1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019, The Linux Foundation. All rights reserved. 4 */ 5 6 #include <linux/backlight.h> 7 #include <linux/delay.h> 8 #include <linux/module.h> 9 #include <linux/property.h> 10 #include <linux/gpio/consumer.h> 11 #include <linux/regulator/consumer.h> 12 13 #include <video/mipi_display.h> 14 15 #include <drm/drm_mipi_dsi.h> 16 #include <drm/drm_modes.h> 17 #include <drm/drm_panel.h> 18 19 struct visionox_rm69299_panel_desc { 20 const struct drm_display_mode *mode; 21 const u8 *init_seq; 22 unsigned int init_seq_len; 23 int max_brightness; 24 int initial_brightness; 25 }; 26 27 struct visionox_rm69299 { 28 struct drm_panel panel; 29 struct regulator_bulk_data *supplies; 30 struct gpio_desc *reset_gpio; 31 struct mipi_dsi_device *dsi; 32 const struct visionox_rm69299_panel_desc *desc; 33 }; 34 35 static const struct regulator_bulk_data visionox_rm69299_supplies[] = { 36 { .supply = "vdda", .init_load_uA = 32000 }, 37 { .supply = "vdd3p3", .init_load_uA = 13200 }, 38 }; 39 40 static const u8 visionox_rm69299_1080x2248_60hz_init_seq[][2] = { 41 { 0xfe, 0x00 }, { 0xc2, 0x08 }, { 0x35, 0x00 }, { 0x51, 0xff }, 42 }; 43 44 static const u8 visionox_rm69299_1080x2160_60hz_init_seq[][2] = { 45 { 0xfe, 0x40 }, { 0x05, 0x04 }, { 0x06, 0x08 }, { 0x08, 0x04 }, 46 { 0x09, 0x08 }, { 0x0a, 0x07 }, { 0x0b, 0xcc }, { 0x0c, 0x07 }, 47 { 0x0d, 0x90 }, { 0x0f, 0x87 }, { 0x20, 0x8d }, { 0x21, 0x8d }, 48 { 0x24, 0x05 }, { 0x26, 0x05 }, { 0x28, 0x05 }, { 0x2a, 0x05 }, 49 { 0x2d, 0x28 }, { 0x2f, 0x28 }, { 0x30, 0x32 }, { 0x31, 0x32 }, 50 { 0x37, 0x80 }, { 0x38, 0x30 }, { 0x39, 0xa8 }, { 0x46, 0x48 }, 51 { 0x47, 0x48 }, { 0x6b, 0x10 }, { 0x6f, 0x02 }, { 0x74, 0x2b }, 52 { 0x80, 0x1a }, { 0xfe, 0x40 }, { 0x93, 0x10 }, { 0x16, 0x00 }, 53 { 0x85, 0x07 }, { 0x84, 0x01 }, { 0x86, 0x0f }, { 0x87, 0x05 }, 54 { 0x8c, 0x00 }, { 0x88, 0x2e }, { 0x89, 0x2e }, { 0x8b, 0x09 }, 55 { 0x95, 0x00 }, { 0x91, 0x00 }, { 0x90, 0x00 }, { 0x8d, 0xd0 }, 56 { 0x8a, 0x03 }, { 0xfe, 0xa0 }, { 0x13, 0x00 }, { 0x33, 0x00 }, 57 { 0x0b, 0x33 }, { 0x36, 0x1e }, { 0x31, 0x88 }, { 0x32, 0x88 }, 58 { 0x37, 0xf1 }, { 0xfe, 0x50 }, { 0x00, 0x00 }, { 0x01, 0x00 }, 59 { 0x02, 0x00 }, { 0x03, 0xe9 }, { 0x04, 0x00 }, { 0x05, 0xf6 }, 60 { 0x06, 0x01 }, { 0x07, 0x2c }, { 0x08, 0x01 }, { 0x09, 0x62 }, 61 { 0x0a, 0x01 }, { 0x0b, 0x98 }, { 0x0c, 0x01 }, { 0x0d, 0xbf }, 62 { 0x0e, 0x01 }, { 0x0f, 0xf6 }, { 0x10, 0x02 }, { 0x11, 0x24 }, 63 { 0x12, 0x02 }, { 