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 2560×1600 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-lq101r1sx01.c | 282 ++++++++++++++++++++++++++++++ 3 files changed, 292 insertions(+) create mode 100644 drivers/video/sharp-lq101r1sx01.c
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 7808ae7919..8ef7690744 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -564,6 +564,15 @@ config VIDEO_LCD_SAMSUNG_LTL106HL02 LCD module found in Microsoft Surface 2. The panel has a FullHD resolution (1920x1080).
+config VIDEO_LCD_SHARP_LQ101R1SX01 + tristate "Sharp LQ101R1SX01 2560x1600 DSI video mode panel" + depends on PANEL && BACKLIGHT + select VIDEO_MIPI_DSI + help + Say Y here if you want to enable support for Sharp LQ101R1SX01 + LCD module found in ASUS Transformer TF701T. The panel has a + WQXGA resolution (2560x1600). + config VIDEO_LCD_SSD2828 bool "SSD2828 bridge chip" ---help--- diff --git a/drivers/video/Makefile b/drivers/video/Makefile index f3f70cd04a..5973bad742 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -64,6 +64,7 @@ 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-$(CONFIG_VIDEO_LCD_SHARP_LQ101R1SX01) += sharp-lq101r1sx01.o obj-$(CONFIG_VIDEO_LCD_SSD2828) += ssd2828.o obj-$(CONFIG_VIDEO_LCD_TDO_TL070WSH30) += tdo-tl070wsh30.o obj-$(CONFIG_VIDEO_MCDE_SIMPLE) += mcde_simple.o diff --git a/drivers/video/sharp-lq101r1sx01.c b/drivers/video/sharp-lq101r1sx01.c new file mode 100644 index 0000000000..5d8453fd79 --- /dev/null +++ b/drivers/video/sharp-lq101r1sx01.c @@ -0,0 +1,282 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Sharp LQ101R1SX01 DSI panel driver + * + * Copyright (C) 2014 NVIDIA Corporation + * Copyright (c) 2023 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 <power/regulator.h> + +struct sharp_lq101r1sx01_priv { + struct udevice *backlight; + struct udevice *panel_sec; + struct udevice *vcc; +}; + +static struct display_timing default_timing = { + .pixelclock.typ = 278000000, + .hactive.typ = 2560, + .hfront_porch.typ = 128, + .hback_porch.typ = 64, + .hsync_len.typ = 64, + .vactive.typ = 1600, + .vfront_porch.typ = 4, + .vback_porch.typ = 8, + .vsync_len.typ = 32, +}; + +static int sharp_lq101r1sx01_write(struct mipi_dsi_device *dsi, + u16 offset, u8 value) +{ + u8 payload[3] = { offset >> 8, offset & 0xff, value }; + int ret; + + ret = mipi_dsi_generic_write(dsi, payload, sizeof(payload)); + if (ret < 0) { + log_debug("%s: failed to write %02x to %04x: %zd\n", + __func__, value, offset, ret); + return ret; + } + + ret = mipi_dsi_dcs_nop(dsi); + if (ret < 0) { + log_debug("%s: failed to send DCS nop: %zd\n", + __func__, ret); + return ret; + } + + udelay(20); + + return 0; +} + +static int sharp_setup_symmetrical_split(struct mipi_dsi_device *left, + struct mipi_dsi_device *right, + struct display_timing *timing) +{ + int ret; + + ret = mipi_dsi_dcs_set_column_address(left, 0, + timing->hactive.typ / 2 - 1); + if (ret < 0) { + log_debug("%s: failed to set column address: %d\n", + __func__, ret); + return ret; + } + + ret = mipi_dsi_dcs_set_page_address(left, 0, timing->vactive.typ - 1); + if (ret < 0) { + log_debug("%s: failed to set page address: %d\n", + __func__, ret); + return ret; + } + + ret = mipi_dsi_dcs_set_column_address(right, timing->hactive.typ / 2, + timing->hactive.typ - 1); + if (ret < 0) { + log_debug("%s: failed to set column address: %d\n", + __func__, ret); + return ret; + } + + ret = mipi_dsi_dcs_set_page_address(right, 0, timing->vactive.typ - 1); + if (ret < 0) { + log_debug("%s: failed to set page address: %d\n", + __func__, ret); + return ret; + } + + return 0; +} + +static int sharp_lq101r1sx01_enable_backlight(struct udevice *dev) +{ + struct sharp_lq101r1sx01_priv *priv = dev_get_priv(dev); + + if (!priv->panel_sec) + return 0; + + struct mipi_dsi_panel_plat *plat = dev_get_plat(dev); + struct mipi_dsi_panel_plat *plat_sec = dev_get_plat(priv->panel_sec); + struct mipi_dsi_device *link1 = plat->device; + struct mipi_dsi_device *link2 = plat_sec->device; + int ret; + + ret = mipi_dsi_dcs_exit_sleep_mode(link1); + if (ret < 0) { + log_debug("%s: failed to exit sleep mode: %d\n", + __func__, ret); + return ret; + } + + /* set left-right mode */ + ret = sharp_lq101r1sx01_write(link1, 0x1000, 0x2a); + if (ret < 0) { + log_debug("%s: failed to set left-right mode: %d\n", + __func__, ret); + return ret; + } + + /* enable command mode */ + ret = sharp_lq101r1sx01_write(link1, 0x1001, 0x01); + if (ret < 0) { + log_debug("%s: failed to enable command mode: %d\n", + __func__, ret); + return ret; + } + + ret = mipi_dsi_dcs_set_pixel_format(link1, MIPI_DCS_PIXEL_FMT_24BIT); + if (ret < 0) { + log_debug("%s: failed to set pixel format: %d\n", + __func__, ret); + return ret; + } + + /* + * TODO: The device supports both left-right and even-odd split + * configurations, but this driver currently supports only the left- + * right split. To support a different mode a mechanism needs to be + * put in place to communicate the configuration back to the DSI host + * controller. + */ + ret = sharp_setup_symmetrical_split(link1, link2, &default_timing); + if (ret < 0) { + log_debug("%s: failed to set up symmetrical split: %d\n", + __func__, ret); + return ret; + } + + ret = mipi_dsi_dcs_set_display_on(link1); + if (ret < 0) { + log_debug("%s: failed to set panel on: %d\n", + __func__, ret); + return ret; + } + mdelay(20); + + return 0; +} + +static int sharp_lq101r1sx01_set_backlight(struct udevice *dev, int percent) +{ + struct sharp_lq101r1sx01_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_lq101r1sx01_timings(struct udevice *dev, + struct display_timing *timing) +{ + memcpy(timing, &default_timing, sizeof(*timing)); + return 0; +} + +static int sharp_lq101r1sx01_of_to_plat(struct udevice *dev) +{ + struct sharp_lq101r1sx01_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, + "power-supply", &priv->vcc); + if (ret) { + log_debug("%s: cannot get power-supply: ret = %d\n", + __func__, ret); + return ret; + } + + return 0; +} + +static int sharp_lq101r1sx01_hw_init(struct udevice *dev) +{ + struct sharp_lq101r1sx01_priv *priv = dev_get_priv(dev); + int ret; + + if (!priv->panel_sec) + return 0; + + ret = regulator_set_enable_if_allowed(priv->vcc, 1); + if (ret) { + log_debug("%s: enabling power-supply failed (%d)\n", + __func__, ret); + return ret; + } + + /* + * According to the datasheet, the panel needs around 10 ms to fully + * power up. At least another 120 ms is required before exiting sleep + * mode to make sure the panel is ready. Throw in another 20 ms for + * good measure. + */ + mdelay(150); + + return 0; +} + +static int sharp_lq101r1sx01_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; + + return sharp_lq101r1sx01_hw_init(dev); +} + +static const struct panel_ops sharp_lq101r1sx01_ops = { + .enable_backlight = sharp_lq101r1sx01_enable_backlight, + .set_backlight = sharp_lq101r1sx01_set_backlight, + .get_display_timing = sharp_lq101r1sx01_timings, +}; + +static const struct udevice_id sharp_lq101r1sx01_ids[] = { + { .compatible = "sharp,lq101r1sx01" }, + { } +}; + +U_BOOT_DRIVER(sharp_lq101r1sx01) = { + .name = "sharp_lq101r1sx01", + .id = UCLASS_PANEL, + .of_match = sharp_lq101r1sx01_ids, + .ops = &sharp_lq101r1sx01_ops, + .of_to_plat = sharp_lq101r1sx01_of_to_plat, + .probe = sharp_lq101r1sx01_probe, + .plat_auto = sizeof(struct mipi_dsi_panel_plat), + .priv_auto = sizeof(struct sharp_lq101r1sx01_priv), +};