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video: panel: add Samsung LTL106HL02 MIPI DSI panel driver

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LTL106HL02 is a color active matrix TFT (Thin Film Transistor)
liquid crystal display (LCD) that uses amorphous silicon TFT as
switching devices. This model is composed of a TFT LCD panel, a
driver circuit and a backlight unit. The resolution of a 10.6"
contains 1920 x 1080 pixels and can display up to 16,8M color
with wide viewing angle.

Co-developed-by: Jonas Schwöbel <jonasschwoebel@yahoo.de>
Signed-off-by: Jonas Schwöbel <jonasschwoebel@yahoo.de>
Co-developed-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Anton Bambura <jenneron@protonmail.com>
This commit is contained in:
Anton Bambura 2024-01-31 08:57:16 +02:00 • committed by Anatolij Gustschin
parent 3cb31745c4
commit d6a6dd9079
3 changed files with 167 additions and 0 deletions
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9
drivers/video/Kconfig
View file

@ -555,6 +555,15 @@ config VIDEO_LCD_RENESAS_R69328
IPS-LCD module with Renesas R69328 IC. The panel has a 720x1280
resolution and uses 24 bit RGB per pixel.
config VIDEO_LCD_SAMSUNG_LTL106HL02
tristate "Samsung LTL106HL02 1920x1080 DSI video mode panel"
depends on PANEL && BACKLIGHT
select VIDEO_MIPI_DSI
help
Say Y here if you want to enable support for Samsung LTL106HL02
LCD module found in Microsoft Surface 2. The panel has a FullHD
resolution (1920x1080).
config VIDEO_LCD_SSD2828
bool "SSD2828 bridge chip"
---help---

1
drivers/video/Makefile
View file

@ -63,6 +63,7 @@ obj-$(CONFIG_VIDEO_LCD_ORISETECH_OTM8009A) += orisetech_otm8009a.o
obj-$(CONFIG_VIDEO_LCD_RAYDIUM_RM68200) += raydium-rm68200.o
obj-$(CONFIG_VIDEO_LCD_RENESAS_R61307) += renesas-r61307.o
obj-$(CONFIG_VIDEO_LCD_RENESAS_R69328) += renesas-r69328.o
obj-$(CONFIG_VIDEO_LCD_SAMSUNG_LTL106HL02) += samsung-ltl106hl02.o
obj-$(CONFIG_VIDEO_LCD_SSD2828) += ssd2828.o
obj-$(CONFIG_VIDEO_LCD_TDO_TL070WSH30) += tdo-tl070wsh30.o
obj-$(CONFIG_VIDEO_MCDE_SIMPLE) += mcde_simple.o

157
drivers/video/samsung-ltl106hl02.c Normal file
View file

@ -0,0 +1,157 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Samsung LTL106HL02-001 DSI panel driver
*
* Copyright (c) 2020 Anton Bambura <jenneron@protonmail.com>
* Copyright (c) 2023 Svyatoslav Ryhel <clamor95@gmail.com>
* Copyright (c) 2024 Jonas Schwöbel <jonasschwoebel@yahoo.de>
*/
#include <backlight.h>
#include <dm.h>
#include <panel.h>
#include <log.h>
#include <mipi_dsi.h>
#include <asm/gpio.h>
#include <linux/delay.h>
#include <power/regulator.h>
struct samsung_ltl106hl02_priv {
struct udevice *vdd;
struct udevice *backlight;
struct gpio_desc reset_gpio;
};
static struct display_timing default_timing = {
.pixelclock.typ = 137000000,
.hactive.typ = 1920,
.hfront_porch.typ = 32,
.hback_porch.typ = 64,
.hsync_len.typ = 32,
.vactive.typ = 1080,
.vfront_porch.typ = 2,
.vback_porch.typ = 26,
.vsync_len.typ = 3,
};
static int samsung_ltl106hl02_enable_backlight(struct udevice *dev)
{
struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
struct mipi_dsi_device *dsi = plat->device;
int ret;
ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
if (ret < 0) {
log_debug("%s: failed to exit sleep mode: %d\n",
__func__, ret);
return ret;
}
mdelay(70);
ret = mipi_dsi_dcs_set_display_on(dsi);
if (ret < 0) {
log_debug("%s: failed to enable display: %d\n",
__func__, ret);
return ret;
}
mdelay(5);
return 0;
}
static int samsung_ltl106hl02_set_backlight(struct udevice *dev, int percent)
{
struct samsung_ltl106hl02_priv *priv = dev_get_priv(dev);
int ret;
ret = backlight_enable(priv->backlight);
if (ret)
return ret;
return backlight_set_brightness(priv->backlight, percent);
}
static int samsung_ltl106hl02_timings(struct udevice *dev,
struct display_timing *timing)
{
memcpy(timing, &default_timing, sizeof(*timing));
return 0;
}
static int samsung_ltl106hl02_of_to_plat(struct udevice *dev)
{
struct samsung_ltl106hl02_priv *priv = dev_get_priv(dev);
int ret;
ret = uclass_get_device_by_phandle(UCLASS_PANEL_BACKLIGHT, dev,
"backlight", &priv->backlight);
if (ret) {
log_debug("%s: cannot get backlight: ret = %d\n",
__func__, ret);
return ret;
}
ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
"vdd-supply", &priv->vdd);
if (ret)
log_debug("%s: cannot get vdd-supply: error %d\n",
__func__, ret);
ret = gpio_request_by_name(dev, "reset-gpios", 0,
&priv->reset_gpio, GPIOD_IS_OUT);
if (ret)
log_debug("%s: cannot get reset-gpios: error %d\n",
__func__, ret);
return 0;
}
static int samsung_ltl106hl02_hw_init(struct udevice *dev)
{
struct samsung_ltl106hl02_priv *priv = dev_get_priv(dev);
dm_gpio_set_value(&priv->reset_gpio, 1);
regulator_set_enable_if_allowed(priv->vdd, 1);
/* Dataheets states at least 8.5 msec for vdd stabilization */
mdelay(10);
dm_gpio_set_value(&priv->reset_gpio, 0);
return 0;
}
static int samsung_ltl106hl02_probe(struct udevice *dev)
{
struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
/* fill characteristics of DSI data link */
plat->lanes = 4;
plat->format = MIPI_DSI_FMT_RGB888;
plat->mode_flags = MIPI_DSI_MODE_VIDEO;
return samsung_ltl106hl02_hw_init(dev);
}
static const struct panel_ops samsung_ltl106hl02_ops = {
.enable_backlight = samsung_ltl106hl02_enable_backlight,
.set_backlight = samsung_ltl106hl02_set_backlight,
.get_display_timing = samsung_ltl106hl02_timings,
};
static const struct udevice_id samsung_ltl106hl02_ids[] = {
{ .compatible = "samsung,ltl106hl02-001" },
{ }
};
U_BOOT_DRIVER(samsung_ltl106hl02) = {
.name = "samsung_ltl106hl02",
.id = UCLASS_PANEL,
.of_match = samsung_ltl106hl02_ids,
.ops = &samsung_ltl106hl02_ops,
.of_to_plat = samsung_ltl106hl02_of_to_plat,
.probe = samsung_ltl106hl02_probe,
.plat_auto = sizeof(struct mipi_dsi_panel_plat),
.priv_auto = sizeof(struct samsung_ltl106hl02_priv),
};