0x13, 0x4e }, { 0x14, 0x02 }, { 0x15, 0x70 }, 64 { 0x16, 0x02 }, { 0x17, 0xaf }, { 0x18, 0x02 }, { 0x19, 0xe2 }, 65 { 0x1a, 0x03 }, { 0x1b, 0x1f }, { 0x1c, 0x03 }, { 0x1d, 0x52 }, 66 { 0x1e, 0x03 }, { 0x1f, 0x82 }, { 0x20, 0x03 }, { 0x21, 0xb6 }, 67 { 0x22, 0x03 }, { 0x23, 0xf0 }, { 0x24, 0x04 }, { 0x25, 0x1f }, 68 { 0x26, 0x04 }, { 0x27, 0x37 }, { 0x28, 0x04 }, { 0x29, 0x59 }, 69 { 0x2a, 0x04 }, { 0x2b, 0x68 }, { 0x30, 0x04 }, { 0x31, 0x85 }, 70 { 0x32, 0x04 }, { 0x33, 0xa2 }, { 0x34, 0x04 }, { 0x35, 0xbc }, 71 { 0x36, 0x04 }, { 0x37, 0xd8 }, { 0x38, 0x04 }, { 0x39, 0xf4 }, 72 { 0x3a, 0x05 }, { 0x3b, 0x0e }, { 0x40, 0x05 }, { 0x41, 0x13 }, 73 { 0x42, 0x05 }, { 0x43, 0x1f }, { 0x44, 0x05 }, { 0x45, 0x1f }, 74 { 0x46, 0x00 }, { 0x47, 0x00 }, { 0x48, 0x01 }, { 0x49, 0x43 }, 75 { 0x4a, 0x01 }, { 0x4b, 0x4c }, { 0x4c, 0x01 }, { 0x4d, 0x6f }, 76 { 0x4e, 0x01 }, { 0x4f, 0x92 }, { 0x50, 0x01 }, { 0x51, 0xb5 }, 77 { 0x52, 0x01 }, { 0x53, 0xd4 }, { 0x58, 0x02 }, { 0x59, 0x06 }, 78 { 0x5a, 0x02 }, { 0x5b, 0x33 }, { 0x5c, 0x02 }, { 0x5d, 0x59 }, 79 { 0x5e, 0x02 }, { 0x5f, 0x7d }, { 0x60, 0x02 }, { 0x61, 0xbd }, 80 { 0x62, 0x02 }, { 0x63, 0xf7 }, { 0x64, 0x03 }, { 0x65, 0x31 }, 81 { 0x66, 0x03 }, { 0x67, 0x63 }, { 0x68, 0x03 }, { 0x69, 0x9d }, 82 { 0x6a, 0x03 }, { 0x6b, 0xd2 }, { 0x6c, 0x04 }, { 0x6d, 0x05 }, 83 { 0x6e, 0x04 }, { 0x6f, 0x38 }, { 0x70, 0x04 }, { 0x71, 0x51 }, 84 { 0x72, 0x04 }, { 0x73, 0x70 }, { 0x74, 0x04 }, { 0x75, 0x85 }, 85 { 0x76, 0x04 }, { 0x77, 0xa1 }, { 0x78, 0x04 }, { 0x79, 0xc0 }, 86 { 0x7a, 0x04 }, { 0x7b, 0xd8 }, { 0x7c, 0x04 }, { 0x7d, 0xf2 }, 87 { 0x7e, 0x05 }, { 0x7f, 0x10 }, { 0x80, 0x05 }, { 0x81, 0x21 }, 88 { 0x82, 0x05 }, { 0x83, 0x2e }, { 0x84, 0x05 }, { 0x85, 0x3a }, 89 { 0x86, 0x05 }, { 0x87, 0x3e }, { 0x88, 0x00 }, { 0x89, 0x00 }, 90 { 0x8a, 0x01 }, { 0x8b, 0x86 }, { 0x8c, 0x01 }, { 0x8d, 0x8f }, 91 { 0x8e, 0x01 }, { 0x8f, 0xb3 }, { 0x90, 0x01 }, { 0x91, 0xd7 }, 92 { 0x92, 0x01 }, { 0x93, 0xfb }, { 0x94, 0x02 }, { 0x95, 0x18 }, 93 { 0x96, 0x02 }, { 0x97, 0x4f }, { 0x98, 0x02 }, { 0x99, 0x7e }, 94 { 0x9a, 0x02 }, { 0x9b, 0xa6 }, { 0x9c, 0x02 }, { 0x9d, 0xcf }, 95 { 0x9e, 0x03 }, { 0x9f, 0x14 }, { 0xa4, 0x03 }, { 0xa5, 0x52 }, 96 { 0xa6, 0x03 }, { 0xa7, 0x93 }, { 0xac, 0x03 }, { 0xad, 0xcf }, 97 { 0xae, 0x04 }, { 0xaf, 0x08 }, { 0xb0, 0x04 }, { 0xb1, 0x42 }, 98 { 0xb2, 0x04 }, { 0xb3, 0x7f }, { 0xb4, 0x04 }, { 0xb5, 0xb4 }, 99 { 0xb6, 0x04 }, { 0xb7, 0xcc }, { 0xb8, 0x04 }, { 0xb9, 0xf2 }, 100 { 0xba, 0x05 }, { 0xbb, 0x0c }, { 0xbc, 0x05 }, { 0xbd, 0x26 }, 101 { 0xbe, 0x05 }, { 0xbf, 0x4b }, { 0xc0, 0x05 }, { 0xc1, 0x64 }, 102 { 0xc2, 0x05 }, { 0xc3, 0x83 }, { 0xc4, 0x05 }, { 0xc5, 0xa1 }, 103 { 0xc6, 0x05 }, { 0xc7, 0xba }, { 0xc8, 0x05 }, { 0xc9, 0xc4 }, 104 { 0xca, 0x05 }, { 0xcb, 0xd5 }, { 0xcc, 0x05 }, { 0xcd, 0xd5 }, 105 { 0xce, 0x00 }, { 0xcf, 0xce }, { 0xd0, 0x00 }, { 0xd1, 0xdb }, 106 { 0xd2, 0x01 }, { 0xd3, 0x32 }, { 0xd4, 0x01 }, { 0xd5, 0x3b }, 107 { 0xd6, 0x01 }, { 0xd7, 0x74 }, { 0xd8, 0x01 }, { 0xd9, 0x7d }, 108 { 0xfe, 0x60 }, { 0x00, 0xcc }, { 0x01, 0x0f }, { 0x02, 0xff }, 109 { 0x03, 0x01 }, { 0x04, 0x00 }, { 0x05, 0x02 }, { 0x06, 0x00 }, 110 { 0x07, 0x00 }, { 0x09, 0xc4 }, { 0x0a, 0x00 }, { 0x0b, 0x04 }, 111 { 0x0c, 0x01 }, { 0x0d, 0x00 }, { 0x0e, 0x04 }, { 0x0f, 0x00 }, 112 { 0x10, 0x71 }, { 0x12, 0xc4 }, { 0x13, 0x00 }, { 0x14, 0x04 }, 113 { 0x15, 0x01 }, { 0x16, 0x00 }, { 0x17, 0x06 }, { 0x18, 0x00 }, 114 { 0x19, 0x71 }, { 0x1b, 0xc4 }, { 0x1c, 0x00 }, { 0x1d, 0x02 }, 115 { 0x1e, 0x00 }, { 0x1f, 0x00 }, { 0x20, 0x08 }, { 0x21, 0x66 }, 116 { 0x22, 0xb4 }, { 0x24, 0xc4 }, { 0x25, 0x00 }, { 0x26, 0x02 }, 117 { 0x27, 0x00 }, { 0x28, 0x00 }, { 0x29, 0x07 }, { 0x2a, 0x66 }, 118 { 0x2b, 0xb4 }, { 0x2f, 0xc4 }, { 0x30, 0x00 }, { 0x31, 0x04 }, 119 { 0x32, 0x01 }, { 0x33, 0x00 }, { 0x34, 0x03 }, { 0x35, 0x00 }, 120 { 0x36, 0x71 }, { 0x38, 0xc4 }, { 0x39, 0x00 }, { 0x3a, 0x04 }, 121 { 0x3b, 0x01 }, { 0x3d, 0x00 }, { 0x3f, 0x05 }, { 0x40, 0x00 }, 122 { 0x41, 0x71 }, { 0x83, 0xce }, { 0x84, 0x02 }, { 0x85, 0x20 }, 123 { 0x86, 0xdc }, { 0x87, 0x00 }, { 0x88, 0x04 }, { 0x89, 0x00 }, 124 { 0x8a, 0xbb }, { 0x8b, 0x80 }, { 0xc7, 0x0e }, { 0xc8, 0x05 }, 125 { 0xc9, 0x1f }, { 0xca, 0x06 }, { 0xcb, 0x00 }, { 0xcc, 0x03 }, 126 { 0xcd, 0x04 }, { 0xce, 0x1f }, { 0xcf, 0x1f }, { 0xd0, 0x1f }, 127 { 0xd1, 0x1f }, { 0xd2, 0x1f }, { 0xd3, 0x1f }, { 0xd4, 0x1f }, 128 { 0xd5, 0x1f }, { 0xd6, 0x1f }, { 0xd7, 0x17 }, { 0xd8, 0x1f }, 129 { 0xd9, 0x16 }, { 0xda, 0x1f }, { 0xdb, 0x0e }, { 0xdc, 0x01 }, 130 { 0xdd, 0x1f }, { 0xde, 0x02 }, { 0xdf, 0x00 }, { 0xe0, 0x03 }, 131 { 0xe1, 0x04 }, { 0xe2, 0x1f }, { 0xe3, 0x1f }, { 0xe4, 0x1f }, 132 { 0xe5, 0x1f }, { 0xe6, 0x1f }, { 0xe7, 0x1f }, { 0xe8, 0x1f }, 133 { 0xe9, 0x1f }, { 0xea, 0x1f }, { 0xeb, 0x17 }, { 0xec, 0x1f }, 134 { 0xed, 0x16 }, { 0xee, 0x1f }, { 0xef, 0x03 }, { 0xfe, 0x70 }, 135 { 0x5a, 0x0b }, { 0x5b, 0x0b }, { 0x5c, 0x55 }, { 0x5d, 0x24 }, 136 { 0xfe, 0x90 }, { 0x12, 0x24 }, { 0x13, 0x49 }, { 0x14, 0x92 }, 137 { 0x15, 0x86 }, { 0x16, 0x61 }, { 0x17, 0x18 }, { 0x18, 0x24 }, 138 { 0x19, 0x49 }, { 0x1a, 0x92 }, { 0x1b, 0x86 }, { 0x1c, 0x61 }, 139 { 0x1d, 0x18 }, { 0x1e, 0x24 }, { 0x1f, 0x49 }, { 0x20, 0x92 }, 140 { 0x21, 0x86 }, { 0x22, 0x61 }, { 0x23, 0x18 }, { 0xfe, 0x40 }, 141 { 0x0e, 0x10 }, { 0xfe, 0xa0 }, { 0x04, 0x80 }, { 0x16, 0x00 }, 142 { 0x26, 0x10 }, { 0x2f, 0x37 }, { 0xfe, 0xd0 }, { 0x06, 0x0f }, 143 { 0x4b, 0x00 }, { 0x56, 0x4a }, { 0xfe, 0x00 }, { 0xc2, 0x09 }, 144 { 0x35, 0x00 }, { 0xfe, 0x70 }, { 0x7d, 0x61 }, { 0x7f, 0x00 }, 145 { 0x7e, 0x4e }, { 0x52, 0x2c }, { 0x49, 0x00 }, { 0x4a, 0x00 }, 146 { 0x4b, 0x00 }, { 0x4c, 0x00 }, { 0x4d, 0xe8 }, { 0x4e, 0x25 }, 147 { 0x4f, 0x6e }, { 0x50, 0xae }, { 0x51, 0x2f }, { 0xad, 0xf4 }, 148 { 0xae, 0x8f }, { 0xaf, 0x00 }, { 0xb0, 0x54 }, { 0xb1, 0x3a }, 149 { 0xb2, 0x00 }, { 0xb3, 0x00 }, { 0xb4, 0x00 }, { 0xb5, 0x00 }, 150 { 0xb6, 0x18 }, { 0xb7, 0x30 }, { 0xb8, 0x4a }, { 0xb9, 0x98 }, 151 { 0xba, 0x30 }, { 0xbb, 0x60 }, { 0xbc, 0x50 }, { 0xbd, 0x00 }, 152 { 0xbe, 0x00 }, { 0xbf, 0x39 }, { 0xfe, 0x00 }, { 0x51, 0x66 }, 153 }; 154 155 static inline struct visionox_rm69299 *panel_to_ctx(struct drm_panel *panel) 156 { 157 return container_of(panel, struct visionox_rm69299, panel); 158 } 159 160 static int visionox_rm69299_power_on(struct visionox_rm69299 *ctx) 161 { 162 int ret; 163 164 ret = regulator_bulk_enable(ARRAY_SIZE(visionox_rm69299_supplies), 165 ctx->supplies); 166 if (ret < 0) 167 return ret; 168 169 /* 170 * Reset sequence of visionox panel requires the panel to be 171 * out of reset for 10ms, followed by being held in reset 172 * for 10ms and then out again 173 */ 174 gpiod_set_value(ctx->reset_gpio, 1); 175 usleep_range(10000, 20000); 176 gpiod_set_value(ctx->reset_gpio, 0); 177 usleep_range(10000, 20000); 178 gpiod_set_value(ctx->reset_gpio, 1); 179 usleep_range(10000, 20000); 180 181 return 0; 182 } 183 184 static int visionox_rm69299_power_off(struct visionox_rm69299 *ctx) 185 { 186 gpiod_set_value(ctx->reset_gpio, 0); 187 188 return regulator_bulk_disable(ARRAY_SIZE(visionox_rm69299_supplies), 189 ctx->supplies); 190 } 191 192 static int visionox_rm69299_unprepare(struct drm_panel *panel) 193 { 194 struct visionox_rm69299 *ctx = panel_to_ctx(panel); 195 struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi }; 196 197 ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; 198 199 mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); 200 