drivers/gpu/drm/panel/panel-ilitek-ili9881c.c

   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");