// SPDX-License-Identifier: GPL-2.0-only // Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: // Copyright (c) 2013, The Linux Foundation. All rights reserved. // Copyright (c) 2024, Neil Armstrong #include #include #include #include #include #include #include #include #include struct boe_tv101wum_ll2 { struct drm_panel panel; struct mipi_dsi_device *dsi; struct gpio_desc *reset_gpio; struct regulator_bulk_data *supplies; }; static const struct regulator_bulk_data boe_tv101wum_ll2_supplies[] = { { .supply = "vsp" }, { .supply = "vsn" }, }; static inline struct boe_tv101wum_ll2 *to_boe_tv101wum_ll2(struct drm_panel *panel) { return container_of(panel, struct boe_tv101wum_ll2, panel); } static void boe_tv101wum_ll2_reset(struct boe_tv101wum_ll2 *ctx) { gpiod_set_value_cansleep(ctx->reset_gpio, 0); usleep_range(5000, 6000); gpiod_set_value_cansleep(ctx->reset_gpio, 1); usleep_range(5000, 6000); gpiod_set_value_cansleep(ctx->reset_gpio, 0); msleep(120); } static int boe_tv101wum_ll2_on(struct boe_tv101wum_ll2 *ctx) { struct mipi_dsi_device *dsi = ctx->dsi; struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; dsi->mode_flags |= MIPI_DSI_MODE_LPM; mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx); mipi_dsi_msleep(&dsi_ctx, 120); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x0e); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x80, 0xff, 0x81, 0x68, 0x6c, 0x22, 0x6d, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x23); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x90, 0x00, 0x00); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x94, 0x2c, 0x00); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x19); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xa2, 0x38); mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x50, 0x5a, 0x0c); mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x80, 0xfd); mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0x50, 0x00); mipi_dsi_dcs_set_display_on_multi(&dsi_ctx); mipi_dsi_msleep(&dsi_ctx, 20); return dsi_ctx.accum_err; } static void boe_tv101wum_ll2_off(struct boe_tv101wum_ll2 *ctx) { struct mipi_dsi_device *dsi = ctx->dsi; struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi }; dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; mipi_dsi_dcs_set_display_off_multi(&dsi_ctx); mipi_dsi_msleep(&dsi_ctx, 70); mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx); mipi_dsi_msleep(&dsi_ctx, 20); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x04, 0x5a); mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x05, 0x5a); mipi_dsi_msleep(&dsi_ctx, 150); } static int boe_tv101wum_ll2_prepare(struct drm_panel *panel) { struct boe_tv101wum_ll2 *ctx = to_boe_tv101wum_ll2(panel); int ret; ret = regulator_bulk_enable(ARRAY_SIZE(boe_tv101wum_ll2_supplies), ctx->supplies); if (ret < 0) return ret; boe_tv101wum_ll2_reset(ctx); ret = boe_tv101wum_ll2_on(ctx); if (ret < 0) { gpiod_set_value_cansleep(ctx->reset_gpio, 1); regulator_bulk_disable(ARRAY_SIZE(boe_tv101wum_ll2_supplies), ctx->supplies); return ret; } return 0; } static int boe_tv101wum_ll2_unprepare(struct drm_panel *panel) { struct boe_tv101wum_ll2 *ctx = to_boe_tv101wum_ll2(panel); /* Ignore errors on failure, in any case set gpio and disable regulators */ boe_tv101wum_ll2_off(ctx); gpiod_set_value_cansleep(ctx->reset_gpio, 1); regulator_bulk_disable(ARRAY_SIZE(boe_tv101wum_ll2_supplies), ctx->supplies); return 0; } static const struct drm_display_mode boe_tv101wum_ll2_mode = { .clock = (1200 + 27 + 8 + 12) * (1920 + 155 + 8 + 32) * 60 / 1000, .hdisplay = 1200, .hsync_start = 1200 + 27, .hsync_end = 1200 + 27 + 8, .htotal = 1200 + 27 + 8 + 12, .vdisplay = 1920, .vsync_start = 1920 + 155, .vsync_end = 1920 + 155 + 8, .vtotal = 1920 + 155 + 8 + 32, .width_mm = 136, .height_mm = 217, .type = DRM_MODE_TYPE_DRIVER, }; static int boe_tv101wum_ll2_get_modes(struct drm_panel *panel, struct drm_connector *connector) { /* We do not set display_info.bpc since unset value is bpc=8 by default */ return drm_connector_helper_get_modes_fixed(connector, &boe_tv101wum_ll2_mode); } static const struct drm_panel_funcs boe_tv101wum_ll2_panel_funcs = { .prepare = boe_tv101wum_ll2_prepare, .unprepare = boe_tv101wum_ll2_unprepare, .get_modes = boe_tv101wum_ll2_get_modes, }; static int boe_tv101wum_ll2_probe(struct mipi_dsi_device *dsi) { struct device *dev = &dsi->dev; struct boe_tv101wum_ll2 *ctx; int ret; ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; ret = devm_regulator_bulk_get_const(&dsi->dev, ARRAY_SIZE(boe_tv101wum_ll2_supplies), boe_tv101wum_ll2_supplies, &ctx->supplies); if (ret < 0) return ret; ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(ctx->reset_gpio)) return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), "Failed to get reset-gpios\n"); ctx->dsi = dsi; mipi_dsi_set_drvdata(dsi, ctx); dsi->lanes = 4; dsi->format = MIPI_DSI_FMT_RGB888; dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_HSE; drm_panel_init(&ctx->panel, dev, &boe_tv101wum_ll2_panel_funcs, DRM_MODE_CONNECTOR_DSI); ctx->panel.prepare_prev_first = true; ret = drm_panel_of_backlight(&ctx->panel); if (ret) return dev_err_probe(dev, ret, "Failed to get backlight\n"); drm_panel_add(&ctx->panel); ret = mipi_dsi_attach(dsi); if (ret < 0) { drm_panel_remove(&ctx->panel); return dev_err_probe(dev, ret, "Failed to attach to DSI host\n"); } return 0; } static void boe_tv101wum_ll2_remove(struct mipi_dsi_device *dsi) { struct boe_tv101wum_ll2 *ctx = mipi_dsi_get_drvdata(dsi); int ret; ret = mipi_dsi_detach(dsi); if (ret < 0) dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret); drm_panel_remove(&ctx->panel); } static const struct of_device_id boe_tv101wum_ll2_of_match[] = { { .compatible = "boe,tv101wum-ll2" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, boe_tv101wum_ll2_of_match); static struct mipi_dsi_driver boe_tv101wum_ll2_driver = { .probe = boe_tv101wum_ll2_probe, .remove = boe_tv101wum_ll2_remove, .driver = { .name = "panel-boe-tv101wum_ll2", .of_match_table = boe_tv101wum_ll2_of_match, }, }; module_mipi_dsi_driver(boe_tv101wum_ll2_driver); MODULE_DESCRIPTION("DRM driver for BOE TV101WUM-LL2 Panel"); MODULE_LICENSE("GPL");