376 lines · c
1//SPDX-License-Identifier: GPL-2.0-only2//Copyright (c) 2023 Qualcomm Innovation Center, Inc. All rights reserved.3 4#include <linux/backlight.h>5#include <linux/delay.h>6#include <linux/gpio/consumer.h>7#include <linux/module.h>8#include <linux/of.h>9#include <linux/regulator/consumer.h>10 11#include <drm/drm_mipi_dsi.h>12#include <drm/drm_probe_helper.h>13#include <drm/drm_modes.h>14#include <drm/drm_panel.h>15#include <drm/display/drm_dsc.h>16#include <drm/display/drm_dsc_helper.h>17 18#include <video/mipi_display.h>19 20struct visionox_r66451 {21 struct drm_panel panel;22 struct mipi_dsi_device *dsi;23 struct gpio_desc *reset_gpio;24 struct regulator_bulk_data supplies[2];25};26 27static inline struct visionox_r66451 *to_visionox_r66451(struct drm_panel *panel)28{29 return container_of(panel, struct visionox_r66451, panel);30}31 32static void visionox_r66451_reset(struct visionox_r66451 *ctx)33{34 gpiod_set_value_cansleep(ctx->reset_gpio, 0);35 usleep_range(10000, 10100);36 gpiod_set_value_cansleep(ctx->reset_gpio, 1);37 usleep_range(10000, 10100);38 gpiod_set_value_cansleep(ctx->reset_gpio, 0);39 usleep_range(10000, 10100);40}41 42static int visionox_r66451_on(struct visionox_r66451 *ctx)43{44 struct mipi_dsi_device *dsi = ctx->dsi;45 46 dsi->mode_flags |= MIPI_DSI_MODE_LPM;47 48 mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00);49 mipi_dsi_dcs_write_seq(dsi, 0xc2,50 0x09, 0x24, 0x0c, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00,51 0x09, 0x3c);52 mipi_dsi_dcs_write_seq(dsi, 0xd7,53 0x00, 0xb9, 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a,54 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19,55 0x3c, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a);56 mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80);57 mipi_dsi_dcs_write_seq(dsi, 0xde,58 0x40, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18,59 0x10, 0x00, 0x18, 0x00, 0x18, 0x00, 0x18, 0x02, 0x00, 0x00);60 mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04);61 mipi_dsi_dcs_write_seq(dsi, 0xe8, 0x00, 0x02);62 mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x00, 0x08);63 mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x00);64 mipi_dsi_dcs_write_seq(dsi, 0xc4,65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,66 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x32);67 mipi_dsi_dcs_write_seq(dsi, 0xcf,68 0x64, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08,69 0x00, 0x0b, 0x77, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,70 0x02, 0x02, 0x02, 0x02, 0x02, 0x03);71 mipi_dsi_dcs_write_seq(dsi, 0xd3,72 0x45, 0x00, 0x00, 0x01, 0x13, 0x15, 0x00, 0x15, 0x07,73 0x0f, 0x77, 0x77, 0x77, 0x37, 0xb2, 0x11, 0x00, 0xa0,74 0x3c, 0x9c);75 mipi_dsi_dcs_write_seq(dsi, 0xd7,76 0x00, 0xb9, 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a,77 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x19,78 0x34, 0x00, 0x40, 0x04, 0x00, 0xa0, 0x0a);79 mipi_dsi_dcs_write_seq(dsi, 0xd8,80 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,81 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a, 0x00, 0x3a,82 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,83 0x00, 0x0a, 0x00, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00,84 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a,85 0x00, 0x32, 0x00, 0x0a, 0x00, 0x22);86 mipi_dsi_dcs_write_seq(dsi, 0xdf,87 0x50, 0x42, 0x58, 0x81, 0x2d, 0x00, 0x00, 0x00, 0x00,88 0x00, 0x00, 0x6b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,89 0x00, 0x00, 0x01, 0x0f, 0xff, 0xd4, 0x0e, 0x00, 0x00,90 0x00, 0x00, 0x00, 0x00, 0x0f, 0x53, 0xf1, 0x00, 0x00,91 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);92 mipi_dsi_dcs_write_seq(dsi, 0xf7, 0x01);93 mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x80);94 mipi_dsi_dcs_write_seq(dsi, 0xe4, 0x34, 0xb4, 0x00, 0x00, 0x00, 0x39, 0x04, 0x09, 0x34);95 mipi_dsi_dcs_write_seq(dsi, 