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1// SPDX-License-Identifier: GPL-2.0-only2// Copyright (c) 2023, Linaro Limited3 4#include <linux/backlight.h>5#include <linux/delay.h>6#include <linux/gpio/consumer.h>7#include <linux/regulator/consumer.h>8#include <linux/module.h>9#include <linux/of.h>10 11#include <drm/display/drm_dsc.h>12#include <drm/drm_mipi_dsi.h>13#include <drm/drm_modes.h>14#include <drm/drm_panel.h>15 16#include <video/mipi_display.h>17 18struct visionox_vtdr6130 {19 struct drm_panel panel;20 struct mipi_dsi_device *dsi;21 struct gpio_desc *reset_gpio;22 struct regulator_bulk_data *supplies;23};24 25static const struct regulator_bulk_data visionox_vtdr6130_supplies[] = {26 { .supply = "vddio" },27 { .supply = "vci" },28 { .supply = "vdd" },29};30 31static inline struct visionox_vtdr6130 *to_visionox_vtdr6130(struct drm_panel *panel)32{33 return container_of(panel, struct visionox_vtdr6130, panel);34}35 36static void visionox_vtdr6130_reset(struct visionox_vtdr6130 *ctx)37{38 gpiod_set_value_cansleep(ctx->reset_gpio, 0);39 usleep_range(10000, 11000);40 gpiod_set_value_cansleep(ctx->reset_gpio, 1);41 usleep_range(10000, 11000);42 gpiod_set_value_cansleep(ctx->reset_gpio, 0);43 usleep_range(10000, 11000);44}45 46static int visionox_vtdr6130_on(struct visionox_vtdr6130 *ctx)47{48 struct mipi_dsi_device *dsi = ctx->dsi;49 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };50 51 dsi->mode_flags |= MIPI_DSI_MODE_LPM;52 53 mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);54 55 mipi_dsi_dcs_write_seq_multi(&dsi_ctx,56 MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);57 mipi_dsi_dcs_write_seq_multi(&dsi_ctx,58 MIPI_DCS_SET_DISPLAY_BRIGHTNESS, 0x00,59 0x00);60 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x59, 0x09);61 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6c, 0x01);62 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6d, 0x00);63 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x6f, 0x01);64 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x70, 0x12, 0x00, 0x00, 0xab,65 0x30, 0x80, 0x09, 0x60, 0x04, 0x38, 0x00,66 0x28, 0x02, 0x1c, 0x02, 0x1c, 0x02, 0x00,67 0x02, 0x0e, 0x00, 0x20, 0x03, 0xdd, 0x00,68 0x07, 0x00, 0x0c, 0x02, 0x77, 0x02, 0x8b,69 0x18, 0x00, 0x10, 0xf0, 0x07, 0x10, 0x20,70 0x00, 0x06, 0x0f, 0x0f, 0x33, 0x0e, 0x1c,71 0x2a, 0x38, 0x46, 0x54, 0x62, 0x69, 0x70,72 0x77, 0x79, 0x7b, 0x7d, 0x7e, 0x02, 0x02,73 0x22, 0x00, 0x2a, 0x40, 0x2a, 0xbe, 0x3a,74 0xfc, 0x3a, 0xfa, 0x3a, 0xf8, 0x3b, 0x38,75 0x3b, 0x78, 0x3b, 0xb6, 0x4b, 0xb6, 0x4b,76 0xf4, 0x4b, 0xf4, 0x6c, 0x34, 0x84, 0x74,77 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);78 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x10);79 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb1, 0x01, 0x38, 0x00, 0x14,80 0x00, 0x1c, 0x00, 0x01, 0x66, 0x00, 0x14,81 0x00, 0x14, 0x00, 0x01, 0x66, 0x00, 0x14,82 0x05, 0xcc, 0x00);83 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x13);84 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xce, 0x09, 0x11, 0x09, 0x11,85 0x08, 0xc1, 0x07, 0xfa, 0x05, 0xa4, 0x00,86 0x3c, 0x00, 0x34, 0x00, 0x24, 0x00, 0x0c,87 0x00, 0x0c, 0x04, 0x00, 0x35);88 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x14);89 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb2, 0x03, 0x33);90 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb4, 0x00, 0x33, 0x00, 0x00,91 0x00, 0x3e, 0x00, 0x00, 0x00, 0x3e, 0x00,92 0x00);93 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb5, 0x00, 0x09, 0x09, 0x09,94 0x09, 0x09, 0x09, 0x06, 0x01);95 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb9, 