201 /* 120ms delay required here as per DCS spec */ 202 mipi_dsi_msleep(&dsi_ctx, 120); 203 204 mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); 205 206 return visionox_rm69299_power_off(ctx); 207 } 208 209 static int visionox_rm69299_prepare(struct drm_panel *panel) 210 { 211 struct visionox_rm69299 *ctx = panel_to_ctx(panel); 212 struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi }; 213 int ret, i; 214 215 ret = visionox_rm69299_power_on(ctx); 216 if (ret < 0) 217 return ret; 218 219 ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM; 220 221 for (i = 0; i < ctx->desc->init_seq_len; i++) 222 mipi_dsi_dcs_write_buffer_multi(&dsi_ctx, &ctx->desc->init_seq[i * 2], 2); 223 224 mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); 225 226 /* Per DSI spec wait 120ms after sending exit sleep DCS command */ 227 mipi_dsi_msleep(&dsi_ctx, 120); 228 229 mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); 230 231 /* Per DSI spec wait 120ms after sending set_display_on DCS command */ 232 mipi_dsi_msleep(&dsi_ctx, 120); 233 234 return dsi_ctx.accum_err; 235 } 236 237 static const struct drm_display_mode visionox_rm69299_1080x2248_60hz = { 238 .name = "1080x2248", 239 .clock = 158695, 240 .hdisplay = 1080, 241 .hsync_start = 1080 + 26, 242 .hsync_end = 1080 + 26 + 2, 243 .htotal = 1080 + 26 + 2 + 36, 244 .vdisplay = 2248, 245 .vsync_start = 2248 + 56, 246 .vsync_end = 2248 + 56 + 4, 247 .vtotal = 2248 + 56 + 4 + 4, 248 .flags = 0, 249 }; 250 251 static const struct drm_display_mode visionox_rm69299_1080x2160_60hz = { 252 .clock = (2160 + 8 + 4 + 4) * (1080 + 26 + 2 + 36) * 60 / 1000, 253 .hdisplay = 1080, 254 .hsync_start = 1080 + 26, 255 .hsync_end = 1080 + 26 + 2, 256 .htotal = 1080 + 26 + 2 + 36, 257 .vdisplay = 2160, 258 .vsync_start = 2160 + 8, 259 .vsync_end = 2160 + 8 + 4, 260 .vtotal = 2160 + 8 + 4 + 4, 261 .flags = 0, 262 }; 263 264 static int visionox_rm69299_get_modes(struct drm_panel *panel, 265 struct drm_connector *connector) 266 { 267 struct visionox_rm69299 *ctx = panel_to_ctx(panel); 268 struct drm_display_mode *mode; 269 270 mode = drm_mode_duplicate(connector->dev, ctx->desc->mode); 271 if (!mode) { 272 dev_err(ctx->panel.dev, "failed to create a new display mode\n"); 273 return 0; 274 } 275 276 connector->display_info.width_mm = 74; 277 connector->display_info.height_mm = 131; 278 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; 279 drm_mode_probed_add(connector, mode); 280 281 return 1; 282 } 283 284 static const struct drm_panel_funcs visionox_rm69299_drm_funcs = { 285 .unprepare = visionox_rm69299_unprepare, 286 .prepare = visionox_rm69299_prepare, 287 .get_modes = visionox_rm69299_get_modes, 288 }; 289 290 static int visionox_rm69299_bl_get_brightness(struct backlight_device *bl) 291 { 292 struct mipi_dsi_device *dsi = bl_get_data(bl); 293 u16 brightness; 294 int ret; 295 296 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; 297 298 ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness); 299 if (ret < 0) 300 return ret; 301 302 dsi->mode_flags |= MIPI_DSI_MODE_LPM; 303 304 return brightness; 305 } 306 307 static int visionox_rm69299_bl_update_status(struct backlight_device *bl) 308 { 309 struct mipi_dsi_device *dsi = bl_get_data(bl); 310 u16 brightness = backlight_get_brightness(bl); 311 int ret; 312 313 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; 314 315 ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness); 316 if (ret < 0) 317 return ret; 318 319 dsi->mode_flags |= MIPI_DSI_MODE_LPM; 320 321 return 0; 322 } 323 324 static const struct backlight_ops visionox_rm69299_bl_ops = { 325 .update_status = visionox_rm69299_bl_update_status, 326 .get_brightness = visionox_rm69299_bl_get_brightness, 327 }; 328 329 static struct backlight_device * 330 visionox_rm69299_create_backlight(struct visionox_rm69299 *ctx) 331 { 332 struct device *dev = &ctx->dsi->dev; 333 const struct backlight_properties props = { 334 .type = BACKLIGHT_RAW, 335 .brightness = ctx->desc->initial_brightness, 336 .max_brightness = ctx->desc->max_brightness, 337 }; 338 339 if (!ctx->desc->max_brightness) 340 return 0; 341 342 return devm_backlight_device_register(dev, dev_name(dev), dev, ctx->dsi, 343 &visionox_rm69299_bl_ops, 344 &props); 345 } 346 347 static int visionox_rm69299_probe(struct mipi_dsi_device *dsi) 348 { 349 struct device *dev = &dsi->dev; 350 struct visionox_rm69299 *ctx; 351 int ret; 352 353 ctx = devm_drm_panel_alloc(dev, struct visionox_rm69299, panel, 354 &visionox_rm69299_drm_funcs, 355 DRM_MODE_CONNECTOR_DSI); 356 if (IS_ERR(ctx)) 357 return PTR_ERR(ctx); 358 359 ctx->desc = device_get_match_data(dev); 360 if (!ctx->desc) 361 return -EINVAL; 362 363 mipi_dsi_set_drvdata(dsi, ctx); 364 365 ctx->dsi = dsi; 366 367 ret = devm_regulator_bulk_get_const(dev, ARRAY_SIZE(visionox_rm69299_supplies), 368 visionox_rm69299_supplies, &ctx->supplies); 369 if (ret < 0) 370 return ret; 371 372 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); 