0xe6, 0x00);96 mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x04);97 mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x40);98 mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x50, 0x00, 0x00, 0x00, 0x00);99 mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x11);100 mipi_dsi_dcs_write_seq(dsi, 0xf3, 0x01, 0x00, 0x00, 0x00, 0x01);101 mipi_dsi_dcs_write_seq(dsi, 0xf4, 0x00, 0x02);102 mipi_dsi_dcs_write_seq(dsi, 0xf2, 0x19);103 mipi_dsi_dcs_write_seq(dsi, 0xdf, 0x50, 0x42);104 mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);105 mipi_dsi_dcs_set_column_address(dsi, 0, 1080 - 1);106 mipi_dsi_dcs_set_page_address(dsi, 0, 2340 - 1);107 108 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;109 110 return 0;111}112 113static int visionox_r66451_off(struct visionox_r66451 *ctx)114{115 ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;116 return 0;117}118 119static int visionox_r66451_prepare(struct drm_panel *panel)120{121 struct visionox_r66451 *ctx = to_visionox_r66451(panel);122 struct mipi_dsi_device *dsi = ctx->dsi;123 struct device *dev = &dsi->dev;124 int ret;125 126 ret = regulator_bulk_enable(ARRAY_SIZE(ctx->supplies),127 ctx->supplies);128 if (ret < 0)129 return ret;130 131 visionox_r66451_reset(ctx);132 133 ret = visionox_r66451_on(ctx);134 if (ret < 0) {135 dev_err(dev, "Failed to initialize panel: %d\n", ret);136 gpiod_set_value_cansleep(ctx->reset_gpio, 1);137 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);138 return ret;139 }140 141 mipi_dsi_compression_mode(ctx->dsi, true);142 143 return 0;144}145 146static int visionox_r66451_unprepare(struct drm_panel *panel)147{148 struct visionox_r66451 *ctx = to_visionox_r66451(panel);149 struct device *dev = &ctx->dsi->dev;150 int ret;151 152 ret = visionox_r66451_off(ctx);153 if (ret < 0)154 dev_err(dev, "Failed to un-initialize panel: %d\n", ret);155 156 gpiod_set_value_cansleep(ctx->reset_gpio, 1);157 regulator_bulk_disable(ARRAY_SIZE(ctx->supplies), ctx->supplies);158 159 return 0;160}161 162static const struct drm_display_mode visionox_r66451_mode = {163 .clock = 345830,164 .hdisplay = 1080,165 .hsync_start = 1175,166 .hsync_end = 1176,167 .htotal = 1216,168 .vdisplay = 2340,169 .vsync_start = 2365,170 .vsync_end = 2366,171 .vtotal = 2370,172 .width_mm = 0,173 .height_mm = 0,174 .type = DRM_MODE_TYPE_DRIVER,175};176 177static int visionox_r66451_enable(struct drm_panel *panel)178{179 struct visionox_r66451 *ctx = to_visionox_r66451(panel);180 struct mipi_dsi_device *dsi = ctx->dsi;181 struct drm_dsc_picture_parameter_set pps;182 int ret;183 184 if (!dsi->dsc) {185 dev_err(&dsi->dev, "DSC not attached to DSI\n");186 return -ENODEV;187 }188 189 drm_dsc_pps_payload_pack(&pps, dsi->dsc);190 ret = mipi_dsi_picture_parameter_set(dsi, &pps);191 if (ret) {192 dev_err(&dsi->dev, "Failed to set PPS\n");193 return ret;194 }195 196 ret = mipi_dsi_dcs_exit_sleep_mode(dsi);197 if (ret < 0) {198 dev_err(&dsi->dev, "Failed to exit sleep mode: %d\n", ret);199 return ret;200 }201 msleep(120);202 203 ret = mipi_dsi_dcs_set_display_on(dsi);204 if (ret < 0) {205 dev_err(&dsi->dev, "Failed on set display on: %d\n", ret);206 return ret;207 }208 msleep(20);209 210 return 0;211}212 213static int visionox_r66451_disable(struct drm_panel *panel)214{215 struct visionox_r66451 *ctx = to_visionox_r66451(panel);216 struct mipi_dsi_device *dsi = ctx->dsi;217 struct device *dev = &dsi->dev;218 int ret;219 220 ret = mipi_dsi_dcs_set_display_off(dsi);221 if (ret < 0) {222 dev_err(dev, "Failed to set display off: %d\n", ret);223 return ret;224 }225 msleep(20);226 227 ret = mipi_dsi_dcs_enter_sleep_mode(dsi);228 if (ret < 0) {229 dev_err(dev, "Failed to enter sleep mode: %d\n", ret);230 return ret;231 }232 msleep(120);233 234 return 0;235}236 237static int visionox_r66451_get_modes(struct drm_panel *panel,238 struct drm_connector *connector)239{240 