR(0xA4, 0x16), /* VP239 */ 419 ILI9881C_COMMAND_INSTR(0xA5, 0x29), /* VP231 */ 420 ILI9881C_COMMAND_INSTR(0xA6, 0x1E), /* VP219 */ 421 ILI9881C_COMMAND_INSTR(0xA7, 0x1D), /* VP203 */ 422 ILI9881C_COMMAND_INSTR(0xA8, 0x86), /* VP175 */ 423 ILI9881C_COMMAND_INSTR(0xA9, 0x1E), /* VP144 */ 424 ILI9881C_COMMAND_INSTR(0xAA, 0x29), /* VP111 */ 425 ILI9881C_COMMAND_INSTR(0xAB, 0x74), /* VP80 */ 426 ILI9881C_COMMAND_INSTR(0xAC, 0x19), /* VP52 */ 427 ILI9881C_COMMAND_INSTR(0xAD, 0x17), /* VP36 */ 428 ILI9881C_COMMAND_INSTR(0xAE, 0x4B), /* VP24 */ 429 ILI9881C_COMMAND_INSTR(0xAF, 0x20), /* VP16 */ 430 ILI9881C_COMMAND_INSTR(0xB0, 0x26), /* VP12 */ 431 ILI9881C_COMMAND_INSTR(0xB1, 0x4C), /* VP8 */ 432 ILI9881C_COMMAND_INSTR(0xB2, 0x5D), /* VP4 */ 433 ILI9881C_COMMAND_INSTR(0xB3, 0x3F), /* VP0 */ 434 ILI9881C_COMMAND_INSTR(0xC0, 0x00), /* VN255 GAMMA N */ 435 ILI9881C_COMMAND_INSTR(0xC1, 0x13), /* VN251 */ 436 ILI9881C_COMMAND_INSTR(0xC2, 0x23), /* VN247 */ 437 ILI9881C_COMMAND_INSTR(0xC3, 0x14), /* VN243 */ 438 ILI9881C_COMMAND_INSTR(0xC4, 0x16), /* VN239 */ 439 ILI9881C_COMMAND_INSTR(0xC5, 0x29), /* VN231 */ 440 ILI9881C_COMMAND_INSTR(0xC6, 0x1E), /* VN219 */ 441 ILI9881C_COMMAND_INSTR(0xC7, 0x1D), /* VN203 */ 442 ILI9881C_COMMAND_INSTR(0xC8, 0x86), /* VN175 */ 443 ILI9881C_COMMAND_INSTR(0xC9, 0x1E), /* VN144 */ 444 ILI9881C_COMMAND_INSTR(0xCA, 0x29), /* VN111 */ 445 ILI9881C_COMMAND_INSTR(0xCB, 0x74), /* VN80 */ 446 ILI9881C_COMMAND_INSTR(0xCC, 0x19), /* VN52 */ 447 ILI9881C_COMMAND_INSTR(0xCD, 0x17), /* VN36 */ 448 ILI9881C_COMMAND_INSTR(0xCE, 0x4B), /* VN24 */ 449 ILI9881C_COMMAND_INSTR(0xCF, 0x20), /* VN16 */ 450 ILI9881C_COMMAND_INSTR(0xD0, 0x26), /* VN12 */ 451 ILI9881C_COMMAND_INSTR(0xD1, 0x4C), /* VN8 */ 452 ILI9881C_COMMAND_INSTR(0xD2, 0x5D), /* VN4 */ 453 ILI9881C_COMMAND_INSTR(0xD3, 0x3F), /* VN0 */ 454 }; 455 456 static inline struct ili9881c *panel_to_ili9881c(struct drm_panel *panel) 457 { 458 return container_of(panel, struct ili9881c, panel); 459 } 460 461 /* 462 * The panel seems to accept some private DCS commands that map 463 * directly to registers. 464 * 465 * It is organised by page, with each page having its own set of 466 * registers, and the first page looks like it's holding the standard 467 * DCS commands. 468 * 469 * So before any attempt at sending a command or data, we have to be 470 * sure if we're in the right page or not. 471 */ 472 static int ili9881c_switch_page(struct ili9881c *ctx, u8 page) 473 { 474 u8 buf[4] = { 0xff, 0x98, 0x81, page }; 475 int ret; 476 477 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf)); 478 if (ret < 0) 479 return ret; 480 481 return 0; 482 } 483 484 static int ili9881c_send_cmd_data(struct ili9881c *ctx, u8 cmd, u8 data) 485 { 486 u8 buf[2] = { cmd, data }; 487 int ret; 488 489 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf)); 490 if (ret < 0) 491 return ret; 492 493 return 0; 494 } 495 496 static int ili9881c_prepare(struct