0x00, 0x00, 0x08, 0x09,96 0x09, 0x09);97 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbc, 0x10, 0x00, 0x00, 0x06,98 0x11, 0x09, 0x3b, 0x09, 0x47, 0x09, 0x47,99 0x00);100 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xbe, 0x10, 0x10, 0x00, 0x08,101 0x22, 0x09, 0x19, 0x09, 0x25, 0x09, 0x25,102 0x00);103 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x80);104 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x14);105 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfa, 0x08, 0x08, 0x08);106 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x81);107 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x05);108 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf3, 0x0f);109 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xaa, 0x00);110 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x82);111 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf9, 0x00);112 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x51, 0x83);113 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x04);114 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf8, 0x00);115 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x00);116 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x65, 0x01);117 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf4, 0x9a);118 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xff, 0x5a, 0x00);119 120 mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);121 mipi_dsi_msleep(&dsi_ctx, 120);122 123 mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);124 mipi_dsi_msleep(&dsi_ctx, 20);125 126 return dsi_ctx.accum_err;127}128 129static void visionox_vtdr6130_off(struct visionox_vtdr6130 *ctx)130{131 struct mipi_dsi_device *dsi = ctx->dsi;132 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };133 134 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;135 136 mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);137 mipi_dsi_msleep(&dsi_ctx, 20);138 139 mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);140 mipi_dsi_msleep(&dsi_ctx, 120);141}142 143static int visionox_vtdr6130_prepare(struct drm_panel *panel)144{145 struct visionox_vtdr6130 *ctx = to_visionox_vtdr6130(panel);146 int ret;147 148 ret = regulator_bulk_enable(ARRAY_SIZE(visionox_vtdr6130_supplies),149 ctx->supplies);150 if (ret < 0)151 return ret;152 153 visionox_vtdr6130_reset(ctx);154 155 ret = visionox_vtdr6130_on(ctx);156 if (ret < 0) {157 gpiod_set_value_cansleep(ctx->reset_gpio, 1);158 regulator_bulk_disable(ARRAY_SIZE(visionox_vtdr6130_supplies),159 ctx->supplies);160 return ret;161 }162 163 return 0;164}165 166static int visionox_vtdr6130_unprepare(struct drm_panel *panel)167{168 struct visionox_vtdr6130 *ctx = to_visionox_vtdr6130(panel);169 170 visionox_vtdr6130_off(ctx);171 172 gpiod_set_value_cansleep(ctx->reset_gpio, 1);173 174 regulator_bulk_disable(ARRAY_SIZE(visionox_vtdr6130_supplies),175 ctx->supplies);176 177 return 0;178}179 180static const struct drm_display_mode visionox_vtdr6130_mode = {181 .clock = (1080 + 20 + 2 + 20) * (2400 + 20 + 2 + 18) * 144 / 1000,182 .hdisplay = 1080,183 .hsync_start = 1080 + 20,184 .hsync_end = 1080 + 20 + 2,185 .htotal = 1080 + 20 + 2 + 20,186 .vdisplay = 2400,187 .vsync_start = 2400 + 20,188 .vsync_end = 2400 + 20 + 2,189 .vtotal = 2400 + 20 + 2 + 18,190 .width_mm = 71,191 .height_mm = 157,192};193 194static int visionox_vtdr6130_get_modes(struct drm_panel *panel,195 struct drm_connector *connector)196{197 struct drm_display_mode *mode;198 199 mode = drm_mode_duplicate(connector->dev, &visionox_vtdr6130_mode);200 if (!mode)201 return -ENOMEM;202 203 