Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Caleb Connolly | 1573 | 99.12% | 1 | 20.00% |
Javier Martinez Canillas | 8 | 0.50% | 1 | 20.00% |
Richard Acayan | 3 | 0.19% | 1 | 20.00% |
caihuoqing | 2 | 0.13% | 1 | 20.00% |
Uwe Kleine-König | 1 | 0.06% | 1 | 20.00% |
Total | 1587 | 5 |
// SPDX-License-Identifier: GPL-2.0-only /* Copyright (c) 2020 Caleb Connolly <caleb@connolly.tech> * Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: * Copyright (c) 2020, The Linux Foundation. All rights reserved. */ #include <linux/delay.h> #include <linux/gpio/consumer.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/regulator/consumer.h> #include <linux/backlight.h> #include <video/mipi_display.h> #include <drm/drm_mipi_dsi.h> #include <drm/drm_modes.h> #include <drm/drm_panel.h> struct sofef00_panel { struct drm_panel panel; struct mipi_dsi_device *dsi; struct regulator *supply; struct gpio_desc *reset_gpio; const struct drm_display_mode *mode; bool prepared; }; static inline struct sofef00_panel *to_sofef00_panel(struct drm_panel *panel) { return container_of(panel, struct sofef00_panel, panel); } static void sofef00_panel_reset(struct sofef00_panel *ctx) { gpiod_set_value_cansleep(ctx->reset_gpio, 0); usleep_range(5000, 6000); gpiod_set_value_cansleep(ctx->reset_gpio, 1); usleep_range(2000, 3000); gpiod_set_value_cansleep(ctx->reset_gpio, 0); usleep_range(12000, 13000); } static int sofef00_panel_on(struct sofef00_panel *ctx) { struct mipi_dsi_device *dsi = ctx->dsi; struct device *dev = &dsi->dev; int ret; dsi->mode_flags |= MIPI_DSI_MODE_LPM; ret = mipi_dsi_dcs_exit_sleep_mode(dsi); if (ret < 0) { dev_err(dev, "Failed to exit sleep mode: %d\n", ret); return ret; } usleep_range(10000, 11000); mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); if (ret < 0) { dev_err(dev, "Failed to set tear on: %d\n", ret); return ret; } mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); mipi_dsi_dcs_write_seq(dsi, 0xf0, 0x5a, 0x5a); mipi_dsi_dcs_write_seq(dsi, 0xb0, 0x07); mipi_dsi_dcs_write_seq(dsi, 0xb6, 0x12); mipi_dsi_dcs_write_seq(dsi, 0xf0, 0xa5, 0xa5); mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20); mipi_dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x00); ret = mipi_dsi_dcs_set_display_on(dsi); if (ret < 0) { dev_err(dev, "Failed to set display on: %d\n", ret); return ret; } return 0; } static int sofef00_panel_off(struct sofef00_panel *ctx) { struct mipi_dsi_device *dsi = ctx->dsi; struct device *dev = &dsi->dev; int ret; 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(40); ret = mipi_dsi_dcs_enter_sleep_mode(dsi); if (ret < 0) { dev_err(dev, "Failed to enter sleep mode: %d\n", ret); return ret; } msleep(160); return 0; } static int sofef00_panel_prepare(struct drm_panel *panel) { struct sofef00_panel *ctx = to_sofef00_panel(panel); struct device *dev = &ctx->dsi->dev; int ret; if (ctx->prepared) return 0; ret = regulator_enable(ctx->supply); if (ret < 0) { dev_err(dev, "Failed to enable regulator: %d\n", ret); return ret; } sofef00_panel_reset(ctx); ret = sofef00_panel_on(ctx); if (ret < 0) { dev_err(dev, "Failed to initialize panel: %d\n", ret); gpiod_set_value_cansleep(ctx->reset_gpio, 1); return ret; } ctx->prepared = true; return 0; } static int sofef00_panel_unprepare(struct drm_panel *panel) { struct sofef00_panel *ctx = to_sofef00_panel(panel); struct device *dev = &ctx->dsi->dev; int ret; if (!ctx->prepared) return 0; ret = sofef00_panel_off(ctx); if (ret < 0) dev_err(dev, "Failed to un-initialize panel: %d\n", ret); regulator_disable(ctx->supply); ctx->prepared = false; return 0; } static const struct drm_display_mode enchilada_panel_mode = { .clock = (1080 + 112 + 16 + 36) * (2280 + 36 + 8 + 12) * 60 / 