Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Angelo G. Del Regno | 2093 | 99.48% | 1 | 33.33% |
Javier Martinez Canillas | 10 | 0.48% | 1 | 33.33% |
Uwe Kleine-König | 1 | 0.05% | 1 | 33.33% |
Total | 2104 | 3 |
// SPDX-License-Identifier: GPL-2.0-only /* * BOE BF060Y8M-AJ0 5.99" MIPI-DSI OLED Panel on SW43404 DriverIC * * Copyright (c) 2020 AngeloGioacchino Del Regno * <angelogioacchino.delregno@somainline.org> */ #include <linux/backlight.h> #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/of.h> #include <linux/regulator/consumer.h> #include <video/mipi_display.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_modes.h> #include <drm/drm_panel.h> #define DCS_ALLOW_HBM_RANGE 0x0c #define DCS_DISALLOW_HBM_RANGE 0x08 enum boe_bf060y8m_aj0_supplies { BF060Y8M_VREG_VCC, BF060Y8M_VREG_VDDIO, BF060Y8M_VREG_VCI, BF060Y8M_VREG_EL_VDD, BF060Y8M_VREG_EL_VSS, BF060Y8M_VREG_MAX }; struct boe_bf060y8m_aj0 { struct drm_panel panel; struct mipi_dsi_device *dsi; struct regulator_bulk_data vregs[BF060Y8M_VREG_MAX]; struct gpio_desc *reset_gpio; bool prepared; }; static inline struct boe_bf060y8m_aj0 *to_boe_bf060y8m_aj0(struct drm_panel *panel) { return container_of(panel, struct boe_bf060y8m_aj0, panel); } static void boe_bf060y8m_aj0_reset(struct boe_bf060y8m_aj0 *boe) { gpiod_set_value_cansleep(boe->reset_gpio, 0); usleep_range(2000, 3000); gpiod_set_value_cansleep(boe->reset_gpio, 1); usleep_range(15000, 16000); gpiod_set_value_cansleep(boe->reset_gpio, 0); usleep_range(5000, 6000); } static int boe_bf060y8m_aj0_on(struct boe_bf060y8m_aj0 *boe) { struct mipi_dsi_device *dsi = boe->dsi; struct device *dev = &dsi->dev; int ret; mipi_dsi_dcs_write_seq(dsi, 0xb0, 0xa5, 0x00); mipi_dsi_dcs_write_seq(dsi, 0xb2, 0x00, 0x4c); mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_SET_3D_CONTROL, 0x10); mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, DCS_ALLOW_HBM_RANGE); mipi_dsi_dcs_write_seq(dsi, 0xf8, 0x00, 0x08, 0x10, 0x00, 0x22, 0x00, 0x00, 0x2d); ret = mipi_dsi_dcs_exit_sleep_mode(dsi); if (ret < 0) { dev_err(dev, "Failed to exit sleep mode: %d\n", ret); return ret; } msleep(30); mipi_dsi_dcs_write_seq(dsi, 0xb0, 0xa5, 0x00); mipi_dsi_dcs_write_seq(dsi, 0xc0, 0x08, 0x48, 0x65, 0x33, 0x33, 0x33, 0x2a, 0x31, 0x39, 0x20, 0x09); mipi_dsi_dcs_write_seq(dsi, 0xc1, 0x00, 0x00, 0x00, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f, 0x1f); mipi_dsi_dcs_write_seq(dsi, 0xe2, 0x20, 0x04, 0x10, 0x12, 0x92, 0x4f, 0x8f, 0x44, 0x84, 0x83, 0x83, 0x83, 0x5c, 0x5c, 0x5c); mipi_dsi_dcs_write_seq(dsi, 0xde, 0x01, 0x2c, 0x00, 0x77, 0x3e); msleep(30); ret = mipi_dsi_dcs_set_display_on(dsi); if (ret < 0) { dev_err(dev, "Failed to set display on: %d\n", ret); return ret; } msleep(50); return 0; } static int boe_bf060y8m_aj0_off(struct boe_bf060y8m_aj0 *boe) { struct mipi_dsi_device *dsi = boe->dsi; struct device *dev = &dsi->dev; int ret; /* OFF commands sent in HS mode */ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; ret = mipi_dsi_dcs_set_display_off(dsi); if (ret < 0) { dev_err(dev, "Failed to set display off: %d\n", ret); return ret; } msleep(20); ret = mipi_dsi_dcs_enter_sleep_mode(dsi); if (ret < 0) { dev_err(dev, "Failed to enter sleep mode: %d\n", ret); return ret; } usleep_range(1000, 2000); dsi->mode_flags |= MIPI_DSI_MODE_LPM; return 0; } static int boe_bf060y8m_aj0_prepare(struct drm_panel *panel) { struct boe_bf060y8m_aj0 *boe = to_boe_bf060y8m_aj0(panel); struct device *dev = &boe->dsi->dev; int ret; if (boe->prepared) return 0; /* * Enable EL Driving Voltage first - doing that at the beginning * or at the end of the power sequence doesn't matter, so enable * it here to avoid yet another usleep at the end. */ ret = regulator_enable(boe->vregs[BF060Y8M_VREG_EL_VDD].consumer); if (ret) return