drm_mode_set_name(mode);204 205 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;206 connector->display_info.width_mm = mode->width_mm;207 connector->display_info.height_mm = mode->height_mm;208 drm_mode_probed_add(connector, mode);209 210 return 1;211}212 213static const struct drm_panel_funcs visionox_vtdr6130_panel_funcs = {214 .prepare = visionox_vtdr6130_prepare,215 .unprepare = visionox_vtdr6130_unprepare,216 .get_modes = visionox_vtdr6130_get_modes,217};218 219static int visionox_vtdr6130_bl_update_status(struct backlight_device *bl)220{221 struct mipi_dsi_device *dsi = bl_get_data(bl);222 u16 brightness = backlight_get_brightness(bl);223 224 return mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);225}226 227static const struct backlight_ops visionox_vtdr6130_bl_ops = {228 .update_status = visionox_vtdr6130_bl_update_status,229};230 231static struct backlight_device *232visionox_vtdr6130_create_backlight(struct mipi_dsi_device *dsi)233{234 struct device *dev = &dsi->dev;235 const struct backlight_properties props = {236 .type = BACKLIGHT_RAW,237 .brightness = 4095,238 .max_brightness = 4095,239 };240 241 return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,242 &visionox_vtdr6130_bl_ops, &props);243}244 245static int visionox_vtdr6130_probe(struct mipi_dsi_device *dsi)246{247 struct device *dev = &dsi->dev;248 struct visionox_vtdr6130 *ctx;249 int ret;250 251 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);252 if (!ctx)253 return -ENOMEM;254 255 ret = devm_regulator_bulk_get_const(&dsi->dev,256 ARRAY_SIZE(visionox_vtdr6130_supplies),257 visionox_vtdr6130_supplies,258 &ctx->supplies);259 if (ret < 0)260 return ret;261 262 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);263 if (IS_ERR(ctx->reset_gpio))264 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),265 "Failed to get reset-gpios\n");266 267 ctx->dsi = dsi;268 mipi_dsi_set_drvdata(dsi, ctx);269 270 dsi->lanes = 4;271 dsi->format = MIPI_DSI_FMT_RGB888;272 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET |273 MIPI_DSI_CLOCK_NON_CONTINUOUS;274 ctx->panel.prepare_prev_first = true;275 276 drm_panel_init(&ctx->panel, dev, &visionox_vtdr6130_panel_funcs,277 DRM_MODE_CONNECTOR_DSI);278 279 ctx->panel.backlight = visionox_vtdr6130_create_backlight(dsi);280 if (IS_ERR(ctx->panel.backlight))281 return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),282 "Failed to create backlight\n");283 284 drm_panel_add(&ctx->panel);285 286 ret = mipi_dsi_attach(dsi);287 if (ret < 0) {288 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);289 drm_panel_remove(&ctx->panel);290 return ret;291 }292 293 return 0;294}295 296static void visionox_vtdr6130_remove(struct mipi_dsi_device *dsi)297{298 struct visionox_vtdr6130 *ctx = mipi_dsi_get_drvdata(dsi);299 int ret;300 301 ret = mipi_dsi_detach(dsi);302 if (ret < 0)303 dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);304 305 drm_panel_remove(&ctx->panel);306}307 308static const struct of_device_id visionox_vtdr6130_of_match[] = {309 { .compatible = "visionox,vtdr6130" },310 { /* sentinel */ }311};312MODULE_DEVICE_TABLE(of, visionox_vtdr6130_of_match);313 314static struct mipi_dsi_driver visionox_vtdr6130_driver = {315 .probe = visionox_vtdr6130_probe,316 .remove = visionox_vtdr6130_remove,317 .driver = {318 .name = "panel-visionox-vtdr6130",319 .of_match_table = visionox_vtdr6130_of_match,320 },321};322module_mipi_dsi_driver(visionox_vtdr6130_driver);323 324MODULE_AUTHOR("Neil Armstrong <neil.armstrong@linaro.org>");325MODULE_DESCRIPTION("Panel driver for the Visionox VTDR6130 AMOLED DSI panel");326MODULE_LICENSE("GPL");327