// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2024 Barnabas Czeman <barnabas.czeman@mainlining.org>
// Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree:
// Copyright (c) 2013, The Linux Foundation. All rights reserved.
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/mod_devicetable.h>
#include <linux/module.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>
#include <drm/drm_probe_helper.h>
struct boe_td4320 {
struct drm_panel panel;
struct mipi_dsi_device *dsi;
struct regulator_bulk_data *supplies;
struct gpio_desc *reset_gpio;
};
static const struct regulator_bulk_data boe_td4320_supplies[] = {
{ .supply = "iovcc" },
{ .supply = "vsn" },
{ .supply = "vsp" },
};
static inline struct boe_td4320 *to_boe_td4320(struct drm_panel *panel)
{
return container_of(panel, struct boe_td4320, panel);
}
static void boe_td4320_reset(struct boe_td4320 *ctx)
{
gpiod_set_value_cansleep(ctx->reset_gpio, 0 );
usleep_range(1000 , 2000 );
gpiod_set_value_cansleep(ctx->reset_gpio, 1 );
usleep_range(5000 , 6000 );
gpiod_set_value_cansleep(ctx->reset_gpio, 0 );
msleep(30 );
}
static int boe_td4320_on(struct boe_td4320 *ctx)
{
struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
ctx->dsi->mode_flags |= MIPI_DSI_MODE_LPM;
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0 xb0, 0 x04);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0 xd6, 0 x00);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0 xb8,
0 x19, 0 x55, 0 x00, 0 xbe, 0 x00, 0 x00,
0 x00);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0 xb9,
0 x4d, 0 x55, 0 x05, 0 xe6, 0 x00, 0 x02,
0 x03);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0 xba,
0 x9b, 0 x5b, 0 x07, 0 xe6, 0 x00, 0 x13,
0 x00);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0 xf9,
0 x44, 0 x3f, 0 x00, 0 x8d, 0 xbf);
mipi_dsi_generic_write_seq_multi(&dsi_ctx, 0 xce,
0 x5d, 0 x00, 0 x0f, 0 x1f, 0 x2f, 0 x3f,
0 x4f, 0 x5f, 0 x6f, 0 x7f, 0 x8f, 0 x9f,
0 xaf, 0 xbf, 0 xcf, 0 xdf, 0 xef, 0 xff,
0 x04, 0 x00, 0 x02, 0 x02, 0 x42, 0 x01,
0 x69, 0 x5a, 0 x40, 0 x40, 0 x00, 0 x00,
0 x04, 0 xfa, 0 x00);
mipi_dsi_dcs_set_display_brightness_multi(&dsi_ctx, 0 x00b8);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY,
0 x2c);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_POWER_SAVE, 0 x00);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0 xb0, 0 x03);
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0 x11, 0 x00);
mipi_dsi_msleep(&dsi_ctx, 96 );
mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0 x29, 0 x00);
mipi_dsi_msleep(&dsi_ctx, 20 );
return dsi_ctx.accum_err;
}
static int boe_td4320_off(struct boe_td4320 *ctx)
{
struct mipi_dsi_multi_context dsi_ctx = { .dsi = ctx->dsi };
ctx->dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
mipi_dsi_msleep(&dsi_ctx, 20 );
mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
mipi_dsi_msleep(&dsi_ctx, 120 );
return dsi_ctx.accum_err;
}
static int boe_td4320_prepare(struct drm_panel *panel)
{
struct boe_td4320 *ctx = to_boe_td4320(panel);
struct device *dev = &ctx->dsi->dev;
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(boe_td4320_supplies), ctx->supplies);
if (ret < 0 ) {
dev_err(dev, "Failed to enable regulators: %d\n" , ret);
return ret;
}
boe_td4320_reset(ctx);
ret = boe_td4320_on(ctx);
if (ret < 0 ) {
dev_err(dev, "Failed to initialize panel: %d\n" , ret);
gpiod_set_value_cansleep(ctx->reset_gpio, 1 );
regulator_bulk_disable(ARRAY_SIZE(boe_td4320_supplies), ctx->supplies);
return ret;
}
return 0 ;
}
static int boe_td4320_unprepare(struct drm_panel *panel)
{
struct boe_td4320 *ctx = to_boe_td4320(panel);
struct device *dev = &ctx->dsi->dev;
int ret;
ret = boe_td4320_off(ctx);
if (ret < 0 )
dev_err(dev, "Failed to un-initialize panel: %d\n" , ret);
gpiod_set_value_cansleep(ctx->reset_gpio, 1 );
regulator_bulk_disable(ARRAY_SIZE(boe_td4320_supplies), ctx->supplies);
return 0 ;
}
static const struct drm_display_mode boe_td4320_mode = {
.clock = (1080 + 86 + 2 + 100 ) * (2340 + 4 + 4 + 60 ) * 60 / 1000 ,
.hdisplay = 1080 ,
.hsync_start = 1080 + 86 ,
.hsync_end = 1080 + 86 + 2 ,
.htotal = 1080 + 86 + 2 + 100 ,
.vdisplay = 2340 ,
.vsync_start = 2340 + 4 ,
.vsync_end = 2340 + 4 + 4 ,
.vtotal = 2340 + 4 + 4 + 60 ,
.width_mm = 67 ,
.height_mm = 145 ,
.type = DRM_MODE_TYPE_DRIVER,
};
static int boe_td4320_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
return drm_connector_helper_get_modes_fixed(connector, &boe_td4320_mode);
}
static const struct drm_panel_funcs boe_td4320_panel_funcs = {
.prepare = boe_td4320_prepare,
.unprepare = boe_td4320_unprepare,
.get_modes = boe_td4320_get_modes,
};
static int boe_td4320_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct boe_td4320 *ctx;
int ret;
ctx = devm_drm_panel_alloc(dev, struct boe_td4320, panel,
&boe_td4320_panel_funcs,
DRM_MODE_CONNECTOR_DSI);
if (IS_ERR(ctx))
return PTR_ERR(ctx);
ret = devm_regulator_bulk_get_const(dev,
ARRAY_SIZE(boe_td4320_supplies),
boe_td4320_supplies,
&ctx->supplies);
if (ret < 0 )
return ret;
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;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
MIPI_DSI_CLOCK_NON_CONTINUOUS;
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_td4320_remove(struct mipi_dsi_device *dsi)
{
struct boe_td4320 *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_td4320_of_match[] = {
{ .compatible = "boe,td4320" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, boe_td4320_of_match);
static struct mipi_dsi_driver boe_td4320_driver = {
.probe = boe_td4320_probe,
.remove = boe_td4320_remove,
.driver = {
.name = "panel-boe-td4320" ,
.of_match_table = boe_td4320_of_match,
},
};
module_mipi_dsi_driver(boe_td4320_driver);
MODULE_AUTHOR("Barnabas Czeman <barnabas.czeman@mainlining.org>" );
MODULE_DESCRIPTION("DRM driver for boe td4320 fhdplus video mode dsi panel" );
MODULE_LICENSE("GPL" );
Messung V0.5 in Prozent C=95 H=93 G=93
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-06-08)
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