drm_panel *panel) 497 { 498 struct ili9881c *ctx = panel_to_ili9881c(panel); 499 unsigned int i; 500 int ret; 501 502 /* Power the panel */ 503 ret = regulator_enable(ctx->power); 504 if (ret) 505 return ret; 506 msleep(5); 507 508 /* And reset it */ 509 gpiod_set_value(ctx->reset, 1); 510 msleep(20); 511 512 gpiod_set_value(ctx->reset, 0); 513 msleep(20); 514 515 for (i = 0; i < ctx->desc->init_length; i++) { 516 const struct ili9881c_instr *instr = &ctx->desc->init[i]; 517 518 if (instr->op == ILI9881C_SWITCH_PAGE) 519 ret = ili9881c_switch_page(ctx, instr->arg.page); 520 else if (instr->op == ILI9881C_COMMAND) 521 ret = ili9881c_send_cmd_data(ctx, instr->arg.cmd.cmd, 522 instr->arg.cmd.data); 523 524 if (ret) 525 return ret; 526 } 527 528 ret = ili9881c_switch_page(ctx, 0); 529 if (ret) 530 return ret; 531 532 ret = mipi_dsi_dcs_set_tear_on(ctx->dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); 533 if (ret) 534 return ret; 535 536 ret = mipi_dsi_dcs_exit_sleep_mode(ctx->dsi); 537 if (ret) 538 return ret; 539 540 return 0; 541 } 542 543 static int ili9881c_enable(struct drm_panel *panel) 544 { 545 struct ili9881c *ctx = panel_to_ili9881c(panel); 546 547 msleep(120); 548 549 mipi_dsi_dcs_set_display_on(ctx->dsi); 550 551 return 0; 552 } 553 554 static int ili9881c_disable(struct drm_panel *panel) 555 { 556 struct ili9881c *ctx = panel_to_ili9881c(panel); 557 558 return mipi_dsi_dcs_set_display_off(ctx->dsi); 559 } 560 561 static int ili9881c_unprepare(struct drm_panel *panel) 562 { 563 struct ili9881c *ctx = panel_to_ili9881c(panel); 564 565 mipi_dsi_dcs_enter_sleep_mode(ctx->dsi); 566 regulator_disable(ctx->power); 567 gpiod_set_value(ctx->reset, 1); 568 569 return 0; 570 } 571 572 static const struct drm_display_mode lhr050h41_default_mode = { 573 .clock = 62000, 574 575 .hdisplay = 720, 576 .hsync_start = 720 + 10, 577 .hsync_end = 720 + 10 + 20, 578 .htotal = 720 + 10 + 20 + 30, 579 580 .vdisplay = 1280, 581 .vsync_start = 1280 + 10, 582 .vsync_end = 1280 + 10 + 10, 583 .vtotal = 1280 + 10 + 10 + 20, 584 585 .width_mm = 62, 586 .height_mm = 110, 587 }; 588 589 static const struct drm_display_mode k101_im2byl02_default_mode = { 590 .clock = 69700, 591 592 .hdisplay = 800, 593 .hsync_start = 800 + 6, 594 .hsync_end = 800 + 6 + 15, 595 .htotal = 800 + 6 + 15 + 16, 596 597 .vdisplay = 1280, 598 .vsync_start = 1280 + 8, 599 .vsync_end = 1280 + 8 + 48, 600 .vtotal = 1280 + 8 + 48 + 52, 601 602 .width_mm = 135, 603 .height_mm = 217, 604 }; 605 606 static int ili9881c_get_modes(struct drm_panel *panel, 607 struct drm_connector *connector) 608 { 609 struct ili9881c *ctx = panel_to_ili9881c(panel); 610 struct drm_display_mode *mode; 611 612 mode = drm_mode_duplicate(connector->dev, ctx->desc->mode); 613 if (!mode) { 614 dev_err(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n", 615 ctx->desc->mode->hdisplay, 616 ctx->desc->mode->vdisplay, 617 drm_mode_vrefresh(ctx->desc->mode)); 