This module is a color active matrix LCD module incorporating Oxide TFT (Thin Film Transistor). It is composed of a color TFT-LCD panel, driver ICs, a control circuit and power supply circuit, and a backlight unit. Graphics and texts can be displayed on a 1536x2048 dots panel with (16,777,216) colors by using MIPI DUAL DSI interface, supplying +3.3V DC supply voltage for TFT-LCD panel driving and supplying DC supply voltage for LED Backlight.
Signed-off-by: Svyatoslav Ryhel clamor95@gmail.com --- drivers/video/Kconfig | 9 + drivers/video/Makefile | 1 + drivers/video/sharp-lq079l1sx01.c | 275 ++++++++++++++++++++++++++++++ 3 files changed, 285 insertions(+) create mode 100644 drivers/video/sharp-lq079l1sx01.c
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 926dafe7a5a..b1ef73f3e5c 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -599,6 +599,15 @@ config VIDEO_LCD_SAMSUNG_LTL106HL02 LCD module found in Microsoft Surface 2. The panel has a FullHD resolution (1920x1080).
+config VIDEO_LCD_SHARP_LQ079L1SX01 + tristate "Sharp LQ079L1SX01 1536x2048 DSI video mode panel" + depends on PANEL && BACKLIGHT + select VIDEO_MIPI_DSI + help + Say Y here if you want to enable support for Sharp LQ079L1SX01 + LCD module found in Xiaomi Mi Pad tablet. The panel has a QXGA + resolution (1536x2048). + config VIDEO_LCD_SHARP_LQ101R1SX01 tristate "Sharp LQ101R1SX01 2560x1600 DSI video mode panel" depends on PANEL && BACKLIGHT diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 391ef8397bc..6073bc5234a 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -65,6 +65,7 @@ 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-$(CONFIG_VIDEO_LCD_SHARP_LQ079L1SX01) += sharp-lq079l1sx01.o obj-$(CONFIG_VIDEO_LCD_SHARP_LQ101R1SX01) += sharp-lq101r1sx01.o obj-$(CONFIG_VIDEO_LCD_SSD2828) += ssd2828.o obj-$(CONFIG_VIDEO_LCD_TDO_TL070WSH30) += tdo-tl070wsh30.o diff --git a/drivers/video/sharp-lq079l1sx01.c b/drivers/video/sharp-lq079l1sx01.c new file mode 100644 index 00000000000..03ff5d6ced4 --- /dev/null +++ b/drivers/video/sharp-lq079l1sx01.c @@ -0,0 +1,275 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Sharp LQ079L1SX01 DSI panel driver + * + * Copyright (c) 2024 Svyatoslav Ryhel clamor95@gmail.com + */ + +#include <backlight.h> +#include <dm.h> +#include <panel.h> +#include <log.h> +#include <mipi_dsi.h> +#include <linux/delay.h> +#include <asm/gpio.h> +#include <power/regulator.h> + +struct sharp_lq079l1sx01_priv { + struct udevice *backlight; + struct udevice *panel_sec; + + struct udevice *avdd; + struct udevice *vddio; + struct udevice *vsp; + struct udevice *vsn; + + struct gpio_desc reset_gpio; +}; + +static struct display_timing default_timing = { + .pixelclock.typ = 215000000, + .hactive.typ = 1536, + .hfront_porch.typ = 136, + .hback_porch.typ = 28, + .hsync_len.typ = 28, + .vactive.typ = 2048, + .vfront_porch.typ = 14, + .vback_porch.typ = 8, + .vsync_len.typ = 2, +}; + +static int dcs_write_one(struct mipi_dsi_device *dsi, u8 cmd, u8 data) +{ + return mipi_dsi_dcs_write(dsi, cmd, &data, 1); +} + +static int sharp_lq079l1sx01_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 %s: %d\n", + __func__, dev->parent->name, ret); + } + mdelay(120); + + ret = dcs_write_one(dsi, MIPI_DCS_SET_DISPLAY_BRIGHTNESS, 0xff); + if (ret < 0) { + log_debug("%s: failed to SET_DISPLAY_BRIGHTNESS %s: %d\n", + __func__, dev->parent->name, ret); + } + ret = dcs_write_one(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x01); + if (ret < 0) { + log_debug("%s: failed to WRITE_POWER_SAVE %s: %d\n", + __func__, dev->parent->name, ret); + } + ret = dcs_write_one(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x2c); + if (ret < 0) { + log_debug("%s: failed to WRITE_CONTROL_DISPLAY %s: %d\n", + __func__, dev->parent->name, ret); + } + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + log_debug("%s: failed to set panel on %s: %d\n", + __func__, dev->parent->name, ret); + } + + return 0; +} + +static int sharp_lq079l1sx01_set_backlight(struct udevice *dev, int percent) +{ + struct sharp_lq079l1sx01_priv *priv = dev_get_priv(dev); + int ret; + + if (!priv->panel_sec) + return 0; + + ret = backlight_enable(priv->backlight); + if (ret) + return ret; + + return backlight_set_brightness(priv->backlight, percent); +} + +static int sharp_lq079l1sx01_timings(struct udevice *dev, + struct display_timing *timing) +{ + memcpy(timing, &default_timing, sizeof(*timing)); + return 0; +} + +static int sharp_lq079l1sx01_of_to_plat(struct udevice *dev) +{ + struct sharp_lq079l1sx01_priv *priv = dev_get_priv(dev); + int ret; + + /* If node has no link2 it is secondary panel */ + if (!dev_read_bool(dev, "link2")) + return 0; + + ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev, + "link2", &priv->panel_sec); + if (ret) { + log_debug("%s: cannot get secondary panel: ret = %d\n", + __func__, ret); + return 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, + "avdd-supply", &priv->avdd); + if (ret) { + log_debug("%s: cannot get avdd-supply: ret = %d\n", + __func__, ret); + return ret; + } + + ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev, + "vddio-supply", &priv->vddio); + if (ret) { + log_debug("%s: cannot get vddio-supply: ret = %d\n", + __func__, ret); + return ret; + } + + ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev, + "vsp-supply", &priv->vsp); + if (ret) { + log_debug("%s: cannot get vsp-supply: ret = %d\n", + __func__, ret); + return ret; + } + + ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev, + "vsn-supply", &priv->vsn); + if (ret) { + log_debug("%s: cannot get vsn-supply: ret = %d\n", + __func__, ret); + return ret; + } + + ret = gpio_request_by_name(dev, "reset-gpios", 0, + &priv->reset_gpio, GPIOD_IS_OUT); + if (ret) { + log_debug("%s: cannot get reser-gpios (%d)\n", + __func__, ret); + return ret; + } + + return 0; +} + +static int sharp_lq079l1sx01_hw_init(struct udevice *dev) +{ + struct sharp_lq079l1sx01_priv *priv = dev_get_priv(dev); + int ret; + + if (!priv->panel_sec) + return 0; + + ret = regulator_set_enable_if_allowed(priv->vddio, 1); + if (ret) { + log_debug("%s: enabling vddio-supply failed (%d)\n", + __func__, ret); + return ret; + } + + ret = regulator_set_enable_if_allowed(priv->avdd, 1); + if (ret) { + log_debug("%s: enabling avdd-supply failed (%d)\n", + __func__, ret); + return ret; + } + + mdelay(12); + + ret = regulator_set_enable_if_allowed(priv->vsp, 1); + if (ret) { + log_debug("%s: enabling vsp-supply failed (%d)\n", + __func__, ret); + return ret; + } + + mdelay(12); + + ret = regulator_set_enable_if_allowed(priv->vsn, 1); + if (ret) { + log_debug("%s: enabling vsn-supply failed (%d)\n", + __func__, ret); + return ret; + } + + mdelay(24); + + ret = dm_gpio_set_value(&priv->reset_gpio, 0); + if (ret) { + log_debug("%s: error disabling reset-gpios (%d)\n", + __func__, ret); + return ret; + } + udelay(3); + + ret = dm_gpio_set_value(&priv->reset_gpio, 1); + if (ret) { + log_debug("%s: error enabling reset-gpios (%d)\n", + __func__, ret); + return ret; + } + udelay(3); + + ret = dm_gpio_set_value(&priv->reset_gpio, 0); + if (ret) { + log_debug("%s: error disabling reset-gpios (%d)\n", + __func__, ret); + return ret; + } + mdelay(32); + + return 0; +} + +static int sharp_lq079l1sx01_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 | MIPI_DSI_MODE_LPM; + + return sharp_lq079l1sx01_hw_init(dev); +} + +static const struct panel_ops sharp_lq079l1sx01_ops = { + .enable_backlight = sharp_lq079l1sx01_enable_backlight, + .set_backlight = sharp_lq079l1sx01_set_backlight, + .get_display_timing = sharp_lq079l1sx01_timings, +}; + +static const struct udevice_id sharp_lq079l1sx01_ids[] = { + { .compatible = "sharp,lq079l1sx01" }, + { } +}; + +U_BOOT_DRIVER(sharp_lq079l1sx01) = { + .name = "sharp_lq079l1sx01", + .id = UCLASS_PANEL, + .of_match = sharp_lq079l1sx01_ids, + .ops = &sharp_lq079l1sx01_ops, + .of_to_plat = sharp_lq079l1sx01_of_to_plat, + .probe = sharp_lq079l1sx01_probe, + .plat_auto = sizeof(struct mipi_dsi_panel_plat), + .priv_auto = sizeof(struct sharp_lq079l1sx01_priv), +};