drm_connector_helper_get_modes_fixed(connector, &visionox_r66451_mode);241 return 1;242}243 244static const struct drm_panel_funcs visionox_r66451_funcs = {245 .prepare = visionox_r66451_prepare,246 .unprepare = visionox_r66451_unprepare,247 .get_modes = visionox_r66451_get_modes,248 .enable = visionox_r66451_enable,249 .disable = visionox_r66451_disable,250};251 252static int visionox_r66451_bl_update_status(struct backlight_device *bl)253{254 struct mipi_dsi_device *dsi = bl_get_data(bl);255 u16 brightness = backlight_get_brightness(bl);256 257 return mipi_dsi_dcs_set_display_brightness(dsi, brightness);258}259 260static const struct backlight_ops visionox_r66451_bl_ops = {261 .update_status = visionox_r66451_bl_update_status,262};263 264static struct backlight_device *265visionox_r66451_create_backlight(struct mipi_dsi_device *dsi)266{267 struct device *dev = &dsi->dev;268 const struct backlight_properties props = {269 .type = BACKLIGHT_RAW,270 .brightness = 255,271 .max_brightness = 4095,272 };273 274 return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,275 &visionox_r66451_bl_ops, &props);276}277 278static int visionox_r66451_probe(struct mipi_dsi_device *dsi)279{280 struct device *dev = &dsi->dev;281 struct visionox_r66451 *ctx;282 struct drm_dsc_config *dsc;283 int ret = 0;284 285 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);286 if (!ctx)287 return -ENOMEM;288 289 dsc = devm_kzalloc(dev, sizeof(*dsc), GFP_KERNEL);290 if (!dsc)291 return -ENOMEM;292 293 /* Set DSC params */294 dsc->dsc_version_major = 0x1;295 dsc->dsc_version_minor = 0x2;296 297 dsc->slice_height = 20;298 dsc->slice_width = 540;299 dsc->slice_count = 2;300 dsc->bits_per_component = 8;301 dsc->bits_per_pixel = 8 << 4;302 dsc->block_pred_enable = true;303 304 dsi->dsc = dsc;305 306 ctx->supplies[0].supply = "vddio";307 ctx->supplies[1].supply = "vdd";308 309 ret = devm_regulator_bulk_get(&dsi->dev, ARRAY_SIZE(ctx->supplies),310 ctx->supplies);311 312 if (ret < 0)313 return ret;314 315 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);316 if (IS_ERR(ctx->reset_gpio))317 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), "Failed to get reset-gpios\n");318 319 ctx->dsi = dsi;320 mipi_dsi_set_drvdata(dsi, ctx);321 322 dsi->lanes = 4;323 dsi->format = MIPI_DSI_FMT_RGB888;324 dsi->mode_flags = MIPI_DSI_MODE_LPM | MIPI_DSI_CLOCK_NON_CONTINUOUS;325 ctx->panel.prepare_prev_first = true;326 327 drm_panel_init(&ctx->panel, dev, &visionox_r66451_funcs, DRM_MODE_CONNECTOR_DSI);328 ctx->panel.backlight = visionox_r66451_create_backlight(dsi);329 if (IS_ERR(ctx->panel.backlight))330 return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),331 "Failed to create backlight\n");332 333 drm_panel_add(&ctx->panel);334 335 ret = mipi_dsi_attach(dsi);336 if (ret < 0) {337 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);338 drm_panel_remove(&ctx->panel);339 }340 341 return ret;342}343 344static void visionox_r66451_remove(struct mipi_dsi_device *dsi)345{346 struct visionox_r66451 *ctx = mipi_dsi_get_drvdata(dsi);347 int ret;348 349 ret = mipi_dsi_detach(dsi);350 if (ret < 0)351 dev_err(&dsi->dev, "Failed to detach DSI host: %d\n", ret);352 353 drm_panel_remove(&ctx->panel);354}355 356static const struct of_device_id visionox_r66451_of_match[] = {357 {.compatible = "visionox,r66451"},358 { /*sentinel*/ }359};360MODULE_DEVICE_TABLE(of, visionox_r66451_of_match);361 362static struct mipi_dsi_driver visionox_r66451_driver = {363 .probe = visionox_r66451_probe,364 .remove = visionox_r66451_remove,365 .driver = {366 .name = "panel-visionox-r66451",367 .of_match_table = visionox_r66451_of_match,368 },369};370 371module_mipi_dsi_driver(visionox_r66451_driver);372 373MODULE_AUTHOR("Jessica Zhang <quic_jesszhan@quicinc.com>");374MODULE_DESCRIPTION("Panel driver for the Visionox R66451 AMOLED DSI panel");375MODULE_LICENSE("GPL");376