ret; ret = regulator_enable(boe->vregs[BF060Y8M_VREG_EL_VSS].consumer); if (ret) goto err_elvss; ret = regulator_enable(boe->vregs[BF060Y8M_VREG_VCC].consumer); if (ret) goto err_vcc; usleep_range(1000, 2000); ret = regulator_enable(boe->vregs[BF060Y8M_VREG_VDDIO].consumer); if (ret) goto err_vddio; usleep_range(500, 1000); ret = regulator_enable(boe->vregs[BF060Y8M_VREG_VCI].consumer); if (ret) goto err_vci; usleep_range(2000, 3000); boe_bf060y8m_aj0_reset(boe); ret = boe_bf060y8m_aj0_on(boe); if (ret < 0) { dev_err(dev, "Failed to initialize panel: %d\n", ret); gpiod_set_value_cansleep(boe->reset_gpio, 1); return ret; } boe->prepared = true; return 0; err_vci: regulator_disable(boe->vregs[BF060Y8M_VREG_VDDIO].consumer); err_vddio: regulator_disable(boe->vregs[BF060Y8M_VREG_VCC].consumer); err_vcc: regulator_disable(boe->vregs[BF060Y8M_VREG_EL_VSS].consumer); err_elvss: regulator_disable(boe->vregs[BF060Y8M_VREG_EL_VDD].consumer); return ret; } static int boe_bf060y8m_aj0_unprepare(struct drm_panel *panel) { struct boe_bf060y8m_aj0 *boe = to_boe_bf060y8m_aj0(panel); struct device *dev = &boe->dsi->dev; int ret; if (!boe->prepared) return 0; ret = boe_bf060y8m_aj0_off(boe); if (ret < 0) dev_err(dev, "Failed to un-initialize panel: %d\n", ret); gpiod_set_value_cansleep(boe->reset_gpio, 1); ret = regulator_bulk_disable(ARRAY_SIZE(boe->vregs), boe->vregs); boe->prepared = false; return 0; } static const struct drm_display_mode boe_bf060y8m_aj0_mode = { .clock = 165268, .hdisplay = 1080, .hsync_start = 1080 + 36, .hsync_end = 1080 + 36 + 24, .htotal = 1080 + 36 + 24 + 96, .vdisplay = 2160, .vsync_start = 2160 + 16, .vsync_end = 2160 + 16 + 1, .vtotal = 2160 + 16 + 1 + 15, .width_mm = 68, /* 68.04 mm */ .height_mm = 136, /* 136.08 mm */ }; static int boe_bf060y8m_aj0_get_modes(struct drm_panel *panel, struct drm_connector *connector) { struct drm_display_mode *mode; mode = drm_mode_duplicate(connector->dev, &boe_bf060y8m_aj0_mode); if (!mode) return -ENOMEM; drm_mode_set_name(mode); mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; connector->display_info.width_mm = mode->width_mm; connector->display_info.height_mm = mode->height_mm; drm_mode_probed_add(connector, mode); return 1; } static const struct drm_panel_funcs boe_bf060y8m_aj0_panel_funcs = { .prepare = boe_bf060y8m_aj0_prepare, .unprepare = boe_bf060y8m_aj0_unprepare, .get_modes = boe_bf060y8m_aj0_get_modes, }; static int boe_bf060y8m_aj0_bl_update_status(struct backlight_device *bl) { struct mipi_dsi_device *dsi = bl_get_data(bl); u16 brightness = backlight_get_brightness(bl); int ret; ret = mipi_dsi_dcs_set_display_brightness(dsi, brightness); if (ret < 0) return ret; return 0; } static int boe_bf060y8m_aj0_bl_get_brightness(struct backlight_device *bl) { struct mipi_dsi_device *dsi = bl_get_data(bl); u16 brightness; int ret; ret = mipi_dsi_dcs_get_display_brightness(dsi, &brightness); if (ret < 0) return ret; return brightness & 0xff; } static const struct backlight_ops boe_bf060y8m_aj0_bl_ops = { .update_status = boe_bf060y8m_aj0_bl_update_status, .get_brightness = boe_bf060y8m_aj0_bl_get_brightness, }; static struct backlight_device * boe_bf060y8m_aj0_create_backlight(struct mipi_dsi_device *dsi) { struct device *dev = &dsi->dev; const struct backlight_properties props = { .type = BACKLIGHT_RAW, .brightness = 127, .max_brightness = 255, .scale = BACKLIGHT_SCALE_NON_LINEAR, }; return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, &boe_bf060y8m_aj0_bl_ops, &props); } static int boe_bf060y8m_aj0_init_vregs(struct boe_bf060y8m_aj0 *boe, struct device *dev) { struct regulator *vreg; int ret; boe->vregs[BF060Y8M_VREG_VCC].supply = "vcc"; boe->vregs[BF060Y8M_VREG_VDDIO].supply = "vddio"; boe->vregs[BF060Y8M_VREG_VCI].supply = "vci"; boe->vregs[BF060Y8M_VREG_EL_VDD].supply = "elvdd"; boe->vregs[BF060Y8M_VREG_EL_VSS].supply = "elvss"; ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(boe->vregs), boe->vregs); if (ret < 0) { dev_err(dev, "Failed to get regulators: %d\n", ret); return ret; } vreg = boe->vregs[BF060Y8M_VREG_VCC].consumer; ret = regulator_is_supported_voltage(vreg, 2700000, 3600000); if (!ret) return ret; vreg = boe->vregs[BF060Y8M_VREG_VDDIO].consumer; ret = regulator_is_supported_voltage(vreg, 1620000, 1980000); if (!ret) return ret; vreg = boe->vregs[BF060Y8M_VREG_VCI].consumer; ret = regulator_is_supported_voltage(vreg, 2600000, 3600000); if (!ret) return ret; vreg = boe->vregs[BF060Y8M_VREG_EL_VDD].consumer; ret = regulator_is_supported_voltage(vreg, 4400000, 4800000); if (!ret) return ret; /* ELVSS is negative: -5.00V to -1.40V */ vreg = boe->vregs[BF060Y8M_VREG_EL_VSS].consumer; ret = regulator_is_supported_voltage(vreg, 1400000, 5000000); if (!ret) return ret; /* * Set min/max rated current, known only for VCI and VDDIO and, * in case of failure, just go on gracefully, as this step is not * guaranteed to succeed on all regulator HW but do a debug print * to inform the developer during debugging. * In any case, these two supplies are also optional, so they may * be fixed-regulator which, at the time of writing, does not * support fake current limiting. */ vreg = boe->vregs[BF060Y8M_VREG_VDDIO].consumer; ret = regulator_set_current_limit(vreg, 1500, 2500); if (ret) dev_dbg(dev, "Current limit cannot be set on %s: %d\n", boe->vregs[1].supply, ret); vreg = boe->vregs[BF060Y8M_VREG_VCI].consumer; ret = regulator_set_current_limit(vreg, 20000, 40000); if (ret) dev_dbg(dev, "Current limit cannot be set on %s: %d\n", boe->vregs[2].supply, ret); return 0; } static int boe_bf060y8m_aj0_probe(struct mipi_dsi_device *dsi) { struct device *dev = &dsi->dev; struct boe_bf060y8m_aj0 *boe; int ret; boe = devm_kzalloc(dev, sizeof(*boe), GFP_KERNEL); if (!boe) return -ENOMEM; ret = boe_bf060y8m_aj0_init_vregs(boe, dev); if (ret) return dev_err_probe(dev, ret, "Failed to initialize supplies.\n"); boe->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_ASIS); if (IS_ERR(boe->reset_gpio)) return dev_err_probe(dev, PTR_ERR(boe->reset_gpio), "Failed to get reset-gpios\n"); boe->dsi = dsi; mipi_dsi_set_drvdata(dsi, boe); dsi->lanes = 4; dsi->format = MIPI_DSI_FMT_RGB888; dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_NO_EOT_PACKET | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM; drm_panel_init(&boe->panel, dev, &boe_bf060y8m_aj0_panel_funcs, DRM_MODE_CONNECTOR_DSI); boe->panel.backlight = boe_bf060y8m_aj0_create_backlight(dsi); if (IS_ERR(boe->panel.backlight)) return dev_err_probe(dev, PTR_ERR(boe->panel.backlight), "Failed to create backlight\n"); drm_panel_add(&boe->panel); ret = mipi_dsi_attach(dsi); if (ret < 0) { dev_err(dev, "Failed to attach to DSI host: %d\n", ret); return ret; } return 0; } static void boe_bf060y8m_aj0_remove(struct mipi_dsi_device *dsi) { struct boe_bf060y8m_aj0 *boe = 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(&boe->panel); } static const struct of_device_id boe_bf060y8m_aj0_of_match[] = { { .compatible = "boe,bf060y8m-aj0" }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, boe_bf060y8m_aj0_of_match); static struct mipi_dsi_driver boe_bf060y8m_aj0_driver = { .probe = boe_bf060y8m_aj0_probe, .remove = boe_bf060y8m_aj0_remove, .driver = { .name = "panel-sw43404-boe-fhd-amoled", .of_match_table = boe_bf060y8m_aj0_of_match, }, }; module_mipi_dsi_driver(boe_bf060y8m_aj0_driver); MODULE_AUTHOR("AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>"); MODULE_DESCRIPTION("BOE BF060Y8M-AJ0 MIPI-DSI OLED panel"); MODULE_LICENSE("GPL v2");
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