618 return -ENOMEM; 619 } 620 621 drm_mode_set_name(mode); 622 623 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 624 drm_mode_probed_add(connector, mode); 625 626 connector->display_info.width_mm = mode->width_mm; 627 connector->display_info.height_mm = mode->height_mm; 628 629 return 1; 630 } 631 632 static const struct drm_panel_funcs ili9881c_funcs = { 633 .prepare = ili9881c_prepare, 634 .unprepare = ili9881c_unprepare, 635 .enable = ili9881c_enable, 636 .disable = ili9881c_disable, 637 .get_modes = ili9881c_get_modes, 638 }; 639 640 static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi) 641 { 642 struct ili9881c *ctx; 643 int ret; 644 645 ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL); 646 if (!ctx) 647 return -ENOMEM; 648 mipi_dsi_set_drvdata(dsi, ctx); 649 ctx->dsi = dsi; 650 ctx->desc = of_device_get_match_data(&dsi->dev); 651 652 drm_panel_init(&ctx->panel, &dsi->dev, &ili9881c_funcs, 653 DRM_MODE_CONNECTOR_DSI); 654 655 ctx->power = devm_regulator_get(&dsi->dev, "power"); 656 if (IS_ERR(ctx->power)) { 657 dev_err(&dsi->dev, "Couldn't get our power regulator\n"); 658 return PTR_ERR(ctx->power); 659 } 660 661 ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW); 662 if (IS_ERR(ctx->reset)) { 663 dev_err(&dsi->dev, "Couldn't get our reset GPIO\n"); 664 return PTR_ERR(ctx->reset); 665 } 666 667 ret = drm_panel_of_backlight(&ctx->panel); 668 if (ret) 669 return ret; 670 671 drm_panel_add(&ctx->panel); 672 673 dsi->mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE; 674 dsi->format = MIPI_DSI_FMT_RGB888; 675 dsi->lanes = 4; 676 677 return mipi_dsi_attach(dsi); 678 } 679 680 static int ili9881c_dsi_remove(struct mipi_dsi_device *dsi) 681 { 682 struct ili9881c *ctx = mipi_dsi_get_drvdata(dsi); 683 684 mipi_dsi_detach(dsi); 685 drm_panel_remove(&ctx->panel); 686 687 return 0; 688 } 689 690 static const struct ili9881c_desc lhr050h41_desc = { 691 .init = lhr050h41_init, 692 .init_length = ARRAY_SIZE(lhr050h41_init), 693 .mode = &lhr050h41_default_mode, 694 }; 695 696 static const struct ili9881c_desc k101_im2byl02_desc = { 697 .init = k101_im2byl02_init, 698 .init_length = ARRAY_SIZE(k101_im2byl02_init), 699 .mode = &k101_im2byl02_default_mode, 700 }; 701 702 static const struct of_device_id ili9881c_of_match[] = { 703 { .compatible = "bananapi,lhr050h41", .data = &lhr050h41_desc }, 704 { .compatible = "feixin,k101-im2byl02", .data = &k101_im2byl02_desc }, 705 { } 706 }; 707 MODULE_DEVICE_TABLE(of, ili9881c_of_match); 708 709 static struct mipi_dsi_driver ili9881c_dsi_driver = { 710 .probe = ili9881c_dsi_probe, 711 .remove = ili9881c_dsi_remove, 712 .driver = { 713 .name = "ili9881c-dsi", 714 .of_match_table = ili9881c_of_match, 715 }, 716 }; 717 module_mipi_dsi_driver(ili9881c_dsi_driver); 718 719 MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>"); 720 MODULE_DESCRIPTION("Ilitek ILI9881C Controller Driver"); 721 MODULE_LICENSE("GPL v2"); 722