373 if (IS_ERR(ctx->reset_gpio)) { 374 dev_err(dev, "cannot get reset gpio %ld\n", PTR_ERR(ctx->reset_gpio)); 375 return PTR_ERR(ctx->reset_gpio); 376 } 377 378 ctx->panel.prepare_prev_first = true; 379 380 ctx->panel.backlight = visionox_rm69299_create_backlight(ctx); 381 if (IS_ERR(ctx->panel.backlight)) 382 return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight), 383 "Failed to create backlight\n"); 384 385 drm_panel_add(&ctx->panel); 386 387 dsi->lanes = 4; 388 dsi->format = MIPI_DSI_FMT_RGB888; 389 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM | 390 MIPI_DSI_CLOCK_NON_CONTINUOUS; 391 ret = mipi_dsi_attach(dsi); 392 if (ret < 0) { 393 dev_err(dev, "dsi attach failed ret = %d\n", ret); 394 goto err_dsi_attach; 395 } 396 397 return 0; 398 399 err_dsi_attach: 400 drm_panel_remove(&ctx->panel); 401 return ret; 402 } 403 404 static void visionox_rm69299_remove(struct mipi_dsi_device *dsi) 405 { 406 struct visionox_rm69299 *ctx = mipi_dsi_get_drvdata(dsi); 407 408 mipi_dsi_detach(ctx->dsi); 409 drm_panel_remove(&ctx->panel); 410 } 411 412 const struct visionox_rm69299_panel_desc visionox_rm69299_1080p_display_desc = { 413 .mode = &visionox_rm69299_1080x2248_60hz, 414 .init_seq = (const u8 *)visionox_rm69299_1080x2248_60hz_init_seq, 415 .init_seq_len = ARRAY_SIZE(visionox_rm69299_1080x2248_60hz_init_seq), 416 }; 417 418 const struct visionox_rm69299_panel_desc visionox_rm69299_shift_desc = { 419 .mode = &visionox_rm69299_1080x2160_60hz, 420 .init_seq = (const u8 *)visionox_rm69299_1080x2160_60hz_init_seq, 421 .init_seq_len = ARRAY_SIZE(visionox_rm69299_1080x2160_60hz_init_seq), 422 .max_brightness = 255, 423 .initial_brightness = 50, 424 }; 425 426 static const struct of_device_id visionox_rm69299_of_match[] = { 427 { .compatible = "visionox,rm69299-1080p-display", 428 .data = &visionox_rm69299_1080p_display_desc }, 429 { .compatible = "visionox,rm69299-shift", 430 .data = &visionox_rm69299_shift_desc }, 431 { /* sentinel */ } 432 }; 433 MODULE_DEVICE_TABLE(of, visionox_rm69299_of_match); 434 435 static struct mipi_dsi_driver visionox_rm69299_driver = { 436 .driver = { 437 .name = "panel-visionox-rm69299", 438 .of_match_table = visionox_rm69299_of_match, 439 }, 440 .probe = visionox_rm69299_probe, 441 .remove = visionox_rm69299_remove, 442 }; 443 module_mipi_dsi_driver(visionox_rm69299_driver); 444 445 MODULE_DESCRIPTION("Visionox RM69299 DSI Panel Driver"); 446 MODULE_LICENSE("GPL v2"); 447