1000, .hdisplay = 1080, .hsync_start = 1080 + 112, .hsync_end = 1080 + 112 + 16, .htotal = 1080 + 112 + 16 + 36, .vdisplay = 2280, .vsync_start = 2280 + 36, .vsync_end = 2280 + 36 + 8, .vtotal = 2280 + 36 + 8 + 12, .width_mm = 68, .height_mm = 145, }; static const struct drm_display_mode fajita_panel_mode = { .clock = (1080 + 72 + 16 + 36) * (2340 + 32 + 4 + 18) * 60 / 1000, .hdisplay = 1080, .hsync_start = 1080 + 72, .hsync_end = 1080 + 72 + 16, .htotal = 1080 + 72 + 16 + 36, .vdisplay = 2340, .vsync_start = 2340 + 32, .vsync_end = 2340 + 32 + 4, .vtotal = 2340 + 32 + 4 + 18, .width_mm = 68, .height_mm = 145, }; static int sofef00_panel_get_modes(struct drm_panel *panel, struct drm_connector *connector) { struct drm_display_mode *mode; struct sofef00_panel *ctx = to_sofef00_panel(panel); mode = drm_mode_duplicate(connector->dev, ctx->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 sofef00_panel_panel_funcs = { .prepare = sofef00_panel_prepare, .unprepare = sofef00_panel_unprepare, .get_modes = sofef00_panel_get_modes, }; static int sofef00_panel_bl_update_status(struct backlight_device *bl) { struct mipi_dsi_device *dsi = bl_get_data(bl); int err; u16 brightness = (u16)backlight_get_brightness(bl); err = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness); if (err < 0) return err; return 0; } static const struct backlight_ops sofef00_panel_bl_ops = { .update_status = sofef00_panel_bl_update_status, }; static struct backlight_device * sofef00_create_backlight(struct mipi_dsi_device *dsi) { struct device *dev = &dsi->dev; const struct backlight_properties props = { .type = BACKLIGHT_PLATFORM, .brightness = 1023, .max_brightness = 1023, }; return devm_backlight_device_register(dev, dev_name(dev), dev, dsi, &sofef00_panel_bl_ops, &props); } static int sofef00_panel_probe(struct mipi_dsi_device *dsi) { struct device *dev = &dsi->dev; struct sofef00_panel *ctx; int ret; ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; ctx->mode = of_device_get_match_data(dev); if (!ctx->mode) { dev_err(dev, "Missing device mode\n"); return -ENODEV; } ctx->supply = devm_regulator_get(dev, "vddio"); if (IS_ERR(ctx->supply)) return dev_err_probe(dev, PTR_ERR(ctx->supply), "Failed to get vddio regulator\n"); ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); 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; drm_panel_init(&ctx->panel, dev, &sofef00_panel_panel_funcs, DRM_MODE_CONNECTOR_DSI); ctx->panel.backlight = sofef00_create_backlight(dsi); if (IS_ERR(ctx->panel.backlight)) return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight), "Failed to create backlight\n"); drm_panel_add(&ctx->panel); ret = mipi_dsi_attach(dsi); if (ret < 0) { dev_err(dev, "Failed to attach to DSI host: %d\n", ret); drm_panel_remove(&ctx->panel); return ret; } return 0; } static void sofef00_panel_remove(struct mipi_dsi_device *dsi) { struct sofef00_panel *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 sofef00_panel_of_match[] = { { // OnePlus 6 / enchilada .compatible = "samsung,sofef00", .data = &enchilada_panel_mode, }, { // OnePlus 6T / fajita .compatible = "samsung,s6e3fc2x01", .data = &fajita_panel_mode, }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, sofef00_panel_of_match); static struct mipi_dsi_driver sofef00_panel_driver = { .probe = sofef00_panel_probe, .remove = sofef00_panel_remove, .driver = { .name = "panel-oneplus6", .of_match_table = sofef00_panel_of_match, }, }; module_mipi_dsi_driver(sofef00_panel_driver); MODULE_AUTHOR("Caleb Connolly <caleb@connolly.tech>"); MODULE_DESCRIPTION("DRM driver for Samsung AMOLED DSI panels found in OnePlus 6/6T phones"); MODULE_LICENSE("GPL v2");
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